Method for making low-loss optical waveguides on an industrial scale

A method is disclosed for making an optical fiber by drawing a preform whose fabrication involves deposition of a glass on a substrate by means of a chemical reaction between gaseous reagents. According to the disclosed method, accurately controlled amounts of a gaseous reagent are produced by flash...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	FRENCH, WILLIAM G
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL GLASS INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES METALLURGY MINERAL OR SLAG WOOL SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION
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Beschreibung
Zusammenfassung:	A method is disclosed for making an optical fiber by drawing a preform whose fabrication involves deposition of a glass on a substrate by means of a chemical reaction between gaseous reagents. According to the disclosed method, accurately controlled amounts of a gaseous reagent are produced by flash evaporating a metered flow of a liquid reagent. The disclosed method is of particular interest for the industrial production of optical fibers.