| 双向剪切干涉法测量高斯光束远场发散角 |
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| 引用本文： | 孙东平,刘秉琦,华文深,骆新新.双向剪切干涉法测量高斯光束远场发散角[J].光子学报,2008,37(11):2327-2331. |
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| 作者姓名： | 孙东平 刘秉琦 华文深 骆新新 |
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| 作者单位： | 1. 军械工程学院,光学与电子工程系,石家庄,050003;75225部队,广东,潮州,515728
2. 军械工程学院,光学与电子工程系,石家庄,050003 |
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| 摘 要： | 对双向剪切干涉理论和高斯光束传输特性进行了研究.提出了一种测量高斯光束远场发散角的方法：利用双向剪切干涉仪分别在激光传输路径上两个特定位置测出波前曲率半径,然后由曲率半径得出发散角.通过理论推导建立了相应的检测模型,并对模型进行了实验验证.实验测量和误差分析表明该方法的测量准确度能达到10″；发散角测量准确度的主要影响因素为干涉条纹宽度测量误差.
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| 关 键 词： | 光学测量 双向剪切干涉 发散角 高斯光束 |
| 收稿时间： | 2007-06-28 |
| 修稿时间： | 2007-08-25 |
Measurement of Far-field Divergence Angle of Gaussian Geam Based on Double-shearing Interference |
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| SUN Dong-ping,LIU Bing-qi,HUA Wen-shen,LUO Xin-xin.Measurement of Far-field Divergence Angle of Gaussian Geam Based on Double-shearing Interference[J].Acta Photonica Sinica,2008,37(11):2327-2331. |
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| Authors: | SUN Dong-ping LIU Bing-qi HUA Wen-shen LUO Xin-xin |
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| Institution: | SUN Dong-ping1,2,LIU Bing-qi1,HUA Wen-shen1,LUO Xin-xin1(1 Department of Optical , Electronic Engineering,Ordnance Engineering College,Shijiazhuang 050003,China)(2 Unit 75225 of PLA,Chaozhou,Guangdong 515728,China) |
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| Abstract: | Propagation characteristics of Gaussian beam and double-shearing interference theories were studied.A method for measuring the far-field divergence angle of Gaussian beam was presented.A double-shearing interferometer was used in this method to measure wavefront radiuses of curvature at two certain positions in the path of the laser beam.Then,the divergence angle can be obtained from the radiuses.The measurement model was built by theoretical derivation and verified by experiment.Experimental measurement an... |
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| Keywords: | Optical measurement Double-shearing interference Divergence angle Gaussian beam |
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