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arXiv · 2506.22077

Design of Silicon Photonic microring resonators with complex waveguide cross-sections and minimal non-linearity

Stefania Cucco·Marco Novarese·Sebastian Romero Garcia·Jock Bovington·Mariangela Gioannini
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Abstract

We present a model and a rigorous method to calculate the transmission coefficient of silicon micro-rings with complex waveguide cross-section including non-linear effects and self-heating, with very short simulation times. The method is applied to the design of MRRs in the SISCAP platform with high Q and reduced non-linearity, namely due to two photon absorption and free carrier absorption. We demonstrate that the free carrier diffusion in rib waveguides and Shockely-Read-Hall recombination play a fundamental role in reducing the impact of non-linearities in the ring.

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Stefania Cucco, Marco Novarese, Sebastian Romero Garcia, Jock Bovington, Mariangela Gioannini. 2025-06-27. Design of Silicon Photonic microring resonators with complex waveguide cross-sections and minimal non-linearity. https://doi.org/10.1109/jphot.2025.3589138

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