Method of manufacturing optical fibres having a core and a cladd

Details Method of manufacturing optical fibres having a core and a cladd Method of manufacturing optical fibres having a core and a cladd

1988-10-06

1989-08-08

Lindsay, Robert L.

Glass manufacturing

Processes

Forming product or preform from molten glass

65 311, 65 17, 65 61, 65 65, 65120, C03B 37012

Patent

active

048549568

ABSTRACT:
The invention relates to a method of manufacturing optical fibres in which a quartz glass tube is coated on the inside with core material, the assembly is contracted to form a solid rod which is then inserted into a quartz glass tube, after which the assembly is drawn. The last tube is thermally treated to eliminate contaminations at the surface which may detrimentally influence the tensile strength of the ultimate fibre.

REFERENCES:
patent: 3811857 (1974-05-01), Deeg et al.
patent: 4345928 (1982-08-01), Kawachi et al.
patent: 4491463 (1985-01-01), Weinstein et al.
Dr. G. Koel, "Technical and Economic Aspects of the Different Fiber Fabrication Processes" in Proc. 8th European Conf. on Optical Communication (8ECOC), Cannes, Sep. 1982.

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