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author:

Zhou, Zhi-Yuan (Zhou, Zhi-Yuan.) [1] | Jiang, Yun-Kun (Jiang, Yun-Kun.) [2] | Ding, Dong-Sheng (Ding, Dong-Sheng.) [3] | Shi, Bao-Sen (Shi, Bao-Sen.) [4]

Indexed by:

EI

Abstract:

The first experimental preparation is reported of an ultra-broadband continuously-tunable highly polarization-entangled photon-pair source via spontaneous parametric down-conversion in a single type-II phase-matched bulk periodically-poled KTiOPO4 (PPKTP) crystal. A tuning band of more than 60 nm for the down-converted photons is achieved experimentally, which covers the C+L telecom bands. The photon pair generation rate is about 1.63 × 10 4 (s mW nm)-1. The calculated S parameter values of CHSH inequality between 2.60 ± 0.04 (minimum) and 2.72 ± 0.07 (maximum) over the whole tunable range clearly demonstrate high entanglement of the source. In combination with the dense wavelength-division multiplexing (DWDM) technique, our source could be used to enhance the transmission capacity of a communication channel in the field of quantum communication. © 2013 Taylor & Francis Group, LLC.

Keyword:

Dense wavelength division multiplexing Phase matching Photons Polarization Quantum communication Quantum entanglement Scattering parameters Titanium compounds Ultra-wideband (UWB)

Community:

  • [ 1 ] [Zhou, Zhi-Yuan]Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei 230026, China
  • [ 2 ] [Jiang, Yun-Kun]College of Physics and Information Engineering, Fuzhou University, Fuzhou 350002, China
  • [ 3 ] [Ding, Dong-Sheng]Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei 230026, China
  • [ 4 ] [Shi, Bao-Sen]Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei 230026, China

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Source :

Journal of Modern Optics

ISSN: 0950-0340

Year: 2013

Issue: 9

Volume: 60

Page: 720-725

1 . 1 6 6

JCR@2013

1 . 2 0 0

JCR@2023

JCR Journal Grade:3

CAS Journal Grade:4

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 9

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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