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Optimal Generation of Pulsed Entangled Photon Pairs

Juan F. Hodelin·George Khoury·Dirk Bouwmeester
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Abstract

We experimentally investigate a double-pass parametric down-conversion scheme for producing pulsed, polarization-entangled photon pairs with high visibility. The amplitudes for creating photon pairs on each pass interfere to compensate for distinguishing characteristics that normally degrade two-photon visibility. The result is a high-flux source of polarization-entangled photon pulses that does not require spectral filtering. We observe quantum interference visibility of over 95% without the use of spectral filters for 200 femtosecond pulses, and up to 98.1% with 5 nm bandwidth filters.

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Juan F. Hodelin, George Khoury, Dirk Bouwmeester. 2006-04-08. Optimal Generation of Pulsed Entangled Photon Pairs. https://doi.org/10.1103/physreva.74.013802

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