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星载高稳定性线型激光器

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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.
Spaceborne High-Stability Line Laser
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.

spaceborne laserdistortion measurementdirectional stabilityline laserradar antenna

宋铁强、万渊、辛国锋、周馨、方苏、黄建新、刘颖、刘经启、侯霞、陈卫标、Wang Fang

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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

上海市全固态激光器及应用技术重点实验室,上海 201800

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

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星载激光器 变形测量 指向稳定性 线型激光 雷达天线

2024

激光与光电子学进展
中国科学院上海光学精密机械研究所

激光与光电子学进展

CSTPCD北大核心
影响因子:1.153
ISSN:1006-4125
年,卷(期):2024.61(23)