The Structural Deformations Influence in Microstructured Optical Fibers on Signal Transmission Characteristics

Authors

DOI:

https://doi.org/10.64915/RADAP.2026.105.%25p

Keywords:

dispersion compensation, microstructured optical fiber, optical fiber dispersion, optical fiber losses

Abstract

The paper considers the problem of assessing the influence of mechanical deformations on the characteristics of signal transmission in Microstructured Optical Fibers (MOFs) used in modern fiber-optic communication systems. The relevance of the research is due to increased requirements for the quality of data transmission in high-speed networks and the high sensitivity of MOF to external mechanical influences. The goal of the work is to research the influence of bends and twisting on the main parameters of signal transmission. A transverse model of an undeformed fiber and a modified model that takes into account structural changes caused by deformations have been constructed. The research methodology is based on an assessment of the influence of the ratio of the diameter of air channels to the pitch of their location (d/Λ) on the effective difference in refractive indices, chromatic dispersion and bending losses. The developed models allow taking into account geometric distortions of the fiber structure. The results obtained show that an increase in the parameter d/Λ leads to an increase in the effective refractive index and a significant change in waveguide dispersion. It is established that mechanical deformations cause additional changes in chromatic dispersion and increase bending losses due to the appearance of leaky modes. Quantitative analysis confirms a significant increase in losses and signal distortion with decreasing bending radius. The practical significance of the study lies in the possibility of using the obtained results in the design of dispersion compensation modules and fiber-optic communication lines. The conclusions confirm the high sensitivity of the MOF parameters to changes in the geometric structure and justify the need to take into account deformation effects to ensure reliable signal transmission.

Author Biographies

  • O. I. Filipenko, Kharkiv National University of Radio Electronics, Kharkiv, Ukraine

    Dean of the Faculty of Automation, Computer-Integrated Technologies and Systems, Professor at the Department of Computer-Integrated Technologies, Automation, Robotics and Safety Engineering, Doctor of Technical Sciences, Professor

  • O. V. Sychova, Kharkiv National University of Radio Electronics, Kharkiv, Ukraine

    Associate Professor at the Department of Computer-Integrated Technologies, Automation, Robotics and Safety Engineering, Candidate of Technical Sciences, Associate Professor

  • S. P. Novoselov, Kharkiv National University of Radio Electronics, Kharkiv, Ukraine

    Professor at the Department of Computer-Integrated Technologies, Automation, Robotics and Safety Engineering, Doctor of Technical Sciences, Associate Professor

  • V. I. Chumakov, Kharkiv National University of Radio Electronics, Kharkiv, Ukraine

    Professor at the Department of Design and Operation of Electronic Devices, Doctor of Technical Sciences, Professor 

  • V. P. Tuz, Kharkiv National University of Radio Electronics, Kharkiv, Ukraine

    Graduate Student at the Department of Microelectronics, Electronic Devices and Appliances

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Published

2026-09-30

Issue

No. 105 (2026)

Section

Telecommunication, navigation, radar systems, radiooptics and electroacoustics

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Copyright (c) 2026 О. І. Филипенко, О. В. Сичова, С. П. Новоселов, В. І. Чумаков, В. П. Туз

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How to Cite

“The Structural Deformations Influence in Microstructured Optical Fibers on Signal Transmission Characteristics” (2026) Visnyk NTUU KPI Seriia - Radiotekhnika Radioaparatobuduvannia, (105), pp. 31–38. doi:10.64915/RADAP.2026.105.%p.