Optical fibre manufacture

Details Optical fibre manufacture Optical fibre manufacture

1977-04-04

1978-05-02

Lindsay, Jr., Robert L.

Glass manufacturing

Processes

Forming product or preform from molten glass

65 3A, 65 13, 65 29, 65DIG7, C03C 2502, C03B 3704

Patent

active

040872661

ABSTRACT:
A method is described of increasing the proportion of chemical vapor reaction deposited material to substrate material in a silica optical fiber preform. The deposited material is deposited upon the bore of a silica substrate tube whose bore is then collapsed to form the preform. The preform is then heated to cause some of the surface of the preform to be driven off by volatilization in order to increase the proportion of chemical vapor reaction deposited material to substrate material up to a predetermined value.

REFERENCES:
patent: 3961926 (1976-06-01), Asam
patent: 3980459 (1976-09-01), Li
patent: 4009014 (1977-02-01), Black et al.

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