Methods and devices based on brillouin selective sideband amplification
US6535328B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 18, 2000 |
| Grant date | Mar 18, 2003 |
| Priority date | — |
| Expiry date | Dec 18, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/2916
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Opto-electronic devices and techniques using Brillouin scattering to select a sideband in a modulated optical carrier signal for amplification. Two lasers respectively provide a carrier signal beam and a Brillouin pump beam which are fed into an Brillouin optical medium in opposite directions. The relative frequency separation between the lasers is adjusted to align the frequency of the backscattered Brillouin signal with a desired sideband in the carrier signal to effect a Brillouin gain on the sideband. This effect can be used to implement photonic RF signal mixing and conversion with gain, conversion from phase modulation to amplitude modulation, photonic RF frequency multiplication, optical and RF pulse generation and manipulation, and frequency-locking of lasers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.