Optical fiber fabrication

Details Optical fiber fabrication Optical fiber fabrication

1980-02-01

1982-06-15

Fisher, Richard V.

Glass manufacturing

Processes

Forming product or preform from molten glass

65 182, 427163, 427231, 427237, C03B 3707, C03B 37075

Patent

active

043349030

ABSTRACT:
A preform for fabrication of a glass fiber optical transmission line is prepared by chemical reaction of vapor ingredients within a glass tube. Reaction, which may be between chlorides or hydrides of, for example, silicon and germanium with oxygen, occurs preferentially within a constantly traversing hot zone. Flow rates and temperature are sufficient to result in glass formation in the form of particulate matter on the inner surface of the tube. This particulate matter deposits on the tube and is fused with each passage of the hot zone. Continuous rotation of the tube during processing permits attainment of higher temperatures within the heated zone without distortion of the tube.

REFERENCES:
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patent: 3737292 (1973-06-01), Keck et al.
patent: 3737293 (1973-06-01), Maurer
patent: 3823995 (1974-07-01), Carpenter
patent: 3826560 (1974-07-01), Schultz
patent: 3843229 (1974-10-01), Rosenberger
patent: 3884550 (1975-05-01), Maurer et al.
patent: 3961926 (1976-06-01), Asam
patent: 4217027 (1980-08-01), MacChesney et al.
Powell et al., Vapor Deposition, John Wiley and Sons, Inc., New York, 1966: pp. 11, 12, 149-153, 259-263 and 391-397.
Steinmaier et al., "Successive Growth of Si and SiO.sub.2 in Epitaxial Apparatus", J. El. Soc., vol. 111, 1964: pp. 206-209.
Kern et al., "Chemical Vapor Deposition of Silicate Glasses . . . ", J. El. Soc., vol. 117, 190: pp. 562-568.
MacChesney et al., "Preparation of Low Loss Optical Fibers . . . ", Tenth Int. Congress on Glass, Jul. 1974: pp. 6-40 to 6-45.

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