Effect of loss on photon-pair generation in nonlinear waveguide arrays

Diana A. Antonosyan; Alexander S. Solntsev; Andrey A. Sukhorukov

doi:10.1103/PhysRevA.90.043845

Effect of loss on photon-pair generation in nonlinear waveguide arrays

Diana A. Antonosyan^*
, Alexander S. Solntsev
, Andrey A. Sukhorukov

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

31 Citations (Scopus)

Abstract

We describe theoretically the process of spontaneous parametric down-conversion in quadratic nonlinear waveguide arrays in the presence of linear loss. We derive a set of discrete Schrödinger-type equations for the biphoton wave function and the wave function of one photon when the other photon in a pair is lost. We demonstrate effects arising from loss-affected interference between the generated photon pairs and show that nonlinear waveguide arrays can serve as a robust loss-tolerant integrated platform for the generation of entangled photon states with nonclassical spatial correlations.

Original language	English
Article number	043845
Journal	Physical Review A - Atomic, Molecular, and Optical Physics
Volume	90
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevA.90.043845
Publication status	Published - 21 Oct 2014

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10.1103/PhysRevA.90.043845

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abstract = "We describe theoretically the process of spontaneous parametric down-conversion in quadratic nonlinear waveguide arrays in the presence of linear loss. We derive a set of discrete Schr{\"o}dinger-type equations for the biphoton wave function and the wave function of one photon when the other photon in a pair is lost. We demonstrate effects arising from loss-affected interference between the generated photon pairs and show that nonlinear waveguide arrays can serve as a robust loss-tolerant integrated platform for the generation of entangled photon states with nonclassical spatial correlations.",

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AB - We describe theoretically the process of spontaneous parametric down-conversion in quadratic nonlinear waveguide arrays in the presence of linear loss. We derive a set of discrete Schrödinger-type equations for the biphoton wave function and the wave function of one photon when the other photon in a pair is lost. We demonstrate effects arising from loss-affected interference between the generated photon pairs and show that nonlinear waveguide arrays can serve as a robust loss-tolerant integrated platform for the generation of entangled photon states with nonclassical spatial correlations.

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Effect of loss on photon-pair generation in nonlinear waveguide arrays

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