US Patent 7606498 Carrier recovery in a coherent optical receiver

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Patent Citations Received

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US Patent 12081273 Mitigation of equalization-enhanced phase noise in a coherent optical receiver

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Patent Inventor Names

Han Sun0

James Harley0

Kim B. Roberts0

Kuang Tsan Wu0

Ruibin Jin0

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Patent abstract

A method of carrier recovery from a high speed optical signal received through an optical communications network. A stream of multi-bit digital samples of the optical signal is processed to generate a multi-bit estimate X′(n) of each one of a plurality of transmitted symbols. A phase of each symbol estimate X′(n) is rotated, and a respective symbol phase error Δφ(n) of the rotated symbol estimate determined.

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Official Website

https://pdfpiw.uspto.gov/.piw?Docid=076064980

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