Multi-core holey fiber and optical transmission system
US8094985B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 25, 2009 |
| Grant date | Jan 10, 2012 |
| Priority date | — |
| Expiry date | Jun 24, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/0305
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A multi-core holey fiber with suppression of crosstalk deterioration among transmitted optical signals in a plurality of cores, and an optical transmission system using the fiber are disclosed. The multi-core holey fiber comprises a plurality of cores arranged separately from each other, and a cladding surrounding the plurality of cores wherein the cladding has plurality of holes arranged in a triangular lattice shape to create hole layers around the plurality of cores. Additionally, d/Λ is not more than 0.5, where Λ [μm] is lattice constant of the triangular lattice, d [μm] is diameter of each of the holes; a distance between adjacent cores is equivalent to not less than six hole layers; the cores arranged farthest from the center of the multi-core holey fiber is surrounded by not less three hole layers; and the sum of the coupling coefficients between the adjacent cores is not more than 1.6×10−5/m.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.