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Infrared Links Could Replace Wires in Data Centers

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A team of engineers is proposing to eliminate most of the wires in data centers and instead use infrared free-space optics for communications. An infrared laser beam is going into the receiver of the signaling system. Courtesy of Patrick Mansell, Penn State. The Free-space optical Inter-Rack nEtwork with high FLexibilitY — known as Firefly — architecture is a joint project of Penn State, Stony Brook University and Carnegie Mellon University. Firefly uses infrared lasers and receivers mounted on top of data center racks to transmit information. The laser modules are...Read full article

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    Published: February 2017
    Glossary
    free-space optics
    Free-space optics (FSO), also known as optical wireless communication or optical wireless networking, refers to the transmission of data using modulated beams of light through free space (air or a vacuum) rather than using physical cables or fiber optics. FSO systems leverage the principles of optical communication, similar to fiber optic communication, but they transmit signals through the atmosphere over relatively short distances. Key features and aspects of free-space optics include: ...
    lensesmirrorsFree-space optical Inter-Rack nEtwork with high FLexibilitYfireflyPenn StateStony Brook UniversityCarnegie Mellon UniversityMohsen KavehradLasersfiber opticsOpticsNational Science Foundationdata centersfree-space opticsTech Pulse

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