Raman studies of tungsten yttrium tellurite glasses as high and broad gain media

P. R. Prezas; J. Suresh Kumar; M. P. F. Graça; M. J. Soares

doi:10.1117/12.2063780

22 August 2014 Raman studies of tungsten yttrium tellurite glasses as high and broad gain media

P. R. Prezas, J. Suresh Kumar, M. P. F. Graça, M. J. Soares

Proceedings Volume 9286, Second International Conference on Applications of Optics and Photonics; 928635 (2014) https://doi.org/10.1117/12.2063780
Event: Second International Conference on Applications of Optics and Photonics, 2014, Aveiro, Portugal

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.

Citation Download Citation

P. R. Prezas, J. Suresh Kumar, M. P. F. Graça, and M. J. Soares "Raman studies of tungsten yttrium tellurite glasses as high and broad gain media", Proc. SPIE 9286, Second International Conference on Applications of Optics and Photonics, 928635 (22 August 2014); https://doi.org/10.1117/12.2063780

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