Katarzyna Krupa
YOU?
Author Swipe
View article: Nonlinear flying focus pulses for ultrafast 3D nonlinear microscopy
Nonlinear flying focus pulses for ultrafast 3D nonlinear microscopy Open
Ultrafast 3D nonlinear multiphoton imaging holds great promise for the visualization of complex biological structures. However, its practical implementation remains constrained, primarily due to the limited longitudinal scanning speed achi…
View article: Spatio-spectral light-by-light moulding in multimode fibre
Spatio-spectral light-by-light moulding in multimode fibre Open
Controlling complex light waves to achieve desired behaviours or characteristics on demand presents a significant challenge. This task becomes even more complicated when manipulating speckled light beams owing to their inherently fuzzy int…
View article: Widely-tunable all-fiber optical parametric oscillator seeded by filtered self-phase modulated pulses
Widely-tunable all-fiber optical parametric oscillator seeded by filtered self-phase modulated pulses Open
We demonstrate experimentally a widely-tunable all-fiber light source based on a four-wave mixing resonant cavity configuration. We show how a self-phase modulation of chirped pulses at a fixed central wavelength enables the construction o…
View article: Widely-tunable all-fiber optical parametric oscillator seeded by filtered self-phase modulated pulses
Widely-tunable all-fiber optical parametric oscillator seeded by filtered self-phase modulated pulses Open
We demonstrate experimentally a widely-tunable all-fiber light source based on a four-wave mixing resonant cavity configuration. We show how a self-phase modulation of chirped pulses at a fixed central wavelength enables the construction o…
View article: Nonlinear flying focus pulses: Townes soliton for ultrafast 3D nonlinear microscopy
Nonlinear flying focus pulses: Townes soliton for ultrafast 3D nonlinear microscopy Open
We experimentally demonstrate that Townes solitons generated in a Nd:YAG crystal enable the formation of ultrafast nonlinear flying focus pulses that can be exploited for nonlinear fluorescence imaging. The power dependent longitudinal shi…
View article: Nonlinear flying focus pulses: Townes soliton for ultrafast 3D nonlinear microscopy
Nonlinear flying focus pulses: Townes soliton for ultrafast 3D nonlinear microscopy Open
We experimentally demonstrate that Townes solitons generated in a Nd:YAG crystal enable the formation of ultrafast nonlinear flying focus pulses that can be exploited for nonlinear fluorescence imaging. The power dependent longitudinal shi…
View article: Quick fabrication method of a thermally expanded core in polarization-maintaining fibers using CO<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si2.svg" display="inline" id="d1e274"><mml:msub><mml:mrow/><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:math> laser and fiber rotation
Quick fabrication method of a thermally expanded core in polarization-maintaining fibers using CO laser and fiber rotation Open
View article: Noise‐Like Pulse Seeded Supercontinuum Generation: An In‐Depth Review For High‐Energy Flat Broadband Sources
Noise‐Like Pulse Seeded Supercontinuum Generation: An In‐Depth Review For High‐Energy Flat Broadband Sources Open
As the need for compact, cost‐effective, and reliable laser sources continues to rise, fiber lasers have gained widespread interest in science and technology. In recent years, passively mode‐locked fiber lasers (PMLFLs) have emerged as piv…
View article: Concatenation of Kerr solitary waves in Ceramic YAG: application to coherent Raman imaging
Concatenation of Kerr solitary waves in Ceramic YAG: application to coherent Raman imaging Open
A coherent concatenation of multiple Townes solitons may lead to a stable infrared and visible broadband filament in ceramic YAG polycrystal. This self-trapped soliton train is leveraged to implement self-referenced multiplex coherent anti…
View article: All-polarization-maintaining Nd-doped ultrafast fiber laser oscillator at 929 nm mode-locked via a 3x3 nonlinear amplifying loop mirror: erratum
All-polarization-maintaining Nd-doped ultrafast fiber laser oscillator at 929 nm mode-locked via a 3x3 nonlinear amplifying loop mirror: erratum Open
This erratum corrects errors in Fig. 3 and Fig. 4 of the original publication [ Opt. Express 32 , 31672 ( 2024 ) 10.1364/OE.530457 ] caused by incorrect values of the vertical axes in logarithmic scales. The corrections do not influence th…
View article: Self-starting mode-locking in an all-PM Yb-doped fiber laser oscillator enabled by a 3x3 nonlinear optical lossy loop mirror: erratum
Self-starting mode-locking in an all-PM Yb-doped fiber laser oscillator enabled by a 3x3 nonlinear optical lossy loop mirror: erratum Open
This erratum corrects an error in Fig. 4 of the original publication [ Opt. Express 31 , 42136 ( 2023 ) 10.1364/OE.505449 ] caused by incorrect values of the vertical axis in logarithmic scale. The correction does not influence the conclus…
View article: Cascaded geometric parametric process in a tapered air–silica graded-like multimode microstructure fiber
Cascaded geometric parametric process in a tapered air–silica graded-like multimode microstructure fiber Open
We experimentally study the spatial beam profile and the spectral broadening at the output of a multimode air–silica microstructure fiber taper, used along the direction of an increasing fiber diameter. By using a laser pump at 1064 nm emi…
View article: All-polarization-maintaining Nd-doped ultrafast fiber laser oscillator at 929 nm mode-locked via a 3x3 nonlinear amplifying loop mirror
All-polarization-maintaining Nd-doped ultrafast fiber laser oscillator at 929 nm mode-locked via a 3x3 nonlinear amplifying loop mirror Open
Successful generation of ultrashort pulses in the spectral region of 920 nm using Nd-doped fibers requires effectively suppressing the dominant 1064 nm four-level transition. Utilizing a hybrid design incorporating a W-shaped double-clad N…
View article: Relocation of a Townes soliton dedicated to ultrafast 3D imaging
Relocation of a Townes soliton dedicated to ultrafast 3D imaging Open
International audience
View article: All-polarization-maintaining Nd-doped ultrafast fiber laser oscillator at 929 nm mode-locked via a 3x3 nonlinear amplifying loop mirror
All-polarization-maintaining Nd-doped ultrafast fiber laser oscillator at 929 nm mode-locked via a 3x3 nonlinear amplifying loop mirror Open
Successful generation of ultrashort pulses in the spectral region of 920 nm using Nd-doped fibers requires effectively suppressing the dominant 1064 nm four-level transition. Utilizing a hybrid design incorporating a W-shaped double-clad N…
View article: All-polarization-maintaining Nd-doped ultrafast fiber laser oscillator at 929 nm mode-locked via a 3x3 nonlinear amplifying loop mirror
All-polarization-maintaining Nd-doped ultrafast fiber laser oscillator at 929 nm mode-locked via a 3x3 nonlinear amplifying loop mirror Open
Successful generation of ultrashort pulses in the spectral region of 920 nm using Nd-doped fibers requires effectively suppressing the dominant 1064 nm four-level transition. Utilizing a hybrid design incorporating a W-shaped double-clad N…
View article: Self-starting mode-locking in an all-PM Yb-doped fiber laser oscillator enabled by a 3x3 nonlinear optical lossy loop mirror
Self-starting mode-locking in an all-PM Yb-doped fiber laser oscillator enabled by a 3x3 nonlinear optical lossy loop mirror Open
Ultrafast fiber oscillators based on loop mirror saturable absorbers often suffer from a problematic self-starting mode-locking operation. It is usually necessary to provide an additional phase shift in the loop, guaranteeing repeatable in…
View article: Tunable four-wave mixing enabled by a self-phase modulation of chirped pulses
Tunable four-wave mixing enabled by a self-phase modulation of chirped pulses Open
We experimentally demonstrate how a concatenation of the standard and microstructure fiber segments permits adjusting the four-wave mixing sideband position over a large spectral range by varying the chirp of an input pulsed pump at a fixe…
View article: Spatial Beam Cleaning in Multimode GRIN Fibers: Polarization Effects
Spatial Beam Cleaning in Multimode GRIN Fibers: Polarization Effects Open
International audience
View article: Self-starting mode-locking in an all-PM Yb-doped fiber laser oscillator enabled by a 3x3 nonlinear optical lossy loop mirror
Self-starting mode-locking in an all-PM Yb-doped fiber laser oscillator enabled by a 3x3 nonlinear optical lossy loop mirror Open
Artificial saturable absorbers based on loop mirrors often suffer from a not self-starting mode-locking operation. It is usually necessary to provide an additional phase shift in the loop, guaranteeing repeatable initiation of the pulsed r…
View article: Tunable Four-Wave-Mixing enabled by Self-Phase-Modulation of chirped pulses.
Tunable Four-Wave-Mixing enabled by Self-Phase-Modulation of chirped pulses. Open
We experimentally demonstrate how a concatenation of standard and microstructure fiber segments permits adjusting the Four-Wave-Mixing sideband position over a large spectral range by varying the chirp of an input pulsed pump at a fixed wa…
View article: Tunable Four-Wave-Mixing enabled by Self-Phase-Modulation of chirped pulses.
Tunable Four-Wave-Mixing enabled by Self-Phase-Modulation of chirped pulses. Open
We experimentally demonstrate how a concatenation of standard and microstructure fiber segments permits adjusting the Four-Wave-Mixing sideband position over a large spectral range by varying the chirp of an input pulsed pump at a fixed wa…
View article: Semi-Linear All-Polarization-Maintaining Yb-Doped Fiber Laser Oscillator Manifesting Dual Operation Regime at Net Anomalous Dispersion
Semi-Linear All-Polarization-Maintaining Yb-Doped Fiber Laser Oscillator Manifesting Dual Operation Regime at Net Anomalous Dispersion Open
Ultrafast all-fiber Yb-doped fiber oscillators are usually associated with\nall-normal-dispersion cavities, which operate in a dissipative soliton regime,\nquintessential for pulsed operation at the wavelength of 1 {\\mu}m. This work\npres…
View article: Three octave visible to mid-infrared supercontinuum generation seeded by multimode silica fiber pumped at 1064 nm
Three octave visible to mid-infrared supercontinuum generation seeded by multimode silica fiber pumped at 1064 nm Open
Hyperspectral spectroscopy requires light sources with wide spectral ranges from the visible to the mid-infrared. Here, we demonstrate the first fiber-based mid-infrared supercontinuum covering three octaves of frequency by leveraging 1-µm…
View article: Self-starting mode-locking in an all-PM Yb-doped fiber laser oscillator enabled by a 3x3 nonlinear optical lossy loop mirror
Self-starting mode-locking in an all-PM Yb-doped fiber laser oscillator enabled by a 3x3 nonlinear optical lossy loop mirror Open
Artificial saturable absorbers based on loop mirrors often suffer from a not self-starting mode-locking operation. It is usually necessary to provide an additional phase shift in the loop, guaranteeing repeatable initiation of the pulsed r…
View article: Self-starting mode-locking in an all-PM Yb-doped fiber laser oscillator enabled by a 3x3 nonlinear optical lossy loop mirror
Self-starting mode-locking in an all-PM Yb-doped fiber laser oscillator enabled by a 3x3 nonlinear optical lossy loop mirror Open
Artificial saturable absorbers based on loop mirrors often suffer from a not self-starting mode-locking operation. It is usually necessary to provide an additional phase shift in the loop, guaranteeing repeatable initiation of the pulsed r…
View article: Spatial Division Multiplexing for Multiplex Coherent Anti-Stokes Raman Scattering
Spatial Division Multiplexing for Multiplex Coherent Anti-Stokes Raman Scattering Open
We demonstrate how a narrowband pump and a broadband spectrum can be spatially multiplexed by selective coupling them in two distinct modes of a few-mode microstructure fiber. The first mode carries most of the input pump energy, and exper…
View article: Spatial self-cleaning of laser beams with arbitrary state of polarization of light
Spatial self-cleaning of laser beams with arbitrary state of polarization of light Open
We report on an extensive experimental study of the state of polarization of light during spatial beam self-cleaning in graded-index multimode fibers. Our results show that, depending on the experimental conditions, intense multimode beams…
View article: Light-by-Light Control Enabled by Incoherent Beam Superpositions in Multimode Fibres
Light-by-Light Control Enabled by Incoherent Beam Superpositions in Multimode Fibres Open
Multimode fibres (MMFs) have recently demonstrated a great potential towards discovering numerous new and complex processes that have never been observed, so far [1]. Among others, Kerr self-cleaning has unveiled the ability of graded-inde…
View article: Rayleigh–Jeans thermalization vs beam cleaning in multimode optical fibers
Rayleigh–Jeans thermalization vs beam cleaning in multimode optical fibers Open