Method of making a preform for an optical fiber

Details Method of making a preform for an optical fiber Method of making a preform for an optical fiber

1993-05-12

1994-10-18

Lindsay, Robert L.

Glass manufacturing

Processes of manufacturing fibers, filaments, or preforms

Process of manufacturing optical fibers, waveguides, or...

65DIG16, 65392, 65412, 65417, 65 174, C03C 2502, C03B 37023

Patent

active

053564480

ABSTRACT:
A method of making a preform for an optical fiber, in which method a plurality of layers of fluoride glass are deposited inside a support tube (10); said layers (14) are deposited by laser ablation in a controlled atmosphere using a target (12) having the composition of said glass, which target is moved back-and-forth parallel to the axis of said tube, the temperature of the enclosure (1) in which said ablation is performed being not greater than the vitreous transition temperature Tg of said glass.

REFERENCES:
patent: 4715875 (1987-12-01), Jacobson
patent: 4787927 (1988-11-01), Mears et al.
patent: 4885019 (1989-12-01), Hutta
patent: 5015281 (1991-05-01), Hall et al.
Patent Abstracts of Japan, vol. 9, No. 237 (C-305) Sep. 24, 1985 & JP-A-60 096 537 (Nippon Denki KK) May 30, 1985.

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