| 液体相位共轭技术在高重复频率双程放大器中的应用 |
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| 引用本文： | 高清松,童立新,陈晓琳,陈军,唐淳,冯国英.液体相位共轭技术在高重复频率双程放大器中的应用[J].强激光与粒子束,2006,18(9):1465-1468. |
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| 作者姓名： | 高清松 童立新 陈晓琳 陈军 唐淳 冯国英 |
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| 作者单位： | 1. 四川大学 电子信息学院， 成都 610064；2. 中国工程物理研究院 应用电子学研究所， 四川 绵阳 621900；3. 浙江大学 信息学院， 杭州 310027 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 采用丙酮液体作为相位共轭镜改善光束质量，实验研究了高重复频率二极管泵浦Nd:YAG双程放大器中液体SBS相位共轭技术的应用。结果表明：采用光束扫描方式，较明显地减小了液体介质热效应。激光器在重复频率400 Hz、注入能量40 mJ时，反射率达到65%。激光器使用SBS相位共轭镜后光束质量由2.3倍衍射极限提高到1.3倍衍射极限，激光脉宽由23 ns压缩到5 ns。
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| 关 键 词： | 激光器 相位共轭镜 高重复频率 液体SBS介质 热效应 |
| 文章编号： | 1001-4322(2006)09-1465-04 |
| 收稿时间： | 2005-12-27 |
| 修稿时间： | 2006-06-01 |
High pulse repetition rate double-pass amplifier with the liquid phase conjugating mirror |
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| GAO Qing-song,TONG Li-xin,CHEN Xiao-lin,CHEN Jun,TANG Chun,FENG Guo-ying.High pulse repetition rate double-pass amplifier with the liquid phase conjugating mirror[J].High Power Laser and Particle Beams,2006,18(9):1465-1468. |
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| Authors: | GAO Qing-song TONG Li-xin CHEN Xiao-lin CHEN Jun TANG Chun FENG Guo-ying |
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| Institution: | 1. College of Electronic Information, Sichuan University, Chengdu 610064, China;2. Institute of Applied Electronics, CAEP, P.O.Box 919-1013, Mianyang 621900, China;3. Department of Optical Engineering, Zhejiang University, Hangzhou 310027, China |
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| Abstract: | Phase conjugation technology with liquid CH_3COCH_3 as medium to improve beam quality in double-pass amplifier laser system is experimentally investigated.The results operating at 400 Hz repetition rate show that the thermal effects of the liquid medium can be effectively reduced when the beam scanning system is adopted.A maximum SBS reflectivity of 65% by using liquid CH_3COCH_3 is achieved at 400 Hz.In addition,the pulse width of laser has been compressed to 5 ns,and the beam quality has been improved. |
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| Keywords: | Lasers Phase conjugating mirror High repetition rate Liquid SBS medium Thermal effect |
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