星载高稳定性线型激光器  

Spaceborne High-Stability Line Laser

作　　者：宋铁强 万渊[1,3,4] 辛国锋 周馨[1] 方苏 黄建新 刘颖 刘经启 侯霞[1,2,3,4] 陈卫标 Song Tieqiang;Wan Yuan;Xin Guofeng;Zhou Xin;Wang Fang;Huang Jianxin;Liu jingqi;Hou Xia;Chen Weibiao(Aerospace Laser Technology and System Department,Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,China;Shanghai Key Laboratory of All Solid-State Laser and Applied Techniques,Shanghai 201800,China;Wangzhijiang Innovation Center for Laser,Shanghai 201800,China;Center of Materials Science and Optoelectronics Engineering,University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]中国科学院上海光学精密机械研究所空天激光技术与系统部,上海201800 [2]上海市全固态激光器及应用技术重点实验室,上海201800 [3]王之江激光创新中心,上海201800 [4]中国科学院大学材料与光电研究中心,北京100049

出　　处：《激光与光电子学进展》2024年第23期289-293,共5页Laser & Optoelectronics Progress

基　　金：国家重点研发计划(2020YFC2200300,2020YFC2200303)。

摘　　要：本文设计了一款可输出一字线型的星载线型激光器,该激光器可用于合成孔径雷达天线阵列面热变形的在轨测量。通过消热结构设计和抗力学设计,该激光器可满足空间应用的抗力学和热真空环境的要求,其在4.5 m内光线宽度不超过3 mm,连续工作5 min的指向变化小于25μrad,可在0~30℃范围内正常工作。所设计的激光器具有平面度高、覆盖范围大、稳定性高等特点,为今后大尺寸结构变形在轨测量提供了新的技术参考。This article presents the design of a spaceborne line laser capable of projecting a single line shape for in-orbit measurement of thermal deformations on the surfaces of synthetic aperture radar antenna arrays.The laser incorporates a heat dissipation structure and adheres to resistance theory,making it suitable for the rigorous thermal vacuum environments encountered in space.Its beam width remains under 3 mm at a distance of 4.5 m,and the directional shift following continuous operation for 5 min is less than 25μrad.Functioning effectively within a temperature range of 0-30℃,the laser exhibits high flatness,broad coverage,and remarkable stability.This design offers a novel technical reference for future in-orbit measurements of large-scale structural deformations.

关 键 词：星载激光器 变形测量 指向稳定性 线型激光 雷达天线 

分 类 号：TN242[电子电信—物理电子学]