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Conference on Lasers and Electro-Optics

Interfacing solid-state single-photon sources and integrated photonics circuits: high rate three-photon coalescence

C. Antón, G. Coppola, J. C. Loredo, N. Viggianello, H. Ollivier, Abdelmounaïm Harouri, Niccolò Somaschi, Andrea Crespi, Isabelle Sagnes, Aristide Lemaître, L. Lanco, Roberto Osellame, Fabio Sciarrino, P. Senellart

Published Jan 1, 2019• 0 citations
Publisher

Abstract

We report the interfacing of an integrated solid-state single-photon source with an integrated, reconfigurable photonic tritter demonstrating a highly efficient quantum interference of three indistinguishable single photons.
DOI
10.1364/cleo_qels.2019.fm1m.1

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Scaling-up optical quantum technologies requires to combine highly efficient multi-photon sources and integrated waveguide components. Here, we interface these scalable platforms: a quantum dot based multi-photon source and a reconfigurable photonic chip on glass are combined to demonstrate high-rate three-photon interference. The temporal train of single-photons obtained from a quantum emitter is actively demultiplexed to generate a 3.8 kHz three-photon source, which is then sent to the input of a tuneable tritter circuit, demonstrating the on-chip quantum interference of three indistinguishable single-photons. Pseudo number-resolving photon detection characterising the output distribution shows that this first combination of scalable sources and reconfigurable photonic circuits compares favourably in performance with respect to previous implementations. A detailed loss-budget shows that merging solid-state based multi-photon sources and reconfigurable photonic chips could allow ten-photon experiments on chip at ∼40{\sim}40∼40 Hz rate in a foreseeable future.
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