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Microring Modulator Points to Greater Integration of Electronics and Photonics

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Device combines principles of a microring resonator and Mach-Zehnder interferometer.

Breck Hitz

Although the Mach-Zehnder modulator in the previous report boasts a tiny footprint and avoids the necessity of delicately balancing environmental parameters to maintain a resonance, it requires a hefty, multivolt drive signal that cannot easily be supplied from CMOS circuitry monolithically integrated with the modulator itself. Because integrated drive circuitry is critical to the development of on-chip optical interconnects, William M.J. Green and his colleagues at the IBM Thomas J. Watson Research Center in Yorktown Heights, N.Y. — the same group that demonstrated the Mach-Zehnder modulator...Read full article

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    Published: February 2008
    Mach-Zehnder modulatormultivolt drive signalparametersResearch & Technology

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