Thermal lens compensation of Nd:YAG rod laser using a solid element of negative temperature coefficient of refractive index
نویسندگان
چکیده
In high power solid-state-laser systems, one of the major problems is the thermal effect, which occurs in optically pumped laser materials. Heating of the laser medium causes thermal distortions, leading to degradation of beam quality. The main thermal effects in laser rods are thermally induced birefringence and thermal lensing effects. High efficiency, high power and good output beam quality can be achieved by proper compensation of thermal lens effect. In this report, the experimental results of study on the compensating of thermal lens are presented.
منابع مشابه
Thermal Lensing in a Nd:YAG Laser Rod.
Theoretical and experimental results are reported on the thermal lensing effect caused by the radial thermal gradient present in optically pumped Nd:YAG laser rods. The presented theory is in agreement with the experimental observations. The results reveal that a Nd: YAG rod under pumped light becomes a positive lens with two focal lengths. The temperature dependent variation of the refractive ...
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