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All-Fiber Source and Sorter for Multimode Correlated Photons (2012.14024v3)
Published 27 Dec 2020 in quant-ph and physics.optics
Abstract: Photons occupying multiple spatial modes hold a great promise for implementing high-dimensional quantum communication. We use spontaneous four-wave mixing to generate multimode photon pairs in a few mode fiber. We show the photons are correlated in the fiber mode basis using an all-fiber mode sorter. Our demonstration offers an essential building block for realizing high-dimensional quantum protocols based on standard, commercially available fibers, in an all-fiber configuration.