Method for producing glass preform for optical fiber
US4731103A · kind A · utility
11Cited by
12References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 5, 1986 |
| Grant date | Mar 15, 1988 |
| Priority date | — |
| Expiry date | Nov 5, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03B2207/70
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A glass preform for an optical fiber having homogeneous distribution of bulk density in its radial direction is produced by a method comprising forming fine glass particles by jetting a gaseous glass material and a fuel gas from a burner, depositing the fine glass particles on a seed rod to form a soot rod with measuring a temperature of a part of the soot rod on which the glass particles are being deposited so as to control said temperature, and then sintering the soot rod to obtain a transparent glass preform.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.