[JamalParticipant]

I am not using the built in DSP block for QPSK because I have implemented the ADC separately.

[JamalParticipant]

Nik DJENH
Were you able to solve your problem this way ?

[JamalParticipant]

Damian, can you suggest how this predistorter would be employed to mitigate the nonlinearity introduced by an MZM ?

[JamalParticipant]

Thank you Burhan

[JamalParticipant]

I have the same queries

[JamalParticipant]

Damian, is there any example that shows the working of the pre-distortion component ?

[JamalParticipant]

Anyone?

[JamalParticipant]

@burhan

As you have quite a lot idea of matlab interfacing, I’d be pleased if you could help me with the interfacing.

I have initialised my output with OutputPort1 = InputPort1; and after doing all the work on the input signal I want to assign it to output.
I end the code with OutputPort1.Sampled.Signal = InterleavedSignal
In matlab after this assignment, I can successfully plot the OutputPort1.Sampled.Signal but the signal does not show up back in optisystem

[JamalParticipant]

Thank you Aabid, I shall go through this

[JamalParticipant]

Thank you Karan, Aabid and Burhan

[JamalParticipant]

Thank you Karan for such valuable information.
second order harmonics are minimal at quadrature point as you said.
Do you know at what point are third order harmonics minimal ?
Also can you give a mathematical explanation for this ?

[JamalParticipant]

Thank you Hamza
Maybe its a memory issue
I am using windows 10 and the system has 4Gb RAM

[JamalParticipant]

It gives the error as seen in the screenshot

Attachments:

1. 

   error.png
   

[JamalParticipant]

a post-compensation method in digital domain ?

[JamalParticipant]

equation for the transfer function of MZM ?