Optical fiber and optical transmission medium
US7529453B2 · kind B2 · utility
8Cited by
4References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 13, 2006 |
| Grant date | May 5, 2009 |
| Priority date | — |
| Expiry date | Sep 13, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/02385
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical fiber includes a core region and a cladding region. The cladding region includes a first cladding region on outer circumference of the core region, which includes a main-medium region and a sub-medium region having a refractive index lower than that of the main-medium region. The sub-medium region includes a plurality of inner sub-medium regions arranged along the outer circumference of the core region and a plurality of outer sub-medium regions arranged on outer of the inner sub-medium regions. The outer sub-medium regions have a lateral cross section larger than that of the inner sub-medium regions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.