Silicon Photonics, Deep Learning, Optics, Fourier Transform, AI.
and F(X+iY)​. These can all be calculated by using our system three times to directly find the squared absolute Fourier transform of X, X+Y, and X+iY. We can show how this works with a specific example. Let us consider a device with a 5 by 5 input performing a simple discrete Fourier transform,