| 液晶闪耀光栅波前相位测量方法 |
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| 引用本文： | 郑春艳,杨若夫,徐林,孔令讲,敖明武,杨平,黄子强,吴健.液晶闪耀光栅波前相位测量方法[J].中国激光,2011(10). |
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| 作者姓名： | 郑春艳 杨若夫 徐林 孔令讲 敖明武 杨平 黄子强 吴健 |
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| 作者单位： | 电子科技大学光电信息学院;电子科技大学电子工程学院;中国科学院光电技术研究所自适应光学重点实验室; |
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| 基金项目： | 国家“十一五”预研项目(H04010201)资助课题 |
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| 摘 要： | 电控液晶光栅在卫星激光通信、激光雷达的光束指向应用中具有体积小、光束灵活可控的优势。而获取电控液晶光栅对光波前的相位调制分布则是评价液晶光栅性能的关键。提出液晶光栅调制波前相位的共轭移相干涉测量技术,通过实验对比验证了实测远场分布与近场相位计算远场分布的一致性,由此可实现由近场相位测量的光束指向控制新方法。
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| 关 键 词： | 测量 波前相位 共轭移相干涉仪 液晶光栅 |
Wave-Front Measurement Approach of Liquid-Crystal Blazed Gratings |
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| Zheng Chunyan Yang Ruofu Xu Lin Kong Lingjiang Ao Mingwu Yang Ping Huang Ziqiang Wu Jian.Wave-Front Measurement Approach of Liquid-Crystal Blazed Gratings[J].Chinese Journal of Lasers,2011(10). |
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| Authors: | Zheng Chunyan Yang Ruofu Xu Lin Kong Lingjiang Ao Mingwu Yang Ping Huang Ziqiang Wu Jian |
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| Affiliation: | Zheng Chunyan1 Yang Ruofu1 Xu Lin1 Kong Lingjiang2 Ao Mingwu1 Yang Ping3 Huang Ziqiang1 Wu Jian1 (1Opto-Electric Information School,University of Electronic Science and Technology of China,Chengdu,Sichuan 610054,China 2College of Electronic Engineering,China 3Key Laboratory for Adaptive Optics,Institute of Optics and Electronics,Chinese Academy of Sciences,Sichuan 610209,China) |
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| Abstract: | Electronically controlled liquid-crystal gratings have advantages such as small volume and agile optical beam steering in satellite laser communication and laser radar.However,the key issue for performance evaluation of liquid-crystal gratings is to obtain the modulated beam wavefront by it.Conjugation phase shifting interferometry measuring liquid-crystal gratings wavefront is presented.In the experiment,the measured far-field intensity is in accordance with the theoretic analysis on near-field wavefront.T... |
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| Keywords: | measurement wavefront conjugation phase shifting interferometry liquid-crystal gratings |
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