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, R.M. Oldenbeuving, P.W.L. van Dijk, C. Taddei, P.H.W. Leong, B.J. Eggleton

Research output: Contribution to journalArticleAcademicpeer-review

71 Citations (Scopus)
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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
Issue number8
Publication statusPublished - 2015


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