Monitoring with an optical wavelength router
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United States of America Patent
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Feb 8, 2000
Grant Date -
N/A
app pub date -
Dec 24, 1997
filing date -
Dec 24, 1997
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Monitoring of the wavelength and power in an optical network is realized by including a wavelength router in which output ports at particular locations are included to derive samples for the monitoring. A periodic variation in the optical length of the arms of the grating in the router is used to focus additional power at these selected locations. Such a router can also be used for multiplexing and demultiplexing optical signals.
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