Wide-band optical amplifiers with interleaved gain stages
US6396623B1 · kind B1 · utility
16Cited by
16References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2001 |
| Grant date | May 28, 2002 |
| Priority date | — |
| Expiry date | Jan 31, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2210/003
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Amplifiers having multiple gain stages are provided. Some of the gain stages provide gain in a first wavelength band and some of the gain stages provide gain in a second wavelength band. The gain stages that provide gain in the first band are interleaved with the gain stages that provide gain in the second band. The gain stages may be based on rare-earth-doped fiber amplifiers, Raman-pumped fiber amplifiers, or other suitable optical amplifiers. Gain stages may be used that include parallel amplifier branches. Each of the parallel branches may handle a separate wavelength range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.