Multimode fiber
US8009950B2 · kind B2 · utility
41Cited by
38References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 22, 2010 |
| Grant date | Aug 30, 2011 |
| Priority date | — |
| Expiry date | Apr 22, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0288
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A multimode optical fiber comprises a central core having an alpha profile, a depressed cladding having a portion in continuity with the alpha profile of the central core and a stepped portion, and an outer cladding. The alpha profile is obtained by co-doping at least two dopants. The variation in concentration of each dopant and its derivative in relation to the fiber radius are continuous. A multimode fiber for Ethernet optical system with an improved bandwidth is thus obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.