how to do Dispersion compensation and carrier phase estimation?

[prebenParticipant]

Dear All,
Merry Christmas and Happy New Year!

I am a beginner in coherent detection area. I would like to know how to do chromatic dispersion compensation and carrier phase estimation in the electrical domain with Matlab?

Thanks in advance!

[adnan sabbarParticipant]

Hello friend, for CD compensation I can help you. But I couldn’t understand the second part of your question.
However, there are two methods to mitigate the chromatic dispersion.
1- using Dispersion Compensation Fiber (DCF)
2- Optical Phase Conjugate (OPC)

[prebenParticipant]

hi Adnan,
thank you so much for your reply. I would like to do dispersion compensation after coherent detection.
I am going to simulate 100G DP-QPSK system with Optisystem13+Matlab.
the attached are osd. and m file to compensate the dispersion. but it hasn’t worked.

[prebenParticipant]

osd file.I dont know why I cannot upload attachments.

[prebenParticipant]

osd and m files to compensate dispersion in frequency domain after coherent detection. but It hasn’t worked.

Attachments:

1. compensation.zip

[prebenParticipant]

sorry for some mistakes I found at the end of code.
OutputPort2.Sampled.Signal = interp(imag(OutX),SamplesPerSymbol);
OutputPort3.Sampled.Signal = interp(real(OutY),SamplesPerSymbol);
OutputPort4.Sampled.Signal = interp(imag(OutY),SamplesPerSymbol);