All-optical true random number generator based on feedback interference principle

Abstract

The invention relates to a chaotic light entropy source based on a feedback interference principle, in particular to an all-optical random number generator based on the feedback interference principle, which is applied to secret communication and large-scale calculation. The all-optical true random number generator based on a feedback interference principle comprises a first 3dB coupler, wherein the input end of the first 3dB coupler inputs continuous light as a first detection signal, one output end of the first 3dB coupler is sequentially connected with a first semiconductor optical amplifier and a first wavelength division multiplexer, and the other output end of the first 3dB coupler is sequentially connected with a second semiconductor optical amplifier and a second wavelength division multiplexer; and one output end of the first wavelength division multiplexer and one output end of the second wavelength division multiplexer are jointly connected with two input ends of a second 3dB coupler. According to the true random number generation device, the random code can be extracted only through the D trigger, the additional structure problem caused by signal distortion in the sampling process in the prior art is solved, and the limitation of an electronic bottleneck is broken through.

Description

technical field [0001] The invention relates to a chaotic light entropy source based on the principle of feedback interference, in particular to an all-optical random number generator based on the principle of feedback interference, which is applied in secure communication and large-scale calculation. Background technique [0002] Random numbers are widely used in scientific computing such as Monte Carlo simulation, statistical sampling, and artificial neural networks. Especially, in the field of secure communication, the generation of safe and reliable random numbers (also known as keys) is related to many aspects such as national defense security, financial stability, commercial confidentiality, and personal privacy. [0003] Shannon, the originator of information theory, proposed that "one-time-pad" encryption theory should be used for absolutely secure confidential communication. Three conditions are put forward for the random number generator: 1) The length of the key ...

AI Technical Summary

Problems solved by technology

[0009] The present invention solves the problem that the existing all-optical random numbers need to undergo optical-electrical-optical conversion, which cannot meet the requirements of modern optical communication systems, and the sampling and quantization devices are complicated, and post-processing is required to obtain random codes with good randomness To solve the technical problem, provide an all-optical true random number generator based on the principle of feedback interference

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