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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 22 — Oct. 22, 2012
  • pp: 25022–25029

Pulsed Sagnac source of polarization entangled photon pairs

Ana Predojević, Stephanie Grabher, and Gregor Weihs  »View Author Affiliations

Optics Express, Vol. 20, Issue 22, pp. 25022-25029 (2012)

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Photonic quantum information experiments demand bright and highly entangled photon pair sources. The combination of periodic poling and collinear excitation geometry allows the use of considerably longer crystals for parametric down-conversion. We demonstrate a picosecond-pulsed laser pumped source of high quality polarization entangled photon pairs. The phase of the output biphoton state is affected by the relative phase of the two-color interferometer and the phase of the nonlinearly interacting Gaussian beams. We measure the influence of these onto the phase of the output state. The presented source is a promising candidate for a compact, semiconductor laser driven source of entangled photon pairs.

© 2012 OSA

OCIS Codes
(000.1600) General : Classical and quantum physics
(190.4410) Nonlinear optics : Nonlinear optics, parametric processes
(270.0270) Quantum optics : Quantum optics

ToC Category:
Quantum Optics

Original Manuscript: September 11, 2012
Revised Manuscript: October 4, 2012
Manuscript Accepted: October 4, 2012
Published: October 17, 2012

Ana Predojević, Stephanie Grabher, and Gregor Weihs, "Pulsed Sagnac source of polarization entangled photon pairs," Opt. Express 20, 25022-25029 (2012)

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