Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Patent
1997-07-30
2000-05-30
Wu, Daniel J.
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
359127, 359128, 359130, H04J 1402
Patent
active
060697199
ABSTRACT:
In an optical add/drop multiplexer, an optical switch is coupled to one or more outputs from a demultiplexer. Accordingly, a dropped optical channel can be switched between a receiver optical path for directing the dropped optical signal to an optical receiver and between a combiner optical path for routing the dropped optical channel back towards the optical transmission path, optionally passing the dropped optical channel through a remodulator. Alternatively, the optical switch routes the dropped optical channel towards an optical receiver while permitting a new optical channel to be routed to add port of the static add-drop multiplexer.
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Notification of Transmittal of The International Search Report or The Declaration, 6 pages.
Burke Margaret
Ciena Corporation
Soltz David L.
Tweel , Jr. John
Wu Daniel J.
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