Optical Nonlinear Activation Functions Based on MZI-Structure for Optical Neural Networks
Qiang Li, Shengping Liu, Zhao Yang, Wei Wang, Ye Tian, Junbo Feng, Jin Guo · 2020
We experimentally demonstrated an on-chip optical nonlinear activation function circuit for optical neural networks based on a conventional linear transformer, MZI-mesh. The proposed circuit is reconfigurable to perform multiple types of nonlinear activation functions.