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Waveplate for correcting thermally induced stress birefringence in solid state lasers
Waveplate for correcting thermally induced stress birefringence in solid state lasers
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机译:用于校正固态激光器中热致应力双折射的波片
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摘要
Thermally induced stress birefringence in laser resonators is eliminated by inserting a waveplate in the resonating cavity. The waveplate is chosen by matching its polarization transmission matrix to the polarization transmission matrices of the laser rod and a Porro prism used as an end reflector in the resonating cavity. This produces a total polarization transmission matrix in the resonating cavity which is independent of ray coordinates. Additional control of the polarization transmission matrix is provided using a Porro prism as a cavity reflector that has an antireflection coating on its roof to change the required phase advance angle of the waveplate.
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