Analytical model for temperature distribution of an end diode-pumped laser slab with Robin boundary conditions by Green’s function method
Analytical model for temperature distribution of an end diode-pumped laser slab with Robin boundary conditions by Green’s function method
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DOI：
10.1088/1054-660x/26/5/055001
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发表时间：
2016-03
期刊：
影响因子：
1.2
通讯作者：
M. H. Moghtader dindarlu;M. K. Tehrani;H. Saghafifar;A. Maleki
中科院分区：
文献类型：
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作者：
M. H. Moghtader dindarlu;M. K. Tehrani;H. Saghafifar;A. Maleki
本文用格林函数法建立了二极管端面泵浦激光板条温度分布的解析模型。在求解热方程时，考虑了Robin边界条件，因为板坯的四个侧面都是由水冷却的。建立了单端泵浦和双端泵浦的解析模型。作为算例，绘制了二维和三维温度分布图，并用基于有限元方法的数值解对分析模型进行了验证。结果表明，我们的模型与数值解具有很好的一致性。此外，还给出了温度分布与吸收泵浦功率的关系。
In this paper, an analytical model is introduced for temperature distribution of an end diode-pumped laser slab by Green’s function method. To solve the heat equation, Robin boundary conditions are considered because four lateral faces of the slab are cooled by water. An analytical model is extracted for single and dual end-pumping configuration. For an example, the 2D and 3D temperature distributions are plotted and our analytical model is validated by numerical solution based on the finite element method (FEM). The results show that our model has very good agreement with numerical solution. Furthermore, dependence of the temperature distribution on absorbed pump power is shown.