一种自适应抑制受激布里渊散射的方法、系统及激光器
By acquiring the reflected light signal in real time and using a genetic algorithm to optimize the waveform parameters of the phase modulation signal, the problem of reduced suppression effect of stimulated Brillouin scattering in high-power lasers is solved, realizing adaptive and intelligent control of the laser and improving the stability and safety of the system.
CN121813098BActive Publication Date: 2026-07-17COGNITIVE PHOTONICS (BEIJING) LASER TECHNOLOGY CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- COGNITIVE PHOTONICS (BEIJING) LASER TECHNOLOGY CO LTD
- Filing Date
- 2026-02-15
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
Existing technologies cannot adapt to environmental changes in high-power lasers, resulting in a decrease in the suppression effect of stimulated Brillouin scattering and poor system stability and reliability.
Method used
An adaptive method for suppressing stimulated Brillouin scattering (SBS) is adopted. By acquiring the returned light signal in real time, the waveform parameters of the phase modulation signal are iteratively adjusted using optimization algorithms such as genetic algorithms, thereby achieving dynamic sensing and optimization of SBS.
Benefits of technology
It achieves real-time and intelligent suppression of SBS, improves the stability and safety of the laser under complex working conditions, and enhances the system's adaptability and flexibility.
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Figure CN121813098B_ABST
Abstract
一种自适应抑制受激布里渊散射的方法、系统及激光器，该方法包括：基于信号集合中的第一相位调制信号对目标激光进行相位调制得到优化激光；获取当前系统状态下该优化激光的回返光信号，计算第一相位调制信号的第一目标函数的值，第一目标函数的值与第一预设优化维度相关，第一预设优化维度为优化SBS抑制效果，或者，第一预设优化维度包括优化SBS抑制效果和优化展宽后的预估光谱宽度；基于预设优化算法，以第一预设优化维度为目标，根据信号集合中各相位调制信号对应的第一目标函数的值，迭代调整相位调制信号的波形参数，以更新信号集合；迭代优化结束后输出使得第一预设优化维度最优的波形参数作为最优解。由此，实现动态寻优，提高SBS抑制效率。
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