Author:
Liu Chao ,Hu Li-Fa ,Cao Zhao-Liang ,Mu Quan-Quan ,Peng Zeng-Hui ,Xuan Li , ,
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.
Publisher
Acta Physica Sinica, Chinese Physical Society and Institute of Physics, Chinese Academy of Sciences
Subject
General Physics and Astronomy
Reference19 articles.
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]
Cited by
2 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献