Optical waveguide for fiber-optic amplifiers for the wavelength region around 1550 nm
US5710852A · kind A · utility
3Cited by
13References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 5, 1995 |
| Grant date | Jan 20, 1998 |
| Priority date | — |
| Expiry date | Jun 5, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03B2201/36
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
An optical waveguide for fiber-optic amplifiers is disclosed where the Progression of the fluorescence band of optical waveguides that are doped with erbium and aluminum can be additionally flattened if the core contains fluorine, e.g., in the form of ErF.sub.3 and AIF.sub.3, as an additional doping agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.