Entangled photon-pair generation in periodically-poled thin-film lithium niobate waveguides

Jie Zhao; Chaoxuan Ma; Michael Rüsing; Shayan Mookherjea

doi:10.1103/PhysRevLett.124.163603

Entangled photon-pair generation in periodically-poled thin-film lithium niobate waveguides

Quantum Physics 2020-05-20 v1

Authors: Jie Zhao , Chaoxuan Ma , Michael Rüsing , Shayan Mookherjea

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Abstract

We report measurements of time-frequency entangled photon pairs and heralded single photons at telecommunications wavelengths, generated using a periodically-poled, lithium niobate on insulator (LNOI) waveguide pumped optically by a diode laser. We achieve a high Coincidences-to-Accidentals Ratio (CAR) at high pair brightness, a low value of the conditional self-correlation function [ $g^{(2)}$ (0)], and high two-photon energy-time Franson interferometric visibility, which demonstrate the high quality of the entangled photon pairs and heralded single photons.

Keywords

entangled photon pairs thin-film lithium niobate waveguide heralded single photons telecommunications wavelengths franson interference

Cite

@article{arxiv.1910.03202,
  title  = {Entangled photon-pair generation in periodically-poled thin-film lithium niobate waveguides},
  author = {Jie Zhao and Chaoxuan Ma and Michael Rüsing and Shayan Mookherjea},
  journal= {arXiv preprint arXiv:1910.03202},
  year   = {2020}
}

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