Thermal lensing-compensated lanthanum beryllate laser
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United States of America Patent
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Dec 15, 1987
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N/A
app pub date -
Aug 2, 1985
filing date -
Aug 2, 1985
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Expired
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Abstract
A single crystal of rare-earth-doped lanthanum beryllate, whose crystal orientation is suitably chosen, provides a laser medium whose index of refraction is substantially independent of temperature. A laser using such a crystal as the laser medium displays little or no thermal lensing, thus permitting high power operation without wavefront distortion.
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