A novel beat interference cancellation receiver for polarization multiplexing single-sideband signals

We propose a new beat interference cancellation receiver (BICR) to recover the polarization division multiplexing (PDM) single-sideband (SSB) signals without signal-to-signal beat interference (SSBI) by using optical filters. Our method has simple principles and structures, and it works well under a very low carrier-signal power ratio (CSPR). Also, our proposed method needs no complicated algorithms for recover the signal and mitigate the SSBI.