Polarization-entangled photon pair source using beam displacers and thin crystals
arXiv:2405.04360 · doi:10.1364/OL.536820
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 and violate a Clauser-Horne-Shimony-Holt inequality with . 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 55012 spatial modes.
4 pages, 5 figures, 1 table
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