| 基于远场的拼接光栅压缩池的设计 |
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| 引用本文： | 左言磊,魏晓峰,朱启华,王逍,郭仪,黄征,刘红婕,应纯同.基于远场的拼接光栅压缩池的设计[J].强激光与粒子束,2006,18(10):1619-1624. |
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| 作者姓名： | 左言磊 魏晓峰 朱启华 王逍 郭仪 黄征 刘红婕 应纯同 |
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| 作者单位： | 1.中国工程物理研究院 激光聚变研究中心, 四川 绵阳 621900; 2.清华大学 工程物理系, 北京 100084 |
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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： | 利用傅里叶光学方法得到了失调拼接光栅压缩池输出光束的远场振幅表达式，建立了分析拼接光栅的各种误差的理论模型，得到了拼接误差对脉冲的影响是附加相位延迟和角度偏转。在要求远场的一倍衍射极限区域的积分能量分布达到理想情况下的90％的条件下，对于含有口径为40 cm、脉宽为0.1~10 ps脉冲的系统进行分析并分别得到了各种误差的容限。
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| 关 键 词： | 拼接光栅压缩池 快点火 相干叠加 远场 |
| 文章编号： | 1001-4322(2006)10-1619-06 |
| 收稿时间： | 2006-03-03 |
| 修稿时间： | 2006-08-10 |
Far-field based design of an arrayed grating compressor |
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| ZUO Yan-lei, WEI Xiao-feng, ZHU Qi-hua, WANG Xiao, GUO Yi, HUANG Zheng, LIU Hong-jie, YING Chun-tong.Far-field based design of an arrayed grating compressor[J].High Power Laser and Particle Beams,2006,18(10):1619-1624. |
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| Authors: | ZUO Yan-lei WEI Xiao-feng ZHU Qi-hua WANG Xiao GUO Yi HUANG Zheng LIU Hong-jie YING Chun-tong |
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| Institution: | 1. Research Center of Laser Fusion, CAEP, P.O.Box 919-988, Mianyang 621900, China;2.Department of Engineering Physics, Tsinghua University, Beijing 100084, China |
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| Abstract: | In terms of Fourier optics,the amplitude expression of the output pulse from the misaligned tiled-grating compressor in the far-field is obtained.A theoretical model for the analysis of all the errors is put up,where the idea that the impact of alignment errors on the pulse is the additional phase delay and deflection is summarized.With the criterion that the encircled energy in one times diffraction limit should be kept more than 90% of the ideal case,a design is carried out for a 1 ps pulse with a size of 40 cm and the tolerances of every alignment error are obtained. |
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| Keywords: | Tiled-grating compressor Fast ignition Coherent addition Far field |
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