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高功率激光装置空间滤波器小孔准直

Spatial Filter Pinhole Alignmenton High Power Laser Facility

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摘要

利用新型准直远场探测包光栅元件的双向衍射, 实现了空间滤波器的小孔准直, 特别是对同一段光路中两个空间滤波器的小孔对准.该方案克服了传统滤波器对小孔尺寸的限制并满足远场准直包高稳定性的要求, 在光路远场准直的同时实现了小孔中心位置的监测与准直调整, 并在以色列项目中得以成功应用, 装置实验结果表明: 针对装置15倍衍射极限大小的小孔, 对准精度小于小孔直径3%, 满足装置器件小孔对准调试小于小孔直径4%的要求.

Abstract

Using grating diffraction of a new far field alignment package, the spatial filtering pinholes alignment in two spatial filters especially on the same optical path is achieved. This scheme overcomes the shortcomings of pinholes size requirement of traditional method, realizes two pinholes center aligned while maintaining beams far|field alignment function. The new method has been successfully applied to the Israel project. The facility experiment results show that the alignment accuracy is less than 3% of the pinhole diameter which is 15 times of the beams diffraction limit, which meets the requirements of facility debugging (<4% of the pinhole diameter).

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中图分类号:TP751.2

DOI:10.3788/gzxb20184711.1114002

基金项目:国家自然科学基金(Nos. 61605190, 11604317)资助

收稿日期:2018-03-09

修改稿日期:2018-08-30

网络出版日期:--

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闫世森:中国科学院上海光学精密机械研究所 高功率激光物理联合实验室, 上海 201800中国科学院大学, 北京 100049
刘代中:中国科学院上海光学精密机械研究所 高功率激光物理联合实验室, 上海 201800
欧阳小平:中国科学院上海光学精密机械研究所 高功率激光物理联合实验室, 上海 201800
龚蕾:中国科学院上海光学精密机械研究所 高功率激光物理联合实验室, 上海 201800
李红:中国科学院上海光学精密机械研究所 高功率激光物理联合实验室, 上海 201800
林强:中国科学院上海光学精密机械研究所 高功率激光物理联合实验室, 上海 201800
唐顺兴:中国科学院上海光学精密机械研究所 高功率激光物理联合实验室, 上海 201800
朱宝强:中国科学院上海光学精密机械研究所 高功率激光物理联合实验室, 上海 201800

联系人作者:闫世森(yanshisensos@163.com)

备注:闫世森(1992|), 男, 硕士研究生, 主要研究方向为激光自动准直与图像处理.

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引用该论文

YAN Shisen,LIU Daizhong,OU YANG Xiaoping,GONG Lei,LI Hong,LIN Qiang,TANG Shunxing,ZHU Baoqiang. Spatial Filter Pinhole Alignmenton High Power Laser Facility[J]. ACTA PHOTONICA SINICA, 2018, 47(11): 1114002

闫世森,刘代中,欧阳小平,龚蕾,李红,林强,唐顺兴,朱宝强. 高功率激光装置空间滤波器小孔准直[J]. 光子学报, 2018, 47(11): 1114002

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