强激光与粒子束, 2011, 23 (8): 1996, 网络出版: 2011-09-20
主振荡功率放大结构窄线宽全光纤激光器334 W高功率输出
Narrow-linewidth high power fiber laser with output power of 334 W in all-fiber MOPA format
光纤激光器 窄线宽 全光纤 主振荡功率放大 fiber laser narrow linewidth all-fiber format master oscillator power amplifier
摘要
搭建了一台全光纤结构的窄线宽高功率掺镱光纤激光器。种子激光的输出功率大于40 mW,线宽窄于100 MHz。采用主振荡功率放大结构三级放大,主放泵浦功率为405 W时得到了334 W的窄线宽高功率激光输出,光光转换效率为82.4%。目前,激光器输出功率仅受限于泵浦功率,增加有效泵浦功率即有望进一步提高输出功率。
Abstract
A narrow-linewidth high power Yb-doped fiber laser in all-fiber format is set up. The seed laser has an output power of more than 40 mW with linewidth narrower than 100 MHz. The fiber laser employs three-stage master oscillator power amplifier(MOPA) configuration. It outputs 334 W narrow-linewidth laser when pumped with a total power of 405 W in the main amplifier. The optical-to-optical conversion efficiency is 82.4%. Presently, the output power is limited by the pump power. It can be predicted that the laser power can be further scaled with increased available pump power.
杜文博, 肖虎, 王小林, 冷进勇, 周朴, 刘泽金. 主振荡功率放大结构窄线宽全光纤激光器334 W高功率输出[J]. 强激光与粒子束, 2011, 23(8): 1996. Du Wenbo, Xiao Hu, Wang Xiaolin, Leng Jinyong, Zhou Pu, Liu Zejin. Narrow-linewidth high power fiber laser with output power of 334 W in all-fiber MOPA format[J]. High Power Laser and Particle Beams, 2011, 23(8): 1996.