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Observation of Low-Contrast All-Optical Switching in Si3N4 Microdisks Based on the Zeno Effect.

Peter T. Rakich

Published Aug 17, 2016• 0 citations
OpenAlex

Abstract

Low-contrast all-optical Zeno switching has been demonstrated in a Silicon Nitride microdisk resonator surrounded by hot Rubidium vapor.The device is based on the suppression of cavity power buildup due to non-degenerate two-photon absorption.

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We present theoretical results of a low-loss all-optical switch based on electromagnetically induced transparency and the quantum Zeno effect in a microdisk resonator. We show that a control beam can modify the atomic absorption of the evanescent field which suppresses the cavity field buildup and alters the path of a weak signal beam. We predict more than 35 dB of switching contrast with less than 0.1 dB loss using just 2 μW of control-beam power for signal beams with less than single photon intensities inside the cavity.