S. A. Skobelev

Institute of Applied Physics

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АА

А. А. Балакин

Institute of Applied Physics

A. G. Litvak

Institute of Applied Physics

Elena A. Anashkina

N. I. Lobachevsky State University of Nizhny Novgorod

Alexey V. Andrianov

Russian Academy of Sciences

A. V. Kim

Institute of Applied Physics

ВА

В. А. Миронов

Institute of Applied Physics

ВА

В. А. Миронов

Institute of Applied Physics

A. G. Litvak

Institute of Applied Physics

ГМ

Г. М. Фрайман

Institute of Applied Physics

Nikolay Kalinin

Max Planck Institute for the Science of Light

Cooperative Institutions

Institute of Applied Physics

Russian Academy of Sciences

A.M. Obukhov Institute of Atmospheric Physics

N. I. Lobachevsky State University of Nizhny Novgorod

Yaroslav-the-Wise Novgorod State University

Saratov State University

Chalmers University of Technology

Heinrich Heine University Düsseldorf

Max Planck Society

Queen's University Belfast

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Self-compression of spatially limited laser pulses in a system of coupled light-guides

Laser Physics (2018)

А. А. Балакин A. G. Litvak В. А. Миронов S. A. Skobelev

The self-action features of wave packets propagating in a 2D system of equidistantly arranged fibers are studied analytically and numerically on the basis of the discrete nonlinear Schrödinger equation. Self-consistent equations for the characteristic scales of a Gaussian wave packet are derived on the basis of the variational approach, which are proved numerically for powers , slightly exceeding the critical one for self-focusing. At higher powers, the wave beams become filamented, and their amplitude is limited due to the nonlinear breaking of the interaction between neighboring light-guides. This makes it impossible to collect a powerful wave beam in a single light-guide. Variational analysis shows the possibility of the adiabatic self-compression of soliton-like laser pulses in the process of 3D self-focusing on the central light-guide. However, further increase of the field amplitude during self-compression leads to the development of longitudinal modulation instability and the formation of a set of light bullets in the central fiber. In the regime of hollow wave beams, filamentation instability becomes predominant. As a result, it becomes possible to form a set of light bullets in optical fibers located on the ring.

Filamentation

Self-phase modulation

10.1088/1555-6611/aaa115

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Citations (15)

Radiophysics and Quantum Electronics (2003)

Daniil Kartashov A. V. Kim S. A. Skobelev

Dissipative soliton

Oscillation (cell signaling)

Pulse compression

10.1023/a:1026315717195

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Citations (1)

Extreme self-compression along with superbroad spectrum up-conversion of few-cycle optical solitons in the ionization regime

Physical Review A (2015)

A. V. Kim A. G. Litvak В. А. Миронов S. A. Skobelev

A regime of extreme self-compression of optical solitons to single-cycle duration with further shortening along with superbroad spectrum up-shifting is revealed when the Kerr nonlinearity and ionization process are independently controlled. This results in efficient optical-pulse compression as a whole towards extremely short single-cycle pulses at essentially shorter wavelengths, which may open a new way to generate optical pulses with durations of hundreds of attoseconds in the ultraviolet domain.

Extreme ultraviolet

Attosecond

Pulse compression

Self-phase modulation

10.1103/physreva.92.033856

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Citations (11)

Structural features of the self-action dynamics of ultrashort electromagnetic pulses

Journal of Experimental and Theoretical Physics (2007)

А. А. Балакин A. G. Litvak В. А. Миронов S. A. Skobelev

Momentum (technical analysis)

Dispersion relation

Oscillation (cell signaling)

Group velocity

10.1134/s106377610703003x

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Citations (24)

Optimisation of parameters of Raman laser pulse compression in a plasma for its implementation using the PEARL laser facility (IAP RAS)

Quantum Electronics (2018)

А. А. Балакин D. Levin S. A. Skobelev

We consider Raman compression of laser pulses in a plasma under the conditions of an experiment planned at the Institute of Applied Physics of the Russian Academy of Sciences on the PEARL laser facility. The analysis is based on the equations describing, among other things, the effect of plasma dispersion and relativistic nonlinearity, as well as the dynamics of the field near the plasma wave breaking threshold. It is shown that the main limiting factors are excessive frequency modulation of the pump pulse and a too low plasma density in which the plasma wave breaking can occur. To reduce the negative influence of these effects, we suggest using an intense and short (on the order of the plasma period) seed laser pulse. Numerical simulation shows the possibility of a hundredfold increase in the intensity of the compressed pulse in comparison with the intensity of the pump pulse at a length of uniform plasma of 2 cm.

10.1070/qel16641

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Citations (2)

Self-compression of laser pulses in an active system of weakly-coupled light guides

Laser Physics (2018)

А. А. Балакин A. G. Litvak В. А. Миронов S. A. Skobelev L. A. Smirnov

Pulse compression

Laser science

10.1088/1555-6611/aacfa6

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Citations (5)

Self-action of Bessel wave packets in a system of coupled light guides and formation of light bullets

Journal of Experimental and Theoretical Physics (2017)

А. А. Балакин В. А. Миронов S. A. Skobelev

Self-focusing

Light Field

Bessel beam

10.1134/s1063776116150061

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Citations (4)

Coherent Combining of Broadband Radiation Using Multicore Fibers with Square Array of Coupled Cores

Conference on Lasers and Electro-Optics (2022)

Alexey V. Andrianov Nikolay Kalinin Elena A. Anashkina А. А. Балакин S. A. Skobelev

We demonstrate stable propagation of the out-of-phase supermode in a multicore fiber and efficient coherent combination the output radiation in a setup without lenslet array scalable to high power levels applicable to fiber amplifiers.

Multi-core processor

Square (algebra)

Fiber amplifier

10.1364/cleo_si.2022.sf2m.5

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Citations (0)

Stable few-cycle out-of-phase solitons in a rectangular multi-core fiber

Optics Letters (2023)

А. А. Балакин S. A. Skobelev A. G. Litvak

Stable out-of-phase soliton-like distributions of the wave field with few-cycle durations are found in fibers consisting of a rectangular lattice of weakly coupled cores. The stability of found distributions for durations larger than the critical value is shown analytically and numerically. Numerical simulation shows that the radiation of linear dispersive waves rather quickly transforms shorter pulses to the found solution with critical duration.

Self-phase modulation

10.1364/ol.503453

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Citations (2)

Optimization of the regime of shortening of relativistically strong laser pulses in the process of excitation of a plasma wake wave

Physical Review A (2014)

A. V. Kim A. G. Litvak В. А. Миронов S. A. Skobelev

A detailed theoretical investigation is performed for the self-compression of relativistically strong laser pulses under plasma wake wave excitation conditions. An analytical expression is obtained for the characteristic length of laser pulse self-compression in the one-dimensional case. A good agreement between the theoretical and numerical calculation of the dependence of the wave-packet compression length on both amplitude and plasma concentration is demonstrated. The influence of the wave beam self-focusing radiation process on the rate of shortening of the laser pulse duration is considered.

Pulse duration

10.1103/physreva.90.043843

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Citations (8)