Optical fiber amplifier using synchronized etalon filter
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United States of America Patent
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Jan 30, 2001
Grant Date -
N/A
app pub date -
Dec 10, 1998
filing date -
Dec 10, 1997
priority date (Note) -
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Abstract
A multi-stage optical fiber amplifier having a high gain, a high output power and a low noise figure, without limiting a gain bandwidth includes at least two stages of cascade connected optical fiber amplifiers. A synchronized etalon filter is disposed between the optical fiber amplifiers. The etalon filter has a resonant frequency matched with a standard frequency of a WDM (Wavelength Division Multiplexing) system using the optical fiber amplifiers.
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