@inproceedings{a9298c34c27141ce9ba088d24b9043f2,
title = "Demonstration of background-free, phase-preserving parametric up-conversion at the single-photon level",
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.",
keywords = "Band-pass filters, Frequency conversion, Nonlinear optics, Optical pumping, Optical waveguides, Optical wavelength conversion, Photonics",
author = "Cheng, \{Y. H.\} and Thomay, \{Tim O.\} and Solomon, \{Glenn S.\} and Migdall, \{Alan L.\} and Polyakov, \{Sergey V.\}",
note = "Publisher Copyright: {\textcopyright} 2015 OSA.; Conference on Lasers and Electro-Optics, CLEO 2015 ; Conference date: 10-05-2015 Through 15-05-2015",
year = "2015",
month = aug,
day = "10",
language = "English",
series = "Conference on Lasers and Electro-Optics Europe - Technical Digest",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
booktitle = "2015 Conference on Lasers and Electro-Optics, CLEO 2015",
address = "United States",
}