Actively switchable nondegenerate polarization-entangled photon-pair distribution in dense wave-division multiplexing - Details

author：

Zhou, Z.-Y. (Zhou, Z.-Y..) ^[1] | Jiang, Y.-K. (Jiang, Y.-K..) ^[2] | Ding, D.-S. (Ding, D.-S..) ^[3] | Shi, B.-S. (Shi, B.-S..) ^[4] | Guo, G.-C. (Guo, G.-C..) ^[5]

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Abstract：

We　have　demonstrated　experimentally　a　nondegenerate　polarization-entangled　photon-pair　distribution　in　a　commercial　telecom　dense　wave-division　multiplexing　device　(DWDM)　with　eight　channels.　A　promising　point　of　this　experiment　is　that　an　entangled　photon　pair　is　obtained　via　spontaneous　parametric　down　conversion　in　a　single　type-II　periodically　poled　KTiOPO　4　crystal　without　postselection.　Another　promising　advantage　is　that　we　can　actively　switch　the　distribution　of　the　photon　pair　between　different　channel　pairs　in　DWDM　at　will.　There　is　no　crosstalk　between　different　channel　pairs　because　of　a　limited　emission　bandwidth　of　the　source.　Maximum　raw　visibility　of　97.88%±0.86%　obtained　in　a　Bell-type　interference　experiment　and　a　Clauser-Horne-Shimony-Holt　(CHSH)　inequality　S　parameter　of　2.63±0.08　calculated　prove　high　entanglement　of　our　source.　Our　work　is　helpful　for　building　quantum　communication　networks.　©　2013　American　Physical　Society.

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[ 1 ] [Zhou, Z.-Y.]Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei 230026, China
[ 2 ] [Jiang, Y.-K.]College of Physics and Information Engineering, Fuzhou University, Fuzhou, 350002, China
[ 3 ] [Ding, D.-S.]Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei 230026, China
[ 4 ] [Shi, B.-S.]Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei 230026, China
[ 5 ] [Guo, G.-C.]Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei 230026, China

Reprint 's Address：

[Zhou, Z.-Y.]Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei 230026, China

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Source ：

Physical Review A - Atomic, Molecular, and Optical Physics

ISSN： 1050-2947

Year： 2013

Issue： 4

Volume： 87

2 . 9 9 1

JCR@2013

2 . 8 0 8

JCR@2014

JCR Journal Grade：1

CAS Journal Grade：2

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WoS CC Cited Count：

SCOPUS Cited Count： 13

ESI Highly Cited Papers on the List： 0 Unfold All

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30 Days PV： 0

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