Silicon-on-insulator integrated source of polarization-entangled photons

Laurent Olislager; Jassem Safioui; Stéphane Clemmen; Kien Phan Huy; Wim Bogaerts; Roel Baets; Philippe Emplit; Serge Massar

doi:10.1364/OL.38.001960

Silicon-on-insulator integrated source of polarization-entangled photons

Quantum Physics 2013-05-30 v2

Authors: Laurent Olislager , Jassem Safioui , Stéphane Clemmen , Kien Phan Huy , Wim Bogaerts , Roel Baets , Philippe Emplit , Serge Massar

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Abstract

We report the experimental generation of polarization-entangled photons at telecommunication wavelengths using spontaneous four-wave mixing in silicon-on-insulator wire waveguides. The key component is a 2D coupler that transforms path entanglement into polarization entanglement at the output of the device. Using quantum state tomography we find that the produced state has fidelity 88% with a pure non-maximally entangled state. The produced state violates the CHSH Bell inequality by S=2.37\pm0.19.

Keywords

polarization-entangled photons silicon-on-insulator spontaneous four-wave mixing 2D coupler quantum state tomography CHSH Bell inequality

Cite

@article{arxiv.1304.0642,
  title  = {Silicon-on-insulator integrated source of polarization-entangled photons},
  author = {Laurent Olislager and Jassem Safioui and Stéphane Clemmen and Kien Phan Huy and Wim Bogaerts and Roel Baets and Philippe Emplit and Serge Massar},
  journal= {arXiv preprint arXiv:1304.0642},
  year   = {2013}
}

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3 pages, 3 figures

Silicon-on-insulator integrated source of polarization-entangled photons

Abstract

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