Growth and spectroscopic investigations of new crystal Er3+,Ce3+:NaLa(MoO4)2 promising for 1.5 &#956;m solid-state lasers

K. A. Subbotin; D. A. Lis; E. Sani; A. Toncelli; M. Tonelli; V. A. Smirnov; E. V. Zharikov

doi:10.1117/12.677044

9 June 2006 Growth and spectroscopic investigations of new crystal Er³⁺,Ce³⁺:NaLa(MoO₄)₂ promising for 1.5 μm solid-state lasers

K. A. Subbotin, D. A. Lis, E. Sani, A. Toncelli, M. Tonelli, V. A. Smirnov, E. V. Zharikov

Author Affiliations +

Proceedings Volume 6258, ICONO 2005: Novel Photonics Materials: Physics and Optical Diagnostics of Nanostructures; 625805 (2006) https://doi.org/10.1117/12.677044
Event: ICONO 2005, 2005, St. Petersburg, Russian Federation

Abstract

Scheelite-like disordered double sodium-lanthanum molybdate NaLa(MoO₄)₂ single crystals co-doped with Er³⁺ and different concentrations of Ce³⁺ have been grown by Czochralski technique. The 300K spectroscopic properties of the excited states ⁴S_3/2, ⁴I_11/2 and ⁴I_13/2 of Er³⁺ ions in grown crystals as a function of Cerium concentration have been investigated. The lifetime of ⁴I_11/2 have been found to reduce from 130 μs in the solely Er-doped sample to approximately 3.5 μs, when the concentration of Ce reaches 50 at. %. At the same time the lifetime of ⁴I_13/2 level at 300 K remains unchanged (3.7 ms) up to the concentration of Ce in crystal equal to 10 at. %, and reduces by less than 30% (2.6 ms) in the 50 at. % Ce co-doped sample. This result looks very promising from point of view of obtaining low-threshold 1.5 μm laser oscillation.

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K. A. Subbotin, D. A. Lis, E. Sani, A. Toncelli, M. Tonelli, V. A. Smirnov, and E. V. Zharikov "Growth and spectroscopic investigations of new crystal Er³⁺,Ce³⁺:NaLa(MoO₄)₂ promising for 1.5 μm solid-state lasers", Proc. SPIE 6258, ICONO 2005: Novel Photonics Materials: Physics and Optical Diagnostics of Nanostructures, 625805 (9 June 2006); https://doi.org/10.1117/12.677044

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