Coherent augmented optical add-drop multiplexer
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United States of America Patent
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Feb 17, 2015
Grant Date -
Nov 3, 2011
app pub date -
Oct 15, 2009
filing date -
Oct 17, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
In an Optical Add-Drop Multiplexer, a drop section comprises a Wavelength Selective Switch (WSS) having at least one drop-port, the WSS being operative to couple a respective set of w (where w>1) wavelength channels from a received Wavelength Division Multiplexed (WDM) signal to each drop port. A respective 1:s power splitter is associated with each drop port. Each power splitter supplies the respective set of channels received from its drop port to each one of a corresponding set of coherent receivers. Each coherent receiver operates to receive a selected one of the respective set of channels.
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