| 高功率高重复频率全固态激光器热透镜效应补偿与分析 |
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| 引用本文： | 马惠军,孟俊清,李小莉,朱小磊,陆雨田.高功率高重复频率全固态激光器热透镜效应补偿与分析[J].强激光与粒子束,2005,17(Z1):175-179. |
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| 作者姓名： | 马惠军 孟俊清 李小莉 朱小磊 陆雨田 |
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| 作者单位： | 中国科学院,上海光学精密机械研究所,上海,201800 |
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| 基金项目： | 国家863计划项目资助课题 |
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| 摘 要： | 将kHz高功率固体激光器增益介质当作厚透镜处理,建立了热透镜效应分析的理论模型,使用矩阵的方法对等效热透镜腔进行分析.对增益介质抽运均匀性进行了改善,通过分析模拟计算结果,设计了混合非稳腔结构,选择了最佳凸面镜曲率半径对热透镜效应进行补偿.试验结果表明,补偿效果明显,kHz高功率全固态激光器的光束发散角优于1.3 mrad.
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| 关 键 词： | 高功率固体激光器 厚透镜 热透镜效应补偿 |
| 文章编号： | 1001-4322(2005)S0-0175-05 |
| 修稿时间： | 2004年11月22 |
Study on Compensation of Thermal Lens in High Power High Repetition Solid-State Laser |
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| MA Hui-jun,MENG Jun-qing,LI Xiao-li,ZHU Xiao-lei,LU Yu-tian.Study on Compensation of Thermal Lens in High Power High Repetition Solid-State Laser[J].High Power Laser and Particle Beams,2005,17(Z1):175-179. |
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| Authors: | MA Hui-jun MENG Jun-qing LI Xiao-li ZHU Xiao-lei LU Yu-tian |
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| Abstract: | A model which treated the active medium as a thick lens was established to analyze the effects of thermal lens in the resonator. By using the matrix method, the equivalent resonator performance was studied. The uniformity of pump energy distribution was improved. An unstable plane-convex resonant cavity with special parameters was designed based on the calculation result of thermal lens compensation. The optimum radius of the rear convex mirror was presented which could efficiently compensate the effect of thermal lens. A beam divergence less than 1.3 mrad was achieved. |
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| Keywords: | High power solid-state laser Thick lens Compensation of thermal effect |
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