Optical amplifiers in a free space laser communication system
US7761009B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Aug 31, 2006 |
| Grant date | Jul 20, 2010 |
| Priority date | — |
| Expiry date | Aug 31, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/112
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Disclosed is a novel free space optical communication system comprising an optical amplifier configured to amplify an optical signal received from a fiber optic cable, a transmitter coupled to the optical amplifier and configured to transmit the amplified optical signal across a free space medium. The system also includes a receiver configured to receive the attenuated optical signal and a second optical amplifier coupled to the receiver configured to amplify the attenuated optical signal before transmitting the optical signal on to a fiber optic cable. The optical amplifier is preferably a Raman optical amplifier, but may also be any other optical amplifier, or combination of optical amplifiers, known in the art.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.