Method of drawing an optical fiber

Details Method of drawing an optical fiber Method of drawing an optical fiber

1997-11-18

1999-04-27

Chin, Peter

Glass manufacturing

Processes of manufacturing fibers, filaments, or preforms

Process of manufacturing optical fibers, waveguides, or...

65424, 65434, 65510, 65513, 65532, 65538, C03B 3702, C03B 37025

Patent

active

058976817

ABSTRACT:
To draw an optical fiber (10) from one end of a glass preform (9) which is heated to above the glass softening temperature at least in that area, a gas (21) flows around the preform (9) into a furnace space (16) during the drawing process and subsequent feeding of the preform. During the feeding, the areas that are adjacent to the drawing end of the preform (9) pass through gas zones in which the helium content of the furnace gas increases in the drawing direction.

REFERENCES:
patent: 3540870 (1970-11-01), Li
patent: 4673427 (1987-06-01), Van Der Giessen et al.
patent: 5356449 (1994-10-01), Kuwahara et al.
patent: 5377491 (1995-01-01), Schulte

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