Progress towards interaction-free all-optical devices

Dmitry V. Strekalov; Abijith S. Kowligy; Yu Ping Huang; Prem Kumar

doi:10.1103/PhysRevA.89.063820

Progress towards interaction-free all-optical devices

Dmitry V. Strekalov, Abijith S. Kowligy, Yu Ping Huang, Prem Kumar

Electrical and Computer Engineering

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

We present an all-optical control device in which coupling a weak control optical field into a high-Q lithium niobate whispering-gallery-mode microcavity decouples it from a signal field due to nonlinear optical interactions. This results in switching and modulation of the signal with low-power control pulses. In the quantum limit, the underlying nonlinear-optical process corresponds to the quantum Zeno blockade. Its "interaction-free" nature effectively alleviates loss and decoherence for the signal waves. This work therefore presents experimental progress towards acquiring large phase shifts with few photons or even at the single-photon level.

Original language	English (US)
Article number	063820
Journal	Physical Review A - Atomic, Molecular, and Optical Physics
Volume	89
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevA.89.063820
State	Published - Jun 23 2014

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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10.1103/PhysRevA.89.063820

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AB - We present an all-optical control device in which coupling a weak control optical field into a high-Q lithium niobate whispering-gallery-mode microcavity decouples it from a signal field due to nonlinear optical interactions. This results in switching and modulation of the signal with low-power control pulses. In the quantum limit, the underlying nonlinear-optical process corresponds to the quantum Zeno blockade. Its "interaction-free" nature effectively alleviates loss and decoherence for the signal waves. This work therefore presents experimental progress towards acquiring large phase shifts with few photons or even at the single-photon level.

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Progress towards interaction-free all-optical devices

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ASJC Scopus subject areas

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