M. A. Borik, E. E. Lomonova, A. V. Malov, A. V. Kulebyakin, P. A. Ryabochkina, S. N. Ushakov, M. A. Uslamina, A. N. Chabushkin, “Spectral, luminescent, and lasing properties of ZrO2—Y2O3—Tm2O3 crystals”, Kvantovaya Elektronika, 2012, Volume 42, Number 7,Pages 580

This article is cited in 7 papers

Lasers

Spectral, luminescent, and lasing properties of ZrO₂—Y₂O₃—Tm₂O₃ crystals

M. A. Borik^a, E. E. Lomonova^a, A. V. Malov^b, A. V. Kulebyakin^a, P. A. Ryabochkina^b, S. N. Ushakov^a, M. A. Uslamina^b, A. N. Chabushkin^b

^a Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow
^b Ogarev Mordovia State University, Saransk

Abstract: The absorption spectra corresponding to the transitions from the ground ³H₆ state to the excited multiplets ¹G₄, ³F₂, ³F₃, ³H₄, ³H₅, ³F₄, as well as the luminescence spectrum of the ³F₄ → ³H₆ laser transition of Tm³⁺ ions excited to the ³H₄ level in ZrO₂ — 12 mol % Y₂O₃ — 2 mol % Tm₂O₃ crystals are studied at a temperature of 300 K. The cross-relaxation (³H₄ → ³F₄, ³H₆ → ³F₄) efficiency of Tm³⁺ ions estimated by the integral characteristics of decay curves of luminescence from the ³H₄ level exceeds 90 %. The spectral dependences of the gain cross section of the ³F₄ → ³H₆ laser transition of Tm³⁺ ions are calculated for different relative population inversions. Lasing at the ³F₄ → ³H₆ transition of Tm³⁺ ions in diode-pumped ZrO₂ — 12 mol % Y₂O₃ — 2 mol % Tm₂O₃ crystals is obtained for the first time. The lasing wavelength is 2046 nm.

Keywords: absorption spectrum, luminescence spectrum, lasing, Tm³⁺ ions, ZrO₂—Y₂O₃—Tm₂O₃ crystals.

PACS: 42.70.Hj, 78.60.Lc, 42.55.Rz

Received: 04.04.2012
Revised: 01.06.2012