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Optics Letters

Optics Letters


  • Editor: Anthony J. Campillo
  • Vol. 31, Iss. 18 — Sep. 15, 2006
  • pp: 2798–2800

Fiber-based telecom-band degenerate-frequency source of entangled photon pairs

Jun Chen, Kim Fook Lee, Chuang Liang, and Prem Kumar  »View Author Affiliations

Optics Letters, Vol. 31, Issue 18, pp. 2798-2800 (2006)

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We demonstrate the generation of polarization-entangled photon pairs of degenerate frequency for the first time, to the best of our knowledge, in standard optical fiber using a novel dual-pump, counterpropagating configuration. Two-photon interference with > 97 % visibility is obtained. The purity of the photon source, as characterized by the ratio of coincidence to accidental-coincidence counts, is shown to be as high as 116 under suitable operating conditions.

© 2006 Optical Society of America

OCIS Codes
(190.4380) Nonlinear optics : Nonlinear optics, four-wave mixing
(270.0270) Quantum optics : Quantum optics

ToC Category:
Quantum Optics

Original Manuscript: May 15, 2006
Revised Manuscript: June 20, 2006
Manuscript Accepted: June 22, 2006
Published: August 25, 2006

Jun Chen, Kim Fook Lee, Chuang Liang, and Prem Kumar, "Fiber-based telecom-band degenerate-frequency source of entangled photon pairs," Opt. Lett. 31, 2798-2800 (2006)

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