Multi-core amplification optical fiber
US9423559B2 · kind B2 · utility
3Cited by
12References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 13, 2013 |
| Grant date | Aug 23, 2016 |
| Priority date | — |
| Expiry date | Jul 15, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/06741
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A multi-core amplification optical fiber includes: a plurality of core portions doped with a rare-earth element; an inner cladding portion positioned at a periphery of the plurality of core portions, having a refractive index lower than a refractive index of the plurality of core portions, in which a first hole is formed; and an outer cladding layer positioned at a periphery of the inner cladding portion, having a refractive index lower than the refractive index of the inner cladding portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.