PRODUCTION OF PREFORM FOR OPTICAL FIBER

PURPOSE:To prevent the sticking of fine glass particles to the tip of a multiply- tubed burner and to effectively produce a porous glass preform as an intermediate for producing a preform for an optical fiber. CONSTITUTION:When gaseous starting material for glass is jetted from a multiply-tubed burn...

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Bibliographic Details
Main Authors HIRASAWA HIDEO, KOIDE HIROYUKI, KAMIYA KAZUO, IINUMA HITOSHI
Format Patent
LanguageEnglish
Published 09.07.1993
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:PURPOSE:To prevent the sticking of fine glass particles to the tip of a multiply- tubed burner and to effectively produce a porous glass preform as an intermediate for producing a preform for an optical fiber. CONSTITUTION:When gaseous starting material for glass is jetted from a multiply-tubed burner, oxidized and hydrolyzed in an oxyhydrogen flame and the resulting fine glass particles are deposited on the tip or periphery of a rotating starting member to produce a preform for an optical fiber, inert gas flowing through a nozzle between a nozzle for jetting a gaseous mixture of the gaseous starting material for glass fed into the burner with gaseous oxygen and a nozzle for jetting gaseous hydrogen is heated to >=150 deg.C.
Bibliography:Application Number: JP19910353695