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Asia Communications and Photonics Conference

Fiber-based sources of quantum light for quantum information processing

Xiaoying Li, Liang Cui, Xueshi Guo, Z. Y. Ou, Michael Vasilyev

Published Jan 1, 2021• 4 citations
Publisher

Abstract

Using the parametric process of four-wave mixing in silica core fibers, we demonstrate the generation of various kinds of quantum states, including the pure state single photons and spatially entangled photon pairs in telecom band.
DOI
10.1364/acpc.2021.m4a.1

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Summary form only given. Correlated and entangled single photon states have made possible many fundamental studies in quantum optics such as the Bell-type test of hidden variables and non-locality, explorations of quantum interference properties, and investigations of quantum information processing and quantum communications technologies such as quantum cryptography, quantum computing, and quantum teleportation. These correlated single photon states are traditionally generated via a spontaneous parametric down-conversion process using a /spl chi//sup (2)/ material. We propose and analyze the generation of entangled single photons using /spl chi//sup (2)/ parametric processes in optical fibers. Such processes provide a simple and inexpensive correlated photon source readily compatible with commercial communications technologies. It further affords high efficiency for coupling into single mode fibers for applications in quantum cryptography.