Dear friends
Hope you will be fine
please refer to the attachment
i have simulated a optical communication systems and drawn plot between BER and received optical power at PIN.I sweep the received optical power by using an optical attenuator(No of sweeps =15 and attenuation changed from 0-10dB) just before the PIN.In between the PIN and Attenuator,i placed an optical meter which records received optical power in accordance with the attenuator.when i draw graph in report,the graph look like graph”1″ mentioned in attachment but the graph should be like “2” as mentioned in attachment.
Plz let me know what is the problem
regards
jawad
