[Urvi pathakParticipant]

Hi all,
I am getting proper output now. Thank you for helping.. Combined solution of all worked well thank a lot.

[Urvi pathakParticipant]

Hi sanjeev,

Here i am sending you snap shot of my output,Constellation diagram and lay out parameters.I hope you will get the problem.

Attachments:

1. 

   constellation-diagram.jpg
   

2. 

   lay-out-parameters.jpg
   

3. 

   output-of-BER-analyser.jpg
   

[Urvi pathakParticipant]

Hi ranjeet,

I tried your suggestion of symmetric compensation but it is also not working.

[Urvi pathakParticipant]

Hi Sanjeev,

As you told I have set optimum bitrate of layout to 40Gbps..In output I am getting Q factor of hardly 2 and getting any of one output either I or Q channel. When I monitor constellation diagram then it is not proper all phases I got in one quadrant only.

[Urvi pathakParticipant]

Hi dhiman ,
I am also getting perfect result in case of one channel with 40Gbps but when implemented in WDM it is not working. not getting problem.Thanks for trying and hopefully you find the problem with design…

[Urvi pathakParticipant]

Thanks dhiman
Waiting for your response..

[Urvi pathakParticipant]

Receiver design and optical link.

Attachments:

1. 

   receiver.jpg
   

2. 

   Optical-link.jpg
   

[Urvi pathakParticipant]

Here I m sending transmitter design.

Attachments:

1. 

   Transmitter-DQPSK.jpg
   

[Urvi pathakParticipant]

Hi dhiman
Here I m sending snap shot of my transmitter, optical link and receiver. I m working on 4 channel wdm each with 10gbps and compensating dispersion with dcf. Channel spacing 50GHz. 193.414thz to 193.564thz.

[Urvi pathakParticipant]

Hi.
Thanks rather and ranjit will definitely try ur suggested changes and hope it will help I will let u know as I got any result thanks.

[Urvi pathakParticipant]

Here i am attaching my osd file

Attachments:

1. DQPSK-WDM-42.osd

[Urvi pathakParticipant]

I am doing analysis for power level from -15 dbm to +15 dbm.

[Urvi pathakParticipant]

hi
Thanks for replying.I have already implemented DPSK with 4 channel it works perfectly but DQPSK with 4 channel is not working here i am attaching the firl for reference.Please see it.

Attachments:

1. DQPSK-WDM-4.osd