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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...
Programmable photonic circuits are dense assemblies of waveguide meshes in which the flow of light can be reconfigured by software to implement a wide variety of functions, ranging from radiofrequency filtering to optical computing. However, most programmable architectures to date rely on rather bulky Mach‐Zehnder interferometers (MZIs), which are not suitable for large‐scale and high‐density integration...
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