Fluorophosphate glasses for active device
US10988406B2 · kind B2 · utility
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10Claims
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Key dates
| Filing date | May 21, 2018 |
| Grant date | Apr 27, 2021 |
| Priority date | — |
| Expiry date | May 21, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C13/042
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Disclosed is fluorophosphate glasses for an active device, the fluorophosphate glasses including: a metaphosphate composition including Mg(PO3)2 of about 20 mol % to about 60 mol %; a fluoride composition including BaF2 of about 20 mol % to about 60 mol % and CaF2 of about 0 mol % to about 40 mol %; and dopants including rare earth elements, in which there is an effect of increasing a carrier lifetime at a metastable state energy level that is stimulated-emitted due to an efficient energy transfer phenomenon by composition optimization of dopants (e.g. Er and Yb).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.