Silicon Programmable Photonic Circuits Based on Periodic Bimodal Waveguides (Laser Photonics Rev. 18(1)/2024)

Silicon Programmable Photonic Circuits Based on Periodic Bimodal Waveguides

In article number 2300505, Luis Torrijos-Morán and colleagues propose an alternative tunable unit to address some of the most challenging limitations in programmable photonics: large-scale integration and space utilization. They demonstrate the use of periodic bimodal waveguides in the core of the programmable photonic circuit for optical matrix multiplication, with a resulting footprint that vastly outperforms conventional MZI-based approaches by more than two orders of magnitude.