According to foreign media reports, the French Defense Innovation Agency and a French commercial company have jointly completed high-speed optical communication experiments between low orbit satellites and ground stations, and plan to provide this service to the public. The French Ministry of Defense stated that the project will help enhance France's space capabilities. In recent years, satellite ground laser communication has received increasing attention. Laser communication can transmit large amounts of data in a short period of time, while the communication lines are protected from physical attacks. This high-speed optical communication experiment uses a ground station from a commercial company, which is equipped with a large telescope. The technical difficulty lies in the processing method of the laser entering the telescope. The laser communication terminal on the satellite is manufactured by a commercial company and is a ready-made product. According to reports, the project team is able to establish a stable laser communication link within minutes, which can not only track satellites in orbit from ground stations, but also receive data sent by satellites. The success of the project has made it possible to use laser communication on land-based, maritime, or space-based platforms. This successful test also lays the foundation for the integration of the system with French military satellites in the future. (New Society)