DQPSK

[Dr. Dhiman KakatiParticipant]

How can I generate a Differential quaternary phase shift keying(DQPSK) signnal of 40 GHz. please help.

[alistuParticipant]

Hi Dhiman,

Are you seeking something other than using the Optisystem DPSK component, setting bits per symbol as “2” in the component properties (to make it DQPSK), and setting the frequency as 4 0GHz? (I assume you need this for the system you introduced in the local oscillator topic)

Regards

+1

[gaganpreet KaurParticipant]

Hello alistu can u pls guide me if i can use DPQSK modulation format for WDM system in optisystem.If yes how do we do that. pls help.

[alistuParticipant]

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

[Dr. Dhiman KakatiParticipant]

Thanks a lot Alistu. Hope for more help in future.

+2

[alistuParticipant]

You’re welcome Dhiman, I did not get from you comment if my solution was helpful or not, though.

[gaganpreet KaurParticipant]

Thank you so much alistu . ur suggestion surely helped me, though i have not yet executed the system . i am currently working on DWDM systems i am using hybrid amplifiers.Use of DPQSK interested me but i am not yet searched for associated research publications, as soon as i do i will be glad to share it, Thanks.

[alistuParticipant]

You’re welcome Gaganpreet.