Optical communications – Receiver – Homodyne
Reexamination Certificate
2007-01-30
2007-01-30
Chan, Jason (Department: 2613)
Optical communications
Receiver
Homodyne
C398S205000, C398S185000
Reexamination Certificate
active
10041682
ABSTRACT:
The present invention comprises an optical communication system, including apparatuses and methods, which use coherence multiplexing to optically multiplex different signals that may have varying protocols or operate at different speeds, onto a single wavelength channel which is dense wavelength division multiplexed with other channels for optical communication. The apparatuses and methods of the optical communication system also enable the dropping and inserting of selected single protocol signals at intermediate sites of a DWDM communication link which is less costly and makes less wasteful use of optical wavelength channels for the communication of lower data rate information. The optical communication system comprises an optical DWDM multiplexer, an optical DWDM demultiplexer, an optical DWDM communication network communicatively connected to and interposed therebetween, a plurality of coherence multiplexer units connected for communication with the optical DWDM multiplexer, and a plurality of coherence demultiplexer units connected for communication with the optical DWDM demultiplexer.
REFERENCES:
patent: 4882775 (1989-11-01), Coleman
patent: 5027359 (1991-06-01), Leger et al.
patent: 5477369 (1995-12-01), Mahon et al.
patent: 5606446 (1997-02-01), Davis et al.
patent: 5691832 (1997-11-01), Liedenbaum et al.
patent: 6011874 (2000-01-01), Gluckstad
patent: 6111679 (2000-08-01), Fishman
patent: 2001/0048538 (2001-12-01), Kowalski
patent: 2002/0131693 (2002-09-01), Islam et al.
patent: 2004/0008989 (2004-01-01), Hung
Kartalopoulos, “Introduction to DWDM Technology”, IEEE Press, 2000; pp. 163-167.
Blair Steven M.
Campbell Larry L.
Chan Jason
Coursey IP Law, PC
Coursey, Esq. R. Stevan
Curs Nathan
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