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Silicon Photonic Modulator Transmits Data at 30 Gb/s

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Ansheng Liu, Intel Corp., Santa Clara, Calif.

High-speed optical modulators are a key component for optical communications and for future optical interconnect applications. Today’s commercially available optical modulators at 10 Gb/s are based on electro-optic materials such as lithium niobate and III-V compound semiconductors. These devices have demonstrated modulation capability as high as 40 Gb/s. To achieve similar performance in silicon is challenging because crystalline silicon exhibits no linear electro-optic (Pockels) effect. Engineers are forced to rely on the free-carrier plasma dispersion effect, in which the refractive index...Read full article

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    Published: April 2007
    Glossary
    optical communications
    The transmission and reception of information by optical devices and sensors.
    photonics
    The technology of generating and harnessing light and other forms of radiant energy whose quantum unit is the photon. The science includes light emission, transmission, deflection, amplification and detection by optical components and instruments, lasers and other light sources, fiber optics, electro-optical instrumentation, related hardware and electronics, and sophisticated systems. The range of applications of photonics extends from energy generation to detection to communications and...
    CommunicationsFeaturesHigh-speed optical modulatorsoptical communicationsoptical interconnect applicationsphotonics

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