LD变半径泵浦Nd:GdVO4晶体棒热效应

研究LD泵浦晶体在实际谐振腔中，LD变化半径在晶体中产生的热效应，通过与理论上在理想模型下所求解的结果比较，发现采用变高斯半径构建物理模型,实验值与理论值基本一致。新模型的研究结果：当输出功率为15W时，抽运端面中心获得199.545C最高温升和1.33m最大热形变量。这种新的研究方法可以更准确地应用到其它激光晶体热问题的研究中，为有效解决激光系统热问题提供了理论依据。

Thermal effect of the variable Gaussian radius by LD Nd:GdVO4 Crystal bar

Thermal effect of the variable Gaussian radius is produced by LD Nd:GdVO4 Crystal bar in the Resonator fiber .Compared with the theoretical values, the experiment values are largely accord with the theory based on the new physics model using variable Gaussian radius. The new research results show that the maximum temperature rise of 199.545C and the maximum thermal distortion of 1.33m can be obtained in the center of the pump end surface when the Nd:YVO4 laser crystal is pumped by a Diode Laser with a output power of 15 Watt from the center of end face. This new method can also be applied to the research on the other thermal problems of laser crystal and offer theoretical basis for effectively solving the thermal problems in laser system.