快速响应的硅基纯相位液晶器件对动态大气湍流波前的校正能力研究

刘超; 胡立发; 曹召良; 穆全全; 彭增辉; 宣丽

doi:10.7498/aps.61.089501

摘要

液晶相位调制器的响应时间延迟是影响液晶自适应光学系统性能的一个主要因素, 为了提高系统的响应速度, 开发了一种快速响应的向列相液晶材料, 并制成了反射式硅基液晶器件(LCOS). 分析了该LCOS的相位调制特性及其对静态畸变波前和扰动波前的校正能力. 首先, 测量了LCOS的电光响应特性, 得出其780 nm相位调制量的响应时间为2 ms. 其次, 测量了LCOS的相位调制特性, 并对相位调制进行了线性化处理. 再次, 测量了用该LCOS搭建的液晶自适应光学系统的闭环和开环3 dB带宽, 它们分别为16和18 Hz. 最后, 给出了开环液晶自适应光学系统校正大气湍流的数值模拟结果, 结果表明. 系统的Strehl比由校正前的0.025上升到了校正后的0.225. 因此, 该液晶自适应光学系统可以对Greenwood频率为30 Hz以下的大气湍流进行较良好的校正.

关键词:

Abstract

In order to increase the response speed of the liquid crystal phase modulator (LCPM), a new kind of fast liquid crystal material is designed and synthesized, and a corresponding LCPM, called liquid crystal on silicon (LCOS), is fabricated. We test the phase modulation of the LCOS and examine its wavefront correction ability on static and disturbed wavefront. First, the electro-optical response is tested. The response time to a phase modulation quantity of 780 nm is 2 ms. Second, the phase modulation of the LCOS is tested and linearized. Third, the 3 dB closed-loop and open-loop disturbance rejection bandwidths of the adaptive optics system (AOS) are measured to be 16 and 18 Hz, respectively. Finally, the simulated correction of 26 Hz turbulence with the open-loop AOS is conducted. After correction, the Strehl ratio increases from 0.026 to 0.225. Therefore, with our fabricated LCOS, the liquid crystal AOS is able to correct the turbulence below 30 Hz.

Keywords:

作者及机构信息

1.
中国科学院长春光学精密机械与物理研究所应用光学国家重点实验室, 长春 130033;

2.
中国科学院研究生院, 北京 100049

基金项目: 国家自然科学基金(批准号: 60578035, 50703039)资助的课题.

Authors and contacts

1.
State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China;

2.
Graduate University of Chinese Academy of Sciences, Beijing 100049, China

Funds: Project supported by the National Natural Science Foundation of China (Grant Nos. 60578035, 50703039).

参考文献

[1]	Dayton D, Sandven S, Gonglewski J, Browne S, Rogers S, McDermott S 1997 Opt. Express 1 338
[2]	Liu C, Mu Q Q, Hu L F, Cao Z L, Xuan L 2010 Chin. Phys. B 19 064214
[3]	Love G D 1997 Appl. Opt. 36 1517
[4]	Restaino S R, Payne D M, Baker J T, Andrews J R, Teare S W, Gilbreath G C, Dayton D, Gonglewski J 2003 Proc. SPIE 5003 187
[5]	Cai D M, Ling N, Jiang W H 2008 Acta Phys. Sin. 57 897 (in Chinese) [蔡冬梅, 凌宁, 姜文汉 2008 物理学报 57 897]
[6]	Hu L, Xuan L, Mu Q, Cao Z, Li D, Liu Y, Peng Z, Lu X 2009 J. Opt. 12 045501
[7]	Love G 1993 Appl. Opt. 32 2222
[8]	Dayton D, Browne S, Gonglewski J, Restaino S 2001 Appl. Opt. 40 2345
[9]	Liu C, Hu L, Mu Q, Cao Z, Xuan L 2011 Appl. Opt. 50 82
[10]	Burns D C, Underwood I, Gourlay J, O'Hara A, Vass D G 1995 Opt. Commun. 119 623
[11]	Jiang B G, Cao Z L, Mu Q Q, Li C, Xia M L, Xuan L 2008 Opt. Precis. Eng. 16 1805 (in Chinese) [姜宝光, 曹召良, 穆全全, 李抄, 夏明亮, 宣丽 2008 光学精密工程 16 1805 ]
[12]	Cao Z, Mu Q, Hu L, Li D, Peng Z, Liu Y, Xuan L 2009 Opt. Express 17 2530
[13]	Chen S Y, Cao Z L, Hu L F, Mu Q Q, Li P F, Xuan L 2010 Opt. Precis. Eng. 18 1060 (in Chinese) [程少园, 曹召良, 胡立发, 穆全全, 李鹏飞, 宣丽 2010 光学精密工程 18 1060]
[14]	Li C H, Xian H, Jiang W H, Rao C H 2007 Acta Phys. Sin. 56 4289 (in Chinese) [李超宏, 鲜浩, 姜文汉, 饶长辉 2007 物理学报 56 4289]
[15]	Liu C, Kong N N, Hu L F, Xuan L 2009 Opt. Precis. Eng. 17 2899 (in Chinese) [刘超, 孔宁宁, 胡立发, 宣丽 2009 光学精密工程 17 2899]
[16]	Mu Q, Cao Z, Li D, Hu L, Xuan L 2008 Appl. Opt. 47 4279
[17]	Liu C, Hu L F, Mu Q Q, Cao Z L, Gao F, Wang Y W, Xuan L 2010 Opt. Precis. Eng. 18 2200 (in Chinese)[刘超, 胡立发, 穆全全, 曹召良, 高峰, 王永伟, 宣丽 2010 光学精密工程 18 2200]
[18]	Tyler G A 1994 J. Opt. Soc. Am. A 11 358
[19]	Roddier N 1990 Opt. Eng. 29 1174

施引文献

[1]	Dayton D, Sandven S, Gonglewski J, Browne S, Rogers S, McDermott S 1997 Opt. Express 1 338
[2]	Liu C, Mu Q Q, Hu L F, Cao Z L, Xuan L 2010 Chin. Phys. B 19 064214
[3]	Love G D 1997 Appl. Opt. 36 1517
[4]	Restaino S R, Payne D M, Baker J T, Andrews J R, Teare S W, Gilbreath G C, Dayton D, Gonglewski J 2003 Proc. SPIE 5003 187
[5]	Cai D M, Ling N, Jiang W H 2008 Acta Phys. Sin. 57 897 (in Chinese) [蔡冬梅, 凌宁, 姜文汉 2008 物理学报 57 897]
[6]	Hu L, Xuan L, Mu Q, Cao Z, Li D, Liu Y, Peng Z, Lu X 2009 J. Opt. 12 045501
[7]	Love G 1993 Appl. Opt. 32 2222
[8]	Dayton D, Browne S, Gonglewski J, Restaino S 2001 Appl. Opt. 40 2345
[9]	Liu C, Hu L, Mu Q, Cao Z, Xuan L 2011 Appl. Opt. 50 82
[10]	Burns D C, Underwood I, Gourlay J, O'Hara A, Vass D G 1995 Opt. Commun. 119 623
[11]	Jiang B G, Cao Z L, Mu Q Q, Li C, Xia M L, Xuan L 2008 Opt. Precis. Eng. 16 1805 (in Chinese) [姜宝光, 曹召良, 穆全全, 李抄, 夏明亮, 宣丽 2008 光学精密工程 16 1805 ]
[12]	Cao Z, Mu Q, Hu L, Li D, Peng Z, Liu Y, Xuan L 2009 Opt. Express 17 2530
[13]	Chen S Y, Cao Z L, Hu L F, Mu Q Q, Li P F, Xuan L 2010 Opt. Precis. Eng. 18 1060 (in Chinese) [程少园, 曹召良, 胡立发, 穆全全, 李鹏飞, 宣丽 2010 光学精密工程 18 1060]
[14]	Li C H, Xian H, Jiang W H, Rao C H 2007 Acta Phys. Sin. 56 4289 (in Chinese) [李超宏, 鲜浩, 姜文汉, 饶长辉 2007 物理学报 56 4289]
[15]	Liu C, Kong N N, Hu L F, Xuan L 2009 Opt. Precis. Eng. 17 2899 (in Chinese) [刘超, 孔宁宁, 胡立发, 宣丽 2009 光学精密工程 17 2899]
[16]	Mu Q, Cao Z, Li D, Hu L, Xuan L 2008 Appl. Opt. 47 4279
[17]	Liu C, Hu L F, Mu Q Q, Cao Z L, Gao F, Wang Y W, Xuan L 2010 Opt. Precis. Eng. 18 2200 (in Chinese)[刘超, 胡立发, 穆全全, 曹召良, 高峰, 王永伟, 宣丽 2010 光学精密工程 18 2200]
[18]	Tyler G A 1994 J. Opt. Soc. Am. A 11 358
[19]	Roddier N 1990 Opt. Eng. 29 1174

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