激光技术Issue(6)：780-784,5.DOI:10.7510/jgjs.issn.1001-3806.2015.06.010
高重频风冷声光调 Q光纤激光器实验研究
Experiment research of high repetition rate acousto-optic Q-switched fiber laser under air cooling
摘要
Abstract
In order to obtain the air cooling high repetition fiber laser with stable power , an acoustic-optical Q-switched all-fiber laser with master oscillator power amplifier structure was studied .The oscillator used the scheme of acousto-optic Q-switched with a pair of fiber Bragg grating as laser cavity mirrors .Pumped by 915nm laser diodes, 1064nm laser pulse output was acquired with adjustable repetition rates from 10kHz to 130kHz.Through two-stage double clad large mode area fiber amplifier , 101W output power was obtained with 328.1ns pulse width.The 3dB optical spectrum width of fiber laser was 0.6nm.Optical-optical efficiency of the second amplifier stage was 69%.The total optical-optical efficiency of laser was 62.7%.The distortion cause of long width seed pulse created by acousto-optic Q-switched through the amplification was studied .The experimental results show that pumped by 915nm laser diodes, the long-term stability of output power is proved to less than 2%under air cooling.关键词
激光技术/全光纤激光器/主振荡功率放大/声光Q开关/功率稳定性Key words
laser technique/all-fiber laser/master oscillator power amplifier/acousto-optic Q-switched/power stability分类
信息技术与安全科学引用本文复制引用
陈鹏飞,伍波,沈琪皓,何幸锴..高重频风冷声光调 Q光纤激光器实验研究[J].激光技术,2015,(6):780-784,5.基金项目
国家自然科学基金资助项目 （）
