Method of fabricating large optical preforms

Details Method of fabricating large optical preforms Method of fabricating large optical preforms

1978-04-10

1980-11-04

Fisher, Richard V.

Glass manufacturing

Processes

Forming product or preform from molten glass

427163, C03B 37025, C03B 37075

Patent

active

042317746

ABSTRACT:
A large optical preform is fabricated by rotating a platform about its axis while advancing the platform away from a series of nozzles. Each nozzle is arranged to generate an annular ring associated with the preform by a vapor phase oxidation technique. The vapor content introduced by each nozzle is tailored to provide a large diameter optical preform possessing step index, single mode or graded index capabilities. The preform thus produced is then drawn into elongated optical fiber cables having the above described properties.

REFERENCES:
patent: 3303115 (1967-02-01), Nitsche
patent: 3957474 (1976-05-01), Kobayashi et al.
patent: 4017288 (1977-04-01), French et al.
patent: 4050408 (1977-09-01), Beucherie
patent: 4062665 (1977-12-01), Izawa et al.
patent: 4135901 (1979-01-01), Fujiwara et al.

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