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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 29, Iss. 23 — Dec. 1, 2004
  • pp: 2794–2796

Experimental demonstration of a pure third-order optical parametric downconversion process

J. Douady and B. Boulanger  »View Author Affiliations


Optics Letters, Vol. 29, Issue 23, pp. 2794-2796 (2004)
http://dx.doi.org/10.1364/OL.29.002794


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Abstract

We report what is, to the best of our knowledge, the first experiment on third-order optical difference frequency generation. The nonlinear medium is a phase-matched KTiOPO4 crystal pumped at 532 and 1665 nm in the picosecond regime. The proposed experimental configuration leads to an efficient and pure cubic process, with generation of 4.5μJ/pulse at 1474 nm. This result opens the way to new quantum experiments on three-photon Greenberger–Horne–Zeilinger entanglement.

© 2004 Optical Society of America

OCIS Codes
(190.4410) Nonlinear optics : Nonlinear optics, parametric processes
(270.6570) Quantum optics : Squeezed states

Citation
J. Douady and B. Boulanger, "Experimental demonstration of a pure third-order optical parametric downconversion process," Opt. Lett. 29, 2794-2796 (2004)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-29-23-2794

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