Optical coupler comprising multimode fibers and method of making the same
US7046875B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 29, 2003 |
| Grant date | May 16, 2006 |
| Priority date | — |
| Expiry date | Jul 16, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/2821
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical coupler is provided. It has a bundle of multimode fibers with a few-mode fiber in its centre. Such bundle is fused at one end which is the output end for the signal that is transmitted by the few-mode fiber. To make the coupler, this output end of the bundle is aligned and spliced with a large area core double clad fiber while preserving the modal content of the feed-through. A method for making such optical coupler is also provided. It includes the steps of bundling a central few-mode fiber with a plurality of multimode fibers and then fusing one end of such bundle and aligning it and splicing with a large core double clad fiber, while preserving fundamental mode transmission from one to the other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.