Explanipedia

Upconversion-pumped ultrafast 2.3-µm laser Open

Jonas Heidrich, Saad Hatim, Saïd Idlahcen, U. Keller · 2025

Watt-level polarization-maintaining Er3+: ZBLAN fiber laser tunable from 3.4 µm to 3.7 µm Open

Ammar Hideur, Tristan Guezennec, Kirill Eremeev, Pierre-Henry Hanzard, Thomas Godin , et al. · 2025

We demonstrate a linearly polarized Er3+: ZBLAN fiber laser in the dual wavelength pumping scheme for laser emission in the 3.4-3.7 µm spectral band. The laser is based on a polarization-maintaining heavily erbium-doped ZBLAN fiber dually …

Insights into the scalar structures in turbulent diffusion flames with progressive H2 addition using 1D spontaneous Raman scattering and simultaneous PIV-OH PLIF Open

Kuppuraj Rajamanickam, Ariff Magdoom Mahuthannan, Corine Lacour, Saïd Idlahcen, Armelle Cessou , et al. · 2025

International audience

Extreme ultraviolet source based on high harmonic generation in solids with a high-energy fiber-based 1550 nm driving laser Open

Anastasiia Mikhneva, Djamila Boukhaoui, Saïd Idlahcen, Jonathan Houard, Ivan Blum , et al. · 2025

National audience

High-harmonic generation in solids from a high-energy fiber laser system Open

Djamila Boukhaoui, Anastasiia Mikhneva, Saïd Idlahcen, Jonathan Houard, Thomas Godin , et al. · 2025

We demonstrate high-harmonic generation (HHG) in solids using a high-energy fiber laser system operating at 1550 nm. The driving few-cycle source consists of an erbium-doped fiber chirped pulse amplifier combined with a post-compression st…

Non-linear optics for an online probing of the specific surface area of nanoparticles in the aerosol phase Open

Maxime Joret, Saïd Idlahcen, Maciej Mazur, Jérôme Yon · 2024

International audience

Dynamics of a high-energy fiber optical parametric chirped-pulse oscillator Open

Tristan Guezennec, Saïd Idlahcen, Laurent Provino, Adil Haboucha, Thomas Godin , et al. · 2024

We investigate the performances and noise characteristics of the recent concept of fiber optical parametric chirped-pulse oscillator (FOPCPO). Our FOPCPO is based on an in-house built functionalized nonlinear fiber for power handling and d…

Progress Towards High-Speed OH-PLIF and PIV Laser Diagnostics in Turbulent H2/Air Flames Open

Christian Schweizer, Gilles Godard, Saïd Idlahcen, B. Barviau, F. Grisch · 2024

National audience

Investigation expérimentale des écoulements électrohydrodynamiques par vélocimétrie laser Open

Joel R. Karp, Franck Lefebvre, Saïd Idlahcen, Bertrand Lecordier, Mostafa Safdari Shadloo · 2024

International audience

Dynamics of a high-energy fiber optical parametric chirped-pulse oscillator Open

Thomas Godin, Tristan Guezennec, Saïd Idlahcen, Laurent Provino, Adil Haboucha , et al. · 2024

We investigate the performances and noise characteristics of the recent concept of fiber optical parametric chirped-pulse oscillator (FOPCPO). Our FOPCPO is based on an in-house built functionalized nonlinear fiber for power handling and d…

Dynamics of a high-energy fiber optical parametric chirped-pulse oscillator Open

Thomas Godin, Tristan Guezennec, Saïd Idlahcen, Laurent Provino, Adil Haboucha , et al. · 2024

We investigate the performances and noise characteristics of the recent concept of fiber optical parametric chirped-pulse oscillator (FOPCPO). Our FOPCPO is based on an in-house built functionalized nonlinear fiber for power handling and d…

Exploring Electrohydrodynamic Flows Inside Leaky Dielectric Drops: A Laser Velocimetry Approach Open

Joel R. Karp, Franck Lefebvre, Gilles Godard, Saïd Idlahcen, Bertrand Lecordier , et al. · 2024

A novel experimental methodology based on laser velocimetry for the investigation of electrohydrodynamic (EHD) flows inside a neutrally buoyant leaky dielectric drop of 2.25 mm of radius is proposed. Utilizing fluorescent particles, 2D and…

GaSb-based SESAM mode-locked femtosecond 2309-nm Tm:LiYF$_4$ laser Open

Jı Eun Bae, Aleksey Tyazhev, Marco Gaulke, Pavel Loiko, Jonas Heidrich , et al. · 2024

International audience

Oscillateur paramétrique fibré à dérive de fréquence : performances et dynamique Open

Tristan Guezennec, Saïd Idlahcen, Laurent Provino, Adil Haboucha, Thomas Godin , et al. · 2024

Ultrafast fiber laser for high-harmonic generation in solids Open

Anastasiia Mikhneva, Djamila Boukhaoui, Saïd Idlahcen, Jonathan Houard, Ivan Blum , et al. · 2024

International audience

High harmonic generation in Solids driven by high energy fiber laser source Open

Djamila Boukhaoui, Saïd Idlahcen, Jonathan Houard, Ivan Blum, Thomas Godin , et al. · 2024

International audience

An experimental study by laser diagnostics of the progressive decarbonization of a turbulent Bluff-Body flame with hydrogen Open

Kuppuraj Rajamanickam, Ariff Magdoom Mahuthannan, Saïd Idlahcen, Bertrand Lecordier, Corine Lacour , et al. · 2024

International audience

Statistic Vectorial Complex Ray Model and its Application to Three-Dimension Scattering of a Non-spherical Particle Open

Ruiping Yang, Bing Wei, C Rozé, Saïd Idlahcen, Kuan Ffang Ren · 2024

A Statistic Vectorial Complex Ray Model (SVCRM) is proposed for the scattering of a plane wave by a non-spherical dielectric particle in three dimensions. This method counts the complex amplitudes of all rays arriving in a tiny box in the …

Upconversion-pumped femtosecond thulium laser at 2309 nm mode-locked by a GaSb-based SESAM Open

Aleksey Tyazhev, Jı Eun Bae, Marco Gaulke, Pavel Loiko, Jonas Heidrich , et al. · 2024

We report on a femtosecond thulium laser operating on the 3 H 4 → 3 H 5 transition with upconversion pumping around 1 µm and passively mode-locked by a GaSb-based SEmiconductor Saturable Absorber Mirror (SESAM). This laser employs a 6 at.%…

2.8-µm polarization-maintaining Er fiber laser mode-locked by a GaSb-based SESAM Open

Simone Normani, Saïd Idlahcen, Pavel Loiko, Saad Hatim, Pierre-Henry Hanzard , et al. · 2024

A GaSb-based SEmiconductor Saturable Absorber Mirror (SESAM) enables continuous-wave picosecond mode-locked operation with excellent stability of a polarization-maintaining mid-infrared Er:ZBLAN fiber laser. The GaSb-based SESAM mode-locke…

Insights into the flow and scalar structures when shifting from methane to hydrogen turbulent flames using simultaneous PIV – OH PLIF and spontaneous Raman scattering Open

Kuppuraj Rajamanickam, Ariff Magdoom Mahuthannan, Corine Lacour, Saïd Idlahcen, Armelle Cessou , et al. · 2024

International audience

Continuous-wave and SESAM mode-locked 2.3-µm Tm:LiYF<sub>4</sub> lasers: Upconversion pumping at 1.45 µm Open

Jı Eun Bae, Marco Gaulke, Pavel Loiko, Jonas Heidrich, M. Golling , et al. · 2024

A Tm:LiYF4 laser operating on the 3 H 4 → 3 H 5 transition with upconversion pumping at 1.45 µm generates 831 mW at 2313 nm with 34.0% slope efficiency. Mode-locked by a GaSb- based SESAM, it delivers 855-fs pulses at 104.4-MHz.

μJ-level normal-dispersion fiber optical chirped-pulse parametric oscillator Open

Tristan Guezennec, Saïd Idlahcen, Armand Cervera, Pierre-Henry Hanzard, David Landais , et al. · 2024

We demonstrate the generation of broadband tunable and synchronized pulses exceeding the microjoule level using the new concept of Fiber Optical Parametric Chirped-Pulse Oscillation (FOPCPO). The oscillator is based on a collapsed-ends pho…

GaAs-chip-based mid-infrared supercontinuum generation Open

G. Granger, Myriam Bailly, Hugo Delahaye, Cristian Jiménez, Idris Tiliouine , et al. · 2023

High-intensity single-cycle THz source driven by a high-power fiber laser Open

Rezki Becheker, L. Guiramand, Anna Martinez, Saïd Idlahcen, Jonathan Houard , et al. · 2023

In this contribution, we specifically explore our THz source, driven by an ytterbium-fibre-based chirped-pulse amplifier system (from AFS GmbH). The system delivers ultrashort pulses of 300 fs duration with a maximum energy of 240 µJ at 33…

High-Intensity Single-Cycle THz Source Driven by a High-Power Fiber Laser Open

Rezki Becheker, L. Guiramand, Anna Martinez, Saïd Idlahcen, Jonathan Houard , et al. · 2023

International audience

Experimental study of the effect of droplets on opposed stretched premixed flames Open

Maxim Kuvshinov, Bertrand Lecordier, Saïd Idlahcen, Armelle Cessou, Bruno Renou , et al. · 2023

Multi-Scalar Measurements in Hydrogenated Bluff-Body Stabilized Turbulent Flames Using 1D Spontaneous Raman Scattering and OH -PLIF Open

Kuppuraj Rajamanickam, Ariff Magdoom Mahuthannan, Saïd Idlahcen, Bertrand Lecordier, Corine Lacour , et al. · 2023

International audience

Curvature-surface analysis to characterize the early stage of the atomization process of the pressure swirl injector Open

Diego Ferrando, Chetankumar S. Vegad, Saïd Idlahcen, Alexis Vandel, Bruno Renou , et al. · 2023

International audience

µJ-level normal dispersion fiber optical parametric chirped-pulse oscillator based on a collapsed-ends photonic crystal fiber Open

Tristan Guezennec, Saïd Idlahcen, Armand Cervera, Pierre-Henry Hanzard, David Landais , et al. · 2023

We demonstrate the generation of broadband tunable and synchronized pulses exceeding the microjoule level using the new concept of fiber optical parametric chirped-pulse oscillation (FOPCPO). The oscillator is based on a collapsed-ends pho…

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