Optical and spectroscopic characterization of Er3+-Yb3+ co-doped tellurite glasses and fibers

Autor(es)

Narro-Garcia, R. ^{[1, 2]} ; Desirena, H. ^[2] ; Chillcce, E. F. ^[1] ; Barbosa, L. C. ^[1] ; Rodriguez, E. ^[3] ; De la Rosa, E. ^[2]

Afiliação do(s) autor(es)

^[1] Univ Estadual Campinas UNICAMP, Inst Fis GlebWataghin, BR-13083970 Campinas, SP - Brazil

^[2] Ctr Invest Opt, Leon 37150, Gto - Mexico

^[3] Inst Politecn Nacl CICATA Unidad Altamira, Tamaulipas 89600 - Mexico

• Tipo de documento: Artigo Científico
• Fonte: Optics Communications; v. 317, p. 93-101, APR 15 2014.
• Citações Web of Science: 13

Resumo

Optical and spectroscopic properties of Er3+-Yb3+ co-doped TeO2-WO3-Nb2O5-Na2O-Al2O3 glasses and fibers were investigated. Emission spectra and fluorescence lifetimes of I-4(13/2) 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 I-4(13/2)-> I-4(15/2) 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+-Yb3+ 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 um. (C) 2014 Published by Elsevier B.V. (AU)