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.

Design of Silicon Photonic Microring Resonators With Complex Waveguide Cross-Sections and Minimal Non-Linearity / Cucco, Stefania; Novarese, Marco; Romero Garcia, Sebastian; Bovington, Jock; Gioannini, Mariangela. - In: IEEE PHOTONICS JOURNAL. - ISSN 1943-0655. - (2025), pp. 1-11. [10.1109/JPHOT.2025.3589138]

Design of Silicon Photonic Microring Resonators With Complex Waveguide Cross-Sections and Minimal Non-Linearity

Stefania Cucco;Marco Novarese;Mariangela Gioannini
2025

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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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/3002202