Spectral study of type-0/type-I spontaneous parametric down-conversion in a PPKTP waveguide

ORAL

Abstract

Compared with their bulk-crystal counterparts, SPDC in second-order ($\chi ^{(2)})$ nonlinear optical waveguides has been used to generate correlated photons that are naturally emitted into a single spatial mode in a collinear geometry, easing the effort in efficient photon collection and leading the potential to make chip-scale devices for quantum-information-processing applications. Here towards building chip-scale devices for quantum-information-processing applications, we performed the first spectral characterization of correlated two-photon, and single-photon emission for both type-0 and type-I spontaneous parametric down-conversion (SPDC) in a periodically-poled KTiOPO$_{4}$ (PPKTP) waveguide.

*Spectral study of type-0/type-I spontaneous parametric down-conversion in a PPKTP waveguide

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Authors

  • Jun Chen

  • Aaron Pearlman

    • Joint Quantum Institute, National Institute of Standards and Technology, and University of Maryland

  • Alexander Ling

    • Joint Quantum Institute, National Institute of Standards and Technology, and University of Maryland

  • Alan Migdall

    • Joint Quantum Institute, National Institute of Standards and Technology, and University of Maryland

  • Jingyun Fan

    • Joint Quantum Institute, National Institute of Standards and Technology, and University of Maryland