Fully reconfigurable coherent optical vector-matrix multiplication
Abstract
Optics is a promising platform in which to help realise the next generation of fast, parallel and energy-efficient computation. We demonstrate a reconfigurable free-space optical multiplier that is capable of over 3000 computations in parallel, using spatial light modulators with a pixel resolution of only 340x340. This enables vector-matrix multiplication and parallel vector-vector multiplication with vector size of up to 56. Our design is the first to simultaneously support optical implementation of reconfigurable, large-size and real-valued linear algebraic operations. Such an optical multiplier can serve as a building block of special-purpose optical processors such as optical neural networks and optical Ising machines.
Cite
@article{arxiv.2009.12095,
title = {Fully reconfigurable coherent optical vector-matrix multiplication},
author = {James Spall and Xianxin Guo and Thomas D. Barrett and A. I. Lvovsky},
journal= {arXiv preprint arXiv:2009.12095},
year = {2020}
}
Comments
4 pages, 4 figures