Optical fiber and method for making such fiber
US7313312B2 · kind B2 · utility
230Cited by
9References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 11, 2005 |
| Grant date | Dec 25, 2007 |
| Priority date | — |
| Expiry date | Nov 6, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/1618
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
According to one example of the invention an optical fiber comprises: (i) silica based, rare earth doped core having a first index of refraction n1; (ii) at least one silica based cladding surrounding the core and having a second index of refraction n2, such that n1>n2; wherein at least one of the core or cladding is doped with Al2O3, such that the ratio of max wt % to min wt % of Al2O3 concentration is less than 2:1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.