Generation of polarization-entangled photon pairs in a planar waveguide

Divya Bharadwaj and K. Thyagarajan
Phys. Rev. A 94, 063816 – Published 6 December 2016

Abstract

In this paper, we show that the polarization-entangled photon pairs can be generated using spontaneous parametric down conversion in a dual periodically poled planar waveguide. The proposed configuration is shown to have efficiencies higher than in the case of bulk crystals with the possibility of ease of collection, like in channel waveguides, with the additional feature of wavelength tunability. We also show that the planar waveguide configuration permits the generation of hyperentanglement in polarization and path degree of freedom, which is not possible in case of channel waveguide. The proposed design should find applications in quantum information processing using integrated quantum optics.

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  • Received 25 April 2016
  • Revised 30 September 2016

DOI:https://doi.org/10.1103/PhysRevA.94.063816

©2016 American Physical Society

Physics Subject Headings (PhySH)

Atomic, Molecular & Optical

Authors & Affiliations

Divya Bharadwaj* and K. Thyagarajan

  • Department of Physics, IIT Delhi, New Delhi 110016, India

  • *divyabharadwaj4@gmail.com

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Issue

Vol. 94, Iss. 6 — December 2016

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