基于光压原理的大功率激光功率测量  

High-power laser power measurement based on principle of light pressure

作　　者：于东钰[1] 俞兵[1] 吕春莉 董再天 杨科 宫经珠[1] 段园园[1] 陈超[1] 张魁甲[1] 黎高平[1] 郑波 YU Dongyu;YU Bing;LYU Chunli;DONG Zaitian;YANG Ke;GONG Jingzhu;DUAN Yuanyuan;CHEN Chao;ZHANG Kuijia;LI Gaoping;ZHENG Bo(Xi'an Institute of Applied Optics,Xi'an 710065,China;Xi'an Institute of Aerospace Propulsion Technology,Xi'an 710065,China)

机构地区：[1]西安应用光学研究所,陕西西安710065 [2]西安航天动力技术研究所,陕西西安710025

出　　处：《应用光学》2022年第4期798-802,共5页Journal of Applied Optics

基　　金：国防计量技术基础科研项目(JSJL2019208B001)。

摘　　要：大功率激光功率测量常用量热法,但溯源复杂。介绍了具有较高测量精度的基于光压原理的大功率激光功率测量方法,设计了利用1/10^(5)精度天平大功率激光测量实验,测试了基于GaAs半导体材料制作的反射镜的反射率及损伤阈值,确定了基于GaAs半导体材料反射镜的相关性能。得到了普通实验室条件下的功率测量重复性及线性,验证了1/10^(5)精度天平用于大功率激光测量的可行性。通过实验结果结合理论计算,得出利用1/10^(5)精度天平的光压测量功率的测量上限可以达到3×10^(4)W以上。The calorimetry is commonly used for high-power laser power measurement,but the traceability is complicated.The high-power laser power measurement method based on principle of light pressure with higher measurement accuracy was introduced,the measurement experiment using a balance with an accuracy of 1/10^(5) was designed,the reflectivity and damage threshold of the mirror based on GaAs semiconductor materials were tested,and the properties of mirrors based on GaAs semiconductor materials were determined.Under ordinary laboratory conditions,the power measurement repeatability and linearity were obtained,and the feasibility of balance with an accuracy of 1/10^(5) for high-power laser measurement was verified.Through the experimental results combined with theoretical calculations,it is concluded that the upper limit of the measurement power of light pressure can reach more than 3×10^(4) W by using the balance with an accuracy of 1/10^(5).

关 键 词：大功率激光 光压 天平 损伤阈值 

分 类 号：TN206[电子电信—物理电子学]