中国激光, 2017, 44 (4): 0405001, 网络出版: 2017-04-10   

电寻址振幅型空间光调制器的光束整形能力

Beam Shaping Capability of Amplitude Spatial Light Modulator by Electrical Addressing
程煜 1,2,*黄大杰 1范薇 1
作者单位
1 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
2 中国科学院大学, 北京 100049
摘要
对电寻址振幅型空间光调制器(SLM)在高功率激光系统中存在的问题进行了分析。理论分析了电寻址空间光调制器的黑栅效应对光束近场光束整形效果的影响, 提出了通过优化空间滤波器的小孔参数获得最佳整形效果的技术方案, 并计算了小孔滤波后的能量利用率。同时, 分析了液晶空间光调制器的开口率对光束整形的影响, 为了提升近场整形精度, 空间光调制器的开口率最好大于64%。研究了纯振幅型空间光调制器调制过程中引入的相位畸变, 从理论分析和实验验证两方面得出了附加相位分布图, 计算得出最大附加相位为0.135λ,对激光装置的影响在可接受范围之内。
Abstract
The problems of the amplitude spatial light modulator(SLM) by electrical addressing in high power laser systems are analyzed. Firstly, the effect of the black gate of the SLM by electrical addressing on the near-field beam shaping is analyzed theoretically. The technical scheme of obtaining the best shaping effect by optimizing the aperture size of the spatial filter is proposed, and the energy efficiency of the filter is calculated. Meanwhile, the effect of liquid crystal SLM′s opening ratio on beam shaping is analyzed. In order to enhance the near-field shaping accuracy, the opening ratio of the SLM should be better than 64%. Finally, the phase distortion introduced by the pure amplitude spatial light modulator is studied. The additional phase is obtained from the theoretical analysis and experimental verification. The calculated maximum additional phase is 0.135λ, which means that the influence on the laser device is within acceptable range.
参考文献

[1] 隋 展. 高功率激光系统中的光束全息控制[D]. 上海: 复旦大学, 2006.

    Sui Zhan. Beam holographic control in high power laser system[D]. Shanghai: Fudan University, 2006.

[2] 李海峰. 液晶光阀及其在大屏幕投影显示中的应用[D]. 杭州: 浙江大学, 2002.

    Li Haifeng. Liquid crystal light valve and its application in large screen projection display[D]. Hangzhou: Zhejiang University, 2002.

[3] Huang Dajie, Fan Wei, Li Xuechun, et al. Performance of an optically addressed liquid crystal light valve and its application in optics damage protection[J]. Chinese Optics Letters, 2013, 11(7): 072301.

[4] 黄大杰, 范 薇, 于国浩, 等. 振幅型光寻址液晶光阀装置及其制备方法: 中国, CN201010195229.7[P]. 2011-11-16.

[5] 颜树华, 戴一帆, 吕海宝, 等. 电寻址空间光调制器“黑栅”效应的消除方法[J]. 光子学报, 2002, 31(11): 1421-1424.

    Yan Shuhua, Dai Yifan, Lü Haibao, et al. Methods of eliminating pixelization effect in electro-addressable spatial light modulator[J].Acta Photonica Sinica, 2002, 31(11): 1421-1424.

[6] 谢 杰. 二元振幅型面板用于激光空间整形的研制[D]. 上海: 中国科学院上海光学精密机械研究所, 2008.

    Xie Jie. Preparation of binary amplitude panel for laser space shaping[D]. Shanghai: Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, 2008.

[7] 鲁 强, 盛 磊, 张 鑫, 等. 斜入射下液晶空间光调制器纯相位调制特性研究[J]. 中国激光, 2016, 43(1): 0112001.

    Lu Qiang, Sheng Lei, Zhang Xin, et al. Investigation on pure phase modulation characteristics of liquid crystal spatial light modulator at oblique incidence[J]. Chinese J Lasers, 2016, 43(1): 0112001.

[8] 梁言生, 姚保利, 雷 铭, 等. 基于空间光场调控技术的光学微操纵[J]. 光学学报, 2016, 36(10): 1026003.

    Liang Yansheng, Yao Baoli, Lei Ming, et al. Optical micro-manipulation based on spatial modulation of optical fields[J]. Acta Optica Sinica, 2016, 36 (10): 1026003.

[9] 李 冰. 纯相位液晶空间光调制器的研究[D]. 大连: 大连理工大学, 2007.

    Li Bing. Study of pure phase liquid crystal spatial light modulator[D]. Dalian: Dalian University of Technology, 2007.

[10] 李 莎, 刘 旭, 张晓洁. 计算全息再现中LCD黑栅效应的研究[J]. 光电工程, 2007, 34(8): 41-45.

    Li Sha, Liu Xu, Zhang Xiaojie. Black-matrix effect of liquid crystal display in reconstructing computer-generated hologram[J]. Optoelectronic Engineering, 2007, 34(8): 41-45.

[11] Simmons W, Guch S, Rainer F, et al. A high energy spatial filter for removal of small scale beam instabilities in high power solid state lasers[J]. IEEE Journal of Quantum Electronics, 1975, 11(9): 852-852.

[12] Hunt J T, Renard P A, Simmons W W. Improved performance of fusion lasers using the imaging properties of multiple spatial filters[J]. Applied Optics, 1977, 16(4): 779-782.

[13] Simmons W W, Speck D R, Hunt J T. Argus laser system: performance summary[J]. Applied Optics, 1978, 17(7): 999-1005.

[14] 徐世祥, 管富义, 林尊琪, 等. 高功率激光系统空间滤波器透镜焦距的选择及其测量[J]. 中国激光, 1996, 23(12): 1077-1080.

    Xu Shixiang, Guan Fuyi, Lin Zunqi, et al. Design and measurement of focal lengths of lenses of large f-number used in spatial filters in a high power solid-state laser system[J]. Chinese J Lasers,1996, 23(12): 1077-1080.

[15] 陈怀新, 隋 展, 陈祯培, 等. 采用液晶空间光调制器进行激光光束的空间整形[J]. 光学学报, 2001, 21(9): 1107-1111.

    Chen Huaixin, Sui Zhan, Chen Zhenpei, et al. Laser beam shaping using liquid crystal spatial light modulator[J]. Acta Optica Sinica, 2001, 21(9): 1107-1111.

[16] Saleh B E A, Lu K H. Theory and design of the liquid crystal TV as an optical spatial phase modulator[J]. Optical Engineering, 1990, 29(3): 240-246.

程煜, 黄大杰, 范薇. 电寻址振幅型空间光调制器的光束整形能力[J]. 中国激光, 2017, 44(4): 0405001. Cheng Yu, Huang Dajie, Fan Wei. Beam Shaping Capability of Amplitude Spatial Light Modulator by Electrical Addressing[J]. Chinese Journal of Lasers, 2017, 44(4): 0405001.

本文已被 4 篇论文引用
被引统计数据来源于中国光学期刊网
引用该论文: TXT   |   EndNote

相关论文

加载中...

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!