Continuously tuned (Tm0.05Sc0.252Y0.698)(2)O-3 ceramic laser with emission peak at 2076 nm

Year: 2021

Authors: Pirri A., Maksimov R.N., Shitov V.A., Osipov V.V., Sani E., Patrizi B., Vannini M., Toci G.

Autors Affiliation: CNR, IFAC, Ist Fis Applicata Carrara, Via Madonna Piano 10C, I-50019 Sesto Fiorentino, FI, Italy; RAS, Inst Electrophys UrB, Amundsen St 106, Ekaterinburg 620016, Russia; Ural Fed Univ, Mira St 19, Ekaterinburg 620002, Russia; CNR, INO, Ist Nazl Ott, Largo Enrico Fermi 6, I-50125 Florence, Italy; CNR, INO, Ist Nazl Ott, Via Madonna Piano 10C, I-50019 Sesto Fiorentino, FI, Italy.

Abstract: We report on the first laser action of a (Tm0.05Sc0.252Y0.698)2O3 ceramic sample, which was made by solidstate vacuum sintering of laser-ablated mixed sesquioxide nanoparticles. Pumped at 793 nm in quasi-CW mode, it delivers 1.24 W with a slope efficiency of 9.45% at 2076 nm. We have measured the absorption spectra at several temperatures, from 93 K to 293 K, calculating the absorption coefficients by Lambert-Beer formula. Moreover, emission cross sections were calculated by Fuchtbauer-Ladenburg starting from the fluorescence spectra measured at room temperature. Spectroscopic data where compared with those obtained by (Tm0.05Y0.95)2O3 fabricated with the same method. Finally, the ceramic tunability was explored finding a tuning range as broad as 181 nm (from 1927.5 nm to 2108.5 nm).

Journal/Review: JOURNAL OF ALLOYS AND COMPOUNDS

Volume: 889      Pages from: 161585-1  to: 161585-7

More Information: This work was supported in part by the Joint Bilateral Agreement National Research Council (CNR), Italy/Russian Foundation for Basic Research (RFBR), Russia, 2018-2020 (RFBR Grant No. 18-53-7815 Ital_t, CNR project SAC.AD002.020.016).
KeyWords: Tm; (ScxY1-x)(2)O-3; Thulium lasing properties; Tm-based transparent ceramics; Low temperature absorption spectra; Optical properties
DOI: 10.1016/j.jallcom.2021.161585

Citations: 12
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