CN109743153A - A kind of two-way long range secret signalling based on silicon photon Chaotic Synchronous - Google Patents
A kind of two-way long range secret signalling based on silicon photon Chaotic Synchronous Download PDFInfo
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Abstract
The present invention provides a kind of two-way long range secret signalling based on silicon photon Chaotic Synchronous, main silicon photon chip generates chaos driving signal, the chaos driving signal is divided into the identical light beam of two beams after amplifier amplifies after the first polarising beam splitter, into the first long-distance optical fiber excessively, second long-distance optical fiber, symmetrical first is injected after transmission simultaneously from silicon photon chip and second from silicon photon chip, the chaos that main silicon photon chip generates drives first as seed signal from silicon photon chip and second from silicon photon chip and them is made to realize Chaotic Synchronous, information is separately added into two synchronous slave silicon photon chips, carry out two-way information communication.Two-way long range chaotic secret communication may be implemented in the present invention.
Description
Technical field
The present invention relates to photoelectric fields to be specifically related to a kind of two-way long range secret communication based on silicon photon Chaotic Synchronous
System.
Background technique
The mankind are currently at the epoch of electronic information fast development, and the mode of information transmitting is ever-changing, application field
It is omnipresent, so communication is completed and privacy problem seems particularly significant.How safety coefficient height and high-efficient guarantor are realized
Close communication also just becomes current social focus of attention.Based on the private communication technology of chaotic laser light for high efficiency, high band
Wide, high-speed secure communication is of great significance.
Chaos is always a hot topic, and realized based on Chaotic Synchronous communication be widely used in technology and
In actual life.So-called synchronization, the track for generally referring to a system will converge on the same point of another system track, and will
It is always maintained at the consistent of mutual step.Earliest synchronia is Huygens in proposition in 1673, this is in a coupling clock
It is observed in pendulum experiment.Later, Chaotic Synchronous (PC synchronous) it is breakthrough be the discovery that nineteen ninety for the first time by Pectoral and
Carroll completes the synchronization of two systems in electronic circuit, and the main discovery of Chaotic Synchronization Theory is so that more and more
Which results in the research booms of academia's confusion for artificial research chaos and its application, for example, nineteen ninety-five Rulkov et al. is proposed
The viewpoint of generalized synchronization in coupled system.Then, researcher also proposed a series of concept of other Chaotic Synchronous, including complete
Synchronous, Phase synchronization, late synchronous is anti-synchronous, Projective Synchronization, group synchronization and generalized synchronization etc..Reason based on Chaotic Synchronous
By in mathematics, physics, biology, the fields such as engineering circles information science and secret communication have a wide range of applications and market
Potential value, and Chaotic Synchronous in the secret communication of chaos using especially prominent, always nonlinear science in recent years
One of research hotspot.
Up to the present, the research of the chaotic secret communication based on Chaotic Synchronous both at home and abroad achieved original research at
Fruit.Nineteen ninety-five, Ljupco.Kocarev propose a kind of improved coding method, illustrate and carry out higher-dimension in a systematic way
Design synchronization system, be synchronized with the coding of the efficient hyperchaos of information.2005, European OCCULT project team utilized full light
Feedback scheme and electro-optical feedback scheme realize the communication in the data transmission in the Athens city of Greece, successfully illustrate true
One-way communication in the world.
Since conventional laser secret signalling generating device is excessively enlarged, it is unfavorable for convenient use.Therefore how
The stability and miniaturization in chaotic laser light source are further increased under micro-scale using integreted phontonics technology, and same using chaos
Step carries out secret communication, is the Chaotic Synchronization Secure technical issues that need to address.
Summary of the invention
To solve the above-mentioned problems, the present invention provide it is a kind of with high stability and miniaturization it is same based on silicon photon chaos
The two-way long range secret signalling of step, including drive module, external environment module；
The drive module includes, main silicon photon chip, the first amplifier, the first polarization beam apparatus, the first semiconductor laser,
First variable attenuator, the first optoisolator；
Institute's external environment module includes, and the first long-distance optical fiber, the second long-distance optical fiber, the 4th long-distance optical fiber, first are from silicon
Photon chip and second from silicon photon chip, the second polarization beam apparatus, the second semiconductor laser, the second amplifier, second can
Become attenuator, the first delayer, the second optoisolator；
Main silicon photon chip generates chaos driving signal, and the chaos driving signal is after the amplification of the first amplifier by first
The identical light beam of two beams is divided into after polarising beam splitter, the identical light beam of two beams is respectively into the first long-distance optical fiber, second excessively
Injection first simultaneously is generated from silicon photon chip and second from silicon photon chip, main silicon photon chip after long-distance optical fiber transmission
Chaos drives first as seed signal from silicon photon chip and second from silicon photon chip and them is made to realize Chaotic Synchronous,
First silicon photon chip generates chaotic signal x(t), second generates Chaotic Synchronous signal y(t from silicon photon chip), by information m
(t) it is added to chaotic signal x(t), reception is sent by the 4th long-distance optical fiber by mixed signal s(t)=x(t)+m(t)
End, subtracts synchronization signal y(t from s(t) in receiving end), obtain information m(t).
It further, further include communication module；
The communication module includes that third long-distance optical fiber, third amplifier, third variable attenuator, photo-coupler, second prolong
When device and third optoisolator.
The beneficial effects of the invention are as follows
1 present invention realizes that chaos generation device is integrated, effectively guarantees the stability in chaos source, it is small-sized to solve chaos source
The problem of change.
2 technology present invention utilizes CMOS Application of integrated circuit in silicon integreted phontonics field effectively reduces cost.
3 present invention have ductility, and two-way long range chaotic secret communication may be implemented.
Detailed description of the invention
The two-way long range secret signalling schematic illustration of Fig. 1.
The main silicon photon chip chaos time sequence figure of Fig. 2 and injection intensity related coefficient result schematic diagram.
Association results schematic diagram between the synchronous evolution diagram of Fig. 3 and chaotic signal.
The central principle system diagram and simulation result schematic diagram of the two-way chaotic communication system of Fig. 4.
The length of Fig. 5 fiber spool influences schematic diagram to communication quality.
Specific embodiment
The working principle of the invention: the nonlinear kinetics based on silicon photon chaos source, the present invention inject differential using light
Equation carries out numerical simulation, four equations respectively represent the light field of silicon photon inner cavity, dynamic displacement, free carrier density with
And the variation of cavity temperature, light inject the characteristics of be intra-cavity light field intensity；For main silicon photon and from the setting of silicon photon parameter
In, major parameter be not both optical power injection, in main silicon photon inner cavity, the optical power of injection is 1*10-3, and two from
The injection of optical power is input and the sum of the distribution of light intensity of main silicon photon of the optical power on basis in silicon photon inner cavity.By quadravalence
The differential equation of Runge-Kutta can produce the chaotic signal of driving in main silicon photon chip.Signal is put by amplifier (A)
Be divided into the identical light beam of two beams after big after beam splitter (PBS), light beam after long-distance optical fiber (F1, F2) transmission simultaneously
Injection two is symmetrically from silicon photon chip (both) S-OMC1 and S-OMC2.By under continuous Driver injection strength condition,
The chaotic signal generated in main silicon photon chip can make two to form in addition complicated chaotic dynamics from silicon photon chip
And achieve the synchronization of chaos.Then, the transmission information of two-way is separately added into from silicon photon chip at two, due to pass
The modulation depth of defeated information is relatively low, in this way can be with so the mixed signal in the transmission process of long range is still chaos
Effectively achieve communication security.Due to the Chaotic Synchronous of two high quality from silicon photon chip, two-way information is received
It is recovered well respectively afterwards, to complete communication system.
This patent realizes the chaos source generated in silicon photon chip, and device realizes integrated, and the seed of generation is mixed
It is ignorant that other two chaos generation device can be driven to generate chaos, and realize the Chaotic Synchronous of high quality, it can effectively transmit
Information and demodulation restore information, are a kind of novel secret signallings.
As Fig. 1 presents the conceptual scheme of chaotic communication system of the present invention: wherein M-OMC is main silicon photon chip；S-OMC is
From silicon photon chip；SL is semiconductor laser；PBS is polarization beam apparatus；VA is variable attenuator；OC is photo-coupler；OI
For optoisolator；E/D is encryption/demodulation module；F is fiber turns；A is amplifier；TD is time delay；M is encryption information；M ' is
Decoded information
Under the conditions of suitable external optical injection, main silicon photon chip can produce chaos driving signal, and signal passes through amplifier
(A) the identical light beam of two beams is divided into after amplifying after beam splitter (PBS), light beam is transmitted through long-distance optical fiber (F1, F2)
Injection two simultaneously is symmetrically from silicon photon chip S-OMC1 and S-OMC2 afterwards.Under the conditions of suitable injection intensity, main silicon light
The chaos that sub- chip (M-OMC) generates drives S-OMC1 and S-OMC2 to form complicated chaotic dynamics system as seed signal
Unite and them made to realize Chaotic Synchronous, however M-OMC and S-OMCs(both two from silicon photon chip S-OMC1 and S-OMC2) it
Between correlation it is very low, on this basis, two synchronous S-OMCs are separately added into information, carry out two-way information communication, warp
The optical fiber (F4) of long-distance transmits, and information can be very good to be resumed out, so as to complete secret communication.
Two are respectively arranged at the both ends communicated with each other in communication system from silicon photon chip.
Such as the main silicon photon chip chaos time sequence figure of Fig. 2 and injection intensity related coefficient result schematic diagram: suitable
Parameter setting under, 2 (a) show the chaotic waves of M-OMC.With the continuous injection of M-OMC chaos wave, it is in 2 (b)
Correlation maximum evolution curve between S-OMC1 and S-OMC2 and S-OMC1 and S-OMC2 and M-OMC is showed: most upper in figure
The evolution of correlation maximum of the surface curve between S-OMC1 and S-OMC2, intermediate evolution curve is (with S-OMC1 and S-
OMC2 evolution curve initial value is identical) it is M-OMC and S-OMC2, nethermost evolution curve is M-OMC and S-OMC1；From evolution
Curve it can be seen that being continuously increased with injection intensity, S-OMC1 and S-OMC2 and S-OMC1 and S-OMC2 and M-OMC it
Between correlation maximum develop it is whole it is continuous before this increase, the range for the value that tends towards stability later；It is in injection intensity range
Some value between 0.55%-0.6%, can make the synchronism between S-OMC1 and S-OMC2 reach best, maximum value 1, so
And the correlation maximum between S-OMC1 and S-OMC2 and M-OMC is relatively low, correlation is poor, this is just S-OMC1 and S-
Communication between OMC2 is laid a good foundation.
As shown in association results figure between the synchronous evolution diagram of Fig. 3 and chaotic signal: mixed between M-OMC and S-OMCs
Ignorant evolution is as shown in Fig. 3 (a).Firstly, Fig. 3 (a1) shows the evolution between M-OMC and S-OMC1, Fig. 3 (a2) shows M-
Differentiation between OMC and S-OMC2, it can be seen that the evolution between M-OMC and S-OMCs is still chaos, then M-OMC and S-
The quality for having poor Chaotic Synchronous between OMCs.Show that the Chaotic Synchronous between S-OMCs develops at (a3) in Fig. 3,
Curve gradually flattens and eventually becomes zero, it can be seen that the chaos of S-OMCs is finally reached synchronization.It is presented in Fig. 3 (b-c)
The related coefficient figure of related point diagram and different time shifts, the correlation of OM chamber is quantitatively evaluated.In Fig. 3 (b1-b2 and c1-c2) institute
Show, the related point diagram between M-OMC and S-OMCs is diverging, and Chaotic Synchronous is poor, however S-OMCs in Fig. 3 (b3-c3)
Related point diagram is more concentrated, and maximum correlation coefficient can achieve 1, illustrates the Chaotic Synchronous of high quality between S-OMCs, this height
Chaotic communication of the Chaotic Synchronous of quality between S-OMCs provides the foundation.
The central principle system diagram and simulation result diagram of the two-way chaotic communication system of Fig. 4: it gives S-OMCs's
Chaotic secret communication figure: Fig. 4 (a) shows the scheme using the synchronous information encryption of the high quality between S-OMCs.Emitting
End, two synchronous chaos signal x(t) and y(t), information m(t) it is added to x(t), mixed signal s(t)=x(t)+m(t) quilt
It is sent to recipient.In receiving end, due to x(t) and synchronism y(t), synchronization signal y(t is subtracted from s(t)), information m
(t) it is resumed.Fig. 4 (b) corresponds to information 1, and Fig. 4 (c) corresponds to information 2, and Fig. 4 (b1, c1) is the base for the 50Mb/s to be transmitted
Information, in the chaotic signal of two Information hidings S-OMC1 and S-OMC2 shown in Fig. 4 (b2, c2).Fig. 4 (b3, c3) and
Fig. 4 (b4, c4) gives decoded information and corresponding eye figure.It can be seen that the signal effect recovered is fine from eye figure, have
Secret communication is completed to effect, and it is high-efficient to maintain secrecy, it is either inherently safe for pre- anti-hacking or lifting system
Performance is all of great significance.
The length of Fig. 5 fiber spool gives influence of the length to communication quality of optical fiber to communication quality influence diagram: such as
Shown in Fig. 5, the non-linear transmission to information of channel has a certain impact in communication system, however the length of fiber spool also can
Influence communication, Fig. 5 give transmission fiber channel length from 100km to 600km corresponding Q value and 200km, 400km and
The corresponding eye figure of 600km, Fig. 5 (b) correspond to information 1, and Fig. 5 (c) corresponds to information 2, from figure it can be seen that the Q value of decoded information
Reduce with the increase of fiber distance, illustrate that the length of optical fiber in transmission has a certain impact to the transmission of information, presents anti-
It is related.
Apparatus of the present invention propose " same based on silicon photon chaos aiming at the problem that Chaotic Synchronization Secure system compact
The two-way long range chaotic secret communication system of step " takes the lead in completing two-way long range using the Chaotic Synchronous based on silicon photon
Secret communication.The technology integrated using silicon generates the stable chaos of high speed, so that chaos source generating device in silicon photon chip
It is exquisite convenient, miniaturization and the dexterity in chaos source are realized, the chaotic signal of generation is by nonlinear system driving other two
A chaos device makes it generate chaos, under suitable parameter, reaches Chaotic Synchronous, and two-way using Chaotic Synchronous completion
Long range chaotic secret communication.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it is still
Documented technical solution is modified in foregoing embodiments, or is equal to some or all of the technical features
Replacement；And these are modified or replaceed, the technical solution for various embodiments of the present invention that it does not separate the essence of the corresponding technical solution
Range, should all cover within the scope of the claims and the description of the invention.
Claims (2)
1. a kind of two-way long range secret signalling based on silicon photon Chaotic Synchronous, which is characterized in that including drive module,
External environment module；
The drive module includes, main silicon photon chip, the first amplifier, the first polarization beam apparatus, the first semiconductor laser,
First variable attenuator, the first optoisolator；
The external environment module includes, the first long-distance optical fiber, the second long-distance optical fiber, the 4th long-distance optical fiber, first from
Silicon photon chip and second is from silicon photon chip, the second polarization beam apparatus, the second semiconductor laser, the second amplifier, second
Variable attenuator, the first delayer, the second optoisolator；
Main silicon photon chip generates chaos driving signal, and the chaos driving signal is after the amplification of the first amplifier by first
The identical light beam of two beams is divided into after polarising beam splitter, the identical light beam of two beams is respectively into the first long-distance optical fiber, second excessively
Injection first simultaneously is generated from silicon photon chip and second from silicon photon chip, main silicon photon chip after long-distance optical fiber transmission
Chaos drives first as seed signal from silicon photon chip and second from silicon photon chip and them is made to realize Chaotic Synchronous,
First silicon photon chip generates chaotic signal x(t), second generates Chaotic Synchronous signal y(t from silicon photon chip), by information m
(t) it is added to chaotic signal x(t), reception is sent by the 4th long-distance optical fiber by mixed signal s(t)=x(t)+m(t)
End, subtracts synchronization signal y(t from s(t) in receiving end), obtain information m(t).
2. a kind of two-way long range secret signalling based on silicon photon Chaotic Synchronous as described in claim 1, feature
It is, further includes communication module；
The communication module includes that third long-distance optical fiber, third amplifier, third variable attenuator, photo-coupler, second prolong
When device and third optoisolator.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111970105A (en) * | 2020-08-18 | 2020-11-20 | 五邑大学 | Four-channel ultra-high-speed bidirectional OTDM secret communication system |
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| EP1179912A1 (en) * | 2000-08-09 | 2002-02-13 | STMicroelectronics S.r.l. | Chaotic encryption |
| CN107566108A (en) * | 2017-09-15 | 2018-01-09 | 西南大学 | A kind of secret signalling based on silicon photon chaos source |
| CN107689862A (en) * | 2016-08-03 | 2018-02-13 | 西南大学 | A kind of low the association long range optical chaos synchronous method and device of the injection of multichannel light |
| US10193720B1 (en) * | 2017-09-29 | 2019-01-29 | The United States Of America, As Represented By The Secretary Of The Army | Chaotically modulated communications with switched-capacitance resistance tuning |
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2019
- 2019-03-13 CN CN201910066610.4A patent/CN109743153A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1179912A1 (en) * | 2000-08-09 | 2002-02-13 | STMicroelectronics S.r.l. | Chaotic encryption |
| CN107689862A (en) * | 2016-08-03 | 2018-02-13 | 西南大学 | A kind of low the association long range optical chaos synchronous method and device of the injection of multichannel light |
| CN107566108A (en) * | 2017-09-15 | 2018-01-09 | 西南大学 | A kind of secret signalling based on silicon photon chaos source |
| US10193720B1 (en) * | 2017-09-29 | 2019-01-29 | The United States Of America, As Represented By The Secretary Of The Army | Chaotically modulated communications with switched-capacitance resistance tuning |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111970105A (en) * | 2020-08-18 | 2020-11-20 | 五邑大学 | Four-channel ultra-high-speed bidirectional OTDM secret communication system |
| WO2022037245A1 (en) * | 2020-08-18 | 2022-02-24 | 五邑大学 | Four-channel ultra-high-speed two-way otdm secure communication system |
| CN111970105B (en) * | 2020-08-18 | 2023-06-23 | 五邑大学 | Four-channel ultra-high-speed bidirectional OTDM secret communication system |
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