- This topic has 7 replies, 3 voices, and was last updated 10 years, 1 month ago by
alistu.
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September 10, 2015 at 2:14 pm #24564
Dr. Dhiman KakatiParticipantHow can I generate a Differential quaternary phase shift keying(DQPSK) signnal of 40 GHz. please help.
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September 10, 2015 at 3:08 pm #24565
alistuParticipantHi 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
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September 10, 2015 at 3:12 pm #24567
gaganpreet KaurParticipantHello 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.
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September 10, 2015 at 3:28 pm #24572
alistuParticipantHi 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
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September 10, 2015 at 3:19 pm #24570
Dr. Dhiman KakatiParticipantThanks a lot Alistu. Hope for more help in future.
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September 11, 2015 at 1:41 am #24574
gaganpreet KaurParticipantThank 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.
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