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Chinese Journal of Lasers, Volume. 52, Issue 10, 1001002(2025)

Domestic High Power (>50 W) Kerr Lens Mode‑Locked Yb:YAG Thin‑Disk Laser

Junzhan Chen1,2, Yubo Gao2, Sizhi Xu2, Chonghao Wu2, Xingyu He2, Haotian Lu2, Ou Zuoyuan2, Junqing Zhao2, Chunyu Guo1, Wenlong Tian4, Xing Liu2、*, Qitao Lue3, and Shuangchen Ruan2、**
Author Affiliations
  • 1Shenzhen Key Laboratory of Laser Engineering, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, Guangdong , China
  • 2Key Laboratory of Advanced Optical Precision Manufacturing Technology of Guangdong Higher Education Institutes, Sino-German College of Intelligent Manufacturing, Shenzhen Technology University, Shenzhen 518118, Guangdong , China
  • 3Han’s Laser Technology Industry Group Co., Ltd., Shenzhen 518103, Guangdong , China
  • 4School of Optoelectronic Engineering, Xidian University, Xi’an 710071, Shaanxi , China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (6)
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    Figures & Tables(6)
    Schematic of KLM disk laser

    Fig. 1. Schematic of KLM disk laser

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    Simulated intracavity mode radius distributions under continuous light and mode-locking operations

    Fig. 2. Simulated intracavity mode radius distributions under continuous light and mode-locking operations

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    CW output power and optical-to-optical conversion efficiency of laser in fundamental mode state

    Fig. 3. CW output power and optical-to-optical conversion efficiency of laser in fundamental mode state

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    Output femtosecond pulse trains of oscillator under mode-locking operation

    Fig. 4. Output femtosecond pulse trains of oscillator under mode-locking operation

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    Output pulse characteristics of KLM laser. (a) Autocorrelation measurement result and fitted curve ;(b) mode-locked spectrum; (c) radio frequency spectrum of mode-locked laser at RBW of 50 Hz; (d) high order harmonic signal at 50 kHz resolution

    Fig. 5. Output pulse characteristics of KLM laser. (a) Autocorrelation measurement result and fitted curve ;(b) mode-locked spectrum; (c) radio frequency spectrum of mode-locked laser at RBW of 50 Hz; (d) high order harmonic signal at 50 kHz resolution

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    Measured beam quality and power stability. (a) Beam quality of ML laser and near-field beam profiles before and after mode locking; (b) power stability of ML laser within 30 min

    Fig. 6. Measured beam quality and power stability. (a) Beam quality of ML laser and near-field beam profiles before and after mode locking; (b) power stability of ML laser within 30 min

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    Junzhan Chen, Yubo Gao, Sizhi Xu, Chonghao Wu, Xingyu He, Haotian Lu, Ou Zuoyuan, Junqing Zhao, Chunyu Guo, Wenlong Tian, Xing Liu, Qitao Lue, Shuangchen Ruan. Domestic High Power (>50 W) Kerr Lens Mode‑Locked Yb:YAG Thin‑Disk Laser[J]. Chinese Journal of Lasers, 2025, 52(10): 1001002

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    Paper Information

    Category: laser devices and laser physics

    Received: Nov. 29, 2024

    Accepted: Jan. 14, 2025

    Published Online: Apr. 24, 2025

    The Author Email: Xing Liu (liuxingstart123@163.com), Shuangchen Ruan (scruan@sztu.edu.cn)

    DOI:10.3788/CJL241405

    CSTR:32183.14.CJL241405

    Topics

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