Method of forming optical fibers

Details Method of forming optical fibers Method of forming optical fibers

1977-03-02

1978-08-29

Lindsay, Jr,, Robert L.

Glass manufacturing

Processes

Forming product or preform from molten glass

65 3A, 65 12, 65 13, 65 30R, 106 50, 106 54, C03B 3702

Patent

active

041100905

ABSTRACT:
A process is described for forming glass optical fibers by heating a glass composition to vaporize a component of the composition at the surface to reduce the refractive index of the glass surface. Four alternative processes can be used: heat treating a fiber preform followed by drawing the fiber, simultaneous heat treating and fiber pulling from a glass melt, fiber pulling followed by heat treating or heat treating the surface of a melt followed by drawing a fiber or preform so that the surface of the melt comprises the cladding.

REFERENCES:
patent: 3856494 (1974-12-01), Kitano
patent: 3881945 (1975-05-01), Trojer
patent: 3981707 (1976-09-01), Araujo et al.
patent: 4009014 (1977-02-01), Black et al.
patent: 4040807 (1977-08-01), Midwinter
patent: 4076512 (1978-02-01), Mellor et al.
Pat. Assoc. Lit., "Optic Fibers Based on Phosphosilicate Glass", Gambling et al., Proc IEE vol. 123, No. 6, 6/1976, pp. 570-575.
Pat. Assoc. Lit., "Doped-Deposited-Silica Fibers for Communications", Maurer Proc. IEE vol. 123, No. 6, 6/1976, pp. 581-585.

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