Study on Algorithm of Beam Quality Correction of Airborne Laser Based on Adaptive Optics

WANG Qiushi; ZHANG Yizhuo; GU Haidong

doi:10.16080/j.issn1671–833x.2018.16.080

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Study on Algorithm of Beam Quality Correction of Airborne Laser Based on Adaptive Optics

更新时间：2025-10-30

- Study on Algorithm of Beam Quality Correction of Airborne Laser Based on Adaptive Optics
- Aeronautical Manufacturing Technology Vol. 61, Issue 16, Pages: 80-84(2018)
- 作者机构：
  
  1. 中国航空制造技术研究院,北京,100024
  2. 中国科学院高能物理研究所,北京,100049
- 作者简介：
- 基金信息：
- DOI：10.16080/j.issn1671–833x.2018.16.080
  CLC：
- Published：2018
- 稿件说明：
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王秋实，张亦卓，顾海栋. 基于自适应光学的机载激光光束质量校正算法研究[J]. 航空制造技术, 2018, 61(16): 80-84.

WANG Qiushi， ZHANG Yizhuo， GU Haidong. Study on Algorithm of Beam Quality Correction of Airborne Laser Based on Adaptive Optics[J]. Aeronautical Manufacturing Technology, 2018, 61(16): 80-84.
王秋实，张亦卓，顾海栋. 基于自适应光学的机载激光光束质量校正算法研究[J]. 航空制造技术, 2018, 61(16): 80-84. DOI： 10.16080/j.issn1671–833x.2018.16.080.

WANG Qiushi， ZHANG Yizhuo， GU Haidong. Study on Algorithm of Beam Quality Correction of Airborne Laser Based on Adaptive Optics[J]. Aeronautical Manufacturing Technology, 2018, 61(16): 80-84. DOI： 10.16080/j.issn1671–833x.2018.16.080.

摘要

机载激光受大气光学效应影响较为明显，研究以自适应光学为代表的光束整形系统，将有效提高激光器作用于目标位置的光束质量。利用光路中的自适应光学变形镜，以能量反馈方式对机载激光发射单元出射的激光光束质量进行回路校正，是一种可行方案。采用以随机并行梯度下降法（SPGD法）为代表的优化算法作用于变形镜，实现返回光能量最大，从而实现目标上的光束质量提升。通过算法优化及全局收敛仿真，探求一种较快速收敛的实用性方法，用于连续激光和重复性好的脉冲激光的光束质量校正。上述算法的仿真研究，有助于机载条件下的激光在实际大气环境下的效能提升，具有一定的实用价值。

Abstract

Airborne laser is influenced by atmospheric optical effect obviously. Thus it is useful to study the beam shaping system represented by adaptive optics

which would effectively improve the beam quality of laser at the target position. It is a feasible solution to use an adaptive mirror in the optical path by energy feedback

to calibrate the laser beam quality emitted by the airborne laser unit. An optimization algorithm

represented by the Stochastic Parallel Gradient Descent method

SPGD method

was applied in the adaptive mirror. It realized the maximum energy of return light

so as to improve the beam quality on the target. By optimizing SPGD algorithm and simulating a global convergence

a practical method of rapid convergence was proposed for beam quality correction of continuous laser and reproducible pulse laser. The simulation of the above algorithm is helpful to improve the performance of laser under an airborne condition

which would have a certain practical value.

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