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Optical Nanomodulator Produces Truly Digital Signals

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ZURICH, Feb. 9, 2016 — As data rates and volumes continue to rise, an optical modulator that operates at the individual-atom level could both reduce the size of and increase the efficiency of communication networks. The modulator is based on the voltage-induced displacement of one or more silver atoms in the narrow gap between a silver and a platinum plate. Courtesy of Alexandros Emboras/ETH Zurich. Within these networks, components called modulators convert electrical signals into optical signals; effectively, these are fast electrical switches that turn a laser signal on or off at the frequency of the incoming...Read full article

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