can some one please explain why OSNR will decrease if no of lambdas are increased.....particularly for 100G lambdas.
If i consider one span from A to B and consider span is with in range
and there is no degradation in span,initially there are 4 100G lambdas
are running and the OSNR is near about 25 dB.
If i keep on adding channels in this span i.e around 30 channels then
OSNR will decrease to some XX value.
Note is that the span losses are same in both cases.
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