Chinese Journal of Lasers, Volume. 51, Issue 5, 0515001(2024)

9 kW All‑Fiber Oscillator Based on Fiber Gratings Inscribed by Femtosecond Lasers

Hao Li1,2, Baolai Yang1,2, Binyu Rao1,2, Xinyu Ye1,2, Xin Tian1,2, Meng Wang1,2, Baiyi Wu1,2, Rong Zhao1,2, Zhixian Li1,2, Zilun Chen1,2, Hu Xiao1,2, Pengfei Ma1,2, Zefeng Wang1,2、*, and Jinbao Chen1,2
Author Affiliations
  • 1College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha 410073, Hunan , China
  • 2Nanhu Laser Laboratory, National University of Defense Technology, Changsha 410073, Hunan , China
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    References(11)

    [1] Wang X L, Zhang H W, Yang B L et al. High-power ytterbium-doped fiber laser oscillator: current situation and future developments[J]. Chinese Journal of Lasers, 48, 0401004(2021).

    [2] 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).

    [3] Li H, Yang B L, Wang M et al. Femtosecond laser fabrication of large-core fiber Bragg gratings for high-power fiber oscillators[J]. APL Photonics, 8, 046101(2023).

    [4] Jiao K R, Shu J, Shen H et al. Fabrication of kW-level chirped and tilted fiber Bragg gratings and filtering of stimulated Raman scattering in high-power CW oscillators[J]. High Power Laser Science and Engineering, 7, e31(2019).

    [5] Song H Q, Yan D L, Wu W J et al. SRS suppression in multi-kW fiber lasers with a multiplexed CTFBG[J]. Optics Express, 29, 20535-20544(2021).

    [6] Li H, Ye X Y, Wang M et al. High-power chirped and tilted fiber gratings written by femtosecond lasers[J]. Acta Optica Sinica, 43, 1706002(2023).

    [7] Wang M, Tian X, Zhao X F et al. Transmission power of homemade chirped and tilted fiber Bragg grating on 25 μm/400 μm fiber exceeding 4 kW[J]. Chinese Journal of Lasers, 49, 0615001(2022).

    [8] Li H, Wang M, Wu B et al. Femtosecond laser fabrication of chirped and tilted fiber Bragg gratings for stimulated Raman scattering suppression in kilowatt-level fiber lasers[J]. Optics Express, 31, 13393-13401(2023).

    [9] 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).

    [10] Wan Y C, Yang B L, Wang P et al. Optimizing the pump wavelength to improve the transverse mode instability threshold of fiber laser by 3.45 times[J]. Journal of Modern Optics, 68, 967-974(2021).

    [11] Hejaz K, Shayganmanesh M, Rezaei-Nasirabad R et al. Modal instability induced by stimulated Raman scattering in high-power Yb-doped fiber amplifiers[J]. Optics Letters, 42, 5274-5277(2017).

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    Hao Li, Baolai Yang, Binyu Rao, Xinyu Ye, Xin Tian, Meng Wang, Baiyi Wu, Rong Zhao, Zhixian Li, Zilun Chen, Hu Xiao, Pengfei Ma, Zefeng Wang, Jinbao Chen. 9 kW All‑Fiber Oscillator Based on Fiber Gratings Inscribed by Femtosecond Lasers[J]. Chinese Journal of Lasers, 2024, 51(5): 0515001

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    Paper Information

    Category: Letters

    Received: Nov. 23, 2023

    Accepted: Dec. 20, 2023

    Published Online: Mar. 5, 2024

    The Author Email: Wang Zefeng (zefengwang_nudt@163.com)

    DOI:10.3788/CJL231429

    CSTR:32183.14.CJL231429

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