Reporters learned from the Aerospace Information Innovation Research Institute of the Chinese Academy of Sciences on the 30th that the operational application experiment of ultra 100 G satellite ground laser communication has been successfully carried out recently, with the communication rate reaching 120 gigabits per second (Gbps). The experimental results show that the communication link is stable and the downstream data quality is excellent. This is another breakthrough achieved by the project team after 10Gbps in 2023 and 60Gbps in 2025, marking a new level of business application capability for satellite ground laser communication in China. If we compare satellite ground laser communication to building a bridge over a turbulent river, 10Gbps transmission is equivalent to laying a single lane bridge with a relatively simple structure; And 120Gbps transmission is equivalent to building a multi lane high-speed bridge, which not only requires fast installation speed to achieve fast connection, but also ensures extremely high traffic efficiency in parallel multi lane operation, and its engineering implementation difficulty increases exponentially. ”Li Yalin, the team's technical leader and senior engineer at the Aerospace Academy, introduced that satellite ground laser communication has become one of the optimal solutions for achieving high-speed transmission of massive data between satellite and ground. This experiment was conducted using the 500mm aperture satellite ground laser communication system independently developed by the Aerospace Academy Ta County Laser Ground Station and the AIRSAT-02 satellite. The satellite was developed by Zhongke Satellite Technology Group Co., Ltd., and Beijing Rongwei Technology Co., Ltd. was responsible for the design and development of the satellite ground laser communication terminal. Without any changes to the satellite hardware, by reconstructing the in orbit software and fully tapping into the hardware potential of the laser communication payload, the capacity of the satellite laser communication payload is increased from 60Gbps to 120Gbps. This not only sets a new record for the transmission rate of domestic satellite ground laser communication, but also solves the problem of difficulty in quickly establishing, maintaining stable and efficient transmission of ultra high speed satellite ground laser links for a long time. During the experiment, a second level capture chain was successfully established between the satellite and the ground, with a success rate of over 93%. The maximum continuous communication time was 108 seconds, and the amount of data obtained reached 12.656TB. High quality remote sensing images were successfully processed. (New Society)