Free-space optical communication is an optical communication technology that uses light propagating in free space to wirelessly transmit data for telecommunications or computer networking over long di
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.
A photophone receiver and headset, one half of Bell and Tainter's optical telecommunication system of 1880
WW I German Blinkgerät
DARPA ORCA official concept art created c. 2008
Laser communication in space
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Laser communication in space is the use of free-space optical communication in outer space. Communication may be fully in space or in a ground-to-satellite or satellite-to-ground application. The main
Free-space optical communication
…Demonstrator 3 (PTD-3) satellite. Various satellite constellations that are intended to provide global broadband coverage, such as SpaceX Starlink, employ laser communication for inter-satellite links. This effectively creates a space-based optical mesh network between the satellites. In 2001, Twibright Labs released RONJA…
Depiction of the optical module of the LLCD
Rendering of the successful OPALS experiment, the invisible laser shown here as a visible beam
Mynaric optical communication terminal intended for satellite use