View source for Free-space optical communication

'''Free-space optical communication''' ('''FSO''') is an optical communication technology that uses [[light]] propagating in free space to [[Wireless|wirelessly]] transmit [[data]] for [[telecommunications]] or [[Computer network|computer networking]].

"Free space" means air, outer space, vacuum, or something similar.

The technology is useful where the physical connections are impractical due to high costs or other considerations.

== Solid media ==

By contrast, technologies such as optical fiber cable and optical transmission lines use solid media. 

== See also ==

* [[Infrared Data Association]]

== External links == 

* [https://en.wikipedia.org/wiki/Free-space_optical_communication Free-space optical communication] @ Wikipedia