Work

Output characteristics of an actively Q-switched Tm:GdScO3 slab laser at 2 μm band

Year: 2024

Type: article

Abstract: An acousto-optic Q-switched Tm:GdScO3 slab laser at different pulse repetition frequencies was successfully demonstrated for the first time. The size of a slab crystal doped with a 2 at% Tm3+ is 2 mm × 4 mm × 20 mm. With the pump power of 33 W, a maximum average output power of 3.03 W was obtained with center wavelength of 1980 nm at pulse repetition frequency of 20 kHz. The optical-to-optical conversion efficiency and slope efficiency were 9.18% and 16.66%, respectively. The maximum pulse energy was 0.60 mJ with pulse width of 160 ns at 1 kHz, corresponding to the peak power of 3.75 kW. In addition, at the pump power of 33 W, the beam quality factors M 2 for horizontal and vertical directions were 1.33 and 1.08, respectively.

Source: Physica Scripta

DOI: 10.1088/1402-4896/ad770c

Authors: Jing Liu, Shanming Li, Yuqing Fan, Chuanpeng Qian, Ke Yang, Ting Yu, Chengchun Zhao, Xiangchun Shi, Yin Hang, Xisheng Ye

Institutions: Chinese Academy of Sciences, Shanghai Institute of Optics and Fine Mechanics, University of Chinese Academy of Sciences

Language: English

Topic: Solid State Laser Technologies

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $2,285

OpenAlex ID: W4402177137

FWCI:

Cites: 32

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Related to: 10