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Entangled photons from on-chip slow light.

ABSTRACT: We report the first entanglement generation experiment using an on-chip slow light device. With highly efficient spontaneous four-wave mixing enhanced by the slow light effect in a coupled resonator optical waveguide based on a silicon photonic crystal, we generated 1.5-?m-band high-dimensional time-bin entangled photon pairs. We undertook two-photon interference experiments and observed the coincidence fringes with visibilities >74%. The present result enables us to realize an on-chip entanglement source with a very small footprint, which is an essential function for quantum information processing based on integrated quantum photonics.

SUBMITTER: Takesue H

PROVIDER: S-EPMC3904141 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature

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Entangled photons from on-chip slow light.

Takesue Hiroki H Matsuda Nobuyuki N Kuramochi Eiichi E Notomi Masaya M

Scientific reports 20140128

We report the first entanglement generation experiment using an on-chip slow light device. With highly efficient spontaneous four-wave mixing enhanced by the slow light effect in a coupled resonator optical waveguide based on a silicon photonic crystal, we generated 1.5-μm-band high-dimensional time-bin entangled photon pairs. We undertook two-photon interference experiments and observed the coincidence fringes with visibilities >74%. The present result enables us to realize an on-chip entanglem ...[more]

PMID: 24468821

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