彩色全息显示中液晶空间光调制器位相调制偏差的矫正方法

郑华东; 于瀛洁; 代林茂; 王涛

doi:10.7498/aps.59.6145

摘要

采用三基色激光照明并结合时分复用或空间复用技术,可实现基于液晶空间光调制器(LC-SLM)的彩色全息显示. 但由于在不同激光波长入射条件下LC-SLM的位相调制特性曲线不同,难以同时满足多波长入射条件下2π线性位相调制的要求,致使彩色全息再现结果受到共轭像和零级斑的干扰. 针对该问题,本文通过实验测试获得LC-SLM在不同波长入射时的位相调制特性曲线,并分析了RGB激光器各分量的位相调制特性曲线非线性偏差和调制幅度偏差对多阶位相型傅里叶变换相息图再现效果的影响. 根据"查表法"建立了各波长入射条件下满足2

关键词:

Abstract

It is feasible to realize full-color holographic display based on liquid crystal spatial light modulator by use of multi-wavelength illumination combined with time division multiplexing (TDM) or space division multiplexing (SDM). However, the modulation characteristics of liquid crystal spatial light modulator (LC-SLM) vary with the wavelength of incident laser beam. Especially, the non-linearity and the modulation-depth mismatch of phase modulation curve are the important factors influencing the reconstruction quality of phase hologram in full-color holographic display. In order to solve this problem, a novel method is proposed to correct the gray-scale of phase holograms in the RGB channels with the established gray-mapping model according to the phase modulation curves measured under different wavelengths, and compensate the effects of non-linearity and the modulation-depth mismatch of phase modulation curves. Analysis of numerical and optical reconstruction results are carried out. It is verified that the method is effective to improve the qualities of reconstructed images in the RGB channels.

Keywords:

full-color holographic display /
liquid crystal spatial light modulator (LC-SLM) /
phase modulation /
deviation correction

作者及机构信息

1.
上海大学精密机械工程系,上海 200072

基金项目: 国家自然科学基金(批准号:60772124),上海市科委国际合作项目(批准号:09530708700)和上海大学研究生创新基金(批准号:Shucx101060,Shucx102195)资助的课题.

Authors and contacts

1.
Department of Precision Mechanical Engineering, Shanghai University, Shanghai 200072, China

参考文献

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[29]	Zheng H D, Yu Y J, Qian H Y, Asundi A 2008 Proc. SPIE 7155 71550C

施引文献

[1]	Tocnaye J L B, Dupont L 1997 Appl. Opt. 36 1730
[2]	Ge A M, S Zh, Xu K Sh 2003 Acta Phys. Sin. 52 2481 (in Chinese) [葛爱明、隋展、徐克璹 2003 52 2481]
[3]	Ren G J, Yao J Q, Wang P, Zhang Q, Zhang H Y, Zhang Y P, 2007 Acta Phys. Sin. 56 994 (in Chinese) [任广军、姚建铨、王鹏、张强、张会云、张玉萍 2007 56 994]
[4]	Ge Z B, Wu T X, Zhu X Y, Wu S T 2005 J. Opt. Soc. Am. A 22 966
[5]	Cao Zh L, Hu L F, Liu Y G, Mu Q Q, Xuan L 2007 Chin. Phys. 16 1665
[6]	Xing H Y, Yang G Ch, Ye W J, Yuan M Y 2009 Chin. Phys. B 18 238
[7]	Love G D 1997 Appl. Opt. 36 1517
[8]	Zheng J H, Zhong Y W, Wen K, Luo X S, Zhuang S L 2010 Acta Phys. Sin. 59 1831(in Chinese) [郑继红、钟阳万、温垦、骆鑫盛、庄松林 2010 59 1831]
[9]	Cao Zh L, Hu L F, Jiang B G, Li Ch, Mu Q Q, Xuan L 2008 Chin. Phys. B 17 4529
[10]	Cai D M, Lin N, Jiang W H 2008 Acta Phys. Sin. 57 897 (in Chinese) [蔡冬梅、凌宁、姜文汉 2008 57 897]
[11]	Fernández E J, Prieto P M, Artal P 2009 Opt. Express 17 11013
[12]	Liu B H, Zhang J 2006 Chin. J. Lasers 33 899 (in Chinese) [刘伯晗、张健 2006 中国激光 33 899]
[13]	Guo C S, Zhen Y R, Wang H T, Wang Y R, Cai L Z 2003 Appl. Opt. 42 6975
[14]	Bitou Y 2003 Opt. Lett. 28 1576
[15]	Falldorf C, Osten S, Kopylow C, Jüptner W 2009 Opt. Lett. 34 2727
[16]	Baker K L, Stappaerts E A 2006 Opt. Lett. 31 733
[17]	Kohler C, Schwab X, Osten W 2006 Appl. Opt. 45 960
[18]	Yu Y J, Wang T, Zheng H D 2009 Acta Phys. Sin. 58 3154 (in Chinese) [于瀛洁、王涛、郑华东 2009 58 3154]
[19]	Zhang X J, Liu X, Li H F 2007 J. Zhejiang University (Engineering Science) 41 1519 (in Chinese) [张晓洁、刘旭、李海峰 2007 浙江大学学报(工学版) 41 1519]
[20]	Huang S J, Wang Sh Zh, Yu Y J 2009 Acta Phys. Sin. 58 952 (in Chinese) [黄素娟、王朔中、于瀛洁 2009 58 952]
[21]	Georgiou A, Christmas J, Moore J, Jeziorska-Chapman A, Davey A, Collings N, Crossland W A 2008 Appl. Opt. 47 4793
[22]	Ito T, Okano K 2004 Opt. Express 12 4320
[23]	Shimobaba T, Shiraki A, Masuda N, Ito T 2007 J. Opt. A: Pure Appl. Opt. 9 757
[24]	Ren Ch Y, Sun X D, Pei Y B 2009 Acta Phys. Sin. 58 298 (in Chinese) [任常愚、孙秀冬、裴延波 2009 58 298]
[25]	Martínez J L, Martínez-García A, Moreno I 2009 Appl. Opt. 48 911
[26]	Hu L F, Xuan L, Liu Y J, Cao Zh L, Li D Y, Mu Q Q 2004 Opt. Express 12 6403
[27]	Kohler C, Haist T, Schwab X, Osten W 2008 Opt. Express 16 14861
[28]	Zheng H D 2009 Ph. D. Dissertation (Shanghai: Shanghai University) (in Chinese) [郑华东 2009 博士学位论文 (上海: 上海大学)]
[29]	Zheng H D, Yu Y J, Qian H Y, Asundi A 2008 Proc. SPIE 7155 71550C

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