Optical communications – Receiver – Heterodyne
Reexamination Certificate
2008-06-17
2008-06-17
Tran, Dzung D (Department: 2613)
Optical communications
Receiver
Heterodyne
C398S077000, C398S209000
Reexamination Certificate
active
07389055
ABSTRACT:
An optical receiver for receiving an optical differential phase shift keyed signal has an optical component sensitive to the optical phase of the signal, such as an interferometer, a device arranged to generate a control signal by non linear limiting of an output of the optical component, such as an RF amplifier arranged to operate in a region near saturation point, and a phase controller for tuning a phase response of the optical component to the received signal according to the control signal.
REFERENCES:
patent: 6097768 (2000-08-01), Janesch et al.
patent: 6590860 (2003-07-01), Sakoda et al.
patent: 2001/0031024 (2001-10-01), Petersen et al.
patent: 2004/0081470 (2004-04-01), Griffin
patent: 2004/0141222 (2004-07-01), Miyazaki et al.
patent: 2005/0111855 (2005-05-01), Bissessur
patent: 2005/0286911 (2005-12-01), Doerr et al.
patent: 2006/0067703 (2006-03-01), Haunstein et al.
Kee Hual
Rickard Robin
Robinson Alan
Barnes & Thornburg
Nortel Networks Limited
Tran Dzung D
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