PRODUCTION OF OPTICAL FIBER

PURPOSE:To form hermetic layers between a core part and clad part by adopting a so-called rod-in tube method. CONSTITUTION:A single layer or multiple layers of the hermetic layers 7 are previously formed by vapor deposition or sputtering, etc., or the outer periphery of a preform rod 5 forming the c...

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Bibliographic Details
Main Authors SAKURAI ISAMU, FUKADA TOMOCHIKA, KATOU MAKISHIGE, WATANABE HIDE, MORISHITA YUICHI
Format Patent
LanguageEnglish
Published 19.05.1995
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:PURPOSE:To form hermetic layers between a core part and clad part by adopting a so-called rod-in tube method. CONSTITUTION:A single layer or multiple layers of the hermetic layers 7 are previously formed by vapor deposition or sputtering, etc., or the outer periphery of a preform rod 5 forming the core part of the inner peripheral surface of a tube 6. The hermetic layers 7 consist of a carbon or metal. Forming of the hermetic layers 7 at a specified thickness between the rod 5 and the tube 6 and spinning thereof are possible according to the rod-in tube method. The hermetic layers 7 are otherwise formed by subjecting a metal oxide or halide to a reduction treatment. Adhesion of molten metal on the rod or tube is equally satisfactory.
Bibliography:Application Number: JP19930298928