Lighting the path to AI

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Science  10 Aug 2018:
Vol. 361, Issue 6402, pp. 565-566
DOI: 10.1126/science.361.6402.565-g

Artificial intelligence (AI) explores different architectures that strive to exploit the powerful information-processing capability of the brain. Artificial neural networks use connected artificial components (mimicking the function of neurons and synapses) to process information and perform complex tasks such as written and spoken language and image recognition from vast datasets. All the networks require training, however, which usually has been done by computer, and the process can be very time-consuming. Hughes et al. developed an optical method in which the training process is done with laser light propagating through a complex network of paths patterned into an optical chip. The results bring the prospect of an optical chip–based AI platform operating at the speed of light a step closer.

Optica 5, 864 (2018).

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