Drawing a chalcogenide glass fiber in a sulfur atmosphere

Details Drawing a chalcogenide glass fiber in a sulfur atmosphere Drawing a chalcogenide glass fiber in a sulfur atmosphere

1997-12-19

1999-06-29

Hoffmann, John

Glass manufacturing

Processes of manufacturing fibers, filaments, or preforms

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

65424, 65435, C03B 37027

Patent

active

059171081

ABSTRACT:
A method for manufacturing a glass fiber includes a process of drawing a starting glass material partially or entirely made of chalcogenide glass or oxychalcogenide glass, such as preform rod, rod-in-tube, or jacketing tube, into a glass fiber in an atmosphere containing sulfur. The concentration of the sulfur in the atmosphere is set at sulfur's vapor pressure or greater around the glass surface at a maximum temperature of the glass fiber while the glass fiber is drawn, thereby fabricating the glass fiber without forming substantially any crystallization on the glass surface.

REFERENCES:
patent: 4908053 (1990-03-01), Nishii
patent: 5201920 (1993-04-01), Schneider
Chemical Principles, Dickerson pp. 133 & 145 4th edition, 1984.
Abstract of JP 64-3031 Jun. 1989.

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