Optical fiber manufacture
US4009014A · kind A · utility
26Cited by
2References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 3, 1975 |
| Grant date | Feb 22, 1977 |
| Priority date | — |
| Expiry date | Sep 3, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03B2207/87
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A fiber optic preform is provided by depositing phosphorus pentoxide as a dopant on the bore of a silica tube to form a high refractive index layer and collapsing the tube to form a core of high index phosphorus pentoxide doped silica.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.