Dr. Romain Dauliat Profile

Dr. Romain Dauliat

Post Doc at XLIM

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Author

Publications (22)

Proceedings Article | 13 March 2024 Poster

High power diffraction-limited fully aperiodic large pitch fiber amplifier for UV laser light

A. Chervet, B. Leconte, R. Dauliat, A. Guillossou, J. Didierjean, K. Wondraczek, R. Jamier, P. Roy

Proceedings Volume PC12865, PC128650R (2024) https://doi.org/10.1117/12.3001608

KEYWORDS: Ultraviolet radiation, Fiber lasers, Fiber amplifiers, Pulse signals, Laser development, Design and modelling, Third harmonic generation, Structured optical fibers, Pulsed laser operation, Monochromatic aberrations

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Proceedings Article | 13 March 2024 Presentation

55 µm core ytterbium-free erbium-doped VLMA fiber manufactured by REPUSIL technology

Baptiste Leconte, Philippe Roy, Romain Dauliat, Raphaël Jamier, Valérian Freysz, Sébastien Vidal, Marc Castaing, Sébastien Février, Yann Leventoux, Katrin Wondraczek, Sébastien Vergnole

Proceedings Volume PC12865, PC128650L (2024) https://doi.org/10.1117/12.3001612

KEYWORDS: Manufacturing, Ions, Ytterbium, Solubility, Sintering, Silica, Refractive index, Oscillators, Optical communications, Matrices

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Proceedings Article | 23 May 2023 Paper

Multicore fiber sensors for strain measurement towards traffic monitoring

Arturo Sanchez-Gonzalez, Javier Pradas, Iñigo Corera, Mikel Bravo, Daniel Leandro, Romain Dauliat, Raphael Jamier, Philippe Roy, Rosa A. Perez-Herrera, Manuel Lopez-Amo

Proceedings Volume 12643, 126430K (2023) https://doi.org/10.1117/12.2678405

KEYWORDS: Sensors, Multicore fiber, Fiber optics sensors, Spectral response, Single mode fibers

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Proceedings Article | 9 March 2023 Presentation

MW-class femtosecond Er-doped tapered fiber amplifier

Geoffroy Granger, Romain Dauliat, Benoît Debord, Yann Leventoux, Idris Tiliouine, Baptiste Leconte, Anka Schwuchow, Katrin Wondraczek, Fetah Benabid, Frédéric Gérôme, Raphael Jamier, Philippe Roy, Sebastien Fevrier

Proceedings Volume 12400, 124001B (2023) https://doi.org/10.1117/12.2650064

KEYWORDS: Fiber amplifiers, Femtosecond phenomena, Amplifiers, Fabrication, Ultrafast phenomena, Microscopy, Diffraction

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Proceedings Article | 4 March 2022 Presentation

Investigation of TMI in Yb-doped fully-aperiodic large-pitch-fibers using spatially and temporally resolved imaging

Simon Christensen, Baptiste Leconte, Marie-Alicia Malleville, Romain Dauliat, Raphaël Jamier, Mattia Michieletto, Mette Johansen, Jesper Lægsgaard, Philippe Roy

Proceedings Volume PC11981, PC119810L (2022) https://doi.org/10.1117/12.2614745

KEYWORDS: Amplifiers, Modeling, Fiber amplifiers

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Proceedings Article | 5 March 2021 Presentation + Paper

Few-cycle all-fiber temporally coherent supercontinuum sources

Azahara Almagro-Ruiz, Salvador Torres-Peiró, Héctor Muñoz-Marco, Romain Dauliat, Raphael Jamier, Rosa Romero, Paulo Guerreiro, Marina Cunquero, Gustavo Castro, Pablo Loza-Álvarez, Helder Crespo, Philippe Roy, Pere Pérez-Millán

Proceedings Volume 11676, 116760M (2021) https://doi.org/10.1117/12.2577641

KEYWORDS: Supercontinuum sources, Dispersion, Ytterbium, Temporal coherence, Second-harmonic generation, Photonic crystal fibers, Modulation, Mode locking, Microscopy, Luminescence

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Proceedings Article | 14 April 2020 Presentation + Paper

Tunable fiber laser concepts in the 2µm spectral range for tunable dual wavelength emission

Tobias Tiess, Alexander Hartung, Martin Becker, Manfred Rothhardt, Romain Dauliat, Baptiste Leconte, Georges Humbert, Philippe Roy, Matthias Jäger

Proceedings Volume 11357, 1135714 (2020) https://doi.org/10.1117/12.2559948

KEYWORDS: Fiber lasers, Fiber Bragg gratings, Four wave mixing, Terahertz radiation, Q switching, Bragg cells, Optical amplifiers, Thulium, Tunable lasers, Fiber amplifiers

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Proceedings Article | 21 February 2020 Presentation + Paper

High peak power pulsed fiber laser with high efficiency based on an ytterbium doped powder sinter fiber

M. Chenou, A. Mugnier, P. Mouchel, C. Canal, G. Canat, R. Dauliat, B. Leconte, R. Jamier, P. Roy

Proceedings Volume 11260, 112601Z (2020) https://doi.org/10.1117/12.2546351

KEYWORDS: Ytterbium, Fiber lasers, Pulsed fiber lasers, Amplifiers, Raman scattering

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Proceedings Article | 14 May 2019 Presentation

Quantum metrology for fiber laser applications (Conference Presentation)

Laurent Labonté, Florent Mazeas, Mattis Reimer, Rachel Cannon, Elie Gouzien, Djeylan Aktas, Florian Kaiser, Romain Dauliat, Philippe Roy, Raphael Jamier, Sébastien Tanzilli

Proceedings Volume 11029, 110290P (2019) https://doi.org/10.1117/12.2524879

KEYWORDS: Fiber lasers, Metrology, Dispersion, Telecommunications, Biology, Medicine, Optical properties, Interferometers, Optical fibers, Optical engineering

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Proceedings Article | 13 March 2019 Presentation

Thermally resilient depressed-index core fully-aperiodic-large-pitch fiber for high average power operation (Conference Presentation)

Baptiste Leconte, Marie-Alicia Malleville, Romain Dauliat, Remi Du Jeu, Raphaël Jamier, Anka Schwuchow, Kay Schuster, Florent Mazeas, Laurent Labonté, Sébastien Tanzilli, Philippe Roy

Proceedings Volume 10897, 1089724 (2019) https://doi.org/10.1117/12.2507552

KEYWORDS: Fiber lasers, Photonic crystal fibers, Fiber amplifiers, Laser damage threshold, Laser development, Laser applications, Manufacturing, Refractive index, Cladding, Amplifiers

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Proceedings Article | 4 March 2019 Presentation

Burn-in testing in high-power fully-aperiodic large-pitch-fiber amplifiers (Conference Presentation)

Marie-Alicia Malleville, Baptiste Leconte, William Renard, Romain Dauliat, Rémi Du Jeu, Raphaël Jamier, Anka Schwuchow, Kay Schuster, Philippe Roy

Proceedings Volume 10897, 1089705 (2019) https://doi.org/10.1117/12.2508203

KEYWORDS: Optical amplifiers, High power fiber amplifiers, Fiber lasers, Picosecond phenomena, Laser beam propagation, Solids, Cladding, Diodes

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Proceedings Article | 9 May 2018 Paper

Synchronous interferometric broadband measurement of dispersion applied to manufacturing optimization of microstructured optical fibers

H. Muñoz-Marco, J. Abreu-Afonso, V. Otgon, R. Dauliat, R. Jamier, P. Roy, P. Pérez-Millán

Proceedings Volume 10681, 1068115 (2018) https://doi.org/10.1117/12.2317052

KEYWORDS: Dispersion, Interferometry, Supercontinuum generation, Structured optical fibers, Supercontinuum sources, Optics manufacturing, Interferometers

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Supercontinuum (SC) sources offer very significant advantages for imaging and characterization of materials: full VIS-NIR spectrum availability, high spectral power density, reduced temporal coherence, among others. Certain applications require a very accurately customized emission spectrum, which in turn requires reliable tools to measure the dispersion spectra of the microstructured optical fiber of the SC source with very high spectral resolution and very short acquisition time. This measurement to be done ideally on the fly, while manufacturing the fiber, in order to fine tune the drawing variables to match the aimed dispersion profile in real time. In this work we present an interferometric method to measure chromatic dispersion using a pulsed FYLA SCT1000 supercontinuum. Very high-resolution dispersion measurement is obtained by optimization of the visibility of interferometric fringes, which is achieved by a fast synchronization of pulses overlapping.

FYLA SCT1000 Supercontinuum offers a very broadband emission with SPD close to 1 mW/nm, consisting of a train of white pulses of few ps timewidth, trigger output for synchronized measurements and very stable emission, with full spectrum average power stability < 0.5% and peak to peak stability < 1% in VIS region and < 0.6% in NIR region (stabilities refer to standard deviation over mean value). The sample to measure, which can be an optical fiber or any photonic device, is placed in one of the arms of a Michelson interferometer. Interferences obtained with different displacements give values of dispersion at different wavelengths. The standard way is to use a lamp or a SLED at each band [1,2]. This makes the measurement long and tedious. Lamps or SLEDs can be replaced by a single FYLA SCT1000 to obtain the dispersion curve in a fast and very robust way. Since the source is pulsed with a fixed rep rate, delay can be easily controlled to overlap properly light from arms of the interferometer. With a single source, the complete dispersion curve is obtained with resolution below 1 nm. In this work this synchronous interferometric method to measure dispersion is used to optimize the design and manufacture of microstructured optical fibers through an iterative protocol implemented in the fiber drawing process.

Proceedings Article | 26 February 2018 Paper

Design of an amplifier model accounting for thermal effect in fully aperiodic large pitch fibers

K. Tragni, C. Molardi, F. Poli, R. Dauliat, B. Leconte, D. Darwich, R. du Jeu, M. A. Malleville, R. Jamier, S. Selleri, P. Roy, A. Cucinotta

Proceedings Volume 10512, 1051228 (2018) https://doi.org/10.1117/12.2290825

KEYWORDS: Photonic crystal fibers, Fiber amplifiers, Fiber lasers, Ytterbium, Thermal effects, Thermal modeling, Absorption, Numerical simulations, Refractive index, Data modeling

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Proceedings Article | 26 February 2018 Presentation + Paper

Experimental investigation of the transverse modal instabilities onset in high power fully-aperiodic-large-pitch fiber lasers

Marie-Alicia Malleville, Aurélien Benoît, Romain Dauliat, Baptiste Leconte, Dia Darwich, Rémi du Jeu, Raphaël Jamier, Anka Schwuchow, Kay Schuster, Philippe Roy

Proceedings Volume 10512, 1051206 (2018) https://doi.org/10.1117/12.2290091

KEYWORDS: High power fiber lasers, High power fiber amplifiers

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Proceedings Article | 26 February 2018 Presentation + Paper

Theoretical and experimental study of bent fully aperiodic large-pitch fibers for enhancing the high-order modes delocalization

Rémi du Jeu, Romain Dauliat, Dia Darwich, Jean-Louis Auguste, Aurélien Benoît, Baptiste Leconte, Marie-Alicia Malleville, Raphaël Jamier, Kay Schuster, Philippe Roy

Proceedings Volume 10512, 105121S (2018) https://doi.org/10.1117/12.2290221

KEYWORDS: Cladding, Refractive index, Optical fibers, Laser resonators, Fiber lasers, Silica, Mirrors, Tolerancing

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Proceedings Article | 22 February 2017 Presentation + Paper

High peak-power fiber laser based on a non filamented-core fully-aperiodic large pitch fiber

A. Benoit, M. A. Malleville, R. Du Jeu, R. Dauliat, D. Darwich, R. Jamier, S. Grimm, Jens Kobelke, K. Schuster, P. Roy

Proceedings Volume 10083, 100831F (2017) https://doi.org/10.1117/12.2251870

KEYWORDS: Fiber lasers, Cladding, Refractive index, Structured optical fibers, Chemical weapons, Manufacturing, Amplifiers, Picosecond phenomena, Quality measurement, Photonic crystals, Silica, Optical amplifiers, Fiber amplifiers, Medium wave

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Proceedings Article | 11 March 2016 Paper

Inner cladding influence on large mode area photonic crystal fiber properties under severe heat load

Enrico Coscelli, Federica Poli, Romain Dauliat, Dia Darwich, Annamaria Cucinotta, Stefano Selleri, Kay Schuster, Aurélien Benoît, Raphael Jamier, Philippe Roy

Proceedings Volume 9728, 972819 (2016) https://doi.org/10.1117/12.2209491

KEYWORDS: Cladding, Photonic crystal fibers, Fiber lasers, Thermal effects, Finite element methods, High power fiber lasers, Fiber amplifiers, Clouds, Refractive index, Laser damage threshold

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Proceedings Article | 9 March 2016 Paper

High-power fiber laser based on a non filamented-core fully-aperiodic large pitch fiber

A. Benoit, R. Dauliat, D. Darwich, R. Jamier, S. Grimm, Jens Kobelke, K. Schuster, P. Roy

Proceedings Volume 9728, 97280H (2016) https://doi.org/10.1117/12.2212622

KEYWORDS: Fiber lasers, Laser development, High power fiber lasers, Cladding, Solids, Manufacturing, Silica, Laser resonators, Fiber amplifiers, Refractive index, Near field, Structured optical fibers, Glasses

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Proceedings Article | 7 May 2015 Paper

Large mode area aperiodic fiber designs for robust singlemode emission under high thermal load

Romain Dauliat, Enrico Coscelli, Federica Poli, Dia Darwich, Aurélien Benoît, Raphaël Jamier, Kay Schuster, Stephan Grimm, Annamaria Cucinotta, Stefano Selleri, François Salin, Philippe Roy

Proceedings Volume 9507, 950709 (2015) https://doi.org/10.1117/12.2178935

KEYWORDS: Cladding, Silica, Refractive index, Fermium, Frequency modulation, Solids, Photonic crystals, Thermography, Ions, Thermal optics

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Proceedings Article | 7 May 2015 Paper

Investigation of passive and active silica-tin oxide nanostructured optical fibers fabricated by "inverse dip-coating" and "powder in tube" method based on the chemical sol-gel process and laser emission

G. Granger, C. Restoin, P. Roy, R. Jamier, S. Rougier, J.-R. Duclere, A. Lecomte, R. Dauliat, J.-M. Blondy

Proceedings Volume 9507, 95070J (2015) https://doi.org/10.1117/12.2180868

KEYWORDS: Optical fibers, Tin, Oxides, Nanoparticles, Sol-gels, Absorption, Silica, Ytterbium, Nanostructuring, Optical properties

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Proceedings Article | 2 May 2014 Paper

Striving towards a periodicity breaking of the photonic crystal fibers microstructuration for an unprecedented singlemode robustness

Romain Dauliat, Aurélien Benoît, Raphaël Jamier, Kay Schuster, Stephan Grimm, François Salin, Philippe Roy

Proceedings Volume 9128, 912807 (2014) https://doi.org/10.1117/12.2051551

KEYWORDS: Cladding, Silica, Refractive index, Manufacturing, Photonic crystals, Tolerancing, High power lasers, Optical filters, Ions, Photonic crystal fibers

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SPIE Journal Paper | 27 February 2014

Optical fiber microstructuration for strengthening single-mode laser operation in high power regime

Aurélien Benoit, Romain Dauliat, Kay Schuster, Stephan Grimm, Raphaël Jamier, François Salin, Philippe Roy

OE, Vol. 53, Issue 07, 071817, (February 2014) https://doi.org/10.1117/12.10.1117/1.OE.53.7.071817

KEYWORDS: Fiber lasers, Silica, Cladding, Fermium, Frequency modulation, Refractive index, Structured optical fibers, Optical fibers, Fabrication, Manufacturing

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Showing 5 of 22 publications

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