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Conferences > CLEO_QELS > 2015 > FM3A > FM3A.1

Demonstration of background-free, phase-preserving parametric up-conversion at the single-photon level

Y.-H. Cheng, Tim O. Thomay, Glenn S. Solomon, Alan L. Migdall, and Sergey V. Polyakov

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Abstract

We demonstrate single-photon-level phase preservation in an up-converting interferometer. The up-conversion process is background-free to within experimental uncertainty, allowing high fringe contrast even at low photon levels. This enables faithful up-conversion of entangled photon pairs.

© 2015 Optical Society of America

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