Method of making optical waveguides from glass fibers

Details Method of making optical waveguides from glass fibers Method of making optical waveguides from glass fibers

1975-05-05

1976-09-21

Lindsay, Jr., Robert L.

Glass manufacturing

Processes

Forming product or preform from molten glass

65 13, 219121L, 219121LM, 240 4136, 4251744, 425392, C03B 3702

Patent

active

039817059

ABSTRACT:
A procedure is described for drawing glass fibers which are particularly suitable for use in optical waveguides. A laser is used as a souce of heat and an optical system is provided for focusing an annular beam around a glass preform from which the glass fiber is drawn. Particular attention is devoted to the optical focusing system to provide highly uniform distribution of heat and insure very precise short and long term fiber diameter control and precise control of the optical properties (freedom from scattering centers, profile of optical properties across the diameter) of the fiber. Precise diameter control of glass fibers for optical waveguides is highly desirable because it minimizes optical losses and facilitates low-loss splicing of individual glass fibers.

REFERENCES:
patent: 1691307 (1928-11-01), Schimpff
patent: 3622739 (1971-11-01), Steffen
patent: 3652248 (1972-03-01), Loxley et al.
patent: 3662165 (1972-05-01), Osteen et al.
patent: 3754132 (1973-08-01), Mamrud et al.
patent: 3865564 (1975-02-01), Jaeger et al.

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