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Chinese Journal of Lasers, Volume. 52, Issue 11, 1101002(2025)

7 kW Fiber Laser Oscillator with 915 nm and 976 nm Hybrid Pumping Based on Ytterbium‑Doped Fiber

Yuhang Lu1, Yun Chen2, Yue Yu1, Luwen Yang2, Zhiqiang Wan2, Jilong Tang1,3、*, and Zhipeng Wei1
Author Affiliations
  • 1State Key Laboratory of High Power Semiconductor Laser, Changchun University of Science and Technology, Changchun 130022, Jilin , China
  • 2Shenzhen JPT Opto-Electronics Co., Ltd., Shenzhen 518110, Guangdong , China
  • 3Zhongshan Institute, Changchun University of Science and Technology, Zhongshan 528437, Guangdong , China
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    [4] Jeong Y, Sahu J, Payne D et al. Ytterbium-doped large-core fiber laser with 1.36 kW continuous-wave output power[J]. Optics Express, 12, 6088-6092(2004).

    [5] Xiao H, Li R X, Wu H S et al. Research progress in tandem-pumped high-power and high-beam quality ytterbium-doped fiber laser[J]. Acta Optica Sinica, 43, 1714009(2023).

    [6] Zeng L F, Wen Y J, Wang X L et al. Experimental research on abnormal transverse mode instability in high-power fiber lasers[J]. Chinese Journal of Lasers, 51, 0601001(2024).

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    [11] Yang B L, Zhang H W, Shi C et al. Mitigating transverse mode instability in all-fiber laser oscillator and scaling power up to 2.5 kW employing bidirectional-pump scheme[J]. Optics Express, 24, 27828-27835(2016).

    [12] Shima K, Ikoma S, Uchiyama K et al. 5-kW single stage all-fiber Yb-doped single-mode fiber laser for materials processing[J]. Proceedings of SPIE, 10512, 105120C(2018).

    [13] Wang Y, Kitahara R, Kiyoyama W et al. 8-kW single-stage all-fiber Yb-doped fiber laser with a BPP of 0.50 mm-mrad[J]. Proceedings of SPIE, 11260, 1126022(2020).

    [14] Li H, Ye X Y, Wang M et al. Realization of 8 kW fiber oscillator by femtosecond laser writing fiber Bragg grating[J]. Chinese Journal of Lasers, 49, 2316001(2022).

    [15] Ye Y, Yang B L, Wang P et al. Industrial 6 kW high-stability single-stage all-fiber laser oscillator based on conventional large mode area ytterbium-doped fiber[J]. Laser Physics, 31, 035104(2021).

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    [18] Wen Y J, Wang P, Xi X M et al. Laser diode directly backward pumped high-beam-quality 10-kW fiber laser[J]. Acta Physica Sinica, 71, 244202(2022).

    [19] Wan Y C, Xi X M, Yang B L et al. Enhancement of TMI threshold in Yb-doped fiber laser by optimizing pump wavelength[J]. IEEE Photonics Technology Letters, 33, 656-659(2021).

    [20] Yang B L, Zhang H W, Wang X L et al. Mitigating transverse mode instability in a single-end pumped all-fiber laser oscillator with a scaling power of up to 2 kW[J]. Journal of Optics, 18, 105803(2016).

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    Yuhang Lu, Yun Chen, Yue Yu, Luwen Yang, Zhiqiang Wan, Jilong Tang, Zhipeng Wei. 7 kW Fiber Laser Oscillator with 915 nm and 976 nm Hybrid Pumping Based on Ytterbium‑Doped Fiber[J]. Chinese Journal of Lasers, 2025, 52(11): 1101002

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    Paper Information

    Category: laser devices and laser physics

    Received: Nov. 11, 2024

    Accepted: Mar. 3, 2025

    Published Online: Jun. 7, 2025

    The Author Email: Jilong Tang (jl_tangcust@163.com)

    DOI:10.3788/CJL241335

    Topics

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