Optical waveguides – With optical coupler – Switch
Reexamination Certificate
2002-06-28
2004-12-14
Kim, Ellen E. (Department: 2874)
Optical waveguides
With optical coupler
Switch
C337S298000
Reexamination Certificate
active
06832015
ABSTRACT:
BACKGROUND OF THE DISCLOSURE
Optical fibers are replacing conductive wires in telephone and data communications, since optical fibers provide extremely high bandwidth, are immune to radio frequency noise, and generate virtually no electromagnetic interference. As the cost of optical fibers decreases, use of optical fibers is expanding to applications that require switching to dynamically reconfigure the interconnection of optical signal paths. However, it is often difficult to achieve switching of optical signals.
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Hewlett--Packard Development Company, L.P.
Kim Ellen E.
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