High Power Laser Science and Engineering, 2018, 6 (2): 02000e15, Published Online: Jul. 4, 2018
LD-pumped gas-cooled multislab Nd:glass laser amplification to joule level Download: 638次
Abstract
We demonstrate a laser diode end-pumped helium gas-cooled multislab Nd:glass laser amplifier. The design and thermal management of the proposed laser amplifier are discussed. The thermally induced wavefront aberration of the slabs was also measured and compared with simulation results. A small-signal single-pass longitudinal gain of 1.8 was measured with a pump energy of 7.3 J. With an injected seed energy of 0.6 mJ, the output energy from the amplifier reached 0.5 J at 0.2 Hz and 0.43 J at 0.5 Hz in a multipass extraction geometry, thus demonstrating the feasibility of diode-pumped, high-energy lasers with direct gas cooling.
Wenfa Huang, Jiangfeng Wang, Xinghua Lu, Tingrui Huang, Jiangtao Guo, Wei Fan, Xuechun Li. LD-pumped gas-cooled multislab Nd:glass laser amplification to joule level[J]. High Power Laser Science and Engineering, 2018, 6(2): 02000e15.