Photonic neural network chip makes calculations a breeze

https://www.laserfocusworld.com/optics/article/14296149/photonic-neural-network-chip-makes-calculations-a-breeze

"calculation time billionth sec... photonic accelerator... optical waveguides connected controllable nodes programmable photonic mesh (silicon interferometer grid)... fully reconfigurable multipath interferometer.... recover information carried individual beams... backpropagation algorithms... only linear operations PNN implemented optically... efficient implementation of on-chip nonlinear operations will be the next step toward fully photonic AI computing on-chip"

Related: New detector paves the way to large-scale optical neural networks

https://techxplore.com/news/2023-08-detector-paves-large-scale-optical-neural.html