High power Nd:YLF solid state lasers
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United States of America Patent
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Sep 15, 1992
Issued Date -
N/A
app pub date -
Sep 26, 1990
filing date -
Apr 24, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A high power TEM.sub.00 mode Nd:YLF solid state laser includes at least two pumped Nd:YLF solid state rods in series within a laser resonator. A spherical lens may be incorporated within the resonator as required for establishing, in concert with the rods and resonator end mirrors, a large intracavity beam diameter at the position of the rods. A cylindrical lens may be provided to compensate for astigmatic thermal focusing of the Nd:YLF rods, or else the rods may be used in pairs, in which case the rods are rotated by 90.degree. about the laser axis with respect to each other, and a half-wave plate is inserted between the rods of each pair to maintain oscillation at a single wavelength.
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