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<p>In this study, the attenuation performance of graded-index multimode optical fibers (GIMFs) is investigated and optimized using the Taguchi design of experiment (DoE) methodology. Six key control factors including core diameter, cladding diameter, minimum wavelength, maximum wavelength, number of wavelengths, and number of supported modes were examined to determine their relative influence on fiber attenuation. Analysis of both the signal-to-noise (S/N) ratio and data mean shown that the control factors affect attenuation in descending order of significance as follows: number of wavelengths, minimum wavelength, maximum wavelength, number of modes, core diameter, and cladding diameter. This ranking provided a systematic basis for parameter tuning and enabled the design of a GIMF structure achieving a minimized attenuation value of 0.2080&#xa0;dB/Km<b>,</b> without relying on conventional trial and error optimization. A tuning process was carried out using the Taguchi-derived factor rankings, and the resulting optimized design was validated via COMSOL Multiphysics simulations, demonstrating stable mode confinement, controlled dispersion behavior, and negligible material absorption loss. The finding confirm that the Taguchi method offers an efficient, reliable, and structured optimization strategy for GIMF design, reducing development complexity and computational effort. The methodology presented can be extended to optimize additional performance metrics and applied to next generation’s multimode and mode division multiplexed fiber systems.</p> Graphical abstract <p></p>

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Taguchi-based parameter optimization for low-loss graded-index multimode optical fiber design

  • 期刊论文

  • 发表日期：

    2026年4月28日

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  • Mohd H. S. Alrashdan

摘要

In this study, the attenuation performance of graded-index multimode optical fibers (GIMFs) is investigated and optimized using the Taguchi design of experiment (DoE) methodology. Six key control factors including core diameter, cladding diameter, minimum wavelength, maximum wavelength, number of wavelengths, and number of supported modes were examined to determine their relative influence on fiber attenuation. Analysis of both the signal-to-noise (S/N) ratio and data mean shown that the control factors affect attenuation in descending order of significance as follows: number of wavelengths, minimum wavelength, maximum wavelength, number of modes, core diameter, and cladding diameter. This ranking provided a systematic basis for parameter tuning and enabled the design of a GIMF structure achieving a minimized attenuation value of 0.2080 dB/Km, without relying on conventional trial and error optimization. A tuning process was carried out using the Taguchi-derived factor rankings, and the resulting optimized design was validated via COMSOL Multiphysics simulations, demonstrating stable mode confinement, controlled dispersion behavior, and negligible material absorption loss. The finding confirm that the Taguchi method offers an efficient, reliable, and structured optimization strategy for GIMF design, reducing development complexity and computational effort. The methodology presented can be extended to optimize additional performance metrics and applied to next generation’s multimode and mode division multiplexed fiber systems.

Graphical abstract