Process for preparing glass preform for optical fiber
US4402720A · kind A · utility
46Cited by
5References
15Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Dec 16, 1980 |
| Grant date | Sep 6, 1983 |
| Priority date | — |
| Expiry date | Dec 16, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S65/16
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A process for producing a glass perform for optical transmission fibers, which includes supplying a gaseous silicon compound, ammonia or a gaseous nitrogen compound, and an oxygen-containing gas as starting gases into a high temperature zone to produce fine particles of SiOxNy glass and depositing the fine particles in the form of a soot or a transparent glass on a starting member to produce nitrogen-doped silica glass.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.