This work proposes and analyses a novel approach for the generation of separable (quantum uncorrelated) photon pairs based on spontaneous parametric down-conversion in Bragg reflection waveguides composed of semiconductor AlGaN layers. This platform allows the removal of any spectral correlation between paired photons that propagate in different spatial modes. The photons can be designed to show equal or different spectra by tuning the structural parameters and hence the dispersion of the waveguide.
@article{arxiv.1011.4003,
title = {Generation of paired photons in a quantum separable state in Bragg reflection waveguides},
author = {Jiří Svozilík and Martin Hendrych and Amr S. Helmy and Juan P. Torres},
journal= {arXiv preprint arXiv:1011.4003},
year = {2011}
}