Method and apparatus for the production of optical fibers with lateral gaseous injection
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United States of America Patent
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-
Jul 3, 1984
Grant Date -
N/A
app pub date -
Apr 1, 1982
filing date -
Apr 8, 1981
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention relates to an apparatus for producing a preform for constituting an optical fiber. This apparatus essentially comprises a glass maker's lathe and a motor which holds and rotates a hollow silica tube, a torch making it possible to heat a cross-section of the tube and which can be translated along the tube and means for supplying the gaseous compounds consisting of silicon chloride, oxygen and doping agents decomposing under the action of the heat. Part of the products obtained is deposited on the walls of the tube. The supply means comprise a pipe entering the tube in axial manner and at the end of which are provided two radially directed arms, which terminate with an outlet normal to the pipe and arm, said pipe moving in translation integrally with the torch.
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