Laser & Optoelectronics Progress, Volume. 60, Issue 15, 1514005(2023)

End-Pumped Out-of-Focus Thin Disk Vortex Laser

Tianhong Lian*, Jiahua Zhu, Jianning Liu, and Mingxing Jiao
Author Affiliations
  • School of Mechanical and Precision Instrument Engineering, Xi'an University of Technology, Xi'an 710048, Shaanxi, China
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    A thin disk vortex laser end-pumped out-of-focus is presented. When the focus of the convergent pump beam is located in the thin Nd∶YAG disk, the laser operates in the fundamental mode. While the focus is moved out of the thin disk, the laser generates a vortex beam with an order of 1, and the handedness can be changed by finely tuning the tilt angle of the output mirror. A continuous wave output power of 0.57 W and a Q-switched pulse output power of 0.48 W, with the repetition rate of 10 kHz, pulse width of 35.2 ns, single pulse energy of 0.048 mJ, and peak power of 1.37 kW is experimentally demonstrated. This scheme of vortex laser is free of specially designed pump beams and laser resonators, and thus is compact in structure.

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    Tianhong Lian, Jiahua Zhu, Jianning Liu, Mingxing Jiao. End-Pumped Out-of-Focus Thin Disk Vortex Laser[J]. Laser & Optoelectronics Progress, 2023, 60(15): 1514005

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    Paper Information

    Category: Lasers and Laser Optics

    Received: Jun. 20, 2022

    Accepted: Jul. 11, 2022

    Published Online: Aug. 11, 2023

    The Author Email: Lian Tianhong (tianhongl@126.com)

    DOI:10.3788/LOP221877

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