2024
DOI: 10.1088/1402-4896/ad770c
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Output characteristics of an actively Q-switched Tm:GdScO3 slab laser at 2 μm band

Jing Liu,
Shanming Li,
Yuqing Fan
et al.

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 w… Show more

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