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Chaotic signal production method and device based on uncertainty quantum noise

A technology of quantum noise and chaotic signals, which is applied in photon quantum communication, devices for controlling output parameters of lasers, electromagnetic wave transmission systems, etc., can solve problems such as deterministic delay characteristics, improve bandwidth, solve deterministic delay characteristics, The effect of broadening the field of application

Active Publication Date: 2018-10-26
山西墨丘利科技有限公司
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Problems solved by technology

[0005] The present invention overcomes the deficiencies in the prior art, and the technical problem to be solved is: to provide a method and device for generating a chaotic signal based on non-deterministic quantum noise, so as to solve the problem of deterministic delay characteristics in the existing chaotic signal generating system

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Embodiment Construction

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are part of the embodiments of the present invention, rather than All the embodiments; based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative work all belong to the protection scope of the present invention.

[0030]The embodiment of the present invention provides a chaotic signal generation method based on non-deterministic quantum noise, including the following steps:

[0031] S1. Prepare a chaotic light source, a slave laser and a signal laser that can emit a chaotic light field;

[0032] S2. Inject the chaotic light field emitted by the chaotic light source into the slave laser, observe the output light field of the s...

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Abstract

The invention belongs to the field of the secret communication, and provides the chaotic signal production method and device based on the uncertainty quantum noise. The method comprises the followingsteps: S1, preparing a chaotic light source, a slave laser and a signal laser; S2, injecting the chaotic light field into the slave laser, observing an output light field of the slave laser through aspectrum analyzer, and regulating the intensity and the polarization state of the chaotic light field injected into the slave laser until the output light field of the slave laser is the chaotic lightfield; S3, enabling the light emitted from the signal laser to be incident to a balance homodyne detection system to produce the quantum noise signal, performing frequency mixing on the signal and the radio frequency signal, injecting into a modulation port of the slave laser after passing through the low-pass filter, modulating the slave laser, thereby enabling the output light field of the slave laser to be the chaotic signal with the uncertainty. The delay feature of the chaotic signal can be inhibited, and the method can be extensively applied to the chaotic signal production field.

Description

technical field [0001] The invention relates to a chaotic signal generation device, in particular to a method and device for generating a chaotic signal based on quantum noise non-determinism. Background technique [0002] Chaotic semiconductor laser is nominally an infinite-dimensional dynamical system capable of outputting high-dimensional chaotic signals. On nanosecond timescales, such chaotic laser systems rapidly amplify the inherently noisy random perturbations, making the intensity oscillations of the system output unpredictable. Therefore, chaotic lasers are widely used in many fields such as high-speed secure communication, high-precision ranging radar, optical time domain reflectometer distributed fiber optic sensing, and ultra-fast physical random number generator. In the above applications, the time delay term in the delayed feedback semiconductor system plays a crucial role in turning an isolated semiconductor laser into a high-dimensional chaotic laser, and th...

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Application Information

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IPC IPC(8): H04B10/50H04B10/564H04B10/70H01S5/06
CPCH01S5/06H04B10/505H04B10/5057H04B10/564H04B10/70
Inventor 郭龑强王李静郭晓敏李璞张建国
Owner 山西墨丘利科技有限公司
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