Optical amplifier with pump light source control for raman amplification
US6624926B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 23, 2000 |
| Grant date | Sep 23, 2003 |
| Priority date | — |
| Expiry date | Oct 23, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2210/077
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A Raman amplifier for amplifying a wavelength division multiplexed (WDM) light including signal lights wavelength division multiplexed together. The amplifier includes an optical amplifying medium and a controller. The optical amplifying medium uses Raman amplification to amplify the WDM light in accordance with multiplexed pump lights of different wavelengths traveling through the optical amplifying medium. The WDM light is amplified in a wavelength band divided into a plurality of individual wavelength bands. The controller controls power of each pump light based on a wavelength characteristic of gain generated in the optical amplifying medium in the individual wavelength bands.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.