Acta Optica Sinica, Volume. 39, Issue 1, 0114001(2019)

Tunable Broadband Single-frequency Narrow-Linewidth Fiber Laser

Xuanxuan Ma1,2,3、*, Baole Lu1,2,3、*, Kaile Wang1,2,3, Yao Hou1,2,3, Kailong Zhang1,2,3, Haowei Chen1,2,3, and Jintao Bai1,2,3、*
Author Affiliations
  • 1 National Key Laboratory of Shaanxi Province for Photoelectric Technology and Functional Materials, Xi'an, Shaanxi 710069, China
  • 2 National Optical Technology and Functional Nanomaterials International Science and Technology Joint Research Center, Xi'an, Shaanxi 710069, China
  • 3 Institute of Photonics and Photon-Technology, Shaanxi Provincial Key Laboratory of Photo-Electronic Technology, Northwest University, Xi'an, Shaanxi 710069, China
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    The tunable single-frequency (SF) narrow-linewidth fiber laser with all-fiber complex cavity structure is designed, which is composed of an optical fiber tunable filter, a high-precision ring filter, and a fiber loop mirror. A 980-nm semiconductor laser is used as the pumping source, and the ytterbium-doped fiber is employed as the gain medium and saturable absorber, then a wide-spectrum tunable single-frequency narrow-linewidth laser output from 1030 nm to 1090 nm is successfully realized. When the pump power is up to 300 mW, the output power is 18.5 mW and the slope efficiency is 7.95% at the wavelength of 1070 nm. There is no mode hopping phenomenon within 1 h, and the standard deviation of power stability is less than 1%. When the pump power is 200 mW, the linewidth is measured by the delay self-heterodyne method, and the average line width in the wavelength tuning range is 8.7 kHz, and the relaxation oscillation frequency is 64 kHz.

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    Xuanxuan Ma, Baole Lu, Kaile Wang, Yao Hou, Kailong Zhang, Haowei Chen, Jintao Bai. Tunable Broadband Single-frequency Narrow-Linewidth Fiber Laser[J]. Acta Optica Sinica, 2019, 39(1): 0114001

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    Paper Information

    Category: Lasers and Laser Optics

    Received: Jun. 7, 2018

    Accepted: Aug. 21, 2018

    Published Online: May. 10, 2019

    The Author Email:

    DOI:10.3788/AOS201939.0114001

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