Dear All,
I am attaching a file where I made a simple setup for analyzing variation in BER …
Without touching the other parameters..if you set sequence length 32 you will get higher Q factor for above BER Analyzer_1 as compared to other BER Analyzer_2. And it should follow this pattern because received power of upper photo diode (Optical Power Meter_2) is higher than the lower photo diode (Optical Power Meter_3).
When you increase the sequence length above 32 like 64, 128, 256 etc…The received power of both photo diode decreases but with the almost same difference between them. (That is the received power of upper diode is always higher than lower one). But Q factor is now decreasing for upper arm instead of increasing whereas Q factor of lower arm started increasing (Contradiction with theory). This is making me very disturbed since last week….Why this happens?
Regards