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US 5,346,520 AGranted
Apparatus for applying a carbon coating to optical fibers
AssigneeCorning Incorporated
InventorsJoseph C. Meabon, Michelle R. Tuzzolo, Eric H. Urruti
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Abstract
A reactor for applying a carbon coating to an optical waveguide fiber wherein the buildup of reaction by-products within the reactor is reduced by providing internal and external fiber exit ports with the diameter of the internal fiber exit port being greater than the diameter of the external fiber exit port, and gas shielding at the external fiber exit port.
Claims9
A reactor vessel for applying an amorphous carbon coating to an optical waveguide fiber, comprising
- means for supplying reactant gas to said reactor vessel,
- an internal fiber exit port,
- an angled surface extending from said internal fiber exit port to the inner perimeter of said reactor vessel,
- an external fiber exit port, and
- a means for providing an inert gas shield at said external fiber exit port,
- wherein the inside diameter of said internal fiber exit port is chosen such that a boundary layer of gases and reaction by-products formed near the surface of said fiber is substantially undisrupted.
3 more elements
Dependencies are inferred from the claim text.