A high-energy laser thermal-induced optical axis prediction and compensation method and system

By acquiring multi-source time-series state data in a high-energy laser system and utilizing advanced data fusion and prediction models, collaborative compensation for optical axis drift and wavefront distortion was achieved. This solved the problems of insufficient state characterization and inadequate control integration in existing technologies, and improved the system's stability and compensation efficiency.

CN123047113APending Publication Date: 2026-11-06JILIN HENGHUI PHOTOELECTRIC TECH CO LTD
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Patent Information

Application Number
CN202611542931.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-10-08
Publication Date
2026-11-06

AI Technical Summary

Technical Problem

Existing high-energy laser optical axis compensation schemes fail to fully integrate multi-source temporal state data, resulting in insufficient state characterization and inadequate connection between prediction and feedback control in thermally induced optical axis drift compensation, making it difficult to achieve stable output of high-energy laser systems.

Method used

By collecting temperature status, laser operating status, and historical control status from multiple locations, and using a long short-term memory network and a Transformer coding layer to fuse the data, the system predicts future wavefront error and optical axis drift, and generates feedforward and feedback compensation values ​​to control the fast deflection mirror and deformable mirror respectively, thereby achieving coordinated compensation.

Benefits of technology

It improves the completeness of characterization of the continuous operating thermal state and optical axis changes of high-energy laser systems, reduces compensation lag, enhances the synergy between low-order optical axis shift and high-order wavefront distortion, and reduces the cumulative impact of prediction errors.

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Abstract

A method and system for predicting and coordinating high-energy laser thermally induced optical axis compensation is disclosed, belonging to the field of high-energy laser optical compensation technology. To address the problems of insufficient characterization of thermally induced optical axis drift compensation state and inadequate integration of prediction and feedback control during continuous high-energy laser operation, this invention collects temperature status, laser operating status, historical control status, residual wavefront error, and optical axis offset information, fuses them to obtain multi-source time-series state data, predicts future wavefront error and future optical axis drift, and generates feedforward compensation and feedback compensation amounts for fast deflection mirrors and deformable mirrors. These compensate for low-order optical axis offset and high-order wavefront distortion, respectively, improving the targeting and continuity of thermally induced optical axis compensation. This method is applicable to fields such as high-energy laser optical compensation, adaptive optics control, laser communication, and high-power laser equipment.
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