Title

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

Authors

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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