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arxiv 2207.10084 v1 pith:R5L5PQIV submitted 2022-07-20 physics.optics cond-mat.mes-hallcond-mat.mtrl-scicond-mat.otherphysics.app-ph

Low-Power consumption Franz-Keldysh effect plasmonic modulator

classification physics.optics cond-mat.mes-hallcond-mat.mtrl-scicond-mat.otherphysics.app-ph
keywords modulatorconsumptioneffectenergyfranz-keldyshplasmonicbiascharacteristics
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In this paper we report on a low energy consumption CMOS-compatible plasmonic modulator based on Franz-Keldysh effect in germanium on silicon. We performed integrated electro-optical simulations in order to optimize the main characteristics of the modulator. A 3.3 $dB$ extinction ratio for a 30 ${\mu}m$ long modulator is demonstrated under 3 $V$ bias voltage at an operation wavelength of 1647 $nm$. The estimated energy consumption is as low as 20 $fJ/bit$.

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