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Correct calculation of NF for OpenROADM amps

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This fixes #420.

In order to be consistent with the OpenROADM MSA, the input power per
channel used for calculating incremental OSNR and NF should be scaled to
50 GHz slot width.

Signed-off-by: Jonas Mårtensson <jonas.martensson@ri.se>
Change-Id: I64ca3e4cad6399f308827f4161d7c6b89be9d2ca
This commit is contained in:
Jonas Mårtensson
2021-10-15 09:20:34 +02:00
committed by Jan Kundrát
parent 57e98d7173
commit 99b2a554dc
2 changed files with 14 additions and 6 deletions
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gnpy/core/network.py
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@@ -27,6 +27,7 @@ def edfa_nf(gain_target, variety_type, equipment):
)
amp.pin_db = 0
amp.nch = 88
amp.slot_width = 50e9
return amp._calc_nf(True)