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Chinese Journal of Lasers, Volume. 51, Issue 19, 1901012(2024)

High⁃Power All⁃Polarization⁃Maintaining Fiber Femtosecond Pulse Laser at 780 nm and Its Engineering Integration (Invited)

Tao Luo1, Junpeng Wen1, Wenlong Wang1, Zihan Li1, Zhe Zhu1, Jiahao Yang1, Yin Wu1, Hao Xiu1, Yiheng Fan1, Yalong Liu2, Xiaoming Wei1、*, and Zhongmin Yang1,3
Author Affiliations
  • 1School of Physics and Optoelectronics, State Key Laboratory of Luminescent Materials and Devices, Guangdong Engineering Technology Research and Development Center of Special Optical Fiber Materials and Device, Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques, South China University of Technology, Guangzhou 510640, Guangdong , China
  • 2Guangzhou Yangming Laser Technology Co., Ltd., Guangzhou 510663, Guangdong , China
  • 3Research Institute of Future Technology, South China Normal University, Guangzhou 510006, Guangdong , China
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    Configuration of femtosecond pulse laser source at 780 nm

    Fig. 1. Configuration of femtosecond pulse laser source at 780 nm

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    Performance of seed laser. (a) Optical spectrum; (b) radio-frequency spectrum; (c) oscilloscopic trace; (d) stability measurement of optical power

    Fig. 2. Performance of seed laser. (a) Optical spectrum; (b) radio-frequency spectrum; (c) oscilloscopic trace; (d) stability measurement of optical power

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    Performance of main amplifier. (a) Optical spectrum; (b) output power of main amplifier and corresponding efficiency with varying pump power; (c) stability measurement of optical power; (d) autocorrelation trace of amplified pulses after compressor, where inset shows autocorrelation trace before compressor

    Fig. 3. Performance of main amplifier. (a) Optical spectrum; (b) output power of main amplifier and corresponding efficiency with varying pump power; (c) stability measurement of optical power; (d) autocorrelation trace of amplified pulses after compressor, where inset shows autocorrelation trace before compressor

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    Performance of SHG. (a) Optical spectrum; (b) output power of second-order harmonic beam and corresponding efficiency with varying input power; (c) stability measurement of optical power; (d) autocorrelation trace of SHG at 780 nm; (e) M2 measurement of amplified laser beam; (f) M2 measurement of SHG

    Fig. 4. Performance of SHG. (a) Optical spectrum; (b) output power of second-order harmonic beam and corresponding efficiency with varying input power; (c) stability measurement of optical power; (d) autocorrelation trace of SHG at 780 nm; (e) M2 measurement of amplified laser beam; (f) M2 measurement of SHG

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    Noise performance of seed and main amplifier. (a) Phase noise of seed; (b) relative intensity noise of seed; (c) phase noise of main amplifier; (d) relative intensity noise of main amplifier

    Fig. 5. Noise performance of seed and main amplifier. (a) Phase noise of seed; (b) relative intensity noise of seed; (c) phase noise of main amplifier; (d) relative intensity noise of main amplifier

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    Photo of fiber laser after engineering integration. Left side contains most of fiber-based components, including seed, stretcher and amplifiers. Right side mainly includes compressor and SHG parts

    Fig. 6. Photo of fiber laser after engineering integration. Left side contains most of fiber-based components, including seed, stretcher and amplifiers. Right side mainly includes compressor and SHG parts

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    Tao Luo, Junpeng Wen, Wenlong Wang, Zihan Li, Zhe Zhu, Jiahao Yang, Yin Wu, Hao Xiu, Yiheng Fan, Yalong Liu, Xiaoming Wei, Zhongmin Yang. High⁃Power All⁃Polarization⁃Maintaining Fiber Femtosecond Pulse Laser at 780 nm and Its Engineering Integration (Invited)[J]. Chinese Journal of Lasers, 2024, 51(19): 1901012

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    Paper Information

    Category: laser devices and laser physics

    Received: Feb. 26, 2024

    Accepted: Apr. 8, 2024

    Published Online: Oct. 16, 2024

    The Author Email: Xiaoming Wei (xmwei@scut.edu.cn)

    DOI:10.3788/CJL240618

    CSTR:32183.14.CJL240618

    Topics

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