摘要
对目标在回路(TIL)光纤激光阵列自适应锁相技术开展了理论与实验研究。介绍了目标在回路自适应锁相光纤激光阵列的基本结构和单抖动法的基本原理。搭建了两路高功率光纤放大器,利用信号处理器执行单抖动算法,实时控制光束的相位,实现了两路10 W级光纤放大器的目标在回路自适应相位锁定。实验结果表明,目标在回路自适应锁相光学系统能够有效控制光纤激光的相位噪声,实现阵列光束的相位锁定,光斑对比度可提高到73%。
The target-in-the-loop（TIL） fiber laser array adaptive phase-locking technique is studied theoretically and experimentally.The system configurations of TIL adaptive phase-locked fiber laser array and the fundamental theory for single-dithering algorithm are introduced.The performance of TIL adaptive phase-locked fiber laser array under high-power laser is studied.Two high-power fiber amplifiers are set up and the adaptive phase-locking of two 10-W-level fiber amplifiers is accomplished by implementing single-dithering algorithm on a signal processor.The experimental results demonstrate that the optical phase noise for each beam channel can be effectively controlled by the TIL adaptive optics system and the fringe contrast is increased to 73%.
出处
《中国激光》
EI
CAS
CSCD
北大核心
2011年第7期70-73,共4页
Chinese Journal of Lasers
关键词
光纤光学
光纤放大器
目标在回路
单抖动法
自适应锁相技术
fiber optics
fiber amplifier
target-in-the-loop
single-dithering algorithm
adaptive phase-locking technique
