Highly efficient lasing and thermal properties of Tm:Y2O3 and Tm:(Y,Sc)2O3 ceramics

Kirill Eremeev; Pavel Loiko; Roman Maksimov; Roman Maksimov; Vladislav Shitov; Vladimir Osipov; Dmitry Vakalov; Viacheslav Lapin; Patrice Camy; Weidong Chen; Uwe Griebner; Valentin Petrov; Alain Braud

doi:10.1364/OL.495516

Optics Letters
Vol. 48,
Issue 15,
pp. 3901-3904
(2023)
•https://doi.org/10.1364/OL.495516

Highly efficient lasing and thermal properties of Tm:Y₂O₃ and Tm:(Y,Sc)₂O₃ ceramics

Kirill Eremeev, Pavel Loiko, Roman Maksimov, Vladislav Shitov, Vladimir Osipov, Dmitry Vakalov, Viacheslav Lapin, Patrice Camy, Weidong Chen, Uwe Griebner, Valentin Petrov, and Alain Braud

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Kirill Eremeev, Pavel Loiko, Roman Maksimov, Vladislav Shitov, Vladimir Osipov, Dmitry Vakalov, Viacheslav Lapin, Patrice Camy, Weidong Chen, Uwe Griebner, Valentin Petrov, and Alain Braud, "Highly efficient lasing and thermal properties of Tm:Y₂O₃ and Tm:(Y,Sc)₂O₃ ceramics," Opt. Lett. 48, 3901-3904 (2023)

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Abstract

We report on thermal, spectroscopic, and laser properties of transparent 5 at.% Tm³⁺-doped yttria and “mixed” yttria-scandia ceramics fabricated by vacuum sintering at 1750°C using nanoparticles produced by laser ablation. The solid-solution (Tm_0.05Y_0.698Sc_0.252)₂O₃ ceramic features a broadband emission extending up to 2.3 µm (gain bandwidth, 167 nm) and high thermal conductivity of 4.48 W m⁻¹ K⁻¹. A Tm:Y₂O₃ ceramic laser generated 812 mW at 2.05 µm with a slope efficiency η of 70.2%. For the Tm:(Y,Sc)₂O₃ ceramic, the output power was 523 mW at 2.09 µm with η = 44.7%. These results represent record-high slope efficiencies for any parent or “mixed” Tm³⁺-doped sesquioxide ceramics.

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Supplementary Material (1)

Name	Description
Supplement 1	SEM images/ In-line tramsission spectra

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Data underlying the results presented in this paper are not publicly available at this time but may be obtained from the authors upon reasonable request.

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