This article is cited in 8 papers

Lasers

Lasing characteristics of ZrO₂ – Y₂O₃ – Ho₂O₃ crystal

M. A. Borik^a, E. E. Lomonova^a, A. A. Lyapin^b, A. V. Kulebyakin^a, P. A. Ryabochkina^b, S. N. Ushakov^a, A. N. Chabushkin<sup>b

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

Abstract: The spectral dependences of the gain cross section of the ⁵I₈ → ⁵I₇, ⁵I₇ → ⁵I₈ transition of Ho³⁺ ions in the ZrO₂ – 13.6 mol % Y₂O₃ – 0.4 mol % Ho₂O₃ crystal are calculated at different relative population inversions using the absorption and luminescence spectra of the ⁵I₈ → ⁵I₇ and ⁵I₇ → ⁵I₈ transitions of Ho³⁺ ions at T = 300 K. Lasing of these crystals at the ⁵I₇ → ⁵I₈ transition is obtained for the first time under pumping by a Tm : YLiF₄ laser (λ_p = 1.905 μm). The lasing wavelength is 2.17 μm.

Keywords: absorption spectrum, luminescence spectrum, lasing, Ho³⁺ ions, ZrO₂–Y₂O₃–Ho₂O₃ crystals.

PACS: 42.55.Rz, 42.60.Jf, 42.60.Lh

Received: 13.06.2013

 English version: Quantum Electronics, 2013, 43:9, 838–840

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