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Proceedings Paper

The study of spectroscopic and luminescence properties of disordered laser crystals calcium niobium gallium garnet doped with Er3+
Author(s): P. A. Ryabochkina; Yu. K. Voronko; A. V. Malov; M. O. Marychev; A. A. Sobol; S. N. Ushakov; E. V. Chuprunov
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Paper Abstract

The results of spectroscopy of disordered Er-doped calcium-niobium- gallium garnets (CNGG: Er) are displayed. Based on the Judd-Ofelt theory, three intensity parameters Ωt (t=2, 4, 6) for Er ions concentration from 6 at. % in these crystals were obtained. The oscillator strength for hypersensitivity transition 4I15/22H11/2 and intensity parameter Ω2 of Er3+ ions in CNGG: Er crystals are higher than corresponding values for other Er-doped garnets. These results we explain by the presence in these crystals of optical centers Er with the environment symmetry lower than D2. Gain crosssection for laser transition 4I13/24I15/2 of Er3+ ions was obtained using absorption and emission cross-data for transition 4I15/24I13/2 and 4I13/24I15/2 respectively.

Paper Details

Date Published: 16 April 2008
PDF: 7 pages
Proc. SPIE 6998, Solid State Lasers and Amplifiers III, 69981B (16 April 2008); doi: 10.1117/12.774470
Show Author Affiliations
P. A. Ryabochkina, Mordovian State Univ. (Russia)
Yu. K. Voronko, General Physics Institute (Russia)
A. V. Malov, Mordovian State Univ. (Russia)
M. O. Marychev, N.I. Lobachevsky State Univ. of Nizhni Novgorod (Russia)
A. A. Sobol, General Physics Institute (Russia)
S. N. Ushakov, General Physics Institute (Russia)
E. V. Chuprunov, N.I. Lobachevsky State Univ. of Nizhni Novgorod (Russia)

Published in SPIE Proceedings Vol. 6998:
Solid State Lasers and Amplifiers III
Jonathan A. Terry; Thomas Graf; Helena Jelínková, Editor(s)

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