Single Photon Frequency Conversion for Frequency Multiplexed Quantum Networks in the Telecom Band
Paul Fisher, Robert Čerňanský, Ben Haylock, Mirko Lobino
Abstract
High-speed long-range quantum communication requires combining frequency multiplexed photonic channels with quantum memories. We experimentally demonstrate an integrated quantum frequency conversion protocol that can convert between wavelength division multiplexing channels in the telecom range with an efficiency of 55±8% and a noise subtracted Hong-Ou-Mandel (HOM) dip visibility of 84.5%. This protocol is based on a cascaded second order nonlinear interaction and can be used to interface a broad spectrum of frequencies with narrowband quantum memories, or alternatively as a quantum optical transponder, efficiently interfacing different regions of a frequency-multiplexed spectrum.
Topics & Concepts
MultiplexingPhysicsPhotonicsTransponder (aeronautics)Quantum networkFrequency-division multiplexingTelecommunicationsPhotonNarrowbandQuantumOptoelectronicsOpticsComputer scienceQuantum computerOrthogonal frequency-division multiplexingQuantum mechanicsChannel (broadcasting)MeteorologyQuantum optics and atomic interactionsQuantum Information and CryptographyMechanical and Optical Resonators