Process for preparing glass preform for optical fiber
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United States of America Patent
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Sep 6, 1983
Grant Date -
N/A
app pub date -
Dec 16, 1980
filing date -
Jan 22, 1980
priority date (Note) -
Expired
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Abstract
A process for producing a glass perform for optical transmission fibers, which includes supplying a gaseous silicon compound, ammonia or a gaseous nitrogen compound, and an oxygen-containing gas as starting gases into a high temperature zone to produce fine particles of SiOxNy glass and depositing the fine particles in the form of a soot or a transparent glass on a starting member to produce nitrogen-doped silica glass.
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