Compact and reconfigurable silicon nitride time-bin entanglement circuit

C. Xiong (Corresponding Author), X. Zhang, A. Mahendra, J. He, D.-Y. Choi, C.J. Chae, D. Marpaung, A. Leinse, R. Heideman, M. Hoekman, C.G.H. Roeloffzen, Ruud Oldenbeuving, P.W.L. van Dijk, C. Taddei, P.H.W. Leong, B.J. Eggleton

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Abstract

Photonic-chip-based time-bin entanglement has attracted significant attention because of its potential for quantum communication and computation. Useful time-bin entanglement systems must be able to generate, manipulate, and analyze entangled photons on a photonic chip for stable, scalable, and reconfigurable operation. Here we report the first time-bin entanglement photonic chip that integrates pump time-bin preparation, wavelength demultiplexing, and entanglement analysis. A two-photon interference fringe with 88.4% visibility is measured (without subtracting any noise), indicating the high performance of the chip. Our approach, based on a silicon nitride photonic circuit, which combines low loss and tight integration features, paves the way for scalable real-world quantum information processors.
Original languageEnglish
Pages (from-to)724-727
JournalOptica
Volume2
Issue number8
DOIs
Publication statusPublished - 2015

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Xiong, C., Zhang, X., Mahendra, A., He, J., Choi, D-Y., Chae, C. J., ... Eggleton, B. J. (2015). Compact and reconfigurable silicon nitride time-bin entanglement circuit. Optica, 2(8), 724-727. https://doi.org/10.1364/OPTICA.2.000724