September 10, 2015 at 3:28 pm
#24572
Hi Gaganpreet,
You can use DQPSK as I have depicted in the above comment. For a WDM system, you would use DQPSK for each channel and the rest is what you have to do as every WDM system set up (which is assigning frequencies with a defined spacing to the WDM channels). If you are working on a paper, please attach it if it’s possible.
Regards