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Satellite laser ranging (SLR) is a method to measure the distance to satellites in a geocentric orbit. It consists of an astronomical observatory equipped with a laser that sends ultrashort pulses of light. The pulses hit the satellite and bounce back to be caught by the station, which measure the round trip time with the speed of light formula ...
Long-range optical wireless communication or free-space optical communication (FSO) is an optical communication technology that uses light propagating in free space to wirelessly transmit data for telecommunications or computer networking over long distances. "Free space" means air, outer space, vacuum, or something similar.
Starlink is a satellite internet constellation operated by Starlink Services, LLC, an international telecommunications provider that is a wholly owned subsidiary of American aerospace company SpaceX, [5] providing coverage to over 100 countries and territories.
WASHINGTON (Reuters) -SpaceX has started selling satellite lasers, which are used for speedy in-space communications, to other satellite firms, company President Gwynne Shotwell said at a ...
Assuming available laser technology, and considering the divergence of the interferometric signals, the range for satellite-to-satellite communications has been estimated to be approximately 2,000 km (1,200 mi). [83] These estimates are applicable to an array of satellites orbiting the Earth.
VLC can be possibly used in a wide range of applications including wireless local area networks, wireless personal area networks and vehicular networks, among others. [1] On the other hand, terrestrial point-to-point OWC systems, also known as the free space optical (FSO) systems, [ 2 ] operate at the near IR frequencies (750–1600 nm).
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