Explanipedia

(Sub-)millimeter Spectroscopy Instrument for the Soil Metabolite Detection Open

Daria Gudz, Françoise Binet, Ludovic Frein, Goulc’Hen Loas, Cyril Hamel , et al. · 2025

International audience

Oscillateur opto-électronique intégrant une cavité ULE asservie par « tilt-locking » Open

Brian Sinquin, Marc Vallet, Ludovic Frein · 2025

International audience

Nonlinear frequency chirps from a stabilized injected phase-modulated fiber laser loop Open

Marc Brunel, Ludovic Frein, Goulc’Hen Loas, Anthony Carré, Thomas Le Beux , et al. · 2023

A phase-modulated frequency-shifting loop is injected by a single-frequency laser at 1.5 μm. In so-called Talbot conditions, i.e., when the modulation frequency is an integer multiple of the inverse of the cavity round-trip time, the loop …

Génération de peignes de fréquence et d'impulsions dans un Oscillateur Opto-Électronique à modulation directe Open

Brian Sinquin, Goulc’Hen Loas, Steve Bouhier, Ludovic Frein, Marc Vallet , et al. · 2022

Oscillateur optoélectronique (OEO) générant des peignes de fréquences et des trains d’impulsions optiques Open

Brian Sinquin, Goulc’Hen Loas, Steve Bouhier, Ludovic Frein, Marc Vallet , et al. · 2022

Low Phase Noise Direct-Modulation Optoelectronic Oscillator Open

Brian Sinquin, Marco Romanelli, Steve Bouhier, Ludovic Frein, Mehdi Alouini , et al. · 2021

A direct-modulation OEO (DM-OEO) generating stable 10 GHz and 20 GHz signals is presented.A single loop and a dual loop approach are implemented and compared.We show an output signal of 15 dBm RF power, and a phase noise as low as -135 dBc…

Oscillateur Opto-Électronique à modulation directe de faible bruit de phase Open

Brian Sinquin, Marco Romanelli, Steve Bouhier, Ludovic Frein, Marc Vallet , et al. · 2021

International audience

INSTRUMENT DE SPECTROSCOPIE TERAHERTZ DU VOLATILOME DES MICROORGANISMES DES SOLS Open

F. Bondu, Ludovic Frein, Cyril Hamel, Anthony Carré, Guillaume Ducournau , et al. · 2021

International audience

Signaux Opto-RF très bas bruit de phase et instabilités dynamiques d’un OEO à modulation directe Open

Brian Sinquin, Steve Bouhier, Ludovic Frein, Mehdi Alouini, Marc Vallet , et al. · 2021

International audience

Réduction de la largeur de raie laser au moyen d'une boucle optoélectronique assistée par effet Brillouin Open

Gwennaël Danion, Marc Vallet, Ludovic Frein, Pascal Szriftgiser, Mehdi Alouini · 2019

Nous presentons un module de reduction de largeur de raie laser base sur une boucle a verrouillage de phase optique (OPLL) combinee a un oscillateur Brillouin. Une partie du faisceau laser est amplifiee pour pomper un resonateur Brillouin …

Characterization of a polarimetric infrared imager based on the orthogonality breaking technique Open

François Parnet, Julien Fade, Muriel Roche, Goulc’Hen Loas, Noé Ortega-Quijano , et al. · 2019

International audience

Optoelectronic nibbling of laser linewidth using a Brillouin-assisted optical phase-locked loop Open

Gwennaël Danion, Marc Vallet, Ludovic Frein, Pascal Szriftgiser, Mehdi Alouini · 2018

We demonstrate that the implementation of phase-locked loop forbidding multimode operation of a long Brillouin resonator also leads to a dramatic reduction of the optical phase noise of the pump itself. In the case of a continuous Er,Yb:gl…

Optoelectronic nibbling of laser linewidth using a Brillouin-assisted\n optical phase-locked loop Open

Gwennaël Danion, Marc Vallet, Ludovic Frein, Pascal Szriftgiser, Mehdi Alouini · 2018

We demonstrate that the implementation of phase-locked loop forbidding\nmultimode operation of a long Brillouin resonator also leads to a dramatic\nreduction of the optical phase noise of the pump itself. In the case of a\ncontinuous Er,Yb…

Dual-polarization DFB fiber lasers as optical phase-locked microwave sources in the 1-10 GHz range Open

Marie Guionie, Ludovic Frein, F. Bondu, Anthony Carré, Goulc’Hen Loas , et al. · 2018

Fully fibered microwave-optical sources at 1.5 μm are studied experimentally. It is shown that the beat note between two orthogonally polarized modes of a distributed-feedback fiber laser can be efficiently stabilized using an optical phas…

Beat note stabilization in dual-polarization DFB fiber lasers by an optical phase-locked loop Open

Marie Guionie, Ludovic Frein, Anthony Carré, Goulc’Hen Loas, F. Bondu , et al. · 2018

A fully fibered microwave-optical source at 1.5 µm is studied experimentally. It is shown that the beat note between two orthogonally polarized modes of a distributed-feedback fiber laser can be efficiently stabilized using an optical phas…

Phase-locked dual-polarization fiber lasers as compact optical-microwave sources Open

Marie Guionie, Ludovic Frein, Anthony Carré, Goulc’Hen Loas, F. Bondu , et al. · 2018

Fully fibered microwave-optical sources at 1.5 µm are studied experimentally. It is shown that the beat note between two orthogonally polarized modes of a distributed-feedback fiber laser can be efficiently stabilized using an optical phas…

Active infrared polarimetric imaging demonstrator by orthogonality breaking sensing Open

François Parnet, Julien Fade, Noé Ortega-Quijano, Goulc’Hen Loas, Ludovic Frein , et al. · 2017

We report the design of a free-space active infrared polarimetric imaging demonstrator operating at 1.55 μm and based on a non-conventional approach: the orthogonality breaking sensing technique. Relying on the illumination of a scene with…

Phase locking of dual-polarization DFB fiber lasers through pump-power modulation Open

Marie Guionie, Marc Brunel, Anthony Carré, Goulc’Hen Loas, Ludovic Frein , et al. · 2017

Polymer resonators for glucose sensing and milk sphingomyelin gel/fluid phase transition detection Open

Qingyue Li, Véronique Vié, Rigoberto Castro‐Beltrán, Hervé Lhermite, Étienne Gaviot , et al. · 2017

International audience

Démonstrateur d'imagerie polarimétrique active par brisure d'orthogonalité à 1,55 μm Open

François Parnet, Julien Fade, Noé Ortega-Quijano, Goulc’Hen Loas, Ludovic Frein , et al. · 2017

National audience

A novel deep-UV polymer for nanophotonics: structures towards cascade of serial micro-resonators for ultra-sensitive detections of glucose Open

Bruno Bêche, Rigoberto Castro‐Beltrán, Marion Specht, Qingyue Li, David Pluchon , et al. · 2016

International audience

Synthèse optique d'ondes hyperfréquences et millimétriques à très bas bruit de phase:résultats préliminaires Open

Gwennaël Danion, F. Bondu, Goulc’Hen Loas, Ludovic Frein, Cyril Hamel , et al. · 2015

Nous avons conçu et construit un système optique de synthèse d’ondes hyperfréquences, millimétriques et submillimétriques à très bas bruit de phase. Les résultats préliminaires montrent une densité spectrale de bruit de phase à 10 kHz de l…

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