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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 38, Iss. 4 — Feb. 15, 2013
  • pp: 489–491

Optimization of two-photon wave function in parametric down conversion by adaptive optics control of the pump radiation

M. Minozzi, S. Bonora, A. V. Sergienko, G. Vallone, and P. Villoresi  »View Author Affiliations


Optics Letters, Vol. 38, Issue 4, pp. 489-491 (2013)
http://dx.doi.org/10.1364/OL.38.000489


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Abstract

We present an efficient method for optimizing the spatial profile of entangled-photon wave function produced in a spontaneous parametric down conversion process. A deformable mirror that modifies a wavefront of a 404 nm CW diode laser pump interacting with a nonlinear β-barium borate type-I crystal effectively controls the profile of the joint biphoton function. The use of a feedback signal extracted from the biphoton coincidence rate is used to achieve the optimal wavefront shape. The optimization of the two-photon coupling into two, single spatial modes for correlated detection is used for a practical demonstration of this physical principle.

© 2013 Optical Society of America

OCIS Codes
(190.4410) Nonlinear optics : Nonlinear optics, parametric processes
(270.0270) Quantum optics : Quantum optics

ToC Category:
Quantum Optics

History
Original Manuscript: November 5, 2012
Revised Manuscript: December 23, 2012
Manuscript Accepted: December 23, 2012
Published: February 8, 2013

Citation
M. Minozzi, S. Bonora, A. V. Sergienko, G. Vallone, and P. Villoresi, "Optimization of two-photon wave function in parametric down conversion by adaptive optics control of the pump radiation," Opt. Lett. 38, 489-491 (2013)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-38-4-489

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