Drawing a chalcogenide glass fiber in a sulfur atmosphere
US5917108A · kind A · utility
6Cited by
2References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 19, 1997 |
| Grant date | Jun 29, 1999 |
| Priority date | — |
| Expiry date | Dec 19, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03B2201/86
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.