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Proceedings Paper

Rate equation analyses and energy transfer of Er3+-doped sulfide glasses
Author(s): Kohei Kadono; Jerome Porque; Bor-Chyuan Hwang; Shibin Jiang; Tetsuo Yazawa; Nasser Peyghambarian
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Paper Abstract

Decay curves of 1.5 micrometers (4I13/2) and 980 nm (4I11/2) emissions from Er3+ ions in Ga2S3-GeS2-La2S3 glasses were measured by the excitation of 1.5 micrometers laser diode pump. The decay curves were simulated using rate equations for a model consisting of four levels (4I15/2, 4I13/2, 4I11/2, and 4I9/2) of Er3+. A pair of unknown parameters, i.e., an excited state absorption coefficients for 4I13/2 yields 4I9/2, (sigma) esa, and a cooperative upconversion coefficient for (4I13/2, 4I13/2) yields (4I9/2, 4I15/2), C, were included in the rate equations. They were estimated by fitting the simulated curves to the measured ones. The obtained values were 3 X 10-21 cm2 and 1 or 3 X 10-21 cm3/s for the (sigma) esa and C, respectively.

Paper Details

Date Published: 13 April 2000
PDF: 7 pages
Proc. SPIE 3942, Rare-Earth-Doped Materials and Devices IV, (13 April 2000);
Show Author Affiliations
Kohei Kadono, Osaka National Research Institute (Japan)
Jerome Porque, Optical Sciences Ctr./Univ. of Arizona (United States)
Bor-Chyuan Hwang, Optical Sciences Ctr./Univ. of Arizona (United States)
Shibin Jiang, Optical Sciences Ctr./Univ. of Arizona (United States)
Tetsuo Yazawa, Osaka National Research Institute (Japan)
Nasser Peyghambarian, Optical Sciences Ctr./Univ. of Arizona (United States)

Published in SPIE Proceedings Vol. 3942:
Rare-Earth-Doped Materials and Devices IV
Shibin Jiang, Editor(s)

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