Optical fiber with low OH impurity and communication system using the optical fiber
US5692087A · kind A · utility
31Cited by
7References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 13, 1995 |
| Grant date | Nov 25, 1997 |
| Priority date | — |
| Expiry date | Mar 13, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03B37/01869
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An optical fiber formed from a glass preform substantially free of OH impurities is disclosed. The optical fiber is made to be free of OH impurities by a method having the steps of introducing a moving stream of vapor mixture including at least one compound glass-forming precursor together with an oxidizing medium into a tube, while generating a hydrogen-fee isothermal plasma on an outer surface of the tube to react the mixture and produce a glassy deposit on an inner surface of the tube. The glass preform is drawn to produce the optical fiber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.