中国物理B ›› 2021, Vol. 30 ›› Issue (8): 84210-084210.doi: 10.1088/1674-1056/abff47

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A low-threshold multiwavelength Brillouin fiber laser with double-frequency spacing based on a small-core fiber

Lu-Lu Xu(徐路路)1,3,4, Ying-Ying Wang(王莹莹)1,3,4, Li Jiang(江丽)1,3,4, Pei-Long Yang(杨佩龙)1,3,4, Lei Zhang(张磊)2, and Shi-Xun Dai(戴世勋)1,3,4,†   

  1. 1 Laboratory of Infrared Materials and Devices, The Research Institute of Advanced Technologies, Ningbo University, Ningbo 315211, China;
    2 Research and Development Center, Yangtze Optical Fiber and Cable Company Ltd, Wuhan 430073, China;
    3 Key Laboratory of Photoelectric Materials and Devices of Zhejiang Province, Ningbo 315211, China;
    4 Engineering Research Center for Advanced Infrared Photoelectric Materials and Devices of Zhejiang Province, Ningbo 315211, China
  • 收稿日期:2021-04-01 修回日期:2021-04-30 接受日期:2021-05-10 出版日期:2021-07-16 发布日期:2021-07-20
  • 通讯作者: Shi-Xun Dai E-mail:daishixun@nbu.edu.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 61875094), China Postdoctoral Science Foundation (Grant No. 2018M642386), and K. C. Wong Magna Fund in Ningbo University.

A low-threshold multiwavelength Brillouin fiber laser with double-frequency spacing based on a small-core fiber

Lu-Lu Xu(徐路路)1,3,4, Ying-Ying Wang(王莹莹)1,3,4, Li Jiang(江丽)1,3,4, Pei-Long Yang(杨佩龙)1,3,4, Lei Zhang(张磊)2, and Shi-Xun Dai(戴世勋)1,3,4,†   

  1. 1 Laboratory of Infrared Materials and Devices, The Research Institute of Advanced Technologies, Ningbo University, Ningbo 315211, China;
    2 Research and Development Center, Yangtze Optical Fiber and Cable Company Ltd, Wuhan 430073, China;
    3 Key Laboratory of Photoelectric Materials and Devices of Zhejiang Province, Ningbo 315211, China;
    4 Engineering Research Center for Advanced Infrared Photoelectric Materials and Devices of Zhejiang Province, Ningbo 315211, China
  • Received:2021-04-01 Revised:2021-04-30 Accepted:2021-05-10 Online:2021-07-16 Published:2021-07-20
  • Contact: Shi-Xun Dai E-mail:daishixun@nbu.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 61875094), China Postdoctoral Science Foundation (Grant No. 2018M642386), and K. C. Wong Magna Fund in Ningbo University.

摘要: We demonstrate multiwavelength Brillouin fiber lasers (MWBFLs) with double-frequency spacing based on a small-core fiber (SCF) and a standard single-mode fiber (SMF), which have core diameters of 5 and 8.8 μm, respectively. Experimental results show that the SCF-based MWBFL exhibits a higher laser output power and a lower pump threshold. The output powers of the SCF-based MWBFL are > 1.4 times those of the SMF-based MWBFL. Moreover, the threshold power required to generate each channel of the SCF-based MWBFL is 59% that of the SMF-based MWBFL. When the same pump power of 180 mW is injected, the number of laser channels generated for the SCF-based MWBFL is 13, which is twice that generated for the SMF-based MWBFL. In addition, the SCF-based MWBFL exhibits good wavelength tunability from 1535 to 1565 nm and temporal stability over an hour.

关键词: nonlinear optics, fiber laser, small-core fiber, stimulated Brillouin scattering

Abstract: We demonstrate multiwavelength Brillouin fiber lasers (MWBFLs) with double-frequency spacing based on a small-core fiber (SCF) and a standard single-mode fiber (SMF), which have core diameters of 5 and 8.8 μm, respectively. Experimental results show that the SCF-based MWBFL exhibits a higher laser output power and a lower pump threshold. The output powers of the SCF-based MWBFL are > 1.4 times those of the SMF-based MWBFL. Moreover, the threshold power required to generate each channel of the SCF-based MWBFL is 59% that of the SMF-based MWBFL. When the same pump power of 180 mW is injected, the number of laser channels generated for the SCF-based MWBFL is 13, which is twice that generated for the SMF-based MWBFL. In addition, the SCF-based MWBFL exhibits good wavelength tunability from 1535 to 1565 nm and temporal stability over an hour.

Key words: nonlinear optics, fiber laser, small-core fiber, stimulated Brillouin scattering

中图分类号:  (Fiber lasers)

  • 42.55.Wd
42.81.-i (Fiber optics) 42.65.Es (Stimulated Brillouin and Rayleigh scattering) 42.81.Cn (Fiber testing and measurement of fiber parameters)