Fiber source for seeding an ultrashort optical pulse amplifier
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United States of America Patent
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Jun 25, 1996
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Apr 24, 1995
filing date -
Apr 24, 1995
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Abstract
An apparatus for seeding a solid-state, ultrashort optical pulse amplifier system comprises an excitation source that pumps a gain medium which is restricted to the core of an optical fiber. The gain medium is disposed in a resonant cavity with components arranged to produce ultrashort pulses of light at a fundamental wavelength. Such systems are well known to those skilled in the art. These ultrashort pulses are then frequency-doubled in a non-linear crystal to produce a seed pulse whose doubled frequency substantially matches that of the amplifier gain medium. These seed pulses are then injected into the amplifier wherein they are amplified.
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