A new approach of preform fabrication for chalcogenide fiber

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 silica container. The two glasses, chosen in the Te– As–Se system, are prepared separately by purificat...

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Bibliographic Details
Published in:Journal of non-crystalline solids 2003, 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
Subjects:
Chemical Sciences
Engineering Sciences
Material chemistry
Materials
Optics
Photonic
Online Access:Get full text
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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 silica 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 tellurium. 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.
ISSN:0022-3093
DOI:10.1016/S0022-3093(03)00451-4