Optical fiber combiner, and laser system using the same
US8983249B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 21, 2014 |
| Grant date | Mar 17, 2015 |
| Priority date | — |
| Expiry date | Mar 21, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/2383
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical fiber combiner 1 has: a plurality of input optical fibers 20; a plurality of divergence angle reducing members 50 which lights emitted from the respective input optical fibers 20 enter and which emits the lights from the input optical fibers 20 at divergence angles made lower than divergence angles upon entrance; a bridge fiber 30 which the lights emitted from the respective divergence angle reducing members 50 enter and which has a tapered portion 34 which has a portion in which the lights propagate and a diameter of which is gradually reduced apart from a divergence angle reducing member 50 side; and an output optical fiber 40 which a light emitted from a side of the bridge fiber 30 opposite to the divergence angle reducing member 50 side enters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.