Optical communications – Receiver – Including postcompensation
Reexamination Certificate
2003-12-04
2008-12-02
Leung, Christina Y (Department: 2613)
Optical communications
Receiver
Including postcompensation
C398S202000
Reexamination Certificate
active
07460793
ABSTRACT:
A method and system of coherent detection of optical signals. The system utilizes a digital signal processor to recover an incoming optical signal. The system employs a local oscillator, which does not need to be phase locked to the signal. The signal may be consistently recovered, even when the polarization state varies over time. Additionally, the signal may be recovered when it comprises two channels of the same wavelength that are polarization multiplexed together. In addition, any impairment to the signal may be reversed or eliminated.
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Diaz Michael L.
Leung Christina Y
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