Efficient laser operation of Yb:Lu3Al5O12 transparent ceramics fabricated from laser ablated nanopowders

Liza Basyrova; Pavel Loiko; Roman Maksimov; Vladislav Shitov; Josep Maria Serres; Magdalena Aguiló; Francesc Díaz; Uwe Griebner; Valentin Petrov; Xavier Mateos

doi:10.1117/12.2545880

21 February 2020 Efficient laser operation of Yb:Lu₃Al₅O₁₂ transparent ceramics fabricated from laser ablated nanopowders

Liza Basyrova, Pavel Loiko, Roman Maksimov, Vladislav Shitov, Josep Maria Serres, Magdalena Aguiló, Francesc Díaz, Uwe Griebner, Valentin Petrov, Xavier Mateos

Author Affiliations +

Proceedings Volume 11259, Solid State Lasers XXIX: Technology and Devices; 1125910 (2020) https://doi.org/10.1117/12.2545880
Event: SPIE LASE, 2020, San Francisco, California, United States

Abstract

Ytterbium-doped transparent ceramics based on cubic garnets are promising for thin-disk lasers. 3.6 at.% Yb:Lu₃Al₅O₁₂ transparent ceramics were fabricated by a solid-state reaction at 1800 °C in vacuum using Yb:Lu₂O₃ and Al₂O₃ nanopowders produced by laser ablation and their spectroscopic properties were studied. The stimulated-emission crosssection is 2.46×10^-20 cm² at 1030.2 nm. The Stark splitting of the Yb³⁺ multiplets was also determined. A compact CW Yb:Lu₃Al₅O₁₂ ceramic laser pumped by a fiber-coupled 968 nm InGaAs laser diode generated 5.65 W at ~1031 nm with a slope efficiency of 67.2%. Using quasi-CW pumping, the peak power reached 8.83 W.

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Liza Basyrova, Pavel Loiko, Roman Maksimov, Vladislav Shitov, Josep Maria Serres, Magdalena Aguiló, Francesc Díaz, Uwe Griebner, Valentin Petrov, and Xavier Mateos "Efficient laser operation of Yb:Lu₃Al₅O₁₂ transparent ceramics fabricated from laser ablated nanopowders", Proc. SPIE 11259, Solid State Lasers XXIX: Technology and Devices, 1125910 (21 February 2020); https://doi.org/10.1117/12.2545880

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