Broadening the linewidth of a semiconductor laser
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United States of America Patent
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Oct 15, 2002
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N/A
app pub date -
May 10, 2000
filing date -
May 10, 1999
priority date (Note) -
Expired
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Abstract
The invention is directed to a system and a method for controllably broadening the spectral characteristics, such as the emission linewidth, of a semiconductor laser by discharging an electric pulse, for example, a charged transmission line, across the laser terminals. The linewidth-broadened lasers find application in fiber optic sensors, such as fiber optic gyroscopes and current sensors, which have a relatively short de-coherence length.
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