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Acta Optica Sinica, Volume. 42, Issue 10, 1014004(2022)

Semiconductor Saturable Absorption Mirror Mode-Locked Laser Based on Large Core Size Crystal Waveguide

Shuai Li1, Guotai Li1, Kailun Zhang1, Zhanda Zhu1,2,3,4, Yongling Hui1,2,3,4, Hong Lei1,2,3,4, and Qiang Li1,2,3,4、*
Author Affiliations
  • 1Institute of Laser Engineering Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, China
  • 2Beijing Engineering Research Center of Laser Technology, Beijing 100124, China
  • 3Beijing Colleges and Universities Engineering Research Center of Advanced Laser Manufacturing, Beijing 100124, China
  • 4Key Laboratory of Trans-Scale Laser Manufacturing Technology, Ministry of Education, Beijing 100124, China
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    Figures & Tables(5)
    Relationship between cavity length and continuous mode-locking threshold power under different spot sizes

    Fig. 1. Relationship between cavity length and continuous mode-locking threshold power under different spot sizes

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    Schematic of cavity design. (a) Experimental diagram; (b) distribution curve of light spot in cavity

    Fig. 2. Schematic of cavity design. (a) Experimental diagram; (b) distribution curve of light spot in cavity

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    Experimental device of crystal waveguide mode-locked laser with large core diameter

    Fig. 3. Experimental device of crystal waveguide mode-locked laser with large core diameter

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    Experimental results of crystal waveguide mode-locked laser. (a) Relationship between output power and absorbed pump power in continuous and mode-locked operation; (b) Q-switched mode-locked pulse sequence; (c) continuous mode-locked pulse sequence at 1200 ns; (d) continuous mode-locked pulse sequence at 120 ns

    Fig. 4. Experimental results of crystal waveguide mode-locked laser. (a) Relationship between output power and absorbed pump power in continuous and mode-locked operation; (b) Q-switched mode-locked pulse sequence; (c) continuous mode-locked pulse sequence at 1200 ns; (d) continuous mode-locked pulse sequence at 120 ns

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    Pulse parameters of continuous mode-locked laser. (a) Radio frequency spectrum; (b) spectrogram; (c) autocorrelation curve; (d) beam quality fitting curve and output fundamental mode far-field spot

    Fig. 5. Pulse parameters of continuous mode-locked laser. (a) Radio frequency spectrum; (b) spectrogram; (c) autocorrelation curve; (d) beam quality fitting curve and output fundamental mode far-field spot

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    Shuai Li, Guotai Li, Kailun Zhang, Zhanda Zhu, Yongling Hui, Hong Lei, Qiang Li. Semiconductor Saturable Absorption Mirror Mode-Locked Laser Based on Large Core Size Crystal Waveguide[J]. Acta Optica Sinica, 2022, 42(10): 1014004

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    Paper Information

    Category: Lasers and Laser Optics

    Received: Nov. 30, 2021

    Accepted: Dec. 23, 2021

    Published Online: May. 10, 2022

    The Author Email: Li Qiang (ncltlq@bjut.edu.cn)

    DOI:10.3788/AOS202242.1014004

    Topics

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