Optical fibre manufacture
US4087266A · kind A · utility
11Cited by
3References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 4, 1977 |
| Grant date | May 2, 1978 |
| Priority date | — |
| Expiry date | Apr 4, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03B2201/10
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method is described of increasing the proportion of chemical vapor reaction deposited material to substrate material in a silica optical fiber preform. The deposited material is deposited upon the bore of a silica substrate tube whose bore is then collapsed to form the preform. The preform is then heated to cause some of the surface of the preform to be driven off by volatilization in order to increase the proportion of chemical vapor reaction deposited material to substrate material up to a predetermined value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.