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| 基于液晶空间光调制器的光束偏转控制 | |
| 引用本文： | 张彩,黄永梅,亓波,边疆,吴琼雁. 基于液晶空间光调制器的光束偏转控制[J]. 中国激光, 2011, 0(9) |
| 作者姓名： | 张彩 黄永梅 亓波 边疆 吴琼雁 |
| 作者单位： | 中国科学院光电技术研究所;中国科学院研究生院; |
| 基金项目： | 中国科学院知识创新工程重大项目(YYYJ-0815)资助课题 |
| 摘 要： | 液晶空间光调制器(LCSLM)通过实时调制波前倾斜实现光束偏转,与传统的快反镜相比,具有非机械调制、体积小、功耗低、轻巧灵敏等优点,可应用于空间光通信中。简单介绍了液晶实现光束偏转的原理,并测试了LCSLM的调制特性,根据调制特性设计基于LCSLM的光束偏转闭环系统。实验结果表明LCSLM能有效地抑制光束抖动,使相对误差小于±1.75%。分析了LCSLM的衍射效率对于光束质量的影响及液晶响应速度、系统传输时延和算法复杂度对控制系统带宽的制约。 |
| 关 键 词： | 光学器件 液晶空间光调制器 光束偏转 倾斜 抖动抑制 衍射效率 |
Beam Steering Control Based on Liquid Crystal Spatial Light Modulator |
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| Zhang Cai, Huang Yongmei Qi Bo Bian Jiang Wu QiongyanInstitute of Optics , Electronics,Chinese Academy of Sciences,Chengdu,Sichuan ,ChinaGraduate University of Chinese Academy of Sciences,Beijing,,China. Beam Steering Control Based on Liquid Crystal Spatial Light Modulator[J]. Chinese Journal of Lasers, 2011, 0(9) | |
| Authors: | Zhang Cai Huang Yongmei Qi Bo Bian Jiang Wu QiongyanInstitute of Optics Electronics Chinese Academy of Sciences Chengdu Sichuan ChinaGraduate University of Chinese Academy of Sciences Beijing China |
| Affiliation: | Zhang Cai1,2 Huang Yongmei1 Qi Bo1 Bian Jiang1 Wu Qiongyan11Institute of Optics and Electronics,Chinese Academy of Sciences,Chengdu,Sichuan 610209,China2Graduate University of Chinese Academy of Sciences,Beijing,100049,China |
| Abstract: | Liquid crystal spatial light modulator(LCSLM) can realize beam steering by modulating wavefront tilt.Compared with fast steering mirror(FSM),LCSLM is smaller,lighter and lower power consumptive in a non-mechanical way.Thus,it can be applied as a beam steering control device in laser communication.The principle of liquid crystal beam steering is introduced.A close-loop control experiment is designed based on LCSLM to realize beam steering according to the modulation characteristic of LCSLM tested.The experim... |
| Keywords: | optical devices liquid crystal spatial light modulator beam steering tilt jitter suppression diffractive effect |
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