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Free Space Optics for Laser Communication Through the Air
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Citations
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References
2002
Year
Photophone PatentOptical MaterialsFree Space OpticsEngineeringOptical Transmission SystemSpace OpticOptical Wireless CommunicationStatistical OpticsFiber OpticsFree-space Optical CommunicationOptical PropertiesAlexander Graham BellOptical CommunicationLaser CommunicationsFree-space Optical NetworkPhotonicsOptical TransmissionSpace CommunicationsClassical OpticsFreeform OpticIntensity ModulationOptoelectronics
Free space optics (FSO) communication involves the use of modulated optical or laser beams to send telecommunication information through the atmosphere. The concept of FSO light communication is not new: in his photophone patent of 1880, Alexander Graham Bell demonstrated use of an intensity-modulated optical beam (sunlight) to transmit telephone signals 200 m through the air to a distant receiver.