Cladding-pumped fiber with helical rare-earth-doped core for fiber lasers and amplifiers
US6650664B1 · kind B1 · utility
5Cited by
2References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 19, 2001 |
| Grant date | Nov 18, 2003 |
| Priority date | — |
| Expiry date | Jan 19, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/094003
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A high power fiber laser/amplifier is comprised of a multi-mode rare-earth-doped helical core disposed within a cylindrical inner cladding. The inner cladding is enclosed within an outer cladding whereby the core effectively produces single-mode operation with a circularly polarized near-diffraction-limited beam quality output when pump radiation is injected into the inner cladding.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.