Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

NTT technical review

Entanglement Generation Using Silicon Wire Waveguide

Hiroki Takesue, K. Harada, 康弘 都倉, Hiroshi Fukuda, Tai Tsuchizawa, Toshifumi Watanabe, Kôji Yamada, Sei-ichi Itabashi

Published Feb 1, 2010• 1 citation
Publisher

Abstract

Generating high-purity entangled photon pairs is an important step toward quantum information processing using photons.In this article, we describe the world's first ever experiment on generating entanglement using a spontaneous parametric process in a silicon wire waveguide.
DOI
10.53829/ntr201002sf6

Related papers

Entanglement generation using silicon wire waveguide

Hiroki Takesue, Hiroshi Fukuda, Tai Tsuchizawa +4 more

We report the first entanglement generation experiments using silicon waveguide. Using highly efficient spontaneous four-wave mixing in a 1.09 cm long silicon nanowire waveguide at room temperature, we successfully generated high-purity time-bin and polarization entangled photon pairs in the 1.5 μm band. We expect this entanglement source will solve the problems of previous telecom-band entanglement sources.

Optics and Spectroscopy•Feb 1, 2010•6 citations

Entanglement generation using silicon wire waveguide

Hiroki Takesue, 康弘 都倉, Hiroshi Fukuda +4 more

We report an entanglement generation experiment that utilizes a silicon waveguide. Using spontaneous four-wave mixing in a 1.09-cm-long silicon wire waveguide, we generated 1.5μm, high-purity time-bin entangled photons without temperature control and observed a two-photon interference fringe with >73% visibility.

arXiv:0711.2328•Applied Physics Letters•Nov 12, 2007•152 citations

Entanglement generation using silicon wire waveguide

Hiroki Takesue

Thisd talk describes an entangled photon-pair generation experiment to use a silicon wire waveguide. The results of quantum communication experiments using the silicon-based entanglement sources are also provided.

IEEE/LEOS Summer Topical Meetings•Jul 1, 2011•0 citations

Entangled Photon Pair Generation Using Silicon Wire Waveguides

Hiroki Takesue

Entangled photon pair generation is an important technology for realizing quantum information systems. Among various entangled photon pair sources, a source based on spontaneous four-wave mixing (SFWM) in a silicon wire waveguide (SWW) is now drawing attention. Thanks to the very large third-order nonlinearity in an SWW, we can realize highly efficient SFWM in a short ( ~ 1 cm) waveguide, which will possibly lead to an integrated entanglement source on a silicon chip. In this paper, we review recent progress on SWW-based entanglement sources. This study reviews the basic theory of SFWM, and then describes correlated and entangled photon generation experiments using SWWs and applications to quantum information experiments.

IEEE Journal of Selected Topics in Quantum Electronics•Apr 13, 2012•29 citations

Entanglement Generation Using Silicon Photonic Wire Waveguide

Hiroki Takesue, K. Harada, Hiroshi Fukuda +5 more

This paper reviews recent progress on telecom-band entangled photon-pair sources based on spontaneous four-wave mixing (SFWM) in a silicon photonic wire waveguide. Thanks to the large third order nonlinearity of nano-scale silicon waveguides, we can generate photon pairs efficiently. Moreover, the use of silicon waveguides enable us to avoid the noise photons caused by spontaneous Raman scattering, which has been a serious problem with entanglement sources based on SFWM in dispersion shifted fiber. We successfully demonstrated high-purity time-bin and polarization entanglement generation using 1-cm long silicon waveguides.

Journal of Nanoscience and Nanotechnology•Mar 1, 2010•1 citation

Nonlinear functions and quantum entanglement generation using silicon photonic wire waveguides.

Koji Yamada, Tai Tsuchizawa, T. Watanabe +7 more

Nonlinear optical phenomena are remarkably enhanced in silicon photonic wire waveguides with ultra-small cores. Efficient nonlinear functions, such as a wavelength conversion and high-purity entangled photon pair generation, are demonstrated.

European Conference on Optical Communication•Oct 16, 2009•0 citations
Entangled photon pair generation is an important technology for realizing quantum information systems. Among various entangled photon pair sources, a source based on spontaneous four-wave mixing (SFWM) in a silicon wire waveguide (SWW) is now drawing attention. Thanks to the very large third-order nonlinearity in an SWW, we can realize highly efficient SFWM in a short ( ~ 1 cm) waveguide, which will possibly lead to an integrated entanglement source on a silicon chip. In this paper, we review recent progress on SWW-based entanglement sources. This study reviews the basic theory of SFWM, and then describes correlated and entangled photon generation experiments using SWWs and applications to quantum information experiments.
This paper reviews recent progress on telecom-band entangled photon-pair sources based on spontaneous four-wave mixing (SFWM) in a silicon photonic wire waveguide. Thanks to the large third order nonlinearity of nano-scale silicon waveguides, we can generate photon pairs efficiently. Moreover, the use of silicon waveguides enable us to avoid the noise photons caused by spontaneous Raman scattering, which has been a serious problem with entanglement sources based on SFWM in dispersion shifted fiber. We successfully demonstrated high-purity time-bin and polarization entanglement generation using 1-cm long silicon waveguides.