Generation of polarization-entangled photon pairs in a Bragg reflection waveguide.

@article{Valls2013GenerationOP,
  title={Generation of polarization-entangled photon pairs in a Bragg reflection waveguide.},
  author={Adam Vall{\'e}s and Martin Hendrych and Jǐr{\'i} Svozil{\'i}k and Radek Machulka and Payam Abolghasem and Donghoon Kang and Bhavin J. Bijlani and Amr S. Helmy and Juan Pablo Torres},
  journal={Optics express},
  year={2013},
  volume={21 9},
  pages={10841-9}
}
We demonstrate experimentally that spontaneous parametric down-conversion in an AlxGa(1-x)As semiconductor Bragg reflection waveguide can make for paired photons highly entangled in the polarization degree of freedom at the telecommunication wavelength of 1550 nm. The pairs of photons show visibility higher than 90% in several polarization bases and violate a Clauser-Horne-Shimony-Holt Bell-like inequality by more than 3 standard deviations. This represents a significant step toward the… CONTINUE READING