Wavefront control of laser beam using optically addressed liquid crystal modulator

被引：15
|
作者：
Huang, Dajie [1 ]
Fan, Wei [1 ]
Cheng, He [1 ]
Xia, Gang [1 ]
Pei, Lili [1 ]
Li, Xuechun [1 ]
Lin, Zunqi [1 ]
机构：
[1] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Natl Lab High Power Laser & Phys, Shanghai, Peoples R China
来源：
HIGH POWER LASER SCIENCE AND ENGINEERING | 2018年 / 6卷
关键词：
light propagation; novel optical material and devices; wavefront correction;
D O I：
10.1017/hpl.2018.13
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
An optically addressed liquid crystal modulator for wavefront control of 1053 nm laser beam is reported in this paper. Its working principle, control method and spatial phase modulation capability are mainly introduced. A new method of measuring the relationship between gray level and phase retardation is proposed. The rationality of the curve is further confirmed by designing special experiments. According to the curve, several spatial phase distributions have been realized by this home-made device. The results show that, not only the maximum phase retardation is larger than 2 pi for 1053 nm wavelength, but also the control accuracy is high. Compared with the liquid crystal on silicon type spatial light modulator, this kind of modulator has the advantages of generating smooth phase distribution and avoiding the black-matrix effect.
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页数：4
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