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Título : | Optical and spectroscopic characterization of Er3+-Yb 3+co-doped tellurite glasses and fibers |
Autor : | NARRO GARCÍA, ROBERTO DESIRENA, H. CHILLCCE, E.F. BARBOSA, L.C. RODRIGUEZ, E. DE LA ROSA, E. |
Fecha de publicación : | 29-jul-2015 |
Citación : | Optics Communications;Volume 317, 15 April 2014, Pages 93-101 |
Resumen : | Optical and spectroscopic properties of Er3+-Yb3+ co-doped TeO2-WO3-Nb2O5-Na 2O-Al2O3 glasses and fibers were investigated. Emission spectra and fluorescence lifetimes of 4I13/2 level of Er3+ion as a function of rare earth concentration and fiber length were measured in glasses. Results show that the self-absorption effect broadens the spectral bandwidth of 4I13/2→ 4I15/2 transition and lengthens the lifetime significantly from 3.5 to 4.6 ms. Fibers were fabricated by the rod-in-tube technique using a Heathway drawing tower. The emission power of these Er3+-Yb 3+ co-doped Step Index Tellurite Fibers (SITFs; lengths varying from 2 to 60 cm) were generated by a 980 nm diode laser pump and then the emission power spectra were acquired with an OSA. The maximum emission power spectra, within the 1530-1560 nm region, were observed for fiber lengths ranging from 3 to 6 cm. The highest bandwidth obtained was 108 nm for 8 cm fiber length around 1.53 μm. © 2014 Published by Elsevier B.V. |
URI : | http://www.repositoriodigital.ipn.mx/handle/123456789/21604 |
ISSN : | 00304018 |
Aparece en las colecciones: | Artículos |
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