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

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.

3 pages, 3 figures

References in corpus (4)

• Bell violation with entangled photons, free of the fair-sampling assumption
• Photonic crystal fibre source of photon pairs for quantum information processing
• Entanglement generation using silicon wire waveguide
• A monolithically integrated polarization entangled photon pair source on a silicon chip

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