Numerical and experimental study on coherent beam combining using an improved stochastic parallel gradient descent algorithm

doi:10.1088/1555-6611/ab9118

CORC > 长春光学精密机械与物理研究所 > 中国科学院长春光学精密机械与物理研究所

	Numerical and experimental study on coherent beam combining using an improved stochastic parallel gradient descent algorithm
	J. K. Song,Y. Y. Li,D. B. Che and T. F. Wang
刊名	Laser Physics
	2020
卷号	30 期号:8 页码:7
ISSN号	1054-660X
DOI	10.1088/1555-6611/ab9118
英文摘要	The adaptive gradient (AdaGrad) method is an optimization algorithm widely used in the field of artificial intelligence. An adaptive gradient stochastic parallel gradient descent (SPGD) algorithm (AdaSPGD algorithm), combining an AdaGrad algorithm with an SPGD algorithm, is innovatively introduced and implemented in coherent beam synthesis. The performance of a coherent beam combination system utilizing the AdaSPGD method is validated by numerical simulation of straightening static phase aberrations. The results of the simulations indicate that the AdaSPGD algorithm not only can effectively solve the trouble of difficulty in selecting the gain coefficient in the actual beam combining system, but also can accelerate the convergence of the phase control algorithm. Furthermore, the effectiveness of the proposed algorithm is demonstrated by means of the experimental investigation on coherent beam synthesis of a two-channel fiber array. The AdaSPGD algorithm is a satisfactory modification of the conventional SPGD algorithm.
URL标识	查看原文
语种	英语
内容类型	期刊论文
源URL	[http://ir.ciomp.ac.cn/handle/181722/64735]
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	J. K. Song,Y. Y. Li,D. B. Che and T. F. Wang. Numerical and experimental study on coherent beam combining using an improved stochastic parallel gradient descent algorithm[J]. Laser Physics,2020,30(8):7.
APA	J. K. Song,Y. Y. Li,D. B. Che and T. F. Wang.(2020).Numerical and experimental study on coherent beam combining using an improved stochastic parallel gradient descent algorithm.Laser Physics,30(8),7.
MLA	J. K. Song,Y. Y. Li,D. B. Che and T. F. Wang."Numerical and experimental study on coherent beam combining using an improved stochastic parallel gradient descent algorithm".Laser Physics 30.8(2020):7.