Method for making and coating optical fibres

Details Method for making and coating optical fibres Method for making and coating optical fibres

1985-03-25

1986-07-15

Lindsay, Robert

Glass manufacturing

Processes

Forming product or preform from molten glass

65 312, 65 32, C03B 37027, C03C 2504

Patent

active

046004220

ABSTRACT:
Infrared optical fibres are provided with hermetic coatings (6) by decomposition or reaction of volatile compounds of the coating material at the surface of the fibre. Materials having melting points greater than the fibre's glass transition temperatures may thus be applied at temperatures lower than the glass transition temperatures. The fibre (1) may be sufficiently hot from a preceding fibre formation (2,3) process in line with the coating process to enable the decomposition or reaction, or additional heating of the fibre by radiation may be necessary in the reaction chamber (7).

REFERENCES:
patent: 2938821 (1980-05-01), Nack
patent: 3046170 (1962-07-01), Toulmin
patent: 4321073 (1982-03-01), Blair
patent: 4381141 (1983-04-01), Sakuragi et al.
patent: 4418984 (1983-12-01), Wysocki et al.
PCT WO80/00157 Schladitz, Feb. 7, 1980.

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