Q-factor and BER results
I am new here, i see optisystem example Coherent 4 QAM.osd, and also see electrical modulations examples. for all these schemes i found constant value of Q-Factor,eye height=0, BER=1. also for eye diagram i only got one line instead of multiple lines to make eye.i attached BER result herewith. kindly guide me how to get plausible results please.
Thanks in advance.
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