Method of generating PM iNRZ-xPSK modulation format

摘要

A system and method for producing a polarization multiplexed signal. The method comprises receiving a first and a second group of electrical data signal, introducing a predetermined delay between the first group of electrical data signal and the second group of electrical data signal and generating a first group and a second group of constant optical signal. The method further includes the electro-optically modulating the first group and second group of constant optical signals using the first group and second group of electrical signals, respectively, and polarization multiplexing the first group and the second group of optical signals together, such that their polarizations are orthogonal to each other.