一种圆棒晶体球形端面球心位置检测方法

刘海强, 汪正进, 常坤

刘海强, 汪正进, 常坤. 一种圆棒晶体球形端面球心位置检测方法[J]. 应用光学, 2015, 36(2): 282-286. DOI: Adoi:10.5768/JAO201536.0205001
引用本文: 刘海强, 汪正进, 常坤. 一种圆棒晶体球形端面球心位置检测方法[J]. 应用光学, 2015, 36(2): 282-286. DOI: Adoi:10.5768/JAO201536.0205001
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Liu Hai-qiang, Wang Zheng-jin, Chang Kun. Method for testing center position of spherical end face in round rod crystal[J]. Journal of Applied Optics, 2015, 36(2): 282-286. DOI: Adoi:10.5768/JAO201536.0205001
Citation: Liu Hai-qiang, Wang Zheng-jin, Chang Kun. Method for testing center position of spherical end face in round rod crystal[J]. Journal of Applied Optics, 2015, 36(2): 282-286. DOI: Adoi:10.5768/JAO201536.0205001
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一种圆棒晶体球形端面球心位置检测方法

  • 西安科技大学 通信与信息工程学院,陕西 西安 710054

基金项目: 

西安科技大学启动金项目（2013QDJ044）

详细信息
    通讯作者:

    刘海强（1983-），男，陕西宝鸡人，博士，讲师，主要从事二极管抽运固体激光器方面的研究工作。 Email：liuhaiqiang001@163.com

  • 中图分类号: TN248.1

Method for testing center position of spherical end face in round rod crystal

  • School of Communication and Information Engineering,Xi-an University of Science and Technology,Xi-an 710054,China

摘要

    摘要
  • 摘要: 固体激光器中，激光晶体的加工工艺会对输出光整体质量产生影响，针对圆棒晶体球形端面球心位置偏离中心轴的缺陷，提出一种晶体端面球心位置测量方法.通过理论分析测试光路传输矩阵，求解球形端面反射光的位置与角度关系，得到圆棒晶体球形端面球心位置与入射光高度及球形端面反射光斑位置间的关系。实验获得测试光在晶体端面不同入射高度时光阑上球形端面反射光斑距离通光孔的距离，计算球形端面球心位置与中心轴的偏离量。对两种规格4根晶体进行测量，2根-3晶体与中心轴的垂直距离分别为2.55 mm、1.1 mm，2根-4晶体与中心轴的垂直距离为3.25 mm、0.9 mm，分析了晶体球形端面球心位置工艺误差产生的原因。
    Abstract: In solid-state laser, the processing technology of laser crystal has an important impact on the total quality of the output laser. For the defects of the deviation of the center position of spherical end face from the central axis in round rod crystal, a method for testing the center position of spherical end face was put forward. Through theoretical calculation of the transmission matrix in the optical path and solving the changes in position and angle of the reflection light, the relationship between deviation of the center position from the central axis and the distance from the spot position to the hole of the aperture was obtained. In experiment the distance from the spot position to the hole of the aperture was measured when the testing laser was debugged to the different positions on the plane surface of the crystal. And the deviation of the center position of the spherical end-face on the central axis of the crystal was calculated at last. The center positions of spherical end face were tested for two different kinds of crystals. The vertical distances of the center position of spherical to the central axis for two -3 crystals are 2.55 mm and 1.1 mm, and 3.25 mm and 0.9 mm for two -4 crystals. Moreover, the possible cause of the error was analyzed.
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