Optical fiber amplifiers and lasers and optical pumping devices therefor and methods of fabricating same
US6731837B2 · kind B2 · utility
41Cited by
8References
40Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 14, 2001 |
| Grant date | May 4, 2004 |
| Priority date | — |
| Expiry date | Jun 6, 2022 |
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 allows a much higher pump light intensity in the inner cladding of a double cladding fiber to be achieved than is possible with conventionally pumped double cladding fiber amplifiers. 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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.