Community Forums - Mohammad Boroon

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Free Evaluation

Forum Replies Created

August 9, 2015 at 9:58 am #23343

Mohammad Boroon

Participant

Sorry for the late reply Damian. I tried running it using a version 13 but i still can’t get a -1000 for log-of-BER. Can you send me the file that you ran? did you make any changes in the file i sent you? yeah this is a quite complicated example but i wish i can get it to work because i really really really need it for my project. thanks

August 5, 2015 at 1:50 am #23148

Mohammad Boroon

Participant

Thanks Damian,
May i know what order number you used? single iteration or more? And may i know which version of Optisystem did you use? Did you get a Log of BER of a Back-to-Back system of a very negative number (say -50, -100)? Because i still can’t get it to work. it shows a log-of-BER of -0.303 all the time (back-to-back and after introduction of fiber).

August 4, 2015 at 9:01 am #23095

Mohammad Boroon

Participant

oh sorry, there was a connection issue i guess. here it is.

Attachments:

Optical-Differential-8-Level-Phase-Shift-Keying-OD8PSK.osd

August 2, 2015 at 11:05 am #22994

Mohammad Boroon

Participant

Thank you Damian,
The thing is i don’t know exactly how to parametrize my BER test set for OD8PSK. I tried using it for 1 of the channels using instructions in http://staging.optiwave.com/resources/applications-resources/optical-system-ber-calculation-using-the-ber-test-set/
I am using Optisystem 11.0 by the way. so i enabled single iteration and run it, but the BER was wrong. I tried it with different sequence lengths and etc but it didn’t show me BER yet. I attached the file here. could you please tell me what’s not right?

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