Geometry for cylindrical shaped laser system gain medium
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United States of America Patent
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Dec 22, 1998
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N/A
app pub date -
Jul 31, 1997
filing date -
Jul 31, 1997
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Abstract
A cylindrically shaped gain medium for a laser resonant cavity. The gain medium has an outer cylindrical side surface and two opposing end faces. An annular groove is formed in the side surface. An energy source excites the gain medium to create a laser beam inside the cavity. The laser beam passes longitudinally through the gain medium. The annular groove defines an annular aperture inside the gain medium for the laser beam. The annular aperture has a diameter that is smaller than a diameter of the side surface and the end faces.
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