Photon matrix vector multiplier

Abstract

The invention provides a photon matrix vector multiplier which solves the problems that an existing photon matrix vector multiplier is sensitive to process errors and is difficult to expand on a large scale. The photon matrix vector multiplier comprises a light source, an input beam splitter, an input modulator array, a first multi-stage diffraction network, an intermediate modulator array, a second multi-stage diffraction network and a detector array which are arranged in sequence, the input modulator array comprises N first modulators; the intermediate modulator array comprises N second modulators; the detector array comprises N detectors; the first multi-stage diffraction network comprises M stages of first photon distribution units, each stage of first photon distribution unit comprises a first optical splitter and a first phase modulator array, the second multi-stage diffraction network comprises M stages of second photon distribution units, and each stage of second photon distribution unit comprises a second optical splitter and a second phase modulator array. The structure provided by the invention has the advantages of being insensitive to process errors, high in realizability, easy to integrate and the like.

Description

technical field [0001] The invention relates to the technical field of optical information, in particular to a photon matrix vector multiplier. Background technique [0002] Computing technology is the core of modern information technology. Traditional electronic computing methods have the disadvantages of high energy consumption, low efficiency, and low parallelism, but photonic computing technology can overcome the above shortcomings. Matrix-vector multiplication is an important branch of photonic computing. [0003] For applications such as artificial intelligence, matrix-vector multiplication accounts for more than 90% of the total computation. The traditional on-chip photon vector matrix multiplier is based on a multi-stage Marzendel interferometer structure. Based on the principle of eigenvalue decomposition, the structure decomposes any matrix into a concatenated structure of two unitary matrices and a diagonal matrix, and realizes the unitary matrix through the Mac...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the existing photon matrix vector multiplier is sensitive to process errors and difficult to expand on a large scale, and to provide a photon matrix vector multiplier

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