A Principles

A basic coherent optical component used in this work is an MZI. MZIs into a triangular mesh (Recks-style) or rectangular mesh (Clements-style), we can construct arbitrary N N unitary U ( N) . As a simple example, we show the principle of Recks-style MZI array for a simple demonstration. We give a detailed description of our parallel mapping algorithm. We implement ONN simulation, all models, and training logic in PyTorch 1.8.1.