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11 June 2024 Hybrid III-V/Silicon photonic circuits embedding generation and routing of entangled photon pairs
L. Lazzari, J. Schuhmann, A. Lemaître, M. I. Amanti, F. Boeuf, F. Raineri, F. Baboux, S. Ducci
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Proceedings Volume PC12993, Quantum Technologies 2024; PC1299307 (2024) https://doi.org/10.1117/12.3017043
Event: SPIE Photonics Europe, 2024, Strasbourg, France
Abstract
Hybrid photonic devices, harnessing the advantages of multiple materials while mitigating their respective weaknesses, represent a promising solution to the effective on-chip integration of generation and manipulation of non-classical states of light encoding quantum information. We demonstrate a hybrid III-V/Silicon quantum photonic device combining the strong second-order nonlinearity and compliance with electrical pumping of the III-V semiconductor platform with the high maturity and CMOS compatibility of the silicon photonic platform. Our device embeds the Spontaneous Parametric Down-Conversion (SPDC) of photon pairs into an AlGaAs source and their subsequent routing to a silicon-on-insulator circuitry. This enables the on-chip generation of broadband telecom photon pairs by type zero and type two SPDC from the hybrid device, at room temperature and with strong rejection of the pump beam. Two-photon interference with 92% visibility proves the high energy-time entanglement quality characterizing the produced quantum state, thereby enabling a wide range of quantum information applications.
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(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.
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L. Lazzari, J. Schuhmann, A. Lemaître, M. I. Amanti, F. Boeuf, F. Raineri, F. Baboux, and S. Ducci "Hybrid III-V/Silicon photonic circuits embedding generation and routing of entangled photon pairs", Proc. SPIE PC12993, Quantum Technologies 2024, PC1299307 (11 June 2024); https://doi.org/10.1117/12.3017043
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KEYWORDS
Photonic integrated circuits
Quantum entanglement
Silicon
Quantum information applications
Quantum interferometry
Quantum light
Quantum processes
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