Mr. Arnaud Le Kernec Profile

Arnaud Le Kernec

at Thales Alenia Space

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Author

Publications (11)

Proceedings Article | 12 July 2023 Open Access

ANAtOLIA: a mobile station for site availability characterization for optical communications links

Aziz Ziad, Christophe Giordano, Alessandro Aresta, E. Aristidi, Christophe Bailet, Filippo Berto, Chiara Bertolin, Marcel Carbillet, Stefano Cavazzani, Damien Ceus, Thibaud Charbonnel, J. Delanoe, Jacques Descloitres, Y. Fantei-Caujolle, A. Gillioen, Yenny Gonzalez-Ramos, Abdanour Irbah, Estelle Jacqmart, Arnaud Le Kernec, Olivier Liandrat, Sylvain Poulenard, J. Riedi, Nicolas Schmutz, D. Vedani, Stephane Victori

Proceedings Volume 12777, 127772M (2023) https://doi.org/10.1117/12.2689999

KEYWORDS: Clouds, Aerosols, Atmospheric particles, Equipment, Turbulence, Atmospheric optics, Environmental monitoring, Sun, Photometry, Databases

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Proceedings Article | 12 July 2023 Open Access

Experimental assessment of various optical communication chains for high-capacity optical feeder links

A. Maho, S. Levêque, A. Le Kernec, B. Benazet, A. Montmerle Bonnefois, J.-M. Conan, C. Lim, J. Montri, P. Perrault, C. Petit, B. Sorrente, L. Paillier, N. Védrenne, D. Matter, L. Pommarel, H. Lindberg, L. Francou, M. Soton

Proceedings Volume 12777, 127771C (2023) https://doi.org/10.1117/12.2689279

KEYWORDS: Free space optics, Optical transmission, Optical communications, Adaptive optics, Modulation, Channel projecting optics, Atmospheric propagation, Atmospheric optics, Turbulence, Astronomical imaging

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Proceedings Article | 30 August 2022 Poster + Paper

ANAtOLIA: a new mobile site-testing station for astronomy and optical communications

A. Ziad, C. Giordano, A. Aresta, E. Aristidi, C. Bailet, F. Berto, C. Bertolin, M. Carbillet, S. Cavazzani, D. Ceus, T. Charbonnel, J. Delanoë, J. Descloitres, Yan Fanteï-Caujolle, A. Gillioën, Y. Gonzalez-Ramos, A. Irbah, E. Jacqmart, A. Le Kernec, O. Liandrat, S. Poulenard, J. Riédi, N. Schmutz, S. Victori

Proceedings Volume 12185, 121855Z (2022) https://doi.org/10.1117/12.2629825

KEYWORDS: Optical turbulence, Weather forecasting, Clouds, Aerosols, Turbulence, Atmospheric optics, Optical communications

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Proceedings Article | 11 June 2021 Open Access

The H2020 VERTIGO project towards tbit/s optical feeder links

A. Le Kernec, L. Canuet, A. Maho, M. Sotom, D. Matter, L. Francou, J. Edmunds, M. Welch, E. Kehayas, N. Perlot, M. Krzyzek, Anagnostis Paraskevopoulos, J. Leuthold, Y. Horst, J. Bourderionnet, A. Brignon, E. Lallier, V. Billault, L. Leviandier, J.-M. Conan, N. Védrenne, C. Lim, A. Montmerle-Bonnefois, C. Petit, L. Stampoulidis, M. Fehrenz, T. Lehnigk-Emden

Proceedings Volume 11852, 1185217 (2021) https://doi.org/10.1117/12.2599229

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To concurrently cope with the scarcity of RF frequency bands, the growing capacity demand and the required lower cost of the ground segment, Very High Throughput Satellites systems must rely on new technical solutions. Optical feeder links are considered as a promising alternative to surpass classical RF technology, offering assets inherent to optical technologies (large bandwidth, no frequency regulation, low beam divergence, components availability). Nevertheless the potential of this technology shall not conceal the remaining challenges to be overcome to make it relevant for operational missions : clouds, turbulence, power generation and high efficiency modulations. VERTIGO (Very High Throughput Satellite Ground Optical Link) is a 3-year H2020 project funded by the European commission and started mid-2019 focusing on the optical link itself regardless of site diversity aspect and aiming at demonstrating in a ground demonstration required technologies to implement very high capacity optical feeder links. In particular, VERTIGO is built on 3 pillars each addressing a key issue for the implementation of optical feerder links: 1) Throughput increase through the use of advanced schemes with high spectral and power efficiency compared to current modulations used in space, as well as RF-over-Fiber approach. 2) High optical power generation to close the demanding link budgets by developing on-board and ground means to raise the transmitted optical power, not only based on amplifier power increase, but also on incoherent/coherent power combining. 3) Opto-mechanical and digital techniques for the mitigation of atmospheric propagation impairments, to make full use of throughput and power increases. Several demonstrations in-flight or on-ground already demonstrated separately key aspects (atmospheric propagation and impairments mitigation techniques, modulation format, high power…), for the implementation of optical (feeder) links. These aspects are closely linked since the solutions to each of them are necessary but not sufficient to allow for high throughput transmissions. VERTIGO concept is to address each key issue with at least one solution and to combine them in an unprecedented manner. To reach these objectives, VERTIGO will lean on a highly skilled consortium composed of : CREONIC, ETH Zürich, Fraunhofer HHI, Gooch and Housego, Leo Space Photonics RD, ONERA, Thales Research and Technology, Thales Alenia Space in France and Switzerland. This paper will present the VERTIGO project and its status.

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Proceedings Article | 12 July 2019 Open Access

Assessment of the effective performance of DPSK vs. OOK in satellite-based optical communications

A. Maho, M. Faugeron, A. Le Kernec, K. Elayoubi, M. Sotom

Proceedings Volume 11180, 111805T (2019) https://doi.org/10.1117/12.2536128

KEYWORDS: Free space optics, Satellites, Receivers, Satellite communications, Optical filters, Optical communications, Doppler effect, Transmitters, Modulation, Telecommunications

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Proceedings Article | 12 July 2019 Open Access

High-performance DFB laser module for space applications: the FP7 HiPPO achievements from chip fabrication to system validation

M. Faugeron, B. Benazet, A. Maho, A. Le Kernec, M. Sotom, F. Van Dijk, J. Le Goëc, O. Parillaud, L. Stampoulidis, P. Henderson, S. Snowden, E. Kehayas

Proceedings Volume 11180, 111803J (2019) https://doi.org/10.1117/12.2536046

KEYWORDS: Laser applications, RF photonics, Free space optics, Laser development, Free space optical communications, Frequency conversion, High power lasers, Telecommunications, Satellites, Laser damage threshold

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Proceedings Article | 20 November 2017 Open Access

Space evaluation of optical modulators for microwave photonic on-board applications

A. Le Kernec, M. Sotom, B. Bénazet, J. Barbero, L. Peñate, M. Maignan, I. Esquivias, F. Lopez, N. Karafolas

Proceedings Volume 10565, 105652I (2017) https://doi.org/10.1117/12.2309238

KEYWORDS: Modulators, Semiconductors, Electrooptic modulators, Optical modulators, Lithium niobate, Electro optics, Astronomical imaging, Modulation, Electro optic polymers, Microwave photonics

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Proceedings Article | 17 November 2017 Open Access

Optimization and evaluation in space conditions of multi-ghz optical modulators

Henri Porte, Arnaud Le Kernec, Laura Peñate Quesada, Ignacio Esquivias, Houda Brahimi, Juan Barbero Gonzalez, Alexandre Mottet, Michel Sotom

Proceedings Volume 10563, 105631P (2017) https://doi.org/10.1117/12.2304143

KEYWORDS: Modulators, Optical modulators, Waveguides, Microwave radiation, Phased array optics, Electrodes, Astronomical imaging, Electro optics, Microwave photonics, Signal attenuation

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Proceedings Article | 17 November 2017 Open Access

The European project Hippo high-power photonics for satellite laser communications and on-board optical processing

E. Kehayas, L. Stampoulidis, P. Henderson, Andrew Robertson, F. Van Dijk, M. Achouche, A. Le Kernec, M. Sotom, F. Schuberts, T. Brabant

Proceedings Volume 10563, 105635C (2017) https://doi.org/10.1117/12.2304118

KEYWORDS: Photonics, Optical amplifiers, High power fiber amplifiers, High power lasers, Structured optical fibers, Satellites, Satellite communications, Astronomical imaging, Laser communications, Fiber amplifiers

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Proceedings Article | 17 November 2017 Open Access

Reconfigurable microwave photonic repeater for broadband telecom missions: concepts and technologies

M. Aveline, M. Sotom, R. Barbaste, B. Benazet, A. Le Kernec, J. Magnaval, P. Ginestet, O. Navasquillo, M. Piqueras

Proceedings Volume 10563, 105633M (2017) https://doi.org/10.1117/12.2304115

KEYWORDS: Microwave photonics, Photonics, Microwave radiation, Electro optics, Ka band, Satellites, Polarization, Astronomical imaging, Receivers, Wavelength division multiplexing

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Proceedings Article | 25 September 2017 Open Access

Flexible photonic payload for broadband telecom satellites: from concepts to system demonstrators

M. Sotom, M. Aveline, R. Barbaste, B. Benazet, A. Le Kernec, J. Magnaval, M. Picq

Proceedings Volume 10562, 105621Y (2017) https://doi.org/10.1117/12.2296157

KEYWORDS: Electro optics, Satellites, Ka band, Receivers, Astronomical imaging, Modulators, Switches, Channel projecting optics, RF photonics, Optical switching

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