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Publication Citation: Entangled photon generation in a phase-modulated, quasi-phasematched crystal

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Author(s): Paulina S. Kuo; Jason S. Pelc; Oliver T. Slattery; Yong-Su Kim; Xiao Tang;
Title: Entangled photon generation in a phase-modulated, quasi-phasematched crystal
Published: October 14, 2013
Abstract: We propose a scheme to generate polarization-entangled photon pairs by spontaneous parametric downconversion in a phase-modulated, type-II, quasi-phasematched (QPM) crystal. Instead of using two distinct crystals to generate |HV>and |VH> states, the phase-modulated QPM grating allows both states to be generated simultaneously in a distributed fashion throughout the nonlinear crystal. Temporal compensation is still needed to correct for effects of birefringence in the crystal. The distributed generation of the polarization-entangled photons is compared to generation using two sequential crystals.
Conference: SPIE Optics + Photonics
Proceedings: Quantum Communications and Quantum Imaging XI
Location: San Diego, CA
Dates: August 25-29, 2013
Keywords: quantum optics, nonlinear optics, parametric processes, polarization entangled pair source, spontaneous parametric downconversion, entanglement
Research Areas: Entanglement, Quantum Information, Entangled Photons, Quantum Communications
DOI: http://dx.doi.org/10.1117/12.2024286  (Note: May link to a non-U.S. Government webpage)