Cougate-Franson interferometry for testing nonlocality of time-energy entangled biphotons

Changchen Chen; Jeffrey H. Shapiro; Franco N. C. Wong

doi:10.1364/CLEO_QELS.2021.FM3M.5

Conference on Lasers and Electro-Optics
OSA Technical Digest (Optica Publishing Group, 2021),
paper FM3M.5
•https://doi.org/10.1364/CLEO_QELS.2021.FM3M.5

Cougate-Franson interferometry for testing nonlocality of time-energy entangled biphotons

Changchen Chen, Jeffrey H. Shapiro, and Franco N. C. Wong

CLEO: QELS_Fundamental Science 2021

San Jose, California United States
9–14 May 2021
ISBN: 978-1-943580-91-0

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Teleportation and Entanglement (FM3M)

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C. Chen, J. H. Shapiro, and F. N. C. Wong, "Cougate-Franson interferometry for testing nonlocality of time-energy entangled biphotons," in Conference on Lasers and Electro-Optics, J. Kang, S. Tomasulo, I. Ilev, D. Müller, N. Litchinitser, S. Polyakov, V. Podolskiy, J. Nunn, C. Dorrer, T. Fortier, Q. Gan, and C. Saraceno, eds., OSA Technical Digest (Optica Publishing Group, 2021), paper FM3M.5.

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Abstract

We report the first experimental demonstration of a conjugate-Franson interferometer, i.e., a nonlocal interferometer that can certify time-energy entanglement. Our measured 96% visibility tightly bounds the temporal correlation of biphotons generated by spontaneous parametric down-conversion.

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