[1]杜永兆.利用Mach-Zehnder点衍射干涉仪的激光复振幅实时重建方法[J].华侨大学学报(自然科学版),2017,38(5):699-705.[doi:10.11830/ISSN.1000-5013.201606119]
 DU Yongzhao.Real-Time Complex Amplitude Reconstruction Method Using Mach-Zehnder Point Diffraction Interferometer[J].Journal of Huaqiao University(Natural Science),2017,38(5):699-705.[doi:10.11830/ISSN.1000-5013.201606119]
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利用Mach-Zehnder点衍射干涉仪的激光复振幅实时重建方法()
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《华侨大学学报(自然科学版)》[ISSN:1000-5013/CN:35-1079/N]

卷:
第38卷
期数:
2017年第5期
页码:
699-705
栏目:
出版日期:
2017-09-20

文章信息/Info

Title:
Real-Time Complex Amplitude Reconstruction Method Using Mach-Zehnder Point Diffraction Interferometer
文章编号:
1000-5013(2017)05-0699-07
作者:
杜永兆
华侨大学 工学院, 福建 泉州 362021
Author(s):
DU Yongzhao
College of Engineering, Huaqiao University, Quanzhou 362021, China
关键词:
激光光束质量 复振幅重建 点衍射干涉仪 M2因子
Keywords:
laser beam quality complex amplitude reconstruction point diffraction interferometer M 2 factor
分类号:
TN401
DOI:
10.11830/ISSN.1000-5013.201606119
文献标志码:
A
摘要:
在充分利用Mach-Zehnder自参考干涉系统无需设置专门参考光优点的基础上,提出一种激光复振幅实时重建方法.在参考臂和测试臂上分别设置放大倍率为s且互为倒置的望远镜系统,使得经针孔滤波、准直后的参考光被放大s2倍形成波前与振幅(或强度)皆近似于一个平面的理想参考光.研究表明:利用傅里叶分析法从干涉图中便可直接重建待测激光复振幅分布,具有结构简单和测量快速的优点.基于该系统分别对静态和动态输出光场进行复振幅重建实验,并由此求得相应的M2因子,从而验证该方法在复杂光场光束质量实时检测的可行性.
Abstract:
Considering the advantagesof the characteristicssaid as without a special reference wave of Mach-Zehnder point diffraction interference system(MZ-PDI), a real-time complex amplitude reconstruction method is presented. Two telescopes with the magnification s are placed at the reference arm and test arm in MZ-PDI, respectively. The telescope in one arm is inverted with respect to the other one. The reference wave is enlarged S=s2 times after filteredby thepinhole filter, consequently, both of the reference wavefrontphaseand reference amplitude(or intensity profile)can be approximately seen as a plane and it services as an ideal reference wave. Thenthe complex amplitude of the test beam can be directly extracted from a single interferogram using the Fourier transform fringe analysis method. The proposed method can provide a simple and fast solutionwhile still maintains high accuracy for reconstructing complex amplitude. The experiments of the static and dynamic output optical wave are demonstrated based on the proposed MZ-PDI system, meanwhile the beam quality M2 factor of the test beam are obtained from the reconstructed complex amplitude. The experimental results showed that feasibility of the proposed system for real-time beam characterization of the complex optical beams.

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备注/Memo

备注/Memo:
收稿日期: 2016-06-06
通信作者: 杜永兆(1985-),男,讲师,博士,主要从事激光光束质量评价与测量、光学成像及光电图像处理及应用的研究.E-mail:yongzhaodu@126.com.
基金项目: 国家自然科学青年基金资助项目(61605048); 福建省自然科学基金面上资助项目(2016J01300); 福建省科技创新平台资助项目(2013H2002); 华侨大学高层次人才科研启动项目(600005-Z15Y0073)
更新日期/Last Update: 2017-09-20