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0225U004576,
(0125U003259)
,
Innovative Methods and Systems of Laser Communication in Turbulent Atmospheric Environments Based on Phase Singularities
Теоретичне та інженерне обгрунтування концепції та розробка новітніх підходів сингулярного мультиплексування у оптичних каналах зв'язку
Anhelskyi Oleh V., д.ф.-м.н.
12-12-2025
Yuriy Fedkovych Chernivtsi National University
Development of advanced physical and mathematical models for the propagation of vortex optical beams in turbulent media and the creation of original devices for vortex beam generation, which for the first time will enable singular multiplexing of such beams to implement secure, high-performance optical communication channels with UPs under conditions of disruptive electromagnetic effects and noise.
The work focuses on the development of a high-resilience free-space optical (FSO) communication system based on vortex beams carrying orbital angular momentum (OAM), intended for unmanned and robotic platforms operating under severe atmospheric and electronic-warfare conditions. The study emphasizes the creation of physical and mathematical models describing the propagation of partially coherent multimode vortex beams in non-stationary media, considering turbulence, phase fluctuations, and inter-mode coupling. The project includes the development and fabrication of diffractive optical elements (DOE) for OAM mode generation and demultiplexing, as well as their integration into an experimental communication link. A hardware–software media converter is implemented to receive digital and RF data streams and translate them into OAM-multiplexed optical signals. Experiments are carried out in two key wavelength ranges: 635 nm for design optimization and 980 nm for extended-range atmospheric operation. The media converter supports standard UART, Ethernet, USB, and RF (2.4/5.8 GHz) interfaces, ensuring compatibility with modern UAVs and ground stations. Data transmission and reception rely on typical protocol infrastructures. The control architecture is based on STM32 controllers supplemented with FPGA modules for high-speed OAM signal processing. Experimental validation employs CMOS/CCD imaging systems, interferometric diagnostics, phase masks, and a turbulence chamber with controlled parameters. Key channel characteristics are measured, including BER, latency, spatial distortions, topological charge stability, and demultiplexing efficiency. Expected results include advanced theoretical models, DOE components, a prototype OAM optical media converter, and the demonstration of a stable, interference-resistant, low-probability-of-intercept communication channel for unmanned technologies and high-precision telecommunications.
Felde Khrystyna V.
Kryvetskyi Vasyl I.
Igor Mokhun
Halushko Yurii K.
Viktorovska Yuliia Yu.
Zenkova Klavdiia Yu.
Volodymyr V. Kruk
Mykyta O. Kitsan
2025-12-12
Updated: 2025-12-12
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