| 腔镜变形对平凹稳腔激光振荡模式影响的数值研究 |
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| 引用本文： | 库耕,程祖海,朱松林,张耀宁,杜泽民.腔镜变形对平凹稳腔激光振荡模式影响的数值研究[J].强激光与粒子束,1997,9(3). |
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| 作者姓名： | 库耕 程祖海 朱松林 张耀宁 杜泽民 |
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| 作者单位： | 华中理工大学激光技术国家实验室,武汉 430074 |
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| 基金项目： | 国家863激光技术领域资助 |
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| 摘 要： | 用Fox-Li迭代法研究了激光谐振腔镜面变形对激光振荡模式的影响, 给出了几种镜面变形条件下的激光谐振腔自再现模,即镜面上光场振幅和位相分布的模拟结果。对平凹稳定腔,为获得严格的基模激光振荡,应将这种镜面变形控制在1/20波长范围内;若镜面变形超过1/10波长,则该谐振腔不存在严格的基模自再现模。同时,高功率激光腔镜的边缘冷却方式将造成较大的镜面形状变化,从而影响激光光束质量。
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| 关 键 词： | 激光模式 反射镜 镜面变形 数值计算 |
| 收稿时间： | 1900-01-01; |
Numerical Study on Effect of the Mirror Distortion on the Oscillatory Mode Variation of Stable |
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| Resonator Ku Geng,Cheng Zhuhai,and Zhang Yaonin$$$$.Numerical Study on Effect of the Mirror Distortion on the Oscillatory Mode Variation of Stable[J].High Power Laser and Particle Beams,1997,9(3). |
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| Authors: | Resonator Ku Geng Cheng Zhuhai and Zhang Yaonin$$$$ |
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| Abstract: | The modes of stable resonator which consist of thermal distorted flat and concave mirror are investigated with Fox-Li iteration. The amplitude and phase distrigutions on the output mirror are psented. For this stable resontor, in orderto erase the mode's distribution the thermal distortion of both mirror distortion is greater than 1/10 wavelength, there would be no fundamental mode. It is also pointed out that there are more serious mirror thermal distortion in fringe cooling mirror in high power laser and then the laser beam quality is lowered badly. |
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| Keywords: | laser mode reflector mirror distortion numeral study |
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