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Broadband Light Amplifier on a Chip Created

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ITHACA, N.Y., July 6, 2006 -- Researchers at the Cornell NanoScale Facility have created a broadband light amplifier on a silicon chip, in what they call a major breakthrough in the quest to create photonic microchips. In such microchips, beams of light traveling through microscopic waveguides will replace electric currents traveling through microscopic wires. The amplifier uses a phenomenon known as four-wave mixing, in which a signal to be amplified is "pumped" by another light source inside a very narrow waveguide. The waveguide is a channel only 300 x 550 nanometers wide (nm = a billionth of a meter, about the...Read full article

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    Published: July 2006
    broadband light amplifierCommunicationsCornell NanoScale Faciliytindustrialmicroscopic waveguidesNews & Featuresphotonic microchipssilicon chip

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