星载高稳定性线型激光器
Spaceborne High-Stability Line Laser
宋铁强 1万渊 1辛国锋 2周馨 3方苏 2黄建新 3刘颖 3刘经启 3侯霞 4陈卫标 4Wang Fang5
作者信息
- 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;王之江激光创新中心,上海 201800;中国科学院大学材料与光电研究中心,北京 100049
- 2. 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;王之江激光创新中心,上海 201800
- 3. 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
- 4. 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;上海市全固态激光器及应用技术重点实验室,上海 201800;王之江激光创新中心,上海 201800;中国科学院大学材料与光电研究中心,北京 100049
- 5. Aerospace Laser Technology and System Department,Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,China;Wangzhijiang Innovation Center for Laser,Shanghai 201800,China
- 折叠
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25 μrad,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.
Abstract
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 25 μrad.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Key words
spaceborne laser/distortion measurement/directional stability/line laser/radar antenna引用本文复制引用
出版年
2024
NETL
NSTL
万方数据