Long band optical amplifier
US6421172B1 · kind B1 · utility
6Cited by
3References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 27, 1999 |
| Grant date | Jul 16, 2002 |
| Priority date | — |
| Expiry date | Dec 27, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/08086
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The optical amplifier includes a first gain medium having an optical host that contains a rare earth dopant and a first pump that supplies optical energy at a first wavelength into this first gain medium. The first pump operates at a pump wavelength that has a lower inversion saturation than the highest wavelength of absorption of the first gain medium. The optical amplifier further comprises a second gain medium operatively coupled to the first gain medium and a second pump that supplies optical energy into the second gain medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.