Raman amplifiers with modulated pumps
US6456426B1 · kind B1 · utility
33Cited by
19References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 7, 2001 |
| Grant date | Sep 24, 2002 |
| Priority date | — |
| Expiry date | Aug 7, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/094096
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Optical amplifiers are provided in which optical gain is produced by Raman pumping fiber. The Raman-pumped fiber may be a span of transmission fiber or a coil of fiber in a discrete amplifier. Raman pump light may be provided using laser diodes operating at different wavelengths. The Raman pump light that is produced by the laser diodes may be modulated to reduce pump interactions in the fiber. Raman pump light may be modulated by directly modulating the laser diodes or by using optical components that modulate constant power pump light from the laser diodes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.