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arXiv · 2008.02172

Configurable heralded two-photon Fock-states on a chip

Xin Hua·Tommaso Lunghi·Florent Doutre·Panagiotis Vergyris·Grégory Sauder·Pierrick Charlier·Laurent Labonté·Virginia D'Auria·Anthony Martin·Sorin Tascu·Marc P. De Micheli·Sébastien Tanzilli·Olivier Alibart
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Abstract

Progress in integrated photonics enables combining several elementary functions on single substrates for realizing advanced functionnalized chips. We report a monolithic integrated quantum photonic realization on lithium niobate, where nonlinear optics and electro-optics properties have been harnessed simultaneously for generating heralded configurable, two-photon states. Taking advantage of a picosecond pump laser and telecom components, we demonstrate the production of various path-coded heralded two-photon states, showing 94\% raw visibility for Hong-Ou-Mandel interference. The versatility and performance of such a highly integrated photonic entanglement source enable exploring more complex quantum information processing protocols finding application in communication, metrology and processing tasks.

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Xin Hua, Tommaso Lunghi, Florent Doutre, Panagiotis Vergyris, Grégory Sauder, Pierrick Charlier, Laurent Labonté, Virginia D'Auria, Anthony Martin, Sorin Tascu, Marc P. De Micheli, Sébastien Tanzilli, Olivier Alibart. 2020-08-05. Configurable heralded two-photon Fock-states on a chip. https://doi.org/10.1364/oe.403552

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