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Proceedings Paper

Raman studies of tungsten yttrium tellurite glasses as high and broad gain media
Author(s): P. R. Prezas; J. Suresh Kumar; M. P. F. Graça; M. J. Soares
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Paper Abstract

TeO2 based glasses with the molar composition (70-x-y)TeO2-20WO3-10Y2O3-xEr2O3-yYb2O3, where x = 0 and 0.5 mol% and y = 0, 0.5, 1, 2 and 4 mol%, were prepared by the melt quenching technique. The Raman spectra of the vitreous samples, using laser excitation line of 532 nm showed a band distribution related with Te-O and W-O bond vibrations. The introduction of WO3 results in a higher bandwidth relatively to SiO2 based glasses and even other TeO2 based glasses, making this vitreous system promising for Raman optical amplification. The use of UV laser excitation line of 325 nm induced surface modifications on the samples.

Paper Details

Date Published: 22 August 2014
PDF: 5 pages
Proc. SPIE 9286, Second International Conference on Applications of Optics and Photonics, 928635 (22 August 2014); doi: 10.1117/12.2063780
Show Author Affiliations
P. R. Prezas, Univ. de Aveiro (Portugal)
J. Suresh Kumar, Univ. de Aveiro (Portugal)
M. P. F. Graça, Univ. de Aveiro (Portugal)
M. J. Soares, Univ. de Aveiro (Portugal)

Published in SPIE Proceedings Vol. 9286:
Second International Conference on Applications of Optics and Photonics
Manuel Filipe P. C. Martins Costa; Rogério Nunes Nogueira, Editor(s)

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