Low loss optical fibers

Details Low loss optical fibers Low loss optical fibers

1979-10-04

1981-09-15

Lindsay, Jr., Robert L.

Glass manufacturing

Processes

Forming product or preform from molten glass

65 13, 65121, 427163, C03C 2502

Patent

active

042895162

ABSTRACT:
A method is provided for making an optical fiber by melting and cladding a multi-component core glass without adding the contamination that is normally associated with these processes. As an initial step, a pure multi-component glass is melted in a high purity silica crucible. The temperature of the glass in the crucible and the temperature of the orifice thereof are controlled so that a cane of glass is drawn from the bottom of the crucible. This cane of glass is fed into a silica or borosilicate tube which is being drawn into a fiber. This results in an optical fiber in which the multi-component glass forms the core while the tube forms the cladding.

REFERENCES:
patent: 4116653 (1978-09-01), Irvin
patent: 4155733 (1979-05-01), Sandbank et al.

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