METHOD FOR DRAWING BASE MATERIAL FOR OPTICAL FIBER

PURPOSE:To obtain easily a base material for an optical fiber having a uniform outside diameter by setting a base material for an optical fiber in a heat resistant jig, attaching both ends of the base material to chucks, heating the base material with a burner through the jig, and moving the jig to...

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Bibliographic Details
Main Authors YAMAGIWA TOSHIYUKI, NARITA YOSHIHIRO
Format Patent
LanguageEnglish
Published 07.06.1985
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 obtain easily a base material for an optical fiber having a uniform outside diameter by setting a base material for an optical fiber in a heat resistant jig, attaching both ends of the base material to chucks, heating the base material with a burner through the jig, and moving the jig to draw the base material. CONSTITUTION:A porous base material manufactured by a vapor axial deposition method is sintered in an electric furnace to form a transparent base material 2 for an optical fiber. The base material 2 is set in a die-shaped heat resistant jig 7 of a heat resistant material having a prescribed inside diameter, and both ends of the base material 2 in the longitudinal direction are attached to the chuck 5 of the fixed part of a glass lathe and the chuck 6 of the moving part so that the jig 7 is present on the fixed part side. The chucks 5, 6 are rotated, the base material 2 is softened by heating with a burner 4 through the jig 7, and the jig 7, together with the chuck 6, is moved in the direction of arrows to draw the base material 2 to a prescribed outside diameter.
Bibliography:Application Number: JP19830212208