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Matrix–matrix multiplication by using grating degeneracy in photorefractive media

Claire Gu, Scott Campbell, and Pochi Yeh

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Abstract

We propose and demonstrate a novel method that utilizes grating degeneracy in photorefractive media in conjunction with an incoherent laser array to implement parallel optical matrix–matrix multiplication. Such a matrix–matrix multiplier is capable of handling large matrices such as those with 1000 × 1000 elements. The principle of operation and preliminary experimental results are presented.

© 1993 Optical Society of America

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