Optical fiber fabrication process
US4257797A · kind A · utility
25Cited by
5References
10Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Oct 1, 1979 |
| Grant date | Mar 24, 1981 |
| Priority date | — |
| Expiry date | Oct 1, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03B37/018
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of practicing the MCVD process is disclosed. In the inventive process, the core deposition is completed prior to completion of the cladding. An intermediate preform structure with a core-to-clad ratio greater than that desired in the ultimate fiber is consequently obtained. Subsequent to internal core deposition, additional material is added externally to complete the cladding thereby yielding an optical fiber preform with the desired core-to-clad ratio.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.