| 热效应影响光束质量的数值模拟 |
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| 引用本文： | 王慧.热效应影响光束质量的数值模拟[J].电子科技,2010,23(6):14-18. |
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| 作者姓名： | 王慧 |
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| 作者单位： | (西安电子科技大学 技术物理学院,陕西 西安 710071) |
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| 摘 要： | 建立了圆柱形激光晶体的热传导模型,在晶体周边冷却、两通光面绝热情况下,通过求解热传导方程,得出圆形截面Nd:YAG晶体的温度分布,得到热效应对光束衍射倍率因子M2的影响与腔长、全反镜曲率半径、输出镜曲率半径、泵浦功率的关系。这一结论为提高激光器的可靠性,研究激光晶体的热效应提供了理论依据。
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| 关 键 词： | 激光晶体 端面泵浦 热效应 光束质量 |
Numerical Simulation of Thermal Effect on Beam Quality |
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| Wang Hui.Numerical Simulation of Thermal Effect on Beam Quality[J].Electronic Science and Technology,2010,23(6):14-18. |
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| Authors: | Wang Hui |
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| Affiliation: | (School of Technical Physics,Xidian University,Xi'an 710071,China) |
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| Abstract: | An anisotropic square thermal model of laser crystal is established.The temperature distribution in Nd∶YAG crystal has been obtained by solving a thermal conductance equation with the surrounding cooled and the two clear surfaces heat insulating.Finally,we determine the relationship between the impact of the thermal effect on beam quality factor and the curvature radius of the completely reflecting mirror,the curvature radius of the output reflecting mirror,cavity length,pump power and the pumping radius.This conclusion has provided a theoretical direction for the reliability of lasers and the thermal effect of crystal. |
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| Keywords: | laser crystal endface pump thermal effect beam quality |
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