Diffraction of a modulated laser beam in 3ω optics system

被引：1
|
作者：
Sun, Pingping [1 ]
Liu, Dean [1 ]
Zhang, Yanli [1 ]
Zhang, Yan [1 ]
Liu, Fang [1 ]
Zhu, Jianqiang [1 ]
机构：
[1] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Shanghai 201800, Peoples R China
来源：
OPTIK | 2012年 / 123卷 / 24期
关键词：
Diffraction optics; Modulated beam; Phase distortion;
D O I：
10.1016/j.ijleo.2011.11.026
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Based on diffraction optical theory, diffraction of a laser beam with periodic amplitude modulation and phase distortion is derived in 3 omega optics system. Influence of defocus distance and focal length of a focusing lens on intensity distribution of diffraction light is investigated by numerical simulation. The results show that appropriate distance away from the focus spot and increase the focal length in final optical systems are beneficial to control the modulation of light intensity fluctuations and reduce the optical components damage caused by small-scale self-focusing effect. (C) 2011 Elsevier GmbH. All rights reserved.
引用
收藏
页码：2285 / 2287
页数：3
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