Optical communications – Transmitter and receiver system – Including compensation
Reexamination Certificate
2005-02-28
2009-02-10
Wang, Quan-Zhen (Department: 2613)
Optical communications
Transmitter and receiver system
Including compensation
Reexamination Certificate
active
07489874
ABSTRACT:
Method and apparatus for demodulating one or more channels of an optical differential phase shift keyed (DPSK) signal with a symbol rate of SR using an athermal optical delay interferometer with a free spectral range (FSR) of 50 GHz/2N, and (0.8×SR)<FSR<(1.3×SR), where N=0, 1, 2 . . . .
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Liu Xiang
Wei Xing
Alcatel-Lucent USA Inc.
Wang Quan-Zhen
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