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Thermal Wavefront Distortion Compensation in Gas Cooled NdGlass Amplifier Based on Edge Heating_上海光

上海光学精密机械研究所 免费考研网/2018-05-06

中文题目: 基于边缘加热的气冷钕玻璃放大器热波前畸变补偿
外文题目: Thermal Wavefront Distortion Compensation in Gas Cooled NdGlass Amplifier Based on Edge Heating
作者: 黄文发; 王江峰; 卢兴华; 李学春
刊名: 中国激光
年: 2017 卷: 44 期: 1 文章编号:101001
中文关键词:
激光光学; 热畸变; 边缘加热; 钕玻璃; 氦气冷却; 激光放大器
英文关键词:

laser optics; thermal distortion; edge heating; Ndglass; helium gas cooling; laser amplifier
中文摘要:
理论分析了基于边缘加热条件下气冷钕玻璃放大器的热致波前畸变,模拟计算了不同加热温度下钕玻璃片的温度分布和热波前畸变分布,并进行了实验验证。结果表明,数值模拟与实验结果能较好地吻合,在产热率为0.6W/cm~3时,钕玻璃片产生的热波前畸变随着边缘温度的增加而减小,而当边缘温度达到90℃时,热波前畸变开始出现反转,随温度增加而增加。合理设计边缘加热结构和优化加热温度,能有效抑制气冷钕玻璃放大器的热波前畸变。

英文摘要:
Thermal wavefront distortion in the gas cooled Ndglass laser amplifier based on edge heating is analyzed theoretically.Temperature distribution and thermal wavefront distortion under different heating temperatures of the Ndglass are simulated numerically and verified by an experiment.The results show that the numerical simulation is in good agreement with the experimental results.Thermal wavefront distortion decreases as the heating edge temperature increases when the heat deposition is 0.6W/cm~3,but starts increasing when the edge temperature is higher than 90℃.Optimal design of the edge heating structure and heating temperature can suppress the thermal wavefront distortion effectively in the gas cooled Ndglass laser amplifier.


文献类型: 期刊论文
正文语种: Chinese
收录类别: CSCD
DOI: 10.3788/CJL201744.0101001


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