Non-linear optical properties of chalcogenide glasses in the system As-S-Se

    Authors

    T. Cardinal; K. A. Richardson; H. Shim; A. Schulte; R. Beatty; K. Le Foulgoc; C. Meneghini; J. F. Viens;A. Villeneuve

    Comments

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    Abbreviated Journal Title

    J. Non-Cryst. Solids

    Keywords

    FIBER; Materials Science, Ceramics; Materials Science, Multidisciplinary

    Abstract

    We report results of a systematic study examining the relationship of bond type and concentration to the linear and non-linear optical properties of As-S-Se glasses. The effects of iso-structural substitution of Se for S and the resulting impact on structure and the non-linear refractive index, n(2), are discussed. Non-linear optical properties of As-S-Se chalcogenide glasses were measured by the Z-scan technique at 1.6 mu m, and measured n(2) up to 400 times the n(2) for silica were observed. Such large n(2) for glasses with small As/(S + Se) molar ratios is correlated with the presence of covalent, homopolar Se-Se bonds in the glass structure as identified by Raman spectroscopy, and can not be attributed to any red shift in the absorption edge or to a resonant effect. The suitability of these glasses for planar waveguides based on such nonlinear properties is thus confirmed, and recent fabrication results are described. (C) 1999 Published by Elsevier Science B.V. All rights reserved.

    Journal Title

    Journal of Non-Crystalline Solids

    Volume

    256

    Publication Date

    1-1-1999

    Document Type

    Article; Proceedings Paper

    Language

    English

    First Page

    353

    Last Page

    360

    WOS Identifier

    WOS:000083334800062

    ISSN

    0022-3093

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