强激光与粒子束2024，Vol.36Issue(6)：1-23,23.DOI:10.11884/HPLPB202436.230426
大规模激光相干合成主动相位控制技术研究进展
Progress in active phase control for large-scale coherent laser beam combining
摘要
Abstract
Large-scale coherent beam combining is one of the effective techniques to break through the limit of a single laser,and obtain laser with extreme characteristics such as ultra-high peak/average power,ultra-high pulse energy,ultra-high spatial/spectral brightness,and the key to large-scale coherent beam combining is active phase control.Active phase control technology can control the phase of each beam actively,compensate for coherence degradation and efficiency reduction caused by phase noise,and realize high-quality combined laser.Since the proposal of coherent beam combining technology,researchers have developed a variety of active phase control methods for phase correction,among which active phase control methods suitable for large-scale coherent laser beam combining have developed rapidly.In this paper,active phase control methods for large-scale coherent laser beam combining are systematically reviewed,and the principles,characteristics,application scenarios and expansibilities of different methods are analyzed;the latest progress and landmark achievements of coherent beam combining achieved by various active phase control methods are introduced,and the breakthrough result of 6 μs closed-loop locking time for 19-channel coherent beam combining is reported;the future development trend of large-scale active phase control methods is predicted.关键词
相干合成/主动相位控制/多抖动/随机并行梯度下降/机器学习Key words
coherent beam combining/active phase control/multi-dithering/stochastic parallel gradient descent/machine learning分类
数理科学引用本文复制引用
周宏冰,林宏奂,王建军,颜立新,景峰,张昊宇,李敏,冯曦,谢亮华,刘玙,楚秋慧,闫玥芳,陶汝茂..大规模激光相干合成主动相位控制技术研究进展[J].强激光与粒子束,2024,36(6):1-23,23.基金项目
国家自然科学基金项目(62205317) （62205317）
