Building an integrated quantum photonics platform on silicon for ultra-secure communications

Ségolène Olivier; Corrado Sciancalepore; Houssein El Dirani; Quentin Wilmart; Raouia Rhazi; Eva Monroy; Jean-Michel Gerard; Davide Bacco; Federico Sabattoli; Matteo Galli; Daniele Bajoni; Johan Rothman

doi:10.1117/12.2594711

1 August 2021 Building an integrated quantum photonics platform on silicon for ultra-secure communications

Ségolène Olivier, Corrado Sciancalepore, Houssein El Dirani, Quentin Wilmart, Raouia Rhazi, Eva Monroy, Jean-Michel Gerard, Davide Bacco, Federico Sabattoli, Matteo Galli, Daniele Bajoni, Johan Rothman

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Proceedings Volume 11806, Quantum Nanophotonic Materials, Devices, and Systems 2021; 118060P (2021) https://doi.org/10.1117/12.2594711
Event: SPIE Nanoscience + Engineering, 2021, San Diego, California, United States

Abstract

Silicon photonics based on CMOS technology is a very attractive platform to build compact, low-cost and scalable quantum photonics integrated circuits addressing the requirements of quantum key distribution protocols. We show record low propagation losses below 0.5 dB/cm and below 0.05 dB/cm for silicon and silicon nitride waveguides respectively. We will present our results on integrated components such as hybrid III-V on silicon lasers for weak coherent pulse generation, high-quality microresonators for entangled photon pair generation and we will show our recent developments on high crystalline quality NbN thin films with improved critical temperature for waveguide-integrated superconducting single photon detectors.

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Ségolène Olivier, Corrado Sciancalepore, Houssein El Dirani, Quentin Wilmart, Raouia Rhazi, Eva Monroy, Jean-Michel Gerard, Davide Bacco, Federico Sabattoli, Matteo Galli, Daniele Bajoni, and Johan Rothman "Building an integrated quantum photonics platform on silicon for ultra-secure communications", Proc. SPIE 11806, Quantum Nanophotonic Materials, Devices, and Systems 2021, 118060P (1 August 2021); https://doi.org/10.1117/12.2594711

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KEYWORDS

Silicon

Photonics

Silicon photonics

Photons

Quantum key distribution

Waveguides

Laser development

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