Measurement and Compensation of Laser Beam Wavefront Distortion in Atmospheric Environment

LI Jing; HUANG Liangbo; ZOU Yansheng; DAI Jiewen; DAI Xiaoxiao; LIU Chen

doi:10.13756/j.gtxyj.2026.250246

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Measurement and Compensation of Laser Beam Wavefront Distortion in Atmospheric Environment

更新时间：2026-04-20

- Measurement and Compensation of Laser Beam Wavefront Distortion in Atmospheric Environment
- Study on Optical Communications Issue 2, (2026)
- 作者机构：
  
  1.中国电子科技集团公司第五十四研究所，石家庄　050081
  2.华中科技大学　光学与电子信息学院，武汉　430074
- 作者简介：
- 基金信息：
- DOI：10.13756/j.gtxyj.2026.250246
  CLC： TN929
- Received：06 July 2025，
  
  Revised：2025-07-12，
  
  Published：10 April 2026
- 稿件说明：
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李晶，黄良博，邹炎升，等. 大气环境中激光光束波前畸变测量与补偿研究[J]. 光通信研究，2026(2): 250246.

Li J, Huang L B, Zhou Y S, et al. Measurement and Compensation of Laser Beam Wavefront Distortion in Atmospheric Environment[J]. Study on Optical Communications, 2026(2): 250246.
李晶，黄良博，邹炎升，等. 大气环境中激光光束波前畸变测量与补偿研究[J]. 光通信研究，2026(2): 250246. DOI： 10.13756/j.gtxyj.2026.250246.

Li J, Huang L B, Zhou Y S, et al. Measurement and Compensation of Laser Beam Wavefront Distortion in Atmospheric Environment[J]. Study on Optical Communications, 2026(2): 250246. DOI： 10.13756/j.gtxyj.2026.250246.

摘要

目的

自由空间光通信（FSOC）具有高保密性和可靠性，然而，大气湍流会导致光束漂移、光强起伏和相位抖动，严重降低了通信质量。目前可以采用由图像传感元件采集的光强分布重构波前相位技术实现波前的实时校正。文章的目的是完成FSOC系统的波前畸变测量与补偿。

方法

文章采用理论与实验相结合的方法，基于模式法开展关键技术研究，推导了Zernike多项式表示的波前像差恢复算法，建立了无波前传感测量的数学理论模型。

结果

实验结果表明，在弱湍流条件下，补偿后接收端功率从-16.40提升至-9.11 dBm，误码率从0.012 25降至10

-7

，信噪比由11.43提高至21.38 dB。

结论

研究证明，模式法能有效恢复波前相位和提升系统抗湍流能力，为FSOC系统提供了高精度的波前校正方案。该研究为无波前传感自适应光学（AO）系统提供了理论依据与实验验证，对提升空间激光通信质量具有重要意义。

Abstract

Objective

Free Space Optical Communication (FSOC) demonstates high confidentiality and reliability. However

atmospheric turbulence can cause beam drift

light intensity fluctuations

and phase jitter

which seriously degrades the communication performance. At present

the wavefront phase reconstruction technology of the light intensity distribution collected by an imaging device can be used to realize the real-time correction of the wavefront. The purpose of this paper is to complete the wavefront distortion measurement and compensation of the FSOC system.

Methods

In this paper

we adopt a combination of theory and experiment

and conduct key technology research based on mode method. The wavefront aberration restoration algorithm represented by Zernike polynomial is derived

and the mathematical theoretical model for wavefront-sensorless measurement is established.

Results

The experimental results show that

under the condition of weak turbulence

the receiving power increases from -16.40 to -9.11 dBm after compensation. The bit error rate decreases from 0.012 25 to 10

-7

and the signal-to-noise ratio increases from 11.43 to 21.38 dB.

Conclusion

The result proves that the mode method can effectively reconstruct the wavefront phase and improve the anti-turbulence ability of the system. It provides a high-precision wavefront correction scheme for the FSOC system. This study provides theoretical basis and experimental verification for wavefront sensing Adaptive Optics (AO) system

which is of great significance to improve the performance of space laser communication.

关键词

Keywords

references

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