An improved feed-forward carrier recovery algorithm for coherent receivers with M-QAM modulation format

  • Zhou X
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An improved feed-forward carrier phase recovery method is proposed for coherent receivers using M-ary quadrature amplitude modulation-based modulation formats. It is shown that by introducing multiple cascaded feed-forward carrier recovery stages, the required compute power can be significantly reduced compared to the prior art using the single-stage-based blind phase search method.

Author-supplied keywords

  • Coherent receiver
  • feed-forward
  • modulation format
  • optical
  • phase recovery
  • quadrature amplitude modulation (QAM)

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  • Xiang Zhou

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