Dr. Romain Cotillard Profile

Dr. Romain Cotillard

at CEA

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Author

Publications (9)

Proceedings Article | 23 May 2023 Paper

High temperature annealing behavior of femtosecond written FBGs in Ge-doped fused silica optical fibers

A. Lerner, T. Blanchet, R. Cotillard, M. Sosa, N. Roussel, G. Bouwmans, G. Laffont

Proceedings Volume 12643, 1264331 (2023) https://doi.org/10.1117/12.2678399

KEYWORDS: Fiber Bragg gratings, Annealing, Silica, Optical fibers, Glasses, Femtosecond phenomena, Bragg wavelengths, Thermal stability, Quenching, Temperature metrology

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Proceedings Article | 14 March 2023 Presentation + Paper

Compact fiber optic spectrometers formed by chirped diffraction gratings inscribed with a femtosecond laser platform

Jean-Baptiste Quélène, Matilde Sosa Martí, Romain Cotillard, Guillaume Laffont

Proceedings Volume 12417, 1241708 (2023) https://doi.org/10.1117/12.2648049

KEYWORDS: Optical gratings, Fiber Bragg gratings, Spectrometers, Diffraction gratings, Femtosecond phenomena, Cameras, Fiber optics, Sensors, Antennas, Fabrication

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Proceedings Article | 17 May 2022 Presentation + Paper

Effect of radiation and temperature on high temperature resistant fiber Bragg gratings

Thomas Blanchet, Romain Cotillard, Adriana Morana, Rudy Desmarchelier, Emmanuel Marin, Youcef Ouerdane, Aziz Boukenter, Damien Fourmentel, Stéphane Bréaud, Andrei Gussarov, Christophe Destouches, Sylvain Girard, Guillaume Laffont

Proceedings Volume 12139, 1213914 (2022) https://doi.org/10.1117/12.2621473

KEYWORDS: Fiber Bragg gratings, Radiation effects, X-rays, Femtosecond phenomena, Annealing, Sensors, Refractive index, Reflectivity, Temperature sensors, Structured optical fibers

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Proceedings Article | 23 April 2017 Paper

Monitoring of single-mode fiber laser heating using Rayleigh scattering and first order fs-PbP fiber Bragg grating

Rudy Desmarchelier, Romain Cotillard, Nicolas Roussel, Steven Armiroli, Guillaume Laffont

Proceedings Volume 10323, 103238N (2017) https://doi.org/10.1117/12.2265795

KEYWORDS: Gas lasers, Annealing, Carbon monoxide, Optical fibers, Sensors, Fiber Bragg gratings, Single mode fibers, Fiber lasers, Laser scattering, Plasma

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Proceedings Article | 23 April 2017 Paper

Radiation effects on type I fiber Bragg gratings: influence of recoating

T. Blanchet, G. Laffont, R. Cotillard, E. Marin, A. Morana, A. Boukenter, Y. Ouerdane, S. Girard

Proceedings Volume 10323, 103232E (2017) https://doi.org/10.1117/12.2263290

KEYWORDS: Fiber Bragg gratings, X-rays, Coating, Temperature metrology, Radiation effects, Annealing, Temperature sensors, Tolerancing, Fiber optics sensors, Refractive index

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Proceedings Article | 2 June 2014 Paper

Distributed temperature monitoring for liquid sodium leakage detection using OFDR-based Rayleigh backscattering

E. Boldyreva, R. Cotillard, G. Laffont, P. Ferdinand, D. Cambet, J.-P. Jeannot, P. Charvet, S. Albaladéjo, G. Rodriguez

Proceedings Volume 9157, 91576N (2014) https://doi.org/10.1117/12.2059531

KEYWORDS: Sodium, Liquids, Backscatter, Optical fibers, Spatial resolution, Temperature metrology, Structured optical fibers, Refractive index, Cladding, Gold

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Proceedings Article | 2 June 2014 Paper

Regeneration of tilted fiber Bragg gratings

R. Cotillard, G. Laffont, P. Ferdinand

Proceedings Volume 9157, 91572S (2014) https://doi.org/10.1117/12.2059285

KEYWORDS: Fiber Bragg gratings, Cladding, Signal attenuation, Annealing, Optical fibers, Refractive index, Manufacturing, Sensors, Environmental sensing, Mirrors

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Proceedings Article | 20 May 2013 Paper

9000 hours-long high temperature annealing of regenerated fiber Bragg gratings

G. Laffont, R. Cotillard, P. Ferdinand

Proceedings Volume 8794, 87941X (2013) https://doi.org/10.1117/12.2025838

KEYWORDS: Fiber Bragg gratings, Annealing, Reflectivity, Temperature metrology, Sensors, Capillaries, Optical fibers, Technetium, Environmental sensing, Metrology

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Proceedings Article | 17 October 2012 Paper

Multiplexed regenerated Fiber Bragg Gratings for high temperature measurement

G. Laffont, R. Cotillard, P. Ferdinand

Proceedings Volume 8421, 842123 (2012) https://doi.org/10.1117/12.970624

KEYWORDS: Fiber Bragg gratings, Multiplexing, Temperature metrology, Calibration, Reflectivity, Transducers, Annealing, Capillaries, Metrology, Optical fibers

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Showing 5 of 9 publications

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