Extended band optical fiber amplifier
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United States of America Patent
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Issued Date -
Mar 27, 2003
app pub date -
Dec 14, 2001
filing date -
Mar 16, 1999
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Apparatus and methods are disclosed for amplifying optical signals in a fiber optic system where the optical signals have a wavelength of at least N nanometers. The apparatus comprises means for providing a pump wavelength of (N-X) nanometers, where the wavelength (N-X) is not so short as to excite higher energy levels in the fiber optic system. The method comprises providing a pump wavelength of (N-X) nanometers, where the wavelength (N-X) is not so short as to excite higher energy levels in the fiber optic system.
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