Method of manufacturing an optical fiber preform having doped cl

Details Method of manufacturing an optical fiber preform having doped cl Method of manufacturing an optical fiber preform having doped cl

1990-08-02

1992-02-25

Fisher, Richard V.

Glass manufacturing

Processes

Forming product or preform from molten glass

15DIG16, 15 183, 385127, C03C 2502

Patent

active

050909797

ABSTRACT:
According to the present invention, a preform (7) for an optical fiber is made from a tube having a substrate layer (16) of fluorine-doped silica and a support layer (18) of non-doped silica. A cladding layer (8) of fluorine-doped silica and a core layer (10) of non-doped silica are formed on the inside surface of the tube by chemical vapor phase deposition. The optical fiber is subsequently obtained by collapsing the tube and drawing it. The invention is applicable to fabricating optical fibers.

REFERENCES:
patent: 4199337 (1980-04-01), Asam
patent: 4230396 (1980-10-01), Olshansky et al.
patent: 4385802 (1983-05-01), Blaszyk et al.
patent: 4435040 (1984-03-01), Cohen et al.
patent: 4579571 (1986-04-01), Hicks
patent: 4822136 (1989-04-01), Hicks

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