Antimony oxide glass with optical activity
US6410467B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 8, 1999 |
| Grant date | Jun 25, 2002 |
| Priority date | — |
| Expiry date | Apr 8, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C13/048
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A glass consisting essentially of antimony oxide. An optically active glass consisting essentially of antimony oxide and up to about 4 mole % of an oxide of a rare earth element. A rare earth-doped, antimony oxide-containing glass including 0-99 mole % SiO2, 0-99 mole % GeO2, 0-75 mole % (Al, Ga)2O3, 0.5-99 mole % Sb2O3, and up to about 4 mole % of an oxide of a rare earth element. The oxide of the rare earth element may comprise Er2O3. The glass of the invention further includes fluorine, expressed as a metal fluoride. An optical energy-producing or light-amplifying device, in particular, an optical amplifier, comprising the above-described glass. The optical amplifier can be either a fiber amplifier or a planar amplifier, either of which may have a hybrid composition. Embodiments of the glass of the invention can be formed by conventional glass making techniques, while some of the high content antimony oxide embodiments are formed by splat or roller quenching.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.