Polarization-entangled photon-pair source using beam displacers and thin crystals

被引：0
|
作者：
Hong, Minjae [1 ,2 ,3 ]
Gomez, Rodrigo [1 ,2 ]
Gili, Valerio Flavio [1 ]
Fuenzalida, Jorge [4 ,5 ]
Graefe, Markus [1 ,5 ]
机构：
[1] Fraunhofer Inst Appl Opt & Precis Engn IOF, Albert Einstein Str 7, D-07745 Jena, Germany
[2] Friedrich Schiller Univ Jena, Abbe Ctr Photon, Albert Einstein Str 6, D-07745 Jena, Germany
[3] Max Planck Inst Sci Light, Staudtstr 2, D-91058 Erlangen, Germany
[4] Friedrich Alexander Univ, Schlolss Pl 4, D-91058 Erlangen, Germany
[5] Tech Univ Darmstadt, Inst Appl Phys, Schlossgartenstr 7, D-64289 Darmstadt, Germany
来源：
OPTICS LETTERS | 2024年 / 49卷 / 19期
基金：
欧盟地平线“2020”;
关键词：
D O I：
10.1364/OL.536820
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We present an experimental implementation of a polarization-entangled photon-pair source based on beam displacers. The down-converted photons are emitted via spontaneous parametric downconversion in a non-degenerate and type-0 process. We obtain a state fidelity of F = 0.975 +/- 0.004 and violate a Clauser-Horne-Shimony-Holt (CHSH) inequality with S = 2.75 +/- 0.01. Our source also uses thin crystals for applications in quantum imaging, taking advantage of the large number of spatial modes. We estimate that our source could produce 550 +/- 12 spatial modes. (c) 2024 Optica Publishing Group. All rights, including for text and data mining (TDM), Artificial Intelligence (AI) training, and similar technologies, are reserved.
引用
收藏
页码：5467 / 5470
页数：4
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