Tone Signaling For Coherent Optical Data Receivers

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United States of America Patent

APP PUB NO 20140016928A1
SERIAL NO

13940498

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Abstract

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A method for extracting admin information from a modulated optical signal. A coherent optical receiver receives the modulated optical signal, where a nominal carrier frequency of the modulated optical signal was modulated using a first slow frequency and second slow frequency associated with an electronic admin signal. The receiver converts the modulated optical signal to an electronic signal, and estimates estimating a plurality of carrier phases of the electronic signal. The receiver determines a plurality of offset values by calculating the time derivative of at least some of the estimated carrier phases, wherein each of the plurality of offset values are proportional to an associated frequency offset component, and the frequency of each offset value corresponds to the first slow frequency or the second slow frequency. The receiver extracts information corresponding to the electronic admin signal using the determined plurality of offset values.

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Patent OwnerAddress
OCLARO INC2560 JUNCTION AVE SAN JOSE CA 95134

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Khatana, Sunil Kumar Singh Sunnyvale, US 12 258

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