A fully guided-wave squeezing experiment for fiber quantum networks
Authors: Kaiser F., Fedrici B., Zavatta A., D’Auria V., Tanzilli S.
Autors Affiliation: Université Nice Sophia Antipolis, Laboratoire de Physique de la Matière Condensée, CNRS UMR 7336, Parc Valrose, 06108 Nice Cedex 2, France; Istituto Nazionale di Ottica (INO-CNR) Largo Enrico Fermi 6, 50125 Firenze, Italy; LENS and Department of Physics, Universitá di Firenze, 50019 Sesto Fiorentino, Firenze
Abstract: Squeezed light is a fundamental resource for quantum communication. In view of its real-world applications, the realization of easy-to-operate experimental systems compatible with existing fiber networks is a crucial step. To comply with these requirements, we demonstrate the feasibility of a squeezing experiment at a telecom wavelength realized, for the first time, in an entirely guided-wave fashion. In our work, the state generation relies on waveguide nonlinear optics technology while squeezing collection and transmission are implemented by using only telecom fiber components. By doing so, we observe up to -1.83 +/- 0.05 dB of squeezing emitted at 1542 nm in the CW pumping regime. The compactness and stability of the experiment, compared to free-space configurations, represent a significant advance towards achieving out-of-the-lab continuous variable quantum communications that are fully compatible with long-distance operations in telecom fibers. We believe that this work stands as a promising approach for real applications as well as for \”do-it-yourself\” experiments. (C) 2016 Optical Society of America
Volume: 3 (4) Pages from: 362 to: 365
More Information: Agence Nationale de la Recherche (ANR) (SPOCQ: ANR-14-CE32-0019, CONNEQT: ANR-2011-EMMA-0002); Fondation Simone et Cino Del Duca; Centre National de la Recherche Scientifique.KeyWords: Fibers; Guided electromagnetic wave propagation; Nonlinear optics, Continuous variables; Experimental system; Free-space configurations; Fully compatible; Quantum network; Real applications; State generations; Telecom wavelengths, Quantum communicationDOI: 10.1364/OPTICA.3.000362Citations: 37data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2020-05-31References taken from IsiWeb of Knowledge: (subscribers only)Connecting to view paper tab on IsiWeb: Click hereConnecting to view citations from IsiWeb: Click here