docs: sync the author list from git history

I don't have a script for this because it requires some manual fixups.

Change-Id: I19f36b953c98d6bc0c09040c27b964b288360c0e

.docker-travis.sh

@@ -1,47 +0,0 @@
-#!/bin/bash
-
-set -e
-
-IMAGE_NAME=telecominfraproject/oopt-gnpy
-IMAGE_TAG=$(git describe --tags)
-
-ALREADY_FOUND=0
-docker pull ${IMAGE_NAME}:${IMAGE_TAG} && ALREADY_FOUND=1
-
-if [[ $ALREADY_FOUND == 0 ]]; then
-  docker build . -t ${IMAGE_NAME}
-  docker tag ${IMAGE_NAME} ${IMAGE_NAME}:${IMAGE_TAG}
-
-  # shared directory setup: do not clobber the real data
-  mkdir trash
-  cd trash
-  docker run -it --rm --volume $(pwd):/shared ${IMAGE_NAME} gnpy-transmission-example
-else
-  echo "Image ${IMAGE_NAME}:${IMAGE_TAG} already available, will just update the other tags"
-fi
-
-docker images
-
-do_docker_login() {
-  echo "${DOCKER_PASSWORD}" | docker login -u "${DOCKER_USERNAME}" --password-stdin
-}
-
-if [[ "${TRAVIS_PULL_REQUEST}" == "false" ]]; then
-  if [[ "${TRAVIS_BRANCH}" == "develop" || "${TRAVIS_BRANCH}" == "docker" ]]; then
-    echo "Publishing latest"
-    docker tag ${IMAGE_NAME}:${IMAGE_TAG} ${IMAGE_NAME}:latest
-    do_docker_login
-    if [[ $ALREADY_FOUND == 0 ]]; then
-      docker push ${IMAGE_NAME}:${IMAGE_TAG}
-    fi
-    docker push ${IMAGE_NAME}:latest
-  elif [[ "${TRAVIS_BRANCH}" == "master" ]]; then
-    echo "Publishing stable"
-    docker tag ${IMAGE_NAME}:${IMAGE_TAG} ${IMAGE_NAME}:stable
-    do_docker_login
-    if [[ $ALREADY_FOUND == 0 ]]; then
-      docker push ${IMAGE_NAME}:${IMAGE_TAG}
-    fi
-    docker push ${IMAGE_NAME}:stable
-  fi
-fi

.github/workflows/main.yml

@@ -11,23 +11,25 @@ jobs:
     name: Tox test
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
         with:
           fetch-depth: 0
       - uses: fedora-python/tox-github-action@v0.4
         with:
           tox_env: ${{ matrix.tox_env }}
           dnf_install: ${{ matrix.dnf_install }}
-      - uses: codecov/codecov-action@29386c70ef20e286228c72b668a06fd0e8399192
+      - uses: codecov/codecov-action@v3.1.1
         if: ${{ endswith(matrix.tox_env, '-cover') }}
         with:
           files: ${{ github.workspace }}/cover/coverage.xml
     strategy:
+      fail-fast: false
       matrix:
         tox_env:
           - py38
           - py39
-          - py310-cover
+          - py310
+          - py311-cover
         include:
           - tox_env: docs
             dnf_install: graphviz
@@ -38,13 +40,13 @@ jobs:
     name: PyPI packaging
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
         with:
           fetch-depth: 0
-      - uses: actions/setup-python@v2
+      - uses: actions/setup-python@v4
         name: Install Python
         with:
-          python-version: '3.10'
+          python-version: '3.11'
       - uses: casperdcl/deploy-pypi@bb869aafd89f657ceaafe9561d3b5584766c0f95
         with:
           password: ${{ secrets.PYPI_API_TOKEN }}
@@ -62,7 +64,7 @@ jobs:
         with:
           username: jktjkt
           password: ${{ secrets.DOCKERHUB_TOKEN }}
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
         with:
           fetch-depth: 0
       - name: Extract tag name
@@ -92,21 +94,27 @@ jobs:
             telecominfraproject/oopt-gnpy:${{ steps.extract_tag_name.outputs.GIT_DESC }}
             telecominfraproject/oopt-gnpy:latest
 
-  windows:
+  other-platforms:
-    name: Tests on Windows
+    name: Tests on other platforms
-    runs-on: windows-2019
+    runs-on: ${{ matrix.os }}
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
         with:
           fetch-depth: 0
-      - uses: actions/setup-python@v2
+      - uses: actions/setup-python@v4
         with:
           python-version: ${{ matrix.python_version }}
       - run: |
+          pip install -r tests/requirements.txt
           pip install --editable .
-          pip install 'pytest>=6.2.5,<7'
           pytest -vv
     strategy:
+      fail-fast: false
       matrix:
-        python_version:
+        include:
-          - "3.10"
+          - os: windows-2019
+            python_version: "3.10"
+          - os: windows-2022
+            python_version: "3.11"
+          - os: macos-12
+            python_version: "3.11"

.travis.yml

@@ -1,27 +0,0 @@
-dist: focal
-os: linux
-language: python
-services: docker
-python:
-  - "3.8"
-  - "3.9"
-before_install:
-  - sudo apt-get -y install graphviz
-install: skip
-script:
-  - pip install --editable .
-  - pip install pytest-cov rstcheck
-  - pytest --cov-report=xml --cov=gnpy -v
-  - pip install -r docs/requirements.txt
-  - rstcheck --ignore-roles cite *.rst
-  - sphinx-build -W --keep-going docs/ x-throwaway-location
-after_success:
-  - bash <(curl -s https://codecov.io/bash)
-jobs:
-  include:
-    - stage: test
-      name: Docker image
-      script:
-        - git fetch --unshallow
-        - ./.docker-travis.sh
-        - docker images

.zuul.yaml

@@ -2,10 +2,18 @@
 - project:
     check:
       jobs:
-        - tox-py38
+        - tox-py38:
-        - tox-py39
+            vars:
-        - tox-py310-cover
+              ensure_tox_version: '<4'
-        - tox-docs-f35
+        - tox-py39:
+            vars:
+              ensure_tox_version: '<4'
+        - tox-py310-cover:
+            vars:
+              ensure_tox_version: '<4'
+        - tox-docs-f36:
+            vars:
+              ensure_tox_version: '<4'
         - coverage-diff:
             voting: false
             dependencies:
@@ -16,7 +24,11 @@
               coverage_job_name_current: tox-py310-cover
         - tox-linters-diff-n-report:
             voting: false
-        - tox-py310-cover-previous
+            vars:
+              ensure_tox_version: '<4'
+        - tox-py310-cover-previous:
+            vars:
+              ensure_tox_version: '<4'
     tag:
       jobs:
         - oopt-release-python:

AUTHORS.rst

@@ -11,18 +11,21 @@ To learn how to contribute, please see CONTRIBUTING.md
 - Brian Taylor (Facebook) <briantaylor@fb.com>
 - David Boertjes (Ciena) <dboertje@ciena.com>
 - Diego Landa (Facebook) <dlanda@fb.com>
+- Emmanuelle Delfour (Orange) <WEDE7391@orange.com>
 - Esther Le Rouzic (Orange) <esther.lerouzic@orange.com>
 - Gabriele Galimberti (Cisco) <ggalimbe@cisco.com>
 - Gert Grammel (Juniper Networks) <ggrammel@juniper.net>
+- Giacomo Borraccini (Politecnico di Torino) <giacomo.borraccini@polito.it>
 - Gilad Goldfarb (Facebook) <giladg@fb.com>
 - James Powell (Telecom Infra Project) <james.powell@telecominfraproject.com>
-- Jan Kundrát (Telecom Infra Project) <jan.kundrat@telecominfraproject.com>
+- Jan Kundrát (Telecom Infra Project) <jkt@jankundrat.com>
 - Jeanluc Augé (Orange) <jeanluc.auge@orange.com>
 - Jonas Mårtensson (RISE) <jonas.martensson@ri.se>
 - Mattia Cantono (Politecnico di Torino) <mattia.cantono@polito.it>
 - Miguel Garrich (University Catalunya) <miquel.garrich@upct.es>
 - Raj Nagarajan (Lumentum) <raj.nagarajan@lumentum.com>
 - Roberts Miculens (Lattelecom) <roberts.miculens@lattelecom.lv>
+- Sami Alavi (NUST) <sami.mansooralavi1999@gmail.com>
 - Shengxiang Zhu (University of Arizona) <szhu@email.arizona.edu>
 - Stefan Melin (Telia Company) <Stefan.Melin@teliacompany.com>
 - Vittorio Curri (Politecnico di Torino) <vittorio.curri@polito.it>

README.md

@@ -3,12 +3,12 @@
 [![Install via pip](https://img.shields.io/pypi/v/gnpy)](https://pypi.org/project/gnpy/)
 [![Python versions](https://img.shields.io/pypi/pyversions/gnpy)](https://pypi.org/project/gnpy/)
 [![Documentation status](https://readthedocs.org/projects/gnpy/badge/?version=master)](http://gnpy.readthedocs.io/en/master/?badge=master)
-[![GitHub Workflow Status](https://img.shields.io/github/workflow/status/Telecominfraproject/oopt-gnpy/build)](https://github.com/Telecominfraproject/oopt-gnpy/actions/workflows/main.yml)
+[![GitHub Workflow Status](https://img.shields.io/github/actions/workflow/status/Telecominfraproject/oopt-gnpy/main.yml)](https://github.com/Telecominfraproject/oopt-gnpy/actions/workflows/main.yml)
 [![Gerrit](https://img.shields.io/badge/patches-via%20Gerrit-blue)](https://review.gerrithub.io/q/project:Telecominfraproject/oopt-gnpy+is:open)
 [![Contributors](https://img.shields.io/github/contributors-anon/Telecominfraproject/oopt-gnpy)](https://github.com/Telecominfraproject/oopt-gnpy/graphs/contributors)
-[![Code Quality via LGTM.com](https://img.shields.io/lgtm/grade/python/github/Telecominfraproject/oopt-gnpy)](https://lgtm.com/projects/g/Telecominfraproject/oopt-gnpy/)
 [![Code Coverage via codecov](https://img.shields.io/codecov/c/github/Telecominfraproject/oopt-gnpy)](https://codecov.io/gh/Telecominfraproject/oopt-gnpy)
 [![DOI](https://zenodo.org/badge/DOI/10.5281/zenodo.3458319.svg)](https://doi.org/10.5281/zenodo.3458319)
+[![Matrix chat](https://img.shields.io/matrix/oopt-gnpy:matrix.org)](https://matrix.to/#/%23oopt-gnpy%3Afoss.wtf?via=matrix.org&via=foss.wtf)
 
 GNPy is an open-source, community-developed library for building route planning and optimization tools in real-world mesh optical networks.
 We are a consortium of operators, vendors, and academic researchers sponsored via the [Telecom Infra Project](http://telecominfraproject.com)'s [OOPT/PSE](https://telecominfraproject.com/open-optical-packet-transport) working group.
@@ -26,4 +26,6 @@ This example demonstrates how GNPy can be used to check the expected SNR at the
 ![Running a simple simulation example](https://telecominfraproject.github.io/oopt-gnpy/docs/images/transmission_main_example.svg)
 
 GNPy can do much more, including acting as a Path Computation Engine, tracking bandwidth requests, or advising the SDN controller about a best possible path through a large DWDM network.
-Learn more about this [in the documentation](https://gnpy.readthedocs.io/).
+Learn more about this [in the documentation](https://gnpy.readthedocs.io/), or give it a [try online at `gnpy.app`](https://gnpy.app/):
+
+[![Path propagation at gnpy.app](docs/images/2022-04-12-gnpy-app.png)](https://gnpy.app/)

docs/about-project.md

@@ -12,7 +12,7 @@ We encourage all interested people outside the TIP to [join the project](https:/
 
 `gnpy` is looking for additional contributors, especially those with experience planning and maintaining large-scale, real-world mesh optical networks.
 
-To get involved, please contact [Jan Kundrát](mailto:jan.kundrat@telecominfraproject.com) or [Gert Grammel](mailto:ggrammel@juniper.net).
+To get involved, please contact [Jan Kundrát](mailto:jkt@jankundrat.com) or [Gert Grammel](mailto:ggrammel@juniper.net).
 
 `gnpy` contributions are currently limited to members of [TIP](http://telecominfraproject.com).
 Membership is free and open to all.

docs/concepts.rst

@@ -29,7 +29,7 @@ This path is directional, and all "GNPy elements" along the path match the unidi
 
 The network topology contains not just the physical topology of the network, but also references to the :ref:`equipment library<concepts-equipment>` and a set of *operating parameters* for each entity.
 These parameters include the **fiber length** of each fiber, the connector **attenutation losses**, or an amplifier's specific **gain setting**.
-The topology is specified via :ref:`XLS files<excel>` or via :ref:`JSON<json>`.
+The topology is specified via :ref:`XLS files<excel>` or via :ref:`JSON<legacy-json>`.
 
 .. _complete-vs-incomplete:
 

docs/extending.rst

@@ -100,10 +100,10 @@ Raman Amplifiers
 
 An accurate simulation of Raman amplification requires knowledge of:
 
-- the *power* and *wavelength* of all Raman pumping lasers,
+* the *power* and *wavelength* of all Raman pumping lasers,
-- the *direction*, whether it is co-propagating or counter-propagating,
+* the *direction*, whether it is co-propagating or counter-propagating,
-- the Raman efficiency of the fiber,
+* the Raman efficiency of the fiber,
-- the fiber temperature.
+* the fiber temperature.
 
 Under certain scenarios it is useful to be able to run a simulation without an accurate Raman description.
 For these purposes, it is possible to approximate a Raman amplifier via a fixed-gain EDFA with the :ref:`polynomial NF<ext-nf-model-polynomial-NF>` model using :math:`\text{a} = \text{b} = \text{c} = 0`, and a desired effective :math:`\text{d} = NF`.

docs/intro.rst

@@ -10,7 +10,7 @@ fully-functional programs.
 
     **Note**: *If you are a network operator or involved in route planning and
     optimization for your organization, please contact project maintainer Jan
-    Kundrát <jan.kundrat@telecominfraproject.com>. gnpy is looking for users with
+    Kundrát <jkt@jankundrat.com>. gnpy is looking for users with
     specific, delineated use cases to drive requirements for future
     development.*
 

docs/json.rst

@@ -1,4 +1,4 @@
-.. _json:
+.. _legacy-json:
 
 JSON Input Files
 ================
@@ -44,7 +44,7 @@ For all amplifier models:
 | ``type_variety``       | (string)  | a unique name to ID the amplifier in the|
 |                        |           | JSON/Excel template topology input file |
 +------------------------+-----------+-----------------------------------------+
-| ``out_voa_auto``       | (boolean) | auto_design feature to optimize the     |
+| ``out_voa_auto``       | (boolean) | auto-design feature to optimize the     |
 |                        |           | amplifier output VOA. If true, output   |
 |                        |           | VOA is present and will be used to push |
 |                        |           | amplifier gain to its maximum, within   |
@@ -176,36 +176,36 @@ ROADM
 
 The user can only modify the value of existing parameters:
 
-+--------------------------+-----------+---------------------------------------------+
++-------------------------------+-----------+----------------------------------------------------+
-| field                    |   type    | description                                 |
+| field                         |   type    | description                                        |
-+==========================+===========+=============================================+
++===============================+===========+====================================================+
-| ``target_pch_out_db``    | (number)  | Auto-design sets the ROADM egress channel   |
+| ``target_pch_out_db``         | (number)  | Default :ref:`equalization strategy<equalization>` |
-|                          |           | power. This reflects typical control loop   |
+| or                            |           | for this ROADM type.                               |
-|                          |           | algorithms that adjust ROADM losses to      |
+| ``target_psd_out_mWperGHz``   |           |                                                    |
-|                          |           | equalize channels (eg coming from different |
+| or                            |           | Auto-design sets the ROADM egress channel          |
-|                          |           | ingress direction or add ports)             |
+| ``target_out_mWperSlotWidth`` |           | power. This reflects typical control loop          |
-|                          |           | This is the default value                   |
+| (mutually exclusive)          |           | algorithms that adjust ROADM losses to             |
-|                          |           | Roadm/params/target_pch_out_db if no value  |
+|                               |           | equalize channels (e.g., coming from               |
-|                          |           | is given in the ``Roadm`` element in the    |
+|                               |           | different ingress direction or add ports).         |
-|                          |           | topology input description.                 |
+|                               |           |                                                    |
-|                          |           | This default value is ignored if a          |
+|                               |           | These values are used as defaults when no          |
-|                          |           | params/target_pch_out_db value is input in  |
+|                               |           | overrides are set per each ``Roadm``               |
-|                          |           | the topology for a given ROADM.             |
+|                               |           | element in the network topology.                   |
-+--------------------------+-----------+---------------------------------------------+
++-------------------------------+-----------+----------------------------------------------------+
-| ``add_drop_osnr``        | (number)  | OSNR contribution from the add/drop ports   |
+| ``add_drop_osnr``             | (number)  | OSNR contribution from the add/drop ports          |
-+--------------------------+-----------+---------------------------------------------+
++-------------------------------+-----------+----------------------------------------------------+
-| ``pmd``                  | (number)  | Polarization mode dispersion (PMD). (s)     |
+| ``pmd``                       | (number)  | Polarization mode dispersion (PMD). (s)            |
-+--------------------------+-----------+---------------------------------------------+
++-------------------------------+-----------+----------------------------------------------------+
-| ``restrictions``         | (dict of  | If non-empty, keys ``preamp_variety_list``  |
+| ``restrictions``              | (dict of  | If non-empty, keys ``preamp_variety_list``         |
-|                          |  strings) | and ``booster_variety_list`` represent      |
+|                               |  strings) | and ``booster_variety_list`` represent             |
-|                          |           | list of ``type_variety`` amplifiers which   |
+|                               |           | list of ``type_variety`` amplifiers which          |
-|                          |           | are allowed for auto-design within ROADM's  |
+|                               |           | are allowed for auto-design within ROADM's         |
-|                          |           | line degrees.                               |
+|                               |           | line degrees.                                      |
-|                          |           |                                             |
+|                               |           |                                                    |
-|                          |           | If no booster should be placed on a degree, |
+|                               |           | If no booster should be placed on a degree,        |
-|                          |           | insert a ``Fused`` node on the degree       |
+|                               |           | insert a ``Fused`` node on the degree              |
-|                          |           | output.                                     |
+|                               |           | output.                                            |
-+--------------------------+-----------+---------------------------------------------+
++-------------------------------+-----------+----------------------------------------------------+
 
 Global parameters
 -----------------
@@ -223,6 +223,9 @@ For amplifiers defined in the topology JSON input but whose ``gain = 0`` (placeh
 The file ``sim_params.json`` contains the tuning parameters used within both the ``gnpy.science_utils.RamanSolver`` and
 the ``gnpy.science_utils.NliSolver`` for the evaluation of the Raman profile and the NLI generation, respectively.
 
+If amplifiers don't have settings, auto-design also sets amplifiers gain, output VOA and target powers according to [J. -L. Auge, V. Curri and E. Le Rouzic, Open Design for Multi-Vendor Optical Networks, OFC 2019](https://ieeexplore.ieee.org/document/8696699), equation 4.
+See ``delta_power_range_db`` for more explaination.
+
 +---------------------------------------------+-----------+---------------------------------------------+
 | field                                       |   type    | description                                 |
 +=============================================+===========+=============================================+
@@ -283,23 +286,27 @@ Span configuration is not a list (which may change in later releases) and the us
 +-------------------------------------+-----------+---------------------------------------------+
 | field                               | type      | description                                 |
 +=====================================+===========+=============================================+
-| ``power_mode``                      | (boolean) | If false, gain mode. Auto-design sets       |
+| ``power_mode``                      | (boolean) | If false, **gain mode**. In the gain mode,  |
-|                                     |           | amplifier gain = preceding span loss,       |
+|                                     |           | only gain settings are used for             |
-|                                     |           | unless the amplifier exists and its         |
+|                                     |           | propagation, and ``delta_p`` is ignored.    |
-|                                     |           | gain > 0 in the topology input JSON.        |
+|                                     |           | If no ``gain_target`` is set in an          |
-|                                     |           | If true, power mode (recommended for        |
+|                                     |           | amplifier, auto-design computes one         |
-|                                     |           | auto-design and power sweep.)               |
+|                                     |           | according to the ``delta_power_range``      |
-|                                     |           | Auto-design sets amplifier power            |
+|                                     |           | optimisation range.                         |
-|                                     |           | according to delta_power_range. If the      |
+|                                     |           | The gain mode                               |
-|                                     |           | amplifier exists with gain > 0 in the       |
+|                                     |           | is recommended if all the amplifiers        |
-|                                     |           | topology JSON input, then its gain is       |
+|                                     |           | have already consistent gain settings in    |
-|                                     |           | translated into a power target/channel.     |
+|                                     |           | the topology input file.                    |
-|                                     |           | Moreover, when performing a power sweep     |
+|                                     |           |                                             |
-|                                     |           | (see ``power_range_db`` in the SI           |
+|                                     |           | If true, **power mode**. In the power mode, |
-|                                     |           | configuration library) the power sweep      |
+|                                     |           | only the ``delta_p`` is used for            |
-|                                     |           | is performed w/r/t this power target,       |
+|                                     |           | propagation, and ``gain_target`` is         |
-|                                     |           | regardless of preceding amplifiers          |
+|                                     |           | ignored.                                    |
-|                                     |           | power saturation/limitations.               |
+|                                     |           | The power mode is recommended for           |
+|                                     |           | auto-design and power sweep.                |
+|                                     |           | If no ``delta_p``  is set,                  |
+|                                     |           | auto-design sets an amplifier power target  |
+|                                     |           | according to delta_power_range_db.          |
 +-------------------------------------+-----------+---------------------------------------------+
 | ``delta_power_range_db``            | (number)  | Auto-design only, power-mode                |
 |                                     |           | only. Specifies the [min, max, step]        |
@@ -404,9 +411,9 @@ Span configuration is not a list (which may change in later releases) and the us
 SpectralInformation
 ~~~~~~~~~~~~~~~~~~~
 
-The user can only modify the value of existing parameters.
+GNPy requires a description of all channels that are propagated through the network.
-It defines a spectrum of N identical carriers.
+Flexgrid channel partitioning is available since the 2.7 release via the extra ``--spectrum`` option.
-While the code libraries allow for different carriers and power levels, the current user parametrization only allows one carrier type and one power/channel definition.
+In the simplest case, homogeneous channel allocation can be defined via the ``SpectralInformation`` construct which defines a spectrum of N identical carriers:
 
 +----------------------+-----------+-------------------------------------------+
 | field                |   type    | description                               |
@@ -427,11 +434,20 @@ While the code libraries allow for different carriers and power levels, the curr
 +----------------------+-----------+-------------------------------------------+
 | ``tx_osnr``          | (number)  | In dB. OSNR out from transponder.         |
 +----------------------+-----------+-------------------------------------------+
-| ``power_dbm``        | (number)  | Reference channel power. In gain mode     |
+| ``power_dbm``        | (number)  | Reference channel power, in dBm.          |
-|                      |           | (see spans/power_mode = false), all gain  |
+|                      |           | In gain mode                              |
-|                      |           | settings are offset w/r/t this reference  |
+|                      |           | (see spans/power_mode = false), if no     |
-|                      |           | power. In power mode, it is the           |
+|                      |           | gain is set in an amplifier, auto-design  |
-|                      |           | reference power for                       |
+|                      |           | sets gain to meet this reference          |
+|                      |           | power. If amplifiers gain is set,         |
+|                      |           | ``power_dbm`` is                          |
+|                      |           | ignored.                                  |
+|                      |           |                                           |
+|                      |           | In power mode, the ``power_dbm``          |
+|                      |           | is the reference power for                |
+|                      |           | the ``delta_p`` settings in amplifiers.   |
+|                      |           | It is also the reference power for        |
+|                      |           | auto-design power optimisation range      |
 |                      |           | Spans/delta_power_range_db. For example,  |
 |                      |           | if delta_power_range_db = `[0,0,0]`, the  |
 |                      |           | same power=power_dbm is launched in every |
@@ -439,12 +455,166 @@ While the code libraries allow for different carriers and power levels, the curr
 |                      |           | with the power_dbm value: even if a       |
 |                      |           | power sweep is defined (see after) the    |
 |                      |           | design is not repeated.                   |
+|                      |           |                                           |
+|                      |           | If the ``--power`` CLI option is used,    |
+|                      |           | its value replaces this parameter.        |
 +----------------------+-----------+-------------------------------------------+
-| ``power_range_db``   | (number)  | Power sweep excursion around power_dbm.   |
+| ``power_range_db``   | (number)  | Power sweep excursion around              |
-|                      |           | It is not the min and max channel power   |
+|                      |           | ``power_dbm``.                            |
-|                      |           | values! The reference power becomes:      |
+|                      |           | This defines a list of reference powers   |
+|                      |           | to run the propagation, in the range      |
 |                      |           | power_range_db + power_dbm.               |
+|                      |           | Power sweep uses the ``delta_p`` targets  |
+|                      |           | or, if they have not been set, the ones   |
+|                      |           | computed by auto-design, regardless of    |
+|                      |           | of preceding amplifiers' power            |
+|                      |           | saturation.                               |
+|                      |           |                                           |
+|                      |           | Power sweep is an easy way to find the    |
+|                      |           | optimal reference power.                  |
+|                      |           |                                           |
+|                      |           | Power sweep excursion is ignored in case  |
+|                      |           | of gain mode.                             |
 +----------------------+-----------+-------------------------------------------+
 | ``sys_margins``      | (number)  | In dB. Added margin on min required       |
 |                      |           | transceiver OSNR.                         |
 +----------------------+-----------+-------------------------------------------+
+
+.. _mixed-rate:
+
+Arbitrary channel definition
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Non-uniform channels are defined via a list of spectrum "partitions" which are defined in an extra JSON file via the ``--spectrum`` option.
+In this approach, each partition is internally homogeneous, but different partitions might use different channel widths, power targets, modulation rates, etc.
+
++----------------------+-----------+-------------------------------------------+
+| field                |   type    | description                               |
++======================+===========+===========================================+
+| ``f_min``,           | (number)  | In Hz. Mandatory.                         |
+| ``f_max``            |           | Define partition :math:`f_{min}` is       |
+|                      |           | the first carrier central frequency       |
+|                      |           | :math:`f_{max}` is the last one.          |
+|                      |           | :math:`f_{min}` -:math:`f_{max}`          |
+|                      |           | partitions must not overlap.              |
+|                      |           |                                           |
+|                      |           | Note that the meaning of ``f_min`` and    |
+|                      |           | ``f_max`` is different than the one in    |
+|                      |           | ``SpectralInformation``.                  |
++----------------------+-----------+-------------------------------------------+
+| ``baud_rate``        | (number)  | In Hz. Mandatory. Simulated baud rate.    |
++----------------------+-----------+-------------------------------------------+
+| ``slot_width``       | (number)  | In Hz. Carrier spectrum occupation.       |
+|                      |           | Carriers of this partition are spaced at  |
+|                      |           | ``slot_width`` offsets.                   |
++----------------------+-----------+-------------------------------------------+
+| ``roll_off``         | (number)  | Pure number between 0 and 1. Mandatory    |
+|                      |           | TX signal roll-off shape. Used by         |
+|                      |           | Raman-aware simulation code.              |
++----------------------+-----------+-------------------------------------------+
+| ``tx_osnr``          | (number)  | In dB. Optional. OSNR out from            |
+|                      |           | transponder. Default value is 40 dB.      |
++----------------------+-----------+-------------------------------------------+
+| ``delta_pdb``        | (number)  | In dB. Optional. Power offset compared to |
+|                      |           | the reference power used for design       |
+|                      |           | (SI block in equipment library) to be     |
+|                      |           | applied by ROADM to equalize the carriers |
+|                      |           | in this partition. Default value is 0 dB. |
++----------------------+-----------+-------------------------------------------+
+
+For example this example:
+
+.. code-block:: json
+
+ {
+   "SI":[
+     {
+       "f_min": 191.4e12,
+       "f_max":193.1e12,
+       "baud_rate": 32e9,
+       "slot_width": 50e9,
+       "roll_off": 0.15,
+       "tx_osnr": 40
+     },
+     {
+       "f_min": 193.1625e12,
+       "f_max":195e12,
+       "baud_rate": 64e9,
+       "delta_pdb": 3,
+       "slot_width": 75e9,
+       "roll_off": 0.15,
+       "tx_osnr": 40
+     }
+   ]
+ }
+
+...defines a spectrum split into two parts.
+Carriers with central frequencies ranging from 191.4 THz to 193.1 THz will have 32 GBaud rate and will be spaced by 50 Ghz.
+Carriers with central frequencies ranging from 193.1625 THz to 195 THz will have 64 GBaud rate and will be spaced by 75 GHz with 3 dB power offset.
+
+If the SI reference carrier is set to ``power_dbm`` = 0dBm, and the ROADM has ``target_pch_out_db`` set to -20 dBm, then all channels ranging from 191.4 THz to 193.1 THz will have their power equalized to -20 + 0 dBm (due to the 0 dB power offset).
+All channels ranging from 193.1625 THz to 195 THz will have their power equalized to -20 + 3 = -17 dBm (total power signal + noise).
+
+Note that first carrier of the second partition has center frequency 193.1625 THz (its spectrum occupation ranges from 193.125 THz to 193.2 THz).
+The last carrier of the second partition has center frequency 193.1 THz and spectrum occupation ranges from 193.075 THz to 193.125 THz.
+There is no overlap of the occupation and both share the same boundary.
+
+.. _equalization:
+
+Equalization choices
+~~~~~~~~~~~~~~~~~~~~
+
+ROADMs typically equalize the optical power across multiple channels using one of the available equalization strategies — either targeting a specific output power, or a specific power spectral density (PSD), or a spectfic power spectral density using slot_width as spectrum width reference (PSW).
+All of these strategies can be adjusted by a per-channel power offset.
+The equalization strategy can be defined globally per a ROADM model, or per each ROADM instance in the topology, and within a ROADM also on a per-degree basis.
+
+Let's consider some example for the equalization. Suppose that the types of signal to be propagated are the following:
+
+.. code-block:: json
+
+   {
+        "baud_rate": 32e9,
+        "f_min":191.3e12,
+        "f_max":192.3e12,
+        "spacing": 50e9,
+        "label": 1
+    },
+    {
+        "baud_rate": 64e9,
+        "f_min":193.3e12,
+        "f_max":194.3e12,
+        "spacing": 75e9,
+        "label": 2
+    }
+
+
+with the PSD equalization in a ROADM:
+
+.. code-block:: json
+
+    {
+      "uid": "roadm A",
+      "type": "Roadm",
+      "params": {
+        "target_psd_out_mWperGHz": 3.125e-4,
+      }
+    },
+
+
+This means that power out of the ROADM will be computed as 3.125e-4 * 32 = 0.01 mW ie -20 dBm for label 1 types of carriers
+and 3.125e4 * 64 = 0.02 mW ie -16.99 dBm for label2 channels. So a ratio of ~ 3 dB between target powers for these carriers.
+
+With the PSW equalization:
+
+.. code-block:: json
+
+    {
+      "uid": "roadm A",
+      "type": "Roadm",
+      "params": {
+        "target_out_mWperSlotWidth": 2.0e-4,
+      }
+    },
+
+the power out of the ROADM will be computed as 2.0e-4 * 50 = 0.01 mW ie -20 dBm for label 1 types of carriers
+and 2.0e4 * 75 = 0.015 mW ie -18.24 dBm for label2 channels. So a ratio of ~ 1.76 dB between target powers for these carriers.

gnpy/core/elements.py

@@ -21,16 +21,19 @@ instance as a result.
 """
 
 from numpy import abs, array, errstate, ones, interp, mean, pi, polyfit, polyval, sum, sqrt, log10, exp, asarray, full,\
-    squeeze, zeros, append, flip, outer
+    squeeze, zeros, append, flip, outer, ndarray
 from scipy.constants import h, c
 from scipy.interpolate import interp1d
 from collections import namedtuple
+from typing import Union
 
-from gnpy.core.utils import lin2db, db2lin, arrange_frequencies, snr_sum
+
+from gnpy.core.utils import lin2db, db2lin, arrange_frequencies, snr_sum, per_label_average, pretty_summary_print, \
+    watt2dbm, psd2powerdbm
 from gnpy.core.parameters import RoadmParams, FusedParams, FiberParams, PumpParams, EdfaParams, EdfaOperational
 from gnpy.core.science_utils import NliSolver, RamanSolver
-from gnpy.core.info import SpectralInformation
+from gnpy.core.info import SpectralInformation, ReferenceCarrier
-from gnpy.core.exceptions import NetworkTopologyError, SpectrumError
+from gnpy.core.exceptions import NetworkTopologyError, SpectrumError, ParametersError
 
 
 class Location(namedtuple('Location', 'latitude longitude city region')):
@@ -86,6 +89,7 @@ class Transceiver(_Node):
         self.pdl = None
         self.penalties = {}
         self.total_penalty = 0
+        self.propagated_labels = [""]
 
     def _calc_cd(self, spectral_info):
         """ Updates the Transceiver property with the CD of the received channels. CD in ps/nm.
@@ -116,6 +120,7 @@ class Transceiver(_Node):
 
     def _calc_snr(self, spectral_info):
         with errstate(divide='ignore'):
+            self.propagated_labels = spectral_info.label
             self.baud_rate = spectral_info.baud_rate
             ratio_01nm = lin2db(12.5e9 / self.baud_rate)
             # set raw values to record original calculation, before update_snr()
@@ -173,23 +178,22 @@ class Transceiver(_Node):
         if self.snr is None or self.osnr_ase is None:
             return f'{type(self).__name__} {self.uid}'
 
-        snr = round(mean(self.snr), 2)
+        snr = per_label_average(self.snr, self.propagated_labels)
-        osnr_ase = round(mean(self.osnr_ase), 2)
+        osnr_ase = per_label_average(self.osnr_ase, self.propagated_labels)
-        osnr_ase_01nm = round(mean(self.osnr_ase_01nm), 2)
+        osnr_ase_01nm = per_label_average(self.osnr_ase_01nm, self.propagated_labels)
-        snr_01nm = round(mean(self.snr_01nm), 2)
+        snr_01nm = per_label_average(self.snr_01nm, self.propagated_labels)
         cd = mean(self.chromatic_dispersion)
         pmd = mean(self.pmd)
         pdl = mean(self.pdl)
 
         result = '\n'.join([f'{type(self).__name__} {self.uid}',
-
+                            f'  GSNR (0.1nm, dB):          {pretty_summary_print(snr_01nm)}',
-                          f'  GSNR (0.1nm, dB):          {snr_01nm:.2f}',
+                            f'  GSNR (signal bw, dB):      {pretty_summary_print(snr)}',
-                          f'  GSNR (signal bw, dB):      {snr:.2f}',
+                            f'  OSNR ASE (0.1nm, dB):      {pretty_summary_print(osnr_ase_01nm)}',
-                          f'  OSNR ASE (0.1nm, dB):      {osnr_ase_01nm:.2f}',
+                            f'  OSNR ASE (signal bw, dB):  {pretty_summary_print(osnr_ase)}',
-                          f'  OSNR ASE (signal bw, dB):  {osnr_ase:.2f}',
+                            f'  CD (ps/nm):                {cd:.2f}',
-                          f'  CD (ps/nm):                {cd:.2f}',
+                            f'  PMD (ps):                  {pmd:.2f}',
-                          f'  PMD (ps):                  {pmd:.2f}',
+                            f'  PDL (dB):                  {pdl:.2f}'])
-                          f'  PDL (dB):                  {pdl:.2f}'])
 
         cd_penalty = self.penalties.get('chromatic_dispersion')
         if cd_penalty is not None:
@@ -215,63 +219,185 @@ class Roadm(_Node):
     def __init__(self, *args, params=None, **kwargs):
         if not params:
             params = {}
-        super().__init__(*args, params=RoadmParams(**params), **kwargs)
+        try:
-        self.pch_out_db = self.params.target_pch_out_db
+            super().__init__(*args, params=RoadmParams(**params), **kwargs)
+        except ParametersError as e:
+            raise ParametersError(f'Config error in {kwargs["uid"]}: {e}') from e
+
+        # Target output power for the reference carrier, can only be computed on the fly, because it depends
+        # on the path, since it depends on the equalization definition on the degree.
+        self.ref_pch_out_dbm = None
         self.loss = 0  # auto-design interest
-        self.effective_loss = None
+
+        # Optical power of carriers are equalized by the ROADM, so that the experienced loss is not the same for
+        # different carriers. The ref_effective_loss records the loss for a reference carrier.
+        self.ref_effective_loss = None
+
         self.passive = True
         self.restrictions = self.params.restrictions
-        self.per_degree_pch_out_db = self.params.per_degree_pch_out_db
+        self.propagated_labels = [""]
+        # element contains the two types of equalisation parameters, but only one is not None or empty
+        # target for equalization for the ROADM only one must be not None
+        self.target_pch_out_dbm = self.params.target_pch_out_db
+        self.target_psd_out_mWperGHz = self.params.target_psd_out_mWperGHz
+        self.target_out_mWperSlotWidth = self.params.target_out_mWperSlotWidth
+        self.per_degree_pch_out_dbm = self.params.per_degree_pch_out_db
+        self.per_degree_pch_psd = self.params.per_degree_pch_psd
+        self.per_degree_pch_psw = self.params.per_degree_pch_psw
 
     @property
     def to_json(self):
-        return {'uid': self.uid,
+        if self.target_pch_out_dbm is not None:
-                'type': type(self).__name__,
+            equalisation, value = 'target_pch_out_db', self.target_pch_out_dbm
-                'params': {
+        elif self.target_psd_out_mWperGHz is not None:
-                    'target_pch_out_db': self.pch_out_db,
+            equalisation, value = 'target_psd_out_mWperGHz', self.target_psd_out_mWperGHz
-                    'restrictions': self.restrictions,
+        elif self.target_out_mWperSlotWidth is not None:
-                    'per_degree_pch_out_db': self.per_degree_pch_out_db
+            equalisation, value = 'target_out_mWperSlotWidth', self.target_out_mWperSlotWidth
-                    },
+        else:
-                'metadata': {
+            assert False, 'There must be one default equalization defined in ROADM'
-                    'location': self.metadata['location']._asdict()
+        to_json = {
-                }
+            'uid': self.uid,
-                }
+            'type': type(self).__name__,
+            'params': {
+                equalisation: value,
+                'restrictions': self.restrictions,
+            },
+            'metadata': {
+                'location': self.metadata['location']._asdict()
+            }
+        }
+        # several per_degree equalization may coexist on different degrees
+        if self.per_degree_pch_out_dbm:
+            to_json['params']['per_degree_pch_out_db'] = self.per_degree_pch_out_dbm
+        if self.per_degree_pch_psd:
+            to_json['params']['per_degree_psd_out_mWperGHz'] = self.per_degree_pch_psd
+        if self.per_degree_pch_psw:
+            to_json['params']['per_degree_psd_out_mWperSlotWidth'] = self.per_degree_pch_psw
+        return to_json
 
     def __repr__(self):
         return f'{type(self).__name__}(uid={self.uid!r}, loss={self.loss!r})'
 
     def __str__(self):
-        if self.effective_loss is None:
+        if self.ref_effective_loss is None:
             return f'{type(self).__name__} {self.uid}'
 
+        total_pch = pretty_summary_print(per_label_average(self.pch_out_dbm, self.propagated_labels))
         return '\n'.join([f'{type(self).__name__} {self.uid}',
-                          f'  effective loss (dB):  {self.effective_loss:.2f}',
+                          f'  effective loss (dB):     {self.ref_effective_loss:.2f}',
-                          f'  pch out (dBm):        {self.pch_out_db:.2f}'])
+                          f'  reference pch out (dBm): {self.ref_pch_out_dbm:.2f}',
+                          f'  actual pch out (dBm):    {total_pch}'])
+
+    def get_roadm_target_power(self, ref_carrier: ReferenceCarrier = None,
+                               spectral_info: SpectralInformation = None) -> Union[float, ndarray]:
+        """Computes the power in dBm for a reference carrier or for a spectral information.
+        power is computed based on equalization target.
+        if spectral_info baud_rate is baud_rate = [32e9, 42e9, 64e9, 42e9, 32e9], and
+        target_pch_out_dbm is defined to -20 dbm, then the function returns an array of powers
+        [-20, -20, -20, -20, -20]
+        if target_psd_out_mWperGHz is defined instead with 3.125e-4mW/GHz then it returns
+        [-20, -18.819, -16.9897, -18.819, -20]
+        if instead a reference_baud_rate is defined, the functions computes the result for a
+        single reference carrier whose baud_rate is reference_baudrate
+        """
+        if spectral_info:
+            if self.target_pch_out_dbm is not None:
+                return full(len(spectral_info.channel_number), self.target_pch_out_dbm)
+            if self.target_psd_out_mWperGHz is not None:
+                return psd2powerdbm(self.target_psd_out_mWperGHz, spectral_info.baud_rate)
+            if self.target_out_mWperSlotWidth is not None:
+                return psd2powerdbm(self.target_out_mWperSlotWidth, spectral_info.slot_width)
+        else:
+            if self.target_pch_out_dbm is not None:
+                return self.target_pch_out_dbm
+            if self.target_psd_out_mWperGHz is not None:
+                return psd2powerdbm(self.target_psd_out_mWperGHz, ref_carrier.baud_rate)
+            if self.target_out_mWperSlotWidth is not None:
+                return psd2powerdbm(self.target_out_mWperSlotWidth, ref_carrier.slot_width)
+        return None
+
+    def get_per_degree_ref_power(self, degree, ref_carrier):
+        """Get the target power in dBm out of ROADM degree for the reference bandwidth
+        If no equalization is defined on this degree use the ROADM level one.
+        """
+        if degree in self.per_degree_pch_out_dbm:
+            return self.per_degree_pch_out_dbm[degree]
+        elif degree in self.per_degree_pch_psd:
+            return psd2powerdbm(self.per_degree_pch_psd[degree], ref_carrier.baud_rate)
+        elif degree in self.per_degree_pch_psw:
+            return psd2powerdbm(self.per_degree_pch_psw[degree], ref_carrier.slot_width)
+        return self.get_roadm_target_power(ref_carrier)
+
+    def get_per_degree_power(self, degree, spectral_info):
+        """Get the target power in dBm out of ROADM degree for the spectral information
+        If no equalization is defined on this degree use the ROADM level one.
+        """
+        if degree in self.per_degree_pch_out_dbm:
+            return self.per_degree_pch_out_dbm[degree]
+        elif degree in self.per_degree_pch_psd:
+            return psd2powerdbm(self.per_degree_pch_psd[degree], spectral_info.baud_rate)
+        return self.get_roadm_target_power(spectral_info=spectral_info)
 
     def propagate(self, spectral_info, degree):
-        # pin_target and loss are read from eqpt_config.json['Roadm']
+        """Equalization targets are read from topology file if defined and completed with default
-        # all ingress channels in xpress are set to this power level
+        definition of the library.
-        # but add channels are not, so we define an effective loss
+        If the input power is lower than the target one, use the input power instead because
-        # in the case of add channels
+        a ROADM doesn't amplify, it can only attenuate.
-        # find the target power on this degree:
+        There is no difference for add or express : the same target is applied. For the moment
-        # if a target power has been defined for this degree use it else use the global one.
+        propagates operates with spectral info carriers all having the same source or destination.
-        # if the input power is lower than the target one, use the input power instead because
+        """
-        # a ROADM doesn't amplify, it can only attenuate
         # TODO maybe add a minimum loss for the ROADM
-        per_degree_pch = self.per_degree_pch_out_db[degree] \
+
-            if degree in self.per_degree_pch_out_db else self.pch_out_db
+        # find the target power for the reference carrier
-        self.pch_out_db = min(spectral_info.pref.p_spani, per_degree_pch)
+        ref_per_degree_pch = self.get_per_degree_ref_power(degree, spectral_info.pref.ref_carrier)
-        self.effective_loss = spectral_info.pref.p_spani - self.pch_out_db
+        # find the target powers for each signal carrier
+        per_degree_pch = self.get_per_degree_power(degree, spectral_info=spectral_info)
+
+        # Definition of ref_pch_out_dbm for the reference channel:
+        # Depending on propagation upstream from this ROADM, the input power (p_spani) might be smaller than
+        # the target power out configured for this ROADM degree's egress. Since ROADM does not amplify,
+        # the power out of the ROADM for the ref channel is the min value between target power and input power.
+        # (TODO add a minimum loss for the ROADM crossing)
+        self.ref_pch_out_dbm = min(spectral_info.pref.p_spani, ref_per_degree_pch)
+        # Definition of effective_loss:
+        # Optical power of carriers are equalized by the ROADM, so that the experienced loss is not the same for
+        # different carriers. effective_loss records the loss for the reference carrier.
+        self.ref_effective_loss = spectral_info.pref.p_spani - self.ref_pch_out_dbm
         input_power = spectral_info.signal + spectral_info.nli + spectral_info.ase
-        min_power = min(lin2db(input_power * 1e3))
+        target_power_per_channel = per_degree_pch + spectral_info.delta_pdb_per_channel
-        per_degree_pch = per_degree_pch if per_degree_pch < min_power else min_power
+        # Computation of the per channel target power according to equalization policy
-        delta_power = lin2db(input_power * 1e3) - per_degree_pch
+        # If target_power_per_channel has some channels power above input power, then the whole target is reduced.
+        # For example, if user specifies delta_pdb_per_channel:
+        # freq1: 1dB, freq2: 3dB, freq3: -3dB, and target is -20dBm out of the ROADM,
+        # then the target power for each channel uses the specified delta_pdb_per_channel.
+        # target_power_per_channel[f1, f2, f3] = -19, -17, -23
+        # However if input_signal = -23, -16, -26, then the target can not be applied, because
+        # -23 < -19dBm and -26 < -23dBm. Then the target is only applied to signals whose power is above the
+        # threshold. others are left unchanged and unequalized.
+        # the new target is [-23, -17, -26]
+        # and the attenuation to apply is [-23, -16, -26] - [-23, -17, -26] = [0, 1, 0]
+        # note that this changes the previous behaviour that equalized all identical channels based on the one
+        # that had the min power.
+        # This change corresponds to a discussion held during coders call. Please look at this document for
+        # a reference: https://telecominfraproject.atlassian.net/wiki/spaces/OOPT/pages/669679645/PSE+Meeting+Minutes
+        correction = (abs(watt2dbm(input_power) - target_power_per_channel)
+                      - (watt2dbm(input_power) - target_power_per_channel)) / 2
+        new_target = target_power_per_channel - correction
+        delta_power = watt2dbm(input_power) - new_target
+
         spectral_info.apply_attenuation_db(delta_power)
         spectral_info.pmd = sqrt(spectral_info.pmd ** 2 + self.params.pmd ** 2)
         spectral_info.pdl = sqrt(spectral_info.pdl ** 2 + self.params.pdl ** 2)
+        self.pch_out_dbm = watt2dbm(spectral_info.signal + spectral_info.nli + spectral_info.ase)
+        self.propagated_labels = spectral_info.label
 
     def update_pref(self, spectral_info):
-        spectral_info.pref = spectral_info.pref._replace(p_span0=spectral_info.pref.p_span0, p_spani=self.pch_out_db)
+        """Update Reference power
+
+        This modifies the spectral info in-place. Only the `pref` is updated with new p_spani,
+        while p_span0 is not changed.
+        """
+        spectral_info.pref = spectral_info.pref._replace(p_spani=self.ref_pch_out_dbm)
 
     def __call__(self, spectral_info, degree):
         self.propagate(spectral_info, degree=degree)
@@ -326,7 +452,7 @@ class Fiber(_Node):
         super().__init__(*args, params=FiberParams(**params), **kwargs)
         self.pch_out_db = None
         self.passive = True
-
+        self.propagated_labels = [""]
         # Raman efficiency matrix function of the delta frequency constructed such that each row is related to a
         # fixed frequency: positive elements represent a gain (from higher frequency) and negative elements represent
         # a loss (to lower frequency)
@@ -376,6 +502,7 @@ class Fiber(_Node):
         if self.pch_out_db is None:
             return f'{type(self).__name__} {self.uid}'
 
+        total_pch = pretty_summary_print(per_label_average(self.pch_out_dbm, self.propagated_labels))
         return '\n'.join([f'{type(self).__name__}          {self.uid}',
                           f'  type_variety:                {self.type_variety}',
                           f'  length (km):                 {self.params.length * 1e-3:.2f}',
@@ -383,7 +510,8 @@ class Fiber(_Node):
                           f'  total loss (dB):             {self.loss:.2f}',
                           f'  (includes conn loss (dB) in: {self.params.con_in:.2f} out: {self.params.con_out:.2f})',
                           f'  (conn loss out includes EOL margin defined in eqpt_config.json)',
-                          f'  pch out (dBm): {self.pch_out_db:.2f}'])
+                          f'  reference pch out (dBm):     {self.pch_out_db:.2f}',
+                          f'  actual pch out (dBm):        {total_pch}'])
 
     def loss_coef_func(self, frequency):
         frequency = asarray(frequency)
@@ -473,6 +601,8 @@ class Fiber(_Node):
         # apply the attenuation due to the output connector loss
         attenuation_out_db = self.params.con_out
         spectral_info.apply_attenuation_db(attenuation_out_db)
+        self.pch_out_dbm = watt2dbm(spectral_info.signal + spectral_info.nli + spectral_info.ase)
+        self.propagated_labels = spectral_info.label
 
     def update_pref(self, spectral_info):
         # in case of Raman, the resulting loss of the fiber is not equivalent to self.loss
@@ -545,6 +675,8 @@ class RamanFiber(Fiber):
         # apply the attenuation due to the output connector loss
         attenuation_out_db = self.params.con_out
         spectral_info.apply_attenuation_db(attenuation_out_db)
+        self.pch_out_dbm = watt2dbm(spectral_info.signal + spectral_info.nli + spectral_info.ase)
+        self.propagated_labels = spectral_info.label
 
 
 class Edfa(_Node):
@@ -573,6 +705,7 @@ class Edfa(_Node):
         self.delta_p = self.operational.delta_p  # delta P with Pref (power swwep) in power mode
         self.tilt_target = self.operational.tilt_target
         self.out_voa = self.operational.out_voa
+        self.propagated_labels = [""]
 
     @property
     def to_json(self):
@@ -580,7 +713,7 @@ class Edfa(_Node):
                 'type': type(self).__name__,
                 'type_variety': self.params.type_variety,
                 'operational': {
-                    'gain_target': round(self.effective_gain, 6),
+                    'gain_target': round(self.effective_gain, 6) if self.effective_gain else None,
                     'delta_p': self.delta_p,
                     'tilt_target': self.tilt_target,
                     'out_voa': self.out_voa
@@ -606,6 +739,7 @@ class Edfa(_Node):
         if self.pin_db is None or self.pout_db is None:
             return f'{type(self).__name__} {self.uid}'
         nf = mean(self.nf)
+        total_pch = pretty_summary_print(per_label_average(self.pch_out_dbm, self.propagated_labels))
         return '\n'.join([f'{type(self).__name__} {self.uid}',
                           f'  type_variety:           {self.params.type_variety}',
                           f'  effective gain(dB):     {self.effective_gain:.2f}',
@@ -618,6 +752,7 @@ class Edfa(_Node):
                           f'  Delta_P (dB):           ' + (f'{self.delta_p:.2f}' if self.delta_p is not None else 'None'),
                           f'  target pch (dBm):       ' + (f'{self.target_pch_out_db:.2f}' if self.target_pch_out_db is not None else 'None'),
                           f'  effective pch (dBm):    {self.effective_pch_out_db:.2f}',
+                          f'  actual pch out (dBm):   {total_pch}',
                           f'  output VOA (dB):        {self.out_voa:.2f}'])
 
     def interpol_params(self, spectral_info):
@@ -639,7 +774,7 @@ class Edfa(_Node):
 
         self.nch = spectral_info.number_of_channels
         pin = spectral_info.signal + spectral_info.ase + spectral_info.nli
-        self.pin_db = lin2db(sum(pin * 1e3))
+        self.pin_db = watt2dbm(sum(pin))
         # The following should be changed when we have the new spectral information including slot widths.
         # For now, with homogeneous spectrum, we can calculate it as the difference between neighbouring channels.
         self.slot_width = self.channel_freq[1] - self.channel_freq[0]
@@ -652,15 +787,14 @@ class Edfa(_Node):
             self.effective_gain = self.target_pch_out_db - pref.p_spani
 
         """check power saturation and correct effective gain & power accordingly:"""
+        # Compute the saturation accounting for actual power at the input of the amp
         self.effective_gain = min(
             self.effective_gain,
-            self.params.p_max - (pref.p_spani + pref.neq_ch)
+            self.params.p_max - self.pin_db
         )
-        #print(self.uid, self.effective_gain, self.operational.gain_target)
         self.effective_pch_out_db = round(pref.p_spani + self.effective_gain, 2)
 
         """check power saturation and correct target_gain accordingly:"""
-        #print(self.uid, self.effective_gain, self.pin_db, pref.p_spani)
         self.nf = self._calc_nf()
         self.gprofile = self._gain_profile(pin)
 
@@ -891,6 +1025,8 @@ class Edfa(_Node):
         spectral_info.apply_gain_db(self.gprofile - self.out_voa)
         spectral_info.pmd = sqrt(spectral_info.pmd ** 2 + self.params.pmd ** 2)
         spectral_info.pdl = sqrt(spectral_info.pdl ** 2 + self.params.pdl ** 2)
+        self.pch_out_dbm = watt2dbm(spectral_info.signal + spectral_info.nli + spectral_info.ase)
+        self.propagated_labels = spectral_info.label
 
     def update_pref(self, spectral_info):
         spectral_info.pref = \

gnpy/core/equipment.py

@@ -66,9 +66,6 @@ def trx_mode_params(equipment, trx_type_variety='', trx_mode='', error_message=F
             trx_params['roll_off'] = default_si_data.roll_off
             trx_params['tx_osnr'] = default_si_data.tx_osnr
             trx_params['min_spacing'] = None
-            nch = automatic_nch(trx_params['f_min'], trx_params['f_max'], trx_params['spacing'])
-            trx_params['nb_channel'] = nch
-            print(f'There are {nch} channels propagating')
 
     trx_params['power'] = db2lin(default_si_data.power_dbm) * 1e-3
 

gnpy/core/info.py

@@ -12,9 +12,10 @@ from __future__ import annotations
 from collections import namedtuple
 from collections.abc import Iterable
 from typing import Union
+from dataclasses import dataclass
 from numpy import argsort, mean, array, append, ones, ceil, any, zeros, outer, full, ndarray, asarray
 
-from gnpy.core.utils import automatic_nch, lin2db, db2lin
+from gnpy.core.utils import automatic_nch, db2lin, watt2dbm
 from gnpy.core.exceptions import SpectrumError
 
 DEFAULT_SLOT_WIDTH_STEP = 12.5e9  # Hz
@@ -41,18 +42,21 @@ class Channel(namedtuple('Channel',
     """
 
 
-class Pref(namedtuple('Pref', 'p_span0, p_spani, neq_ch ')):
+class Pref(namedtuple('Pref', 'p_span0, p_spani, ref_carrier')):
     """noiseless reference power in dBm:
-    p_span0: inital target carrier power
+    p_span0: inital target carrier power for a reference channel defined by user
-    p_spani: carrier power after element i
+    p_spani: carrier power after element i for a reference channel defined by user
-    neq_ch: equivalent channel count in dB"""
+    ref_carrier records the baud rate of the reference channel
+    """
 
 
 class SpectralInformation(object):
-    """ Class containing the parameters of the entire WDM comb."""
+    """ Class containing the parameters of the entire WDM comb.
+    delta_pdb_per_channel: (per frequency) per channel delta power in dbm for the actual mix of channels"""
 
     def __init__(self, frequency: array, baud_rate: array, slot_width: array, signal: array, nli: array, ase: array,
-                 roll_off: array, chromatic_dispersion: array, pmd: array, pdl: array):
+                 roll_off: array, chromatic_dispersion: array, pmd: array, pdl: array, delta_pdb_per_channel: array,
+                 tx_osnr: array, ref_power: Pref, label: array):
         indices = argsort(frequency)
         self._frequency = frequency[indices]
         self._df = outer(ones(frequency.shape), frequency) - outer(frequency, ones(frequency.shape))
@@ -77,8 +81,10 @@ class SpectralInformation(object):
         self._chromatic_dispersion = chromatic_dispersion[indices]
         self._pmd = pmd[indices]
         self._pdl = pdl[indices]
-        pref = lin2db(mean(signal) * 1e3)
+        self._delta_pdb_per_channel = delta_pdb_per_channel[indices]
-        self._pref = Pref(pref, pref, lin2db(self._number_of_channels))
+        self._tx_osnr = tx_osnr[indices]
+        self._pref = ref_power
+        self._label = label[indices]
 
     @property
     def pref(self):
@@ -155,6 +161,10 @@ class SpectralInformation(object):
     def pmd(self):
         return self._pmd
 
+    @property
+    def label(self):
+        return self._label
+
     @pmd.setter
     def pmd(self, pmd):
         self._pmd = pmd
@@ -167,6 +177,22 @@ class SpectralInformation(object):
     def pdl(self, pdl):
         self._pdl = pdl
 
+    @property
+    def delta_pdb_per_channel(self):
+        return self._delta_pdb_per_channel
+
+    @delta_pdb_per_channel.setter
+    def delta_pdb_per_channel(self, delta_pdb_per_channel):
+        self._delta_pdb_per_channel = delta_pdb_per_channel
+
+    @property
+    def tx_osnr(self):
+        return self._tx_osnr
+
+    @tx_osnr.setter
+    def tx_osnr(self, tx_osnr):
+        self._tx_osnr = tx_osnr
+
     @property
     def channel_number(self):
         return self._channel_number
@@ -197,6 +223,12 @@ class SpectralInformation(object):
 
     def __add__(self, other: SpectralInformation):
         try:
+            # Note that pref.p_spanx from "self" and "other" must be identical for a given simulation (correspond to the
+            # the simulation setup):
+            # - for a given simulation there is only one design (one p_span0),
+            # - and p_spani is the propagation result of p_span0 so there should not be different p_spani either.
+            if (self.pref.p_span0 != other.pref.p_span0) or (self.pref.p_spani != other.pref.p_spani):
+                raise SpectrumError('reference powers of the spectrum are not identical')
             return SpectralInformation(frequency=append(self.frequency, other.frequency),
                                        slot_width=append(self.slot_width, other.slot_width),
                                        signal=append(self.signal, other.signal), nli=append(self.nli, other.nli),
@@ -206,10 +238,16 @@ class SpectralInformation(object):
                                        chromatic_dispersion=append(self.chromatic_dispersion,
                                                                    other.chromatic_dispersion),
                                        pmd=append(self.pmd, other.pmd),
-                                       pdl=append(self.pdl, other.pdl))
+                                       pdl=append(self.pdl, other.pdl),
+                                       delta_pdb_per_channel=append(self.delta_pdb_per_channel,
+                                                                    other.delta_pdb_per_channel),
+                                       tx_osnr=append(self.tx_osnr, other.tx_osnr),
+                                       ref_power=Pref(self.pref.p_span0, self.pref.p_spani, self.pref.ref_carrier),
+                                       label=append(self.label, other.label))
         except SpectrumError:
             raise SpectrumError('Spectra cannot be summed: channels overlapping.')
 
+
     def _replace(self, carriers, pref):
         self.chromatic_dispersion = array([c.chromatic_dispersion for c in carriers])
         self.pmd = array([c.pmd for c in carriers])
@@ -221,14 +259,18 @@ class SpectralInformation(object):
         return self
 
 
-def create_arbitrary_spectral_information(frequency: Union[ndarray, Iterable, int, float],
+def create_arbitrary_spectral_information(frequency: Union[ndarray, Iterable, float],
-                                          signal: Union[int, float, ndarray, Iterable],
+                                          signal: Union[float, ndarray, Iterable],
-                                          baud_rate: Union[int, float, ndarray, Iterable],
+                                          baud_rate: Union[float, ndarray, Iterable],
-                                          slot_width: Union[int, float, ndarray, Iterable] = None,
+                                          tx_osnr: Union[float, ndarray, Iterable],
-                                          roll_off: Union[int, float, ndarray, Iterable] = 0.,
+                                          delta_pdb_per_channel: Union[float, ndarray, Iterable] = 0.,
-                                          chromatic_dispersion: Union[int, float, ndarray, Iterable] = 0.,
+                                          slot_width: Union[float, ndarray, Iterable] = None,
-                                          pmd: Union[int, float, ndarray, Iterable] = 0.,
+                                          roll_off: Union[float, ndarray, Iterable] = 0.,
-                                          pdl: Union[int, float, ndarray, Iterable] = 0.):
+                                          chromatic_dispersion: Union[float, ndarray, Iterable] = 0.,
+                                          pmd: Union[float, ndarray, Iterable] = 0.,
+                                          pdl: Union[float, ndarray, Iterable] = 0.,
+                                          ref_power: Pref = None,
+                                          label: Union[str, ndarray, Iterable] = None):
     """This is just a wrapper around the SpectralInformation.__init__() that simplifies the creation of
     a non-uniform spectral information with NLI and ASE powers set to zero."""
     frequency = asarray(frequency)
@@ -244,11 +286,17 @@ def create_arbitrary_spectral_information(frequency: Union[ndarray, Iterable, in
         pdl = full(number_of_channels, pdl)
         nli = zeros(number_of_channels)
         ase = zeros(number_of_channels)
+        delta_pdb_per_channel = full(number_of_channels, delta_pdb_per_channel)
+        tx_osnr = full(number_of_channels, tx_osnr)
+        label = full(number_of_channels, label)
         return SpectralInformation(frequency=frequency, slot_width=slot_width,
                                    signal=signal, nli=nli, ase=ase,
                                    baud_rate=baud_rate, roll_off=roll_off,
                                    chromatic_dispersion=chromatic_dispersion,
-                                   pmd=pmd, pdl=pdl)
+                                   pmd=pmd, pdl=pdl,
+                                   delta_pdb_per_channel=delta_pdb_per_channel,
+                                   tx_osnr=tx_osnr,
+                                   ref_power=ref_power, label=label)
     except ValueError as e:
         if 'could not broadcast' in str(e):
             raise SpectrumError('Dimension mismatch in input fields.')
@@ -256,9 +304,82 @@ def create_arbitrary_spectral_information(frequency: Union[ndarray, Iterable, in
             raise
 
 
-def create_input_spectral_information(f_min, f_max, roll_off, baud_rate, power, spacing):
+def create_input_spectral_information(f_min, f_max, roll_off, baud_rate, power, spacing, tx_osnr, ref_carrier=None):
-    """ Creates a fixed slot width spectral information with flat power """
+    """ Creates a fixed slot width spectral information with flat power.
-    nb_channel = automatic_nch(f_min, f_max, spacing)
+    all arguments are scalar values"""
-    frequency = [(f_min + spacing * i) for i in range(1, nb_channel + 1)]
+    number_of_channels = automatic_nch(f_min, f_max, spacing)
+    frequency = [(f_min + spacing * i) for i in range(1, number_of_channels + 1)]
+    p_span0 = watt2dbm(power)
+    p_spani = watt2dbm(power)
+    delta_pdb_per_channel = zeros(number_of_channels)
+    label = [f'{baud_rate * 1e-9 :.2f}G' for i in range(number_of_channels)]
     return create_arbitrary_spectral_information(frequency, slot_width=spacing, signal=power, baud_rate=baud_rate,
-                                                 roll_off=roll_off)
+                                                 roll_off=roll_off, delta_pdb_per_channel=delta_pdb_per_channel,
+                                                 tx_osnr=tx_osnr,
+                                                 ref_power=Pref(p_span0=p_span0, p_spani=p_spani,
+                                                                ref_carrier=ref_carrier),
+                                                 label=label)
+
+
+def carriers_to_spectral_information(initial_spectrum: dict[float, Carrier], power: float,
+                                     ref_carrier: ReferenceCarrier) -> SpectralInformation:
+    """Initial spectrum is a dict with key = carrier frequency, and value a Carrier object.
+    :param initial_spectrum: indexed by frequency in Hz, with power offset (delta_pdb), baudrate, slot width,
+    tx_osnr and roll off.
+    :param power: power of the request
+    :param ref_carrier: reference carrier (baudrate) used for the reference channel
+    """
+    frequency = list(initial_spectrum.keys())
+    signal = [power * db2lin(c.delta_pdb) for c in initial_spectrum.values()]
+    roll_off = [c.roll_off for c in initial_spectrum.values()]
+    baud_rate = [c.baud_rate for c in initial_spectrum.values()]
+    delta_pdb_per_channel = [c.delta_pdb for c in initial_spectrum.values()]
+    slot_width = [c.slot_width for c in initial_spectrum.values()]
+    tx_osnr = [c.tx_osnr for c in initial_spectrum.values()]
+    label = [c.label for c in initial_spectrum.values()]
+    p_span0 = watt2dbm(power)
+    p_spani = watt2dbm(power)
+    return create_arbitrary_spectral_information(frequency=frequency, signal=signal, baud_rate=baud_rate,
+                                                 slot_width=slot_width, roll_off=roll_off,
+                                                 delta_pdb_per_channel=delta_pdb_per_channel, tx_osnr=tx_osnr,
+                                                 ref_power=Pref(p_span0=p_span0, p_spani=p_spani,
+                                                                ref_carrier=ref_carrier),
+                                                 label=label)
+
+
+@dataclass
+class Carrier:
+    """One channel in the initial mixed-type spectrum definition, each type being defined by
+    its delta_pdb (power offset with respect to reference power), baud rate, slot_width, roll_off
+    and tx_osnr. delta_pdb offset is applied to target power out of Roadm.
+    Label is used to group carriers which belong to the same partition when printing results.
+    """
+    delta_pdb: float
+    baud_rate: float
+    slot_width: float
+    roll_off: float
+    tx_osnr: float
+    label: str
+
+
+@dataclass
+class ReferenceCarrier:
+    """Reference channel type is used to determine target power out of ROADM for the reference channel when
+    constant power spectral density (PSD) equalization is set. Reference channel is the type that has been defined
+    in SI block and used for the initial design of the network.
+    Computing the power out of ROADM for the reference channel is required to correctly compute the loss
+    experienced by p_span_i in Roadm element.
+
+    Baud rate is required to find the target power in constant PSD: power = PSD_target * baud_rate.
+    For example, if target PSD is 3.125e4mW/GHz and reference carrier type a 32 GBaud channel then
+    output power should be -20 dBm and for a 64 GBaud channel power target would need 3 dB more: -17 dBm.
+
+    Slot width is required to find the target power in constant PSW (constant power per slot width equalization):
+    power = PSW_target * slot_width.
+    For example, if target PSW is 2e4mW/GHz and reference carrier type a 32 GBaud channel in a 50GHz slot width then
+    output power should be -20 dBm and for a 64 GBaud channel  in a 75 GHz slot width, power target would be -18.24 dBm.
+
+    Other attributes (like slot_width or roll-off) may be added there for future equalization purpose.
+    """
+    baud_rate: float
+    slot_width: float

gnpy/core/network.py

@@ -12,6 +12,7 @@ from operator import attrgetter
 from gnpy.core import ansi_escapes, elements
 from gnpy.core.exceptions import ConfigurationError, NetworkTopologyError
 from gnpy.core.utils import round2float, convert_length
+from gnpy.core.info import ReferenceCarrier
 from collections import namedtuple
 
 
@@ -237,22 +238,20 @@ def set_egress_amplifier(network, this_node, equipment, pref_ch_db, pref_total_d
     """ this node can be a transceiver or a ROADM (same function called in both cases)
     """
     power_mode = equipment['Span']['default'].power_mode
+    ref_carrier = ReferenceCarrier(baud_rate=equipment['SI']['default'].baud_rate,
+                                   slot_width=equipment['SI']['default'].spacing)
     next_oms = (n for n in network.successors(this_node) if not isinstance(n, elements.Transceiver))
-    this_node_degree = {k: v for k, v in this_node.per_degree_pch_out_db.items()} if hasattr(this_node, 'per_degree_pch_out_db') else {}
     for oms in next_oms:
         # go through all the OMS departing from the ROADM
         prev_node = this_node
         node = oms
-        # if isinstance(next_node, elements.Fused): #support ROADM wo egress amp for metro applications
+        if isinstance(this_node, elements.Transceiver):
-        #     node = find_last_node(next_node)
+            this_node_out_power = 0.0     # default value if this_node is a transceiver
-        #     next_node = next(n for n in network.successors(node))
+        if isinstance(this_node, elements.Roadm):
-        #     next_node = find_last_node(next_node)
+            # get target power out from ROADM for the reference carrier based on equalization settings
-        if node.uid not in this_node_degree:
+            this_node_out_power = this_node.get_per_degree_ref_power(degree=node.uid, ref_carrier=ref_carrier)
-            # if no target power is defined on this degree or no per degree target power is given use the global one
-            # if target_pch_out_db  is not an attribute, then the element must be a transceiver
-            this_node_degree[node.uid] = getattr(this_node.params, 'target_pch_out_db', 0)
         # use the target power on this degree
-        prev_dp = this_node_degree[node.uid] - pref_ch_db
+        prev_dp = this_node_out_power - pref_ch_db
         dp = prev_dp
         prev_voa = 0
         voa = 0
@@ -331,10 +330,28 @@ def set_egress_amplifier(network, this_node, equipment, pref_ch_db, pref_total_d
             prev_voa = voa
             prev_node = node
             node = next_node
-            # print(f'{node.uid}')
 
-    if isinstance(this_node, elements.Roadm):
+
-        this_node.per_degree_pch_out_db = {k: v for k, v in this_node_degree.items()}
+def set_roadm_per_degree_targets(roadm, network):
+    """Set target powers/PSD on all degrees
+    This is needed to populate per_degree_pch_out_dbm or per_degree_pch_psd or per_degree_pch_psw dicts when
+    they are not initialized by users.
+    """
+    next_oms = (n for n in network.successors(roadm) if not isinstance(n, elements.Transceiver))
+
+    for node in next_oms:
+        # go through all the OMS departing from the ROADM
+        if node.uid not in roadm.per_degree_pch_out_dbm and node.uid not in roadm.per_degree_pch_psd and \
+                node.uid not in roadm.per_degree_pch_psw:
+            # if no target power is defined on this degree or no per degree target power is given use the global one
+            if roadm.params.target_pch_out_db:
+                roadm.per_degree_pch_out_dbm[node.uid] = roadm.params.target_pch_out_db
+            elif roadm.params.target_psd_out_mWperGHz:
+                roadm.per_degree_pch_psd[node.uid] = roadm.params.target_psd_out_mWperGHz
+            elif roadm.params.target_out_mWperSlotWidth:
+                roadm.per_degree_pch_psw[node.uid] = roadm.params.target_out_mWperSlotWidth
+            else:
+                raise ConfigurationError(roadm.uid, 'needs an equalization target')
 
 
 def add_roadm_booster(network, roadm):
@@ -432,10 +449,10 @@ def calculate_new_length(fiber_length, bounds, target_length):
         return (length1, n_spans1)
     elif (bounds.start <= length2 <= bounds.stop) and not(bounds.start <= length1 <= bounds.stop):
         return (length2, n_spans2)
-    elif target_length - length1 < length2 - target_length:
+    elif length2 - target_length <= target_length - length1 and length2 <= bounds.stop:
-        return (length1, n_spans1)
-    else:
         return (length2, n_spans2)
+    else:
+        return (length1, n_spans1)
 
 
 def split_fiber(network, fiber, bounds, target_length, equipment):
@@ -547,6 +564,7 @@ def build_network(network, equipment, pref_ch_db, pref_total_db, no_insert_edfas
     add_fiber_padding(network, fibers, default_span_data.padding)
 
     for roadm in roadms:
+        set_roadm_per_degree_targets(roadm, network)
         set_egress_amplifier(network, roadm, equipment, pref_ch_db, pref_total_db)
 
     trx = [t for t in network.nodes() if isinstance(t, elements.Transceiver)]

gnpy/core/parameters.py

@@ -88,13 +88,22 @@ class SimParams(Parameters):
 
 class RoadmParams(Parameters):
     def __init__(self, **kwargs):
+        self.target_pch_out_db = kwargs.get('target_pch_out_db')
+        self.target_psd_out_mWperGHz = kwargs.get('target_psd_out_mWperGHz')
+        self.target_out_mWperSlotWidth = kwargs.get('target_out_mWperSlotWidth')
+        equalisation_type = ['target_pch_out_db', 'target_psd_out_mWperGHz', 'target_out_mWperSlotWidth']
+        temp = [kwargs.get(k) is not None for k in equalisation_type]
+        if sum(temp) > 1:
+            raise ParametersError('ROADM config contains more than one equalisation type.'
+                                  + 'Please choose only one', kwargs)
+        self.per_degree_pch_out_db = kwargs.get('per_degree_pch_out_db', {})
+        self.per_degree_pch_psd = kwargs.get('per_degree_psd_out_mWperGHz', {})
+        self.per_degree_pch_psw = kwargs.get('per_degree_psd_out_mWperSlotWidth', {})
         try:
-            self.target_pch_out_db = kwargs['target_pch_out_db']
             self.add_drop_osnr = kwargs['add_drop_osnr']
             self.pmd = kwargs['pmd']
             self.pdl = kwargs['pdl']
             self.restrictions = kwargs['restrictions']
-            self.per_degree_pch_out_db = kwargs['per_degree_pch_out_db'] if 'per_degree_pch_out_db' in kwargs else {}
         except KeyError as e:
             raise ParametersError(f'ROADM configurations must include {e}. Configuration: {kwargs}')
 

gnpy/core/science_utils.py

@@ -10,7 +10,7 @@ Solver definitions to calculate the Raman effect and the nonlinear interference
 The solvers take as input instances of the spectral information, the fiber and the simulation parameters
 """
 
-from numpy import interp, pi, zeros, shape, where, cos, array, append, ones, exp, arange, sqrt, empty, trapz, arcsinh, \
+from numpy import interp, pi, zeros, shape, where, cos, array, append, ones, exp, arange, sqrt, trapz, arcsinh, \
     clip, abs, sum, concatenate, flip, outer, inner, transpose, max, format_float_scientific, diag, prod, argwhere, \
     unique, argsort, cumprod
 from logging import getLogger
@@ -131,20 +131,20 @@ class RamanSolver:
                 cnt_frequency = array([pump.frequency for pump in fiber.raman_pumps
                                        if pump.propagation_direction == 'counterprop'])
                 # Co-propagating profile initialization
-                co_power_profile = empty([co_frequency.size, z.size])
+                co_power_profile = zeros([co_frequency.size, z.size])
                 if co_frequency.size:
                     co_cr = fiber.cr(co_frequency)
                     co_alpha = fiber.alpha(co_frequency)
                     co_power_profile = \
                         RamanSolver.first_order_derivative_solution(co_power, co_alpha, co_cr, z, lumped_losses)
                 # Counter-propagating profile initialization
-                cnt_power_profile = empty([co_frequency.size, z.size])
+                cnt_power_profile = zeros([cnt_frequency.size, z.size])
                 if cnt_frequency.size:
                     cnt_cr = fiber.cr(cnt_frequency)
                     cnt_alpha = fiber.alpha(cnt_frequency)
                     cnt_power_profile = \
                         flip(RamanSolver.first_order_derivative_solution(cnt_power, cnt_alpha, cnt_cr,
-                                                                         z[-1] - flip(z), flip(lumped_losses)))
+                                                                         z[-1] - flip(z), flip(lumped_losses)), axis=1)
                 # Co-propagating and Counter-propagating Profile Computation
                 if co_frequency.size and cnt_frequency.size:
                     co_power_profile, cnt_power_profile = \

gnpy/core/utils.py

@@ -9,7 +9,7 @@ This module contains utility functions that are used with gnpy.
 """
 
 from csv import writer
-from numpy import pi, cos, sqrt, log10, linspace, zeros, shape, where, logical_and
+from numpy import pi, cos, sqrt, log10, linspace, zeros, shape, where, logical_and, mean
 from scipy import constants
 
 from gnpy.core.exceptions import ConfigurationError
@@ -106,6 +106,69 @@ def db2lin(value):
     return 10**(value / 10)
 
 
+def watt2dbm(value):
+    """Convert Watt units to dBm
+
+    >>> round(watt2dbm(0.001), 1)
+    0.0
+    >>> round(watt2dbm(0.02), 1)
+    13.0
+    """
+    return lin2db(value * 1e3)
+
+
+def dbm2watt(value):
+    """Convert dBm units to Watt
+
+    >>> round(dbm2watt(0), 4)
+    0.001
+    >>> round(dbm2watt(-3), 4)
+    0.0005
+    >>> round(dbm2watt(13), 4)
+    0.02
+    """
+    return db2lin(value) * 1e-3
+
+
+def psd2powerdbm(psd_mwperghz, baudrate_baud):
+    """computes power in dBm based on baudrate in bauds and psd in mW/GHz
+
+    >>> round(psd2powerdbm(0.031176, 64e9),3)
+    3.0
+    >>> round(psd2powerdbm(0.062352, 32e9),3)
+    3.0
+    >>> round(psd2powerdbm(0.015625, 64e9),3)
+    0.0
+    """
+    return lin2db(baudrate_baud * psd_mwperghz * 1e-9)
+
+
+def power_dbm_to_psd_mw_ghz(power_dbm, baudrate_baud):
+    """computes power spectral density in  mW/GHz based on baudrate in bauds and power in dBm
+
+    >>> power_dbm_to_psd_mw_ghz(0, 64e9)
+    0.015625
+    >>> round(power_dbm_to_psd_mw_ghz(3, 64e9), 6)
+    0.031176
+    >>> round(power_dbm_to_psd_mw_ghz(3, 32e9), 6)
+    0.062352
+    """
+    return db2lin(power_dbm) / (baudrate_baud * 1e-9)
+
+
+def psd_mw_per_ghz(power_watt, baudrate_baud):
+    """computes power spectral density in  mW/GHz based on baudrate in bauds and power in W
+
+    >>> psd_mw_per_ghz(2e-3, 32e9)
+    0.0625
+    >>> psd_mw_per_ghz(1e-3, 64e9)
+    0.015625
+    >>> psd_mw_per_ghz(0.5e-3, 32e9)
+    0.015625
+    """
+    return power_watt * 1e3 / (baudrate_baud * 1e-9)
+
+
 def round2float(number, step):
     """Round a floating point number so that its "resolution" is not bigger than 'step'
 
@@ -166,6 +229,32 @@ def snr_sum(snr, bw, snr_added, bw_added=12.5e9):
     return snr
 
 
+def per_label_average(values, labels):
+    """computes the average per defined spectrum band, using labels
+
+    >>> labels = ['A', 'A', 'A', 'A', 'A', 'B', 'B', 'B', 'B', 'B', 'B', 'B', 'B', 'C', 'D', 'D', 'D', 'D']
+    >>> values = [28.51, 28.23, 28.15, 28.17, 28.36, 28.53, 28.64, 28.68, 28.7, 28.71, 28.72, 28.73, 28.74, 28.91, 27.96, 27.85, 27.87, 28.02]
+    >>> per_label_average(values, labels)
+    {'A': 28.28, 'B': 28.68, 'C': 28.91, 'D': 27.92}
+    """
+
+    label_set = sorted(set(labels))
+    summary = {}
+    for label in label_set:
+        vals = [val for val, lab in zip(values, labels) if lab == label]
+        summary[label] = round(mean(vals), 2)
+    return summary
+
+
+def pretty_summary_print(summary):
+    """Build a prettty string that shows the summary dict values per label with 2 digits
+    """
+    if len(summary) == 1:
+        return f'{list(summary.values())[0]:.2f}'
+    text = ', '.join([f'{label}: {value:.2f}' for label, value in summary.items()])
+    return text
+
+
 def deltawl2deltaf(delta_wl, wavelength):
     """ deltawl2deltaf(delta_wl, wavelength):
     delta_wl is BW in wavelength units

gnpy/example-data/initial_spectrum1.json

@@ -0,0 +1,12 @@
+{
+      "spectrum":[
+            {
+            "f_min": 191.35e12,
+            "f_max": 195.1e12,
+            "baud_rate": 32e9,
+            "slot_width": 50e9,
+            "roll_off": 0.15,
+            "tx_osnr": 40
+            }
+      ]
+}

gnpy/example-data/initial_spectrum2.json

@@ -0,0 +1,23 @@
+{
+      "spectrum":[
+            {
+            "f_min": 191.4e12,
+            "f_max":193.1e12,
+            "baud_rate": 32e9,
+            "slot_width": 50e9,
+            "delta_pdb": 0,
+            "roll_off": 0.15,
+            "tx_osnr": 40,
+            "label": "mode_1"
+            },
+            {
+            "f_min": 193.1625e12,
+            "f_max":195e12,
+            "baud_rate": 64e9,
+            "slot_width": 75e9,
+            "roll_off": 0.15,
+            "tx_osnr": 40,
+            "label": "mode_2"
+            }
+      ]
+}

gnpy/tools/cli_examples.py

@@ -14,6 +14,7 @@ import sys
 from math import ceil
 from numpy import linspace, mean
 from pathlib import Path
+
 import gnpy.core.ansi_escapes as ansi_escapes
 from gnpy.core.elements import Transceiver, Fiber, RamanFiber
 from gnpy.core.equipment import trx_mode_params
@@ -26,8 +27,8 @@ from gnpy.topology.request import (ResultElement, jsontocsv, compute_path_dsjctn
                                    deduplicate_disjunctions, compute_path_with_disjunction,
                                    PathRequest, compute_constrained_path, propagate)
 from gnpy.topology.spectrum_assignment import build_oms_list, pth_assign_spectrum
-from gnpy.tools.json_io import load_equipment, load_network, load_json, load_requests, save_network, \
+from gnpy.tools.json_io import (load_equipment, load_network, load_json, load_requests, save_network,
-                               requests_from_json, disjunctions_from_json, save_json
+                                requests_from_json, disjunctions_from_json, save_json, load_initial_spectrum)
 from gnpy.tools.plots import plot_baseline, plot_results
 
 _logger = logging.getLogger(__name__)
@@ -118,6 +119,7 @@ def transmission_main_example(args=None):
     parser.add_argument('-pl', '--plot', action='store_true')
     parser.add_argument('-l', '--list-nodes', action='store_true', help='list all transceiver nodes')
     parser.add_argument('-po', '--power', default=0, help='channel ref power in dBm')
+    parser.add_argument('--spectrum', type=Path, help='user defined mixed rate spectrum JSON file')
     parser.add_argument('source', nargs='?', help='source node')
     parser.add_argument('destination', nargs='?', help='destination node')
 
@@ -194,12 +196,21 @@ def transmission_main_example(args=None):
     if args.power:
         trx_params['power'] = db2lin(float(args.power)) * 1e-3
     params.update(trx_params)
+    initial_spectrum = None
+    nb_channels = automatic_nch(trx_params['f_min'], trx_params['f_max'], trx_params['spacing'])
+    if args.spectrum:
+        initial_spectrum = load_initial_spectrum(args.spectrum)
+        nb_channels = len(initial_spectrum)
+        print('User input for spectrum used for propagation instead of SI')
+    params['nb_channel'] = nb_channels
     req = PathRequest(**params)
-
+    req.initial_spectrum = initial_spectrum
+    print(f'There are {nb_channels} channels propagating')
     power_mode = equipment['Span']['default'].power_mode
     print('\n'.join([f'Power mode is set to {power_mode}',
                      f'=> it can be modified in eqpt_config.json - Span']))
 
+    # Keep the reference channel for design: the one from SI, with full load same channels
     pref_ch_db = lin2db(req.power * 1e3)  # reference channel power / span (SL=20dB)
     pref_total_db = pref_ch_db + lin2db(req.nb_channel)  # reference total power / span (SL=20dB)
     try:
@@ -226,9 +237,13 @@ def transmission_main_example(args=None):
             power_range = list(linspace(p_start, p_stop, p_num))
         except TypeError:
             print('invalid power range definition in eqpt_config, should be power_range_db: [lower, upper, step]')
-
     for dp_db in power_range:
         req.power = db2lin(pref_ch_db + dp_db) * 1e-3
+        # if initial spectrum did not contain any power, now we need to use this one.
+        # note the initial power defines a differential wrt req.power so that if req.power is set to 2mW (3dBm)
+        # and initial spectrum was set to 0, this sets a initial per channel delta power to -3dB, so that
+        # whatever the equalization, -3 dB is applied on all channels (ie initial power in initial spectrum pre-empts
+        # "--power" option)
         if power_mode:
             print(f'\nPropagating with input power = {ansi_escapes.cyan}{lin2db(req.power*1e3):.2f} dBm{ansi_escapes.reset}:')
         else:
@@ -264,9 +279,9 @@ def transmission_main_example(args=None):
             ch_freq = final_carrier.frequency * 1e-12
             ch_power = lin2db(final_carrier.power.signal * 1e3)
             print(
-                '{:5}{:26.2f}{:26.2f}{:28.2f}{:28.2f}{:28.2f}' .format(
+                '{:5}{:26.5f}{:26.2f}{:28.2f}{:28.2f}{:28.2f}' .format(
                     final_carrier.channel_number, round(
-                        ch_freq, 2), round(
+                        ch_freq, 5), round(
                         ch_power, 2), round(
                         ch_osnr, 2), round(
                         ch_snr_nl, 2), round(

gnpy/tools/json_io.py

@@ -13,10 +13,13 @@ from logging import getLogger
 from pathlib import Path
 import json
 from collections import namedtuple
+from numpy import arange
+
 from gnpy.core import ansi_escapes, elements
 from gnpy.core.equipment import trx_mode_params
 from gnpy.core.exceptions import ConfigurationError, EquipmentConfigError, NetworkTopologyError, ServiceError
 from gnpy.core.science_utils import estimate_nf_model
+from gnpy.core.info import Carrier
 from gnpy.core.utils import automatic_nch, automatic_fmax, merge_amplifier_restrictions
 from gnpy.topology.request import PathRequest, Disjunction, compute_spectrum_slot_vs_bandwidth
 from gnpy.tools.convert import xls_to_json_data
@@ -91,7 +94,6 @@ class Span(_JsonThing):
 
 class Roadm(_JsonThing):
     default_values = {
-        'target_pch_out_db': -17,
         'add_drop_osnr': 100,
         'pmd': 0,
         'pdl': 0,
@@ -102,6 +104,20 @@ class Roadm(_JsonThing):
     }
 
     def __init__(self, **kwargs):
+        # If equalization is not defined in equipment, then raise an error.
+        # Only one type of equalization must be defined.
+        allowed_equalisations = ['target_pch_out_db', 'target_psd_out_mWperGHz', 'target_out_mWperSlotWidth']
+        requested_eq_mask = [eq in kwargs for eq in allowed_equalisations]
+        if sum(requested_eq_mask) > 1:
+            raise EquipmentConfigError('Only one equalization type should be set in ROADM, found: '
+                                       + ', '.join(eq for eq in allowed_equalisations if eq in kwargs))
+        if not any(requested_eq_mask):
+            raise EquipmentConfigError('No equalization type set in ROADM')
+
+        for key in allowed_equalisations:
+            if key in kwargs:
+                setattr(self, key, kwargs[key])
+                break
         self.update_attr(self.default_values, kwargs, 'Roadm')
 
 
@@ -249,11 +265,89 @@ def _automatic_spacing(baud_rate):
     return min((s[1] for s in spacing_list if s[0] > baud_rate), default=baud_rate * 1.2)
 
 
+def _spectrum_from_json(json_data):
+    """JSON_data is a list of spectrum partitions each with
+    {f_min, f_max, baud_rate, roll_off, delta_pdb, slot_width, tx_osnr, label}
+    Creates the per freq Carrier's dict.
+    f_min, f_max, baud_rate, slot_width and roll_off are mandatory
+    label, tx_osnr and delta_pdb are created if not present
+    label should be different for each partition
+    >>> json_data = {'spectrum': \
+        [{'f_min': 193.2e12, 'f_max': 193.4e12, 'slot_width': 50e9, 'baud_rate': 32e9, 'roll_off': 0.15, \
+            'delta_pdb': 1, 'tx_osnr': 45},\
+        {'f_min': 193.4625e12, 'f_max': 193.9875e12, 'slot_width': 75e9, 'baud_rate': 64e9, 'roll_off': 0.15},\
+        {'f_min': 194.075e12, 'f_max': 194.075e12, 'slot_width': 100e9, 'baud_rate': 90e9, 'roll_off': 0.15},\
+        {'f_min': 194.2e12, 'f_max': 194.35e12, 'slot_width': 50e9, 'baud_rate': 32e9, 'roll_off': 0.15}]}
+    >>> spectrum = _spectrum_from_json(json_data['spectrum'])
+    >>> for k, v in spectrum.items():
+    ...     print(f'{k}: {v}')
+    ...
+    193200000000000.0: Carrier(delta_pdb=1, baud_rate=32000000000.0, slot_width=50000000000.0, roll_off=0.15, tx_osnr=45, label='0-32.00G')
+    193250000000000.0: Carrier(delta_pdb=1, baud_rate=32000000000.0, slot_width=50000000000.0, roll_off=0.15, tx_osnr=45, label='0-32.00G')
+    193300000000000.0: Carrier(delta_pdb=1, baud_rate=32000000000.0, slot_width=50000000000.0, roll_off=0.15, tx_osnr=45, label='0-32.00G')
+    193350000000000.0: Carrier(delta_pdb=1, baud_rate=32000000000.0, slot_width=50000000000.0, roll_off=0.15, tx_osnr=45, label='0-32.00G')
+    193400000000000.0: Carrier(delta_pdb=1, baud_rate=32000000000.0, slot_width=50000000000.0, roll_off=0.15, tx_osnr=45, label='0-32.00G')
+    193462500000000.0: Carrier(delta_pdb=0, baud_rate=64000000000.0, slot_width=75000000000.0, roll_off=0.15, tx_osnr=40, label='1-64.00G')
+    193537500000000.0: Carrier(delta_pdb=0, baud_rate=64000000000.0, slot_width=75000000000.0, roll_off=0.15, tx_osnr=40, label='1-64.00G')
+    193612500000000.0: Carrier(delta_pdb=0, baud_rate=64000000000.0, slot_width=75000000000.0, roll_off=0.15, tx_osnr=40, label='1-64.00G')
+    193687500000000.0: Carrier(delta_pdb=0, baud_rate=64000000000.0, slot_width=75000000000.0, roll_off=0.15, tx_osnr=40, label='1-64.00G')
+    193762500000000.0: Carrier(delta_pdb=0, baud_rate=64000000000.0, slot_width=75000000000.0, roll_off=0.15, tx_osnr=40, label='1-64.00G')
+    193837500000000.0: Carrier(delta_pdb=0, baud_rate=64000000000.0, slot_width=75000000000.0, roll_off=0.15, tx_osnr=40, label='1-64.00G')
+    193912500000000.0: Carrier(delta_pdb=0, baud_rate=64000000000.0, slot_width=75000000000.0, roll_off=0.15, tx_osnr=40, label='1-64.00G')
+    193987500000000.0: Carrier(delta_pdb=0, baud_rate=64000000000.0, slot_width=75000000000.0, roll_off=0.15, tx_osnr=40, label='1-64.00G')
+    194075000000000.0: Carrier(delta_pdb=0, baud_rate=90000000000.0, slot_width=100000000000.0, roll_off=0.15, tx_osnr=40, label='2-90.00G')
+    194200000000000.0: Carrier(delta_pdb=0, baud_rate=32000000000.0, slot_width=50000000000.0, roll_off=0.15, tx_osnr=40, label='3-32.00G')
+    194250000000000.0: Carrier(delta_pdb=0, baud_rate=32000000000.0, slot_width=50000000000.0, roll_off=0.15, tx_osnr=40, label='3-32.00G')
+    194300000000000.0: Carrier(delta_pdb=0, baud_rate=32000000000.0, slot_width=50000000000.0, roll_off=0.15, tx_osnr=40, label='3-32.00G')
+    194350000000000.0: Carrier(delta_pdb=0, baud_rate=32000000000.0, slot_width=50000000000.0, roll_off=0.15, tx_osnr=40, label='3-32.00G')
+    """
+    spectrum = {}
+    json_data = sorted(json_data, key=lambda x: x['f_min'])
+    # min freq of occupation is f_min - slot_width/2 (numbering starts at 0)
+    previous_part_max_freq = 0.0
+    for index, part in enumerate(json_data):
+        # default delta_pdb is 0 dB
+        if 'delta_pdb' not in part:
+            part['delta_pdb'] = 0
+        # add a label to the partition for the printings
+        if 'label' not in part:
+            part['label'] = f'{index}-{part["baud_rate"] * 1e-9 :.2f}G'
+        # default tx_osnr is set to 40 dB
+        if 'tx_osnr' not in part:
+            part['tx_osnr'] = 40
+        # starting freq is exactly f_min to be consistent with utils.automatic_nch
+        # first partition min occupation is f_min - slot_width / 2 (central_frequency is f_min)
+        # supposes that carriers are centered on frequency
+        if previous_part_max_freq > (part['f_min'] - part['slot_width'] / 2):
+            # check that previous part last channel does not overlap on next part first channel
+            # max center of the part should be below part['f_max'] and aligned on the slot_width
+            msg = 'Not a valid initial spectrum definition:\nprevious spectrum last carrier max occupation ' +\
+                f'{previous_part_max_freq * 1e-12 :.5f}GHz ' +\
+                'overlaps on next spectrum first carrier occupation ' +\
+                f'{(part["f_min"] - part["slot_width"] / 2) * 1e-12 :.5f}GHz'
+            raise ValueError(msg)
+
+        max_range = ((part['f_max'] - part['f_min']) // part['slot_width'] + 1) * part['slot_width']
+        for current_freq in arange(part['f_min'],
+                                   part['f_min'] + max_range,
+                                   part['slot_width']):
+            spectrum[current_freq] = Carrier(delta_pdb=part['delta_pdb'], baud_rate=part['baud_rate'],
+                                             slot_width=part['slot_width'], roll_off=part['roll_off'],
+                                             tx_osnr=part['tx_osnr'], label=part['label'])
+        previous_part_max_freq = current_freq + part['slot_width'] / 2
+    return spectrum
+
+
 def load_equipment(filename):
     json_data = load_json(filename)
     return _equipment_from_json(json_data, filename)
 
 
+def load_initial_spectrum(filename):
+    json_data = load_json(filename)
+    return _spectrum_from_json(json_data['spectrum'])
+
+
 def _update_dual_stage(equipment):
     edfa_dict = equipment['Edfa']
     for edfa in edfa_dict.values():
@@ -384,9 +478,16 @@ def network_from_json(json_data, equipment):
             # well, there's no variety for the 'Fused' node type
             pass
         elif variety in equipment[typ]:
-            extra_params = equipment[typ][variety]
+            extra_params = equipment[typ][variety].__dict__
             temp = el_config.setdefault('params', {})
-            temp = merge_amplifier_restrictions(temp, extra_params.__dict__)
+            if typ == 'Roadm':
+                # if equalization is defined, remove default equalization from the extra_params
+                # If equalisation is not defined in the element config, then use the default one from equipment
+                # if more than one equalization was defined in element config, then raise an error
+                extra_params = merge_equalization(temp, extra_params)
+                if not extra_params:
+                    raise ConfigurationError(f'ROADM {el_config["uid"]}: invalid equalization settings')
+            temp = merge_amplifier_restrictions(temp, extra_params)
             el_config['params'] = temp
             el_config['type_variety'] = variety
         elif (typ in ['Fiber', 'RamanFiber']) or (typ == 'Edfa' and variety not in ['default', '']):
@@ -457,16 +558,16 @@ def requests_from_json(json_data, equipment):
     for req in json_data['path-request']:
         # init all params from request
         params = {}
-        params['request_id'] = req['request-id']
+        params['request_id'] = f'{req["request-id"]}'
         params['source'] = req['source']
         params['bidir'] = req['bidirectional']
         params['destination'] = req['destination']
         params['trx_type'] = req['path-constraints']['te-bandwidth']['trx_type']
-        params['trx_mode'] = req['path-constraints']['te-bandwidth']['trx_mode']
+        params['trx_mode'] = req['path-constraints']['te-bandwidth'].get('trx_mode', None)
         params['format'] = params['trx_mode']
         params['spacing'] = req['path-constraints']['te-bandwidth']['spacing']
         try:
-            nd_list = req['explicit-route-objects']['route-object-include-exclude']
+            nd_list = sorted(req['explicit-route-objects']['route-object-include-exclude'], key=lambda x: x['index'])
         except KeyError:
             nd_list = []
         params['nodes_list'] = [n['num-unnum-hop']['node-id'] for n in nd_list]
@@ -576,3 +677,42 @@ def convert_service_sheet(
     data = read_service_sheet(input_filename, eqpt, network, network_filename, bidir)
     save_json(data, output_filename)
     return data
+
+
+def find_equalisation(params, equalization_types):
+    """Find the equalization(s) defined in params. params can be a dict or a Roadm object.
+
+    >>> roadm = {'add_drop_osnr': 100, 'pmd': 1, 'pdl': 0.5,
+    ...     'restrictions': {'preamp_variety_list': ['a'], 'booster_variety_list': ['b']},
+    ...     'target_psd_out_mWperGHz': 4e-4}
+    >>> equalization_types = ['target_pch_out_db', 'target_psd_out_mWperGHz']
+    >>> find_equalisation(roadm, equalization_types)
+    {'target_pch_out_db': False, 'target_psd_out_mWperGHz': True}
+    """
+    equalization = {e: False for e in equalization_types}
+    for equ in equalization_types:
+        if equ in params:
+            equalization[equ] = True
+    return equalization
+
+
+def merge_equalization(params, extra_params):
+    """params contains ROADM element config and extra_params default values from equipment library.
+    If equalization is not defined in ROADM element use the one defined in equipment library.
+    Only one type of equalization must be defined: power (target_pch_out_db) or PSD (target_psd_out_mWperGHz)
+    or PSW (target_out_mWperSlotWidth)
+    params and extra_params are dict
+    """
+    equalization_types = ['target_pch_out_db', 'target_psd_out_mWperGHz', 'target_out_mWperSlotWidth']
+    roadm_equalizations = find_equalisation(params, equalization_types)
+    if sum(roadm_equalizations.values()) > 1:
+        # if ROADM config contains more than one equalization type then this is an error
+        return None
+    if sum(roadm_equalizations.values()) == 1:
+        # if ROADM config contains one equalization
+        # don't use the default equalization
+        return {k: v for k, v in extra_params.items() if k not in equalization_types}
+    if sum(roadm_equalizations.values()) == 0:
+        # If ROADM config doesn't contain any equalization type, keep the default one
+        return extra_params
+    return None

gnpy/topology/request.py

@@ -23,7 +23,7 @@ from networkx.utils import pairwise
 from numpy import mean, argmin
 from gnpy.core.elements import Transceiver, Roadm
 from gnpy.core.utils import lin2db
-from gnpy.core.info import create_input_spectral_information
+from gnpy.core.info import create_input_spectral_information, carriers_to_spectral_information, ReferenceCarrier
 from gnpy.core.exceptions import ServiceError, DisjunctionError
 import gnpy.core.ansi_escapes as ansi_escapes
 from copy import deepcopy
@@ -72,6 +72,7 @@ class PathRequest:
         if params.effective_freq_slot is not None:
             self.N = params.effective_freq_slot['N']
             self.M = params.effective_freq_slot['M']
+        self.initial_spectrum = None
 
     def __str__(self):
         return '\n\t'.join([f'{type(self).__name__} {self.request_id}',
@@ -339,21 +340,36 @@ def compute_constrained_path(network, req):
     return total_path
 
 
+def ref_carrier(equipment):
+    """Create a reference carier based SI information with the specified request's power:
+    req_power records the power in W that the user has defined for a given request
+    (which might be different from the one used for the design).
+    """
+    return ReferenceCarrier(baud_rate=equipment['SI']['default'].baud_rate,
+                            slot_width=equipment['SI']['default'].spacing)
+
+
 def propagate(path, req, equipment):
-    si = create_input_spectral_information(
+    """ propagates signals in each element according to initial spectrum set by user
-        req.f_min, req.f_max, req.roll_off, req.baud_rate,
+    """
-        req.power, req.spacing)
+    if req.initial_spectrum is not None:
+        si = carriers_to_spectral_information(initial_spectrum=req.initial_spectrum,
+                                              power=req.power, ref_carrier=ref_carrier(equipment))
+    else:
+        si = create_input_spectral_information(
+            f_min=req.f_min, f_max=req.f_max, roll_off=req.roll_off, baud_rate=req.baud_rate,
+            power=req.power, spacing=req.spacing, tx_osnr=req.tx_osnr, ref_carrier=ref_carrier(equipment))
     for i, el in enumerate(path):
         if isinstance(el, Roadm):
             si = el(si, degree=path[i+1].uid)
         else:
             si = el(si)
-    path[0].update_snr(req.tx_osnr)
+    path[0].update_snr(si.tx_osnr)
     path[0].calc_penalties(req.penalties)
     if any(isinstance(el, Roadm) for el in path):
-        path[-1].update_snr(req.tx_osnr, equipment['Roadm']['default'].add_drop_osnr)
+        path[-1].update_snr(si.tx_osnr, equipment['Roadm']['default'].add_drop_osnr)
     else:
-        path[-1].update_snr(req.tx_osnr)
+        path[-1].update_snr(si.tx_osnr)
     path[-1].calc_penalties(req.penalties)
     return si
 
@@ -374,13 +390,18 @@ def propagate_and_optimize_mode(path, req, equipment):
                                 float(this_mode['min_spacing']) <= req.spacing]
             modes_to_explore = sorted(modes_to_explore,
                                       key=lambda x: x['bit_rate'], reverse=True)
-            # print(modes_to_explore)
             # step2: computes propagation for each baudrate: stop and select the first that passes
-            # TODO: the case of roll of is not included: for now use SI one
+            # TODO: the case of roll off is not included: for now use SI one
             # TODO: if the loop in mode optimization does not have a feasible path, then bugs
-            spc_info = create_input_spectral_information(req.f_min, req.f_max,
+            if req.initial_spectrum is not None:
-                                                         equipment['SI']['default'].roll_off,
+                # this case is not yet handled: spectrum can not be defined for the path-request-run function
-                                                         this_br, req.power, req.spacing)
+                # and this function is only called in this case. so coming here should not be considered yet.
+                msg = f'Request: {req.request_id} contains a unexpected initial_spectrum.'
+                raise ServiceError(msg)
+            spc_info = create_input_spectral_information(f_min=req.f_min, f_max=req.f_max,
+                                                         roll_off=equipment['SI']['default'].roll_off,
+                                                         baud_rate=this_br, power=req.power, spacing=req.spacing,
+                                                         tx_osnr=req.tx_osnr, ref_carrier=ref_carrier(equipment))
             for i, el in enumerate(path):
                 if isinstance(el, Roadm):
                     spc_info = el(spc_info, degree=path[i+1].uid)
@@ -1142,6 +1163,7 @@ def compute_path_with_disjunction(network, equipment, pathreqlist, pathlist):
                         pathreq.OSNR = mode['OSNR']
                         pathreq.tx_osnr = mode['tx_osnr']
                         pathreq.bit_rate = mode['bit_rate']
+                        pathreq.penalties = mode['penalties']
                     # other blocking reason should not appear at this point
                 except AttributeError:
                     pathreq.baud_rate = mode['baud_rate']
@@ -1150,6 +1172,7 @@ def compute_path_with_disjunction(network, equipment, pathreqlist, pathlist):
                     pathreq.OSNR = mode['OSNR']
                     pathreq.tx_osnr = mode['tx_osnr']
                     pathreq.bit_rate = mode['bit_rate']
+                    pathreq.penalties = mode['penalties']
 
             # reversed path is needed for correct spectrum assignment
             reversed_path = find_reversed_path(pathlist[i])

gnpy/topology/spectrum_assignment.py

@@ -365,12 +365,6 @@ def spectrum_selection(pth, oms_list, requested_m, requested_n=None):
             candidate = (requested_n, requested_n - requested_m, requested_n + requested_m - 1)
         else:
             candidate = (None, None, None)
-        # print("coucou11")
-        # print(candidate)
-    # print(freq_availability[321:321+2*m])
-    # a = [i+321 for i in range(2*m)]
-    # print(a)
-    # print(candidate)
     return candidate, path_oms
 
 

requirements.txt

@@ -1,7 +1,6 @@
 matplotlib>=3.5.1,<4
 networkx>=2.6,<3
 numpy>=1.22.0,<2
-pandas>=1.3.5,<2
 pbr>=5.7.0,<6
 scipy>=1.7.3,<2
 xlrd>=1.2.0,<2

setup.cfg

@@ -3,7 +3,7 @@ name = gnpy
 description-file = README.md
 description-content-type = text/markdown; variant=GFM
 author = Telecom Infra Project
-author-email = jan.kundrat@telecominfraproject.com
+author-email = jkt@jankundrat.com
 license = BSD-3-Clause
 home-page = https://github.com/Telecominfraproject/oopt-gnpy
 project_urls =
@@ -22,6 +22,7 @@ classifier =
     Programming Language :: Python :: 3.8
     Programming Language :: Python :: 3.9
     Programming Language :: Python :: 3.10
+    Programming Language :: Python :: 3.11
     Programming Language :: Python :: Implementation :: CPython
     Topic :: Scientific/Engineering
     Topic :: Scientific/Engineering :: Physics

tests/data/default_edfa_config.json

@@ -196,101 +196,101 @@
         0.0
     ],
     "dgt": [
-        2.714526681131686,
+        1.0,
-        2.705443819238505,
-        2.6947834587664494,
-        2.6841217449620203,
-        2.6681935771243177,
-        2.6521732021128046,
-        2.630396440815385,
-        2.602860350286428,
-        2.5696460593920065,
-        2.5364027376452056,
-        2.499446286796604,
-        2.4587748041127506,
-        2.414398437185221,
-        2.3699990328716107,
-        2.322373696229342,
-        2.271520771371253,
-        2.2174389328192197,
-        2.16337565384239,
-        2.1183028432496016,
-        2.082225099873648,
-        2.055100772005235,
-        2.0279625371819305,
-        2.0008103857988204,
-        1.9736443063300082,
-        1.9482128147680253,
-        1.9245345552113182,
-        1.9026104247588487,
-        1.8806927939516411,
-        1.862235672444246,
-        1.847275503201129,
-        1.835814081380705,
-        1.824381436842932,
-        1.8139629377087627,
-        1.8045606557581335,
-        1.7961751115773796,
-        1.7877868031023945,
-        1.7793941781790852,
-        1.7709972329654864,
-        1.7625959636196327,
-        1.7541903672600494,
-        1.7459181197626403,
-        1.737780757913635,
-        1.7297783508684146,
-        1.7217732861435076,
-        1.7137640932265894,
-        1.7057507692361864,
-        1.6918150918099673,
-        1.6719047669939942,
-        1.6460167077689267,
-        1.6201194134191075,
-        1.5986915141218316,
-        1.5817353179379183,
-        1.569199764184379,
-        1.5566577309558969,
-        1.545374152761467,
-        1.5353620432989845,
-        1.5266220576235803,
-        1.5178910621476225,
-        1.5097346239790443,
-        1.502153039909686,
-        1.495145456062699,
-        1.488134243479226,
-        1.48111939735681,
-        1.474100442252211,
-        1.4670307626366115,
-        1.4599103316162523,
-        1.45273959485914,
-        1.445565137158368,
-        1.4340878115214444,
-        1.418273806730323,
-        1.3981208704326855,
-        1.3779439775587023,
-        1.3598972673004606,
-        1.3439818461440451,
-        1.3301807335621048,
-        1.316383926863083,
-        1.3040618749785347,
-        1.2932153453410835,
-        1.2838336236692311,
-        1.2744470198196236,
-        1.2650555289898042,
-        1.2556591482982988,
-        1.2428104897182262,
-        1.2264996957264114,
-        1.2067249615595257,
-        1.1869318618366975,
-        1.1672278304018044,
-        1.1476135933863398,
-        1.1280891949729075,
-        1.108555289615659,
-        1.0895983485572227,
-        1.0712204022764056,
-        1.0534217504465226,
-        1.0356155337864215,
         1.017807767853702,
-        1.0
+        1.0356155337864215,
+        1.0534217504465226,
+        1.0712204022764056,
+        1.0895983485572227,
+        1.108555289615659,
+        1.1280891949729075,
+        1.1476135933863398,
+        1.1672278304018044,
+        1.1869318618366975,
+        1.2067249615595257,
+        1.2264996957264114,
+        1.2428104897182262,
+        1.2556591482982988,
+        1.2650555289898042,
+        1.2744470198196236,
+        1.2838336236692311,
+        1.2932153453410835,
+        1.3040618749785347,
+        1.316383926863083,
+        1.3301807335621048,
+        1.3439818461440451,
+        1.3598972673004606,
+        1.3779439775587023,
+        1.3981208704326855,
+        1.418273806730323,
+        1.4340878115214444,
+        1.445565137158368,
+        1.45273959485914,
+        1.4599103316162523,
+        1.4670307626366115,
+        1.474100442252211,
+        1.48111939735681,
+        1.488134243479226,
+        1.495145456062699,
+        1.502153039909686,
+        1.5097346239790443,
+        1.5178910621476225,
+        1.5266220576235803,
+        1.5353620432989845,
+        1.545374152761467,
+        1.5566577309558969,
+        1.569199764184379,
+        1.5817353179379183,
+        1.5986915141218316,
+        1.6201194134191075,
+        1.6460167077689267,
+        1.6719047669939942,
+        1.6918150918099673,
+        1.7057507692361864,
+        1.7137640932265894,
+        1.7217732861435076,
+        1.7297783508684146,
+        1.737780757913635,
+        1.7459181197626403,
+        1.7541903672600494,
+        1.7625959636196327,
+        1.7709972329654864,
+        1.7793941781790852,
+        1.7877868031023945,
+        1.7961751115773796,
+        1.8045606557581335,
+        1.8139629377087627,
+        1.824381436842932,
+        1.835814081380705,
+        1.847275503201129,
+        1.862235672444246,
+        1.8806927939516411,
+        1.9026104247588487,
+        1.9245345552113182,
+        1.9482128147680253,
+        1.9736443063300082,
+        2.0008103857988204,
+        2.0279625371819305,
+        2.055100772005235,
+        2.082225099873648,
+        2.1183028432496016,
+        2.16337565384239,
+        2.2174389328192197,
+        2.271520771371253,
+        2.322373696229342,
+        2.3699990328716107,
+        2.414398437185221,
+        2.4587748041127506,
+        2.499446286796604,
+        2.5364027376452056,
+        2.5696460593920065,
+        2.602860350286428,
+        2.630396440815385,
+        2.6521732021128046,
+        2.6681935771243177,
+        2.6841217449620203,
+        2.6947834587664494,
+        2.705443819238505,
+        2.714526681131686
     ]
 }

tests/data/testTopology_response.json

@@ -1258,7 +1258,7 @@
           },
           {
             "metric-type": "SNR-0.1nm",
-            "accumulative-value": 28.77
+            "accumulative-value": 28.78
           },
           {
             "metric-type": "OSNR-bandwidth",

tests/data/testTopology_response_expected.csv

@@ -3,5 +3,5 @@ response-id,source,destination,path_bandwidth,Pass?,nb of tsp pairs,total cost,t
 1,trx Brest_KLA,trx Vannes_KBE,10.0,True,1,1,Voyager,mode 1,22.65,22.11,18.03,32.0,1.0,trx Brest_KLA | roadm Brest_KLA | east edfa in Brest_KLA to Morlaix | fiber (Brest_KLA → Morlaix)-F060 | east fused spans in Morlaix | fiber (Morlaix → Lannion_CAS)-F059 | west edfa in Lannion_CAS to Morlaix | roadm Lannion_CAS | east edfa in Lannion_CAS to Corlay | fiber (Lannion_CAS → Corlay)-F061 | west fused spans in Corlay | fiber (Corlay → Loudeac)-F010 | west fused spans in Loudeac | fiber (Loudeac → Lorient_KMA)-F054 | west edfa in Lorient_KMA to Loudeac | roadm Lorient_KMA | east edfa in Lorient_KMA to Vannes_KBE | fiber (Lorient_KMA → Vannes_KBE)-F055 | west edfa in Vannes_KBE to Lorient_KMA | roadm Vannes_KBE | trx Vannes_KBE,"-276, 4",,,
 3,trx Lannion_CAS,trx Rennes_STA,60.0,True,1,1,vendorA_trx-type1,mode 1,28.29,25.85,21.77,32.0,1.0,trx Lannion_CAS | roadm Lannion_CAS | east edfa in Lannion_CAS to Stbrieuc | fiber (Lannion_CAS → Stbrieuc)-F056 | east edfa in Stbrieuc to Rennes_STA | fiber (Stbrieuc → Rennes_STA)-F057 | west edfa in Rennes_STA to Stbrieuc | roadm Rennes_STA | trx Rennes_STA,"-284, 4",,,
 4,trx Rennes_STA,trx Lannion_CAS,150.0,True,1,1,vendorA_trx-type1,mode 2,22.27,22.15,15.05,64.0,0.0,trx Rennes_STA | roadm Rennes_STA | east edfa in Rennes_STA to Ploermel | fiber (Rennes_STA → Ploermel)- | east edfa in Ploermel to Vannes_KBE | fiber (Ploermel → Vannes_KBE)- | west edfa in Vannes_KBE to Ploermel | roadm Vannes_KBE | east edfa in Vannes_KBE to Lorient_KMA | fiber (Vannes_KBE → Lorient_KMA)-F055 | west edfa in Lorient_KMA to Vannes_KBE | roadm Lorient_KMA | east edfa in Lorient_KMA to Loudeac | fiber (Lorient_KMA → Loudeac)-F054 | east fused spans in Loudeac | fiber (Loudeac → Corlay)-F010 | east fused spans in Corlay | fiber (Corlay → Lannion_CAS)-F061 | west edfa in Lannion_CAS to Corlay | roadm Lannion_CAS | trx Lannion_CAS,"-266, 6",,,
-5,trx Rennes_STA,trx Lannion_CAS,20.0,True,1,1,vendorA_trx-type1,mode 2,30.79,28.77,21.68,64.0,3.0,trx Rennes_STA | roadm Rennes_STA | east edfa in Rennes_STA to Stbrieuc | fiber (Rennes_STA → Stbrieuc)-F057 | west edfa in Stbrieuc to Rennes_STA | fiber (Stbrieuc → Lannion_CAS)-F056 | west edfa in Lannion_CAS to Stbrieuc | roadm Lannion_CAS | trx Lannion_CAS,"-274, 6",,,
+5,trx Rennes_STA,trx Lannion_CAS,20.0,True,1,1,vendorA_trx-type1,mode 2,30.79,28.78,21.68,64.0,3.0,trx Rennes_STA | roadm Rennes_STA | east edfa in Rennes_STA to Stbrieuc | fiber (Rennes_STA → Stbrieuc)-F057 | west edfa in Stbrieuc to Rennes_STA | fiber (Stbrieuc → Lannion_CAS)-F056 | west edfa in Lannion_CAS to Stbrieuc | roadm Lannion_CAS | trx Lannion_CAS,"-274, 6",,,
 6,,,,NO_PATH,,,,,,,,,,,,,,

tests/data/test_long_network.json

@@ -0,0 +1,809 @@
+{
+    "network_name": "Example Network - long path",
+    "elements": [{
+            "uid": "Site_A",
+            "type": "Transceiver",
+            "metadata": {
+                "location": {
+                    "city": "Site A",
+                    "region": "",
+                    "latitude": 0,
+                    "longitude": 0
+                }
+            }
+        },
+        {
+          "uid": "roadm Site A",
+          "metadata": {
+            "location": {
+              "city": "Site A",
+              "region": "RLD",
+              "latitude": 0.0,
+              "longitude": 0.0
+            }
+          },
+          "type": "Roadm"
+        },
+        {
+            "uid": "booster A",
+            "type": "Edfa",
+            "type_variety": "std_medium_gain",
+            "operational": {
+                "gain_target": 16,
+                "tilt_target": 0
+            },
+            "metadata": {
+                "location": {
+                    "region": "",
+                    "latitude": 0,
+                    "longitude": 0
+                }
+            }
+        },
+        {
+            "uid": "Span1",
+            "type": "Fiber",
+            "type_variety": "SSMF",
+            "params": {
+                "length": 80,
+                "loss_coef": 0.2,
+                "length_units": "km"
+                },
+            "metadata": {
+                "location": {
+                    "region": "",
+                    "latitude": 1,
+                    "longitude": 0
+                }
+            }
+        },
+        {
+            "uid": "Edfa1",
+            "type": "Edfa",
+            "type_variety": "test",
+            "operational": {
+                "gain_target": 16,
+                "tilt_target": 0
+            },
+            "metadata": {
+                "location": {
+                    "region": "",
+                    "latitude": 2,
+                    "longitude": 0
+                }
+            }
+        },
+        {
+            "uid": "Span2",
+            "type": "Fiber",
+            "type_variety": "SSMF",
+            "params": {
+                "length": 80,
+                "loss_coef": 0.2,
+                "length_units": "km"
+                },
+            "metadata": {
+                "location": {
+                    "region": "",
+                    "latitude": 1,
+                    "longitude": 0
+                }
+            }
+        },
+        {
+            "uid": "Edfa2",
+            "type": "Edfa",
+            "type_variety": "test_fixed_gain",
+            "operational": {
+                "gain_target": 16,
+                "tilt_target": 0
+            },
+            "metadata": {
+                "location": {
+                    "region": "",
+                    "latitude": 2,
+                    "longitude": 0
+                }
+            }
+        },
+        {
+            "uid": "Span3",
+            "type": "Fiber",
+            "type_variety": "SSMF",
+            "params": {
+                "length": 80,
+                "loss_coef": 0.2,
+                "length_units": "km"
+                },
+            "metadata": {
+                "location": {
+                    "region": "",
+                    "latitude": 1,
+                    "longitude": 0
+                }
+            }
+        },
+        {
+            "uid": "Edfa3",
+            "type": "Edfa",
+            "type_variety": "test",
+            "operational": {
+                "gain_target": 16,
+                "tilt_target": 0
+            },
+            "metadata": {
+                "location": {
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+                }
+            }
+        },
+        {
+            "uid": "Span4",
+            "type": "Fiber",
+            "type_variety": "SSMF",
+            "params": {
+                "length": 80,
+                "loss_coef": 0.2,
+                "length_units": "km"
+                },
+            "metadata": {
+                "location": {
+                    "region": "",
+                    "latitude": 1,
+                    "longitude": 0
+                }
+            }
+        },
+        {
+            "uid": "Edfa4",
+            "type": "Edfa",
+            "type_variety": "test_fixed_gain",
+            "operational": {
+                "gain_target": 16,
+                "tilt_target": 0
+            },
+            "metadata": {
+                "location": {
+                    "region": "",
+                    "latitude": 2,
+                    "longitude": 0
+                }
+            }
+        },
+        {
+            "uid": "Span5",
+            "type": "Fiber",
+            "type_variety": "SSMF",
+            "params": {
+                "length": 80,
+                "loss_coef": 0.2,
+                "length_units": "km"
+                },
+            "metadata": {
+                "location": {
+                    "region": "",
+                    "latitude": 1,
+                    "longitude": 0
+                }
+            }
+        },
+        {
+            "uid": "Edfa5",
+            "type": "Edfa",
+            "type_variety": "test",
+            "operational": {
+                "gain_target": 16,
+                "tilt_target": 0
+            },
+            "metadata": {
+                "location": {
+                    "region": "",
+                    "latitude": 2,
+                    "longitude": 0
+                }
+            }
+        },
+        {
+          "uid": "roadm Site C",
+          "metadata": {
+            "location": {
+              "city": "Site A",
+              "region": "RLD",
+              "latitude": 0.0,
+              "longitude": 0.0
+            }
+          },
+          "type": "Roadm"
+        },
+        {
+            "uid": "booster C",
+            "type": "Edfa",
+            "type_variety": "std_medium_gain",
+            "operational": {
+                "gain_target": 16,
+                "tilt_target": 0
+            },
+            "metadata": {
+                "location": {
+                    "region": "",
+                    "latitude": 0,
+                    "longitude": 0
+                }
+            }
+        },
+        {
+            "uid": "Span6",
+            "type": "Fiber",
+            "type_variety": "SSMF",
+            "params": {
+                "length": 80,
+                "loss_coef": 0.2,
+                "length_units": "km"
+                },
+            "metadata": {
+                "location": {
+                    "region": "",
+                    "latitude": 1,
+                    "longitude": 0
+                }
+            }
+        },
+        {
+            "uid": "Edfa6",
+            "type": "Edfa",
+            "type_variety": "test_fixed_gain",
+            "operational": {
+                "gain_target": 16,
+                "tilt_target": 0
+            },
+            "metadata": {
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+                    "region": "",
+                    "latitude": 2,
+                    "longitude": 0
+                }
+            }
+        },
+        {
+            "uid": "Span7",
+            "type": "Fiber",
+            "type_variety": "SSMF",
+            "params": {
+                "length": 80,
+                "loss_coef": 0.2,
+                "length_units": "km"
+                },
+            "metadata": {
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+                    "longitude": 0
+                }
+            }
+        },
+        {
+            "uid": "Edfa7",
+            "type": "Edfa",
+            "type_variety": "test",
+            "operational": {
+                "gain_target": 16,
+                "tilt_target": 0
+            },
+            "metadata": {
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+                    "latitude": 2,
+                    "longitude": 0
+                }
+            }
+        },
+        {
+            "uid": "Span8",
+            "type": "Fiber",
+            "type_variety": "SSMF",
+            "params": {
+                "length": 80,
+                "loss_coef": 0.2,
+                "length_units": "km"
+                },
+            "metadata": {
+                "location": {
+                    "region": "",
+                    "latitude": 1,
+                    "longitude": 0
+                }
+            }
+        },
+        {
+            "uid": "Edfa8",
+            "type": "Edfa",
+            "type_variety": "test_fixed_gain",
+            "operational": {
+                "gain_target": 16,
+                "tilt_target": 0
+            },
+            "metadata": {
+                "location": {
+                    "region": "",
+                    "latitude": 2,
+                    "longitude": 0
+                }
+            }
+        },
+        {
+            "uid": "Span9",
+            "type": "Fiber",
+            "type_variety": "SSMF",
+            "params": {
+                "length": 80,
+                "loss_coef": 0.2,
+                "length_units": "km"
+                },
+            "metadata": {
+                "location": {
+                    "region": "",
+                    "latitude": 1,
+                    "longitude": 0
+                }
+            }
+        },
+        {
+            "uid": "Edfa9",
+            "type": "Edfa",
+            "type_variety": "test",
+            "operational": {
+                "gain_target": 16,
+                "tilt_target": 0
+            },
+            "metadata": {
+                "location": {
+                    "region": "",
+                    "latitude": 2,
+                    "longitude": 0
+                }
+            }
+        },
+        {
+            "uid": "Span10",
+            "type": "Fiber",
+            "type_variety": "SSMF",
+            "params": {
+                "length": 80,
+                "loss_coef": 0.2,
+                "length_units": "km"
+                },
+            "metadata": {
+                "location": {
+                    "region": "",
+                    "latitude": 1,
+                    "longitude": 0
+                }
+            }
+        },
+        {
+            "uid": "Edfa10",
+            "type": "Edfa",
+            "type_variety": "test_fixed_gain",
+            "operational": {
+                "gain_target": 16,
+                "tilt_target": 0
+            },
+            "metadata": {
+                "location": {
+                    "region": "",
+                    "latitude": 2,
+                    "longitude": 0
+                }
+            }
+        },
+        {
+          "uid": "roadm Site D",
+          "metadata": {
+            "location": {
+              "city": "Site A",
+              "region": "RLD",
+              "latitude": 0.0,
+              "longitude": 0.0
+            }
+          },
+          "type": "Roadm"
+        },
+        {
+            "uid": "booster D",
+            "type": "Edfa",
+            "type_variety": "std_medium_gain",
+            "operational": {
+                "gain_target": 16,
+                "tilt_target": 0
+            },
+            "metadata": {
+                "location": {
+                    "region": "",
+                    "latitude": 0,
+                    "longitude": 0
+                }
+            }
+        },
+        {
+            "uid": "Span11",
+            "type": "Fiber",
+            "type_variety": "SSMF",
+            "params": {
+                "length": 80,
+                "loss_coef": 0.2,
+                "length_units": "km"
+                },
+            "metadata": {
+                "location": {
+                    "region": "",
+                    "latitude": 1,
+                    "longitude": 0
+                }
+            }
+        },
+        {
+            "uid": "Edfa11",
+            "type": "Edfa",
+            "type_variety": "test",
+            "operational": {
+                "gain_target": 16,
+                "tilt_target": 0
+            },
+            "metadata": {
+                "location": {
+                    "region": "",
+                    "latitude": 2,
+                    "longitude": 0
+                }
+            }
+        },
+        {
+            "uid": "Span12",
+            "type": "Fiber",
+            "type_variety": "SSMF",
+            "params": {
+                "length": 80,
+                "loss_coef": 0.2,
+                "length_units": "km"
+                },
+            "metadata": {
+                "location": {
+                    "region": "",
+                    "latitude": 1,
+                    "longitude": 0
+                }
+            }
+        },
+        {
+            "uid": "Edfa12",
+            "type": "Edfa",
+            "type_variety": "test_fixed_gain",
+            "operational": {
+                "gain_target": 16,
+                "tilt_target": 0
+            },
+            "metadata": {
+                "location": {
+                    "region": "",
+                    "latitude": 2,
+                    "longitude": 0
+                }
+            }
+        },
+        {
+          "uid": "roadm Site E",
+          "metadata": {
+            "location": {
+              "city": "Site A",
+              "region": "RLD",
+              "latitude": 0.0,
+              "longitude": 0.0
+            }
+          },
+          "type": "Roadm"
+        },
+        {
+            "uid": "booster E",
+            "type": "Edfa",
+            "type_variety": "std_medium_gain",
+            "operational": {
+                "gain_target": 16,
+                "tilt_target": 0
+            },
+            "metadata": {
+                "location": {
+                    "region": "",
+                    "latitude": 0,
+                    "longitude": 0
+                }
+            }
+        },
+        {
+            "uid": "Span13",
+            "type": "Fiber",
+            "type_variety": "SSMF",
+            "params": {
+                "length": 80,
+                "loss_coef": 0.2,
+                "length_units": "km"
+                },
+            "metadata": {
+                "location": {
+                    "region": "",
+                    "latitude": 1,
+                    "longitude": 0
+                }
+            }
+        },
+        {
+            "uid": "Edfa13",
+            "type": "Edfa",
+            "type_variety": "test",
+            "operational": {
+                "gain_target": 16,
+                "tilt_target": 0
+            },
+            "metadata": {
+                "location": {
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+                    "latitude": 2,
+                    "longitude": 0
+                }
+            }
+        },
+        {
+            "uid": "Span14",
+            "type": "Fiber",
+            "type_variety": "SSMF",
+            "params": {
+                "length": 80,
+                "loss_coef": 0.2,
+                "length_units": "km"
+                },
+            "metadata": {
+                "location": {
+                    "region": "",
+                    "latitude": 1,
+                    "longitude": 0
+                }
+            }
+        },
+        {
+            "uid": "Edfa14",
+            "type": "Edfa",
+            "type_variety": "test_fixed_gain",
+            "operational": {
+                "gain_target": 16,
+                "tilt_target": 0
+            },
+            "metadata": {
+                "location": {
+                    "region": "",
+                    "latitude": 2,
+                    "longitude": 0
+                }
+            }
+        },
+        {
+            "uid": "Span15",
+            "type": "Fiber",
+            "type_variety": "SSMF",
+            "params": {
+                "length": 80,
+                "loss_coef": 0.2,
+                "length_units": "km"
+                },
+            "metadata": {
+                "location": {
+                    "region": "",
+                    "latitude": 1,
+                    "longitude": 0
+                }
+            }
+        },
+        {
+            "uid": "Edfa15",
+            "type": "Edfa",
+            "type_variety": "test",
+            "operational": {
+                "gain_target": 16,
+                "tilt_target": 0
+            },
+            "metadata": {
+                "location": {
+                    "region": "",
+                    "latitude": 2,
+                    "longitude": 0
+                }
+            }
+        },
+        {
+          "uid": "roadm Site B",
+          "metadata": {
+            "location": {
+              "city": "Site B",
+              "region": "RLD",
+              "latitude": 0.0,
+              "longitude": 0.0
+            }
+          },
+          "type": "Roadm"
+        },
+        {
+            "uid": "Site_B",
+            "type": "Transceiver",
+            "metadata": {
+                "location": {
+                    "city": "Site B",
+                    "region": "",
+                    "latitude": 3,
+                    "longitude": 0
+                }
+            }
+        }
+
+    ],
+    "connections": [{
+            "from_node": "Site_A",
+            "to_node": "roadm Site A"
+        },
+        {
+            "from_node": "roadm Site A",
+            "to_node": "booster A"
+        },
+        {
+            "from_node": "booster A",
+            "to_node": "Span1"
+        },
+        {
+            "from_node": "Span1",
+            "to_node": "Edfa1"
+        },
+        {
+            "from_node": "Edfa1",
+            "to_node": "Span2"
+        },
+        {
+            "from_node": "Span2",
+            "to_node": "Edfa2"
+        },       
+        {
+            "from_node": "Edfa2",
+            "to_node": "Span3"
+        },
+        {
+            "from_node": "Span3",
+            "to_node": "Edfa3"
+        },       
+        {
+            "from_node": "Edfa3",
+            "to_node": "Span4"
+        },
+        {
+            "from_node": "Span4",
+            "to_node": "Edfa4"
+        },       
+        {
+            "from_node": "Edfa4",
+            "to_node": "Span5"
+        },
+        {
+            "from_node": "Span5",
+            "to_node": "Edfa5"
+        },       
+        {
+            "from_node": "Edfa5",
+            "to_node": "roadm Site C"
+        },
+        {
+            "from_node": "roadm Site C",
+            "to_node": "booster C"
+        },
+        {
+            "from_node": "booster C",
+            "to_node": "Span6"
+        },
+        {
+            "from_node": "Span6",
+            "to_node": "Edfa6"
+        },
+        {
+            "from_node": "Edfa6",
+            "to_node": "Span7"
+        },
+        {
+            "from_node": "Span7",
+            "to_node": "Edfa7"
+        },       
+        {
+            "from_node": "Edfa7",
+            "to_node": "Span8"
+        },
+        {
+            "from_node": "Span8",
+            "to_node": "Edfa8"
+        },       
+        {
+            "from_node": "Edfa8",
+            "to_node": "Span9"
+        },
+        {
+            "from_node": "Span9",
+            "to_node": "Edfa9"
+        },       
+        {
+            "from_node": "Edfa9",
+            "to_node": "Span10"
+        },
+        {
+            "from_node": "Span10",
+            "to_node": "Edfa10"
+        },       
+        {
+            "from_node": "Edfa10",
+            "to_node": "roadm Site D"
+        },
+        {
+            "from_node": "roadm Site D",
+            "to_node": "booster D"
+        },
+        {
+            "from_node": "booster D",
+            "to_node": "Span11"
+        },
+        {
+            "from_node": "Span11",
+            "to_node": "Edfa11"
+        },
+        {
+            "from_node": "Edfa11",
+            "to_node": "Span12"
+        },
+        {
+            "from_node": "Span12",
+            "to_node": "Edfa12"
+        },       
+        {
+            "from_node": "Edfa12",
+            "to_node": "roadm Site E"
+        },
+        {
+            "from_node": "roadm Site E",
+            "to_node": "booster E"
+        },
+        {
+            "from_node": "booster E",
+            "to_node": "Span13"
+        },
+        {
+            "from_node": "Span13",
+            "to_node": "Edfa13"
+        },       
+        {
+            "from_node": "Edfa13",
+            "to_node": "Span14"
+        },
+        {
+            "from_node": "Span14",
+            "to_node": "Edfa14"
+        },       
+        {
+            "from_node": "Edfa14",
+            "to_node": "Span15"
+        },
+        {
+            "from_node": "Span15",
+            "to_node": "Edfa15"
+        },       
+        {
+            "from_node": "Edfa15",
+            "to_node": "roadm Site B"
+        },
+        {
+            "from_node": "roadm Site B",
+            "to_node": "Site_B"
+        }
+    ]
+}

tests/data/test_lumped_losses_raman_fiber.csv

@@ -1,98 +1,98 @@
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tests/invocation/openroadm-v4-Stockholm-Gothenburg

@@ -16,8 +16,9 @@ Transceiver trx_Stockholm
   PMD (ps):                  0.00
   PDL (dB):                  0.00
 Roadm roadm_Stockholm
-  effective loss (dB):  22.00
+  effective loss (dB):     22.00
-  pch out (dBm):        -20.00
+  reference pch out (dBm): -20.00
+  actual pch out (dBm):    -20.00
 Edfa Edfa_booster_roadm_Stockholm_to_fiber (Stockholm → Norrköping)_(1/2)
   type_variety:           openroadm_mw_mw_booster
   effective gain(dB):     22.00
@@ -30,6 +31,7 @@ Edfa Edfa_booster_roadm_Stockholm_to_fiber (Stockholm → Norrköping)_(1/2)
   Delta_P (dB):           0.00
   target pch (dBm):       2.00
   effective pch (dBm):    2.00
+  actual pch out (dBm):   2.00
   output VOA (dB):        0.00
 Fiber          fiber (Stockholm → Norrköping)_(1/2)
   type_variety:                SSMF
@@ -38,7 +40,8 @@ Fiber          fiber (Stockholm → Norrköping)_(1/2)
   total loss (dB):             16.33
   (includes conn loss (dB) in: 0.00 out: 0.00)
   (conn loss out includes EOL margin defined in eqpt_config.json)
-  pch out (dBm): -14.33
+  reference pch out (dBm):     -14.33
+  actual pch out (dBm):        -14.31
 Edfa Edfa_fiber (Stockholm → Norrköping)_(1/2)
   type_variety:           openroadm_ila_low_noise
   effective gain(dB):     16.33
@@ -51,6 +54,7 @@ Edfa Edfa_fiber (Stockholm → Norrköping)_(1/2)
   Delta_P (dB):           0.00
   target pch (dBm):       2.00
   effective pch (dBm):    2.00
+  actual pch out (dBm):   2.02
   output VOA (dB):        0.00
 Fiber          fiber (Stockholm → Norrköping)_(2/2)
   type_variety:                SSMF
@@ -59,7 +63,8 @@ Fiber          fiber (Stockholm → Norrköping)_(2/2)
   total loss (dB):             16.33
   (includes conn loss (dB) in: 0.00 out: 0.00)
   (conn loss out includes EOL margin defined in eqpt_config.json)
-  pch out (dBm): -14.33
+  reference pch out (dBm):     -14.33
+  actual pch out (dBm):        -14.30
 Edfa Edfa_preamp_roadm_Norrköping_from_fiber (Stockholm → Norrköping)_(2/2)
   type_variety:           openroadm_mw_mw_preamp
   effective gain(dB):     16.33
@@ -72,10 +77,12 @@ Edfa Edfa_preamp_roadm_Norrköping_from_fiber (Stockholm → Norrköping)_(2/2)
   Delta_P (dB):           0.00
   target pch (dBm):       2.00
   effective pch (dBm):    2.00
+  actual pch out (dBm):   2.04
   output VOA (dB):        0.00
 Roadm roadm_Norrköping
-  effective loss (dB):  22.00
+  effective loss (dB):     22.00
-  pch out (dBm):        -20.00
+  reference pch out (dBm): -20.00
+  actual pch out (dBm):    -20.00
 Edfa Edfa_booster_roadm_Norrköping_to_fiber (Norrköping → Linköping)
   type_variety:           openroadm_mw_mw_booster
   effective gain(dB):     22.00
@@ -88,6 +95,7 @@ Edfa Edfa_booster_roadm_Norrköping_to_fiber (Norrköping → Linköping)
   Delta_P (dB):           0.00
   target pch (dBm):       2.00
   effective pch (dBm):    2.00
+  actual pch out (dBm):   2.00
   output VOA (dB):        0.00
 Fiber          fiber (Norrköping → Linköping)
   type_variety:                SSMF
@@ -96,7 +104,8 @@ Fiber          fiber (Norrköping → Linköping)
   total loss (dB):             11.00
   (includes conn loss (dB) in: 0.00 out: 0.00)
   (conn loss out includes EOL margin defined in eqpt_config.json)
-  pch out (dBm): -9.00
+  reference pch out (dBm):     -9.00
+  actual pch out (dBm):        -9.00
 Edfa Edfa_preamp_roadm_Linköping_from_fiber (Norrköping → Linköping)
   type_variety:           openroadm_mw_mw_preamp
   effective gain(dB):     11.00
@@ -109,10 +118,12 @@ Edfa Edfa_preamp_roadm_Linköping_from_fiber (Norrköping → Linköping)
   Delta_P (dB):           0.00
   target pch (dBm):       2.00
   effective pch (dBm):    2.00
+  actual pch out (dBm):   2.01
   output VOA (dB):        0.00
 Roadm roadm_Linköping
-  effective loss (dB):  22.00
+  effective loss (dB):     22.00
-  pch out (dBm):        -20.00
+  reference pch out (dBm): -20.00
+  actual pch out (dBm):    -20.00
 Edfa Edfa_booster_roadm_Linköping_to_fiber (Linköping → Jönköping)
   type_variety:           openroadm_mw_mw_booster
   effective gain(dB):     22.00
@@ -125,6 +136,7 @@ Edfa Edfa_booster_roadm_Linköping_to_fiber (Linköping → Jönköping)
   Delta_P (dB):           0.00
   target pch (dBm):       2.00
   effective pch (dBm):    2.00
+  actual pch out (dBm):   2.00
   output VOA (dB):        0.00
 Fiber          fiber (Linköping → Jönköping)
   type_variety:                SSMF
@@ -133,7 +145,8 @@ Fiber          fiber (Linköping → Jönköping)
   total loss (dB):             26.80
   (includes conn loss (dB) in: 0.00 out: 0.00)
   (conn loss out includes EOL margin defined in eqpt_config.json)
-  pch out (dBm): -24.80
+  reference pch out (dBm):     -24.80
+  actual pch out (dBm):        -24.79
 Edfa Edfa_preamp_roadm_Jönköping_from_fiber (Linköping → Jönköping)
   type_variety:           openroadm_mw_mw_preamp
   effective gain(dB):     26.80
@@ -146,10 +159,12 @@ Edfa Edfa_preamp_roadm_Jönköping_from_fiber (Linköping → Jönköping)
   Delta_P (dB):           0.00
   target pch (dBm):       2.00
   effective pch (dBm):    2.00
+  actual pch out (dBm):   2.04
   output VOA (dB):        0.00
 Roadm roadm_Jönköping
-  effective loss (dB):  22.00
+  effective loss (dB):     22.00
-  pch out (dBm):        -20.00
+  reference pch out (dBm): -20.00
+  actual pch out (dBm):    -20.00
 Edfa Edfa_booster_roadm_Jönköping_to_fiber (Jönköping → Borås)
   type_variety:           openroadm_mw_mw_booster
   effective gain(dB):     22.00
@@ -162,6 +177,7 @@ Edfa Edfa_booster_roadm_Jönköping_to_fiber (Jönköping → Borås)
   Delta_P (dB):           0.00
   target pch (dBm):       2.00
   effective pch (dBm):    2.00
+  actual pch out (dBm):   2.00
   output VOA (dB):        0.00
 Fiber          fiber (Jönköping → Borås)
   type_variety:                SSMF
@@ -170,7 +186,8 @@ Fiber          fiber (Jönköping → Borås)
   total loss (dB):             17.82
   (includes conn loss (dB) in: 0.00 out: 0.00)
   (conn loss out includes EOL margin defined in eqpt_config.json)
-  pch out (dBm): -15.82
+  reference pch out (dBm):     -15.82
+  actual pch out (dBm):        -15.81
 Edfa Edfa_preamp_roadm_Borås_from_fiber (Jönköping → Borås)
   type_variety:           openroadm_mw_mw_preamp
   effective gain(dB):     17.82
@@ -183,10 +200,12 @@ Edfa Edfa_preamp_roadm_Borås_from_fiber (Jönköping → Borås)
   Delta_P (dB):           0.00
   target pch (dBm):       2.00
   effective pch (dBm):    2.00
+  actual pch out (dBm):   2.02
   output VOA (dB):        0.00
 Roadm roadm_Borås
-  effective loss (dB):  22.00
+  effective loss (dB):     22.00
-  pch out (dBm):        -20.00
+  reference pch out (dBm): -20.00
+  actual pch out (dBm):    -20.00
 Edfa Edfa_booster_roadm_Borås_to_fiber (Borås → Gothenburg)
   type_variety:           openroadm_mw_mw_booster
   effective gain(dB):     22.00
@@ -199,6 +218,7 @@ Edfa Edfa_booster_roadm_Borås_to_fiber (Borås → Gothenburg)
   Delta_P (dB):           0.00
   target pch (dBm):       2.00
   effective pch (dBm):    2.00
+  actual pch out (dBm):   2.00
   output VOA (dB):        0.00
 Fiber          fiber (Borås → Gothenburg)
   type_variety:                SSMF
@@ -207,7 +227,8 @@ Fiber          fiber (Borås → Gothenburg)
   total loss (dB):             13.53
   (includes conn loss (dB) in: 0.00 out: 0.00)
   (conn loss out includes EOL margin defined in eqpt_config.json)
-  pch out (dBm): -11.53
+  reference pch out (dBm):     -11.53
+  actual pch out (dBm):        -11.52
 Edfa Edfa_preamp_roadm_Gothenburg_from_fiber (Borås → Gothenburg)
   type_variety:           openroadm_mw_mw_preamp
   effective gain(dB):     13.53
@@ -220,10 +241,12 @@ Edfa Edfa_preamp_roadm_Gothenburg_from_fiber (Borås → Gothenburg)
   Delta_P (dB):           0.00
   target pch (dBm):       2.00
   effective pch (dBm):    2.00
+  actual pch out (dBm):   2.02
   output VOA (dB):        0.00
 Roadm roadm_Gothenburg
-  effective loss (dB):  22.00
+  effective loss (dB):     22.00
-  pch out (dBm):        -20.00
+  reference pch out (dBm): -20.00
+  actual pch out (dBm):    -20.00
 Transceiver trx_Gothenburg
   GSNR (0.1nm, dB):          18.90
   GSNR (signal bw, dB):      14.88

tests/invocation/openroadm-v5-Stockholm-Gothenburg

@@ -16,8 +16,9 @@ Transceiver trx_Stockholm
   PMD (ps):                  0.00
   PDL (dB):                  0.00
 Roadm roadm_Stockholm
-  effective loss (dB):  22.00
+  effective loss (dB):     22.00
-  pch out (dBm):        -20.00
+  reference pch out (dBm): -20.00
+  actual pch out (dBm):    -20.00
 Edfa Edfa_booster_roadm_Stockholm_to_fiber (Stockholm → Norrköping)_(1/2)
   type_variety:           openroadm_mw_mw_booster
   effective gain(dB):     22.00
@@ -30,6 +31,7 @@ Edfa Edfa_booster_roadm_Stockholm_to_fiber (Stockholm → Norrköping)_(1/2)
   Delta_P (dB):           0.00
   target pch (dBm):       2.00
   effective pch (dBm):    2.00
+  actual pch out (dBm):   2.00
   output VOA (dB):        0.00
 Fiber          fiber (Stockholm → Norrköping)_(1/2)
   type_variety:                SSMF
@@ -38,7 +40,8 @@ Fiber          fiber (Stockholm → Norrköping)_(1/2)
   total loss (dB):             16.33
   (includes conn loss (dB) in: 0.00 out: 0.00)
   (conn loss out includes EOL margin defined in eqpt_config.json)
-  pch out (dBm): -14.33
+  reference pch out (dBm):     -14.33
+  actual pch out (dBm):        -14.31
 Edfa Edfa_fiber (Stockholm → Norrköping)_(1/2)
   type_variety:           openroadm_ila_low_noise
   effective gain(dB):     16.33
@@ -51,6 +54,7 @@ Edfa Edfa_fiber (Stockholm → Norrköping)_(1/2)
   Delta_P (dB):           0.00
   target pch (dBm):       2.00
   effective pch (dBm):    2.00
+  actual pch out (dBm):   2.02
   output VOA (dB):        0.00
 Fiber          fiber (Stockholm → Norrköping)_(2/2)
   type_variety:                SSMF
@@ -59,7 +63,8 @@ Fiber          fiber (Stockholm → Norrköping)_(2/2)
   total loss (dB):             16.33
   (includes conn loss (dB) in: 0.00 out: 0.00)
   (conn loss out includes EOL margin defined in eqpt_config.json)
-  pch out (dBm): -14.33
+  reference pch out (dBm):     -14.33
+  actual pch out (dBm):        -14.30
 Edfa Edfa_preamp_roadm_Norrköping_from_fiber (Stockholm → Norrköping)_(2/2)
   type_variety:           openroadm_mw_mw_preamp_worstcase_ver5
   effective gain(dB):     16.33
@@ -72,10 +77,12 @@ Edfa Edfa_preamp_roadm_Norrköping_from_fiber (Stockholm → Norrköping)_(2/2)
   Delta_P (dB):           0.00
   target pch (dBm):       2.00
   effective pch (dBm):    2.00
+  actual pch out (dBm):   2.04
   output VOA (dB):        0.00
 Roadm roadm_Norrköping
-  effective loss (dB):  22.00
+  effective loss (dB):     22.00
-  pch out (dBm):        -20.00
+  reference pch out (dBm): -20.00
+  actual pch out (dBm):    -20.00
 Edfa Edfa_booster_roadm_Norrköping_to_fiber (Norrköping → Linköping)
   type_variety:           openroadm_mw_mw_booster
   effective gain(dB):     22.00
@@ -88,6 +95,7 @@ Edfa Edfa_booster_roadm_Norrköping_to_fiber (Norrköping → Linköping)
   Delta_P (dB):           0.00
   target pch (dBm):       2.00
   effective pch (dBm):    2.00
+  actual pch out (dBm):   2.00
   output VOA (dB):        0.00
 Fiber          fiber (Norrköping → Linköping)
   type_variety:                SSMF
@@ -96,7 +104,8 @@ Fiber          fiber (Norrköping → Linköping)
   total loss (dB):             11.00
   (includes conn loss (dB) in: 0.00 out: 0.00)
   (conn loss out includes EOL margin defined in eqpt_config.json)
-  pch out (dBm): -9.00
+  reference pch out (dBm):     -9.00
+  actual pch out (dBm):        -9.00
 Edfa Edfa_preamp_roadm_Linköping_from_fiber (Norrköping → Linköping)
   type_variety:           openroadm_mw_mw_preamp_worstcase_ver5
   effective gain(dB):     11.00
@@ -109,10 +118,12 @@ Edfa Edfa_preamp_roadm_Linköping_from_fiber (Norrköping → Linköping)
   Delta_P (dB):           0.00
   target pch (dBm):       2.00
   effective pch (dBm):    2.00
+  actual pch out (dBm):   2.01
   output VOA (dB):        0.00
 Roadm roadm_Linköping
-  effective loss (dB):  22.00
+  effective loss (dB):     22.00
-  pch out (dBm):        -20.00
+  reference pch out (dBm): -20.00
+  actual pch out (dBm):    -20.00
 Edfa Edfa_booster_roadm_Linköping_to_fiber (Linköping → Jönköping)
   type_variety:           openroadm_mw_mw_booster
   effective gain(dB):     22.00
@@ -125,6 +136,7 @@ Edfa Edfa_booster_roadm_Linköping_to_fiber (Linköping → Jönköping)
   Delta_P (dB):           0.00
   target pch (dBm):       2.00
   effective pch (dBm):    2.00
+  actual pch out (dBm):   2.00
   output VOA (dB):        0.00
 Fiber          fiber (Linköping → Jönköping)
   type_variety:                SSMF
@@ -133,7 +145,8 @@ Fiber          fiber (Linköping → Jönköping)
   total loss (dB):             26.80
   (includes conn loss (dB) in: 0.00 out: 0.00)
   (conn loss out includes EOL margin defined in eqpt_config.json)
-  pch out (dBm): -24.80
+  reference pch out (dBm):     -24.80
+  actual pch out (dBm):        -24.79
 Edfa Edfa_preamp_roadm_Jönköping_from_fiber (Linköping → Jönköping)
   type_variety:           openroadm_mw_mw_preamp_worstcase_ver5
   effective gain(dB):     26.80
@@ -146,10 +159,12 @@ Edfa Edfa_preamp_roadm_Jönköping_from_fiber (Linköping → Jönköping)
   Delta_P (dB):           0.00
   target pch (dBm):       2.00
   effective pch (dBm):    2.00
+  actual pch out (dBm):   2.04
   output VOA (dB):        0.00
 Roadm roadm_Jönköping
-  effective loss (dB):  22.00
+  effective loss (dB):     22.00
-  pch out (dBm):        -20.00
+  reference pch out (dBm): -20.00
+  actual pch out (dBm):    -20.00
 Edfa Edfa_booster_roadm_Jönköping_to_fiber (Jönköping → Borås)
   type_variety:           openroadm_mw_mw_booster
   effective gain(dB):     22.00
@@ -162,6 +177,7 @@ Edfa Edfa_booster_roadm_Jönköping_to_fiber (Jönköping → Borås)
   Delta_P (dB):           0.00
   target pch (dBm):       2.00
   effective pch (dBm):    2.00
+  actual pch out (dBm):   2.00
   output VOA (dB):        0.00
 Fiber          fiber (Jönköping → Borås)
   type_variety:                SSMF
@@ -170,7 +186,8 @@ Fiber          fiber (Jönköping → Borås)
   total loss (dB):             17.82
   (includes conn loss (dB) in: 0.00 out: 0.00)
   (conn loss out includes EOL margin defined in eqpt_config.json)
-  pch out (dBm): -15.82
+  reference pch out (dBm):     -15.82
+  actual pch out (dBm):        -15.81
 Edfa Edfa_preamp_roadm_Borås_from_fiber (Jönköping → Borås)
   type_variety:           openroadm_mw_mw_preamp_worstcase_ver5
   effective gain(dB):     17.82
@@ -183,10 +200,12 @@ Edfa Edfa_preamp_roadm_Borås_from_fiber (Jönköping → Borås)
   Delta_P (dB):           0.00
   target pch (dBm):       2.00
   effective pch (dBm):    2.00
+  actual pch out (dBm):   2.01
   output VOA (dB):        0.00
 Roadm roadm_Borås
-  effective loss (dB):  22.00
+  effective loss (dB):     22.00
-  pch out (dBm):        -20.00
+  reference pch out (dBm): -20.00
+  actual pch out (dBm):    -20.00
 Edfa Edfa_booster_roadm_Borås_to_fiber (Borås → Gothenburg)
   type_variety:           openroadm_mw_mw_booster
   effective gain(dB):     22.00
@@ -199,6 +218,7 @@ Edfa Edfa_booster_roadm_Borås_to_fiber (Borås → Gothenburg)
   Delta_P (dB):           0.00
   target pch (dBm):       2.00
   effective pch (dBm):    2.00
+  actual pch out (dBm):   2.00
   output VOA (dB):        0.00
 Fiber          fiber (Borås → Gothenburg)
   type_variety:                SSMF
@@ -207,7 +227,8 @@ Fiber          fiber (Borås → Gothenburg)
   total loss (dB):             13.53
   (includes conn loss (dB) in: 0.00 out: 0.00)
   (conn loss out includes EOL margin defined in eqpt_config.json)
-  pch out (dBm): -11.53
+  reference pch out (dBm):     -11.53
+  actual pch out (dBm):        -11.52
 Edfa Edfa_preamp_roadm_Gothenburg_from_fiber (Borås → Gothenburg)
   type_variety:           openroadm_mw_mw_preamp_worstcase_ver5
   effective gain(dB):     13.53
@@ -220,10 +241,12 @@ Edfa Edfa_preamp_roadm_Gothenburg_from_fiber (Borås → Gothenburg)
   Delta_P (dB):           0.00
   target pch (dBm):       2.00
   effective pch (dBm):    2.00
+  actual pch out (dBm):   2.02
   output VOA (dB):        0.00
 Roadm roadm_Gothenburg
-  effective loss (dB):  22.00
+  effective loss (dB):     22.00
-  pch out (dBm):        -20.00
+  reference pch out (dBm): -20.00
+  actual pch out (dBm):    -20.00
 Transceiver trx_Gothenburg
   GSNR (0.1nm, dB):          19.27
   GSNR (signal bw, dB):      15.24

tests/invocation/path_requests_run

@@ -146,7 +146,7 @@ req id   demand                                GSNR@bandwidth A-Z (Z-A)   GSNR@0
 0       trx Lorient_KMA to trx Vannes_KBE :             24.83                    28.92                      14                     mode 1                   100.0                      1                     (-284,4)        
 1       trx Brest_KLA to trx Vannes_KBE :               17.75                    21.83                      14                     mode 1                   200.0                      2                     (-272,8)        
 3       trx Lannion_CAS to trx Rennes_STA :             22.21                    26.29                      13                     mode 1                    60.0                      1                     (-284,4)        
-4       trx Rennes_STA to trx Lannion_CAS :             16.07                    23.29                      17                     mode 2                   150.0                      1                     (-258,6)        
+4       trx Rennes_STA to trx Lannion_CAS :             16.06                    23.29                      17                     mode 2                   150.0                      1                     (-258,6)        
 5       trx Rennes_STA to trx Lannion_CAS :             20.31                    27.54                      17                     mode 2                    20.0                      1                     (-274,6)        
 7 | 6   trx Lannion_CAS to trx Lorient_KMA :            19.52                    23.61                      14                     mode 1                   700.0                      7                    (-224,28)        
 7b      trx Lannion_CAS to trx Lorient_KMA :            19.61                    23.69                      14                     mode 1                   400.0                      4                    (-172,24)        

tests/invocation/spectrum1_transmission_main_example

@@ -0,0 +1,100 @@
+User input for spectrum used for propagation instead of SI
+There are 76 channels propagating
+Power mode is set to True
+=> it can be modified in eqpt_config.json - Span
+
+There are 3 fiber spans over 130 km between trx Lannion_CAS and trx Lorient_KMA
+
+Now propagating between trx Lannion_CAS and trx Lorient_KMA:
+
+Propagating with input power = 0.00 dBm:
+Transceiver trx Lannion_CAS
+  GSNR (0.1nm, dB):          40.00
+  GSNR (signal bw, dB):      35.92
+  OSNR ASE (0.1nm, dB):      40.00
+  OSNR ASE (signal bw, dB):  35.92
+  CD (ps/nm):                0.00
+  PMD (ps):                  0.00
+  PDL (dB):                  0.00
+Roadm roadm Lannion_CAS
+  effective loss (dB):     20.00
+  reference pch out (dBm): -20.00
+  actual pch out (dBm):    -20.00
+Edfa east edfa in Lannion_CAS to Corlay
+  type_variety:           std_medium_gain
+  effective gain(dB):     21.00
+  (before att_in and before output VOA)
+  noise figure (dB):      6.36
+  (including att_in)
+  pad att_in (dB):        0.00
+  Power In (dBm):         -1.19
+  Power Out (dBm):        19.82
+  Delta_P (dB):           1.00
+  target pch (dBm):       1.00
+  effective pch (dBm):    1.00
+  actual pch out (dBm):   1.01
+  output VOA (dB):        0.00
+Fiber          fiber (Lannion_CAS → Corlay)-F061
+  type_variety:                SSMF
+  length (km):                 20.00
+  pad att_in (dB):             0.00
+  total loss (dB):             4.00
+  (includes conn loss (dB) in: 0.00 out: 0.00)
+  (conn loss out includes EOL margin defined in eqpt_config.json)
+  reference pch out (dBm):     -3.00
+  actual pch out (dBm):        -2.99
+Fused west fused spans in Corlay
+  loss (dB): 1.00
+Fiber          fiber (Corlay → Loudeac)-F010
+  type_variety:                SSMF
+  length (km):                 50.00
+  pad att_in (dB):             0.00
+  total loss (dB):             10.00
+  (includes conn loss (dB) in: 0.00 out: 0.00)
+  (conn loss out includes EOL margin defined in eqpt_config.json)
+  reference pch out (dBm):     -14.00
+  actual pch out (dBm):        -13.99
+Fused west fused spans in Loudeac
+  loss (dB): 1.00
+Fiber          fiber (Loudeac → Lorient_KMA)-F054
+  type_variety:                SSMF
+  length (km):                 60.00
+  pad att_in (dB):             0.00
+  total loss (dB):             12.00
+  (includes conn loss (dB) in: 0.00 out: 0.00)
+  (conn loss out includes EOL margin defined in eqpt_config.json)
+  reference pch out (dBm):     -27.00
+  actual pch out (dBm):        -26.99
+Edfa west edfa in Lorient_KMA to Loudeac
+  type_variety:           std_high_gain
+  effective gain(dB):     28.00
+  (before att_in and before output VOA)
+  noise figure (dB):      5.92
+  (including att_in)
+  pad att_in (dB):        0.00
+  Power In (dBm):         -8.18
+  Power Out (dBm):        19.85
+  Delta_P (dB):           1.00
+  target pch (dBm):       1.00
+  effective pch (dBm):    1.00
+  actual pch out (dBm):   1.05
+  output VOA (dB):        0.00
+Roadm roadm Lorient_KMA
+  effective loss (dB):     21.00
+  reference pch out (dBm): -20.00
+  actual pch out (dBm):    -20.00
+Transceiver trx Lorient_KMA
+  GSNR (0.1nm, dB):          23.61
+  GSNR (signal bw, dB):      19.52
+  OSNR ASE (0.1nm, dB):      23.89
+  OSNR ASE (signal bw, dB):  19.81
+  CD (ps/nm):                2171.00
+  PMD (ps):                  0.46
+  PDL (dB):                  0.00
+
+Transmission result for input power = 0.00 dBm:
+  Final GSNR (0.1 nm): 23.61 dB
+
+(No source node specified: picked trx Lannion_CAS)
+
+(No destination node specified: picked trx Lorient_KMA)

tests/invocation/spectrum2_transmission_main_example

@@ -0,0 +1,163 @@
+User input for spectrum used for propagation instead of SI
+There are 60 channels propagating
+Power mode is set to True
+=> it can be modified in eqpt_config.json - Span
+
+There are 3 fiber spans over 130 km between trx Lannion_CAS and trx Lorient_KMA
+
+Now propagating between trx Lannion_CAS and trx Lorient_KMA:
+
+Propagating with input power = 0.00 dBm:
+Transceiver trx Lannion_CAS
+  GSNR (0.1nm, dB):          mode_1: 40.00, mode_2: 40.00
+  GSNR (signal bw, dB):      mode_1: 35.92, mode_2: 32.91
+  OSNR ASE (0.1nm, dB):      mode_1: 40.00, mode_2: 40.00
+  OSNR ASE (signal bw, dB):  mode_1: 35.92, mode_2: 32.91
+  CD (ps/nm):                0.00
+  PMD (ps):                  0.00
+  PDL (dB):                  0.00
+Roadm roadm Lannion_CAS
+  effective loss (dB):     20.00
+  reference pch out (dBm): -20.00
+  actual pch out (dBm):    mode_1: -20.00, mode_2: -20.00
+Edfa east edfa in Lannion_CAS to Corlay
+  type_variety:           std_medium_gain
+  effective gain(dB):     21.00
+  (before att_in and before output VOA)
+  noise figure (dB):      6.36
+  (including att_in)
+  pad att_in (dB):        0.00
+  Power In (dBm):         -2.22
+  Power Out (dBm):        18.79
+  Delta_P (dB):           1.00
+  target pch (dBm):       1.00
+  effective pch (dBm):    1.00
+  actual pch out (dBm):   mode_1: 1.01, mode_2: 1.02
+  output VOA (dB):        0.00
+Fiber          fiber (Lannion_CAS → Corlay)-F061
+  type_variety:                SSMF
+  length (km):                 20.00
+  pad att_in (dB):             0.00
+  total loss (dB):             4.00
+  (includes conn loss (dB) in: 0.00 out: 0.00)
+  (conn loss out includes EOL margin defined in eqpt_config.json)
+  reference pch out (dBm):     -3.00
+  actual pch out (dBm):        mode_1: -2.99, mode_2: -2.98
+Fused west fused spans in Corlay
+  loss (dB): 1.00
+Fiber          fiber (Corlay → Loudeac)-F010
+  type_variety:                SSMF
+  length (km):                 50.00
+  pad att_in (dB):             0.00
+  total loss (dB):             10.00
+  (includes conn loss (dB) in: 0.00 out: 0.00)
+  (conn loss out includes EOL margin defined in eqpt_config.json)
+  reference pch out (dBm):     -14.00
+  actual pch out (dBm):        mode_1: -13.99, mode_2: -13.98
+Fused west fused spans in Loudeac
+  loss (dB): 1.00
+Fiber          fiber (Loudeac → Lorient_KMA)-F054
+  type_variety:                SSMF
+  length (km):                 60.00
+  pad att_in (dB):             0.00
+  total loss (dB):             12.00
+  (includes conn loss (dB) in: 0.00 out: 0.00)
+  (conn loss out includes EOL margin defined in eqpt_config.json)
+  reference pch out (dBm):     -27.00
+  actual pch out (dBm):        mode_1: -26.99, mode_2: -26.98
+Edfa west edfa in Lorient_KMA to Loudeac
+  type_variety:           std_high_gain
+  effective gain(dB):     28.00
+  (before att_in and before output VOA)
+  noise figure (dB):      5.92
+  (including att_in)
+  pad att_in (dB):        0.00
+  Power In (dBm):         -9.21
+  Power Out (dBm):        18.84
+  Delta_P (dB):           1.00
+  target pch (dBm):       1.00
+  effective pch (dBm):    1.00
+  actual pch out (dBm):   mode_1: 1.04, mode_2: 1.09
+  output VOA (dB):        0.00
+Roadm roadm Lorient_KMA
+  effective loss (dB):     21.00
+  reference pch out (dBm): -20.00
+  actual pch out (dBm):    mode_1: -20.00, mode_2: -20.00
+Transceiver trx Lorient_KMA
+  GSNR (0.1nm, dB):          mode_1: 23.65, mode_2: 23.81
+  GSNR (signal bw, dB):      mode_1: 19.57, mode_2: 16.72
+  OSNR ASE (0.1nm, dB):      mode_1: 23.91, mode_2: 23.87
+  OSNR ASE (signal bw, dB):  mode_1: 19.83, mode_2: 16.78
+  CD (ps/nm):                2171.00
+  PMD (ps):                  0.46
+  PDL (dB):                  0.00
+
+Transmission result for input power = 0.00 dBm:
+  Final GSNR (0.1 nm): 23.72 dB
+
+The GSNR per channel at the end of the line is:
+Ch. #   Channel frequency (THz)       Channel power (dBm)    OSNR ASE (signal bw, dB)     SNR NLI (signal bw, dB)        GSNR (signal bw, dB)
+    1                 191.40000                    -20.04                       19.85                       33.30                       19.65
+    2                 191.45000                    -20.04                       19.85                       32.70                       19.63
+    3                 191.50000                    -20.04                       19.84                       32.45                       19.61
+    4                 191.55000                    -20.04                       19.84                       32.29                       19.60
+    5                 191.60000                    -20.04                       19.84                       32.18                       19.60
+    6                 191.65000                    -20.04                       19.84                       32.10                       19.59
+    7                 191.70000                    -20.04                       19.84                       32.03                       19.59
+    8                 191.75000                    -20.04                       19.84                       31.98                       19.58
+    9                 191.80000                    -20.04                       19.84                       31.93                       19.58
+   10                 191.85000                    -20.04                       19.84                       31.90                       19.57
+   11                 191.90000                    -20.04                       19.84                       31.86                       19.57
+   12                 191.95000                    -20.04                       19.84                       31.84                       19.57
+   13                 192.00000                    -20.04                       19.83                       31.82                       19.57
+   14                 192.05000                    -20.04                       19.83                       31.80                       19.57
+   15                 192.10000                    -20.04                       19.83                       31.78                       19.56
+   16                 192.15000                    -20.04                       19.83                       31.77                       19.56
+   17                 192.20000                    -20.04                       19.83                       31.76                       19.56
+   18                 192.25000                    -20.04                       19.83                       31.75                       19.56
+   19                 192.30000                    -20.04                       19.83                       31.75                       19.56
+   20                 192.35000                    -20.04                       19.83                       31.75                       19.56
+   21                 192.40000                    -20.05                       19.83                       31.75                       19.56
+   22                 192.45000                    -20.05                       19.82                       31.75                       19.55
+   23                 192.50000                    -20.05                       19.82                       31.76                       19.55
+   24                 192.55000                    -20.05                       19.82                       31.76                       19.55
+   25                 192.60000                    -20.05                       19.82                       31.78                       19.55
+   26                 192.65000                    -20.05                       19.82                       31.79                       19.55
+   27                 192.70000                    -20.05                       19.82                       31.81                       19.55
+   28                 192.75000                    -20.05                       19.82                       31.83                       19.55
+   29                 192.80000                    -20.05                       19.82                       31.86                       19.55
+   30                 192.85000                    -20.05                       19.82                       31.90                       19.56
+   31                 192.90000                    -20.04                       19.82                       31.95                       19.56
+   32                 192.95000                    -20.04                       19.81                       32.02                       19.56
+   33                 193.00000                    -20.04                       19.81                       32.11                       19.56
+   34                 193.05000                    -20.04                       19.81                       32.27                       19.57
+   35                 193.10000                    -20.04                       19.81                       32.61                       19.59
+   36                 193.16250                    -20.09                       16.80                       33.70                       16.71
+   37                 193.23750                    -20.09                       16.80                       34.20                       16.72
+   38                 193.31250                    -20.09                       16.80                       34.45                       16.72
+   39                 193.38750                    -20.09                       16.79                       34.62                       16.72
+   40                 193.46250                    -20.09                       16.79                       34.75                       16.72
+   41                 193.53750                    -20.09                       16.79                       34.85                       16.72
+   42                 193.61250                    -20.09                       16.79                       34.94                       16.72
+   43                 193.68750                    -20.09                       16.79                       35.02                       16.72
+   44                 193.76250                    -20.09                       16.79                       35.08                       16.72
+   45                 193.83750                    -20.09                       16.78                       35.15                       16.72
+   46                 193.91250                    -20.09                       16.78                       35.20                       16.72
+   47                 193.98750                    -20.09                       16.78                       35.26                       16.72
+   48                 194.06250                    -20.09                       16.78                       35.31                       16.72
+   49                 194.13750                    -20.09                       16.78                       35.36                       16.72
+   50                 194.21250                    -20.09                       16.78                       35.41                       16.72
+   51                 194.28750                    -20.09                       16.78                       35.47                       16.72
+   52                 194.36250                    -20.09                       16.77                       35.52                       16.72
+   53                 194.43750                    -20.09                       16.77                       35.58                       16.72
+   54                 194.51250                    -20.09                       16.77                       35.65                       16.71
+   55                 194.58750                    -20.09                       16.77                       35.72                       16.71
+   56                 194.66250                    -20.09                       16.77                       35.81                       16.71
+   57                 194.73750                    -20.09                       16.77                       35.92                       16.71
+   58                 194.81250                    -20.09                       16.76                       36.06                       16.71
+   59                 194.88750                    -20.09                       16.76                       36.27                       16.71
+   60                 194.96250                    -20.09                       16.76                       36.75                       16.72
+
+(No source node specified: picked trx Lannion_CAS)
+
+(No destination node specified: picked trx Lorient_KMA)

tests/invocation/transmission_main_example

@@ -22,7 +22,8 @@ Fiber          Span1
   total loss (dB):             17.00
   (includes conn loss (dB) in: 0.50 out: 0.50)
   (conn loss out includes EOL margin defined in eqpt_config.json)
-  pch out (dBm): -17.00
+  reference pch out (dBm):     -17.00
+  actual pch out (dBm):        -17.00
 Edfa Edfa1
   type_variety:           std_low_gain
   effective gain(dB):     15.00
@@ -35,6 +36,7 @@ Edfa Edfa1
   Delta_P (dB):           -2.00
   target pch (dBm):       -2.00
   effective pch (dBm):    -2.00
+  actual pch out (dBm):   -1.99
   output VOA (dB):        0.00
 Transceiver Site_B
   GSNR (0.1nm, dB):          31.17

tests/invocation/transmission_main_example__raman

@@ -22,27 +22,29 @@ RamanFiber          Span1
   total loss (dB):             17.00
   (includes conn loss (dB) in: 0.50 out: 0.50)
   (conn loss out includes EOL margin defined in eqpt_config.json)
-  pch out (dBm): -7.71
+  reference pch out (dBm):     -7.77
+  actual pch out (dBm):        -8.03
 Fused Fused1
   loss (dB): 0.00
 Edfa Edfa1
   type_variety:           std_low_gain
-  effective gain(dB):     5.71
+  effective gain(dB):     5.77
   (before att_in and before output VOA)
-  noise figure (dB):      13.29
+  noise figure (dB):      13.23
   (including att_in)
-  pad att_in (dB):        2.29
+  pad att_in (dB):        2.23
-  Power In (dBm):         11.11
+  Power In (dBm):         11.04
-  Power Out (dBm):        16.82
+  Power Out (dBm):        16.81
   Delta_P (dB):           -2.00
   target pch (dBm):       -2.00
   effective pch (dBm):    -2.00
+  actual pch out (dBm):   -2.26
   output VOA (dB):        0.00
 Transceiver Site_B
   GSNR (0.1nm, dB):          31.44
   GSNR (signal bw, dB):      27.36
-  OSNR ASE (0.1nm, dB):      34.22
+  OSNR ASE (0.1nm, dB):      34.21
-  OSNR ASE (signal bw, dB):  30.14
+  OSNR ASE (signal bw, dB):  30.13
   CD (ps/nm):                1336.00
   PMD (ps):                  0.36
   PDL (dB):                  0.00
@@ -52,82 +54,82 @@ Transmission result for input power = 0.00 dBm:
 
 The GSNR per channel at the end of the line is:
 Ch. #   Channel frequency (THz)       Channel power (dBm)    OSNR ASE (signal bw, dB)     SNR NLI (signal bw, dB)        GSNR (signal bw, dB)
-    1                    191.35                      0.18                       31.61                       31.43                       28.51
+    1                 191.35000                      0.21                       31.62                       31.43                       28.52
-    2                    191.40                      0.14                       31.59                       31.34                       28.45
+    2                 191.40000                      0.17                       31.60                       31.35                       28.46
-    3                    191.45                      0.11                       31.57                       31.26                       28.40
+    3                 191.45000                      0.13                       31.58                       31.26                       28.41
-    4                    191.50                      0.07                       31.55                       31.17                       28.35
+    4                 191.50000                      0.09                       31.56                       31.18                       28.36
-    5                    191.55                      0.02                       31.52                       31.09                       28.29
+    5                 191.55000                      0.03                       31.53                       31.10                       28.30
-    6                    191.60                     -0.04                       31.49                       31.02                       28.24
+    6                 191.60000                     -0.02                       31.50                       31.02                       28.24
-    7                    191.65                     -0.10                       31.46                       30.94                       28.18
+    7                 191.65000                     -0.08                       31.46                       30.94                       28.19
-    8                    191.70                     -0.16                       31.43                       30.86                       28.13
+    8                 191.70000                     -0.14                       31.43                       30.87                       28.13
-    9                    191.75                     -0.21                       31.40                       30.79                       28.07
+    9                 191.75000                     -0.20                       31.40                       30.79                       28.08
-   10                    191.80                     -0.28                       31.36                       30.71                       28.02
+   10                 191.80000                     -0.27                       31.37                       30.72                       28.02
-   11                    191.85                     -0.34                       31.33                       30.64                       27.96
+   11                 191.85000                     -0.33                       31.33                       30.65                       27.97
-   12                    191.90                     -0.40                       31.29                       30.57                       27.91
+   12                 191.90000                     -0.40                       31.29                       30.58                       27.91
-   13                    191.95                     -0.47                       31.26                       30.50                       27.85
+   13                 191.95000                     -0.46                       31.26                       30.51                       27.86
-   14                    192.00                     -0.53                       31.22                       30.43                       27.80
+   14                 192.00000                     -0.53                       31.22                       30.44                       27.80
-   15                    192.05                     -0.60                       31.18                       30.36                       27.74
+   15                 192.05000                     -0.59                       31.18                       30.37                       27.75
-   16                    192.10                     -0.66                       31.15                       30.30                       27.69
+   16                 192.10000                     -0.66                       31.15                       30.30                       27.69
-   17                    192.15                     -0.73                       31.11                       30.23                       27.64
+   17                 192.15000                     -0.73                       31.11                       30.24                       27.64
-   18                    192.20                     -0.79                       31.07                       30.16                       27.58
+   18                 192.20000                     -0.80                       31.07                       30.17                       27.59
-   19                    192.25                     -0.86                       31.04                       30.17                       27.57
+   19                 192.25000                     -0.86                       31.03                       30.18                       27.57
-   20                    192.30                     -0.94                       30.99                       30.18                       27.56
+   20                 192.30000                     -0.94                       30.99                       30.19                       27.56
-   21                    192.35                     -1.01                       30.95                       30.19                       27.54
+   21                 192.35000                     -1.02                       30.94                       30.20                       27.54
-   22                    192.40                     -1.08                       30.91                       30.20                       27.53
+   22                 192.40000                     -1.09                       30.90                       30.20                       27.53
-   23                    192.45                     -1.16                       30.86                       30.20                       27.51
+   23                 192.45000                     -1.17                       30.86                       30.21                       27.51
-   24                    192.50                     -1.23                       30.82                       30.21                       27.49
+   24                 192.50000                     -1.24                       30.81                       30.22                       27.50
-   25                    192.55                     -1.30                       30.78                       30.22                       27.48
+   25                 192.55000                     -1.31                       30.77                       30.23                       27.48
-   26                    192.60                     -1.37                       30.74                       30.23                       27.46
+   26                 192.60000                     -1.38                       30.73                       30.23                       27.46
-   27                    192.65                     -1.44                       30.70                       30.23                       27.45
+   27                 192.65000                     -1.45                       30.69                       30.24                       27.45
-   28                    192.70                     -1.51                       30.65                       30.24                       27.43
+   28                 192.70000                     -1.52                       30.65                       30.25                       27.43
-   29                    192.75                     -1.58                       30.61                       30.25                       27.42
+   29                 192.75000                     -1.59                       30.60                       30.26                       27.42
-   30                    192.80                     -1.65                       30.57                       30.26                       27.40
+   30                 192.80000                     -1.67                       30.56                       30.27                       27.40
-   31                    192.85                     -1.72                       30.53                       30.27                       27.38
+   31                 192.85000                     -1.74                       30.52                       30.27                       27.38
-   32                    192.90                     -1.79                       30.48                       30.27                       27.37
+   32                 192.90000                     -1.81                       30.47                       30.28                       27.37
-   33                    192.95                     -1.86                       30.44                       30.28                       27.35
+   33                 192.95000                     -1.88                       30.43                       30.29                       27.35
-   34                    193.00                     -1.93                       30.40                       30.29                       27.33
+   34                 193.00000                     -1.95                       30.39                       30.30                       27.33
-   35                    193.05                     -2.00                       30.35                       30.30                       27.32
+   35                 193.05000                     -2.02                       30.34                       30.30                       27.31
-   36                    193.10                     -2.07                       30.31                       30.30                       27.30
+   36                 193.10000                     -2.08                       30.30                       30.31                       27.30
-   37                    193.15                     -2.14                       30.27                       30.31                       27.28
+   37                 193.15000                     -2.15                       30.26                       30.32                       27.28
-   38                    193.20                     -2.20                       30.22                       30.33                       27.27
+   38                 193.20000                     -2.22                       30.21                       30.34                       27.26
-   39                    193.25                     -2.27                       30.18                       30.35                       27.25
+   39                 193.25000                     -2.29                       30.17                       30.36                       27.25
-   40                    193.30                     -2.34                       30.14                       30.37                       27.24
+   40                 193.30000                     -2.36                       30.13                       30.37                       27.24
-   41                    193.35                     -2.41                       30.09                       30.38                       27.23
+   41                 193.35000                     -2.43                       30.08                       30.39                       27.22
-   42                    193.40                     -2.48                       30.05                       30.40                       27.21
+   42                 193.40000                     -2.50                       30.04                       30.41                       27.21
-   43                    193.45                     -2.55                       30.00                       30.42                       27.20
+   43                 193.45000                     -2.56                       29.99                       30.43                       27.19
-   44                    193.50                     -2.61                       29.96                       30.44                       27.18
+   44                 193.50000                     -2.63                       29.95                       30.44                       27.18
-   45                    193.55                     -2.69                       29.91                       30.46                       27.16
+   45                 193.55000                     -2.70                       29.90                       30.46                       27.16
-   46                    193.60                     -2.76                       29.86                       30.47                       27.15
+   46                 193.60000                     -2.78                       29.85                       30.48                       27.15
-   47                    193.65                     -2.83                       29.82                       30.49                       27.13
+   47                 193.65000                     -2.85                       29.80                       30.50                       27.13
-   48                    193.70                     -2.90                       29.77                       30.51                       27.11
+   48                 193.70000                     -2.92                       29.76                       30.52                       27.11
-   49                    193.75                     -2.98                       29.72                       30.53                       27.10
+   49                 193.75000                     -2.99                       29.71                       30.54                       27.09
-   50                    193.80                     -3.05                       29.67                       30.55                       27.08
+   50                 193.80000                     -3.06                       29.66                       30.55                       27.07
-   51                    193.85                     -3.12                       29.62                       30.57                       27.06
+   51                 193.85000                     -3.14                       29.61                       30.57                       27.06
-   52                    193.90                     -3.19                       29.58                       30.58                       27.04
+   52                 193.90000                     -3.21                       29.56                       30.59                       27.04
-   53                    193.95                     -3.26                       29.53                       30.60                       27.02
+   53                 193.95000                     -3.28                       29.52                       30.61                       27.02
-   54                    194.00                     -3.33                       29.48                       30.62                       27.00
+   54                 194.00000                     -3.35                       29.47                       30.63                       27.00
-   55                    194.05                     -3.41                       29.43                       30.64                       26.98
+   55                 194.05000                     -3.42                       29.42                       30.65                       26.98
-   56                    194.10                     -3.48                       29.38                       30.66                       26.96
+   56                 194.10000                     -3.50                       29.37                       30.67                       26.96
-   57                    194.15                     -3.55                       29.33                       30.72                       26.96
+   57                 194.15000                     -3.57                       29.32                       30.72                       26.95
-   58                    194.20                     -3.63                       29.28                       30.78                       26.95
+   58                 194.20000                     -3.64                       29.26                       30.78                       26.95
-   59                    194.25                     -3.70                       29.23                       30.83                       26.95
+   59                 194.25000                     -3.72                       29.21                       30.84                       26.94
-   60                    194.30                     -3.77                       29.18                       30.89                       26.94
+   60                 194.30000                     -3.79                       29.16                       30.90                       26.94
-   61                    194.35                     -3.85                       29.12                       30.96                       26.93
+   61                 194.35000                     -3.86                       29.11                       30.96                       26.93
-   62                    194.40                     -3.92                       29.07                       31.02                       26.93
+   62                 194.40000                     -3.93                       29.06                       31.02                       26.92
-   63                    194.45                     -3.99                       29.02                       31.08                       26.92
+   63                 194.45000                     -4.01                       29.01                       31.09                       26.91
-   64                    194.50                     -4.06                       28.97                       31.14                       26.91
+   64                 194.50000                     -4.08                       28.96                       31.15                       26.91
-   65                    194.55                     -4.13                       28.92                       31.21                       26.91
+   65                 194.55000                     -4.14                       28.91                       31.21                       26.90
-   66                    194.60                     -4.19                       28.88                       31.27                       26.90
+   66                 194.60000                     -4.21                       28.86                       31.28                       26.90
-   67                    194.65                     -4.26                       28.83                       31.34                       26.89
+   67                 194.65000                     -4.27                       28.82                       31.34                       26.89
-   68                    194.70                     -4.33                       28.78                       31.41                       26.89
+   68                 194.70000                     -4.34                       28.77                       31.41                       26.88
-   69                    194.75                     -4.39                       28.73                       31.47                       26.88
+   69                 194.75000                     -4.41                       28.72                       31.48                       26.88
-   70                    194.80                     -4.46                       28.68                       31.54                       26.87
+   70                 194.80000                     -4.47                       28.67                       31.55                       26.87
-   71                    194.85                     -4.52                       28.64                       31.61                       26.86
+   71                 194.85000                     -4.54                       28.63                       31.62                       26.86
-   72                    194.90                     -4.59                       28.59                       31.68                       26.86
+   72                 194.90000                     -4.60                       28.58                       31.69                       26.85
-   73                    194.95                     -4.65                       28.54                       31.76                       26.85
+   73                 194.95000                     -4.67                       28.53                       31.76                       26.84
-   74                    195.00                     -4.72                       28.49                       31.83                       26.84
+   74                 195.00000                     -4.73                       28.48                       31.84                       26.83
-   75                    195.05                     -4.78                       28.44                       31.91                       26.83
+   75                 195.05000                     -4.80                       28.43                       31.91                       26.82
-   76                    195.10                     -4.85                       28.39                       31.91                       26.79
+   76                 195.10000                     -4.86                       28.38                       31.91                       26.79
 
 (No source node specified: picked Site_A)
 

tests/invocation/transmission_main_example_long

@@ -0,0 +1,453 @@
+There are 96 channels propagating
+Power mode is set to True
+=> it can be modified in eqpt_config.json - Span
+
+There are 15 fiber spans over 1200 km between Site_A and Site_B
+
+Now propagating between Site_A and Site_B:
+
+Propagating with input power = 0.00 dBm:
+Transceiver Site_A
+  GSNR (0.1nm, dB):          100.00
+  GSNR (signal bw, dB):      95.92
+  OSNR ASE (0.1nm, dB):      100.00
+  OSNR ASE (signal bw, dB):  95.92
+  CD (ps/nm):                0.00
+  PMD (ps):                  0.00
+  PDL (dB):                  0.00
+Roadm roadm Site A
+  effective loss (dB):     20.00
+  reference pch out (dBm): -20.00
+  actual pch out (dBm):    -20.00
+Edfa booster A
+  type_variety:           std_medium_gain
+  effective gain(dB):     20.00
+  (before att_in and before output VOA)
+  noise figure (dB):      6.58
+  (including att_in)
+  pad att_in (dB):        0.00
+  Power In (dBm):         -0.18
+  Power Out (dBm):        19.83
+  Delta_P (dB):           0.00
+  target pch (dBm):       0.00
+  effective pch (dBm):    0.00
+  actual pch out (dBm):   0.01
+  output VOA (dB):        0.00
+Fiber          Span1
+  type_variety:                SSMF
+  length (km):                 80.00
+  pad att_in (dB):             0.00
+  total loss (dB):             16.00
+  (includes conn loss (dB) in: 0.00 out: 0.00)
+  (conn loss out includes EOL margin defined in eqpt_config.json)
+  reference pch out (dBm):     -16.00
+  actual pch out (dBm):        -15.99
+Edfa Edfa1
+  type_variety:           test
+  effective gain(dB):     16.00
+  (before att_in and before output VOA)
+  noise figure (dB):      8.86
+  (including att_in)
+  pad att_in (dB):        0.00
+  Power In (dBm):         3.84
+  Power Out (dBm):        19.84
+  Delta_P (dB):           0.00
+  target pch (dBm):       0.00
+  effective pch (dBm):    0.00
+  actual pch out (dBm):   0.02
+  output VOA (dB):        0.00
+Fiber          Span2
+  type_variety:                SSMF
+  length (km):                 80.00
+  pad att_in (dB):             0.00
+  total loss (dB):             16.00
+  (includes conn loss (dB) in: 0.00 out: 0.00)
+  (conn loss out includes EOL margin defined in eqpt_config.json)
+  reference pch out (dBm):     -16.00
+  actual pch out (dBm):        -15.98
+Edfa Edfa2
+  type_variety:           test_fixed_gain
+  effective gain(dB):     16.00
+  (before att_in and before output VOA)
+  noise figure (dB):      9.00
+  (including att_in)
+  pad att_in (dB):        4.00
+  Power In (dBm):         3.84
+  Power Out (dBm):        19.85
+  Delta_P (dB):           0.00
+  target pch (dBm):       0.00
+  effective pch (dBm):    0.00
+  actual pch out (dBm):   0.03
+  output VOA (dB):        0.00
+Fiber          Span3
+  type_variety:                SSMF
+  length (km):                 80.00
+  pad att_in (dB):             0.00
+  total loss (dB):             16.00
+  (includes conn loss (dB) in: 0.00 out: 0.00)
+  (conn loss out includes EOL margin defined in eqpt_config.json)
+  reference pch out (dBm):     -16.00
+  actual pch out (dBm):        -15.97
+Edfa Edfa3
+  type_variety:           test
+  effective gain(dB):     16.00
+  (before att_in and before output VOA)
+  noise figure (dB):      8.86
+  (including att_in)
+  pad att_in (dB):        0.00
+  Power In (dBm):         3.85
+  Power Out (dBm):        19.86
+  Delta_P (dB):           0.00
+  target pch (dBm):       0.00
+  effective pch (dBm):    0.00
+  actual pch out (dBm):   0.04
+  output VOA (dB):        0.00
+Fiber          Span4
+  type_variety:                SSMF
+  length (km):                 80.00
+  pad att_in (dB):             0.00
+  total loss (dB):             16.00
+  (includes conn loss (dB) in: 0.00 out: 0.00)
+  (conn loss out includes EOL margin defined in eqpt_config.json)
+  reference pch out (dBm):     -16.00
+  actual pch out (dBm):        -15.96
+Edfa Edfa4
+  type_variety:           test_fixed_gain
+  effective gain(dB):     16.00
+  (before att_in and before output VOA)
+  noise figure (dB):      9.00
+  (including att_in)
+  pad att_in (dB):        4.00
+  Power In (dBm):         3.86
+  Power Out (dBm):        19.87
+  Delta_P (dB):           0.00
+  target pch (dBm):       0.00
+  effective pch (dBm):    0.00
+  actual pch out (dBm):   0.05
+  output VOA (dB):        0.00
+Fiber          Span5
+  type_variety:                SSMF
+  length (km):                 80.00
+  pad att_in (dB):             0.00
+  total loss (dB):             16.00
+  (includes conn loss (dB) in: 0.00 out: 0.00)
+  (conn loss out includes EOL margin defined in eqpt_config.json)
+  reference pch out (dBm):     -16.00
+  actual pch out (dBm):        -15.95
+Edfa Edfa5
+  type_variety:           test
+  effective gain(dB):     16.00
+  (before att_in and before output VOA)
+  noise figure (dB):      8.86
+  (including att_in)
+  pad att_in (dB):        0.00
+  Power In (dBm):         3.87
+  Power Out (dBm):        19.88
+  Delta_P (dB):           0.00
+  target pch (dBm):       0.00
+  effective pch (dBm):    0.00
+  actual pch out (dBm):   0.06
+  output VOA (dB):        0.00
+Roadm roadm Site C
+  effective loss (dB):     20.00
+  reference pch out (dBm): -20.00
+  actual pch out (dBm):    -20.00
+Edfa booster C
+  type_variety:           std_medium_gain
+  effective gain(dB):     20.00
+  (before att_in and before output VOA)
+  noise figure (dB):      6.58
+  (including att_in)
+  pad att_in (dB):        0.00
+  Power In (dBm):         -0.18
+  Power Out (dBm):        19.83
+  Delta_P (dB):           0.00
+  target pch (dBm):       0.00
+  effective pch (dBm):    0.00
+  actual pch out (dBm):   0.01
+  output VOA (dB):        0.00
+Fiber          Span6
+  type_variety:                SSMF
+  length (km):                 80.00
+  pad att_in (dB):             0.00
+  total loss (dB):             16.00
+  (includes conn loss (dB) in: 0.00 out: 0.00)
+  (conn loss out includes EOL margin defined in eqpt_config.json)
+  reference pch out (dBm):     -16.00
+  actual pch out (dBm):        -15.99
+Edfa Edfa6
+  type_variety:           test_fixed_gain
+  effective gain(dB):     16.00
+  (before att_in and before output VOA)
+  noise figure (dB):      9.00
+  (including att_in)
+  pad att_in (dB):        4.00
+  Power In (dBm):         3.83
+  Power Out (dBm):        19.84
+  Delta_P (dB):           0.00
+  target pch (dBm):       0.00
+  effective pch (dBm):    0.00
+  actual pch out (dBm):   0.02
+  output VOA (dB):        0.00
+Fiber          Span7
+  type_variety:                SSMF
+  length (km):                 80.00
+  pad att_in (dB):             0.00
+  total loss (dB):             16.00
+  (includes conn loss (dB) in: 0.00 out: 0.00)
+  (conn loss out includes EOL margin defined in eqpt_config.json)
+  reference pch out (dBm):     -16.00
+  actual pch out (dBm):        -15.98
+Edfa Edfa7
+  type_variety:           test
+  effective gain(dB):     16.00
+  (before att_in and before output VOA)
+  noise figure (dB):      8.86
+  (including att_in)
+  pad att_in (dB):        0.00
+  Power In (dBm):         3.84
+  Power Out (dBm):        19.85
+  Delta_P (dB):           0.00
+  target pch (dBm):       0.00
+  effective pch (dBm):    0.00
+  actual pch out (dBm):   0.03
+  output VOA (dB):        0.00
+Fiber          Span8
+  type_variety:                SSMF
+  length (km):                 80.00
+  pad att_in (dB):             0.00
+  total loss (dB):             16.00
+  (includes conn loss (dB) in: 0.00 out: 0.00)
+  (conn loss out includes EOL margin defined in eqpt_config.json)
+  reference pch out (dBm):     -16.00
+  actual pch out (dBm):        -15.97
+Edfa Edfa8
+  type_variety:           test_fixed_gain
+  effective gain(dB):     16.00
+  (before att_in and before output VOA)
+  noise figure (dB):      9.00
+  (including att_in)
+  pad att_in (dB):        4.00
+  Power In (dBm):         3.85
+  Power Out (dBm):        19.86
+  Delta_P (dB):           0.00
+  target pch (dBm):       0.00
+  effective pch (dBm):    0.00
+  actual pch out (dBm):   0.04
+  output VOA (dB):        0.00
+Fiber          Span9
+  type_variety:                SSMF
+  length (km):                 80.00
+  pad att_in (dB):             0.00
+  total loss (dB):             16.00
+  (includes conn loss (dB) in: 0.00 out: 0.00)
+  (conn loss out includes EOL margin defined in eqpt_config.json)
+  reference pch out (dBm):     -16.00
+  actual pch out (dBm):        -15.96
+Edfa Edfa9
+  type_variety:           test
+  effective gain(dB):     16.00
+  (before att_in and before output VOA)
+  noise figure (dB):      8.86
+  (including att_in)
+  pad att_in (dB):        0.00
+  Power In (dBm):         3.86
+  Power Out (dBm):        19.87
+  Delta_P (dB):           0.00
+  target pch (dBm):       0.00
+  effective pch (dBm):    0.00
+  actual pch out (dBm):   0.05
+  output VOA (dB):        0.00
+Fiber          Span10
+  type_variety:                SSMF
+  length (km):                 80.00
+  pad att_in (dB):             0.00
+  total loss (dB):             16.00
+  (includes conn loss (dB) in: 0.00 out: 0.00)
+  (conn loss out includes EOL margin defined in eqpt_config.json)
+  reference pch out (dBm):     -16.00
+  actual pch out (dBm):        -15.95
+Edfa Edfa10
+  type_variety:           test_fixed_gain
+  effective gain(dB):     16.00
+  (before att_in and before output VOA)
+  noise figure (dB):      9.00
+  (including att_in)
+  pad att_in (dB):        4.00
+  Power In (dBm):         3.87
+  Power Out (dBm):        19.88
+  Delta_P (dB):           0.00
+  target pch (dBm):       0.00
+  effective pch (dBm):    0.00
+  actual pch out (dBm):   0.06
+  output VOA (dB):        0.00
+Roadm roadm Site D
+  effective loss (dB):     20.00
+  reference pch out (dBm): -20.00
+  actual pch out (dBm):    -20.00
+Edfa booster D
+  type_variety:           std_medium_gain
+  effective gain(dB):     20.00
+  (before att_in and before output VOA)
+  noise figure (dB):      6.58
+  (including att_in)
+  pad att_in (dB):        0.00
+  Power In (dBm):         -0.18
+  Power Out (dBm):        19.83
+  Delta_P (dB):           0.00
+  target pch (dBm):       0.00
+  effective pch (dBm):    0.00
+  actual pch out (dBm):   0.01
+  output VOA (dB):        0.00
+Fiber          Span11
+  type_variety:                SSMF
+  length (km):                 80.00
+  pad att_in (dB):             0.00
+  total loss (dB):             16.00
+  (includes conn loss (dB) in: 0.00 out: 0.00)
+  (conn loss out includes EOL margin defined in eqpt_config.json)
+  reference pch out (dBm):     -16.00
+  actual pch out (dBm):        -15.99
+Edfa Edfa11
+  type_variety:           test
+  effective gain(dB):     16.00
+  (before att_in and before output VOA)
+  noise figure (dB):      8.86
+  (including att_in)
+  pad att_in (dB):        0.00
+  Power In (dBm):         3.83
+  Power Out (dBm):        19.84
+  Delta_P (dB):           0.00
+  target pch (dBm):       0.00
+  effective pch (dBm):    0.00
+  actual pch out (dBm):   0.02
+  output VOA (dB):        0.00
+Fiber          Span12
+  type_variety:                SSMF
+  length (km):                 80.00
+  pad att_in (dB):             0.00
+  total loss (dB):             16.00
+  (includes conn loss (dB) in: 0.00 out: 0.00)
+  (conn loss out includes EOL margin defined in eqpt_config.json)
+  reference pch out (dBm):     -16.00
+  actual pch out (dBm):        -15.98
+Edfa Edfa12
+  type_variety:           test_fixed_gain
+  effective gain(dB):     16.00
+  (before att_in and before output VOA)
+  noise figure (dB):      9.00
+  (including att_in)
+  pad att_in (dB):        4.00
+  Power In (dBm):         3.84
+  Power Out (dBm):        19.85
+  Delta_P (dB):           0.00
+  target pch (dBm):       0.00
+  effective pch (dBm):    0.00
+  actual pch out (dBm):   0.03
+  output VOA (dB):        0.00
+Roadm roadm Site E
+  effective loss (dB):     20.00
+  reference pch out (dBm): -20.00
+  actual pch out (dBm):    -20.00
+Edfa booster E
+  type_variety:           std_medium_gain
+  effective gain(dB):     20.00
+  (before att_in and before output VOA)
+  noise figure (dB):      6.58
+  (including att_in)
+  pad att_in (dB):        0.00
+  Power In (dBm):         -0.18
+  Power Out (dBm):        19.83
+  Delta_P (dB):           0.00
+  target pch (dBm):       0.00
+  effective pch (dBm):    0.00
+  actual pch out (dBm):   0.01
+  output VOA (dB):        0.00
+Fiber          Span13
+  type_variety:                SSMF
+  length (km):                 80.00
+  pad att_in (dB):             0.00
+  total loss (dB):             16.00
+  (includes conn loss (dB) in: 0.00 out: 0.00)
+  (conn loss out includes EOL margin defined in eqpt_config.json)
+  reference pch out (dBm):     -16.00
+  actual pch out (dBm):        -15.99
+Edfa Edfa13
+  type_variety:           test
+  effective gain(dB):     16.00
+  (before att_in and before output VOA)
+  noise figure (dB):      8.86
+  (including att_in)
+  pad att_in (dB):        0.00
+  Power In (dBm):         3.83
+  Power Out (dBm):        19.84
+  Delta_P (dB):           0.00
+  target pch (dBm):       0.00
+  effective pch (dBm):    0.00
+  actual pch out (dBm):   0.02
+  output VOA (dB):        0.00
+Fiber          Span14
+  type_variety:                SSMF
+  length (km):                 80.00
+  pad att_in (dB):             0.00
+  total loss (dB):             16.00
+  (includes conn loss (dB) in: 0.00 out: 0.00)
+  (conn loss out includes EOL margin defined in eqpt_config.json)
+  reference pch out (dBm):     -16.00
+  actual pch out (dBm):        -15.98
+Edfa Edfa14
+  type_variety:           test_fixed_gain
+  effective gain(dB):     16.00
+  (before att_in and before output VOA)
+  noise figure (dB):      9.00
+  (including att_in)
+  pad att_in (dB):        4.00
+  Power In (dBm):         3.84
+  Power Out (dBm):        19.85
+  Delta_P (dB):           0.00
+  target pch (dBm):       0.00
+  effective pch (dBm):    0.00
+  actual pch out (dBm):   0.03
+  output VOA (dB):        0.00
+Fiber          Span15
+  type_variety:                SSMF
+  length (km):                 80.00
+  pad att_in (dB):             0.00
+  total loss (dB):             16.00
+  (includes conn loss (dB) in: 0.00 out: 0.00)
+  (conn loss out includes EOL margin defined in eqpt_config.json)
+  reference pch out (dBm):     -16.00
+  actual pch out (dBm):        -15.97
+Edfa Edfa15
+  type_variety:           test
+  effective gain(dB):     16.00
+  (before att_in and before output VOA)
+  noise figure (dB):      8.86
+  (including att_in)
+  pad att_in (dB):        0.00
+  Power In (dBm):         3.85
+  Power Out (dBm):        19.86
+  Delta_P (dB):           0.00
+  target pch (dBm):       0.00
+  effective pch (dBm):    0.00
+  actual pch out (dBm):   0.04
+  output VOA (dB):        0.00
+Roadm roadm Site B
+  effective loss (dB):     20.00
+  reference pch out (dBm): -20.00
+  actual pch out (dBm):    -20.00
+Transceiver Site_B
+  GSNR (0.1nm, dB):          17.85
+  GSNR (signal bw, dB):      13.77
+  OSNR ASE (0.1nm, dB):      19.70
+  OSNR ASE (signal bw, dB):  15.62
+  CD (ps/nm):                20040.00
+  PMD (ps):                  1.39
+  PDL (dB):                  0.00
+
+Transmission result for input power = 0.00 dBm:
+  Final GSNR (0.1 nm): 17.85 dB
+
+(No source node specified: picked Site_A)
+
+(No destination node specified: picked Site_B)

tests/invocation/transmission_saturated

@@ -252,8 +252,9 @@ Transceiver trx Lannion_CAS
   PMD (ps):                  0.00
   PDL (dB):                  0.00
 Roadm roadm Lannion_CAS
-  effective loss (dB):  23.00
+  effective loss (dB):     23.00
-  pch out (dBm):        -20.00
+  reference pch out (dBm): -20.00
+  actual pch out (dBm):    -20.00
 Edfa east edfa in Lannion_CAS to Corlay
   type_variety:           test
   effective gain(dB):     21.18
@@ -266,6 +267,7 @@ Edfa east edfa in Lannion_CAS to Corlay
   Delta_P (dB):           0.00
   target pch (dBm):       3.00
   effective pch (dBm):    1.18
+  actual pch out (dBm):   1.18
   output VOA (dB):        0.00
 Fiber          fiber (Lannion_CAS → Corlay)-F061
   type_variety:                SSMF
@@ -274,7 +276,8 @@ Fiber          fiber (Lannion_CAS → Corlay)-F061
   total loss (dB):             4.00
   (includes conn loss (dB) in: 0.00 out: 0.00)
   (conn loss out includes EOL margin defined in eqpt_config.json)
-  pch out (dBm): -2.82
+  reference pch out (dBm):     -2.82
+  actual pch out (dBm):        -2.81
 Fused west fused spans in Corlay
   loss (dB): 1.00
 Fiber          fiber (Corlay → Loudeac)-F010
@@ -284,7 +287,8 @@ Fiber          fiber (Corlay → Loudeac)-F010
   total loss (dB):             10.00
   (includes conn loss (dB) in: 0.00 out: 0.00)
   (conn loss out includes EOL margin defined in eqpt_config.json)
-  pch out (dBm): -13.82
+  reference pch out (dBm):     -13.82
+  actual pch out (dBm):        -13.81
 Fused west fused spans in Loudeac
   loss (dB): 1.00
 Fiber          fiber (Loudeac → Lorient_KMA)-F054
@@ -294,23 +298,26 @@ Fiber          fiber (Loudeac → Lorient_KMA)-F054
   total loss (dB):             12.00
   (includes conn loss (dB) in: 0.00 out: 0.00)
   (conn loss out includes EOL margin defined in eqpt_config.json)
-  pch out (dBm): -26.82
+  reference pch out (dBm):     -26.82
+  actual pch out (dBm):        -26.81
 Edfa west edfa in Lorient_KMA to Loudeac
   type_variety:           test
-  effective gain(dB):     28.00
+  effective gain(dB):     27.99
   (before att_in and before output VOA)
   noise figure (dB):      5.76
   (including att_in)
   pad att_in (dB):        0.00
   Power In (dBm):         -6.99
-  Power Out (dBm):        21.04
+  Power Out (dBm):        21.03
   Delta_P (dB):           -1.82
   target pch (dBm):       1.18
-  effective pch (dBm):    1.18
+  effective pch (dBm):    1.17
+  actual pch out (dBm):   1.21
   output VOA (dB):        0.00
 Roadm roadm Lorient_KMA
-  effective loss (dB):  21.18
+  effective loss (dB):     21.17
-  pch out (dBm):        -20.00
+  reference pch out (dBm): -20.00
+  actual pch out (dBm):    -20.00
 Transceiver trx Lorient_KMA
   GSNR (0.1nm, dB):          23.94
   GSNR (signal bw, dB):      19.85

tests/requirements.txt

@@ -0,0 +1,6 @@
+build>=0.10.0,<1
+pytest>=6.2.5,<7
+pandas>=1.3.5,<2
+
+# flake v6 killed the --diff option
+flake8>=5.0.4,<6

tests/test_amplifier.py

@@ -6,7 +6,7 @@
 from numpy import zeros, array
 from gnpy.core.elements import Transceiver, Edfa
 from gnpy.core.utils import automatic_fmax, lin2db, db2lin, merge_amplifier_restrictions
-from gnpy.core.info import create_input_spectral_information, Pref
+from gnpy.core.info import create_input_spectral_information, ReferenceCarrier
 from gnpy.core.network import build_network
 from gnpy.tools.json_io import load_network, load_equipment
 from pathlib import Path
@@ -73,7 +73,9 @@ def si(nch_and_spacing, bw):
     nb_channel, spacing = nch_and_spacing
     f_min = 191.3e12
     f_max = automatic_fmax(f_min, spacing, nb_channel)
-    return create_input_spectral_information(f_min, f_max, 0.15, bw, 1e-3, spacing)
+    return create_input_spectral_information(f_min=f_min, f_max=f_max, roll_off=0.15, baud_rate=bw, power=1e-3,
+                                             spacing=spacing, tx_osnr=40.0,
+                                             ref_carrier=ReferenceCarrier(baud_rate=32e9, slot_width=50e9))
 
 
 @pytest.mark.parametrize("gain, nf_expected", [(10, 15), (15, 10), (25, 5.8)])
@@ -84,7 +86,7 @@ def test_variable_gain_nf(gain, nf_expected, setup_edfa_variable_gain, si):
     si.nli /= db2lin(gain)
     si.ase /= db2lin(gain)
     edfa.operational.gain_target = gain
-    si.pref = si.pref._replace(p_span0=0, p_spani=-gain, neq_ch=lin2db(si.number_of_channels))
+    si.pref = si.pref._replace(p_span0=0, p_spani=-gain)
     edfa.interpol_params(si)
     result = edfa.nf
     assert pytest.approx(nf_expected, abs=0.01) == result[0]
@@ -98,7 +100,7 @@ def test_fixed_gain_nf(gain, nf_expected, setup_edfa_fixed_gain, si):
     si.nli /= db2lin(gain)
     si.ase /= db2lin(gain)
     edfa.operational.gain_target = gain
-    si.pref = si.pref._replace(p_span0=0, p_spani=-gain, neq_ch=lin2db(si.number_of_channels))
+    si.pref = si.pref._replace(p_span0=0, p_spani=-gain)
     edfa.interpol_params(si)
     assert pytest.approx(nf_expected, abs=0.01) == edfa.nf[0]
 
@@ -123,7 +125,7 @@ def test_compare_nf_models(gain, setup_edfa_variable_gain, si):
     si.ase /= db2lin(gain)
     edfa.operational.gain_target = gain
     # edfa is variable gain type
-    si.pref = si.pref._replace(p_span0=0, p_spani=-gain, neq_ch=lin2db(si.number_of_channels))
+    si.pref = si.pref._replace(p_span0=0, p_spani=-gain)
     edfa.interpol_params(si)
     nf_model = edfa.nf[0]
 
@@ -178,7 +180,7 @@ def test_ase_noise(gain, si, setup_trx, bw):
     si = span(si)
     print(span)
 
-    si.pref = si.pref._replace(p_span0=0, p_spani=-gain, neq_ch=lin2db(si.number_of_channels))
+    si.pref = si.pref._replace(p_span0=0, p_spani=-gain)
     edfa.interpol_params(si)
     nf = edfa.nf
     print('nf', nf)

tests/test_equalization.py

@@ -0,0 +1,588 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+# @Author: Esther Le Rouzic
+# @Date:   2019-05-22
+"""
+@author: esther.lerouzic
+checks that new equalization option give the same output as old one:
+
+"""
+
+from pathlib import Path
+import pytest
+from numpy.testing import assert_allclose, assert_array_equal, assert_raises
+from numpy import array
+
+from gnpy.core.utils import lin2db, automatic_nch, dbm2watt, power_dbm_to_psd_mw_ghz, watt2dbm, psd2powerdbm
+from gnpy.core.network import build_network
+from gnpy.core.elements import Roadm
+from gnpy.core.info import create_input_spectral_information, Pref, create_arbitrary_spectral_information, \
+    ReferenceCarrier
+from gnpy.core.equipment import trx_mode_params
+from gnpy.core.exceptions import ConfigurationError
+from gnpy.tools.json_io import network_from_json, load_equipment, load_network, _spectrum_from_json, load_json
+from gnpy.topology.request import PathRequest, compute_constrained_path, propagate
+
+
+TEST_DIR = Path(__file__).parent
+EQPT_FILENAME = TEST_DIR / 'data/eqpt_config.json'
+NETWORK_FILENAME = TEST_DIR / 'data/testTopology_expected.json'
+
+
+@pytest.mark.parametrize('degree, equalization_type, target, expected_pch_out_dbm, expected_si',
+    [('east edfa in Lannion_CAS to Morlaix', 'target_pch_out_db', -20, -20, [-20, -20, -20, -20, -20]),
+     ('east edfa in Lannion_CAS to Morlaix', 'target_psd_out_mWperGHz', 5e-4, -17.9588,
+      [-17.9588, -16.7778, -14.9485, -16.7778, -17.9588]),
+     ('east edfa in Lannion_CAS to Morlaix', 'target_out_mWperSlotWidth', 3e-4, -18.2390,
+      [-19.4885, -18.2390, -16.4781, -18.2390, -19.4885]),
+     ('east edfa in Lannion_CAS to Corlay', 'target_pch_out_db', -20, -16, [-16, -16, -16, -16, -16]),
+     ('east edfa in Lannion_CAS to Corlay', 'target_psd_out_mWperGHz', 5e-4, -16, [-16, -16, -16, -16, -16]),
+     ('east edfa in Lannion_CAS to Corlay', 'target_out_mWperSlotWidth', 5e-4, -16, [-16, -16, -16, -16, -16]),
+     ('east edfa in Lannion_CAS to Stbrieuc', 'target_pch_out_db', -20, -17.16699,
+      [-17.16698771, -15.98599459, -14.15668776, -15.98599459, -17.16698771]),
+     ('east edfa in Lannion_CAS to Stbrieuc', 'target_psd_out_mWperGHz', 5e-4, -17.16699,
+      [-17.16698771, -15.98599459, -14.15668776, -15.98599459, -17.16698771]),
+     ('east edfa in Lannion_CAS to Stbrieuc', 'target_out_mWperSlotWidth', 5e-4, -17.16699,
+      [-17.16698771, -15.98599459, -14.15668776, -15.98599459, -17.16698771])])
+@pytest.mark.parametrize('delta_pdb_per_channel', [[0, 0, 0, 0, 0], [1, 3, 0, -5, 0]])
+def test_equalization_combination_degree(delta_pdb_per_channel, degree, equalization_type, target,
+                                         expected_pch_out_dbm, expected_si):
+    """Check that ROADM correctly computes power of thr reference channel based on different
+    combination of equalization for ROADM and per degree
+    """
+
+    roadm_config = {
+        "uid": "roadm Lannion_CAS",
+        "params": {
+            "per_degree_pch_out_db": {
+                "east edfa in Lannion_CAS to Corlay": -16
+            },
+            "per_degree_psd_out_mWperGHz": {
+                "east edfa in Lannion_CAS to Stbrieuc": 6e-4
+            },
+            equalization_type: target,
+            "add_drop_osnr": 38,
+            "pmd": 0,
+            "pdl": 0,
+            "restrictions": {
+                "preamp_variety_list": [],
+                "booster_variety_list": []
+            }
+        }
+    }
+    roadm = Roadm(**roadm_config)
+    frequency = 191e12 + array([0, 50e9, 150e9, 225e9, 275e9])
+    slot_width = array([37.5e9, 50e9, 75e9, 50e9, 37.5e9])
+    baud_rate = array([32e9, 42e9, 64e9, 42e9, 32e9])
+    signal = dbm2watt(array([-20.0, -18.0, -22.0, -25.0, -16.0]))
+    ref_carrier = ReferenceCarrier(baud_rate=32e9, slot_width=50e9)
+    pref = Pref(p_span0=0, p_spani=0, ref_carrier=ref_carrier)
+    si = create_arbitrary_spectral_information(frequency=frequency, slot_width=slot_width,
+                                               signal=signal, baud_rate=baud_rate, roll_off=0.15,
+                                               delta_pdb_per_channel=delta_pdb_per_channel,
+                                               tx_osnr=None, ref_power=pref)
+    to_json_before_propagation = {
+        'uid': 'roadm Lannion_CAS',
+        'type': 'Roadm',
+        'params': {
+            equalization_type: target,
+            'restrictions': {'preamp_variety_list': [], 'booster_variety_list': []},
+            'per_degree_pch_out_db': {
+                'east edfa in Lannion_CAS to Corlay': -16},
+            "per_degree_psd_out_mWperGHz": {
+                "east edfa in Lannion_CAS to Stbrieuc": 6e-4
+            }
+        },
+        'metadata': {'location': {'latitude': 0, 'longitude': 0, 'city': None, 'region': None}}
+    }
+    assert roadm.to_json == to_json_before_propagation
+    si = roadm(si, degree)
+    assert roadm.ref_pch_out_dbm == pytest.approx(expected_pch_out_dbm, rel=1e-4)
+    assert_allclose(expected_si, roadm.get_per_degree_power(degree, spectral_info=si), rtol=1e-3)
+
+
+@pytest.mark.parametrize('equalization_type', ["target_psd_out_mWperGHz", "target_out_mWperSlotWidth"])
+def test_wrong_element_config(equalization_type):
+    """Check that 2 equalization correcty raise a config error
+    """
+    roadm_config = {
+        "uid": "roadm Brest_KLA",
+        "params": {
+            "per_degree_pch_out_db": {},
+            "target_pch_out_db": -20,
+            equalization_type: 3.125e-4,
+            "add_drop_osnr": 38,
+            "pmd": 0,
+            "pdl": 0,
+            "restrictions": {
+                "preamp_variety_list": [],
+                "booster_variety_list": []
+            }
+        },
+        "metadata": {
+            "location": {
+                "city": "Brest_KLA",
+                "region": "RLD",
+                "latitude": 4.0,
+                "longitude": 0.0
+            }
+        }
+    }
+    with pytest.raises(ConfigurationError):
+        _ = Roadm(**roadm_config)
+
+
+def test_merge_equalization():
+    """Check that if equalization is not defined default one is correctly take and
+    else that it is not overwritten
+    """
+    json_data = {
+        "elements": [{
+            "uid": "roadm Brest_KLA",
+            "type": "Roadm"}],
+        "connections": []
+    }
+    equipment = load_equipment(EQPT_FILENAME)
+    network = network_from_json(json_data, equipment)
+    roadm = [n for n in network.nodes()][0]
+    assert roadm.target_pch_out_dbm == -20
+    delattr(equipment['Roadm']['default'], 'target_pch_out_db')
+    setattr(equipment['Roadm']['default'], 'target_psd_out_mWperGHz', power_dbm_to_psd_mw_ghz(-20, 32e9))
+    # json_data is changed (type is popped from json_data with network_from_json_function). Create a new one:
+    json_data = {
+        "elements": [{
+            "uid": "roadm Brest_KLA",
+            "type": "Roadm"}],
+        "connections": []
+    }
+    network = network_from_json(json_data, equipment)
+    roadm = [n for n in network.nodes()][0]
+    assert roadm.target_pch_out_dbm is None
+    assert roadm.target_psd_out_mWperGHz == 3.125e-4
+    assert roadm.target_out_mWperSlotWidth is None
+    json_data = {
+        "elements": [{
+            "uid": "roadm Brest_KLA",
+            "type": "Roadm",
+            "params": {"target_pch_out_db": -18}}],
+        "connections": []
+    }
+    network = network_from_json(json_data, equipment)
+    roadm = [n for n in network.nodes()][0]
+    assert roadm.target_pch_out_dbm == -18
+    assert roadm.target_psd_out_mWperGHz is None
+    assert roadm.target_out_mWperSlotWidth is None
+    json_data = {
+        "elements": [{
+            "uid": "roadm Brest_KLA",
+            "type": "Roadm",
+            "params": {"target_psd_out_mWperGHz": 5e-4}}],
+        "connections": []
+    }
+    network = network_from_json(json_data, equipment)
+    roadm = [n for n in network.nodes()][0]
+    assert roadm.target_pch_out_dbm is None
+    assert roadm.target_psd_out_mWperGHz == 5e-4
+    assert roadm.target_out_mWperSlotWidth is None
+    json_data = {
+        "elements": [{
+            "uid": "roadm Brest_KLA",
+            "type": "Roadm",
+            "params": {"target_out_mWperSlotWidth": 3e-4}}],
+        "connections": []
+    }
+    network = network_from_json(json_data, equipment)
+    roadm = [n for n in network.nodes()][0]
+    assert roadm.target_pch_out_dbm is None
+    assert roadm.target_psd_out_mWperGHz is None
+    assert roadm.target_out_mWperSlotWidth == 3e-4
+
+
+@pytest.mark.parametrize('target_out, delta_pdb_per_channel, correction',
+                         [(-20, [0, 1, 3, 0.5, -2], [0, 0, 5, 5.5, 0]),
+                          (-20, [0, 0, 0, 0, 0], [0, 0, 2, 5, 0]),
+                          (-20, [-2, -2, -2, -2, -2], [0, 0, 0, 3, 0]),
+                          (-20, [0, 2, -2, -5, 4], [0, 0, 0, 0, 0]),
+                          (-25.5, [0, 1, 3, 0.5, -2], [0, 0, 0, 0, 0]), ])
+def test_low_input_power(target_out, delta_pdb_per_channel, correction):
+    """check that ROADM correctly equalizes on small examples, assumes p_span_0 = 0
+    case of power equalisation
+    """
+    frequency = 191e12 + array([0, 50e9, 150e9, 225e9, 275e9])
+    slot_width = array([37.5e9, 50e9, 75e9, 50e9, 37.5e9])
+    baud_rate = array([32e9, 42e9, 64e9, 42e9, 32e9])
+    signal = dbm2watt(array([-20.0, -18.0, -22.0, -25.0, -16.0]))
+    target = target_out + array(delta_pdb_per_channel)
+    ref_carrier = ReferenceCarrier(baud_rate=32e9, slot_width=50e9)
+    pref = Pref(p_span0=0, p_spani=-20, ref_carrier=ref_carrier)
+    si = create_arbitrary_spectral_information(frequency=frequency, slot_width=slot_width,
+                                               signal=signal, baud_rate=baud_rate, roll_off=0.15,
+                                               delta_pdb_per_channel=delta_pdb_per_channel,
+                                               tx_osnr=None, ref_power=pref)
+    roadm_config = {
+        "uid": "roadm Brest_KLA",
+        "params": {
+            "per_degree_pch_out_db": {},
+            "target_pch_out_db": target_out,
+            "add_drop_osnr": 38,
+            "pmd": 0,
+            "pdl": 0,
+            "restrictions": {
+                "preamp_variety_list": [],
+                "booster_variety_list": []
+            }
+        },
+        "metadata": {
+            "location": {
+                "city": "Brest_KLA",
+                "region": "RLD",
+                "latitude": 4.0,
+                "longitude": 0.0
+            }
+        }
+    }
+    roadm = Roadm(**roadm_config)
+    si = roadm(si, 'toto')
+    assert_allclose(watt2dbm(si.signal), target - correction, rtol=1e-5)
+    # in other words check that if target is below input power, target is applied else power is unchanged
+    assert_allclose((watt2dbm(signal) >= target) * target + (watt2dbm(signal) < target) * watt2dbm(signal),
+                    watt2dbm(si.signal), rtol=1e-5)
+
+
+@pytest.mark.parametrize('target_out, delta_pdb_per_channel, correction',
+                         [(3.125e-4,
+                           [0, 0, 0, 0, 0],
+                           [0, 0, 2 + lin2db(64 / 32), 5 + lin2db(42 / 32), 0]),
+                          (3.125e-4,
+                           [1, 3, 0, -5, 0],
+                           [1, 1 + lin2db(42 / 32), 2 + lin2db(64 / 32), 0 + lin2db(42 / 32), 0]), ])
+def test_2low_input_power(target_out, delta_pdb_per_channel, correction):
+    """check that ROADM correctly equalizes on small examples, assumes p_span_0 = 0
+    case of PSD equalisation
+    """
+    frequency = 191e12 + array([0, 50e9, 150e9, 225e9, 275e9])
+    slot_width = array([37.5e9, 50e9, 75e9, 50e9, 37.5e9])
+    baud_rate = array([32e9, 42e9, 64e9, 42e9, 32e9])
+    signal = dbm2watt(array([-20.0, -18.0, -22.0, -25.0, -16.0]))
+    target = psd2powerdbm(target_out, baud_rate) + array(delta_pdb_per_channel)
+    ref_carrier = ReferenceCarrier(baud_rate=32e9, slot_width=50e9)
+    pref = Pref(p_span0=0, p_spani=-20, ref_carrier=ref_carrier)
+    si = create_arbitrary_spectral_information(frequency=frequency, slot_width=slot_width,
+                                               signal=signal, baud_rate=baud_rate, roll_off=0.15,
+                                               delta_pdb_per_channel=delta_pdb_per_channel,
+                                               tx_osnr=None, ref_power=pref)
+    roadm_config = {
+        "uid": "roadm Brest_KLA",
+        "params": {
+            "per_degree_pch_out_db": {},
+            "target_psd_out_mWperGHz": target_out,
+            "add_drop_osnr": 38,
+            "pmd": 0,
+            "pdl": 0,
+            "restrictions": {
+                "preamp_variety_list": [],
+                "booster_variety_list": []
+            }
+        },
+        "metadata": {
+            "location": {
+                "city": "Brest_KLA",
+                "region": "RLD",
+                "latitude": 4.0,
+                "longitude": 0.0
+            }
+        }
+    }
+    roadm = Roadm(**roadm_config)
+    si = roadm(si, 'toto')
+    assert_allclose(watt2dbm(si.signal), target - correction, rtol=1e-5)
+
+
+def net_setup(equipment):
+    """ common setup for tests: builds network, equipment and oms only once
+    """
+    network = load_network(NETWORK_FILENAME, equipment)
+    spectrum = equipment['SI']['default']
+    p_db = spectrum.power_dbm
+    p_total_db = p_db + lin2db(automatic_nch(spectrum.f_min, spectrum.f_max, spectrum.spacing))
+    build_network(network, equipment, p_db, p_total_db)
+    return network
+
+
+def create_voyager_req(equipment, source, dest, bidir, nodes_list, loose_list, mode, spacing, power_dbm):
+    """ create the usual request list according to parameters
+    """
+    params = {'request_id': 'test_request',
+              'source': source,
+              'bidir': bidir,
+              'destination': dest,
+              'trx_type': 'Voyager',
+              'trx_mode': mode,
+              'format': mode,
+              'spacing': spacing,
+              'nodes_list': nodes_list,
+              'loose_list': loose_list,
+              'path_bandwidth': 100.0e9,
+              'effective_freq_slot': None}
+    trx_params = trx_mode_params(equipment, params['trx_type'], params['trx_mode'], True)
+    params.update(trx_params)
+    params['power'] = dbm2watt(power_dbm) if power_dbm else dbm2watt(equipment['SI']['default'].power_dbm)
+    f_min = params['f_min']
+    f_max_from_si = params['f_max']
+    params['nb_channel'] = automatic_nch(f_min, f_max_from_si, params['spacing'])
+    return PathRequest(**params)
+
+
+@pytest.mark.parametrize('power_dbm', [0, 1, -2, None])
+@pytest.mark.parametrize('mode, slot_width', (['mode 1', 50e9], ['mode 2', 75e9]))
+def test_initial_spectrum(mode, slot_width, power_dbm):
+    """ checks that propagation using the user defined spectrum identical to SI, gives same result as SI
+    """
+    # first propagate without any req.initial_spectrum attribute
+    equipment = load_equipment(EQPT_FILENAME)
+    req = create_voyager_req(equipment, 'trx Brest_KLA', 'trx Vannes_KBE', False, ['trx Vannes_KBE'], ['STRICT'],
+                             mode, slot_width, power_dbm)
+    network = net_setup(equipment)
+    path = compute_constrained_path(network, req)
+    infos_expected = propagate(path, req, equipment)
+    # then creates req.initial_spectrum attribute exactly corresponding to -spectrum option files
+    temp = [{
+        "f_min": 191.35e12 + slot_width,
+        "f_max": 196.15e12 - slot_width,
+        "baud_rate": req.baud_rate,
+        "slot_width": slot_width,
+        "roll_off": 0.15,
+        "tx_osnr": 40
+    }]
+    req.initial_spectrum = _spectrum_from_json(temp)
+    infos_actual = propagate(path, req, equipment)
+    print(infos_actual.frequency[0], infos_actual.frequency[-1])
+    print(infos_expected.frequency[0], infos_expected.frequency[-1])
+
+    assert_array_equal(infos_expected.frequency, infos_actual.frequency)
+    assert_array_equal(infos_expected.baud_rate, infos_actual.baud_rate)
+    assert_array_equal(infos_expected.slot_width, infos_actual.slot_width)
+    assert_array_equal(infos_expected.signal, infos_actual.signal)
+    assert_array_equal(infos_expected.nli, infos_actual.nli)
+    assert_array_equal(infos_expected.ase, infos_actual.ase)
+    assert_array_equal(infos_expected.roll_off, infos_actual.roll_off)
+    assert_array_equal(infos_expected.chromatic_dispersion, infos_actual.chromatic_dispersion)
+    assert_array_equal(infos_expected.pmd, infos_actual.pmd)
+    assert_array_equal(infos_expected.channel_number, infos_actual.channel_number)
+    assert_array_equal(infos_expected.number_of_channels, infos_actual.number_of_channels)
+
+
+def test_initial_spectrum_not_identical():
+    """ checks that user defined spectrum overrides spectrum defined in SI
+    """
+    # first propagate without any req.initial_spectrum attribute
+    equipment = load_equipment(EQPT_FILENAME)
+    req = create_voyager_req(equipment, 'trx Brest_KLA', 'trx Vannes_KBE', False, ['trx Vannes_KBE'], ['STRICT'],
+                             'mode 1', 50e9, 0)
+    network = net_setup(equipment)
+    path = compute_constrained_path(network, req)
+    infos_expected = propagate(path, req, equipment)
+    # then creates req.initial_spectrum attribute exactly corresponding to -spectrum option files
+    temp = [{
+        "f_min": 191.4e12,     # align f_min , f_max on Voyager f_min, f_mix and not SI !
+        "f_max": 196.1e12,
+        "baud_rate": 40e9,
+        "slot_width": 62.5e9,
+        "roll_off": 0.15,
+        "tx_osnr": 40
+    }]
+    req.initial_spectrum = _spectrum_from_json(temp)
+    infos_actual = propagate(path, req, equipment)
+    assert_raises(AssertionError, assert_array_equal, infos_expected.frequency, infos_actual.frequency)
+    assert_raises(AssertionError, assert_array_equal, infos_expected.baud_rate, infos_actual.baud_rate)
+    assert_raises(AssertionError, assert_array_equal, infos_expected.slot_width, infos_actual.slot_width)
+    assert_raises(AssertionError, assert_array_equal, infos_expected.signal, infos_actual.signal)
+    assert_raises(AssertionError, assert_array_equal, infos_expected.nli, infos_actual.nli)
+    assert_raises(AssertionError, assert_array_equal, infos_expected.ase, infos_actual.ase)
+    assert_raises(AssertionError, assert_array_equal, infos_expected.channel_number, infos_actual.channel_number)
+    assert_raises(AssertionError, assert_array_equal, infos_expected.number_of_channels, infos_actual.number_of_channels)
+
+
+@pytest.mark.parametrize('equalization, target_value', [
+    ('target_out_mWperSlotWidth', power_dbm_to_psd_mw_ghz(-20, 50e9)),
+    ('target_psd_out_mWperGHz', power_dbm_to_psd_mw_ghz(-20, 32e9))])
+@pytest.mark.parametrize('power_dbm', [0, 2, -0.5])
+def test_target_psd_or_psw(power_dbm, equalization, target_value):
+    """ checks that if target_out_mWperSlotWidth or target_psd_out_mWperGHz is defined, it is used as equalization
+    and it gives same result if computed target is the same
+    """
+    equipment = load_equipment(EQPT_FILENAME)
+    network = net_setup(equipment)
+    req = create_voyager_req(equipment, 'trx Brest_KLA', 'trx Vannes_KBE', False, ['trx Vannes_KBE'], ['STRICT'],
+                             'mode 1', 50e9, power_dbm)
+    path = compute_constrained_path(network, req)
+    infos_expected = propagate(path, req, equipment)
+    # change default equalization to power spectral density
+    delattr(equipment['Roadm']['default'], 'target_pch_out_db')
+    setattr(equipment['Roadm']['default'], equalization, target_value)
+    # create a second instance with this roadm settings,
+    network2 = net_setup(equipment)
+    path2 = compute_constrained_path(network2, req)
+    infos_actual = propagate(path2, req, equipment)
+    # since baudrate is the same, resulting propagation should be the same as for power equalization
+    assert_array_equal(infos_expected.baud_rate, infos_actual.baud_rate)
+    assert_array_equal(infos_expected.slot_width, infos_actual.slot_width)
+    assert_array_equal(infos_expected.signal, infos_actual.signal)
+    assert_array_equal(infos_expected.nli, infos_actual.nli)
+    assert_array_equal(infos_expected.ase, infos_actual.ase)
+    assert_array_equal(infos_expected.roll_off, infos_actual.roll_off)
+    assert_array_equal(infos_expected.chromatic_dispersion, infos_actual.chromatic_dispersion)
+    assert_array_equal(infos_expected.pmd, infos_actual.pmd)
+    assert_array_equal(infos_expected.channel_number, infos_actual.channel_number)
+    assert_array_equal(infos_expected.number_of_channels, infos_actual.number_of_channels)
+
+
+def ref_network():
+    """ Create a network instance with a instance of propagated path
+    """
+    equipment = load_equipment(EQPT_FILENAME)
+    network = net_setup(equipment)
+    req0 = create_voyager_req(equipment, 'trx Brest_KLA', 'trx Vannes_KBE', False, ['trx Vannes_KBE'], ['STRICT'],
+                              'mode 1', 50e9, 0)
+    path0 = compute_constrained_path(network, req0)
+    _ = propagate(path0, req0, equipment)
+    return network
+
+
+@pytest.mark.parametrize('deltap', [0, +1.2, -0.5])
+def test_target_psd_out_mwperghz_deltap(deltap):
+    """ checks that if target_psd_out_mWperGHz is defined, delta_p of amps is correctly updated
+    Power over 1.2dBm saturate amp with this test: TODO add a test on this saturation
+    """
+    equipment = load_equipment(EQPT_FILENAME)
+    network = net_setup(equipment)
+    req = create_voyager_req(equipment, 'trx Brest_KLA', 'trx Vannes_KBE', False, ['trx Vannes_KBE'], ['STRICT'],
+                             'mode 1', 50e9, deltap)
+    temp = [{
+        "f_min": 191.35e12,     # align f_min , f_max on Voyager f_min, f_mix and not SI !
+        "f_max": 196.05e12,
+        "baud_rate": req.baud_rate,
+        "slot_width": 50e9,
+        "roll_off": 0.15,
+        "tx_osnr": 40
+    }]
+    req.initial_spectrum = _spectrum_from_json(temp)
+    path = compute_constrained_path(network, req)
+    _ = propagate(path, req, equipment)
+    # check that gain of booster is changed accordingly whereas gain of preamp and ila is not (no saturation case)
+    boosters = ['east edfa in Brest_KLA to Quimper', 'east edfa in Lorient_KMA to Vannes_KBE']
+    ila_preamps = ['east edfa in Quimper to Lorient_KMA', 'west edfa in Lorient_KMA to Quimper',
+                   'west edfa in Vannes_KBE to Lorient_KMA']
+    for amp in boosters + ila_preamps:
+        expected_amp = next(n for n in ref_network() if n.uid == amp)
+        actual_amp = next(n for n in network.nodes() if n.uid == amp)
+        expected_gain = expected_amp.pout_db - expected_amp.pin_db
+        actual_gain = actual_amp.pout_db - actual_amp.pin_db
+        print(actual_amp)
+        if amp in boosters:
+            assert expected_gain + deltap == pytest.approx(actual_gain, rel=1e-3)
+        if amp in ila_preamps:
+            assert expected_gain == pytest.approx(actual_gain, rel=1e-3)
+
+
+@pytest.mark.parametrize('equalization', ['target_psd_out_mWperGHz', 'target_out_mWperSlotWidth'])
+@pytest.mark.parametrize('case', ['SI', 'nodes'])
+@pytest.mark.parametrize('deltap', [0, +2, -0.5])
+@pytest.mark.parametrize('target', [-20, -21, -18])
+@pytest.mark.parametrize('mode, slot_width', (['mode 1', 50e9], ['mode 2', 75e9]))
+def test_equalization(case, deltap, target, mode, slot_width, equalization):
+    """check that power target on roadm is correct for these cases; check on booster
+    - SI : target_pch_out_db / target_psd_out_mWperGHz
+    - node : target_pch_out_db / target_psd_out_mWperGHz
+    - per degree : target_pch_out_db / target_psd_out_mWperGHz
+    for these cases with and without power from user
+    """
+    equipment = load_equipment(EQPT_FILENAME)
+    setattr(equipment['Roadm']['default'], 'target_pch_out_db', target)
+    req = create_voyager_req(equipment, 'trx Brest_KLA', 'trx Rennes_STA', False,
+                             ['east edfa in Brest_KLA to Quimper', 'roadm Lannion_CAS', 'trx Rennes_STA'],
+                             ['STRICT', 'STRICT', 'STRICT'],
+                             mode, slot_width, deltap)
+    roadms = ['roadm Brest_KLA', 'roadm Lorient_KMA', 'roadm Lannion_CAS', 'roadm Rennes_STA']
+    # degree = {'roadm Brest_KLA': 'east edfa in Brest_KLA to Quimper',
+    #           'roadm Lorient_KMA': 'east edfa in Lorient_KMA to Loudeac'}
+    # boosters = ['east edfa in Brest_KLA to Quimper', 'east edfa in Lorient_KMA to Loudeac',
+    #             'east edfa in Lannion_CAS to Stbrieuc']
+    target_psd = power_dbm_to_psd_mw_ghz(target, 32e9)
+    ref = ReferenceCarrier(baud_rate=32e9, slot_width=50e9)
+    if case == 'SI':
+        delattr(equipment['Roadm']['default'], 'target_pch_out_db')
+        setattr(equipment['Roadm']['default'], equalization, target_psd)
+        network = net_setup(equipment)
+    elif case == 'nodes':
+        json_data = load_json(NETWORK_FILENAME)
+        for el in json_data['elements']:
+            if el['uid'] in roadms:
+                el['params'] = {equalization: target_psd}
+        network = network_from_json(json_data, equipment)
+        spectrum = equipment['SI']['default']
+        p_db = spectrum.power_dbm
+        p_total_db = p_db + lin2db(automatic_nch(spectrum.f_min, spectrum.f_max, spectrum.spacing))
+        build_network(network, equipment, p_db, p_total_db)
+        # check that nodes not in roadms have target_pch_out_db not None
+        pw_roadms = [r for r in network.nodes() if r.uid not in roadms and isinstance(r, Roadm)]
+        for roadm in pw_roadms:
+            assert roadm.target_psd_out_mWperGHz is None
+            assert roadm.target_pch_out_dbm == target
+        for roadm in [r for r in network.nodes() if r.uid in roadms and isinstance(r, Roadm)]:
+            assert roadm.target_pch_out_dbm is None
+            assert getattr(roadm, equalization) == target_psd
+    path = compute_constrained_path(network, req)
+    si = create_input_spectral_information(
+        f_min=req.f_min, f_max=req.f_max, roll_off=req.roll_off, baud_rate=req.baud_rate, power=req.power,
+        spacing=req.spacing, tx_osnr=req.tx_osnr, ref_carrier=ref)
+    for i, el in enumerate(path):
+        if isinstance(el, Roadm):
+            si = el(si, degree=path[i + 1].uid)
+            if case in ['SI', 'nodes', 'degrees']:
+                if equalization == 'target_psd_out_mWperGHz':
+                    assert_allclose(power_dbm_to_psd_mw_ghz(watt2dbm(si.signal + si.ase + si.nli), si.baud_rate),
+                                    target_psd, rtol=1e-3)
+                if equalization == 'target_out_mWperSlotWidth':
+                    assert_allclose(power_dbm_to_psd_mw_ghz(watt2dbm(si.signal + si.ase + si.nli), si.slot_width),
+                                    target_psd, rtol=1e-3)
+        else:
+            si = el(si)
+        print(el.uid)
+
+
+@pytest.mark.parametrize('req_power', [0, 2, -1.5])
+def test_power_option(req_power):
+    """check that --po option adds correctly power with spectral information
+    """
+    equipment = load_equipment(EQPT_FILENAME)
+    setattr(equipment['Roadm']['default'], 'target_pch_out_db', None)
+    setattr(equipment['Roadm']['default'], 'target_psd_out_mWperGHz', power_dbm_to_psd_mw_ghz(-20, 32e9))
+    network = net_setup(equipment)
+    req = create_voyager_req(equipment, 'trx Brest_KLA', 'trx Vannes_KBE', False, ['trx Vannes_KBE'], ['STRICT'],
+                             'mode 1', 50e9, req_power)
+    path = compute_constrained_path(network, req)
+    infos_expected = propagate(path, req, equipment)
+
+    temp = [{
+        "f_min": 191.4e12,     # align f_min , f_max on Voyager f_min, f_max and not SI !
+        "f_max": 196.1e12,
+        "baud_rate": req.baud_rate,
+        "slot_width": 50e9,
+        "roll_off": 0.15,
+        "tx_osnr": 40
+    }]
+    req.initial_spectrum = _spectrum_from_json(temp)
+    network2 = net_setup(equipment)
+    path2 = compute_constrained_path(network2, req)
+    infos_actual = propagate(path2, req, equipment)
+    assert_array_equal(infos_expected.baud_rate, infos_actual.baud_rate)
+    assert_array_equal(infos_expected.slot_width, infos_actual.slot_width)
+    assert_array_equal(infos_expected.signal, infos_actual.signal)
+    assert_array_equal(infos_expected.nli, infos_actual.nli)
+    assert_array_equal(infos_expected.ase, infos_actual.ase)
+    assert_array_equal(infos_expected.roll_off, infos_actual.roll_off)
+    assert_array_equal(infos_expected.chromatic_dispersion, infos_actual.chromatic_dispersion)
+    assert_array_equal(infos_expected.pmd, infos_actual.pmd)
+    assert_array_equal(infos_expected.channel_number, infos_actual.channel_number)
+    assert_array_equal(infos_expected.number_of_channels, infos_actual.number_of_channels)

tests/test_info.py

@@ -4,47 +4,56 @@
 import pytest
 from numpy import array, zeros, ones
 from numpy.testing import assert_array_equal
-
+from gnpy.core.info import create_arbitrary_spectral_information, Pref
-from gnpy.core.info import create_arbitrary_spectral_information
 from gnpy.core.exceptions import SpectrumError
 
 
 def test_create_arbitrary_spectral_information():
     si = create_arbitrary_spectral_information(frequency=[193.25e12, 193.3e12, 193.35e12],
-                                               baud_rate=32e9, signal=[1, 1, 1])
+                                               baud_rate=32e9, signal=[1, 1, 1],
+                                               delta_pdb_per_channel=[1, 1, 1],
+                                               tx_osnr=40.0,
+                                               ref_power=Pref(1, 1, None))
     assert_array_equal(si.baud_rate, array([32e9, 32e9, 32e9]))
     assert_array_equal(si.slot_width, array([37.5e9, 37.5e9, 37.5e9]))
     assert_array_equal(si.signal, ones(3))
     assert_array_equal(si.nli, zeros(3))
     assert_array_equal(si.ase, zeros(3))
+    assert_array_equal(si.delta_pdb_per_channel, ones(3))
     assert_array_equal(si.roll_off, zeros(3))
     assert_array_equal(si.chromatic_dispersion, zeros(3))
     assert_array_equal(si.pmd, zeros(3))
     assert_array_equal(si.channel_number, array([1, 2, 3]))
     assert_array_equal(si.number_of_channels, 3)
     assert_array_equal(si.df, array([[0, 50e9, 100e9], [-50e9, 0, 50e9], [-100e9, -50e9, 0]]))
+    assert_array_equal(si.tx_osnr, array([40.0, 40.0, 40.0]))
 
     with pytest.raises(SpectrumError, match='Spectra cannot be summed: channels overlapping.'):
         si += si
 
     si = create_arbitrary_spectral_information(frequency=array([193.35e12, 193.3e12, 193.25e12]),
                                                slot_width=array([50e9, 50e9, 50e9]),
-                                               baud_rate=32e9, signal=array([1, 2, 3]))
+                                               baud_rate=32e9, signal=array([1, 2, 3]),
+                                               tx_osnr=40.0,
+                                               ref_power=Pref(1, 1, None))
+
     assert_array_equal(si.signal, array([3, 2, 1]))
 
     with pytest.raises(SpectrumError, match='Spectrum baud rate, including the roll off, '
                                             r'larger than the slot width for channels: \[1, 3\].'):
         create_arbitrary_spectral_information(frequency=[193.25e12, 193.3e12, 193.35e12], signal=1,
-                                              baud_rate=[64e9, 32e9, 64e9], slot_width=50e9)
+                                              baud_rate=[64e9, 32e9, 64e9], slot_width=50e9,
+                                              tx_osnr=40.0,
+                                              ref_power=Pref(1, 1, None))
     with pytest.raises(SpectrumError, match='Spectrum required slot widths larger than the frequency spectral '
                                             r'distances between channels: \[\(1, 2\), \(3, 4\)\].'):
         create_arbitrary_spectral_information(frequency=[193.26e12, 193.3e12, 193.35e12, 193.39e12], signal=1,
-                                              baud_rate=32e9, slot_width=50e9)
+                                              tx_osnr=40.0, baud_rate=32e9, slot_width=50e9, ref_power=Pref(1, 1, None))
     with pytest.raises(SpectrumError, match='Spectrum required slot widths larger than the frequency spectral '
                                             r'distances between channels: \[\(1, 2\), \(2, 3\)\].'):
         create_arbitrary_spectral_information(frequency=[193.25e12, 193.3e12, 193.35e12], signal=1, baud_rate=49e9,
-                                              roll_off=0.1)
+                                              tx_osnr=40.0, roll_off=0.1, ref_power=Pref(1, 1, None))
-
     with pytest.raises(SpectrumError,
                        match='Dimension mismatch in input fields.'):
-        create_arbitrary_spectral_information(frequency=[193.25e12, 193.3e12, 193.35e12], signal=[1, 2], baud_rate=49e9)
+        create_arbitrary_spectral_information(frequency=[193.25e12, 193.3e12, 193.35e12], signal=[1, 2], baud_rate=49e9,
+                                              tx_osnr=40.0, ref_power=Pref(1, 1, None))

tests/test_invocation.py

@@ -20,7 +20,15 @@ SRC_ROOT = Path(__file__).parent.parent
      ['-e', 'gnpy/example-data/eqpt_config_openroadm_ver4.json', 'gnpy/example-data/Sweden_OpenROADMv4_example_network.json', ]),
     ('openroadm-v5-Stockholm-Gothenburg', transmission_main_example,
      ['-e', 'gnpy/example-data/eqpt_config_openroadm_ver5.json', 'gnpy/example-data/Sweden_OpenROADMv5_example_network.json', ]),
-))
+    ('transmission_main_example_long', transmission_main_example,
+     ['-e', 'tests/data/eqpt_config.json', 'tests/data/test_long_network.json']),
+    ('spectrum1_transmission_main_example', transmission_main_example,
+     ['--spectrum', 'gnpy/example-data/initial_spectrum1.json', 'gnpy/example-data/meshTopologyExampleV2.xls', ]),
+    ('spectrum2_transmission_main_example', transmission_main_example,
+     ['--spectrum', 'gnpy/example-data/initial_spectrum2.json', 'gnpy/example-data/meshTopologyExampleV2.xls', '--show-channels', ]),
+    ))
+
+
 def test_example_invocation(capfd, output, handler, args):
     '''Make sure that our examples produce useful output'''
     os.chdir(SRC_ROOT)

tests/test_parser.py

@@ -506,3 +506,71 @@ def test_eqpt_creation(tmpdir):
     # check that all amp in the converted files corresponds to an eqpt line
     for ampuid in jsonconverted.keys():
         assert ampuid in possiblename
+
+
+def test_service_json_constraint_order():
+    """test that the constraints are read in correct order"""
+
+    unsorted_request = {
+        "request-id": "unsorted",
+        "source": "trx Brest_KLA",
+        "destination": "trx Vannes_KBE",
+        "src-tp-id": "trx Brest_KLA",
+        "dst-tp-id": "trx Vannes_KBE",
+        "bidirectional": False,
+        "path-constraints": {
+            "te-bandwidth": {
+                "technology": "flexi-grid",
+                "trx_type": "Voyager",
+                "trx_mode": "mode 1",
+                "spacing": 50000000000.0,
+                "output-power": 0.001,
+                "path_bandwidth": 10000000000.0
+            }
+        },
+        "explicit-route-objects": {
+            "route-object-include-exclude": [
+                {
+                    "explicit-route-usage": "route-include-ero",
+                    "index": 2,
+                    "num-unnum-hop": {
+                        "node-id": "roadm Lorient_KMA",
+                        "link-tp-id": "link-tp-id is not used",
+                        "hop-type": "STRICT"
+                    }
+                },
+                {
+                    "explicit-route-usage": "route-include-ero",
+                    "index": 3,
+                    "num-unnum-hop": {
+                        "node-id": "roadm Vannes_KBE",
+                        "link-tp-id": "link-tp-id is not used",
+                        "hop-type": "STRICT"
+                    }
+                },
+                {
+                    "explicit-route-usage": "route-include-ero",
+                    "index": 1,
+                    "num-unnum-hop": {
+                        "node-id": "roadm Lannion_CAS",
+                        "link-tp-id": "link-tp-id is not used",
+                        "hop-type": "LOOSE"
+                    }
+                },
+                {
+                    "explicit-route-usage": "route-include-ero",
+                    "index": 0,
+                    "num-unnum-hop": {
+                        "node-id": "roadm Brest_KLA",
+                        "link-tp-id": "link-tp-id is not used",
+                        "hop-type": "STRICT"
+                    }
+                }
+            ]
+        }
+    }
+
+    data = {'path-request': [unsorted_request]}
+    rqs = requests_from_json(data, equipment)
+    assert rqs[0].nodes_list == ['roadm Brest_KLA', 'roadm Lannion_CAS', 'roadm Lorient_KMA', 'roadm Vannes_KBE']
+    assert rqs[0].loose_list == ['STRICT', 'LOOSE', 'STRICT', 'STRICT']

tests/test_propagation.py

@@ -6,7 +6,7 @@
 import pytest
 from gnpy.core.elements import Transceiver, Fiber, Edfa, Roadm
 from gnpy.core.utils import db2lin
-from gnpy.core.info import create_input_spectral_information
+from gnpy.core.info import create_input_spectral_information, ReferenceCarrier
 from gnpy.core.network import build_network
 from gnpy.tools.json_io import load_network, load_equipment
 from pathlib import Path
@@ -45,7 +45,9 @@ def propagation(input_power, con_in, con_out, dest):
     p = input_power
     p = db2lin(p) * 1e-3
     spacing = 50e9  # THz
-    si = create_input_spectral_information(191.3e12, 191.3e12 + 79 * spacing, 0.15, 32e9, p, spacing)
+    si = create_input_spectral_information(f_min=191.3e12, f_max=191.3e12 + 79 * spacing, roll_off=0.15,
+                                           baud_rate=32e9, power=p, spacing=spacing, tx_osnr=None,
+                                           ref_carrier=ReferenceCarrier(baud_rate=32e9, slot_width=50e9))
     source = next(transceivers[uid] for uid in transceivers if uid == 'trx A')
     sink = next(transceivers[uid] for uid in transceivers if uid == dest)
     path = dijkstra_path(network, source, sink)

tests/test_roadm_restrictions.py

@@ -19,7 +19,7 @@ from gnpy.core.elements import Fused, Roadm, Edfa
 from gnpy.core.network import build_network
 from gnpy.tools.json_io import network_from_json, load_equipment, load_json, Amp
 from gnpy.core.equipment import trx_mode_params
-from gnpy.topology.request import PathRequest, compute_constrained_path
+from gnpy.topology.request import PathRequest, compute_constrained_path, ref_carrier
 from gnpy.core.info import create_input_spectral_information
 from gnpy.core.utils import db2lin
 
@@ -228,9 +228,9 @@ def test_roadm_target_power(prev_node_type, effective_pch_out_db, power_dbm):
         prev_node['params'] = {'loss': 0}
     json_network['elements'].append(prev_node)
     network = network_from_json(json_network, equipment)
-    p_total_db = power_dbm + lin2db(automatic_nch(equipment['SI']['default'].f_min,
+    nb_channel = automatic_nch(equipment['SI']['default'].f_min, equipment['SI']['default'].f_max,
-                                                  equipment['SI']['default'].f_max,
+                               equipment['SI']['default'].spacing)
-                                                  equipment['SI']['default'].spacing))
+    p_total_db = power_dbm + lin2db(nb_channel)
 
     build_network(network, equipment, power_dbm, p_total_db)
 
@@ -245,6 +245,7 @@ def test_roadm_target_power(prev_node_type, effective_pch_out_db, power_dbm):
               'format': '',
               'path_bandwidth': 100e9,
               'effective_freq_slot': None,
+              'nb_channel': nb_channel
               }
     trx_params = trx_mode_params(equipment)
     params.update(trx_params)
@@ -252,15 +253,14 @@ def test_roadm_target_power(prev_node_type, effective_pch_out_db, power_dbm):
     req.power = db2lin(power_dbm - 30)
     path = compute_constrained_path(network, req)
     si = create_input_spectral_information(
-        req.f_min, req.f_max, req.roll_off, req.baud_rate,
+        f_min=req.f_min, f_max=req.f_max, roll_off=req.roll_off, baud_rate=req.baud_rate,
-        req.power, req.spacing)
+        power=req.power, spacing=req.spacing, tx_osnr=req.tx_osnr, ref_carrier=ref_carrier(equipment))
     for i, el in enumerate(path):
         if isinstance(el, Roadm):
-            min_power_in_roadm = min(si.signal + si.ase + si.nli)
+            power_in_roadm = si.signal + si.ase + si.nli
             si = el(si, degree=path[i + 1].uid)
             power_out_roadm = si.signal + si.ase + si.nli
             if el.uid == 'roadm node B':
-                print('input', min_power_in_roadm)
                 # if previous was an EDFA, power level at ROADM input is enough for the ROADM to apply its
                 # target power (as specified in equipment ie -20 dBm)
                 # if it is a Fused, the input power to the ROADM is smaller than the target power, and the
@@ -271,15 +271,15 @@ def test_roadm_target_power(prev_node_type, effective_pch_out_db, power_dbm):
                 if prev_node_type == 'edfa':
                     # edfa prev_node sets input power to roadm to a high enough value:
                     # check that target power is correctly set in the ROADM
-                    assert_allclose(el.pch_out_db, effective_pch_out_db, rtol=1e-3)
+                    assert_allclose(el.ref_pch_out_dbm, effective_pch_out_db, rtol=1e-3)
                     # Check that egress power of roadm is equal to target power
                     assert_allclose(power_out_roadm, db2lin(effective_pch_out_db - 30), rtol=1e-3)
                 elif prev_node_type == 'fused':
                     # fused prev_node does reamplfy power after fiber propagation, so input power
                     # to roadm is low.
                     # check that target power correctly reports power_dbm from previous propagation
-                    assert_allclose(el.pch_out_db, effective_pch_out_db + power_dbm, rtol=1e-3)
+                    assert_allclose(el.ref_pch_out_dbm, effective_pch_out_db + power_dbm, rtol=1e-3)
-                    # Check that egress power of roadm is equalized to the min carrier input power.
+                    # Check that egress power of roadm is not equalized power out is the same as power in.
-                    assert_allclose(power_out_roadm, min_power_in_roadm, rtol=1e-3)
+                    assert_allclose(power_out_roadm, power_in_roadm, rtol=1e-3)
         else:
             si = el(si)

tests/test_science_utils.py

@@ -12,7 +12,7 @@ from numpy.testing import assert_allclose
 from numpy import array, genfromtxt
 import pytest
 
-from gnpy.core.info import create_input_spectral_information, create_arbitrary_spectral_information
+from gnpy.core.info import create_input_spectral_information, create_arbitrary_spectral_information, Pref, ReferenceCarrier
 from gnpy.core.elements import Fiber, RamanFiber
 from gnpy.core.parameters import SimParams
 from gnpy.tools.json_io import load_json
@@ -28,7 +28,8 @@ def test_fiber():
 
     # fix grid spectral information generation
     spectral_info_input = create_input_spectral_information(f_min=191.3e12, f_max=196.1e12, roll_off=0.15,
-                                                            baud_rate=32e9, power=1e-3, spacing=50e9)
+                                                            baud_rate=32e9, power=1e-3, spacing=50e9, tx_osnr=40.0,
+                                                            ref_carrier=ReferenceCarrier(baud_rate=32e9, slot_width=50e9))
     # propagation
     spectral_info_out = fiber(spectral_info_input)
 
@@ -44,8 +45,12 @@ def test_fiber():
     slot_width = array([37.5e9, 50e9, 75e9, 50e9, 37.5e9])
     baud_rate = array([32e9, 42e9, 64e9, 42e9, 32e9])
     signal = 1e-3 + array([0, -1e-4, 3e-4, -2e-4, +2e-4])
+    delta_pdb_per_channel = [0, 0, 0, 0, 0]
+    pref = Pref(p_span0=0, p_spani=0, ref_carrier=None)
     spectral_info_input = create_arbitrary_spectral_information(frequency=frequency, slot_width=slot_width,
-                                                                signal=signal, baud_rate=baud_rate, roll_off=0.15)
+                                                                signal=signal, baud_rate=baud_rate, roll_off=0.15,
+                                                                delta_pdb_per_channel=delta_pdb_per_channel,
+                                                                tx_osnr=40.0, ref_power=pref)
 
     # propagation
     spectral_info_out = fiber(spectral_info_input)
@@ -63,7 +68,8 @@ def test_raman_fiber():
     """ Test the accuracy of propagating the RamanFiber."""
     # spectral information generation
     spectral_info_input = create_input_spectral_information(f_min=191.3e12, f_max=196.1e12, roll_off=0.15,
-                                                            baud_rate=32e9, power=1e-3, spacing=50e9)
+                                                            baud_rate=32e9, power=1e-3, spacing=50e9, tx_osnr=40.0,
+                                                            ref_carrier=ReferenceCarrier(baud_rate=32e9, slot_width=50e9))
     SimParams.set_params(load_json(TEST_DIR / 'data' / 'sim_params.json'))
     fiber = RamanFiber(**load_json(TEST_DIR / 'data' / 'test_science_utils_fiber_config.json'))
 
@@ -100,7 +106,8 @@ def test_fiber_lumped_losses_srs(set_sim_params):
     """ Test the accuracy of Fiber with lumped losses propagation."""
     # spectral information generation
     spectral_info_input = create_input_spectral_information(f_min=191.3e12, f_max=196.1e12, roll_off=0.15,
-                                                            baud_rate=32e9, power=1e-3, spacing=50e9)
+                                                            baud_rate=32e9, power=1e-3, spacing=50e9, tx_osnr=40.0,
+                                                            ref_carrier=ReferenceCarrier(baud_rate=32e9, slot_width=50e9))
 
     SimParams.set_params(load_json(TEST_DIR / 'data' / 'sim_params.json'))
     fiber = Fiber(**load_json(TEST_DIR / 'data' / 'test_lumped_losses_raman_fiber_config.json'))

tox.ini

@@ -4,7 +4,7 @@ skipsdist = True
 [testenv]
 deps =
 	-r{toxinidir}/requirements.txt
-	pytest>=6.2.5,<7
+	-r{toxinidir}/tests/requirements.txt
 	cover: pytest-cov
 	linters: flake8
 	linters: pep8-naming
@@ -19,7 +19,7 @@ commands =
 	pytest {env:CI_COVERAGE_OPTS:} -vv {posargs}
 	cover: coverage html -d cover
 	cover: coverage xml -o cover/coverage.xml
-	python setup.py bdist_wheel
+	python -m build
 
 [testenv:docs]
 deps =
@@ -43,4 +43,4 @@ commands =
 [flake8]
 max-line-length = 120
 max-complexity = 15
-ignore = N806
+ignore = N806 W503