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LD-pumped gas-cooled multislab Nd:glass laser amplification to joule level

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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.

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DOI:10.1017/hpl.2018.7

基金项目:This project is supported by the Shanghai Science and Technology Foundation for Young Scholars (Grant No. 17YF1429600) and the National Natural Science Foundation of China (Grant No. 61705242).

收稿日期:2017-09-07

录用日期:2017-11-04

网络出版日期:2018-02-01

作者单位    点击查看

Wenfa Huang:Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, ChinaNational Laboratory on High Power Laser and Physics, Shanghai 201800, China
Jiangfeng Wang:Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, ChinaNational Laboratory on High Power Laser and Physics, Shanghai 201800, China
Xinghua Lu:Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, ChinaNational Laboratory on High Power Laser and Physics, Shanghai 201800, China
Tingrui Huang:Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, ChinaNational Laboratory on High Power Laser and Physics, Shanghai 201800, China
Jiangtao Guo:Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, ChinaNational Laboratory on High Power Laser and Physics, Shanghai 201800, China
Wei Fan:Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, ChinaNational Laboratory on High Power Laser and Physics, Shanghai 201800, China
Xuechun Li:Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, ChinaNational Laboratory on High Power Laser and Physics, Shanghai 201800, China

联系人作者:Wenfa Huang(huangwf@siom.ac.cn)

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引用该论文

Wenfa Huang, Jiangfeng Wang, Xinghua Lu, Tingrui Huang, Jiangtao Guo, Wei Fan, and Xuechun Li, "LD-pumped gas-cooled multislab Nd:glass laser amplification to joule level," High Power Laser Science and Engineering 6(2), e15 (2018)

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