A new approach of preform fabrication for chalcogenide fibers

A new approach is investigated for the fabrication of double index chalcogenide glass fibers. The preform is obtained by an original technique based on build-in casting inside a sealed SiO2 container. The two glasses, chosen in the Te-As-Se system, are prepared separately by purification, melting an...

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Bibliographic Details
Published in:Journal of non-crystalline solids 2003-10, Vol.326-327, p.451-454
Main Authors: Le Coq, David, Boussard-Plédel, Catherine, Fonteneau, Gilles, Pain, Thierry, Bureau, Bruno, Adam, Jean-Luc
Format: Article
Language:English
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Summary:A new approach is investigated for the fabrication of double index chalcogenide glass fibers. The preform is obtained by an original technique based on build-in casting inside a sealed SiO2 container. The two glasses, chosen in the Te-As-Se system, are prepared separately by purification, melting and homogenization of the raw elements under vacuum. The core/clad structure is obtained by using a core composition, which is enriched with Te. A strict control of the fabrication parameters allows one to obtain well-defined core/clad diameter ratios. The preform is drawn at 270 C and coated on line by a protective polymer. 10 refs.
ISSN:0022-3093
DOI:10.1016/S0022-3093(03)00451-4