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Optimization of pump size in a solid-state laser considering the temperature distribution in a laser medium

机译：考虑到激光介质中的温度分布，优化固态激光器中的泵浦尺寸

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摘要

The influences of the temperature distribution of a laser medium on thermal effects, especially on the thermally induced diffraction losses, have been investigated in this paper. The results show that the thermally induced diffraction losses are decreasing functions of the pump beam radius for identical mode-to-pump ratios in the laser medium, but it is approximately constant if the real temperature is neglected. Applying this theoretical model to a diode-end-pumped Nd:GdVO4 laser at 1342 nm, the pump size was optimized to scale the output power, and the theoretical results are in good agreement with the experimental results. (C) 2015 Optical Society of America
机译：本文研究了激光介质温度分布对热效应的影响，特别是对热致衍射损耗的影响。结果表明，对于激光介质中相同的模泵比，热诱导的衍射损耗是泵浦光束半径的递减函数，但如果忽略实际温度，则近似恒定。将该理论模型应用于二极管泵浦的Nd：GdVO4激光器（波长为1342 nm），优化了泵浦尺寸以调节输出功率，理论结果与实验结果吻合良好。 （C）2015年美国眼镜学会

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