Systems and methods for minimizing signal power and providing reduced Raman pump depletion for WDM optical system
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United States of America Patent
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Issued Date -
Oct 21, 2004
app pub date -
Mar 20, 2002
filing date -
Mar 20, 2002
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Abandoned
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Abstract
An optical transmission system with two counter propagating wavelength division multiplexed (WDM) optical signals carried by an optical fiber transmission line, has a first Raman pump for launching a first beam of pump energy for amplifying both WDM signals so that the first beam counter-propagates with respect to a first WDM signal The system also includes a second Raman pump for launching a second beam of pump energy for amplifying both WDM signals so that the second beam counter-propagates with respect to a second WDM signal.
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