Process for producing optical fiber preform

Details Process for producing optical fiber preform Process for producing optical fiber preform

1980-07-21

1982-03-09

Fisher, Richard V.

Glass manufacturing

Processes

With shaping of particulate material and subsequent fusing...

65 312, 65 13, 65 32, C03B 1906

Patent

active

043187269

ABSTRACT:
A process for producing an optical fiber preform which comprises forming a particulate glass rod in which the dopant concentration gradually increases toward the center of its cross section, and gradually heating the rod starting at a temperature below the minimum collapsing point of the fine glass particles in the center of the rod in such a manner that the softening of the rod proceeds from the center outward, to thereby produce a transparent glass rod.

REFERENCES:
patent: 3806570 (1974-04-01), Flamenbaum et al.
patent: 3868170 (1975-02-01), DeLuca
patent: 4203744 (1980-05-01), Schultz et al.

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