From square to cube: Hardware processing for AI goes 3D, boosting processing power

https://techxplore.com/news/2023-10-square-cube-hardware-ai-3d.html

"using different wavelengths to represent different sets of data... added extra parallel dimension to photonic matrix-vector multiplier chips exploiting multiple different radio frequencies encoding data... analyze 100 electrocardiogram signals simultaneously, 93.5% accuracy identifying sudden death risk... scaling of inputs × 6 outputs 100X energy efficiency and compute density enhancement... using radio frequencies to represent data... future: exploiting more degrees of freedom of light, such as polarization and mode multiplexing"