Helical fiber amplifier
US6496301B1 · kind B1 · utility
141Cited by
2References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 10, 2000 |
| Grant date | Dec 17, 2002 |
| Priority date | — |
| Expiry date | Mar 10, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/08045
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A multi-mode gain fiber is provided which affords substantial improvements in the maximum pulse energy, peak power handling capabilities, average output power, and/or pumping efficiency of fiber amplifier and laser sources while maintaining good beam quality (comparable to that of a conventional single-mode fiber source). These benefits are realized by coiling the multimode gain fiber to induce significant bend loss for all but the lowest-order mode(s).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.