中国激光, 2006, 33 (7): 922, 网络出版: 2006-08-08   

啁啾脉冲通过失调拼接光栅压缩池后的远场分析

Far Field Analysis after Chirped Pulse Passing through a Misalignment Tiled-Grating Compressor
作者单位
1 清华大学工程物理系,北京 100084
2 中国工程物理研究院激光聚变中心,四川 绵阳 621900
摘要
建立一个能分析拼接光栅的拼接误差效应的数学模型。利用傅里叶光学方法,分析横截面为圆的啁啾高斯光束通过失调的拼接光栅对压缩池(每个压缩光栅都由四个子光栅拼接而成)以及理想透镜的物理过程,得到焦平面上光场的积分表达式(对于光束口径)。利用该模型通过数值模拟详细分析了几种误差对于焦斑强度分布的影响。结果表明,在要求远场焦斑的施特雷尔比大于0.9的条件下系统的各种拼接误差需要满足:横向平移型误差Δx-nd
Abstract
A model is proposed for the analysis of possible errors in a tiled-grating pair compressor. By using the method of Fourier optics, the process of a chirped pulse's passing through a misalignment tiled-grating pair compressor and an ideal lens is studied and the integral expression of light field on focal plane is obtained. The effects of possible errors on focal spot intensity distribution are analyzed in detail by the numerical simulation. The results indicate that possible errors must satisfy Δx-nd
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左言磊, 魏晓峰, 朱启华, 刘红婕, 应纯同. 啁啾脉冲通过失调拼接光栅压缩池后的远场分析[J]. 中国激光, 2006, 33(7): 922. 左言磊, 魏晓峰, 朱启华, 刘红婕, 应纯同. Far Field Analysis after Chirped Pulse Passing through a Misalignment Tiled-Grating Compressor[J]. Chinese Journal of Lasers, 2006, 33(7): 922.

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