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High Power Laser Science and Engineering, Volume. 12, Issue 5, 05000e56(2024)

Thin-disk multi-pass amplifier for kilowatt-class ultrafast lasers

Sizhi Xu1, Xing Liu1、*, Yubo Gao1, Zuoyuan Ou1, Fayyaz Javed1, Xingyu He1, Haotian Lu1, Junzhan Chen1, Yewang Chen1, Deqin Ouyang1, Junqing Zhao1, Xu Wu1, Chunyu Guo3, Cangtao Zhou4, Qitao Lue2, and Shuangchen Ruan1、*
Author Affiliations
  • 1Key Laboratory of Advanced Optical Precision Manufacturing Technology of Guangdong Higher Education Institutes, Sino-German College of Intelligent Manufacturing, Shenzhen Technology University, Shenzhen, China
  • 2Han’s Laser Technology Industry Group Co., Ltd., Shenzhen, China
  • 3Shenzhen Key Laboratory of Laser Engineering, Guangdong Provincial Key Laboratory of Micro/Nano Optomechatronics Engineering, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, China
  • 4Shenzhen Key Laboratory of Ultraintense Laser and Advanced Material Technology, College of Engineering Physics, Shenzhen Technology University, Shenzhen, China
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    Experimental setup of the amplifier system.

    Fig. 1. Experimental setup of the amplifier system.

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    Evolution of the beam diameter during propagation within the TDMPA.

    Fig. 2. Evolution of the beam diameter during propagation within the TDMPA.

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    Average output power and extraction efficiency of the TDMPA as a function of the pump power.

    Fig. 3. Average output power and extraction efficiency of the TDMPA as a function of the pump power.

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    (a) Pulse widths and (b) optical spectra of the pulses at the maximum output power for the seed laser and TDMPA.

    Fig. 4. (a) Pulse widths and (b) optical spectra of the pulses at the maximum output power for the seed laser and TDMPA.

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    (a) Beam quality measurement at 1.075 kW of average output power. (b) Power stability at 1.054 kW.

    Fig. 5. (a) Beam quality measurement at 1.075 kW of average output power. (b) Power stability at 1.054 kW.

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    Sizhi Xu, Xing Liu, Yubo Gao, Zuoyuan Ou, Fayyaz Javed, Xingyu He, Haotian Lu, Junzhan Chen, Yewang Chen, Deqin Ouyang, Junqing Zhao, Xu Wu, Chunyu Guo, Cangtao Zhou, Qitao Lue, Shuangchen Ruan. Thin-disk multi-pass amplifier for kilowatt-class ultrafast lasers[J]. High Power Laser Science and Engineering, 2024, 12(5): 05000e56

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    Paper Information

    Category: Research Articles

    Received: May. 8, 2024

    Accepted: Jul. 2, 2024

    Posted: Jul. 4, 2024

    Published Online: Oct. 18, 2024

    The Author Email: Xing Liu (liuxing@sztu.edu.cn), Shuangchen Ruan (scruan@sztu.edu.cn)

    DOI:10.1017/hpl.2024.48

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology