Ph. Balcou

Temporal compression and repetition-rate agility of a high-power sub-picosecond electro-optic laser for multi-GHz material polishing

D. Sarton, T. Guilberteau, Jean-Christophe Delagnes, Ch. Lacampagne et autres

fr (code pays fourni par la source)

2-kW average power capability of a liquid face-cooled, rotating multi-disk amplifier technology

Denis Marion, Christophe Feral, Jérôme Lhermite, Dominique Descamps et autres

New laser technologies reaching multi-kilowatt average powers, with the intrinsic capacity to deliver energetic pulses, are required for upcoming high-profile applications of intense lasers. We demonstrate that a diode-pumped, rotating multi-disk Yb:YAG technology, coupled with direct face-cooling by heavy water, reaches an …

Calibration of the modulators in the OURAL electro-optic laser

Duncan Sarton, Charles Lacampagne, Denis Marion, Jérôme Lhermite et autres

Dataset for the calibration of the modulators in the electro-optic laser source OURAL.

fr (code pays fourni par la source)

Calibration of the modulators in the OURAL electro-optic laser

Duncan Sarton, Charles Lacampagne, Denis Marion, Jérôme Lhermite et autres

Dataset for the calibration of the modulators in the electro-optic laser source OURAL.

fr (code pays fourni par la source)

Quasi-Phase Matching of Third-Order Nonlinear Processes by Direct Laser Writing

Vincent Fortin, Mathis Carpentier, Lionel Canioni, Thierry Cardinal et autres

Direct laser-writing (DLW) is a well-known approach for creating photonic structures by locally modifying the refractive index of a material [1]. In recent decades, waveguides, splitters, selective filters, and more complex structures have been successfully demonstrated. Experiments on photo-thermo-refractive (PTR) glasses and …

fr (code pays fourni par la source)

Temporal Compression of an Electro-Optic Fiber Laser With Flexible Repetition Rate in the Multi-GHz Range

Duncan Sarton, Jérôme Lhermite, Jean-Christophe Delagnes, Ph. Balcou et autres

In 1988, Kobayashi et al., introduced the concept of electro-optically (EO) modulated picosecond lasers with ultra-high repetition rates (RR) [1]. These sources are still under development to obtain ultrafast lasers, with full flexibility for time-tailored laser-matter interactions [2]. However, the temporal compression …

fr (code pays fourni par la source)

Flat-Top Beam Shaping for High-Power High-Energy ps Yb:YAG Lasers

S. Petit, Vincent Fortin, Maylis Lavastre, Marie-Christine Nadeau et autres

Yb:YAG Joule-level picosecond kilowatt laser systems present significant scientific and technological challenges. Cryogenically-cooled disks have demonstrated 1.1 J at 1 kHz [1], while thin disks have shown 720 mJ at the same repetition rate [2]. HORIZON, a laser development program targeting 1 …

fr (code pays fourni par la source)

Liquid Face Cooled Spinning Disks for Kilowatt Yb-YAG Laser Amplifier

Jérôme Lhermite, Christophe Féral, Denis Marion, Antoine Rohm et autres

High-power solid-state lasers are among the hot research directions at the forefront of laser research and have major applications in applied scientific research, medical treatment, industrial processing, Inertial Fusion Energy and other fields [1]. Heat management is a critical challenge in high-power …

fr (code pays fourni par la source)

Cooling Laser Media in a Turbulent or Instable Flow: Index-Leveling for Forced-Flow Face-Cooling of High-Power Amplifiers

Denis Marion, Jérôme Lhermite, Christophe Féral, Duncan Sarton et autres

In the design of laser amplifiers capable of delivering high pulse energies and substantial repetition rates, the dimensions of the active media often increase significantly, sometimes resulting in an optical diameter that exceeds the length of the solid-state medium used for amplification. …

fr (code pays fourni par la source)

Compression of a repetition-rate tunable electro-optic laser in the multiGHz regime

Duncan Sarton, Jérôme Lhermite, Jean-Christophe Delagnes, Ph. Balcou et autres

We explore a technology for a multi-GHz, high power fiber laser whose Repetition Rate (RR) can be electronically tuned between 6-18 GHz by using electro-optics modulators, with a picosecond duration and average powers up to 20 W. The spectrum follows a Bessel …

fr (code pays fourni par la source)

Physics and technology of liquid face-cooling for multi-kiloWatt Yb-YAG laser amplifiers

Ph. Balcou, Christophe Féral, S. Petit, Dominique Descamps et autres

Combined amplification technologies are explored in the frame of the HORIZON project at CELIA, Bordeaux University, aiming to deliver Joule-range picosecond pulses at the kW level, from CW diode-pumped rotating Yb:YAG multi-slabs, face-cooled with water. After an overview of HORIZON, we report …

fr (code pays fourni par la source)

Commissioning of ThomX Compton source subsystems and demonstration of 10 10 x-rays/s

Muath Alkadi, M.A. Alves, Manar Amer, Loïc Amoudry et autres

ThomX is a compact x-ray source based on Compton scattering, installed at IJCLab (Laboratoire de physique des 2 infinis-Irène Joliot-Curie) in Orsay. The machine uses a small electron storage ring and an intense laser pulse stored in a high-finesse optical cavity. This …

fr (code pays fourni par la source)