Apparatus for the production of hermetically coated optical fibe

Details Apparatus for the production of hermetically coated optical fibe Apparatus for the production of hermetically coated optical fibe

1993-05-25

1994-10-04

Lindsay, Robert L.

Glass manufacturing

Fiber making apparatus

Having coating or treating means

65423, 65533, 65435, 65421, 118718, 118719, C03B 37023

Patent

active

053522613

ABSTRACT:
There is provided an apparatus for the production of a hermetically coated optical fiber in which a glass preform for an optical fiber is melt drawn in a melt drawing furnace to produce a bare optical fiber which is passed to a reactor where a feed gas is supplied and the bare optical fiber is coated with a thin carbon coating made from the feed gas by the Chemical Vapor Deposition method characterized in that the reactor comprises an upper portion to which the feed gas is supplied, a middle portion in which the CVD method is substantially carried out and a lower portion from which an exhausted gas is withdrawn, and a cross sectional area of the middle portion perpendicular to a longitudinal direction of the optical fiber is larger than that of the upper portion.

REFERENCES:
patent: 4608276 (1986-08-01), Lamb et al.
patent: 4713103 (1987-12-01), Pennanen et al.
patent: 4790625 (1988-12-01), Biswas et al.
patent: 4904292 (1990-02-01), Neusy
patent: 5256177 (1993-10-01), Bennett et al.

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