Optical logic element for photoelectric digital logic operation and logic operation method thereof

Abstract

The invention relates to the technical field of optical logic elements, in particular to an optical logic element for photoelectric digital logic operation and a logic operation method thereof, and the element comprises a driving part which is used for providing driving for a photoelectric integrated part, generating digital modulation information capable of being recognized by the photoelectric integrated part and reading an electric signal output by the photoelectric integrated part; and a photoelectric integrated part used for carrying the digital modulation information input by the driving part by using the coherent optical signal, carrying out digital logic operation on the coherent optical signal in a preset optical diffraction neural network to obtain an operation result, generating an electric signal from the operation result based on a digital logic mapping relation, and outputting the electric signal; and using the driving part used for reading the electric signal and outputting an operation result. The embodiment of the invention has higher unit energy consumption calculation performance, different special logic operations can be reconfigured and designed in batches, the operation scale is large, and the modulation rate is high.

Description

technical field [0001] The present application relates to the technical field of optical logic elements, in particular to an optical logic element for photoelectric digital logic operation and a logic operation method thereof. Background technique [0002] In the era of the new data-driven industrial revolution, computing power is the primary productive force. With the development of artificial intelligence technology, the corresponding artificial intelligence algorithms are becoming more and more complex. At present, the density and size of devices on traditional micro-nano electronic chips have approached physical limits, and power consumption and computing power are also facing bottlenecks. Photoelectric computing makes full use of the dual advantages of light in computing power and energy consumption, and has the potential to solve the computing power and power consumption bottlenecks currently faced by large-scale computing. Optoelectronics smart chips can bring more t...

AI Technical Summary

Problems solved by technology

[0003] The optoelectronic digital logic operation chip is an important component to realize optoelectronic intelligent computing. At present, there are many ways to realize the optical digital logic gate: the optical digital logic gate can be realized by non-linear devices such as semiconductor optical amplifiers, periodically poled lithium niobate waveguides, and electroabsorption modulators. Its unit calculation energy consumption, noise and other performance are not ideal, and the integration potential is limited; in terms of integrated optical computing, the representative work in the world mainly includes matrix numerical calculation based on silicon photonics optical interference network array, optical phase change material array Realize the integration of storage and calculation, etc. Similar work has realized some simple optical calculations, but the current silicon photonics scheme has problems such as low parameter scale and relatively simple model structure; the optoelectronic Fourier domain convolutional neural network based on space optics has realized High-throughput optical computing, but the system modulation rate is limited, and errors are difficult to correct

In related technologies, there is a lack of a logic operation device that can perform large-scale operations and has a high modulation rate, which needs to be solved urgently

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