2-W Ho:LaF 3 laser intracavity pumped with a Tm:YLF laser

In this paper, we explore the laser properties of a 2.1 µm Ho:LaF 3 laser intracavity pumped by a LD-pumped Tm:YLF laser. Ho:LaF 3 crystals, with a doping concentration of 2%, have been verified as a novel type of laser gain material, whose luminescence lifetime of the 5 I 7 level was up to 25.7 ms....

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Bibliographic Details
Published inOptical materials express Vol. 14; no. 7; p. 1749
Main Authors Li, Chun, Din, Syed Zaheer Ud, Leng, Yuxin, Li, Shanming, Hang, Yin, Ni, Jiasheng
Format Journal Article
LanguageEnglish
Published 01.07.2024
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Summary:In this paper, we explore the laser properties of a 2.1 µm Ho:LaF 3 laser intracavity pumped by a LD-pumped Tm:YLF laser. Ho:LaF 3 crystals, with a doping concentration of 2%, have been verified as a novel type of laser gain material, whose luminescence lifetime of the 5 I 7 level was up to 25.7 ms. The Ho:LaF 3 laser achieved an average output power of 2.07 W with a slope efficiency of 16.2%. The dual-wavelength output centered at 2089 nm and 2093 nm and exhibited excellent spot quality with M 2 x and M 2 y values of 1.19 and 1.23, respectively. Our results effectively demonstrate the impressive capability of Ho:LaF 3 crystals for generating high-power 2.1 µm mid-infrared lasers.
ISSN:2159-3930
2159-3930
DOI:10.1364/OME.525463