Method for producing hermetic coated optical fiber

Details Method for producing hermetic coated optical fiber Method for producing hermetic coated optical fiber

1992-12-03

1994-01-25

Lindsay, Robert L.

Glass manufacturing

Processes

Forming product or preform from molten glass

65 12, 65 13, 427590, C03B 37023

Patent

active

052812472

ABSTRACT:
A hermetic coated optical fiber is produced by preparing a bare optical fiber by melting and drawing an optical fiber preform in a fiber drawing furnace and introducing the bare optical fiber in a reactor in which a raw material gas is introduced and forming a hermetic coating film around a surface of the bare optical fiber by a chemical vapor deposition method or pyrolysis in the reactor, wherein a part of an inert gas for purging the fiber drawing furnace which has been heated by a heater equipped in the furnace is exhausted and a rest of the inert gas is introduced in the reactor for diluting the raw material gas.

REFERENCES:
patent: 4911742 (1990-03-01), Newbould et al.
patent: 4988374 (1991-01-01), Harding et al.
patent: 5062687 (1991-11-01), Sapsford

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