Generation of paired photons in a quantum separable state in Bragg reflection waveguides
Ji\v{r}\'i Svozil\'ik, Martin Hendrych, Amr S. Helmy, Juan P., Torres
TL;DR
This paper presents a new method for generating spectrally uncorrelated photon pairs using spontaneous parametric down-conversion in semiconductor Bragg reflection waveguides, enabling control over photon spectra and correlations.
Contribution
It introduces a novel approach utilizing Bragg reflection waveguides for producing separable photon pairs with tunable spectral properties.
Findings
Spectrally uncorrelated photon pairs can be generated in Bragg reflection waveguides.
The spectral properties of photon pairs can be tailored by adjusting waveguide parameters.
The method removes spectral correlations, enhancing quantum information applications.
Abstract
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.
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