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  • Optical Fiber Communication Conference/National Fiber Optic Engineers Conference 2011
  • OSA Technical Digest (CD) (Optica Publishing Group, 2011),
  • paper OMJ3
  • https://doi.org/10.1364/OFC.2011.OMJ3

Low-Complexity, Blind Phase Recovery for Coherent Receivers Using QAM Modulation

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Abstract

We propose a new hybrid PLL/ML phase estimation method for low-complexity, blind phase recovery for M-QAM modulation. The linewidth tolerance of the proposed method is more than one order of magnitude better than PLL-only method.

© 2011 Optical Society of America

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