CN104360561B - Based on the bistable all-optical XOR logic door of vertical coupled micro-loop laser optical - Google Patents
Based on the bistable all-optical XOR logic door of vertical coupled micro-loop laser optical Download PDFInfo
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- CN104360561B CN104360561B CN201410629019.2A CN201410629019A CN104360561B CN 104360561 B CN104360561 B CN 104360561B CN 201410629019 A CN201410629019 A CN 201410629019A CN 104360561 B CN104360561 B CN 104360561B
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F3/00—Optical logic elements; Optical bistable devices
- G02F3/02—Optical bistable devices
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/30—Structure or shape of the active region; Materials used for the active region
- H01S5/34—Structure or shape of the active region; Materials used for the active region comprising quantum well or superlattice structures, e.g. single quantum well [SQW] lasers, multiple quantum well [MQW] lasers or graded index separate confinement heterostructure [GRINSCH] lasers
- H01S5/343—Structure or shape of the active region; Materials used for the active region comprising quantum well or superlattice structures, e.g. single quantum well [SQW] lasers, multiple quantum well [MQW] lasers or graded index separate confinement heterostructure [GRINSCH] lasers in AIIIBV compounds, e.g. AlGaAs-laser, InP-based laser
- H01S5/3434—Structure or shape of the active region; Materials used for the active region comprising quantum well or superlattice structures, e.g. single quantum well [SQW] lasers, multiple quantum well [MQW] lasers or graded index separate confinement heterostructure [GRINSCH] lasers in AIIIBV compounds, e.g. AlGaAs-laser, InP-based laser with a well layer comprising at least both As and P as V-compounds
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Abstract
The invention discloses one kind based on the bistable all-optical XOR logic door of vertical coupled micro-loop laser optical, input optical signal is coupled into the first micro-ring resonant cavity by first, second Nanowire Waveguides by first, second directional coupler respectively, and logical operation is carried out wherein, the output optical signal obtained by computing is coupled into the first Nanowire Waveguides by the first micro-ring resonant cavity by first direction coupler；Input optical signal is coupled into the second micro-ring resonant cavity by the three, the 4th Nanowire Waveguides by the 3rd, fourth direction coupler respectively, and corresponding logical operation is carried out, the output optical signal obtained by computing is coupled into the 4th Nanowire Waveguides by the second micro-ring resonant cavity by fourth direction coupler；Firstth, the output optical signal of the 4th Nanowire Waveguides exports operation result after the 3rd Y-branch coupler closes beam.The achievable high-performance of the present invention, low-loss all-optical XOR logic door；Effectively the lateral dimension of reduction device, is advantageously implemented highdensity device integrated.
Description
Technical field
Vertical coupled micro-loop laser optical is based on the present invention relates to all-optical logic operations devices field, more particularly to one kind
Bistable all-optical XOR logic door.
Background technology
With developing rapidly for global network speed, the transmission capacity and information processing capability of optic communication are proposed higher
Requirement.Because conventional optical communication systems have the problems such as bulky, complicated, energy consumption is high, it is difficult to adapt to network speed
The requirement developed rapidly with energy-saving and environment friendly of degree, so one of basic method solved the above problems is exactly to build photoelectron
Integrated chip, is handled and is exchanged to signal directly in area of light.
All-optical XOR logic door is as one of most important logic function in light information processing unit, and it is that binary system half adds
The basic building block of device and interrelated logic arithmetic element.Therefore, high speed, low-loss full light exclusive logic door how are designed, and
The single-chip integration for realizing it and other logic function units is the study hotspot in optical information processing and all optical communication field.
At present, it has been suggested that a variety of to be based on semiconductor optical amplifier (SOA), photonic crystal waveguide, MOEMS
(MOEMS), micro-ring resonator and the isostructural full light exclusive logic door of ring laser, and obtain experimental verification.With it is other
The gate of structure is compared, and the full light exclusive logic door based on ring laser configuration has simple and compact for structure, switch energy
Measure that low, output extinction ratio is high, working stability, it is compatible with semiconductor technology the advantages of.And with the raising of operating rate, device
Size and power consumption can be reduced further, thus than complete based on semiconductor optical amplifier (SOA) and MOEMS (MOEMS)
Optical logic gate is more suitable for large-scale integrated.
Recently, Yu Siyuan et al. has carried out system research to the micro-loop laser of lateral coupled structure, elaborates therein
The origin of the basic physical phenomenon such as nonlinear optical effect and optical bistability, and the optical bistability based on micro-loop laser is real
All-optical XOR logic door is showed.However, the ring resonator of side-coupled micro-loop laser and input/output waveguide be in it is same
Plane, both material structures are identical, thus the absorption loss of input/output waveguide is big.In addition, in order to realize waveguide with
Efficient coupling between ring resonator, the coupling spacing of the two is minimum (0.1~0.3 μm), thus must be exposed using electron beam
The semiconductor manufacturing equipments such as light, sense coupling.This not only causes prepared by device costly, and technique essence
Degree is also difficult to control to.
The content of the invention
The invention provides one kind based on the bistable all-optical XOR logic door of vertical coupled micro-loop laser optical, this hair
Bright use polymer/group Ⅲ-Ⅴ compound semiconductor composite system, design, realize that technology difficulty is low, light loss is small,
And the all-optical logic gates compatible with semiconductor preparing process, it is described below：
One kind is based on the bistable all-optical XOR logic door of vertical coupled micro-loop laser optical, including：First Y-branch coupling
Clutch and the second Y-branch coupler,
Conjunction beam termination input signal A, the Liang Ge branches of the first Y-branch coupler meet the first attenuator and the 3rd respectively
Attenuator, conjunction beam termination input signal B, the Liang Ge branches of the second Y-branch coupler meet the second attenuator and the 4th respectively
Attenuator；
The input of the Nanowire Waveguides of another termination first of first attenuator, the other end of second attenuator
The input of the second Nanowire Waveguides is connect, the input of the Nanowire Waveguides of another termination the 3rd of the 3rd attenuator is described
The input of the Nanowire Waveguides of another termination the 4th of 4th attenuator；
First Nanowire Waveguides and second Nanowire Waveguides pass through first direction coupler and second party respectively
Input optical signal is coupled into the first micro-ring resonant cavity to coupler, and carries out corresponding logical operation, described first wherein
Output optical signal obtained by computing is coupled into the first nano wire ripple by micro-ring resonant cavity by the first direction coupler
Lead；
3rd Nanowire Waveguides and the 4th Nanowire Waveguides pass through third direction coupler and four directions respectively
Input optical signal is coupled into the second micro-ring resonant cavity to coupler, and carries out corresponding logical operation, second micro-loop is humorous
Output optical signal obtained by computing is coupled into the 4th Nanowire Waveguides by the chamber that shakes by the fourth direction coupler；
The output optical signal of first Nanowire Waveguides and the 4th Nanowire Waveguides passes through the 3rd Y-branch coupler
Close after beam, export operation result.
First Nanowire Waveguides, second Nanowire Waveguides, the 3rd Nanowire Waveguides, described 4th nanometer
Line waveguide, the first Y-branch coupler, the second Y-branch coupler and the 3rd Y-branch coupler are in same plane
It is interior.
First micro-ring resonant cavity is adjacent below first Nanowire Waveguides and second Nanowire Waveguides
In plane, and positioned between first Nanowire Waveguides and second Nanowire Waveguides；Second micro-ring resonant cavity exists
In adjacent plane below 3rd Nanowire Waveguides and the 4th Nanowire Waveguides, and positioned at the 3rd nano wire ripple
Lead between the 4th Nanowire Waveguides.
First Nanowire Waveguides, second Nanowire Waveguides, the 3rd Nanowire Waveguides, described 4th nanometer
Line waveguide, first micro-ring resonant cavity, second micro-ring resonant cavity, the first Y-branch coupler, the 2nd Y divide
Branch coupler, the 3rd Y-branch coupler and use bar shaped or ridge waveguide structure, above-mentioned bar shaped or ridge waveguide structure
It is satisfied by single mode transport condition.
Being made on each micro- ring resonator has corresponding P-type electrode and N-type electrode, the first micro-ring resonant cavity, corresponding
P-type electrode and N-type electrode constitute the first micro-loop laser, the second micro-ring resonant cavity, corresponding P-type electrode and N-type electrode structure
Into the second micro-loop laser.
The beneficial effect for the technical scheme that the present invention is provided is：
1st, the present invention realizes the logic function of full light XOR using the optical bistability characteristics of micro-loop laser.
2nd, low-loss polymer optical wave guide is prepared on group Ⅲ-Ⅴ compound semiconductor micro-loop laser, by III-V race
The small advantage of the superior characteristics of luminescence of compound semiconductor and polymer waveguide easy-formation, loss is combined together, and height can be achieved
Performance, low-loss all-optical XOR logic door.
3rd, the all-optical XOR logic door realized using vertical coupled micro-loop laser structure belongs to three-dimensional integrated device, can have
The lateral dimension of effect reduction device, is advantageously implemented the High Density Integration of device.
4th, the all-optical XOR logic door realized using the technical program have that technique is simple, cost is low, switch energy is low and
High reliability, is conducive to practical application.
Brief description of the drawings
Fig. 1 is a kind of structural representation based on the bistable all-optical XOR logic door of vertical coupled micro-loop laser optical
Figure；
Fig. 2 is the schematic three dimensional views of vertical coupled micro-loop laser；
Fig. 3 is the logic timing figure based on the bistable all-optical XOR logic door of vertical coupled micro-loop laser optical.
In accompanying drawing, the list of parts representated by each label is as follows：
1：First Nanowire Waveguides； 2：Second Nanowire Waveguides；
3：3rd Nanowire Waveguides； 4：4th Nanowire Waveguides；
5：First micro-ring resonant cavity； 6：Second micro-ring resonant cavity；
7：First direction coupler； 8：Second direction coupler；
9：Third direction coupler； 10：Fourth direction coupler；
11：First Y-branch coupler； 12：Second Y-branch coupler；
13：3rd Y-branch coupler； 14：First attenuator；
15：Second attenuator； 16：3rd attenuator；
17：4th attenuator； 18：P-type electrode；
19：N-type electrode； 20：N-type InP substrate；
21：N-type InP under-clad layers； 22：AlGaInAs multiple quantum well active layers；
23：P-type InP top coverings； 24：InGaAs contact layers；
25：Planarizing polymer medium；
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, further is made to embodiment of the present invention below
It is described in detail on ground.
From unlike the micro-loop laser of side-coupled structure, the annular resonance of the micro-loop laser of perpendicular coupling structure
Chamber and input/output waveguide are in Different Plane, can be designed with independent optimization, thus can improve device performance, reduction technique
Difficulty.
The bistable all-optical XOR logic door of vertical coupled micro-loop laser optical is based on the invention provides one kind,
Referring to Fig. 1, the structure includes the first Nanowire Waveguides 1, the second Nanowire Waveguides 2, the 3rd Nanowire Waveguides 3, the 4th nano wire
Waveguide 4, the first micro-ring resonant cavity 5, the second micro-ring resonant cavity 6, first direction coupler 7, second direction coupler 8, third party
To coupler 9, fourth direction coupler 10, the first Y-branch coupler 11, the second Y-branch coupler 12, the coupling of the 3rd Y-branch
Device 13, the first attenuator 14, the second attenuator 15, the 3rd attenuator 16, the 4th attenuator 17.
Wherein, the first Nanowire Waveguides 1, the second Nanowire Waveguides 2, the 3rd Nanowire Waveguides 3, the 4th Nanowire Waveguides 4,
First Y-branch coupler 11, the second Y-branch coupler 12 and the 3rd Y-branch coupler 13 are in the same plane.
To make component compact, while avoiding occurring coupling between the second Nanowire Waveguides 2 and the 3rd Nanowire Waveguides 3
Close, distance therebetween is advisable with 5~10 μm.First micro-ring resonant cavity 5 is in the first Nanowire Waveguides 1 and the second nano wire ripple
Lead in the adjacent plane below 2, and positioned between the first Nanowire Waveguides 1 and the second Nanowire Waveguides 2.Second micro-ring resonant cavity
6 in the adjacent plane below the 3rd Nanowire Waveguides 3 and the 4th Nanowire Waveguides 4, and positioned at the 3rd Nanowire Waveguides 3 and the
Between four Nanowire Waveguides 4.
Conjunction beam termination input signal A, the Liang Ge branches of first Y-branch coupler 11 connect the first attenuator 14 and the 3rd respectively
Attenuator 16, conjunction beam termination input signal B, the Liang Ge branches of the second Y-branch coupler 12 the second attenuator of knot 15 and the respectively
Four attenuators 17.The input I1 of the first Nanowire Waveguides of another termination 1 of first attenuator 14, the second attenuator 15 it is another
Terminate the input I2 of the second Nanowire Waveguides 2, the input of the Nanowire Waveguides 3 of other end knot the 3rd of the 3rd attenuator 16
I3, the input I4 of the Nanowire Waveguides 4 of another termination the 4th of the 4th attenuator 17.First Nanowire Waveguides 1 and second nanometer
Input optical signal is coupled into the first micro-ring resonant by line waveguide 2 by first direction coupler 7 and second direction coupler 8 respectively
Chamber 5, and corresponding logical operation is carried out wherein, the first micro-ring resonant cavity 5 is by first direction coupler 7 by obtained by computing
Output optical signal is coupled into the first Nanowire Waveguides 1.3rd Nanowire Waveguides 3 and the 4th Nanowire Waveguides 4 pass through the 3rd respectively
Input optical signal is coupled into the second micro-ring resonant cavity 6 by directional coupler 9 and fourth direction coupler 10, and is patrolled accordingly
Computing is collected, and the output optical signal obtained by computing is coupled into the 4th by the second micro-ring resonant cavity 6 by fourth direction coupler 10
Nanowire Waveguides 4.The output optical signal of first Nanowire Waveguides 1 and the 4th Nanowire Waveguides 4 passes through the 3rd Y-branch coupler 13
Close after beam, operation result is exported at Output ends.
In such scheme, the first micro-ring resonant cavity 5, the second micro-ring resonant cavity 6 are included by ridge waveguide or slab waveguide structure
Into any closed circuit.Referring to Fig. 2, being made on each micro- ring resonator has corresponding P-type electrode 18 and N-type electrode
19.Micro- ring resonator, P-type electrode 18 and N-type electrode 19 are all the parts of micro-loop laser, and micro-loop laser is realized jointly
The lase of device.Wherein, the first micro-ring resonant cavity 5, corresponding P-type electrode 18 and N-type electrode 19 constitute the first micro-loop laser
SRL1, the second micro-ring resonant cavity 6, corresponding P-type electrode 18 and N-type electrode 19 constitute the second micro-loop laser SRL2.
In such scheme, the first micro-loop laser SRL1, the second micro-loop laser SRL2 N-type electrode ground connection, P-type electrode
Apply suitable bias current, to ensure that the first micro-loop laser SRL1, the second micro-loop laser SRL2 are operated in only up time
The unidirectional bistable state of pin or excitation mode counterclockwise.
Wherein, input signal A is after the beam splitting of the first Y-branch coupler 11, forms two paths of signals, and two paths of signals is respectively through the
After one attenuator 14 and the decay of the 3rd attenuator 16, the first Nanowire Waveguides 1 and the 3rd Nanowire Waveguides 3 are inputted respectively.Input
Signal B also forms two paths of signals after the beam splitting of the second Y-branch coupler 12, and this two paths of signals is through the second attenuator 15 and the 4th
After attenuator 17 is decayed, the second Nanowire Waveguides 2 and the 4th Nanowire Waveguides 4 are inputted respectively.
Adjust the attenuation of the first attenuator 14 and the second attenuator 15, make the first micro-loop laser SRL1 inputs I1 and
I2 luminous power meets condition：1B1>1A1>0B1>0A1(i.e. the luminous power of signal B logic " 1 " is more than the light work(of signal A logical ones
Rate, the luminous power of signal A logical ones is more than the luminous power of signal B logic " 0 ", and the luminous power of signal B logic " 0 " is more than signal A
The luminous power of logical zero).
(1) when signal B luminous power is logical one, no matter the logic level of signal A luminous powers is " 1 " or " 0 ", the
One micro-loop laser SRL1 excitation mode is controlled by signal B, i.e. the excitation mode of the first micro-loop laser SRL1 be it is counterclockwise,
Now the first Nanowire Waveguides 1 output low-power, i.e. logical value are " 0 ".
(2) when signal B luminous power is logical zero, when signal A luminous power is also logical zero, due to the low electricity of signal B
Flat luminous power is more than the low level luminous powers of signal A, so the first micro-loop laser SRL1 excitation mode remains unchanged, this
When the first Nanowire Waveguides 1 output be still that low-power, i.e. logical value are " 0 ".
(3) luminous power for only working as signal B is logical zero, when signal A luminous power is logical one, the first micro-loop laser
Device SRL1 excitation mode is just controlled by signal A, i.e. the excitation mode of the first micro-loop laser SRL1 is suitable from switching to counterclockwise
Hour hands, now the output high-power of the first Nanowire Waveguides 1, i.e. logical value are " 1 ".
Therefore, the corresponding relation between the luminous power of input signal and the output signal luminous power of the first Nanowire Waveguides 1
Constitute as followsLogic true value table.
The attenuation of the 3rd attenuator 16 and the 4th attenuator 17 is adjusted, makes the second micro-loop laser SRL2 input I3
Condition is met with I4 input optical power：1A2>1B2>0A2>0B2(i.e. " 1 " that " 1 " logic luminous power of signal A is more than signal B is patrolled
Collect luminous power, and signal B " 0 " the logic luminous power of " 1 " logic luminous power more than signal A, signal A " 0 " logic luminous power
" 0 " logic luminous power more than signal B).
(1) when signal A luminous power is logical one, no matter signal B luminous power logic is " 1 " or " 0 ", second is micro-
Cyclic laser SRL2 excitation mode is controlled by signal A, i.e. the excitation mode of the second micro-loop laser SRL2 be it is clockwise, now
4th Nanowire Waveguides 4 output low-power, i.e. logical value are " 0 ".
(2) when signal A luminous power is logical zero, when signal B luminous power logic is " 0 ", because signal A " 0 " is patrolled
" 0 " logic luminous power that luminous power is more than signal B is collected, so the second micro-loop laser SRL2 excitation mode remains unchanged, this
When the 4th Nanowire Waveguides 4 output be still that low-power, i.e. logical value are " 0 ".
(3) luminous power for only working as signal A is logical zero, when signal B luminous power logic is " 1 ", the second micro-loop laser
Device SRL2 excitation mode is just controlled by signal B, i.e. the excitation mode of the second micro-loop laser SRL2 is inverse from switching to clockwise
Hour hands, now the output high-power of the 4th Nanowire Waveguides 4, i.e. logical value are " 1 ".Therefore, the second micro-loop laser SRL2's is defeated
The corresponding relation composition entered between the output signal luminous power of signal light power and the 4th Nanowire Waveguides 4 is as follows
Logic true value table.
The output signal O1 of first Nanowire Waveguides 1 and the output signal O2 of the 4th Nanowire Waveguides 4 input the 3rd Y respectively
The Liang Ge branches of type coupler 13, after the 3rd Y types coupler 13 closes beam, complete "AND" logical operation.
Wherein, the XOR that input signal light power and the corresponding relation of output signal luminous power are constituted shown in following table is true
It is worth table.
Corresponding relation between input signal light power and output signal luminous power may make up corresponding XOR relation,
Its XOR timing diagram is as shown in Figure 3.
In such scheme, the first micro-ring resonant cavity 5 and the second micro-ring resonator 6 are by group Ⅲ-Ⅴ compound semiconductor material
It is made, the first nano wire straight wave guide 1, the second Nanowire Waveguides 2, the 3rd Nanowire Waveguides 3, the 4th Nanowire Waveguides 4,
One Y-branch coupler 11, the second Y-branch coupler 12 and the 3rd Y-branch coupler 13 are adjustable using low-loss, refractive index
Polymeric material；First direction coupler 7, second direction coupler 8, third direction coupler 9 and fourth direction coupler 10
It is made by polymer/group Ⅲ-Ⅴ compound semiconductor composite.
In such scheme, the first Nanowire Waveguides 1, the second Nanowire Waveguides 2, the 3rd Nanowire Waveguides 3, the 4th nano wire
Waveguide 4, the first micro-ring resonant cavity 5, the second micro-ring resonant cavity 6, the first Y-branch coupler 11, the second Y-branch coupler 12 and
Three Y-branch couplers 13 use bar shaped or ridge waveguide structure, and above-mentioned bar shaped or ridge waveguide structure are satisfied by single mode transport
Condition.
The vertical coupled micro-loop laser knot based on polymer/InP composite systems provided referring to Fig. 2, the present embodiment
The full light XOR gate of structure is produced on InP/AlGaInAs MQW epitaxial wafers.Epitaxial wafer includes N-type InP substrate 20, N
Type InP under-clad layers 21, AlGaInAs multiple quantum well active layers 22, p-type InP top coverings 23 and InGaAs contact layers 24.First,
Ridge or the first micro-ring resonant cavity 5 and second of slab waveguide structure are prepared on epitaxial wafer using semiconductor etching techniques
Micro-ring resonant cavity 6.Then, the planarization of spin on polymers medium 25 wafer surface.Then make the first micro-loop laser SRL1 by lithography
With the second micro-loop laser SRL2 P-type electrode graphical window, and each independent P-type electrode 18 is prepared.Afterwards, spin coating is low
(such as fluorinated polyimide (PI), modified poly- methyl esters methyl acrylate (PMMA), benzocyclobutane are dilute for the waveguide polymer of loss
(BCB) etc.), and prepare the waveguide of polymer nano rice noodles and the directional coupler of single mode transport.Finally, InP substrate 20 is thinned
N-type electrode 19 is prepared to 150 μm, and in chip back surface.
To approach the first micro-loop laser SRL1 and the second micro-loop laser SRL2 performance, chip area is minimized,
First micro-loop laser SRL1 and the second micro-loop laser SRL2 should as far as possible close to.It should be noted that to prevent second to receive
The Nanowire Waveguides 3 of rice noodles waveguide 2 and the 3rd are intercoupled, and two waveguide spacing should be controlled between 5~10 μm.
Suitable electric current is passed to respectively between the first micro-loop laser SRL1 and the second micro-loop laser SRL2 two electrodes
(usual bias current takes 2 times of threshold current), makes it be biased in the only unidirectional bistable of excitation mode clockwise or counterclockwise
State.During work, adjustment input signal A and B optical wavelength make it consistent with the excitation wavelength of micro-loop laser.
The embodiment of the present invention is to the model of each device in addition to specified otherwise is done, and the model of other devices is not limited,
As long as the device of above-mentioned functions can be completed.
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, the embodiments of the present invention
Sequence number is for illustration only, and the quality of embodiment is not represented.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (4)
1. one kind is based on the bistable all-optical XOR logic door of vertical coupled micro-loop laser optical, it is characterised in that including：The
One Y-branch coupler and the second Y-branch coupler,
Conjunction beam termination input signal A, the Liang Ge branches of the first Y-branch coupler connect the first attenuator and the 3rd decay respectively
Device, conjunction beam termination input signal B, the Liang Ge branches of the second Y-branch coupler connect the second attenuator and the 4th decay respectively
Device；
The input of the Nanowire Waveguides of another termination first of first attenuator, another termination of second attenuator
The input of two Nanowire Waveguides, the input of the Nanowire Waveguides of another termination the 3rd of the 3rd attenuator, the described 4th
The input of the Nanowire Waveguides of another termination the 4th of attenuator；
First Nanowire Waveguides and second Nanowire Waveguides pass through first direction coupler and second direction coupling respectively
Input optical signal is coupled into the first micro-ring resonant cavity by clutch, and carries out corresponding logical operation, first micro-loop wherein
Output optical signal obtained by computing is coupled into first Nanowire Waveguides by resonator by the first direction coupler；
3rd Nanowire Waveguides and the 4th Nanowire Waveguides pass through third direction coupler and fourth direction coupling respectively
Input optical signal is coupled into the second micro-ring resonant cavity by clutch, and carries out corresponding logical operation, second micro-ring resonant cavity
The output optical signal obtained by computing is coupled into the 4th Nanowire Waveguides by the fourth direction coupler；
The output optical signal of first Nanowire Waveguides and the 4th Nanowire Waveguides closes beam by the 3rd Y-branch coupler
Afterwards, operation result is exported；
Adjacent plane of first micro-ring resonant cavity below first Nanowire Waveguides and second Nanowire Waveguides
It is interior, and positioned between first Nanowire Waveguides and second Nanowire Waveguides；Second micro-ring resonant cavity is described
In adjacent plane below 3rd Nanowire Waveguides and the 4th Nanowire Waveguides, and positioned at the 3rd Nanowire Waveguides and
Between 4th Nanowire Waveguides.
2. it is according to claim 1 a kind of based on the vertical coupled bistable all-optical XOR logic of micro-loop laser optical
Door, it is characterised in that
First Nanowire Waveguides, second Nanowire Waveguides, the 3rd Nanowire Waveguides, the 4th nano wire ripple
Lead, the first Y-branch coupler, the second Y-branch coupler and the 3rd Y-branch coupler in the same plane.
3. it is according to claim 1 a kind of based on the vertical coupled bistable all-optical XOR logic of micro-loop laser optical
Door, it is characterised in that
First Nanowire Waveguides, second Nanowire Waveguides, the 3rd Nanowire Waveguides, the 4th nano wire ripple
Lead, first micro-ring resonant cavity, second micro-ring resonant cavity, the first Y-branch coupler, the second Y-branch coupling
Clutch and the 3rd Y-branch coupler use bar shaped or ridge waveguide structure, and above-mentioned bar shaped or ridge waveguide structure are full
Sufficient single mode transport condition.
4. it is according to claim 1 a kind of based on the vertical coupled bistable all-optical XOR logic of micro-loop laser optical
Door, it is characterised in that
Being made on each micro- ring resonator has corresponding P-type electrode and N-type electrode, the first micro-ring resonant cavity, corresponding p-type
Electrode and N-type electrode constitute the first micro-loop laser, and the second micro-ring resonant cavity, corresponding P-type electrode and N-type electrode constitute second
Micro-loop laser.
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| CN105629625A (en) * | 2016-03-02 | 2016-06-01 | 北方工业大学 | Dual microring resonant cavity differential delay based all-optical logic exclusive OR gate |
| CN107153312B (en) * | 2017-04-07 | 2020-04-14 | 深圳大学 | Passive all-optical logic gate and polarization converter |
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| NL1027194C2 (en) * | 2004-10-07 | 2006-04-10 | Univ Eindhoven Tech | Bistable optical component incorporates at least two vibratory cavities, one or more of which is coupled (3,5,6) to an optical input and also one or more of which is connected to an optical outlet |
| WO2009001102A1 (en) * | 2007-06-28 | 2008-12-31 | University Of Bristol | All-optical data signal processing device |
| CN101794053A (en) * | 2010-03-01 | 2010-08-04 | 中国科学院半导体研究所 | Full-gloss logic XNOR gate structure based on micro-ring resonator structure |
| CN102629067A (en) * | 2012-03-22 | 2012-08-08 | 中国科学院半导体研究所 | Single-bit binary system optical numeric comparison device based on micro-ring resonator |
| CN204129403U (en) * | 2014-11-10 | 2015-01-28 | 天津大学 | Based on the all-optical XOR logic door of vertical coupled micro-cyclic laser optical bistability |
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| NL1027194C2 (en) * | 2004-10-07 | 2006-04-10 | Univ Eindhoven Tech | Bistable optical component incorporates at least two vibratory cavities, one or more of which is coupled (3,5,6) to an optical input and also one or more of which is connected to an optical outlet |
| WO2009001102A1 (en) * | 2007-06-28 | 2008-12-31 | University Of Bristol | All-optical data signal processing device |
| CN101794053A (en) * | 2010-03-01 | 2010-08-04 | 中国科学院半导体研究所 | Full-gloss logic XNOR gate structure based on micro-ring resonator structure |
| CN102629067A (en) * | 2012-03-22 | 2012-08-08 | 中国科学院半导体研究所 | Single-bit binary system optical numeric comparison device based on micro-ring resonator |
| CN204129403U (en) * | 2014-11-10 | 2015-01-28 | 天津大学 | Based on the all-optical XOR logic door of vertical coupled micro-cyclic laser optical bistability |
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