Performance Evaluation of Optical-Beam Stabilization Platforms With Different Supports Used in Large-Aperture Electro-Optical System

被引：0
|
作者：
Wang, Yutang [1 ,2 ]
Jia, Ping [1 ,2 ]
Wang, Zhongshi [1 ]
Wang, Fuchao [1 ]
Tan, Songnian [1 ]
Tian, Dapeng [1 ,2 ]
机构：
[1] Chinese Acad Sci, Changchun Inst Opt & Fine Mech & Phys, Key Lab Airborne Opt Imaging & Measurement, Changchun 130033, Jilin, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
来源：
IEEE PHOTONICS JOURNAL | 2022年 / 14卷 / 02期
基金：
美国国家科学基金会;
关键词：
Image quality; optical-beam jitter; optical-beam stabilization platform; optical-beam stability performance; FAST-STEERING-MIRROR; SUPPRESSION; BANDWIDTH; DESIGN; JITTER;
D O I：
10.1109/JPHOT.2022.3161449
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Optical-beam stabilization platform (OBSP) provides high-precision inertial reference for measurement of full link optical-beam jitter in large-aperture electro-optical systems. To ensure that its optical-beam stability meets system alignment needs, performance evaluation of OBSP is necessary. Considering two OBSPs with flexible and rigid support, their optical-beam stability performance and effect on image quality are evaluated and compared via theoretical and experimental means. The results reveal that under same sensor and control algorithm conditions, the two OBSPs perform well on dynamic-frequency characteristics and two-axis motion decoupling, they can achieve dynamic optical-beam stabilization accuracy of 7.934 mu rad and 5.762 mu rad under 0.5-100Hz wide-band excitation, respectively. Moreover, optical systems equipped with OBSPs demonstrate better imaging performance (MTF value of 21% at 50 1p/mm with stable residuals of less than 7 mu rad). The findings of this study provide a ready reference for the design of meter level large-aperture electro-optical systems for applications in laser communication, aerial imaging, etc.
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页数：10
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