Apparatus and method for cross phase modulation recovery

摘要

Apparatus and method for cross phase modulation recovery are disclosed. An apparatus for cross phase modulation recovery may include M stages of cross phase modulation recovering devices connected in cascade, wherein M‰¥2, and each stage of the M-stages of cross phase modulation recovering devices is configured to perform cross phase modulation recovery to a polarization de-multiplexed signal input into the each stage. An optical coherent receiver including such an apparatus for cross phase modulation recovery is also disclosed.