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optical ground station for laser communication with satellites

according to the u.s. c4isrnet website on september 13, in an experiment sponsored by the french defense innovation agency, a french technology company used lasers to communicate between low-orbit nanosatellites and commercial ground stations. in the experiment, a satellite carrying a laser payload from the french unseenlabs satellite company established a stable connection with the optical ground station of cailabs for several minutes using lasers. the french ministry of defense said that this test laid the foundation for integrating lasers into military satellites.

cailabs ceo mori zuer said that the point-to-point nature of lasers makes them safer and less susceptible to interference than radio transmissions, and that laser links can transmit very large files in a few minutes. this type of laser is not easy to detect and intercept, and if installed on vehicles and ships, it can reduce the probability of the platform being discovered.

the u.s. military said that this test means that space-based laser communications can be used on mobile, land-based, sea-based and airborne platforms in the future. morizur said that although this test is not the first time for air-to-ground laser communications, it is the first time to use a commercial optical ground station. he also pointed out that the laser system used in the test can pass through some clouds, but cannot penetrate thick clouds.