Beamlike high-brightness source of polarization-entangled photon pairs

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

30 Scopus Citations
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Author(s)

  • Xiao-Ling Niu
  • Yun-Feng Huang
  • Guo-Yong Xiang
  • Guang-Can Guo
  • Z. Y. Ou

Detail(s)

Original languageEnglish
Pages (from-to)968-970
Journal / PublicationOptics Letters
Volume33
Issue number9
Publication statusPublished - 1 May 2008
Externally publishedYes

Abstract

We report on an ultrabright beamlike source of polarization-entangled photon pairs that is suitable for the task of multiphoton quantum information processing. The photon pairs are generated from a beamlike type-II parametric downconversion process in two adjacently located but 180° rotated β-barium borate crystals. Approximately 30,000 s-1 entangled photon pairs are recorded experimentally with only 100 mW pump power. The fidelity of the generated entangled state as compared with a Bell state is measured to be 0.974 with the method of quantum state tomography. With this source, we also obtain a violation of Bell's inequality by 61 standard deviations in just a few seconds. © 2008 Optical Society of America.

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Citation Format(s)

Beamlike high-brightness source of polarization-entangled photon pairs. / Niu, Xiao-Ling; Huang, Yun-Feng; Xiang, Guo-Yong et al.
In: Optics Letters, Vol. 33, No. 9, 01.05.2008, p. 968-970.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review