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9 results on '"Nicola Corrias"'

1. Implementation of Italian industry 4.0 quantum testbed in Turin

Author

Nicola Corrias, Ilaria Vagniluca, Saverio Francesconi, Claudia De Lazzari, Nicola Biagi, Marco Menchetti, Giovanni Lombardi, Antonino Scordato, Valerio Gionco, Roberto Mercinelli, Annachiara Pagano, Maurizio Valvo, Orlando Tovar, Giorgio Giacalone, Paolo Brizzi, Tommaso Occhipinti, Alessandro Zavatta, and Davide Bacco

Subjects
optical fibre networks, private key cryptography, quantum communication, quantum cryptography, telecommunication security, Telecommunication, TK5101-6720
Abstract

Abstract The security of data communications is one of the crucial challenges that our society is facing today. Quantum Key Distribution (QKD) is one of the most prominent methods for guaranteeing ultimate security based on the laws of quantum physics. In this work, the results obtained during the Italian Industry 4.0 Quantum Testbed (II4QuTe) project are reported where the authors realised a QKD testbed securely connecting the Competence Industry Manufacturing 4.0 (CIM4.0) located in Torino and a TIM edge node located 10 km away from the testbed. The edge node accommodates the server providing computation capabilities for managing the real‐time data generated by the machines within the CIM4.0 digital factory pilot line, thus gracefully integrating QKD with the MEC (Multi‐access Edge Computing) paradigm. The experiment was conducted for more than 69 h, establishing an average key generation rate of 5.125 keys/s (AES‐256 keys) and demonstrating the stability of the entire end‐to‐end encryption system.

Published
2024
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2. Intensity Correlations in Quantum Cascade Laser Harmonic Frequency Combs

Author

Tecla Gabbrielli, Natalia Bruno, Nicola Corrias, Simone Borri, Luigi Consolino, Mathieu Bertrand, Mehran Shahmohammadi, Martin Franckié, Mattias Beck, Jérôme Faist, Alessandro Zavatta, Francesco Cappelli, and Paolo De Natale

Subjects
frequency comb, intensity correlation, mid-infrared light, quantum cascade laser, Applied optics. Photonics, TA1501-1820, Optics. Light, QC350-467
Abstract

A novel study on harmonic frequency combs emitted by quantum cascade lasers (QCLs) is presented here, demonstrating the presence of intensity correlations between twin modes characterizing the emission spectra. These originate from a four‐wave mixing process driven by the active medium's third‐order nonlinearity. The study of such correlations is essential for the engineering of a new generation of semiconductor devices with the potential of becoming integrated emitters of light with quantum properties, such as squeezing and entanglement. Starting from experimental results, the limits of state‐of‐the‐art technology are discussed as well as the possible methodologies that could lead to the detection of nonclassical phenomena, or alternatively improve the design of QCLs, in the compelling perspective of generating quantum correlations in mid‐infrared light.

Published
2022
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4. Analog FM free-space optical communication based on a mid-infrared quantum cascade laser frequency comb

Author

Francesco Cappelli, Nicola Corrias, Paolo De Natale, Luigi Consolino, and Tecla Gabbrielli

Subjects
Physics, business.industry, Optical communication, FOS: Physical sciences, Physics::Optics, Applied Physics (physics.app-ph), Physics - Applied Physics, Atomic and Molecular Physics, and Optics, law.invention, Amplitude modulation, Frequency comb, Analog signal, Optics, law, Digital signal, business, Quantum cascade laser, Frequency modulation, Free-space optical communication, Optics (physics.optics), Physics - Optics
Abstract

Quantum cascade laser frequency combs are nowadays well-appreciated sources for infrared spectroscopy. Here their applicability for free-space optical communication is demonstrated. The spontaneously-generated intermodal beat note of the frequency comb is used as carrier for transferring the analog signal via frequency modulation. Exploiting the atmospheric transparency window at 4 $\mu$m, an optical communication with a signal-to-noise ratio up to 65 dB is realized, with a modulation bandwidth of 300 kHz. The system tolerates a maximum optical attenuation exceeding 35 dB. The possibility of parallel transmission of an independent digital signal via amplitude modulation at 5 MS/s is also demonstrated., Comment: 17 pages, 13 figures

Published
2022

5. Intensity correlation in harmonic comb emitted by quantum cascade laser

Author

Tecla Gabbrielli, Natalia Bruno, Nicola Corrias, Simone Borri, Luigi Consolino, Mathieu Bertrand, Mehran Shahmohammadi, Martin Franckié, Mattias Beck, Jérôme Faist, Alessandro Zavatta, Paolo De Natale, and Francesco Cappelli

Abstract

We demonstrate the presence of intensity correlation in the harmonic comb emitted by quantum cascade lasers, paving the way for a deeper understanding of the role of the four-wave-mixing process enabling this emission.

Published
2022
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6. Free-space optical communication with a quantum cascade laser frequency comb

Author

Nicola Corrias, Tecla Gabbrielli, Paolo De Natale, Luigi Consolino, and Francesco Cappelli

Abstract

We demonstrate the potentiality of quantum-cascade-laser frequency combs for optical communication in the atmospheric transparency window around 4 µm. The intermodal beat note is used as carrier for transmitting the analog signal via frequency-modulation.

Published
2022
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7. Mid-infrared balanced detector for characterization of quantum light

Author

Alessandro Zavatta, Natalia Bruno, Paolo De Natale, Francesco Cappelli, Simone Borri, Tecla Gabbrielli, and Nicola Corrias

Subjects
Physics, business.industry, Detector, Quantum channel, Laser, Characterization (materials science), law.invention, Homodyne detection, law, Cascade, Optoelectronics, Quantum information science, business, Quantum, Astrophysics::Galaxy Astrophysics
Abstract

We present a novel shot-noise-limited balanced-homodyne detector operating in the mid-infrared useful for revealing possible non-classicality in quantum cascade lasers emission. We will give a view to quantum-technologies applications such as free-space quantum communication.

Published
2021
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8. Mid-infrared homodyne balanced detector for quantum light characterization

Author

Francesco Cappelli, Tecla Gabbrielli, Alessandro Zavatta, Paolo De Natale, Natalia Bruno, Nicola Corrias, and Simone Borri

Subjects
Physics, Noise power, Quantum Physics, business.industry, Detector, FOS: Physical sciences, 02 engineering and technology, Quantum key distribution, 021001 nanoscience & nanotechnology, Laser, 01 natural sciences, Atomic and Molecular Physics, and Optics, law.invention, 010309 optics, Quantum technology, Direct-conversion receiver, Optics, law, 0103 physical sciences, 0210 nano-technology, business, Quantum information science, Quantum Physics (quant-ph), Quantum, Astrophysics::Galaxy Astrophysics
Abstract

We present the characterization of a novel balanced homodyne detector operating in the mid-infrared. The challenging task of revealing non-classicality in mid-infrared light, e.~g. in quantum cascade lasers emission, requires a high-performance detection system. Through the intensity noise power spectral density analysis of the differential signal coming from the incident radiation, we show that our setup is shot-noise limited. We discuss the experimental results with a view to possible applications to quantum technologies, such as free-space quantum communication., Comment: 15 pages, 6 figures

Published
2021
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9. Multiplatform Study of Four Wave Mixing For Quantum Frequency Comb Generation

Author

Paolo De Natale, Natalia Bruno, Pietro Lombardi, Francesco Cappelli, Alessandro Zavatta, Nicola Corrias, Tecla Gabbrielli, Ivana Mastroserio, and Francesco Saverio Cataliotti

Subjects
Physics, Infrared, Mid infrared, Physics::Optics, chemistry.chemical_element, 02 engineering and technology, 021001 nanoscience & nanotechnology, 01 natural sciences, law.invention, Rubidium, 010309 optics, Frequency comb, Four-wave mixing, chemistry, law, 0103 physical sciences, Atom, Physics::Atomic Physics, Atomic physics, 0210 nano-technology, Quantum cascade laser, Quantum, Astrophysics::Galaxy Astrophysics
Abstract

We are developing an atom-based platform for investigating the non-classical nature of mid infrared light emitted by Quantum Cascade Laser frequency combs, based on four wave mixing 87Rb.

Published
2020
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