AI at the Speed of Light

IEEE Spectrum  August 29, 2019 Researchers in Hong Kong have demonstrated a fully functioning all-optical neural network (AONN) in which linear operations are programmed by spatial light modulators and Fourier lenses, while nonlinear optical activation functions are realized in laser-cooled atoms with electromagnetically induced transparency. Because all errors from different optical neurons are independent, it is possible to scale up the size of the AONN. The hardware system is reconfigurable for different applications without the need to modify the physical structure. The AONN scheme can be used to construct various ANN architectures with intrinsic optical parallel computation…read more. Open Access […]