一种应用于激光通信光学系统的像旋检测与消像旋装调方法

By using a modified collimator and corner prism for optical axis adjustment in a laser communication system, combined with plane mirror adjustment, the influence of traditional derotation devices on spatial layout and energy transmittance is solved, achieving efficient detection and elimination of image spin, and improving the stability and applicability of the system.

CN120628549BActive Publication Date: 2026-07-17CHANGGUANG SATELLITE TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHANGGUANG SATELLITE TECH CO LTD
Filing Date
2025-06-09
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Traditional derotation devices, such as Dowell prisms and K-mirrors, affect the spatial layout compactness and link energy transmittance in laser communication systems, and are difficult to install and adjust, resulting in reduced stability over long-term use.

Method used

Two parallel light tubes are used as detection devices. By modifying the optical path structure to add a signal transceiver module, and using a corner prism and fiber optic beam splitter to adjust the optical axis, combined with the angle adjustment of the plane mirror, image rotation detection and anti-image rotation assembly are realized.

Benefits of technology

It achieves efficient and convenient image rotation detection and de-rotation adjustment, reduces the system's space occupation and energy transmittance requirements, and improves the system's stability and applicability.

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Abstract

一种应用于激光通信光学系统的像旋检测与消像旋装调方法,属于空间激光通信技术领域,解决了采用传统的道威棱镜、K镜等消旋器件对激光通信系统空间布局紧凑性和链路能量透过率等方面产生影响的问题。分别调节左侧平行光管和右侧平行光管的位置和角度以实现共轴和检测基准传递;将被检激光通信系统置于两个平行光管之间,调节激光通信系统的转台俯仰角使激光通信系统的望远镜分别对准两个平行光管;提取并记录两个光管所发激光聚焦到激光通信系统面阵相机上的光斑质心坐标;再计算得到像旋角;调整激光通信系统中平面镜的角度并迭代检测直至像旋角减小到满足设计要求,则完成对被检激光通信系统俯仰轴像旋的调节工作。
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