New photonic neural networks promise ultrafast computing for complex tasks
(A) Experimental setup used to create the photonic SNN with a single VCSEL device. (B) The lasing threshold (light–current) characteristics of the experimental VCSEL neuron reveals a threshold current of 1.423 mA. (C) The spectra of the experimental VCSEL neuron at different bias currents. At the operating current (3.5 mA, red), the device exhibited 2 orthogonal polarization peaks at 1,287.44 nm and 1,287.59 nm. Measurements were taken with a room temperature (293 K) stabilized device. Credit: Intelligent Computing…
