Перегляд за автором "Levchenko, O."

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    Публікація
    Enhancement of Optical Methods and Systems for Object Sensing in Space
    (2024) Kurskyi, Yu. S.; Hnatenko, O. S.; Hnibeda, A.; Levchenko, O.
    In the field of spatial object sensing, an important task is the investigation of the parameters of both reflected and probing laser radiation. This task is crucial for the development and improvement of technologies used to detect and analyze optical devices. Laser optoelectronic systems are employed to scan the surrounding environment with a laser beam to identify reflective surfaces. This study presents a novel model for investigating the parameters and dynamics of laser radiation, treated as a nonlinear dynamic system. The model facilitates the measurement of physical quantities using nonlinear metrological methods, such as fractal dimension analysis and other topological tools. It is based on the assumption that measured quantities can be represented by interval values and allows for the transition from stationary to random dynamics. The model includes an experimental scheme that outlines various stages and procedures for evaluating measurement results. A key feature of this model is its systemic approach, which enables effective investigation of both stationary and chaotic modes of laser radiation dynamics. This approach allows for the measurement of parameter intervals in different modes, evaluation of their stability, and prediction of time series based on the obtained data. The classification of system dynamics is performed using fractal dimension methods, providing a detailed analysis of laser radiation behavior. The model can be applied both to ensure the stability of laser light parameters and to manage random radiation.
  • Зображення мініатюри
    Публікація
    New generation fiber optic gyroscopes
    (2024) Hnatenko, O. S.; Levchenko, O.; Morhun, I.
    The work presents research on the operation of a fiber-optic gyroscope. It consists of the following components: a superluminescent laser diode (wavelength 1550 nm), a circulator, a splitter, a phase modulator, and a 500-meter optical fiber coil (fiber type: Panda). Figure 1 illustrates the operation of this gyroscope [1], which meets the average accuracy metrics of existing analogs.