High photoluminescence in erbium-doped chalcogenide thin films

    Authors

    J. Fick; E. J. Knystautus; A. Villeneuve; F. Schiettekatte; S. Roorda;K. A. Richardson

    Comments

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    Abbreviated Journal Title

    J. Non-Cryst. Solids

    Keywords

    WAVE-GUIDES; GLASS; ER; EXCITATION; Materials Science, Ceramics; Materials Science, Multidisciplinary

    Abstract

    The spectral properties of the chalcogenide glasses As2S3 and As24S38Se38-doped with Er3+ are presented and discussed, Thin films were formed by thermal evaporation and the erbium doping was obtained by subsequent ion implantation. Strong Er3+ emission at 1.54 mu m has been observed. The high refractive index of these chalcogenide glasses lead to Er3+ emission cross-sections (15 x 10(-21) cm(2)) which are two times higher than for doped silica glass. The lifetime of the Er3+ metastable I-4(13/2) energy level was measured to be 2.3 ms. This short lifetime is consistent with the high emission cross-section. Furthermore, the very low phonon energies of chalcogenide glasses lead to relatively long lifetimes of the Er3+ I-4(11/2) pump level, which have been measured to be of the ol-der of 0.25 ms. These spectral properties make this glass a good candidate for applications in the field of integrated optics. (C) 2000 Elsevier Science B.V. All rights reserved.

    Journal Title

    Journal of Non-Crystalline Solids

    Volume

    272

    Issue/Number

    2-3

    Publication Date

    1-1-2000

    Document Type

    Article

    Language

    English

    First Page

    200

    Last Page

    208

    WOS Identifier

    WOS:000089190900014

    ISSN

    0022-3093

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