SiO.sub.2 -based alkali-doped optical fiber
US5146534A · kind A · utility
39Cited by
4References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 12, 1991 |
| Grant date | Sep 8, 1992 |
| Priority date | — |
| Expiry date | Nov 12, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03B2203/24
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
It has been discovered that glass of composition xM.sub.2 O.(1-x)SiO.sub.2 can have lower intrinsic loss than pure SiO.sub.2, for 0<x.ltorsim.0.03 and M=Na, K, and/or Rb. Furthermore, it has been discovered that co-doping with F can increase the range of reduced intrinsic loss to x.about.0.07, for M=K and/or Rb. Disclosed is optical fiber that comprises the novel low intrinsic loss glass,, typically in the core.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.