Europe's 2.6 Gbps laser link outpaces China's recent high-orbit trial

The European Space Agency (ESA) recently demonstrated a groundbreaking laser communication link between an aircraft and a geostationary satellite, achieving a data transfer speed of 2.6 gigabits per second over a distance of 36,000 km. This Airbus-built terminal maintained the connection without any dropped packets, showcasing the potential to eliminate digital "dead zones" by providing high-speed internet to remote and mobile users such as long-haul flights, ships, and vehicles in isolated areas. The ESA emphasized the technical challenges involved, including compensating for platform movement, vibrations, and atmospheric disturbances, highlighting the precision required for such long-distance laser links. Shortly after, China’s Institute of Optoelectronics reported its own successful laser communication trial, maintaining a 1 Gbps link over 40,000 km for three hours using a 1.8-meter ground station equipped with adaptive optics to correct atmospheric distortion. While slower than ESA’s link, the Chinese development focused on turning satellites into intelligent processing