光学学报, 2014, 34 (9): 0917001, 网络出版: 2014-07-22
100 W,2.6 mJ衍射极限输出的全光纤主振荡功率放大脉冲激光器 下载: 530次
100 W, 2.6 mJ Diffraction Limit Output All-Fiber Master Oscillator Power Amplification Pulse Laser
光纤激光器 脉冲激光 主振荡功率放大 掺镱光纤 lasers fiber lasers pulse laser master oscillator power amplification Yb-doped fiber
摘要
研究了一台基于主振荡功率放大(MOPA)结构的全光纤结构脉冲激光器。利用声光调Q,获得了平均功率约为500 mW的脉冲种子源,采用一级预放大器使输出脉冲放大到10 W;主放大器利用一台中心波长为976 nm的带尾纤的半导体激光器对掺Yb3+双包层光纤抽运。最终在40 kHz的重复频率下实现了中心波长为1064 nm、脉宽为2.4 μs、平均功率大于100 W、脉冲能量达到2.63 mJ、输出光束的M2因子为1.2的激光脉冲输出。
Abstract
An all-fiber pulse laser based on master oscillator power amplification (MOPA) configuration is reported. Using the acousto-optic Q switch, the pulse laser seed with average power of about 500 mW is obtained. A pre-amplifier amplifies the seed power up to 10 W. The main amplifier is based on the Yb-doped double clad fiber pumped by a pigtailed laser diode with a center wavelength of 976 nm. In the experiment, pulse laser with repetition rate of 40 kHz at the center wavelength of 1064 nm is realized. The pulse width is 2.4 μs, the average power is greater than 100 W, and the corresponding pulse energy is 2.63 mJ. The M2 factor of output beam is 1.2.
史尘, 王小林, 陶汝茂, 周朴, 侯静, 支冬. 100 W,2.6 mJ衍射极限输出的全光纤主振荡功率放大脉冲激光器[J]. 光学学报, 2014, 34(9): 0917001. Shi Chen, Wang Xiaolin, Tao Rumao, Zhou Pu, Hou Jing, Zhi Dong. 100 W, 2.6 mJ Diffraction Limit Output All-Fiber Master Oscillator Power Amplification Pulse Laser[J]. Acta Optica Sinica, 2014, 34(9): 0917001.