Acta Photonica Sinica, Volume. 49, Issue 10, 1014001(2020)

Experimental Investigation on High-order Transverse-mode of the Pr:YLF Laser by a Blue Laser-diode Off-axis Pumping

Feng-chen ZHANG... Chen-lin HUI, Qi-he SHU, Cai-hong HUANG, Dong-mei GONG and Feng-jiang ZHUANG |Show fewer author(s)
Author Affiliations
  • College of Information Science and Engineering,Huaqiao University,Xiamen,Fujian 361021,China
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    The direct generation of the visible high-order transverse-mode laser was present by employing an off-axis pumping and cavity control in a diode end-pumped Pr:YLF laser. The detailed numerical analysis was proposed based on the intensity characteristic theory about the High-order Hermite-Gaussian (HG) beam and the coherent superposition of different HG amplitudes and phases. In our setup, a blue LD was served as an end-pumped source with a pump wavelength of 442 nm, and a compact plano-concave cavity was designed for lasing. For directly obtaining hollow and high-order HG mode 720 nm laser outputs, we manipulate the resonator of the Pr:YLF laser by employing an efficient off-axis diode-pumping. The experimental results confirmed that the high-order HG beams are generally consistent with the theoretical calculations. In this paper, we experimentally demonstrated an approach for generating the hollow and high-order (HG) mode 720 nm laser beams by manipulating laser modes inside the cavity. Further researches will focus on obtaining higher energy high-order transverse-mode laser outputs, and the method in this paper has potential in the fields of optical manipulation, optical micromachining, and optical communications.

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    Feng-chen ZHANG, Chen-lin HUI, Qi-he SHU, Cai-hong HUANG, Dong-mei GONG, Feng-jiang ZHUANG. Experimental Investigation on High-order Transverse-mode of the Pr:YLF Laser by a Blue Laser-diode Off-axis Pumping[J]. Acta Photonica Sinica, 2020, 49(10): 1014001

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    Paper Information

    Category: Lasers and Laser Optics

    Received: Jun. 16, 2020

    Accepted: Aug. 6, 2020

    Published Online: Mar. 10, 2021

    The Author Email:

    DOI:10.3788/gzxb20204910.1014001

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