EstherLerouzic 07fd89351b Computes reference input power in ROADM during design
input power is computed at design time: so let's record it and
use it instead of p_span_i for ROADM reference channel loss computation.
Note that this loss parameter is only used for visualisation purpose.
No impact on propagation.

Since this loss is computed for the reference channel used for
design, we need to record input power based on input degrees,
and indicate this information within the call function.

Note that this will be also usefull later on to implement ROADM
parameters

Signed-off-by: EstherLerouzic <esther.lerouzic@orange.com>
Change-Id: I64d510fc20df72f07158f400964d592d76dc0ce4
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GNPy: Optical Route Planning and DWDM Network Optimization

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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's OOPT/PSE working group. Together, we are building this tool for rapid development of production-grade route planning tools which is easily extensible to include custom network elements and performant to the scale of real-world mesh optical networks.

GNPy with an OLS system

Quick Start

Install either via Docker, or as a Python package. Read our documentation, learn from the demos, and get in touch with us.

This example demonstrates how GNPy can be used to check the expected SNR at the end of the line by varying the channel input power:

Running a simple simulation example

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, or give it a try online at gnpy.app:

Path propagation at gnpy.app

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