论文部分内容阅读
通过对半导体激光端面入射复合晶体工作特点的分析,建立了符合实际工作情况的热模型,利用热传导方程求解方法,得出了圆形截面复合晶体的温度场分布和端面热形变场通解表达式。研究结果表明:当使用输出功率为18W 半导体激光器端面中心入射复合晶体 YAG-Nd:YAG 时,抽运端面中心获得91.21℃最高温升和2.53 μm最大热形变量。复合晶体可以有效降低晶体中最高温升,但是不能减少晶体端面热形变。
Based on the analysis of the operating characteristics of the incident laser, the thermal model is established according to the actual working conditions. The heat field equation and the temperature field distribution of the circular cross-section composite crystal are obtained. The results show that the maximum temperature rise of 91.21 ℃ and the maximum thermal deformation of 2.53 μm are obtained at the center of the pumping face when YAG-Nd: YAG is used as the incident center of the 18W semiconductor laser. Composite crystals can effectively reduce the maximum temperature rise in the crystal, but can not reduce the thermal deformation of the crystal face.