He-Ne激光光束远场发散角的测量研究  

Reseach on Measurement of Far-field Divergence Angle of He-Ne Laser Beam

作　　者：赵小侠 袁宇博 杨小龙 马进如 刘晗 贺俊芳 杨森林 ZHAO Xiao-xia;YUAN Yu-bo;YANG Xiao-long;MA Jin-ru;LIU Han;HE Jun-fang;YANG Sen-lin(School of Mechanical and Material Engineering,Xi'an University,Xi'an 710065,China)

机构地区：[1]西安文理学院机械与材料工程学院,西安710065

出　　处：《西安文理学院学报（自然科学版）》2022年第3期70-74,共5页Journal of Xi’an University(Natural Science Edition)

基　　金：西安文理学院三年行动计划项目(21XJZZ0001-03);光电教指分委2019年教育教学研究项目(gdyljs16);“新工科建设与实践”教育教学研究项目(gdxgk12);陕西省科技成果转移推广计划(2020CGXNG-015);西安文理学院线下课程建设项目(JY2022KGD02,JY2021KGD03)。

摘　　要：对He-Ne激光光束远场发散角进行了实验测量研究,分别采用刀口法、拟合法和CCD摄像法.刀口法测量实验装置简单,但是实验测量数据量较大;拟合法可以克服刀口法中可能出现的测量误差,提高测量的精度;CCD摄像法实验简单数据量小,但是衰减片的使用则有可能引起光斑的畸变,也会影响实验结果.In this paper,the far-field divergence angle of He⁃Ne laser beam is experimentally measured by knife edge method,fitting method and CCD camera method.The experimental de⁃vice of knife edge method is simple,but the amount of experimental measurement data is large.The fitting method can overcome the possible measurement error in the knife edge method and improve the measurement accuracy.The experiment of CCD camera method is simple and the a⁃mount of data is small,but the use of attenuator may cause spot distortion and affect the experi⁃mental results.

关 键 词：激光光束发散角 刀口法 拟合法 CCD摄像法 

分 类 号：TN247[电子电信—物理电子学]