Intense near-infrared emission of 1.23 μm in erbium-doped low-phonon-energy fluorotellurite glass

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

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Author(s)

  • Bo Zhou
  • Lili Tao
  • Clarence Yat-Yin Chan
  • Yuen Hong Tsang
  • Wei Jin

Related Research Unit(s)

Detail(s)

Original languageEnglish
Pages (from-to)49 - 53
Journal / PublicationSpectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy
Volume111
Publication statusPublished - Jul 2013

Abstract

Intense near-infrared emission located at 1.23 μm wavelength originating from the erbium (Er3+):S-4(3/2) -> I-4(11/2) transition is observed in Er3+-doped fluorotellurite glasses. This emission is mainly contributed by the relatively low phonon energy of the fluorotellurite glass host (similar to 776 cm(-1)). Judd-Ofelt analysis indicates a strong asymmetry and covalent environment between Er3+ ions and ligands in the host matrix. The emission cross-section was calculated to be 2.85 x 10(-21) cm(2) by the Fuchtbauer-Ladenburg equation, and the population inversion is realized according to a simplified evaluation. The results suggest that the fluorotellurite glass system could be a promising candidate for the development of optical amplifiers and lasers operating at the relatively unexplored 1.2 mu m wavelength region. (C) 2013 Elsevier B.V. All rights reserved.

Research Area(s)

  • Er3+ 1.23 μm emission, Fluorotellurite glass, Low phonon energy, Population inversion

Citation Format(s)

Intense near-infrared emission of 1.23 μm in erbium-doped low-phonon-energy fluorotellurite glass. / Zhou, Bo; Tao, Lili; Chan, Clarence Yat-Yin; Tsang, Yuen Hong; Jin, Wei; Pun, Edwin Yue-Bun.

In: Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy, Vol. 111, 07.2013, p. 49 - 53.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal