High power infrared laser system
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United States of America Patent
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May 25, 1999
Grant Date -
N/A
app pub date -
Jun 19, 1996
filing date -
Jun 19, 1996
priority date (Note) -
Expired
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Abstract
A surgical laser system is provided with improvements to allow it to operate at higher power levels without beam divergence. The improvements include a beam expansion telescope in the optical path of the beam and modifications to the optical cavity and the lasing medium. The modifications include imposing a negative curvature on one or both ends of the rod, configuring the optical cavity as a positive-branch unstable resonator, and providing at least one intra-cavity shutter.
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