High reflectance laser resonator cavity
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United States of America Patent
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Feb 14, 1989
Issued Date -
N/A
app pub date -
Mar 21, 1988
filing date -
Jul 6, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A ceramic pump cavity structure for use in solid state lasers wherein the pump cavity comprises sintered alumina having grain sizes of between about 0.3 to 0.5 microns. Sintered alumina pump cavities having grain sizes within this range provide desirable diffuse reflectivity comparable to barium sulfate while at the same time providing a structurally strong cavity which is resistant to cracking and breakage. Combinations of the alumina oxide pump cavity with parasitic light absorbers such as samarium oxide are also disclosed.
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