Thermally Induced Birefringence Compensation in High Average Power Nd:YAG Laser
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Efficient compensation of thermally induced birefringence with thermal lensing in a rod geometry Nd:YAG laser amplifier was achieved by an in-cavity 90° polarization rotator with three sets of image relaying optics between the laser rods. The measured birefringence loss per transit was 2.8% for pumping power of 580 W per rod. A nearly diffraction limited output beam of 38 W was observed.
- Jpn J Appl Phys
Jpn J Appl Phys 46(3A), 1051-1053, 2007-03-15
INSTITUTE OF PURE AND APPLIED PHYSICS