High Power Laser Science and Engineering, 2019, 7 (1): 010000e8, Published Online: Mar. 26, 2019
High-power, Joule-class, temporally shaped multi-pass ring laser amplifier with two Nd:glass laser heads Download: 631次
Abstract
A high-power, Joule-class, nanosecond temporally shaped multi-pass ring laser amplifier system with two neodymium-doped phosphate glass (Nd:glass) laser heads is demonstrated. The laser amplifier system consists of three parts: an all-fiber structure seeder, a diode-pumped Nd:glass regenerative amplifier and a 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 preamplifier of high-power laser facilities.
Jiangtao Guo, Jiangfeng Wang, Hui Wei, Wenfa Huang, Tingrui Huang, Gang Xia, Wei Fan, Zunqi Lin. High-power, Joule-class, temporally shaped multi-pass ring laser amplifier with two Nd:glass laser heads[J]. High Power Laser Science and Engineering, 2019, 7(1): 010000e8.