Optical Multilevel Dpsk Systems with Coded Modulation
نویسندگان
چکیده
We propose and theoretically demonstrate the application of a specific coded modulation technique called as the Trellis Coded Modulation (TCM) to optical multilevel Differential Phase Shift Keying (DPSK) systems. In the process of identifying receiver structures for optical DPSK systems with coded modulation, it was discovered that though the parallel outputs from delay interferometer based optical multilevel DPSK receivers could be made statistically uncorrelated, statistically independence among the parallel outputs could never be achieved.
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