High-efficiency 2  μm continuous-wave laser in laser diode-pumped Tm3+ , La3+ : CaF2 single crystal

Optics Letters
Zhen ZhangLiangbi Su

Abstract

A Tm3+, La3+:  CaF2 single crystal was grown, and its spectral properties and laser performance were investigated. Under diode end-pumping, a continuous-wave laser has been demonstrated. The slope efficiency of up to 67.8% was first achieved in the co-doping crystal, which is close to twice the theoretical quantum efficiency. A maximum output power of 4.269 W and a broad tunable range of 192 nm were also obtained, indicating this system is a promising candidate for highly efficient ∼2  μm lasers.

References

Oct 1, 1992·Physical Review. B, Condensed Matter·V A FrenchM Kokta
Oct 8, 2004·Applied Optics·Grady J KochUpendra N Singh
May 4, 2005·Optics Letters·Gianluca GalzeranoPaolo Laporta
Jul 10, 2010·Journal of Biomedical Optics·Temel BiliciMurat Gülsoy
Sep 29, 2017·Optics Letters·X LiuJ Bian
Mar 14, 2018·Optics Express·Alberto SottileMauro Tonelli

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Citations

Jan 16, 2019·Optics Letters·Jingjing LiuLiangbi Su
Aug 17, 2020·Optics Letters·Romain ThouroudeMathieu Laroche
Dec 28, 2019·Optics Express·Quanxin NaDianyuan Fan
Jul 2, 2019·Optics Letters·H ChenR Yasuhara

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