Bi-directional Free Space Laser Communication of Gigabit Ethernet Telemetry Data Using Dual Atmospheric Effect Mitigation Approach

摘要

This paper presents experimental demonstration of optical components applicable in free space laser communication systems for bi-directional transmission of Gigabit Ethernet (GBE) telemetry data and control messages using a dual atmospheric effect mitigation approach. The objective is to address the challenges for optical transmission of telemetry data. (1) Turbulence effects which cause optical beam scintillation, wander and breakup, all of which cause signal degradation at the receiver. (2) An optical signal in free space has a fading effect which is caused by communications terminal equipment's in-ability to maintain perfect pointing along a line of sight due to vibrations/motions of the mobile platform.