Coherent gated receiver

Details Coherent gated receiver Coherent gated receiver

2006-06-01

2010-10-05

Tran, Dzung D (Department: 2613)

Optical communications

Multiplex

Code division multiplexing

C398S077000, C398S079000

Reexamination Certificate

active

07809267

ABSTRACT:
The present invention is directed to a coherent gated receiver. The receiver includes a decoder operable to receive an optical signal and generate a decoded optical signal, the decoder comprises a demultiplexer operable to spatially distribute the optical signal, a phase mask operable to decode the spatially distributed optical signal, and a multiplexer operable to combine the decoded spatially distributed optical signal. The receiver also includes a laser source operable to provide a pulse signal, a combiner coupled to the laser source and the decoder operable to combine the decoded optical signal and the pulse signal, and a detector operable to detect an output from the combiner.

REFERENCES:
patent: 2003/0058504 (2003-03-01), Cho et al.
patent: 2004/0091262 (2004-05-01), Pohjola et al.
patent: 2004/0096226 (2004-05-01), Hiironen et al.
patent: 2004/0246466 (2004-12-01), Hunsche
patent: 2006/0171722 (2006-08-01), Toliver
patent: 2007/0036553 (2007-02-01), Etemad et al.
Hashimoto et al. Optical clock recovery using optical phase locked loop with voltage controlled mode locked semiconductor laser, ECOC 2004—vol. 3, pp. 376-377.
International Search Report, dated Aug. 27, 2008 (2 pages).

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