A5066623639- Advanced Fiber Laser Technologies
- Photonic Crystal and Fiber Optics
- Optical Network Technologies
- Laser-Matter Interactions and Applications
- Advanced Fiber Optic Sensors
- Nonlinear Photonic Systems
- Advanced Photonic Communication Systems
- Orbital Angular Momentum in Optics
- Optical Coherence Tomography Applications
Laboratoire Interdisciplinaire Carnot de Bourgogne
2021-2025
Université de Bourgogne
2023-2025
Wrocław University of Science and Technology
2020-2025
AGH University of Krakow
2020-2024
University of Wrocław
2023
Centre National de la Recherche Scientifique
2021-2023
Université Bourgogne Franche-Comté
2022-2023
Optica
2022
Maria Curie-Skłodowska University
2022
We provide a complete analysis, from theory to experiment, of the spontaneous emergence discretized conical wave X-type (i.e., localized 2D+1 space-time wavepacket) when an intense ultrashort pulse nonlinearly propagates in multimode fiber. In particular, we reveal that this spatiotemporal phenomenon corresponds broadband intermodal dispersive emission unsteady structure formed during nonlinear propagation. Theoretical phase-matching predictions are experimentally and numerically confirmed...
A physical system is considered chiral when it can be distinguished from its mirror image, regardless of the applied translation and rotation. An electromagnetic wave through two essential forms angular momenta: spin orbital. Although interaction between momentum light matter now well known, way possessing an orbital interacts with a topic growing interest. In particular, specific signatures light–matter that depend on sign remain elusive. We demonstrate here chirality takes place as soon...
We experimentally investigate the spectro-temporal characteristics of coherent supercontinuum (SC) pulses generated in several implementations silica and soft-glass all-normal dispersion (ANDi) photonic crystal fibers optimized for pumping with Erbium (Er):fiber femtosecond laser technology. characterize resulting SC using time-domain ptychography, which is especially suitable measurement complex, spectrally broadband ultrashort pulses. The measurements ANDi reveal intricate pulse shapes,...
This paper presents a linear dependence of temperature sensitivity in Rayleigh scattering-based optical frequency domain reflectometry (OFDR) on the concentration germanium fiber core. Eight different commercially available single-mode fibers have been investigated and compared with standard SMF-28 Corning fiber. We experimentally analyzed influence core, protective coating, degree reduction cladding's diameter, amount humidity backscatter response to temperatures ranging from 10-90°C....
We report on trapped pulse generation in birefringent photonic crystal fiber. Linearly polarized ultrashort pulses are injected into the fiber an anomalous dispersion regime. observed experimentally that a soliton along fast axis partially transfers its energy to orthogonal polarization. The generated is amplified through Raman gain. two polarization components located at group-velocity-matched wavelengths. experimental works agreement with numerical simulations. obtained results important...
We present theoretical and experimental evidence of high-gain far-detuned nonlinear frequency conversion, extending towards both the visible mid-infrared, in a few-mode graded-index silica fiber pumped at 1.064 $\mu$m, more specifically achieving gains hundreds dB per meter below 0.65 $\mu$m beyond 3.5 $\mu$m. Our findings highlight potential fibers terms strong modal confinement over an ultrabroad spectral range for enabling wavelength conversion. Such advancements require accurate...
We present theoretical and experimental evidence of high-gain far-detuned nonlinear frequency conversion, extending towards both the visible mid-infrared, in a few-mode graded-index silica fiber pumped at 1.064 μm , more specifically achieving gains hundreds dB per meter below 0.65 beyond 3.5 . Interestingly, our findings highlight potential fibers for enabling wavelength conversion into strong-loss spectral region silica. Such advancements require an accurate interpretation intramodal...
We present a direct comparison between two types of femtosecond 2 µm sources used for seeding an ultrafast thulium-doped fiber amplifier based on all-normal dispersion supercontinuum and soliton self-frequency shift. Both nonlinear effects were generated in microstructured silica fibers, pumped with low-power pulses at 1.56 originating from erbium-doped laser. performed full characterization both processes, including their shot-to-shot stability, phase coherence, relative intensity noise....
We numerically and experimentally demonstrate the spontaneous emergence of conical waves when an ultrashort pulse propagates nonlinearly in a step-index multimode fiber.
We present both theoretical and experimental evidence of far-detuned nonlinear wavelength conversion towards the mid-infrared, namely beyond 3500 nm, in a few-mode graded-index silica fiber pumped at 1064 nm. Intramodal intermodal four-wave mixing processes are carefully analyzed by means frequency-dependent propagation constants.
We present theoretical as well experimental evidence of far-detuned nonlinear wavelength conversion towards the mid-infrared, namely beyond 3.5 µm, in a few-mode graded-index silica fiber pumped at 1.064 µm. take into account full frequency-dependence propagation constants, which allows us to obtain excellent agreement predictions with observations and provides new accurate interpretation intramodal intermodal four-wave mixing processes fibers.
We demonstrate spontaneous emission of discretized conical wave when an ultrashort pulse propagates nonlinearly in a multimode fiber. Our theoretical predictions are experimentally and numerically confirmed , providing general understanding phase-matched radiations emitted by nonlinear waves multidimensional dispersive optical system.
We report on trapped pulse generation in birefringent microstructured optical fiber. Linearly polarized fs pulses are injected into the fiber anomalous dispersion regime. observed experimentally that soliton along fast axis partially transfers its energy to orthogonal polarization. The generated is amplified through Raman gain. two polarization components located at group-velocity matched wavelengths. experimental works supported with numerical simulations. obtained results important for...
We numerically and experimentally demonstrate the spontaneous emergence of conical waves when an ultrashort pulse propagates nonlinearly in a multimode fiber, i.e. discretization emission phenomenon (e.g., X-wave) bulk media.
We provide a complete analysis, from theory to experiment, of the spontaneous emergence discretized conical wave X-type (i.e., localized 2D+1 space-time wavepacket) when an intense ultrashort pulse nonlinearly propagates in multimode fiber. In particular, we reveal that this spatiotemporal phenomenon corresponds broadband intermodal dispersive emission unsteady structure formed during nonlinear propagation. Theoretical phase-matching predictions are experimentally and numerically confirmed...
Many ultrafast optics applications require uniform and smooth spectral temporal intensity profiles of ultrashort laser pulses. All normal dispersion (ANDi), coherent light pulses from fiber-based supercontinuum (SC) are often assumed to fulfill these requirements, backed up by many numerical simulations. However, detailed experimental data on the spectro-temporal characteristics ANDi SC is scarce.
We numerically and experimentally demonstrate the spontaneous emergence of conical waves when an ultrashort pulse propagates nonlinearly in a multimode fiber, i.e. discretization emission phenomenon (e.g., X-wave) bulk media.
We investigate polarization conversion between two linearly polarized soli- tons in microstructured birefringent optical fibers. The soliton along the fast axis transfers energy to orthogonal polarization. components have matched group velocities.