Method for producing optical fiber in a hydrogen atmosphere to prevent attenuation
US5059229A · kind A · utility
27Cited by
6References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 24, 1990 |
| Grant date | Oct 22, 1991 |
| Priority date | — |
| Expiry date | Sep 24, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P40/57
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical fiber is drawn from a draw blank that is situated in a furnace muffle. An end of the blank is heated to a temperature sufficient to permit a fiber to be drawn therefrom. During the fiber drawing operation, the blank is subjected to a gas containing an amount of hydrogen sufficient to reduce the number of defects in the fiber. The resultant fiber therefore experiences little or no latent attenuation increase when it is later subjected to a hydrogen containing atmosphere.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.