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arXiv · 2412.01236

Confinement Specific Design of SOI Rib Waveguides with Submicron Dimensions and Single Mode Operation

Abdurrahman Javid Shaikh·Abdul Ghani Abro·Mirza Muhammad Ali Baig·Muhammad Adeel Ahmad Siddiqui·Syed Mohsin Abbas
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Abstract

Full-vectorial finite difference method with perfectly matched layers boundaries is used to identify the single mode operation region of submicron rib waveguides fabricated using sili-con-on-insulator material system. Achieving high mode power confinement factors is emphasized while maintaining the single mode operation. As opposed to the case of large cross-section rib waveguides, theoretical single mode conditions have been demonstrated to hold for sub-micron waveguides with accuracy approaching 100%. Both, the deeply and the shallowly etched rib waveguides have been considered and the single mode condition for entire sub-micrometer range is presented while adhering to design specific mode confinement requirements.

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Abdurrahman Javid Shaikh, Abdul Ghani Abro, Mirza Muhammad Ali Baig, Muhammad Adeel Ahmad Siddiqui, Syed Mohsin Abbas. 2024-12-02. Confinement Specific Design of SOI Rib Waveguides with Submicron Dimensions and Single Mode Operation. https://doi.org/10.3390/engproc2022020019

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