Large bandwidth optical fibers
US4560247A · kind A · utility
11Cited by
9References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 1, 1983 |
| Grant date | Dec 24, 1985 |
| Priority date | — |
| Expiry date | Jul 1, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0285
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Multimode optical fibers are described comprising a cylindrical core with a radius a.sub.o exhibiting an index of refraction n.sub.o surrounded by a cladding having an outer radius a in which the index of refraction varies continually from the core to the periphery from a value of n.sub.1 to a lower value n.sub.e. Between the core and cladding there is a step change .DELTA.n in their respective indices of refraction whose value is a function of the ratio a.sub.o /a. Such fibers have both slight attenuation and slight dispersion and can be manufactured using processes similar to those used in making step-index optical fibers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.