SNR booster for WDM systems
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United States of America Patent
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Jul 6, 2004
Grant Date -
May 13, 2004
app pub date -
Feb 14, 2001
filing date -
Feb 14, 2000
priority date (Note) -
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status (Latency Note)
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Abstract
A non-linear optical loop mirror for processing optical signals comprises an optical fiber, a bi-directional amplifier, and a coupler. The optical fiber has a signal input and a signal output. At least a portion of the optical fiber includes a dispersion compensating fiber. At least a portion of the optical fiber forms a loop. The dispersion compensating fiber has an absolute magnitude of dispersion of at least 20 ps/nm-km for at least a portion of wavelengths in the optical signals. The bi-directional amplifier is coupled to the optical fiber. The coupler is coupled to a first portion of the optical fiber and a second portion of the optical fiber to form a fiber loop.
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