Passive all-optical nonlinear neuron speeds up AI computing using periodically poled lithium-niobate nanowaveguides to trigger activation

https://www.eurekalert.org/news-releases/1118857

"bridges gap between fast linear optics (math)/ previously slow nonlinear elements (decision-making)... chip-integrable, no external power, heaters, control beams... nonlinearity triggered from ultrafast electronic polarized data-carrying light, response near-instantaneous... >100 GHz data rates, >80% 2nd-harmonic conversion efficiency reshaping optical signals into sigmoid-like response like biological... chip with cascaded programmable silicon chip... medical image classification, airfoil noise regression"

Related: Photonic chips advance real-time learning in spiking neural systems
https://www.eurekalert.org/news-releases/1117988