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

V. A.G. Rivera, L. C. Barbosa

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

21 Citas (Scopus)

Resumen

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 (8.4×10-21 cm2) and a good quantum yield (93%). The spectroscopic quality factors (Ω46) 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.

Idioma originalInglés
Páginas (desde-hasta)116-123
Número de páginas8
PublicaciónJournal of Luminescence
Volumen156
DOI
EstadoPublicada - dic 2014

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