Multi-core fiber
US8406595B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 21, 2011 |
| Grant date | Mar 26, 2013 |
| Priority date | — |
| Expiry date | Sep 23, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/03661
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention relates to a multi-core fiber having a structure for effectively suppressing crosstalk increase between cores caused by bending within an allowable range. The multi-core fiber comprises a plurality of types of cores respectively extending along an optical axis and a cladding region, and the effective refractive index of each core is set so that, in all pairs of cores of different types, a relative refractive index difference between an effective refractive index of a core of a certain type and an effective refractive index of a core of another type satisfies a condition regulated according to a core spacing between cores and a bending radius.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.