Dr. Antonin Billaud Profile

Dr. Antonin Billaud

at CAILabs

SPIE Involvement:

Author

Publications (14)

Proceedings Article | 13 March 2024 Presentation

TILBA-ATMO: a 45-mode MPLC-based turbulence mitigation solution for optical ground stations for direct-to-earth LEO-to-ground laser communications

Antonin Billaud, Cédric Dautancourt, Tanguy Luttman, Claire Autebert, Thibault Michel, Pu Jian, Olivier Pinel, Guillaume Labroille

Proceedings Volume 12877, 128771D (2024) https://doi.org/10.1117/12.3003673

KEYWORDS: Laser communications, Turbulence, Single mode fibers, Data communications, Telescopes, Satellites, Photonics, Photonic integrated circuits, Modulation, Modal decomposition

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Proceedings Article | 23 October 2023 Presentation + Paper

Spatial channel multiplexing emulation with a 21-channel multiplane plane light converter

David Benton, Antonin Billaud, Andrew Ellis, Yiming Li, Zhouyi Hu

Proceedings Volume 12738, 127380A (2023) https://doi.org/10.1117/12.2678889

KEYWORDS: Turbulence, Signal intensity, Digital micromirror devices, Multiplexing, Wavefronts, Atmospheric turbulence, Free space, Receivers, Crosstalk, Adaptive optics

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Proceedings Article | 12 July 2023 Open Access

10 Gbps free space optical communication link using Multi-Plane Light Conversion turbulence mitigation

Antonin Billaud, Adeline Orieux, Fausto Gomez, Thibault Michel, Stephane Bernard, David Allioux, Olivier Pinel

Proceedings Volume 12777, 127774R (2023) https://doi.org/10.1117/12.2690885

KEYWORDS: Turbulence, Telescopes, Single mode fibers, Receivers, Free space optics, Astronomical imaging, Polarization, Modulation, Point spread functions, Free space optical communications

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Proceedings Article | 17 March 2023 Presentation

100 Gbps and 45-mode multi-plane-light-conversion-based turbulence mitigation for free space optical communication

Thibault Michel, Adeline Orieux, Cédric Dautancourt, Tanguy Luttman, Stephane Bernard, Claire Autebert, Louis Andreoli, Pu Jian, David Allioux, Olivier Pinel, Guillaume Labroille, Antonin Billaud

Proceedings Volume 12413, 1241310 (2023) https://doi.org/10.1117/12.2654642

KEYWORDS: Turbulence, Free space optical communications, Telecommunications, Photonic integrated circuits, Laser communications, Single mode fibers, Laser development, Laser applications, Integrated optics, Control systems

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Proceedings Article | 1 April 2022 Presentation

Complex glass cutting allowed thanks to a reflectively generated Bessel beam with homogeneous energy distribution over the propagation axis

Siddharth Sivankutty, Antonin Billaud, Julien Bayol, Gwenn Pallier, Pu Jian, Guillaume Labroille

Proceedings Volume PC11991, PC119910R (2022) https://doi.org/10.1117/12.2626595

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Proceedings Article | 1 April 2022 Presentation

Free space optical link demonstration using multi-plane light conversion turbulence mitigation

Antonin Billaud, Adeline Orieux, Fausto Gomez Agis, Kassem Saab, Stephane Bernard, Thibault Michel, David Allioux, Olivier Pinel, Guillaume Labroille

Proceedings Volume PC11993, PC1199302 (2022) https://doi.org/10.1117/12.2611093

KEYWORDS: Turbulence, Single mode fibers, Free space optics, Photonic integrated circuits, Free space, Integrated optics, Adaptive optics, Optical fibers, Light wave propagation, Gaussian beams

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Proceedings Article | 1 April 2022 Presentation

On chip coherent phase and intensity control for atmospheric turbulence mitigation with multi-plane light conversion

Antonin Billaud, Fausto Gomez Agis, Kassem Saab, Matthieu Meunier, David Allioux, Olivier Pinel, Guillaume Labroille

Proceedings Volume PC11993, PC1199303 (2022) https://doi.org/10.1117/12.2611380

KEYWORDS: Atmospheric turbulence, Photonic integrated circuits, Phase shifts, Feedback control, Turbulence, Phase interferometry, Lithium, Interferometers, Control systems

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Proceedings Article | 12 September 2021 Presentation + Paper

Coherent combining of 7 fiber lasers using a multi-plane light converter device

A. Limery, L. Lombard, P. Bourdon, A. Billaud, O. Pinel, G. Labroille, T. Le Guennic, P. Jian

Proceedings Volume 11867, 118670H (2021) https://doi.org/10.1117/12.2599923

KEYWORDS: Gaussian beams, Fiber lasers, Laser beam propagation, Turbulence, Fiber amplifiers, Optical simulations, Atmospheric turbulence, Coherent beam combination, Optical multiplexing

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Proceedings Article | 20 September 2020 Presentation

Mode collection efficiency of atmospheric turbulence mitigation technique based on multiplane light conversion

Antonin Billaud, Thomas Giroux, Matthieu Meunier, David Allioux, Pu Jian, Guillaume Labroille

Proceedings Volume 11532, 115320B (2020) https://doi.org/10.1117/12.2574037

KEYWORDS: Single mode fibers, Atmospheric turbulence, Networks, Wavefronts, Turbulence, Laser communications, Commercial off the shelf technology, Optical fibers, Optical networks, Free space optical communications

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Proceedings Article | 20 September 2020 Presentation

Optimal coherent beam combining based on Multi-Plane Light Conversion for laser directed energy weapons and countermeasure

Antonin Billaud, Tangi Le Guennic, David Allioux, Pu Jian, Olivier Pinel, Guillaume Labroille

Proceedings Volume 11539, 115390F (2020) https://doi.org/10.1117/12.2573436

KEYWORDS: Laser countermeasures, Laser energy, Directed energy weapons, Fiber lasers, Missiles, Solid state lasers, Solid state physics, Free space optics, Chemical elements, Optical fibers

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Proceedings Article | 9 March 2020 Presentation + Paper

Alternative passive fiber coupling system based on multi-plane light conversion for satellite-to-ground communications

Ramon Mata Calvo, David Allioux, Andrew Reeves, Antonin Billaud, Juraj Poliak, Olivier Pinel, Helawae Friew Kelemu, Guillaume Labroille, Mathias Richerzhagen

Proceedings Volume 11272, 112720Q (2020) https://doi.org/10.1117/12.2546076

KEYWORDS: Adaptive optics, Scintillation, Single mode fibers, Satellites, Turbulence, Telecommunications, Fiber couplers, Satellite communications, Telescopes, Atmospheric turbulence

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Global coverage of internet access is essential for digitalization in society, becoming a disruptive technology in industry, education or political participation for example. Satellite communications is a complementary approach to the terrestrial fiber network, which can provide world-wide coverage with few satellites in geostationary orbit or with low-earth-orbit constellations. Optical wavelengths offer multiple THz of available spectrum that can be used to connect satellites to the ground network with high-throughput links, solving the radiofrequency bandwidth bottleneck, without regulations. Cloud covereage and atmospheric turbulence are the main challenge in guaranteeing the same availability as in terrestrial fiber-based systems. While the former can be addressed by site diversity, for the latter, other mitigation strategies are required. Adaptive optics is a common approach to correct for atmospheric phase distortions and ensure stable fiber coupling. However, this approach requires a relatively complex active setup and therefore a collaboration between DLR Institute of Communications and Navigation and Cailabs has been formed to investigate alternative passive solutions for low-complexity ground stations. Coupling into multimode fibers does not require adaptive optics due to the large fiber core, however the coupled signal is distributed into multiple fiber-modes and is therefore incompatible with standard telecommunications components. Cailabs Multi-Plane Light Conversion (MPLC) technology overcomes this issue, selectively demultiplexing the fibermodes into single-mode fibers. Here, DLR’s adaptive optics system and the MPLC technology in a turbulence-relevant environment for GEO communications are compared, investigating the advantages of the MPLC approach for compensating strong turbulence. This paper presents an overview of the measurement setup and analyzes the single-mode fibers outputs of the spatial demultiplexer and the measured phase-distortions from a wavefront sensor.

Proceedings Article | 9 March 2020 Presentation

High quality Bessel beam generation through reflective axicon for femtosecond laser glass microprocessing (Conference Presentation)

Antonin Billaud, Maik Steinbach, Patrick Taschner, Arndt Hohnholz, Gwenn Pallier, Sami Laroui, Pu Jian, Olivier Pinel, Jürgen Koch, Guillaume Labroille

Proceedings Volume 11267, 112670C (2020) https://doi.org/10.1117/12.2545860

KEYWORDS: Bessel beams, Glasses, Reflectivity, Axicons, Femtosecond phenomena, Beam shaping, Pulsed laser operation, Laser ablation, Laser drilling, Dispersion

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Proceedings Article | 9 March 2020 Presentation

Optimal coherent beam combining based on Multi-Plane Light Conversion for high throughput optical feeder links (Conference Presentation)

Antonin Billaud, Fausto Gomez, David Allioux, Nicolas Laurenchet, Pu Jian, Olivier Pinel, Guillaume Labroille

Proceedings Volume 11272, 112720Y (2020) https://doi.org/10.1117/12.2545634

KEYWORDS: Free space optics, Radio optics, Free space, Satellite communications, Optical communications, Optical fibers, Multiplexing, Lenses, Multiplexers, Gaussian beams

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Proceedings Article | 9 March 2020 Presentation

Fully reflective annular laser beam shaping for 1.03µm ultra-high throughput laser beam welding (Conference Presentation)

Matthieu Meunier, David Lemaitre, Antonin Billaud, Antoine Queffelec, Romain Cornee, Gwenn Pallier, Olivier Pinel, Eric Laurensot, Guillaume Labroille

Proceedings Volume 11273, 112730H (2020) https://doi.org/10.1117/12.2545597

KEYWORDS: Reflectivity, Beam shaping, Thermography, Laser applications, Laser welding, Aerospace engineering, High power lasers, Laser development, System integration, Lasers

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Showing 5 of 14 publications

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