阵列菲涅耳波带片波前探测性能研究

J4 ›› 2010, Vol. 27 ›› Issue (3): 276-280.

阵列菲涅耳波带片波前探测性能研究

王薇¹谢宇¹伍波²

1. 安徽省淮北煤炭师范学院物理与电子信息学院
2. 淮北煤炭师范学院物理系

收稿日期:2009-07-27 修回日期:2009-10-28 出版日期:2010-05-28 发布日期:2010-05-11
作者简介:王薇，女（1975-），硕士，毕业于四川大学光电系，现主要从事光电信息处理的研究工作。 wylwwhn@163.com
基金资助:
安徽省教育厅自然科学研究项目（KJ2007B059）;国家自然科学基金（50706015）资助课题

Study on the Wavefront Sensing Characteristic of the Array Fresnel Zone Plates

WANG Wei¹XIE Yu¹ WU Bo²

1 School of Physics and Electronic Information, Huaibei Coal Industry Teachers College, Huaibei 235000, China;
2 School of Electronics and Information, Sichuan University, Chengdu 610064, China

Received:2009-07-27 Revised:2009-10-28 Published:2010-05-28 Online:2010-05-11

摘要/Abstract

摘要：

在高功率激光系统中，激光束小尺度畸变波前探测是实现激光束中频段波前补偿与控制的重要前提。采用阵列菲涅耳波带片作为激光束波前传感的子孔径分割器，研究其聚焦性能，讨论了波带片的结构如阵列数目和阵列尺寸对波前探测精度的影响。仿真结果表明，选取合适的波带片结构参数可以使小尺度畸变波前的重构误差小于十分之一个波长。为了检测阵列菲涅耳波带片作为波前传感器检测波前畸变的性能，实现小尺度波前畸变检测的目的，构建了激光波前畸变检测光路系统。实验结果表明了阵列菲涅耳波带片检测波前畸变的可行性和准确性.

关键词: laser techniques∣wavefront sensing characteristic∣array Fresnel zone plates∣wavefront sensor∣small-scale phase distroted wavefront

Abstract:

In high power laser system,small-scale phase distorted wavefront measurement is necessary to compensate and control the wavefront of laser beam with intermediate frequency. As wavefront sensor, array Fresnel zone plates split wavefront , and its focus characteristic was investigated. Also, the influence of the structure of array Fresnel zone plates on wavefront reconstruction was discussed. Simulation results show that the error of wavefront reconstruction is less than one-tenth wavelength with suitable optical parameters. The optical system for the measurement of distorted wavefront was built to study on the sensing characteristic of array Fresnel zone plates.Experimental results prove the feasibility and effectiveness of the wavefront measurement.

Key words: 激光技术∣波前探测性能∣阵列菲涅耳波带片∣波前传感器∣小尺度相位畸变

王薇, 谢宇,伍波 . 阵列菲涅耳波带片波前探测性能研究[J]. J4, 2010, 27(3): 276-280.

WANG Wei, XIE Yu, WU Bo. Study on the Wavefront Sensing Characteristic of the Array Fresnel Zone Plates[J]. J4, 2010, 27(3): 276-280.