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

被引：27
作者：
Antonosyan, Diana A. [1 ]
Solntsev, Alexander S. [1 ]
Sukhorukov, Andrey A. [1 ]
机构：
[1] Australian Natl Univ, Res Sch Phys & Engn, Nonlinear Phys Ctr, Canberra, ACT 2601, Australia
来源：
PHYSICAL REVIEW A | 2014年 / 90卷 / 04期
基金：
澳大利亚研究理事会;
关键词：
LEAKY MODES; QUANTUM; ENTANGLEMENT; STATE;
D O I：
10.1103/PhysRevA.90.043845
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
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 Schrodinger-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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页数：10
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