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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Spectroscopic properties of Er3+-doped sodium-modified tellurite glasses for use as optical amplifiers at 1540 nm

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Rivera, V. A. G. [1] ; Barbosa, L. C. [2]
Total Authors: 2
[1] Univ Sao Paulo, INOF, Inst Fis Sao Carlos, BR-13560970 Sao Carlos, SP - Brazil
[2] Univ Estadual Campinas, Dept Quantum Elect, Inst Fis Gleb Wataghin, BR-13083970 Campinas, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: Journal of Luminescence; v. 156, p. 116-123, DEC 2014.
Web of Science Citations: 18

The impact of different sodium concentrations on the thermal properties and near-infrared emission at 1540 nm of Er3+-doped tellurite glasses was investigated. The glasses were characterized by UV-visible-near-infrared absorption spectroscopy, emission spectroscopy, Raman spectroscopy, refractive index measurements, and lifetime estimates. A theoretical analysis of the prepared samples was performed with the Judd-Ofelt parameters, radiative transition probability, quantum yield, and radiative lifetime. The glasses presented a large calculated emission cross-section at around 1537 nm (8.4 x 10(-21) cm(2)) and a good quantum yield (93%). The spectroscopic quality factors (Omega(4)/Omega(6)) obtained for the samples showed good agreement with the emission spectrum and bandwidth in the near-infrared region. The advantageous spectroscopic characteristics, together with good thermal stability, indicate that the glasses have potential applications as 1540 nm waveguides. (C) 2014 Elsevier B.V. All rights reserved. (AU)

FAPESP's process: 11/21293-0 - Planar waveguides for optical telecommunications from plasmonic
Grantee:Victor Anthony Garcia Rivera
Support Opportunities: Scholarships abroad - Research Internship - Post-doctor
FAPESP's process: 09/08978-4 - Planar Waveguide for Telecommunications from Plasmons
Grantee:Victor Anthony Garcia Rivera
Support Opportunities: Scholarships in Brazil - Post-Doctoral