Work

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

Year: 2025

Type: article

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.

Source: IEEE photonics journal

Authors: Stefania Cucco, Marco Novarese, Sebastian Romero Garcia, Jock Bovington, Mariangela Gioannini

Institutions: Politecnico di Torino, Cisco Systems (United States)

Language: English

Topic: Photonic and Optical Devices

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,075

Funders: European Commission, NextGenerationEU

Awards: G4287518590, G7205771190