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考虑晶体特性参量如热导率、热折射率梯度以及热膨胀系数等随温度变化的影响 ,通过求解热流方程给出了 L D纵向泵浦 Nd∶ YAG激光器激光介质的热透镜和热负荷比测量的表达式 ,分析了影响热负荷比测量的因素 ,对以前报道的热负荷比实验测量值与理论值存在的差别给予解释 ,理论分析与以往的实验结论相符
Considering the influence of temperature characteristics, such as thermal conductivity, thermal refractive index gradient and thermal expansion coefficient, the thermal lens and thermal load ratio of LD longitudinal pumped Nd:YAG laser were obtained by solving the heat flow equation The factors influencing the heat load ratio are analyzed. The difference between the previously reported heat load ratio and the experimental value is theoretically explained. The theoretical analysis accords with the previous experimental results