Title :
Optical neural chips
Author :
Lange, Eberhard ; Nitta, Yoshikazu ; Kyuma, Kazuo
Author_Institution :
Semicond. Res. Lab., Mitsubishi Electr. Corp., Amagasaki, Japan
Abstract :
An array of photodetectors, each having a variable sensitivity, forms the most important component of our two gallium arsenide chips. We designed the optical neurochip so that variable sensitivity photodiodes are monolithically integrated on top of an LED array, serving both as fast analog multipliers and as on-chip weight storage elements with learning capability. Our artificial retina device combines a VSPD array with a neural network for postprocessing, allowing us to perform fast, yet flexible, processing operations on projected images.<>
Keywords :
image processing; neural chips; optical neural nets; photodetectors; VSPD array; analog multipliers; artificial retina; gallium arsenide chips; learning capability; neural network; on-chip weight storage elements; optical neurochip; photodetectors; postprocessing; variable sensitivity; Gallium arsenide; Integrated optics; Light emitting diodes; Neural network hardware; Optical arrays; Optical computing; Optical design; Optical sensors; Photodetectors; Photodiodes;
Journal_Title :
Micro, IEEE
