High power, joules class, temporally shaped multi-pass ring laser amplifier with two Nd:glass laser heads [Early Posting]
A high-power, Joule-class, nanosecond temporally shaped multi-pass ring laser amplifier system with two Nd: glass (neodymium-doped phosphate glass) laser heads is demonstrated. The laser amplifier system consists of three parts: all fiber structure seeder, diode pumped Nd: glass regenerative amplifier, and multi-pass ring amplifier, where the thermally induced depolarization of two laser heads is studied experimentally and theoretically. Following the injection of a square pulse with the pulse energy of 0.9 mJ and pulse width of 6 ns, a 0.969 J high-energy laser pulse at 1 Hz was generated, which had the ability to change the waveform arbitrarily based on the all fiber structure front-end. The experimental results show that the proposed laser system is promising to be adopted in the pre-amplifier of high power laser facilities.
作者单位：Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences
Shanghai Institute of Optics and Fine Mechanics
Shanghai Institute of Optics and Fine Mechanics Chinese Academy of Sciences
jiangtao guo,Wang Jiangfeng,hui wei,huang wenfa,Huang Tingrui,Xia Gang,Fan Wei,Lin Zunqi. High power, joules class, temporally shaped multi-pass ring laser amplifier with two Nd:glass laser heads[J].High Power Laser Science and Engineering,,():.