Method of manufacturing optical fibers

Details Method of manufacturing optical fibers Method of manufacturing optical fibers

1989-02-23

1990-03-27

Schor, Kenneth M.

Glass manufacturing

Processes

Forming product or preform from molten glass

65 182, 65 183, 65 301, 65900, 65 32, 65 311, 427163, C03C 2502

Patent

active

049117424

ABSTRACT:
In order to eliminate the effect of water attack on silica optical fibres, the fibres are provided with a surface layer of silicon nitride or silicon oxynitride. The method proposed comprises direct nitridation. This may be achieved by adding a nitriding atmosphere to the drawing furnace gases, or to the reactive gases (TiCl.sub.4 and SiCl.sub.4) incorporated in the flame of an oxyhydrogen torch for the formation of a compressive silica/titania layer on an optical fibre by a glass soot deposition and sintering process.

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patent: 4501602 (1985-02-01), Miller et al.
patent: 4574063 (1986-03-01), Scherer
patent: 4608276 (1986-08-01), Lamb et al.
Hackh's Chemical Dictionary, McGraww-Hill, N.Y., N.Y., Fourth Ed. 1969, p. 457.

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