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Towards nondegenerate polarization entanglement from a waveguide down-conversion source
Author(s): Kristina A. Meier; Fumihiro Kaneda; Paul G. Kwiat
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Paper Abstract

As optical quantum information processing protocols and experiments become increasingly more complex, integrated optics provide a small and robust alternative to traditional bulk optics. Specifically, waveguide technology allows for the creation of bright single-photon sources based on the fact that photon pairs can be created at any location along the waveguide. For our goals, we are working on the characterization of a highly nondegenerate Spontaneous Parametric Down-Conversion (SPDC) waveguide source on a periodically poled KTP (PPKTP) crystal. Our current waveguide source uses type-II phase-matching to create collinear signal and idler photons at 1550 nm and 810 nm, respectively, with the promise of generating simultaneous time-bin and polarization entanglement in future iterations. Our intended source application is for use in quantum key distribution and superdense teleportation protocols between a space platform and collection telescopes on Earth.

Paper Details

Date Published: 14 May 2018
PDF: 7 pages
Proc. SPIE 10659, Advanced Photon Counting Techniques XII, 106590K (14 May 2018); doi: 10.1117/12.2306532
Show Author Affiliations
Kristina A. Meier, Univ. of Illinois (United States)
Fumihiro Kaneda, Univ. of Illinois (United States)
Paul G. Kwiat, Univ. of Illinois (United States)

Published in SPIE Proceedings Vol. 10659:
Advanced Photon Counting Techniques XII
Mark A. Itzler; Joe C. Campbell, Editor(s)

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