Optical communications system with fiber break detection in the presence of Raman amplification
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United States of America Patent
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May 15, 2007
Grant Date -
Sep 7, 2006
app pub date -
Mar 4, 2005
filing date -
Mar 4, 2005
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Abstract
An optical communications system initiates automatic power reduction by selecting a portion of a Raman optical pumping signal from optical signals propagating on an optical fiber span. A signal related to a magnitude of the selected portion of the Raman optical pumping signal is generated. Power of at least one of the optical data signals and the optical pumping signals propagating in the optical fiber span is reduced in response to the generated signal.
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