High efficiency raman amplifier
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United States of America Patent
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Sep 9, 2003
Grant Date -
Apr 18, 2002
app pub date -
May 2, 2001
filing date -
Jun 16, 1998
priority date (Note) -
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Abstract
An amplifier apparatus includes an optical transmission line with a Raman amplification region that provides a pump to signal power conversion efficiency of at least 20%. The Raman amplification region is configured to amplify a signal with multiple wavelengths over at least a 30 nm range of wavelengths. A pump source is coupled to the optical transmission line. An input optical signal is amplified in the Raman amplification region and an output signal is generated that has at least 100 mW more power than the input optical signal.
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