Modulated Light ("Lightbeam") communications

Long-distance atmospheric optical communications

What this page is about:

This page deals with long-distance atmospheric (through-the-air) optical ("lightbeam") communications of various types using coherent and noncoherent light sources, methods of mitigating atmospheric effects on such communications, as well as various technologies involved in transmitting and receiving such communications.  The majority of the content on these pages is produced by self-funded hobbyists that have taken on the challenge of furthering the state of the art in this somewhat arcane field.

Updated 20130506
Keywords:  Lightbeam communications, light beam, lightbeam, laser beam, modulated light, optical communications, through-the-air optical communications, FSO communications, Free-Space Optical communications, lightbeam communicator, LED communications, laser communications, LED, laser, light-emitting diode, lens, fresnel, fresnel lens, photodiode, photomultiplier, PMT, phototransistor, laser tube, laser diode, high power LED, luxeon, cree, phlatlight, lumileds, modulator, detector
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