Optical wireless communications is a form of optical communication in which unguided light is used "in the air", without an optical fiber. Visible, infrared, or ultraviolet light is used to carry a wi
Illustration of the Laser Communications Relay Demonstration (LCRD) relaying data from ILLUMA-T on the International Space Station to a ground station on Earth.
Wireless
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Wireless communication is the transfer of information between two or more points without the use of an electrical conductor, optical fiber or other continuous guided medium for the transfer. The most
Optical wireless communications
…unguided light is used "in the air" (or in outer space), without an optical fiber. Visible, infrared (IR), or ultraviolet (UV) light is used to carry a wireless signal. It is generally used in short-range communication; extensions exist for long-range and ultra-long range. OWC systems operating in the visible…
A handheld on-board communication station of the maritime mobile service
Bell and Tainter's photophone, of 1880
Marconi transmitting the first radio signal across the Atlantic
Power MOSFETs, which are used in RF power amplifiers to boost radio frequency (RF) signals in long-distance wireless networks