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Wednesday, December 07, 2022

Free-Space Optics System Could Boost Space Comms

Free Space Optics

Free-Space Optics System Could Boost Space Comms

IEEE Spectrum. John Boyd.December 1, 2022

Researchers at Australia's International Center for Radio Astronomy Research (ICRAR) established a laser-guided free-space optical (FSO) link with the potential to enhance communications for space missions. The researchers maintained the FSO link despite stormy atmosphere between an optical ground terminal and a retroreflector on an airborne drone. ICRAR's Shane Walsh explained the framework supports "an uninterrupted 100-gigabits-per-second optical-data link. We do this by tracking the drone at angular rates up to 1.5 degrees a second—the equivalent of tracking a satellite in low Earth orbit [LEO]." Walsh said this clears a path for realizing terabit-per-second communications between LEO satellites and ground stations. ... ' 

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