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Authors: L. Olislager, J. Safioui, S. Clemmen, K. P. Huy, W. Bogaerts, R. Baets, P. EMplit, S. Massar
Title: Silicon-on-insulator integrated source of polarization-entangled photons
Format: International Journal
Publication date: 6/2013
Journal/Conference/Book: Optics Letters
Volume(Issue): 38(11) p.1960-1962
Internal Reference: [N-1469]
Download: Download this Publication (370KB) (370KB)

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±0.19.

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