Glass composition and optical device made therefrom
US6512879B1 · kind B1 · utility
17Cited by
10References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 3, 2000 |
| Grant date | Jan 28, 2003 |
| Priority date | — |
| Expiry date | Nov 3, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/2308
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Phosphate free, Er/Yb co-doped borosilicate glass compositions and optical devices made from said compositions are disclosed; said compositions comprising, for 100 parts by weight of: 60 to 70 parts by weight SiO2 or SiO2+GeO2 with SiO2 always being greater than 40 parts by weight, 8 to 12 parts by weight of B2O3, 10 to 25 parts by weight M2O wherein M2O is an alkali metal oxide, 0 to 3 parts by weight of BaO, 0.1 to 5 parts by weight Er2O3, and from 0.1 to 12 parts by weight of Yb2O3 and from 0 to less than 5 parts by weight F; and within which, the boron atoms are of tetrahedral spatial coordination.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.