Optical fiber amplifiers and lasers and optical pumping device therefor
US6608951B1 · kind B1 · utility
Inventors
Key dates
| Filing date | Nov 28, 2000 |
| Grant date | Aug 19, 2003 |
| Priority date | — |
| Expiry date | Apr 16, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/094019
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method and apparatus for high power, broad gain, high efficiency, low noise, cladding pumped fiber amplifiers and lasers. The present invention utilizes a fiber taper in which the inner cladding decreases from a wide to narrow portion with the fiber core remaining the same diameter. The apparatus includes a light guiding section and a light source. The light guiding section has a cladding layer surrounding a fiber core with a fiber taper. The light source is arranged to couple pump light into the side of the cladding layer at the wide diameter portion. The pump light essentially propagates along the tapered portion towards the narrow diameter portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.