Programmable optical switching add/drop multiplexer
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United States of America Patent
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Oct 21, 2003
Grant Date -
Dec 26, 2002
app pub date -
Sep 18, 2001
filing date -
Mar 30, 2001
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Abstract
A multi-channel optical switching system particularly usable as a programmable optical add/drop multiplexer (POADM) in a multi-wavelength communication system. The switching system uses a thin film optical demux/mux that separates a multi-channel optical signal into a plurality of optical channels, and combines a plurality of optical channels into a multi-channel optical signal. The system also uses a plurality of optical ports optically connected to the thin film optical demux/mux and a selecting device to select which optical channel is directed to which of the optical ports.
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