Optical communications – Transmitter and receiver system – Including compensation
Reexamination Certificate
2011-03-08
2011-03-08
Bello, Agustin (Department: 2613)
Optical communications
Transmitter and receiver system
Including compensation
C398S158000, C398S173000
Reexamination Certificate
active
07903978
ABSTRACT:
Optical systems of the present invention generally include an optical signal controller disposed along an optical link between two optical nodes. The optical signal controller is configured to provide a monitoring signal from an optical signal passing between the nodes as a plurality of wavelength sub-bands at least one of which includes a plurality of signal channels. The controller generates a compensating channel having an optical power that is a function of the monitoring signal power in the plurality of wavelength sub-bands or total power. The compensating channel is combined with the optical signal to compensate for power variations in the optical signal passing between the nodes. In addition, the compensating channels can be used to transmit communication or system supervisory information between monitoring points and/or nodes in the system.
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Kelty Mark A.
Price Alistair J.
Stephens Thomas D.
Bello Agustin
Broadwing, LLC
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