Multi-channel fiber optic rotatable interconnection system
US5392370A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 21, 1994 |
| Grant date | Feb 21, 1995 |
| Priority date | — |
| Expiry date | Apr 21, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/3604
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A multi-channel fiber optic rotatable interconnection system for coupling tical signals from a plurality of diverse optical signal sources at a source location to a like plurality of optical signal receivers at a destination location rotatable relative to each other. The interconnection system comprises an input fiber and an output fibber both of which are comprised of step-index multi-mode optical fibers. The input fiber includes an input end which receives optical signals from the optical signal sources, the fiber forming a composite optical signal therefrom. The optical signal sources are positioned at diverse polar angles relative to the input end of the input fiber to provide a plurality of optical transmission modes having minimal crosstalk, so that the composite optical signal can be resolved into its component optical signals at the destination. A rotatable coupler is positioned co-axially between the input fiber and the output fiber thereby no allow the input fiber and the output fiber to rotate axially relative to each other. The rotatable coupler couples the composite optical signal from the input fiber to the output fiber. A signal detection arrangement positioned axial…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.