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Long-range optical wireless communication

"Free-space optical communication" redirects here. For short- to medium-range technicques, see Optical wireless communications.

An eight-beam free-space–optics laser link, rated for 1 Gbit/s. The receptor is the large lens in the middle, the transmitters the smaller ones. At the top right corner is a monocular for assisting the alignment of the two heads.

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. This contrasts with using solids such as optical fiber cable. The technology is useful where the physical connections are impractical due to high costs or other considerations.


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الاتصالات البصرية في الفضاء الحر Arabic Comunicació òptica per l'espai lliure Catalan Optischer Richtfunk German Comunicación óptica por el espacio libre Spanish Optinen tiedonsiirto vapaassa tilassa Finnish Communications optiques en espace libre French Komunikasi optis ruang bebas ID Comunicazioni ottiche in spazio libero Italian Free Space Optics Polish Comunicații optice prin spațiul liber Romanian

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