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All-optical true random number generator

A true random number and generator technology, applied in the field of communication, can solve the problems of low code rate and non-tunable, achieve high code rate, overcome technical limitations, and achieve the effect of large-scale tuning

Inactive Publication Date: 2012-09-19
GUANGDONG UNIV OF TECH
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Problems solved by technology

[0011] The purpose of an all-optical true random number generator of the present invention is to solve the problems in the above-mentioned prior art that the code rate is too low and cannot be tuned, thereby disclosing a high-speed, code-rate-tunable full The technical solution of optical true random number generator, the device can meet the security needs of modern high-speed secure communication

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Embodiment Construction

[0027] Implementing an all-optical true random number generator of the present invention is based on the prior art, and replaces the chaotic pulse signal emitted by the passive mode-locked fiber laser with the high repetition frequency chaotic self-pulsation signal generated by light injection into the two-stage semiconductor laser As an all-optical true random number entropy source, a quarter-wavelength phase-shift distributed feedback semiconductor laser is used to construct an all-optical quantizer for quantization and encoding to generate an all-optical true random number sequence.

[0028] The present invention is an all-optical true random number generator, which is a high-speed, code-rate-tunable all-optical true random number generator that does not require sampling and follow-up processing systems. Device composition. In order to achieve the purpose of quantizing the all-optical true random number entropy source signal into a random code, the device described in the a...

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Abstract

The invention discloses an all-optical true random number generator, which comprises an all-optical true random number entropy source, wherein the all-optical true random number entropy source injects output light of a continuous laser device I into a two-section semiconductor laser device through a 3dB optical fiber coupler I and a light attenuator, produces a high-speed chaos self-pulse signal and controls the repeated frequency of the chaos self-pulse signal by adjusting the light injection intensity and the frequency detuning amount. Sampling and subsequent processing are not required; the additional problem caused by signal distortion because of sampling in the prior art is solved; the complexity of a system is greatly reduced; a code rate can be tuned in a large range by changing the light injection intensity and the frequency detuning amount; and the code rate is up to Gbps and can be directly compatible with a light network.

Description

technical field [0001] The invention relates to a true random number generator, which belongs to the field of communication technology. It is a high-speed, code rate tunable all-optical true random number generator that does not require sampling and subsequent processing, and can be widely used in Monte Carlo (Monte Carlo) Carlo) simulations, statistical sampling, artificial neural networks, and secure communications. technical background [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 (keys) is related to national defense security, financial stability, commercial confidentiality, personal privacy and many other aspects. [0003] Random number generators can be divided into two categories: pseudo-random number generators and true random number generators. [0004] The pseudo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F7/58
Inventor 王云才杨毅彪李璞王安帮张明江张建忠
Owner GUANGDONG UNIV OF TECH
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