BER vs OSNR graph

[Siti Sarah]

hi everyone…

I want to plot a graph of BER vs OSNR but I dont think the graph is correct. The BER should be decreasing when OSNR increases. How do i fix this to get BER vs OSNR pattern that is closed to the theoretical?

Attachments:

1. 

   ber-vs-osnr.jpg
   

[Ahmad Atieh]

Dear Sarah,
The fluctuations in OptiSystem is due to the randomness of generated signals in the different components in the software. I agree with you that the BER should get worst when the OSNR decreases, which is not happening in your figure. However, I can’t comment on the effect of OSNR in your system unless I saw the whole project design. You may send me the project as a zip file to check it and provide feedback.
my email is ahmad.atieh@optiwave.com
Regards,
Ahmad

[Author]

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