多单元光纤激光阵列的倾斜控制实验研究  

Experimental research of tip/tilt control of a multi-channel fiber-laser array

作　　者：耿超[1] 谭毅[1] 牟进博[1] 李新阳[1] 

机构地区：[1]中国科学院光电技术研究所自适应光学研究室,中国科学院自适应光学重点实验室,成都610209

出　　处：《物理学报》2013年第2期261-267,共7页Acta Physica Sinica

基　　金：国家自然科学基金(批准号:61138007)资助的课题~~

摘　　要：本文结合光纤激光阵列技术的发展趋势,介绍一种基于大模场面积光纤的自适应光纤光源准直器的研制进展,搭建七单元光纤激光阵列,进行平行发射体系下阵列间的倾斜控制实验,并初步探索了基于目标在回路的共形发射体系下阵列间的倾斜控制.最后,在三级全光纤放大链路的主振荡-功率放大系统中,完成了两路10W量级光纤激光阵列的倾斜控制及锁相.为在实际大气环境下应用光纤激光阵列技术提供了参考.The fiber-laser array technique has an extensive prospect of applications in the areas of coherent beam combination, free-space laser communications and so on. In this paper, considering the development trend of the fiber-laser array technique, the research progress of an adaptive fiber-optic collimator based on large-mode-area fiber is introduced, a 7-channel fiber-laser array is established, the tip/tilt control experiment of laser array under parallel-transmission configuration is conducted, and the tip/tilt control of laser array under conformal-transmission configuration using target-in-the-loop is explored. Finally, the tip/tilt control and phase locking of two 10-W level fiber lasers are achieved in the master-oscillator-power-amplifier （MOPA） system with three-stage all-fiber amplifiers. This paper presents a reference for using the fiber-laser array technique in real atmospheric environment.

关 键 词：光纤激光阵列 倾斜控制 共形发射 目标在回路 

分 类 号：TN253[电子电信—物理电子学]