Methods for reducing the water content of optical waveguide fibers
US4684383A · kind A · utility
11Cited by
3References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 30, 1986 |
| Grant date | Aug 4, 1987 |
| Priority date | — |
| Expiry date | Jan 30, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03B37/01202
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Methods are provided for reducing the water content of optical waveguide fibers produced from blanks having a centerline aperture and having compositions which prevent cooling of the blank to room temperature between consolidation and drawing. In accordance with certain aspects of the invention, the water content is reduced by storing the blanks at as low a temperature as possible, preferably below about 550.degree. C. In accordance with other aspects, the water content is reduced by filling the apertures of the blanks with an inert atmosphere during storage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.