Optical communications – Multiplex – Optical switching
Reexamination Certificate
2007-09-25
2007-09-25
Singh, Dalzid (Department: 2613)
Optical communications
Multiplex
Optical switching
C398S048000, C398S056000, C398S082000
Reexamination Certificate
active
10863386
ABSTRACT:
The optical systems of the present invention include optical switching device generally configured to control signal characteristic profiles over the pluralities of signal channels, or wavelengths, to provide desired signal characteristic profiles at the output ports of the device. Various signal characteristics that can be controlled include power level, cross-talk, optical signal to noise ratio, etc. The optical switching devices can include balanced demultiplexer/multiplexer combinations and switches that provide for uniform optical loss through the devices. In addition, low extinction ratio switches can be configured to provide higher extinction ratios.
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Corvis Corporation
Singh Dalzid
LandOfFree
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