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Laser & Optoelectronics Progress, Volume. 62, Issue 1, 0114006(2025)

High-Efficiency and High-Stability LD Corner-Side-Pumped Nd∶YAG Electro-Optical Q-Switched Laser

Jiaxiang Guo1、*, Zhanda Zhu1,2,3,4, Luda Wang1, Hong Lei1,2,3,4, and Qiang Li1,2,3,4
Author Affiliations
  • 1College of Physics and Optoelectronic Engineering, Beijing University of Technology, Beijing 100124, China
  • 2Beijing Engineering Research Center of Applied 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(6)
    Composite strip laser crystal. (a) Overall diagram; (b) pump light transmission path diagram and the size of each part; (c) schematic diagram of end cutting angle and zig-zag

    Fig. 1. Composite strip laser crystal. (a) Overall diagram; (b) pump light transmission path diagram and the size of each part; (c) schematic diagram of end cutting angle and zig-zag

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    Structural diagram of electro-optical Q-switched laser

    Fig. 2. Structural diagram of electro-optical Q-switched laser

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    Output energy under different pump currents, Q-switched, and optical conversion efficiency

    Fig. 3. Output energy under different pump currents, Q-switched, and optical conversion efficiency

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    Measurements of the pulse width and beam quality of the output laser. (a) Q-switched pulse width; (b) beam quality and far-field spot

    Fig. 4. Measurements of the pulse width and beam quality of the output laser. (a) Q-switched pulse width; (b) beam quality and far-field spot

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    Q-switched continuous output energy during operation

    Fig. 5. Q-switched continuous output energy during operation

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    Laser output energy stability during repeated operation. (a) Multiple operation energy stability; (b) output energy test of non-zig-zag composite slab crystal working for 60 s

    Fig. 6. Laser output energy stability during repeated operation. (a) Multiple operation energy stability; (b) output energy test of non-zig-zag composite slab crystal working for 60 s

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    Jiaxiang Guo, Zhanda Zhu, Luda Wang, Hong Lei, Qiang Li. High-Efficiency and High-Stability LD Corner-Side-Pumped Nd∶YAG Electro-Optical Q-Switched Laser[J]. Laser & Optoelectronics Progress, 2025, 62(1): 0114006

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    Paper Information

    Category: Lasers and Laser Optics

    Received: Apr. 26, 2024

    Accepted: May. 14, 2024

    Published Online: Jan. 6, 2025

    The Author Email:

    DOI:10.3788/LOP241183

    CSTR:32186.14.LOP241183

    Topics

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