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Proceedings Paper

Steady-state characterization of up-conversion quenching in Er-doped glasses with the use of hypersensitive bands of ESA and GSA spectra
Author(s): Nikolai V. Nikonorov; Alexander K. Przhevuskii; Alexander V. Chukharev
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Paper Abstract

A steady-state method was used for characterization of up- conversion quenching in Er-doped glasses. This method is based on measurement of pumping dependencies of quantum yield and the population of the 4I13/2 metastable manifold. The population was determined from absorption spectra variation under the pump of semiconductor laser. The feature of the method consists in measurement of absorption spectra variation in short-wave spectral range of 300 - 520 nm. In this spectral region, a hypersensitive excited state absorption (ESA) band ((lambda) equals 478 nm) for 4I13/2 yields 4G9/2 transition was detected. The following parameters characterizing absolute intensity of ESA band were determined: line strength, integral cross- section, cross-section in maximum, and oscillator strength. This band was used for evaluation of the population of the 4I13/2 metastable manifold and up-conversion coefficients. The up-conversion coefficient, Cup equals 1.7 X 10-17 cm3s-1, was obtained for an Er3+ concentration of 6.8 X 1020 cm-3.

Paper Details

Date Published: 13 April 2000
PDF: 9 pages
Proc. SPIE 3942, Rare-Earth-Doped Materials and Devices IV, (13 April 2000); doi: 10.1117/12.382857
Show Author Affiliations
Nikolai V. Nikonorov, Corning Scientific Ctr. (Russia)
Alexander K. Przhevuskii, Institute of Fine Mechanics and Optics (Russia)
Alexander V. Chukharev, Institute of Fine Mechanics and Optics (Russia)


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

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