Dr. Alessandro Tonello Profile

Dr. Alessandro Tonello

at XLIM Institut de Recherche

SPIE Involvement:

Author

Publications (16)

Proceedings Article | 12 March 2024 Presentation + Paper

Wave thermalization sets high-power limitation to spatial beam self-cleaning in multimode optical fibers

Fabio Mangini, Mario Ferraro, Alessandro Tonello, Vincent Couderc, Stefan Wabnitz

Proceedings Volume 12871, 128710H (2024) https://doi.org/10.1117/12.3007907

KEYWORDS: GRIN lenses, Spatial light modulators, Optical fibers, Multimode fibers, Thermodynamics, Picosecond phenomena, Cameras, Photons, Near field, Holography

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Proceedings Article | 15 March 2023 Presentation + Paper

Spatial beam self-cleaning in multimode fibers: the role of light polarization

Mario Ferraro, Fabio Mangini, Raphaël Jauberteau, Mario Zitelli, Yifan Sun, Pedro Parra-Rivas, Katarzyna Krupa, Alessandro Tonello, Vincent Couderc, Stefan Wabnitz

Proceedings Volume 12407, 124070E (2023) https://doi.org/10.1117/12.2652260

KEYWORDS: Polarization, Picosecond phenomena, Multimode fibers, Thermodynamics, Pulse signals, Femtosecond phenomena, GRIN lenses, Femtosecond pulse shaping, Depolarization, Polarized light

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Proceedings Article | 14 March 2023 Presentation + Paper

Large band multiphoton microendoscope with single-core standard graded-index multimode fiber based on spatial beam self-cleaning

Tigran Mansuryan, Nour Tabcheh, Marc Fabert, Katarzyna Krupa, Raphael Jauberteau, Alessandro Tonello, Claire Lefort, Mario Ferraro, Fabio Mangini, Mario Zitelli, Massimiliano Papi, Ivo Boskoski, Stefan Wabnitz, Vincent Couderc

Proceedings Volume 12356, 123560B (2023) https://doi.org/10.1117/12.2652346

KEYWORDS: Multimode fibers, Fluorescence, Fluorescence imaging, Endoscopy, GRIN lenses, Spatial resolution, Optical fibers, Autofluorescence, Biological samples, Beam diameter

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Proceedings Article | 26 May 2022 Presentation + Paper

Exploiting the geometry of optical fibers for igniting helical-shape plasma filaments

Mario Ferraro, Fabio Mangini, Mario Zitelli, Alioune Niang, Rocco Crescenzi, Tigran Mansuryan, Alessandro Tonello, Vincent Couderc, Antonio De Luca, Sergey Babin, Fabrizio Frezza, Stefan Wabnitz

Proceedings Volume 12143, 1214302 (2022) https://doi.org/10.1117/12.2624477

KEYWORDS: Plasma, Cladding, Optical fibers, Interfaces, Refractive index, Luminescence, Visualization, Microscopes, Glasses, Laser beam propagation

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Proceedings Article | 26 May 2022 Presentation + Paper

Towards a new understanding of optical poling efficiency in multimode fibers

Maxime Jonard, Maggy Colas, Yann Leventoux, Tigran Mansuryan, Julie Cornette, Alessandro Tonello, Stefan Wabnitz, Mario Zitelli, Fabio Mangini, Mario Ferraro, Yifan Sun, Sébastien Février, Jean-René Duclère, Vincent Couderc, Claire Lefort

Proceedings Volume 12143, 1214303 (2022) https://doi.org/10.1117/12.2621278

KEYWORDS: Multimode fibers, Optical fibers, Raman spectroscopy, Microscopes, GRIN lenses, Structured optical fibers, Nonlinear optics, Multiphoton microscopy, Germanium

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Proceedings Article | 25 May 2022 Presentation + Paper

Laser-induced damages in silica multimode optical fibers

Mario Ferraro, Fabio Mangini, Yifan Sun, Mario Zitelli, Rocco Crescenzi, Alioune Niang, Maria Caterina Crocco, Vincenzo Formoso, Raffaele Agostino, Riccardo Barberi, Antonio De Luca, Alessandro Tonello, Sergey Babin, Vincent Couderc, Stefan Wabnitz

Proceedings Volume 12142, 121420R (2022) https://doi.org/10.1117/12.2623746

KEYWORDS: Refractive index, Optical fibers, Multimode fibers, Fiber lasers, Microscopes, Silica, Optical microscopy, Laser induced damage, Transmittance, Solitons

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Proceedings Article | 18 April 2021 Presentation + Paper

Versatile supercontinuum generation by using χ(2) and χ(3) nonlinearities in PPLN crystal for direct multiplex CARS measurement

Sahar Wehbi, Tigran Mansuryan, Raphael Jauberteau, Alessandro Tonello, Katarzyna Krupa, Stefan Wabnitz, Hideaki Kano, Philippe Leproux, Sebastien Vergnole, Vincent Couderc

Proceedings Volume 11770, 1177017 (2021) https://doi.org/10.1117/12.2589155

KEYWORDS: Crystals, Supercontinuum generation, Nonlinear crystals, CARS tomography, Structured optical fibers, Optical fibers, Laser crystals, Infrared radiation, Visible radiation, Ultraviolet radiation

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Proceedings Article | 5 March 2021 Presentation + Paper

Spatial beam nonlinear control with multimode GRIN fiber amplifiers

A. Niang, M. Jima, D. Modotto, F. Mangini, A. Tonello, U. Minoni, M. Fabert, M. Zitelli, V. Couderc, S. Wabnitz

Proceedings Volume 11665, 116650L (2021) https://doi.org/10.1117/12.2578927

KEYWORDS: Multimode fibers, GRIN lenses, Optical fibers, Optical amplifiers, Fiber amplifiers, Supercontinuum generation, Raman spectroscopy, Nonlinear response, Nonlinear optics, Mid-IR

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Proceedings Article | 5 March 2021 Presentation + Paper

Spatiotemporal guided bullets in multimode fiber

M. Zitelli, M. Ferraro, F. Mangini, L. Leggio, D. Kharenko, A. Niang, A. Tonello, V. Couderc, T. Hansson, S. Wabnitz

Proceedings Volume 11670, 1167018 (2021) https://doi.org/10.1117/12.2578222

KEYWORDS: Multimode fibers, Solitons, Femtosecond phenomena, Waveguides, Visualization, Ultrafast phenomena, Raman spectroscopy, Optical fibers, Nonlinear optics, Mode locking

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Proceedings Article | 26 January 2018 Presentation + Paper

Nonlinear dynamics in multimode optical fibers

Stefan Wabnitz, Alessandro Tonello, Vincent Couderc, Daniele Modotto, Alain Barthélémy, Guy Millot, Katarzyna Krupa

Proceedings Volume 10540, 105402B (2018) https://doi.org/10.1117/12.2287874

KEYWORDS: GRIN lenses, Multimode fibers, Optical fibers, Refractive index, Fiber lasers, Light wave propagation, Dispersion, Nonlinear dynamics, Medical research, Picosecond phenomena

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Proceedings Article | 20 November 2017 Open Access

How nonlinear optics can merge interferometry for high resolution imaging

D. Ceus, F. Reynaud, A. Tonello, L. Delage, L. Grossard

Proceedings Volume 10565, 105652H (2017) https://doi.org/10.1117/12.2309204

KEYWORDS: Interferometers, Infrared radiation, Interferometry, Space telescopes, Telescopes, Visibility, Visible radiation, Upconversion, Stars, Infrared imaging

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Proceedings Article | 4 March 2016 Paper

All-normal dispersion supercontinuum generation in the near-infrared by Raman conversion in standard optical fiber

Christophe Louot, Erwan Capitaine, Badr Shalaby, Katarzyna Krupa, Alessandro Tonello, Dominique Pagnoux, Claire Lefort, Philippe Leproux, Vincent Couderc

Proceedings Volume 9731, 97310M (2016) https://doi.org/10.1117/12.2208580

KEYWORDS: Raman spectroscopy, Supercontinuum generation, Optical fibers, Photonic crystal fibers, Nonlinear optics, Raman scattering, Spectroscopy, Polarization, Fiber lasers, Prisms, Wave plates, Picosecond phenomena

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Proceedings Article | 19 October 2012 Paper

A novel electro-optical pump-probe system for bioelectromagnetic investigations

Annalisa De Angelis, Vincent Couderc, Philippe Leproux, Alexis Labruyère, Alessandro Tonello, Saad El Amari, Delia Arnaud-Cormos, Philippe Leveque

Proceedings Volume 8487, 84870M (2012) https://doi.org/10.1117/12.928978

KEYWORDS: Electro optical systems, Electro optics, Picosecond phenomena, Wave propagation, Laser sources, Photonic crystal fibers, Semiconductor lasers, Semiconductors, Crystals, Pulse generators

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In the area of bioelectromagnetic studies there is a growing interest to understand the mechanisms leading to nanosecond electric fields induced electroporation. Real-time imaging techniques at molecular level could probably bring further advances on how electric fields interact with living cells. However the investigations are limited by the present-day lack of these kinds of advanced instrumentations. In this context, we present an innovative electro-optical pump-probe system. The aim of our project is to provide a performing and compact device for electrical stimulation and multiplex Coherent anti-Stokes Raman Scattering (M-CARS) imaging of biological cells at once. The system consists of a 1064 nm sub-nanosecond laser source providing both a monochromatic pump and a polychromatic Stokes optical beam used in a CARS process, as well as the trigger beam for the optoelectronic switching-based electrical pulse generator. The polychromatic Stokes beam (from 600 to 1700 nm) results from a supercontinuum generation in a photonic crystal fiber (PCF). A detailed spectro-temporal characterization of such a broadband spectrum shows the impact of the nonlinear propagation in the fiber on the Stokes wave. Despite the temporal distortions observable on Stokes pulse profiles, their spectral synchronization with the pump pulse remains possible and efficient in the interesting region between 1100 nm and 1700 nm. The electrical stimulation device consists of a customized generator combining microstrip-line technology and laser-triggered photoconductive semiconductor switches. Our experimental characterization highlights the capability for such a generator to control the main pulse parameters (profile, amplitude and duration) and to be easily synchronized with the imaging system. We finally test and calibrate the system by means of a KDP crystal. The preliminary results suggest that this electro-optical system provides a suitable tool for real-time investigation of bioelectromagnetic interactions in the nanosecond and sub-nanosecond regime.

Proceedings Article | 14 May 2010 Paper

Adjustable supercontinuum laser source with low coherence length and low timing jitter

Marco Andreana, Anthony Bertrand, Yves Hernandez, Philippe Leproux, Vincent Couderc, Stéphane Hilaire, Guillaume Huss, Domenico Giannone, Alessandro Tonello, Alexis Labruyère, Nelly Rongeat, Philippe Nérin

Proceedings Volume 7714, 771404 (2010) https://doi.org/10.1117/12.854237

KEYWORDS: Picosecond phenomena, Micro optical fluidics, Semiconductor lasers, Laser sources, Pulsed laser operation, Modulation, Fiber lasers, Amplifiers, Infrared radiation, Diodes

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Proceedings Article | 13 April 2007 Paper

Experiment and theory of tunable broadband parametric gain in a photonic crystal fiber

S. Wabnitz, A. Tonello, S. Pitois, G. Millot, T. Martynkien, W. Urbańczyk, J. Wójcik, A. Locatelli, M. Conforti, C. De Angelis

Proceedings Volume 6612, 66120D (2007) https://doi.org/10.1117/12.740162

KEYWORDS: Dispersion, Polarization, Birefringence, Terahertz radiation, Scattering, Four wave mixing, Raman spectroscopy, Photonic crystal fibers, Modulation, Wave propagation

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Proceedings Article | 13 October 2005 Paper

Parametric and Raman amplification in photonic crystal fiber

S. Wabnitz, G. Millot, S. Pitois, A. Tonello, E. Polyakov

Proceedings Volume 5950, 59500M (2005) https://doi.org/10.1117/12.620669

KEYWORDS: Dispersion, Birefringence, Polarization, Raman spectroscopy, Numerical simulations, Terahertz radiation, Photonic crystal fibers, Modulation, Raman scattering, Phase matching

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Showing 5 of 16 publications

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