Nanomechanical single-photon routing

Camille Papon; Xiaoyan Zhou; Henri Thyrrestrup Nielsen; Zhe Liu; Søren Stobbe; Rüdiger Schott; Andreas D. Wieck; Arne Ludwig; Peter Lodahl; Leonardo Midolo

doi:10.1364/OPTICA.6.000524

Nanomechanical single-photon routing

Camille Papon, Xiaoyan Zhou, Henri Thyrrestrup Nielsen, Zhe Liu, Søren Stobbe, Rüdiger Schott, Andreas D. Wieck, Arne Ludwig, Peter Lodahl, Leonardo Midolo

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Abstract

The active routing of photons using rapid reconfigurable integrated circuits is a key functionality for quantum-in-formation processing. Typical waveguide-based optical switches rely on the modulation of the refractive index, producing a modest variation of the phase of the optical fields. Mechanical motion of nanophotonic structures, on the contrary, can be tailored to produce a much larger effect, without introducing loss or emitter decoherence and operating at a speed matching the quantum memory storage time of the on-chip quantum emitter. Here we demonstrate a compact and low-loss nano-opto-electromechanical single-photon router, based on two coupled waveguides whose distance is adjusted on demand by an external voltage. We show controllable two-port routing of single photons emitted from quantum dots embedded in the same chip. We report a maximum splitting ratio >23 dB, insertion loss of 0.67 dB, and sub-microsecond response time. The device is an essential building block for constructing advanced quantum photonic architectures on-chip, towards, e.g., coherent multi-photon sources, deterministic photon– photon quantum gates, quantum-repeater nodes, or scalable quantum networks.

Original language	English
Journal	Optica
Volume	6
Issue number	4
Pages (from-to)	542-530
ISSN	2334-2536
DOIs	https://doi.org/10.1364/OPTICA.6.000524
Publication status	Published - 29 Apr 2019

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title = "Nanomechanical single-photon routing",

abstract = "The active routing of photons using rapid reconfigurable integrated circuits is a key functionality for quantum-in-formation processing. Typical waveguide-based optical switches rely on the modulation of the refractive index, producing a modest variation of the phase of the optical fields. Mechanical motion of nanophotonic structures, on the contrary, can be tailored to produce a much larger effect, without introducing loss or emitter decoherence and operating at a speed matching the quantum memory storage time of the on-chip quantum emitter. Here we demonstrate a compact and low-loss nano-opto-electromechanical single-photon router, based on two coupled waveguides whose distance is adjusted on demand by an external voltage. We show controllable two-port routing of single photons emitted from quantum dots embedded in the same chip. We report a maximum splitting ratio >23 dB, insertion loss of 0.67 dB, and sub-microsecond response time. The device is an essential building block for constructing advanced quantum photonic architectures on-chip, towards, e.g., coherent multi-photon sources, deterministic photon– photon quantum gates, quantum-repeater nodes, or scalable quantum networks.",

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doi = "10.1364/OPTICA.6.000524",

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T1 - Nanomechanical single-photon routing

AU - Papon, Camille

AU - Zhou, Xiaoyan

AU - Nielsen, Henri Thyrrestrup

AU - Liu, Zhe

AU - Stobbe, Søren

AU - Schott, Rüdiger

AU - Wieck, Andreas D.

AU - Ludwig, Arne

AU - Lodahl, Peter

AU - Midolo, Leonardo

PY - 2019/4/29

Y1 - 2019/4/29

N2 - The active routing of photons using rapid reconfigurable integrated circuits is a key functionality for quantum-in-formation processing. Typical waveguide-based optical switches rely on the modulation of the refractive index, producing a modest variation of the phase of the optical fields. Mechanical motion of nanophotonic structures, on the contrary, can be tailored to produce a much larger effect, without introducing loss or emitter decoherence and operating at a speed matching the quantum memory storage time of the on-chip quantum emitter. Here we demonstrate a compact and low-loss nano-opto-electromechanical single-photon router, based on two coupled waveguides whose distance is adjusted on demand by an external voltage. We show controllable two-port routing of single photons emitted from quantum dots embedded in the same chip. We report a maximum splitting ratio >23 dB, insertion loss of 0.67 dB, and sub-microsecond response time. The device is an essential building block for constructing advanced quantum photonic architectures on-chip, towards, e.g., coherent multi-photon sources, deterministic photon– photon quantum gates, quantum-repeater nodes, or scalable quantum networks.

AB - The active routing of photons using rapid reconfigurable integrated circuits is a key functionality for quantum-in-formation processing. Typical waveguide-based optical switches rely on the modulation of the refractive index, producing a modest variation of the phase of the optical fields. Mechanical motion of nanophotonic structures, on the contrary, can be tailored to produce a much larger effect, without introducing loss or emitter decoherence and operating at a speed matching the quantum memory storage time of the on-chip quantum emitter. Here we demonstrate a compact and low-loss nano-opto-electromechanical single-photon router, based on two coupled waveguides whose distance is adjusted on demand by an external voltage. We show controllable two-port routing of single photons emitted from quantum dots embedded in the same chip. We report a maximum splitting ratio >23 dB, insertion loss of 0.67 dB, and sub-microsecond response time. The device is an essential building block for constructing advanced quantum photonic architectures on-chip, towards, e.g., coherent multi-photon sources, deterministic photon– photon quantum gates, quantum-repeater nodes, or scalable quantum networks.

U2 - 10.1364/OPTICA.6.000524

DO - 10.1364/OPTICA.6.000524

M3 - Journal article

SN - 2334-2536

VL - 6

SP - 542

EP - 530

JO - Optica

JF - Optica

IS - 4

ER -

Nanomechanical single-photon routing

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