Category Archives: Статья

Numerical study of the scheme of a fibre optical parametric oscillator with two-arm synchronous pumping

V. D. Efremov, D. S. Kharenko Institute of Automation and Electrometry, Siberian Branch of Russian Academy of Sciences, Novosibirsk Novosibirsk State University Abstract: An innovative scheme of a fibre optical parametric oscillator with two-arm synchronous pumping is presented and numerically simulated in a wide range of parameters. The regions of existence of stable generation regimes… Read More »

Study of the influence of interaction of spectral filtering and slow saturable absorption on the formation of ultrashort pulses in fibre lasers

A. Yu. Kokhanovskiy, A. E. Perepelov, K. V. Serebrennikov Novosibirsk State University Abstract: We study the formation of ultrashort pulses in a fibre laser cavity with a slow saturable absorber and a spectral filter. It is found that in a cavity with total normal chromatic dispersion, the finite relaxation time of a saturable absorber leads… Read More »

Control of the number of solitons in a fibre laser by resonant injection of external narrow-band light

V. A. Ribenek, P. A. Itrin, D. A. Korobko, A. A. Fotiadi Ulyanovsk State University SPC “Technological Center” MIET Ioffe Institute, St. Petersburg Faculte Polytechnique, Université de Mons–Hainaut Abstract: We study mechanisms underlying the processes of production and annihilation of soliton pulses under the action of external injection. It is shown that, depending on the… Read More »

Single-frequency erbium laser with random distributed feedback implemented on phase mask inhomogeneities

M. I. Skvortsov, S. R. Abdullina, A. A. Vlasov Institute of Automation and Electrometry, Siberian Branch of Russian Academy of Sciences, Novosibirsk Abstract: We present a ∼1555.8-nm single-frequency erbium laser with random distributed feedback implemented on phase mask inhomogeneities upon writing a single highly reflective fibre Bragg grating. The spectrum of such a grating contains… Read More »

Fabrication and testing of Au- and multilayer Mo/Si-coated diffraction gratings with high-order brilliance in high orders in the soft X-ray and EUV ranges

L. I. Goray, T. N. Berezovskaya, D. V. Mokhov, V. A. Sharov, K. Yu. Shubina, E. V. Pirogov, A. S. Dashkov, A. V. Nashchekin, M. V. Zorina, M. M. Barysheva, S. A. Garakhin, S. Yu. Zuev, N. I. Chkhalo Alferov Federal State Budgetary Institution of Higher Education and Science Saint Petersburg National Research Academic University… Read More »

Algorithm for determining the parameters of Lorentzian resonance curves

G. V. Kuptsov, V. A. Petrov, V. V. Petrov Institute of Laser Physics, Siberian Branch, Russian Academy of Sciences, Novosibirsk Novosibirsk State Technical University Abstract: We present a simple and reliable approach to determining the initial parameters of the problem of approximating the Lorentzian resonance curve. The proposed algorithm is tested on experimental data and… Read More »

High-frequency acousto-optic modulator with acoustic mode conversion

V. M. Epikhin, L. L. Pal’tsev All-Russian Scientific Research Institute of Physical-Technical and Radiotechnical Measurements, Mendeleevo, Moscow region Abstract: An acousto-optic modulator based on a TeO2 crystal for the frequency range 200–570 MHz with acoustic mode conversion upon reflection from the oblique face of the acousto-optic cell is fabricated and experimentally studied. The modulator operates… Read More »

CPT resonances under multifrequency optical pumping

K. N. Savinov, N. N. Golovin, A. K. Dmitriev Novosibirsk State Technical University Institute of Laser Physics, Siberian Branch, Russian Academy of Sciences, Novosibirsk Abstract: Resonances of coherent population trapping (CPT) are recorded during multifrequency pumping of a cell with Rb-87 by radiation from an external-cavity diode laser under the combined action of microwave and… Read More »

Impact of amplitude-modulated channels on amplitude-phase channels with coherent detection in distributed-gain fibre-optic communication lines

D. D. Starykh, L. A. Samodelkin, O. E. Nanii, V. N. Treshchikov T8 NTC LLC Faculty of Physics, Lomonosov Moscow State University Abstract: A technique for measuring interchannel distortions that occur in fibre-optic communication lines with QAM/CD and IM/DD channels is proposed, and a method for describing distortions in the form of additive noise is… Read More »

Nanoporous glasses doped with dysprosium for active visible-range optical fibres

E. A. Plastinin, L. D. Iskhakova, S. V. Firstov, V. M. Mashinsky, V. V. Vel’miskin, F. O. Milovich Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow Fiber Optics Research Center of the Russian Academy of Sciences, Moscow Moscow Institute of Physics and Technology (State University), Dolgoprudny, Moscow region National University of Science… Read More »