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Entangled Photon Pair Generation Using Silicon Wire Waveguides

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1 Author(s)
Takesue, H. ; NTT Basic Res. Labs., NTT Corp., Atsugi, Japan

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.

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Selected Topics in Quantum Electronics, IEEE Journal of  (Volume:18 ,  Issue: 6 )