Optical fiber
US6636677B2 · kind B2 · utility
14Cited by
1References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 27, 2001 |
| Grant date | Oct 21, 2003 |
| Priority date | — |
| Expiry date | Jun 15, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/02347
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In an optical fiber composed of a core region and a cladding region surrounding the core region and having a plurality of regions made of sub mediums having refractive indices different from a refractive index of a main medium disposed in a main medium constituting this cladding region, these regions made of the sub mediums are arranged in one given or a plurality of a given circular annular regions and the centers of the regions made of the sub mediums in respective circular annular regions are arranged on the same circumference centered at the center of the core.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.