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Opt Lett. 2008 Aug 15;33(16):1825-7.

Broadband frequency mode entanglement in waveguided parametric downconversion.

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1
Max Planck Research Group, Erlangen, Germany. aeckstein@optik.uni-erlangen.de

Abstract

We report the observation of beatings of the coincidence event rate in a Hong-Ou-Mandel interference (HOMI) between signal and idler photons from a parametric downconversion (PDC) process inside a multimode KTP waveguide. As an explanation we introduce biphotonic states entangled in their broadband frequency modes generated by waveguide mode triples and propose a suitable entanglement detection scheme.

PMID:
18709100
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