Laurat, Julien and Keller, Gaëlle and Fabre, Claude and Coudreau, Thomas (2006) Generation of two-color polarization-entangled optical beams with a self-phase-locked two-crystal optical parametric oscillator. Physical Review A, 73 (1). Art. No. 012333. ISSN 1050-2947 http://resolver.caltech.edu/CaltechAUTHORS:LAUpra06
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A device to generate polarization-entangled light in the continuous-variable regime is introduced. It consists of an optical parametric oscillator with two type-II phase-matched nonlinear crystals orthogonally oriented, associated with birefringent elements for adjustable linear coupling. We give in this paper a theoretical study of its classical and quantum properties. It is shown that two optical beams with adjustable frequencies and well-defined polarization can be emitted. The Stokes parameters of the two beams are entangled. The principal advantage of this setup is the possibility to directly generate polarization-entangled light without the need of mixing four modes on beamsplitters as required in current experimental setups. This device opens up different directions for the study of light-matter interfaces and a generation of multimode nonclassical light and higher dimensional phase space.
|Additional Information:||©2006 The American Physical Society. Received 4 November 2005; published 24 January 2006. Laboratoire Kastler-Brossel of the Ecole Normale Supérieure and the Université Pierre et Marie Curie, is associated with the Centre National de la Recherche Scientifique (UMR 8552). Laboratoire Matériaux et Phénomènes Quantiques of Université Denis Diderot, is associated with the Centre National de la Recherche Scientifique (UMR 7162). We thank A. Gatti for pointing us to Ref.  and acknowledge fruitful discussions with G. Adesso and A. Serafini.|
|Subject Keywords:||quantum entanglement; quantum optics; optical parametric oscillators; optical beam splitters; quantum communication; optical communication|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Lindsay Cleary|
|Deposited On:||12 Jul 2006|
|Last Modified:||26 Dec 2012 08:56|
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