Vol. 61, No. 1, 2025

Optoelectronics, Instrumentation and Data Processing

PHOTONICS: METHODS, COMPONENTS, SYSTEMS

Generation of Optical Pulses from Phase-Modulated Wave Enforced in a Cylindrical Waveguide by a Traveling Space-Charge Wave

A. S. Abramov, I. O. Zolotovskii, V. A. Lapin, S. G. Moiseev, and D. G. Sannikov p. 1 abstract

Nonlinear Optical Switching of Ultrashort Pulses in a Two-Core Tellurite Light Guide

A. V. Andrianov, N. I. Sal’nikov, E. A. Anashkina, V. V. Dorofeev, S. E. Motorin, A. R. Sharafeev, O. V. Timofeev, and A. G. Litvak p. 12 abstract

Influence of Phase Cross-Modulation Effects on the Narrowband Lasing Mode of a Random Fiber Laser

O. A. Gorbunov, I. D. Vatnik, and D. V. Churkin p. 19 abstract

Saturable Absorber Based a Fiber Coupler with a Coating from Carbon Nanotubes

P. A. Itrin, V. A. Ribenek, Yu. P. Shaman, A. V. Sysa, D. A. Korobko, S. V. Vasin, and A. A. Fotiadi p. 26 abstract

Application of a Twin-Core Fiber with Mode Coupling between the Cores for the Narrow-Linewidth Erbium Laser Implementation

K. V. Proskurina, M. I. Skvortsov, E. V. Golikov, S. R. Abdullina, A. V. Dostovalov, O. N. Egorova, S. L. Semenov, and S. A. Babin p. 34 abstract

Selection of Radial Modes in Optical Fiber Using Thin Absorbing Cladding

V. S. Terentyev, and V. A. Simonov p. 40 abstract

Simultaneous Distribution of Two Quantum Keys When Transmitting Single Photons with Wavelengths of 780 and 850 nm via a Single Free-Space Quantum Channel

D. B. Tretyakov, A. V. Kolyako, A. S. Pleshkov, I. I. Ryabtsev, and I. G. Neizvestnyi p. 48 abstract

OPTICAL AND OPTICAL-ELECTRONIC INSTRUMENTS, SYSTEMS, AND TECHNOLOGIES

Spontaneous Symmetry Breaking in Glass Microspheres with Cubic Nonlinearity and Rayleigh Scattering

E. A. Anashkina, and A. V. Andrianov p. 57 abstract

Investigation of the Methods of Laser Nanostructural Modification of the Surfaces of Specimens of Tool Steels Preliminarily Subjected to Heat Treatment

V. P. Bessmel’tsev, S. G. Baev, N. V. Goloshevskii, A. V. Luk’yanov, and M. D. Zhumadilov p. 63 abstract

Effect of Thin Layers of CdTe and ZnTe on the Shape of GaAs Substrates

A. R. Novoselov, N. N. Mikhailov, R. V. Menshchikov, P. A. Aldokhin, and A. E. Matochkin p. 69 abstract

ANALYSIS AND SYNTHESIS OF SIGNALS AND IMAGES

A Nonparametric Pattern Recognition Algorithm in the Problems of Analyzing the Data of Remote Sensing over Anthropogenic Territories

A. V. Lapko, V. A. Lapko, and A. V. Sharueva p. 75 abstract

Pulse LFM Signal Detection

A. A. Makeev, and V. A. Shcherbachev p. 85 abstract

Algorithm of Statistical Analysis of Thermal Imaging Data for Assessing the Structure of the Occupation Layer of Archaeological Sites

A. G. Zlobina, I. V. Zhurbin, A. S. Shaura, and E. A. Rubleva p. 93 abstract

Problems Related to Calibration of Embedded Angular Sensors

V. P. Kiryanov, and A. V. Kiryanov p. 103 abstract

ARTIFICIAL INTELLIGENCE METHODS

Monitoring Desertification in Adrar Algeria Using Deep Learning and Spectral Indexes with Landsat-8 Images

Ouahab Abdelwhab p. 112 abstract

Hopfield Neural Network with Lotus Effect Optimization for Automatic Speaker Recognition in Noisy Environment

Sabita Nayak, Imteyaz Ahmad, and Pawan Kumar p. 119 abstract

Web Based Cyber-Attack Detection for Industrial System Using Virus Spread Optimization and G-LSTM Algorithm

Asanaru Kunju Yasir, and Kathirvelu Kalaivani p. 135 abstract

Nondestructive Detection of Road Defects Using YOLOv9 Neural Network and Transfer Learning

Ye Shiping, Li Zhiyuan, Zhu Shuaiyu, and Sergey Ablameyko p. 151 abstract

CONTROL AND INFORMATIONAL-MEASURING SYSTEMS

Recompense Load Demand and Improve Power Quality in Wind Connected System Using JNN Based FACTS Device