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All-optical true random number generator with Tbps-level code rate

A true random number and generator technology, applied in the field of secure communication and cryptography, can solve the problems of low code rate and untunable code rate, achieve high code rate, overcome technical limitations, and overcome additional structural problems

Active Publication Date: 2012-09-19
TAIYUAN UNIV OF TECH
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Problems solved by technology

[0010] The present invention provides a Tbps code rate all-optical true random number generator to solve the problems of low code rate and non-tunable code rate in the prior art, and increase the code rate of the true random number generator to the Tbps level , can fully meet the security needs of modern high-speed secure communication

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  • All-optical true random number generator with Tbps-level code rate
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  • All-optical true random number generator with Tbps-level code rate

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Embodiment Construction

[0026] The specific implementation manners of the present invention will be further described below.

[0027] Implement a kind of Tbps code rate all-optical true random number generator of the present invention, be on the basis of prior art, utilize the pulse signal of the high repetition frequency intensity random undulation that the erbium-doped fiber laser of rational number harmonic mode-locking produces, collectively referred to as random The pulse sequence replaces the chaotic pulse signal emitted by the passively mode-locked fiber laser as the source of all-optical true random number entropy, and then uses quantum dot quarter-wavelength phase-shifting distributed feedback semiconductor lasers to construct an all-optical quantizer to quantify it Encoding to generate an all-optical true random number sequence.

[0028]In the traditional sense or conventional way, those skilled in the relevant fields use rational harmonic mode-locked erbium-doped fiber lasers as ultrashort...

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Abstract

An all-optical true random number generator with a Tbps code rate comprises an all-optical true random number entropy source and an all-optical quantizer, wherein the all-optical true random number entropy source adopts an rational harmonic mode-locked Er-doped fiber ring laser, actually a ring-shaped cavity formed by a lithium niobate electro-optic modulator, an optical band pass filter I, an erbium-doped fiber amplifier, an opto-isolator and an optical coupler which are connected through fiber; and the all-optical quantizer is a quantum dot quarter wave phase-shift distributed feedback type laser. The generator provided by the invention solves the problems that the code rate is too low and untunable in the prior art, has a Tbps-level code rate, is in direct compatible with an optical network, and meets the safety requirements of modern high-speed secure communication.

Description

technical field [0001] The invention relates to an all-optical true random number generator, in particular to an all-optical true random number generator with ultra-high speed and tunable code rate, which is suitable for the fields of secure communication and cryptography. Background technique [0002] With the rapid development of computer technology and communication technology, information has become a very important wealth in today's society. The continuous development of the information society makes people's life closely related to the generation, reception, storage, processing and transmission of information. The combination of commerce, finance and the Internet, as well as the large-scale increase in the transmission rate of modern communications, pose a huge challenge to cryptography and information security. [0003] Random numbers have very important applications in the fields of modern secure communication and cryptography, and are the core components of hardwar...

Claims

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Application Information

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IPC IPC(8): G06F7/58H01S3/067
Inventor 李璞王云才王安帮王文杰梁丽萍
Owner TAIYUAN UNIV OF TECH
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