APPARATUS AND METHOD FOR REDUCING BREAKAGE OF FIBERS DRAWN FROM BLANKS

A fiber preform (20) is contaminated with contaminates such as silicon nitride or silicon carbide. The preform is then held in a chamber (10) with a reducing gas (29) being introduced into the chamber. The reducing gas prevents the contaminates from being oxidized. If the contaminates were oxidized,...

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Main Authors REDING, BRUCE, W, WISSUCHEK, DONALD, J., JR, DUNN, JULIAN, L, DICKINSON, JAMES, E., JR, GLAESEMANN, G., SCOTT, SNIPES, JAMES, A
Format Patent
LanguageEnglish
French
Published 07.05.1998
Edition6
Subjects
CHEMISTRY
GLASS
MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
METALLURGY
MINERAL OR SLAG WOOL
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
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Summary:A fiber preform (20) is contaminated with contaminates such as silicon nitride or silicon carbide. The preform is then held in a chamber (10) with a reducing gas (29) being introduced into the chamber. The reducing gas prevents the contaminates from being oxidized. If the contaminates were oxidized, the strengh of the final fiber would be reduced. Une ébauche de fibre (20) est contaminée par des contaminants tels que du nitrure de silicium ou du carbure de silicium. Une telle ébauche séjourne dans une chambre (10) à l'intérieur de laquelle est introduit un gaz réducteur (29). Ce gaz réducteur empêche l'oxydation des contaminants. Si ces derniers subissaient une oxydation, la résistance de la fibre résultante s'en trouverait réduite.
Bibliography:Application Number: WO1997US18041