Contents

Bulletin of the Lebedev Physics Institute

Vol. 50, No. 3, 2023

Single-Frequency Erbium Laser Based on Random Distributed Feedback Based on Inhomogeneities of Phase Mask

M. I. Skvortsov, S. R. Abdullina and A. A. Vlasov p. S263  abstract

Control of the Number of Solitons in the Fiber Laser by Resonance Injection of External Narrow-Band Radiation

V. A. Ribenek, P. A. Itrin, D. A. Korobko and A. A. Fotiadi p. S268  abstract

Studying the Influence of the Interaction between Spectral Filtration and Slow Saturable Absorption on the Formation of Ultrashort Pulses in Optical Fiber Lasers

A. Yu. Kokhanovskiy, A. E. Perepelov and K. V. Serebrennikov p. S279  abstract

Numerical Study of the Scheme of a Fiber Optical Parametric Oscillator with Two-Arm Synchronous Pumping

V. D. Efremov and D. S. Kharenko p. S285  abstract

Single-Mode P2O5–F–SiO2 Optical Fibers with Optimized Acoustic Profile: Influence of the Contrast of Optical Refractive Index and Composition of Core Doping on the SBS Gain Maximum

S. V. Tsvetkov and M. E. Likhachev p. S291  abstract

Coherent Optical Frequency Reflectometer Based on a Self-sweeping Fiber Laser for Distributed Measurements

D. A. Krivosheina, A. Yu. Tkachenko, I. A. Lobach and S. I. Kablukov p. S305  abstract

Direct Laser Writing of a Helical Bragg Grating in a Silica Glass Vortex Fiber

V. V. Likhov, S. A. Vasil’ev, G. K. Alagashev, S. L. Semenov and A. G. Okhrimchuk p. S314  abstract

Radiation Resistance of Fiber Bragg Gratings under Intense Reactor Irradiation

P. F. Kashaykin, S. A. Vasiliev, A. L. Tomashuk, A. D. Ignatyev, V. A. Britskii, A. A. Shaimerdenov, A. M. Akhanov, P. P. Silnyagin and T. V. Kulsartov p. S322  abstract

Formation of Laser-Induced Periodic Structures on Thin Films of Transition Metal and Semiconductor Nitrides

K. A. Bronnikov, S. A. Gladkikh, K. A. Okotrub, V. P. Korolkov, A. A. Kuchmizhak and A. V. Dostovalov p. S329  abstract

Scheme of Signal Processing in a Multimode Communication Receiver Based on Convolutional Neural Networks

O. S. Sidelnikov, A. A. Redyuk and M. P. Fedoruk p. S336  abstract

Hydrodynamic Approximation for 2D Optical Turbulence: Statistical Distribution Symmetry

V. N. Grebenev, A. N. Grishkov, S. B. Medvedev and M. P. Fedoruk p. S343  abstract

Diffraction on a Perfectly Conducting Ribbon Grating

A. V. Nemykin and D. A. Shapiro p. S355  abstract

Fast Numerical Method of Second Order of Accuracy for Solving the Inverse Scattering Problem

O. V. Belai p. S366  abstract

Generation of Frequency-Modulated Optical Pulses of the IR Range in a Semiconductor Waveguide Structure with an Implemented Space Charge Wave

A. S. Abramov, I. O. Zolotovskii, A. S. Kadochkin, S. G. Moiseev, I. S. Panyaev, D. G. Sannikov, M. S. Yavtushenko, V. V. Svetukhin and A. A. Fotiadi p. S374  abstract

Lasers

New Lasing Mode of a Diode Laser: A 200-Picosecond Leading Edge of a Nanosecond Pulse

S. M. Pershin, V. S. Makarov, M. Ya. Grishin, V. A. Zavozin, A. L. Koromyslov, V. N. Lednev, P. A. Sdvizhenskii, I. Prochazka, I. M. Tupitsyn and E. A. Cheshev p. S383  abstract

Control over Laser Radiation Parameter

On the Dynamics of a Single-Mode Laser with an Additional Mirror

N. N. Rosanov p. S389  abstract