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

doi:10.1117/12.3017043

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

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.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

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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