A thin-disk multi-pass pump scheme with large laser aperture

Chen Hantian; Dong Jing; Wang Hailin; Zhu Guangzhi; Zhu Xiao

doi:10.11884/HPLPB202234.210278

Volume 34 Issue 3

Jan. 2022

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Article Navigation > High Power Laser and Particle Beams > 2022 > 34(3): 031004

Chen Hantian, Dong Jing, Wang Hailin, et al. A thin-disk multi-pass pump scheme with large laser aperture[J]. High Power Laser and Particle Beams, 2022, 34: 031004. doi: 10.11884/HPLPB202234.210278

Citation:

Chen Hantian, Dong Jing, Wang Hailin, et al. A thin-disk multi-pass pump scheme with large laser aperture[J]. High Power Laser and Particle Beams, 2022, 34: 031004. doi: 10.11884/HPLPB202234.210278

Chen Hantian, Dong Jing, Wang Hailin, et al. A thin-disk multi-pass pump scheme with large laser aperture[J]. High Power Laser and Particle Beams, 2022, 34: 031004. doi: 10.11884/HPLPB202234.210278

Citation:

Chen Hantian, Dong Jing, Wang Hailin, et al. A thin-disk multi-pass pump scheme with large laser aperture[J]. High Power Laser and Particle Beams, 2022, 34: 031004. doi: 10.11884/HPLPB202234.210278

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A thin-disk multi-pass pump scheme with large laser aperture

doi: 10.11884/HPLPB202234.210278

Chen Hantian^{1, 2
,},
Dong Jing^{1, 2},
Wang Hailin^{1, 2},
Zhu Guangzhi^{1, 2},
Zhu Xiao^{1, 2
,
,}

1.
School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China
2.
National Engineering Research Center for Laser Processing, Wuhan 430074, China

Received Date: 2021-07-13
Rev Recd Date: 2020-11-09

Available Online: 2021-11-17

Publish Date: 2022-01-13

Abstract

Abstract

In this paper, a novel multi-pass pump scheme based on 4-f imaging is proposed. The scheme consists of a large parabolic mirror and two groups of folding prisms, which are the basic propagation structure of the scheme. The pump scheme has a theoretical aperture of 0−90° for laser transmission, which is wider than that of the commonly used pump schemes. The pump spot on the disk in the pump scheme has a good coincidence with sharp edges. With 344 W power injection and 18 times pumping, an average output of 141 W multi-mode laser is achieved. The optical to optical efficiency reaches 41%, and the slope efficiency is close to 50%.
- thin-disk laser,
- multi-pass pump,
- 4-f imaging system,
- spot uniformity,
- parabolic mirror

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References(11)

References

[1]	Giesen A, Speiser J. Fifteen years of work on thin-disk lasers: results and scaling laws[J]. IEEE Journal of Selected Topics in Quantum Electronics, 2007, 13(3): 598-609. doi: 10.1109/JSTQE.2007.897180
[2]	崔文达, 韩凯, 王红岩, 等. 半导体泵浦盘片激光器的技术发展[J]. 激光与红外, 2016, 46(4):387-393. (Cui Wenda, Han Kai, Wang Hongyan, et al. Recent advances of diode-pumped thin disk laser[J]. Laser & Infrared, 2016, 46(4): 387-393 doi: 10.3969/j.issn.1001-5078.2016.04.002
[3]	Erhard S, Giesen A, Karszewski M, et al. Novel pump design of Yb: YAG thin disc laser for operation at room temperature with improved efficiency[C]//Proceedings of the Advanced Solid State Lasers. 1999.
[4]	Killi A, Zawischa I, Sutter D, et al. Current status and development trends of disk laser technology[C]//Proceedings of the SPIE 6871 Solid State Lasers XVII: Technology and Devices. 2008: 68710L.
[5]	Gottwald T, Stolzenburg C, Bauer D, et al. Recent disk laser development at Trumpf[C]//Proceedings of the SPIE 8547 High-Power Lasers 2012: Technology and Systems. 2012: 85470C.
[6]	Sven-Silvius S, Tina G, Vincent K, et al. Recent development of disk lasers at TRUMPF[C]//Proceedings of the SPIE 9726 Solid State Lasers XXV: Technology and Devices. 2016: 972615.
[7]	Schuhmann K, Hänsch T W, Kirch K, et al. Thin-disk laser pump schemes for large number of passes and moderate pump source quality[J]. Applied Optics, 2015, 54(32): 9400-9408. doi: 10.1364/AO.54.009400
[8]	Huang Yan, Zhu Xiao, Zhu Guangzhi, et al. A multi-pass pumping scheme for thin disk lasers with good anti-disturbance ability[J]. Optics Express, 2015, 23(4): 4605-4613. doi: 10.1364/OE.23.004605
[9]	Song Enmao, Zhu Guangzhi, Wang Hailin, et al. Minimizing thermal load and stabilizing mode in Yb: YAG thin disk laser by 1030 nm multi-pass pumping[J]. IEEE Photonics Technology Letters, 2020, 32(16): 1011-1014. doi: 10.1109/LPT.2020.3008410
[10]	Chen Hantian, Song Enmao, Dong Jing, et al. Compact thin-disk multipass amplifier tolerant of strong disk thermal distortions[C]//Proceedings of CLEO: Science and Innovations 2020. 2020.
[11]	黄彦. 碟片激光器泵浦均匀性的研究[D]. 武汉: 华中科技大学, 2016: 90-93 Huang Yan. The study of pumping uniformity in thin disk lasers[D]. Wuhan: Huazhong University of Science and Technology, 2016: 90-93