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.

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

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)