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<p>This article investigates the propagation characteristics of magneto-optic cylindrical waveguides, focusing on their potential for developing optical isolators through the distinct propagation behaviors in forward and backward directions. By analyzing the interaction of light with magneto-optic materials, it is shown how intrinsic asymmetry can be utilized to achieve effective isolation. A modified cylindrical waveguide structure is proposed, which enhances isolation performance, achieving an isolation ratio of 12 dB with an insertion loss of 3.8 dB at a wavelength of 1550&#xa0;nm. The results provide deeper insight into the mechanisms governing wave propagation in magneto-optic systems and pave the way for practical implementations in optical communication and signal processing. This work highlights the potential of custom-engineered cylindrical waveguides for advancing magneto-optical device technologies.</p>

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A new structure of magneto-optic cylindrical plasmonic isolator

  • 期刊论文

  • 发表日期：

    2025年11月22日

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  • Zahra Mansouri,
  • Mehdi Khatir,
  • Mohammad Naser-Moghadasi,
  • Ghafar Darvish

摘要

This article investigates the propagation characteristics of magneto-optic cylindrical waveguides, focusing on their potential for developing optical isolators through the distinct propagation behaviors in forward and backward directions. By analyzing the interaction of light with magneto-optic materials, it is shown how intrinsic asymmetry can be utilized to achieve effective isolation. A modified cylindrical waveguide structure is proposed, which enhances isolation performance, achieving an isolation ratio of 12 dB with an insertion loss of 3.8 dB at a wavelength of 1550 nm. The results provide deeper insight into the mechanisms governing wave propagation in magneto-optic systems and pave the way for practical implementations in optical communication and signal processing. This work highlights the potential of custom-engineered cylindrical waveguides for advancing magneto-optical device technologies.