Inhibit the transmission structure of spiking signals
Technical field
The utility model belongs to message structure field, more particularly to inhibits the transmission structure of spiking signals.
Background technology
Artificial neural network is related to multiple subjects such as information science, brain science, Neuropsychology, is to human brain or biology god
Abstract and modeling through network is intelligence science and the important component of computational intelligence, it is mainly with brain science and cognition god
Based on achievement in research through science, to automatically control to solve challenge and realization and provide effective way, thus from 20
The research hotspot of artificial intelligence field is gradually become since the 80's of century.
Currently, the developed countries such as America and Europe pay much attention to the development in artificial neural network field, and successively start multinomial heavy
Point project.Early in 2005, European Union started one on supercomputer " Blue Gene " to realize virtual brain as target
Science plan.Then, " human brain plan " was determined as one of following emerging technology Flagship by them in 2013, with this
Meanwhile the U.S. starts the brain of entitled " being studied using the human brain of advanced innovation type Neural Technology " in 100,000,000 dollars of investment in 2013
Planning item.
Under the support of above-mentioned planning item, field of neural networks have been achieved for a series of significant great researchs at
Fruit, such as the Neurogrid of Stanford University, the Truenorth of IBM Corporation, the HICANN of Heidelberg University, Manchester
Neuromorphic chips of university etc..These important achievements have confirmed that the great potential of artificial neural network technology, and
The development of Future Information processing apparatus has been pushed significantly.However, the correlative study of artificial nerve network model mainly focuses at present
In the realization method of the electricity such as CMOS analog circuits, modern super large integrated circuit, although these imitative Neural Technologies can be effectively treated
The crawler behavior of biological neural, but above-mentioned imitative nervous system is limited by bandwidth, distance, power consumption and hinders its application range.
In recent years, the light based on semiconductor optical amplifier, optical fiber laser, photonic crystal chamber, semiconductor laser etc.
Sub- neural model is proposed that these photon neural models can inspire the response letter of 7 to 9 magnitudes faster than biological neural in succession
Number.
Specifically, Tai Te team in Princeton Alexandria had developed global first photon god in 2016
Through form chip, and prove that the chip can be calculated with ultrafast speed.Above-mentioned achievement fully confirms photon neural model
Huge applications potentiality.It is based on for the photon neural model of semiconductor laser, different photon neural models is carried
Go out, such as the photon neural model based on micro-loop, quantum dot, two-part, vertical cavity surface emitting laser (VCSEL).
In these photon neural models based on semiconductor laser, because VCSEL have low cost, low energy consumption, be easy to
Some unique advantages such as two-dimensional array and the high coupling efficiency of optical fiber are integrated into, thus its corresponding photon neural model is
It has been subjected to extensive concern.
The developing direction of present neural network is interrelated, the raising nerve explored in neural network between each neuron
The information handling rate of member.
Impulsive neural networks (Spiking Neuron Networks SNN)
The spiking neural networks for being known as " third generation neural network " are Neuscience, and the one of computational intelligence field is big
Important research achievement, it is the nonlinear system that information is continuously transmitted at any time between capable of effectively simulating biological neuron.It should
System uses time encoding mode organizational information, can simulate the information processing mechanism of true biological clock, compare traditional neural network
Closer to practical biological nervous system.
The task of impulsive neural networks is that the pulse train of input neuron is processed, and generates new pulse train and defeated
Go out neuron.It is well known that biological neuron may excite under outside stimulus or inhibit spiking signals, and it is this
Spiking responses can be transmitted between two neurons, and the spiking response characteristics of each neuron are to research god in neural network
Information handling rate through interdependence and neuron between member has positive effect.Therefore, for VCSEL photon god
For, exploring the related key technical research of spiking signal inhibition responses transmission controllable between this neuron seems
It is particularly important.
Invention content
The purpose of this utility model mainly the development of current artificial neural network there are the problem of, provide and inhibit spiking letters
Number transmission structure, can realize the alternating transmission of the spikes signals inhibited between two photon nerves.
The utility model uses following organization plan:
Inhibit the transmission structure of spiking signals, it includes external disturbance signal generator module, VCSEL photon nerve moulds
Block, control and analysis test module;
The external disturbance signal generator module includes tunable laser, Polarization Controller, signal generator, Mach-
Zeng Deer modulators, isolator, the VCSEL photon nerve modules include VCSEL, temperature controller, current controller;
The optical signal that tunable laser I 1 occurs is connected with I 2 optical signal of Polarization Controller, Polarization Controller I 2 and Mach-
I 4 optical signal of Zeng Deer modulators is connected, and Mach-Zehnder modulators I 4 are connected with II 5 optical signal of Polarization Controller, polarization control
Device II 5 processed is connected with I 6 optical signal of isolator, isolator I 6 is connected with I 7 optical signal of coupler, coupler I 7 and VCSEL I 10
Optical signal is connected, and signal generator I 3 is connected with I 4 electric signal of Mach-Zehnder modulators, current controller I 8 and VCSEL I
The connection of 10 electric signals, temperature controller I 9 are connected with I 10 electric signals of VCSEL;
Tunable laser II 14 occur optical signal connect with V 15 optical signal of Polarization Controller, Polarization Controller V 15 and
II 16 optical signal of Mach-Zehnder modulators connects, and Mach-Zehnder modulators II 16 connect with IV 18 optical signal of Polarization Controller
It connects, Polarization Controller IV 18 is connect with II 19 optical signal of isolator, and isolator II 19 is connected with III 20 optical signal of coupler, coupling
Device III 20 is connected with II 21 optical signals of VCSEL, and signal generator II 17 is connected with II 16 electric signal of Mach-Zehnder modulators,
Current controller II 23 is connect with II 21 electric signals of VCSEL, and temperature controller II 22 is connected with II 21 electric signals of VCSEL;
Coupler I 7 is connect with III 11 optical signal of Polarization Controller, Polarization Controller III 11 and II 12 optical signal phase of coupler
Even, coupler II 12 is connected with 13 optical signal of adjustable attenuator, and adjustable attenuator 13 is connected with III 20 optical signal of coupler.
Further include control and analysis test module comprising spectrometer 24, real-time oscilloscope 25, light power meter 26;
Coupler I 7, coupler II 12, coupler III 20 are connected with 24 optical signal of spectrometer respectively, coupler I 7, coupling
Device II 12, coupler III 20 are connected with 25 optical signal of real-time oscilloscope respectively, coupler I 7, coupler II 12, coupler III 20
It is connected respectively with 26 optical signal of light power meter, spectrometer 24, real-time oscilloscope 25, light power meter 26 pass through data collecting card point
It is not connected with the computer for being equipped with data analysis module 27 and control and regulation module 28, and passes through computer-internal
Labview realizes control.
Tunable laser I 1, signal generator I 3, current controller I 8, temperature controller I 9, tunable laser II 14,
Signal generator II 17, temperature controller II 22, current controller II 23 by data collecting card and are equipped with data analysis mould
Block 27 is connected with the computer for controlling to adjust module 28, and computer manages above-mentioned each portion by internal Labview softwares control
The parameter setting divided, to realize to the control of system and the analysis of experimental data.
The VCSEL I 10, II 21 wavelength of VCSEL are 1300nm.
The utility model has the following advantages:
1, this spiking signal transmission structures can get using 1300nm VCSEL as photon neural model than biology
The spiking signals of the fast at least eight magnitude of neural response;
2, this spiking signal transmission structures use 1300nm VCSEL as photon neural model, can be outer by controlling
Mismatching angle effectively inhibits photon between intensity, signal duration and the disturbing signal and VCSEL output signals of portion's disturbing signal
The spiking signals of nerve excitation.
3, this spiking signal transmission structures use mutual coupling structure, it can be achieved that the spiking inhibited between two photon nerves
The transmitted in both directions of signal realizes the interaction of information between two neurons.
4, the operation wavelength for the VCSEL that this spiking signal transmission structures use, can be with existing fiber system for 1300nm
It is compatible, be conducive to the practicalization for pushing VCSEL photon nerves.
5, this spiking signal transmission structures have at low cost, energy using 1300nm VCSEL as photon neural model
The features such as small is consumed, is conducive to build photon neural network.
Description of the drawings
A kind of knot of the Transmission system of inhibition spiking signals controllable between two mutual coupling VCSELs photon nerves Fig. 1
Structure block diagram;
Fig. 2 is the specific operation principle block diagram of whole system.
In figure:1- tunable lasers I, 2- Polarization Controllers I, 3- signal generators I, 4- Mach-Zehnder modulators I,
5- Polarization Controllers II, 6- isolators 1,7- couplers I, 8- current controllers I, 9- temperature controllers I, 10-VCSEL I, 11-
Polarization Controller III, 12- couplers II, 13- adjustable attenuators, 14- tunable lasers II, 15- Polarization Controllers V, 16-
Mach-Zehnder modulators II, 17- signal generators II, 18- Polarization Controllers IV, 19- isolators II, 20- couplers III,
21-VCSEL II, 22- temperature controllers II, 23- current controllers II, 24- spectrometers, 25- real-time oscilloscopes, 26- luminous powers
Meter, 27- data analysis modules, 28- control to adjust module.
Specific implementation mode
To keep the purpose of this utility model, organization plan and advantage clearer, below structure side in the utility model
Case is clearly and completely described, it is clear that and described embodiment is the utility model a part of the embodiment, rather than all
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, shall fall within the protection scope of the present invention.
Inhibit the basic principle of the transmission structure of spiking signals:
Being continuously injected into light first with outside makes first VCSEL photon be operated in the continuous workspaces spiking, so
External disturbance signal, the intensity by control disturbance signal and duration, the VCSEL photons is added in being continuously injected into light afterwards
The spikes signals that nerve generates are totally constrained in entire external disturbance signal workspace.This VCSEL photon nerve generates
Quenchable spikes signals be injected into second VCSEL photon nerve, by the intensity, detuning for suitably adjusting injection light
Amount and polarization state can make second VCSEL photon nerve generate with it is quenchable as first VCSEL photon neural class
Spikes signals.Since the system uses the symmetrical structure of mutual coupling, thus it is similar with first VCSEL photon nerve, second
VCSEL photons nerve can also generate quenchable spikes signals under the effect of external disturbing signal, this signal is injected into
First VCSEL photon nerve can be equally set to obtain quenchable spikes signals after first VCSEL photon nerve.By
This is as it can be seen that can be achieved the transmission of the spiking signals inhibited between two VCSEL photon nerves.
As shown in Figs. 1-2,
Embodiment 1:The first working method of the utility model:
Inhibit the transmission structure of spiking signals, it includes external disturbance signal generator module, VCSEL photon nerve moulds
Block, control and analysis test module;
The external disturbance signal generator module includes tunable laser, Polarization Controller, signal generator, Mach-
Zeng Deer modulators, isolator, the VCSEL photon nerve modules include VCSEL, temperature controller, current controller;
The optical signal that tunable laser I 1 occurs passes through Polarization Controller I 2, Mach-Zehnder modulators I 4, Polarization Control
Device II 5, isolator I 6, coupler I 7 inject VCSEL I 10, and adjust current controller I 8, to control VCSEL's I 10
Size of current adjusts temperature controller I 9 to control the temperature of VCSEL I 10, so that VCSEL I 10 is generated continuous
Spiking signals, Regulate signal generator I 3 control Mach-Zehnder modulators I 4, to adjust the strong of external disturbance signal
Degree and duration, the spikes signals for reaching the generation of VCSEL photon nerves are complete in entire external disturbance signal workspace
Inhibit;
Meanwhile the optical signals that generate of VCSEL I 10 pass through coupler I 7, Polarization Controller III 11, coupler II 12, adjustable
Attenuator 13, coupler III 20 inject VCSEL II 21, by adjusting adjustable attenuator 13, current controller II 22 and temperature
Controller II 23, to make VCSEL II 21 generate with it is quenchable as first I 10 photon neural class of VCSEL
Spikes signals.
The control mode of the utility model embodiment 1, which is adopted, computerizeds control, and computer-internal includes data analysis module
27 and module 28 is controlled to adjust, computer acquires spectrometer 24, real-time oscilloscope 25, light power meter 26 by data collecting card
Data information.
Since coupler I 7, coupler II 12, coupler III 20 are connected with 24 optical signal of spectrometer respectively, coupler I 7,
Coupler II 12, coupler III 20 are connected with 25 optical signal of real-time oscilloscope respectively, coupler I 7, coupler II 12, coupler
III 20 are connected with 26 optical signal of light power meter respectively, and computer can be obtained the basic of two VCSELs photon neural output signals
Information.
And computer is further through data collecting card and tunable laser I 1, signal generator I 3, current controller I 8, temperature
Controller I 9 is connected, and it can be seen that each module basic parameter, mould is controlled by the Labview software management of computer-internal
Block, you can adjust and realize that the spikes signals generated are totally constrained in entire external disturbance signal workspace.
Second of working method of 2 the utility model of embodiment:
Tunable laser II 14 occur optical signal by Polarization Controller V 15, Mach-Zehnder modulators II 16, partially
Shake controller IV 18, isolator II 19, the injection VCSEL II 21 of coupler III 20, and Regulate signal generator II 17 passes through control
Mach-Zehnder modulators II 16 adjust current controller II 23 to adjust intensity and the duration of external disturbance signal
To adjust the size of current of current control VCSEL II 21, temperature controller II 22 is adjusted, VCSEL is adjusted to control temperature
II 21 temperature height, reaching makes VCSEL II 21 generate the spikes letters being totally constrained in external disturbing signal workspace
Number;Similarly, the optical signal that VCSEL II 21 is generated passes through coupler III 20, adjustable attenuator 13, coupler II 12, VCSEL I
10, coupler I 7 injects VCSEL I 10, by adjusting adjustable attenuator 13, adjusts current controller I 8, adjusts temperature control
Device I 9, to make VCSEL I 10 generate and quenchable spikes signals as II 21 first photon neural class of VCSEL.
Ibid, the control way to manage of embodiment 2 is identical with embodiment 1
The control mode of the utility model embodiment 2, which is adopted, computerizeds control, and computer-internal includes data analysis module
27 and module 28 is controlled to adjust, computer acquires spectrometer 24, real-time oscilloscope 25, light power meter 26 by data collecting card
Data information.
Since coupler I 7, coupler II 12, coupler III 20 are connected with 24 optical signal of spectrometer respectively, coupler I 7,
Coupler II 12, coupler III 20 are connected with 25 optical signal of real-time oscilloscope respectively, coupler I 7, coupler II 12, coupler
III 20 are connected with 26 optical signal of light power meter respectively, and computer can be obtained the basic of two VCSELs photon neural output signals
Information.
And computer is further through data collecting card and tunable laser II 14, signal generator II 17, temperature controller II
22, current controller II 23 be connected, and it can be seen that each module pre-set parameter, pass through the Labview softwares of computer-internal
Management control module, you can adjust and realize that the spikes signals generated are totally constrained in entire external disturbance signal workspace.
The structure of the utility model:
Inhibit the transmission structure of spiking signals, it includes external disturbance signal generator module, VCSEL photon nerve moulds
Block, control and analysis test module;
The external disturbance signal generator module includes tunable laser, Polarization Controller, signal generator, Mach-
Zeng Deer modulators, isolator, the VCSEL photon nerve modules include VCSEL, temperature controller, current controller;
The optical signal that tunable laser I 1 occurs is connected with I 2 optical signal of Polarization Controller, Polarization Controller I 2 and Mach-
I 4 optical signal of Zeng Deer modulators is connected, and Mach-Zehnder modulators I 4 are connected with II 5 optical signal of Polarization Controller, polarization control
Device II 5 processed is connected with I 6 optical signal of isolator, isolator I 6 is connected with I 7 optical signal of coupler, coupler I 7 and VCSEL I 10
Optical signal is connected, and signal generator I 3 is connected with I 4 electric signal of Mach-Zehnder modulators, current controller I 8 and VCSEL I
The connection of 10 electric signals, temperature controller I 9 are connected with I 10 electric signals of VCSEL;
Tunable laser II 14 occur optical signal connect with V 15 optical signal of Polarization Controller, Polarization Controller V 15 and
II 16 optical signal of Mach-Zehnder modulators connects, and Mach-Zehnder modulators II 16 connect with IV 18 optical signal of Polarization Controller
It connects, Polarization Controller IV 18 is connect with II 19 optical signal of isolator, and isolator II 19 is connected with III 20 optical signal of coupler, coupling
Device III 20 is connected with II 21 optical signals of VCSEL, and signal generator II 17 is connected with II 16 electric signal of Mach-Zehnder modulators,
Current controller II 23 is connect with II 21 electric signals of VCSEL, and temperature controller II 22 is connected with II 21 electric signals of VCSEL;
Coupler I 7 is connect with III 11 optical signal of Polarization Controller, Polarization Controller III 11 and II 12 optical signal phase of coupler
Even, coupler II 12 is connected with 13 optical signal of adjustable attenuator, and adjustable attenuator 13 is connected with III 20 optical signal of coupler.
Using mutual coupling structure, it can be achieved that between two photon nerves spiking signals transmitted in both directions, realize two neurons
Between information interaction.
By controlling the intensity of external disturbance signal, the duration of signal and external injection light and laser output signal
Between mismatching angle effectively to inhibit the spiking signals of photon nerve excitation.
Information can interact transmission between biological neuron, and the purpose using photon nerve is simulation biological neural
Fundamental characteristics, to be used.
Further, further include control and analysis test module comprising spectrometer 24, real-time oscilloscope 25, luminous power
Meter 26;
Coupler I 7, coupler II 12, coupler III 20 are connected with 24 optical signal of spectrometer respectively, coupler I 7, coupling
Device II 12, coupler III 20 are connected with 25 optical signal of real-time oscilloscope respectively, coupler I 7, coupler II 12, coupler III 20
It is connected respectively with 26 optical signal of light power meter, spectrometer 24, real-time oscilloscope 25, light power meter 26 pass through data collecting card point
It is not connected with the computer for being equipped with data analysis module 27 and control and regulation module 28, and passes through computer-internal
Labview realizes control.
Further, the tunable laser I 1, signal generator I 3, current controller I 8, temperature controller I 9, can
Adjusting laser II 14, signal generator II 17, temperature controller II 22, current controller II 23 pass through data collecting card and installation
There is data analysis module 27 to be connected with the computer for controlling to adjust module 28, computer is controlled by internal Labview softwares
The parameter setting for managing each part mentioned above, to realize to the control of system and the analysis of experimental data.
Further, the VCSEL I 10, II 21 wavelength of VCSEL are 1300nm.
The operation wavelength for the VCSEL that spiking signal transmission structures use, can be simultaneous with existing fiber system for 1300nm
Hold, is conducive to the practicalization for pushing VCSEL photon nerves.
Finally it should be noted that:Above example is only to illustrate the organization plan of the utility model, rather than its limitations;
Although the utility model is described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that:
It can still modify to the organization plan recorded in foregoing embodiments, or which part structure feature is carried out etc.
With replacement;And these modifications or replacements, so that the essence of corresponding construction scheme is detached from various embodiments of the utility model structure
The spirit and scope of scheme.