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alistu
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Hi Shahbaz,

I just used a WDM CW laser in your FILE-21 and it worked well for all users! Here is the figure of its min BER vs transmitted power attached for the first four BER analyzers, along with one for the N1 file. I followed the exact steps depicted at:

Lesson 4: Parameter Sweeps — BER x Input Power

As you can see, the results seem acceptable for both even though I did not change bit sequence (I shortened the fiber though to reduce simulation time). But when the power goes up, maybe due to nonlinearities the error increases. So if I hadn’t increased power in sweep mode to that amount, I would have had waterfall-shaped figures. See if these help.

Regards

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