Microring-Based Si/SiN Dual-Layer Switch Fabric

The first microring-based Si/SiN dual-layer switch fabric is fabricated, packaged and characterized. The 4×4 thermally-actuated switch fabric implements the switch-and-select architecture in an ultra-compact footprint. It leverages the Si/SiN dual-layer structure achieving a crossing-free design, showing great potential for ultra-low loss and crosstalk switching applications.