Efficient Phase Locking of Fiber Amplifiers Using a Low-Cost and High-Damage-Threshold Phase Control System  

作　　者：周朴 马阎星 王小林 马浩统 许晓军 刘泽金 

机构地区：[1]College of Optic-electric Science and Engineering, National University of Defense Technology, Changsha, Hunan 410073

出　　处：《Chinese Physics Letters》2010年第3期174-176,共3页中国物理快报（英文版）

摘　　要：We propose a low-cost and high-damage-threshold phase control system that employs a piezoelectric ceramic transducer modulator controlled by a stochastic parallel gradient descent algorithm. Efficient phase locking of two fiber amplifiers is demonstrated. Experimental results show that energy encircled in the target pinhole is increased by a factor of 1.76 and the visibility of the fringe pattern is as high as 90% when the system is in close-loop. The phase control system has potential in phase locking of large-number and high-power fiber laser endeavors.We propose a low-cost and high-damage-threshold phase control system that employs a piezoelectric ceramic transducer modulator controlled by a stochastic parallel gradient descent algorithm. Efficient phase locking of two fiber amplifiers is demonstrated. Experimental results show that energy encircled in the target pinhole is increased by a factor of 1.76 and the visibility of the fringe pattern is as high as 90% when the system is in close-loop. The phase control system has potential in phase locking of large-number and high-power fiber laser endeavors.

关 键 词：Computational physics Electronics and devices Optics quantum optics and lasers 

分 类 号：TN929.11[电子电信—通信与信息系统] TP273[电子电信—信息与通信工程]