Reply To: optical qpsk

[ZULKARNAINParticipant]

hi debanjan sanker,
For your reference i am attaching few links in which QPSK was discussed,which you might find of some help.

100 gb/s using PM-QPSK modulation design optical fiber transmission network

100 Gbps DP-QPSK System with Digital Signal Processing

QPSK Modulator and Demodulator

with regards