General Atomics Aeronautical Systems, Inc. (GA-ASI) has ground tested its Airborne Laser Communication System (ALCoS) by establishing a link with a satellite in Geo-synchronous Earth Orbit (GEO). GA-ASI conducted the test with Tesat-Spacecom (TESAT), space-based laser communication (lasercom) company, using their GEO Laser Communication Terminal (LCT), the LCT 135.