System for bidirectional free-space laser communication of gigabit Ethernet telemetry data
US9438338B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 13, 2015 |
| Grant date | Sep 6, 2016 |
| Priority date | — |
| Expiry date | May 29, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/1129
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A free-space laser communication system for bidirectional transmission of telemetry data in Gigabit Ethernet (GBE) protocol using a dual atmospheric effect mitigation approach. This free-space bidirectional GBE laser communication system utilizes an Optical Combining Receiver Array and a Framer/Forward Error Correction/Interleaver (FFI) device to mitigate the combined effects of atmospheric turbulence and channel fading. Since the FFI device is designed for Synchronous Optical Network (SONET) protocol, an intelligent (or smart) media converter is used to convert GBE telemetry data to SONET frames, which enables the FFI device to perform an error correction algorithm and provide a seamless error-free GBE laser communication link for distance over a kilometer. This bidirectional laser communication system can be implemented with low-cost commercially available components.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.