Method of manufacturing an optical fiber having a protective coating
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United States of America Patent
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Apr 3, 1990
Issued Date -
N/A
app pub date -
Dec 8, 1988
filing date -
Sep 13, 1984
priority date (Note) -
Expired
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Abstract
A method of and a device for manufacturing an optical fiber with a protective coating. A cooling device cools the fiber after drawing from a preform. The cooling device comprises a forced-cooled double-walled tube. In the space enclosed by the inner tube through which the fiber to be cooled is passed, a gas is present which has good heat-transporting properties. The gas may be, for example, helium. Cooling of the fiber takes place by heat dissipation via the helium to the forced-cooled tube wall.
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