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Proceedings Paper

Near-infrared emission and energy transfer in tellurite glasses co-doped with erbium and thulium ions
Author(s): Jacek Zmojda; Marcin Kochanowicz; Tomasz Ragin; Dominik Dorosz; Maciej Sitarz
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Paper Abstract

In the paper optical properties of 40TeO2 – 20GeO2 – 30(PbO – PbF2)– 10(BaO – Nb2O5 – LaF3) glass system co-doped with Er3+/Tm3+ ions were investigated. The maximum of phonon energy at 790cm-1 in fabricated tellurite glass which was determined by FTIR measurements. Optimisation of glass composition led to the emission at 1820 nm which was observed in results of energy transfer (ET) between Er3+and Tm3+ions under the optical exciting at 976 nm. In order to determine the optimal conditions of ET between exited energy levels of co-doped RE ionsthe dependence of the near-infrared emission upon the thulium ions concentration was studied. In result of that broadband emission in the range from1500 to 1900 nm was achieved owing to the superposition of electronic transition in Er3+ (4I13/24I15/2) and Tm3+ (3F43H6) ions.The highest efficiency of energy transfer was obtained in glass co-doped with 0.2Er2O3/0.3 Tm2O3.

Paper Details

Date Published: 12 May 2014
PDF: 8 pages
Proc. SPIE 9228, Optical Fibers and Their Applications 2014, 922806 (12 May 2014); doi: 10.1117/12.2065541
Show Author Affiliations
Jacek Zmojda, Białystok Univ. of Technology (Poland)
Marcin Kochanowicz, Białystok Univ. of Technology (Poland)
Tomasz Ragin, Białystok Univ. of Technology (Poland)
Dominik Dorosz, Białystok Univ. of Technology (Poland)
Maciej Sitarz, AGH Univ. of Science and Technology (Poland)


Published in SPIE Proceedings Vol. 9228:
Optical Fibers and Their Applications 2014
Jan Dorosz; Ryszard S. Romaniuk, Editor(s)

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