Device for generating polarization-entangled photons
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United States of America Patent
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Aug 14, 2012
Grant Date -
Apr 23, 2009
app pub date -
Oct 16, 2008
filing date -
Oct 17, 2007
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Expired
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Abstract
A device for generating polarization-entangled photons by means of parametric down-conversion, comprising a waveguide structure formed in a substrate of an optically non-linear material with periodically poled regions, wherein, when in operation, pump photons can be supplied from a pump laser to the waveguide structure, and wherein a separating means for separating the entangled photons for the separate further conduction of signal photons and idler photons, respectively, is arranged to follow the waveguide structure.
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