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

  • Wenfa Huang (a1) (a2), Jiangfeng Wang (a1) (a2), Xinghua Lu (a1) (a2), Tingrui Huang (a1) (a2), Jiangtao Guo (a1) (a2), Wei Fan (a1) (a2) and Xuechun Li (a1) (a2)...

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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Copyright

This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution, and reproduction in any medium, provided the original work is properly cited.

Corresponding author

Correspondence to: W. Huang, 390 Qinghe Road, Jiading District, Shanghai 201800, China. Email: huangwf@siom.ac.cn

References

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