光学技术, 2012, 38 (5): 588, 网络出版: 2012-10-08
基于Wollaston棱镜的大角度液晶光束偏转系统
A wide-angle beam steering system based on Wollaston prisms
大角度光束偏转 Wollaston棱镜 空间光通信 液晶空间光调制器 wide-angle beam steering Wollaston prisms space laser communication liquid crystal spatial light modulator
摘要
设计了一种能够应用于空间光通信的大角度高精度光束偏转系统。系统采用液晶空间光调制器(LCSLM)实现小角度光束偏转, 采用多Wollaston棱镜级联实现角度放大。介绍了LCSLM和Wollaston棱镜的光束偏转原理, 并对大角度高精度光束偏转系统进行了仿真分析。仿真结果表明系统能够实现角度范围为±13.25°的光束偏转。国内首次提出运用Wollaston棱镜来实现大角度的光束偏转。
Abstract
A wide-angle high-resolution beam steering system applying in space laser communication is designed. Liquid crystal spatial light modulator(LCSLM) to achieve narrow-angle beam steering is selected, and then multi-stages Wollaston prisms to reach angle-amplified is adopted. The beam steering principle of the LCSLM and the Wollaston prisms is introduced, and the simulation and analysis of the wide-angle high-resolution beam steering system is presented. The simulative results show that this beam steering system can achieve the angle range. It’s the first time to apply Wollaston prisms in wide-angle beam steering system domestically.
肖文奔, 黄永梅, 吴琼雁, 张彩. 基于Wollaston棱镜的大角度液晶光束偏转系统[J]. 光学技术, 2012, 38(5): 588. XIAO Wenben, HUANG Yongmei, WU Qiongyan, ZHANG Cai. A wide-angle beam steering system based on Wollaston prisms[J]. Optical Technique, 2012, 38(5): 588.
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