Heterogeneous III-V-on-Silicon photonic Non-Linear Activation Function for Scalable Photonic Neural Networks

Targeting a large scale deep neural network implementation in the photonic domain, we experimentally demonstrate an optoelectronic activation function generated on our heterogeneous III-V-on-Si platform and the combination of a quantum dot avalanche photodiode with a quantum dot distributed feedback laser. The power threshold for the light activation out of the ReLU function is 5.25 mW.