Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

OSA Advanced Photonics Congress

III-V integrated nonlinear photonic chips for the generation and manipulation of quantum states of light

G. Maltese, J. Belhassen, Saverio Francesconi, Aristide Lemaître, Maria I. Amanti, F. Baboux, S. Ducci

Published Jan 1, 2018• 0 citations
Publisher

Abstract

I present our last results on AlGaAs photonic devices emitting non-classical states of light at room temperature: monolithic integration of heralded single photon sources and beam splitters and engineering of frequency qudits and non-Gaussian entanglement.
DOI
10.1364/np.2018.npm2i.1

Related papers

AlGaAs photonic devices for quantum information

G. Maltese, J. Belhassen, Saverio Francesconi +4 more

We present our last achievements on AlGaAs photonic devices emitting non-classical states of light at room temperature. We will discuss how different device designs can be adopted to engineer the generated quantum state depending on the target application.

Frontiers in Optics•Jan 1, 2017•0 citations

Photon pair sources in AlGaAs: from electrical injection to quantum state engineering

Claire Autebert, Guillaume Boucher, Fabien Boitier +4 more

Integrated quantum photonics is a very active field of quantum information, communication, and processing. One of the main challenges to achieve massively parallel systems for complex operations is the generation, manipulation, and detection of many qubits within the same chip. Here, we present our last achievements on AlGaAs quantum photonic devices emitting nonclassical states of light at room temperature by spontaneous parametric down conversion (SPDC). The choice of this platform combines the advantages of a mature fabrication technology, a high nonlinear coefficient, a SPDC wavelength in the C-telecom band and the possibility of electrical injection.

Journal of Modern Optics•Jan 15, 2015•14 citations

Nonlinear Integrated AlGaAs Chips for Quantum Information

S. Ducci, Othmane Meskine, Lorenzo Lazzari +4 more

The talk will review our recent developments on monolithic and hybrid AlGaAs integrated devices, demonstrate their versatility for generating and manipulating quantum states, and show their potential for flexible entanglement-distribution networks. Full-text article not available; see video presentation

Frontiers in Optics•Jan 1, 2024•0 citations

Chip-scale nonlinear photonics for quantum light generation

Galan Moody, Lin Chang, Trevor J. Steiner +1 more

Nonclassical states of light are an essential resource for many emerging quantum technologies and applications ranging from information processing, encrypted communications, and networking to sensing, metrology, and imaging. Nonlinear optical processes in solid-state materials are widely used for generating quantum light, including single photons, entangled-photon pairs, and quadrature-squeezed states. Recent advances in nonlinear photonics have enabled the functionality of benchtop nonlinear instruments to be scaled down to a single chip without sacrificing efficiency or degrading the key performance metrics. The dramatic improvement in the size, weight, power, cost, and stability enabled by photonic integrated circuits has been essential for enabling the chip-scale generation, manipulation, and detection of quantum light at a steadily increasing degree of complexity and scale. Within the last decade, the authors have seen the progression from few-component photonic circuits operating on two photons to arrays of 18 identical heralded single-photon sources and reconfigurable devices operating with more than 650 components for multidimensional entanglement and arbitrary two-photon quantum gates. In this review, the authors summarize the history and recent key technological developments of chip-scale nonlinear quantum light generation based on integrated nonlinear photonics, recent advances in heterogeneous integrated methods, and approaches for system-level integration and demonstrated applications.

AVS Quantum Science•Oct 14, 2020•117 citations

On-chip monolithic integration of heralded single photons sources and beam splitters

J. Belhassen, Yacine Halioua, Qi-Feng Yao +7 more

We demonstrate the monolithic integration of a heralded single photon AlGaAs source and a 50/50 beamsplitter. A cross correlation measurement on the beamsplitter output ports reveals the quantum nature of the generated light.

Quantum Information and Measurement (QIM)•Jan 1, 2017•1 citation

Nonlinear integrated quantum photonics with AlGaAs

F. Baboux, G. Moody, S. Ducci

Integrated photonics provides a powerful approach for developing compact, stable and scalable architectures for the generation, manipulation and detection of quantum states of light. To this end, several material platforms are being developed in parallel, each providing its specific assets, and hybridization techniques to combine their strengths are now possible. This review focuses on AlGaAs, a III-V semiconductor platform combining a mature fabrication technology, direct band-gap compliant with electrical injection, low-loss operation, large electro-optic effect, and compatibility with superconducting detectors for on-chip detection. We detail recent implementations of room-temperature sources of quantum light based on the high second- and third-order optical nonlinearities of the material, as well as photonic circuits embedding various functionalities ranging from polarizing beamsplitters to Mach-Zehnder interferometers, modulators and tunable filters. We then present several realizations of quantum state engineering enabled by these recent advances and discuss open perspectives and remaining challenges in the field of integrated quantum photonics with AlGaAs.

quant-pharXiv:2602.11421•Optica•Feb 13, 2026•64 citations
Integrated quantum photonics is a very active field of quantum information, communication, and processing. One of the main challenges to achieve massively parallel systems for complex operations is the generation, manipulation, and detection of many qubits within the same chip. Here, we present our last achievements on AlGaAs quantum photonic devices emitting nonclassical states of light at room temperature by spontaneous parametric down conversion (SPDC). The choice of this platform combines the advantages of a mature fabrication technology, a high nonlinear coefficient, a SPDC wavelength in the C-telecom band and the possibility of electrical injection.
Nonclassical states of light are an essential resource for many emerging quantum technologies and applications ranging from information processing, encrypted communications, and networking to sensing, metrology, and imaging. Nonlinear optical processes in solid-state materials are widely used for generating quantum light, including single photons, entangled-photon pairs, and quadrature-squeezed states. Recent advances in nonlinear photonics have enabled the functionality of benchtop nonlinear instruments to be scaled down to a single chip without sacrificing efficiency or degrading the key performance metrics. The dramatic improvement in the size, weight, power, cost, and stability enabled by photonic integrated circuits has been essential for enabling the chip-scale generation, manipulation, and detection of quantum light at a steadily increasing degree of complexity and scale. Within the last decade, the authors have seen the progression from few-component photonic circuits operating on two photons to arrays of 18 identical heralded single-photon sources and reconfigurable devices operating with more than 650 components for multidimensional entanglement and arbitrary two-photon quantum gates. In this review, the authors summarize the history and recent key technological developments of chip-scale nonlinear quantum light generation based on integrated nonlinear photonics, recent advances in heterogeneous integrated methods, and approaches for system-level integration and demonstrated applications.
Integrated photonics provides a powerful approach for developing compact, stable and scalable architectures for the generation, manipulation and detection of quantum states of light. To this end, several material platforms are being developed in parallel, each providing its specific assets, and hybridization techniques to combine their strengths are now possible. This review focuses on AlGaAs, a III-V semiconductor platform combining a mature fabrication technology, direct band-gap compliant with electrical injection, low-loss operation, large electro-optic effect, and compatibility with superconducting detectors for on-chip detection. We detail recent implementations of room-temperature sources of quantum light based on the high second- and third-order optical nonlinearities of the material, as well as photonic circuits embedding various functionalities ranging from polarizing beamsplitters to Mach-Zehnder interferometers, modulators and tunable filters. We then present several realizations of quantum state engineering enabled by these recent advances and discuss open perspectives and remaining challenges in the field of integrated quantum photonics with AlGaAs.