All-optical spiking neurosynaptic networks with self-learning capabilities

By J. Feldmann, N. Youngblood, C. D. Wright, Harish Bhaskaran, Wolfram H. P. Pernice. Nature, 2019

1,287 citations recorded by the source corpus.

Software implementations of brain-inspired computing underlie many important computational tasks, from image processing to speech recognition, artificial intelligence and deep learning applications. Yet, unlike real neural tissue, traditional computing architectures physically separate the core computing functions of memory and processing, making fast, efficient and low-energy computing difficult to achieve. To overcome such limitations, an attractive alternative is to design hardware that mimics neurons and synapses. Such hardware, when connected in networks or neuromorphic systems, processes information in a way more analogous to brains. Here we present an all-optical version of such a neurosynaptic system, capable of supervised and unsupervised learning. We exploit wavelength division multiplexing techniques to implement a scalable circuit architecture for photonic neural networks, successfully demonstrating pattern recognition directly in the optical domain. Such photonic neurosynaptic networks promise access to the high speed and high bandwidth inherent to optical systems, thus enabling the direct processing of optical telecommunication and visual data. An optical version of a brain-inspired neurosynaptic system, using wavelength division multiplexing techniques, is presented that is capable of supervised and unsupervised learning.

Subfields: Artificial Intelligence, Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/f922df7c58781cf5ad28a91a95700c874f2aa6c2

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In Artificial Intelligence

1. Xuancheng Ren
2. Xu Sun
3. Liangyou Li
4. Yichen Shen
5. Zhiyuan Zhang
6. Ruixuan Luo

Citations in the corpus

• Ultralow-threshold thin-film lithium niobate optical parametric oscillator (2021, neutral): “Lastly, by coupling several PPLNMRs, significant nonlinear interplay between the OPOs offers an platform for realizing the photonic neural networks and Ising models, which find applications in artificial machine learning [47, 48].”