Polarization-entangled photon pair source using beam displacers and thin crystals

Minjae Hong; Rodrigo Gomez; Valerio Flavio Gili; Jorge Fuenzalida; Markus Gräfe

doi:10.1364/OL.536820

Polarization-entangled photon pair source using beam displacers and thin crystals

Quantum Physics 2024-10-18 v2

Authors: Minjae Hong , Rodrigo Gomez , Valerio Flavio Gili , Jorge Fuenzalida , Markus Gräfe

View on arXiv ↗ PDF ↗ DOI ↗

Abstract

We present an experimental implementation of a polarization-entangled photon pair source based on beam displacers. The down-converted photons are emitted via spontaneous parametric down-conversion in a non-degenerate and type-0 process. We obtain a state fidelity of $F=0.975\pm0.004$ and violate a Clauser-Horne-Shimony-Holt inequality with $S=2.75\pm0.01$ . Our source also uses thin crystals for applications in quantum imaging, taking advantage of the large number of spatial modes. We estimate that our source could produce 550 $\pm$ 12 spatial modes.

Keywords

photon pair generation polarization optics spontaneous parametric down-conversion

Cite

@article{arxiv.2405.04360,
  title  = {Polarization-entangled photon pair source using beam displacers and thin crystals},
  author = {Minjae Hong and Rodrigo Gomez and Valerio Flavio Gili and Jorge Fuenzalida and Markus Gräfe},
  journal= {arXiv preprint arXiv:2405.04360},
  year   = {2024}
}

Comments

4 pages, 5 figures, 1 table

Related papers

View all related →