Integrated optical vector-matrix multiplier based on micro-ring resonators

Abstract

The invention discloses an integrated optical vector-matrix multiplier. The optical vector-matrix multiplier comprises extensible inner product operation units formed by a plurality of tunable micro-ring resonators which have a parallel waveguide structure and are arranged in a one-dimensional manner. The optical vector-matrix multiplier realizes a multiplication between a matrix M*N and a vectorN*1 by employing the integrated optical mode, wherein elements in the matrix and the vector are all binary numbers (0 or 1) and M and N are natural numbers. The integrated optical vector-matrix multiplier based on the micro-ring resonators is high in integrated level, good in scalability and convenient in integration with electric elements, and enables to raise information transfer rates, reduce information transfer delays, avoid disadvantages of poor precision and weak programmable ability of analog optical computing systems and solve the problem of low space diversity efficiency of traditional optical vector-matrix multiplier.

Description

technical field [0001] The present invention relates to the technical field of optical vector-matrix multipliers, in particular to an integrated optical vector-matrix multiplier (Optical Vector-Matrix Multiplier, OVMM) based on a microring resonator. A tuned parallel straight waveguide microring resonator (Microring Resonator, MRR) is realized by two-dimensional arrangement. Background technique [0002] First of all, the model of the optical vector-matrix multiplier was proposed by J.W.Goodman of Stanford University in the United States and published in 1978 in "Fully parallel, high speed incoherentoptical method for performing discrete Fourier transforms" (J.W.Goodman, OPTICS LETTERS, Vol.2, No.1, 1-3) introduced it. Goodman's "Stanford vector-matrix multiplier" mainly includes three parts, namely the light source array, matrix mask and detector array. Firstly, using a row of light-emitting diodes as the input vector, arrange the light path between the light-emitting dio...

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Problems solved by technology

[0009] In view of this, the main purpose of the present invention is to provide a kind of optical vector-matrix multiplier based on the microring resonator, to improve the information transfer rate, reduce the delay of information transfer, avoid the poor accuracy and programmable Weak ability and other shortcomings, and solve the problem of low space diversity efficiency of traditional optical vector-matrix multipliers

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