Design method for laser beam aggregation based on SPGD

被引：1
|
作者：
Zeng, Qinbo [1 ]
Liu, Xiangyu [1 ]
Wang, Qian [1 ]
Liu, Xinliu [1 ]
Luo, Yunzhi [1 ]
机构：
[1] China South Ind Grp Corp, Automat Res Inst Co Ltd, Mianyang, Peoples R China
来源：
RESULTS IN OPTICS | 2023年 / 13卷
关键词：
Laser beam aggregation; Stochastic parallel gradient descent (SPGD); Beam deviation control; Beam FSM;
D O I：
10.1016/j.rio.2023.100584
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
This paper proposes a design method for laser beam aggregation based on SPGD, effectively addressing the issue of beam aggregation inconsistency caused by external interferences during the multi-path laser beam combination process. This further enhances the energy density of the combined laser spot. By applying a random binary disturbance vector based on control parameters and employing the stochastic parallel gradient descent (SPGD) algorithm for model control and parallel iteration, the control parameters are halved. This accelerates the iteration speed, enabling rapid aggregation of the combined laser beams and maximizing the energy density of the laser spot.
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收藏
页数：3
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