Dispersion-controlled optical fiber
US6999667B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 19, 2003 |
| Grant date | Feb 14, 2006 |
| Priority date | — |
| Expiry date | Jan 3, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0228
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Disclosed is an optical fiber comprising a center core which forms a passageway for transmitting optical signals and has a refractive index N1, and a cladding which encloses the center core and has a refractive index N0. The optical fiber further comprises an upper core, which has a distribution of refractive indices increased starting from a refractive index N2 (>N0) at its outer circumference to the refractive index N1 at its internal circumference, and a minutely depressed refractive index region, which is interposed between said upper core and cladding and has a refractive index N3. The refractive index N3 is lower than the refractive index N0.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.