Fault tolerant optical amplifier configuration using pump feedthrough
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United States of America Patent
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May 31, 2005
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N/A
app pub date -
Jan 25, 2002
filing date -
Jan 25, 2001
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Expired
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Abstract
A method and apparatus for amplifying optical transmission signals is described. A bi-directional amplifier utilizes a pump feed-through signal from one of the optical pumps used to pump a first amplifying fiber to provide pump power to a second amplifying fiber. If an optical pump within the amplifier fails, this feed-through signal is used to pump the amplifying fiber directly pumped by the failed pump source.
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