Wavelength-Selective Distribution of Polarization Entanglement over Deployed Fiber
Anirudh Ramesh, Joaquín Chung, Gregory S. Kanter, Cristián Peña, Robert K. Plunkett, S. Xie, Panagiotis Spentzouris, Rajkumar Kettimuthu, Prem Kumar · 2023
We demonstrate distribution of polarization entangled photon-pairs across multiple channels in a 6 km loop of deployed fiber. We use an all-optical networking switch to route Bell-state photons in three different wavelength pairs and verify entanglement distribution in all channel pairs by measuring two-photon interference fringes.