CN104007568B - 2*2 full-optical router and N*N full-optical router composed of 2*2 full-optical routers - Google Patents
2*2 full-optical router and N*N full-optical router composed of 2*2 full-optical routers Download PDFInfo
- Publication number
- CN104007568B CN104007568B CN201410271240.5A CN201410271240A CN104007568B CN 104007568 B CN104007568 B CN 104007568B CN 201410271240 A CN201410271240 A CN 201410271240A CN 104007568 B CN104007568 B CN 104007568B
- Authority
- CN
- China
- Prior art keywords
- optical
- beam splitter
- polarization beam
- splitter prism
- optical port
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000010287 polarization Effects 0.000 claims abstract description 278
- 230000003287 optical effect Effects 0.000 claims abstract description 239
- 239000013078 crystal Substances 0.000 claims abstract description 165
- 230000005540 biological transmission Effects 0.000 claims description 85
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 16
- 229910052744 lithium Inorganic materials 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 7
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 6
- 229910052700 potassium Inorganic materials 0.000 claims description 6
- 239000011591 potassium Substances 0.000 claims description 6
- 229910000402 monopotassium phosphate Inorganic materials 0.000 claims description 3
- 235000019796 monopotassium phosphate Nutrition 0.000 claims description 3
- PJNZPQUBCPKICU-UHFFFAOYSA-N phosphoric acid;potassium Chemical compound [K].OP(O)(O)=O PJNZPQUBCPKICU-UHFFFAOYSA-N 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims 1
- 238000004891 communication Methods 0.000 abstract description 6
- 230000004044 response Effects 0.000 abstract description 4
- 230000000903 blocking effect Effects 0.000 abstract 1
- 230000002441 reversible effect Effects 0.000 description 14
- 239000000463 material Substances 0.000 description 7
- 230000008859 change Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000005611 electricity Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 229910003327 LiNbO3 Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005286 illumination Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 230000001678 irradiating effect Effects 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- WSMQKESQZFQMFW-UHFFFAOYSA-N 5-methyl-pyrazole-3-carboxylic acid Chemical compound CC1=CC(C(O)=O)=NN1 WSMQKESQZFQMFW-UHFFFAOYSA-N 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 2
- 210000004899 c-terminal region Anatomy 0.000 description 2
- 210000004027 cell Anatomy 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000005304 optical glass Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- GQYHUHYESMUTHG-UHFFFAOYSA-N lithium niobate Chemical compound [Li+].[O-][Nb](=O)=O GQYHUHYESMUTHG-UHFFFAOYSA-N 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 239000010955 niobium Substances 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
Abstract
A 2*2 full-optical router comprises a plurality of polarization beam splitters and a plurality of electro-optical crystal switches. Each polarization beam splitter is provided with an incident light opening. The 2*2 full-optical router is characterized in that each electro-optical crystal switch is arranged on the corresponding polarization beam splitter, and the electro-optical crystal switches are used for controlling the polarization direction of incident beams entering the incident light openings of the polarization beam splitters so as to control the exit direction of the beams through the polarization beam splitters. The 2*2 full-optical router is mainly used for optical switching devices and optical router devices in photo-communication networks, so that generalized non-blocking connection of any N*N port can be rapidly and effectively achieved, and the message capacity and the response speed of optical routers in photo-communication networks are greatly increased. Optical path selection is achieved through the electro-optical crystal switches at a quite high speed, and the 2*2 full-optical router has extremely high reliability and stability.
Description
Technical field
The invention belongs to technical field of photo communication, more particularly to the full light of N × N of a kind of 2 × 2 All-optical routing devices and its composition
Router.
Background technology
With the development of high speed full optical network, gradually manifested based on the network plan shortcoming of electronic technology, due to being limited to
Electronic device work upper rate limit is 40G to the maximum, and general electronic technology network plan is difficult to complete high-speed wideband integrated service
Transmission and exchange are processed, and bandwidth " bottleneck " is there is also in network.Only all-optical network scheme can provide high speed, jumbo biography
Defeated and disposal ability, breaks " bottleneck " of information transfer, can need in the bandwidth of long time endoadaptation high speed broadband service
Ask.All-optical network (all-optical communication network) refers to the transmission in a network of optical information stream and deposits in the form of light all the time when exchanging
Without converting through optical electrical, electrical/optical.That is, beginning in transmitting procedure of the information from source node to destination node
Eventually in area of light, therefore, all-optical network becomes (superelevation at a high speed of future generation with its good transparent, compatible and autgmentability
Speed) broadband network first-selection.
At present mechanical optical switch is mainly micro electronmechanical type photoswitch, and advantage is that insertion loss is low, is not polarized and wavelength
Impact, have the disadvantage that response time is long, typically in millisecond magnitude, have also there are problems that rebound shake and it is repeated,
The photoswitch for being particularly difficult to realize very big figure is integrated；Non-mechanical optical switch mainly have waveguide coupled mode, acousto-optic modulation type,
Liquid crystal type, holographic, Electro-optical Modulation type etc..Waveguide coupled mode response speed is slower wherein in non-mechanical optical switch, is difficult reality
Existing three-dimensional interconnection；Acousto-optic modulation speed can reach musec order, but be not suitable for forming large-scale optical switching matrix, and be lost and ripple
Length is relevant；Holographic photoswitch speed is up to nanosecond order, but manufacturing process is complicated.
Prior art [1] (Li Zhiyang. suitable for the M × N × K array of photoswitch and its method of all-optical network, invention is special
Profit, application number:CN03127962.7. the method that the optical switching network described by) is interfered using Waveguide array.It can be in not shadow
Ring individually the light wave of a certain wavelength is separated from input waveguide under conditions of other wavelength, and there is Optical buffer and light
Gain function, but the crosstalk that Waveguide array is interfered is larger, and speed is slower, is not suitable in high speed, jumbo all-optical network
Lower application.
Prior art [2] (Hou Peipei, Song Zhe, Li Xudong, Zhang Juan and Liu Liren. the integrated N × N of monolithic crystal is opened in length and breadth
Close network and its control algolithm [J], ACTAOPTICASINICA, 2008,28 (2) .) in devise a kind of monolithic crystal integrated
N × N crossbar switches (Crossbar) network, it is possible to achieve the clog-free connection arbitrarily between I/O channel.But can only
Realize the connection of fixed input and outfan, it is impossible to realize the clog-free connection of arbitrary port wanted needed for All-optical routing.
Electrooptical switching switch speed is very fast, up to nanosecond order；Due to pure solid-state structure, no-movable part, it has
High reliability and stability, it is convenient expand with it is integrated, it is easy to constitute the optical switching system of multiport；Also have in addition and insert
Enter and the features such as low, crosstalk is little, modulation contrast is high is lost, therefore the present invention utilizes LiNbO3The electrooptic effect of crystal and improvement
Crossbar network structures constitute N × N All-optical routing devices, can be effectively matched all-optical network, realize high speed, jumbo information
Transmission and process.
The content of the invention
Goal of the invention：The present invention is intended to provide a kind of All-optical routing device that can match high-speed high capacity all-optical network,
The network interconnection of the same polarization light output of any N × N-port can be realized, optic path has reversibility.System has high
Reliability and stability, it is convenient expand with it is integrated, it is easy to constitute the optical switching system of multiport, also there is in addition insertion loss
The features such as low, crosstalk is little, modulation contrast is high.
Technical scheme：2 × 2 All-optical routing devices in the present invention include that some polarization beam splitter prisms and some electro-optic crystals are opened
Close, each polarization beam splitter prism is provided with incident optical port, at each polarization beam splitter prism incidence optical port electro-optic crystal is respectively provided with
Switch, the electro-optical crystal switch is used for the polarization direction that control enters the incident beam of polarization beam splitter prism incidence optical port, so as to
The exit direction of the light beam is controlled by polarization beam splitter prism.
Further, some polarization beam splitter prisms include the first polarization beam splitter prism (aI), the second polarization beam splitting rib
Mirror (aII), the 3rd polarization beam splitter prism (bI), the 4th polarization beam splitter prism (bII), the 5th polarization beam splitter prism (cI), the 6th
Polarization beam splitter prism (cII), the 7th polarization beam splitter prism (dI), the 8th polarization beam splitter prism (dII)；Each polarization beam splitter prism
It is provided with incident optical port, reflection of polarization optical port and transmission optical port；Wherein, the polarized reflection light of the first polarization beam splitter prism (aI)
Mouth is connected with the reflection of polarization optical port of the second polarization beam splitter prism (aII), the reflection of polarization of the 3rd polarization beam splitter prism (bI)
Optical port is connected with the reflection of polarization optical port of the 5th polarization beam splitter prism (cI), the reflection of polarization of the 5th polarization beam splitter prism (cI)
Optical port is connected with the reflection of polarization optical port of the 6th polarization beam splitter prism (cII), and the polarization of the 7th polarization beam splitter prism (dI) is anti-
Penetrate optical port to be connected with the reflection of polarization optical port of the 8th polarization beam splitter prism (dII)；2 × 2 described All-optical routing devices also set up
Have the first light path input/output terminal, the second light path input/output terminal, the 3rd light path input/output terminal and the 4th light path input/
Outfan；The incident optical port of the first polarization beam splitter prism (aI) and transmission optical port, the incident illumination of the 3rd polarization beam splitter prism (bI)
Mouthful with transmission optical port, the transmission optical port of the 5th polarization beam splitter prism (cI) and incidence optical port and the 7th polarization beam splitter prism (dI)
Transmission optical port and incident optical port series connection, the optical port at the series connection light path two ends is respectively the first light path input/output terminal and the second light
Road input/output terminal；The incident optical port of the second polarization beam splitter prism (aII) and transmission optical port, the 4th polarization beam splitter prism (bII)
Incident optical port and transmission optical port, the transmission optical port of the 6th polarization beam splitter prism (cII) and incidence optical port and the 8th polarization beam splitting
The transmission optical port of prism (dII) and incident optical port series connection, the optical port at the series connection light path two ends is respectively the 3rd light path input/output
End and the 4th light path input/output terminal.
Electro-optical crystal switch in the present invention can be opened for lithium columbate crystal electrooptical switching, potassium dihydrogen phosphate crystal electric light
Pass, potassium dideuterium-hydrogen phosphate crystal electrooptical switching or lithium tantalate electrooptical switching.
In the present invention, the incident optical port of the first polarization beam splitter prism enters with transmission optical port, the 3rd polarization beam splitter prism
Penetrate the transmission of optical port and transmission optical port, the transmission optical port of the 5th polarization beam splitter prism and incident optical port and the 7th polarization beam splitter prism
Optical port and incident optical port series connection refer to the first polarization beam splitter prism by incident optical port and transmission optical port, the 3rd polarization beam splitting
Prism is by incident optical port with transmission optical port, the 5th polarization beam splitter prism by transmission optical port and incident optical port and the 7th polarization point
Beam prism enters a series connection light path by transmiting optical port and incident optical port series connection.This series connection only describes each polarization point
The closure relation of beam prism, the annexation that each polarization beam splitter prism is not necessarily sequentially connected in series.But each polarization point
The polar orientation that beam prism is connected serially in light path must be strictly observed, that is, have one from one pros to other end of light path
To when by the first polarization beam splitter prism, it is necessary to be to first pass through incident optical port to arrive transmission optical port again；When by the 3rd polarization point
During beam prism, it is necessary to be to first pass through incident optical port to arrive transmission optical port again；When by five polarization beam splitter prisms, it is necessary to be first Jing
Cross transmission optical port and arrive incident optical port again；When by seven polarization beam splitter prisms, it is necessary to be to first pass through transmission optical port to arrive incidence again
Optical port.
For the second polarization beam splitter prism incident optical port with transmission optical port, the incident optical port of the 4th polarization beam splitter prism with
Transmit the transmission optical port of optical port, the transmission optical port of the 6th polarization beam splitter prism and incident optical port and the 8th polarization beam splitter prism and enter
Penetrate optical port series connection and be connected in series relation and polarity annexation also in compliance with similar with epimere.That is, exist along one from light path
One positive direction to other end, when by the second polarization beam splitter prism, it is necessary to be to first pass through incident optical port to arrive transmitted light again
Mouthful；When by four polarization beam splitter prisms, it is necessary to be to first pass through incident optical port to arrive transmission optical port again；When by the 6th polarization point
During beam prism, it is necessary to be to first pass through transmission optical port to arrive incident optical port again；When by eight polarization beam splitter prisms, it is necessary to be first Jing
Cross transmission optical port and arrive incident optical port again.
Connection between each interface of concrete each polarization beam splitter prism can pass through to arrange the angle of each polarization beam splitter prism and
Position relationship is directly connected to them, it is also possible to be connected with each other using light-guide materials such as optical fiber.
As mentioned previously, because the connection order between each polarization fraction prism is unimportant, therefore specifically, have with
Lower the first embodiment.
It is additionally provided with the incident optical port of 2 × 2 All-optical routing device each polarization beam splitter prism for adapting to this kind of embodiment
A kind of concrete set-up mode of electro-optical crystal switch is：Including the first electric light being arranged on before the first polarization beam splitter prism entrance port
Crystal switch, the second electro-optical crystal switch being arranged on before the second polarization beam splitter prism entrance port, is arranged on the 3rd polarization beam splitting
The 3rd electro-optical crystal switch between prism incidence optical port and the first polarization beam splitter prism transmission optical port, is arranged on the 4th polarization point
The 5th electro-optical crystal switch between beam prism incidence optical port and the incident optical port of the 6th polarization beam splitter prism, is arranged on the 5th inclined
The 5th electro-optical crystal switch shaken between incident optical port and the 7th polarization beam splitter prism transmission optical port of beam splitter prism, is arranged on the
The 7th electro-optical crystal switch before seven polarization beam splitter prism entrance ports, the 6th be arranged on before the 8th polarization beam splitter prism entrance port
Electro-optical crystal switch.
As mentioned previously, because the connection between each polarization fraction prism continue it is unimportant, therefore specifically, have with
Lower second embodiment.The incident optical port of the first polarization beam splitter prism and transmission optical port, the incidence of the 3rd polarization beam splitter prism
Optical port and the transmitted light for transmiting optical port, the transmission optical port of the 5th polarization beam splitter prism and incident optical port and the 7th polarization beam splitter prism
The mode of series connection is between mouth and incident optical port：The incident optical port of the 7th polarization beam splitter prism is connected to the first polarization beam splitter prism
Incident optical port, the transmission optical port of the first polarization beam splitter prism is connected to the incident optical port of the 3rd polarization beam splitter prism, and the 3rd is inclined
The transmission optical port of beam splitter prism of shaking is connected to the transmission optical port of the 5th polarization beam splitter prism；The incident illumination of the second polarization beam splitter prism
Mouth and transmission optical port, the incident optical port of the 4th polarization beam splitter prism and transmission optical port, the transmission optical port of the 6th polarization beam splitter prism
It is with the series system of the transmission optical port of incident optical port and the 8th polarization beam splitter prism and incident optical port：8th polarization beam splitter prism
Incident optical port be connected to the incident optical port of the second polarization beam splitter prism, the transmission optical port of the second polarization beam splitter prism is connected to
The transmission optical port of four polarization beam splitter prisms, the incident optical port of the 4th polarization beam splitter prism is connected to entering for the 6th polarization beam splitter prism
Penetrate optical port.
Also set at the incident optical port of 2 × 2 All-optical routing device each polarization beam splitter prism for adapting to second embodiment
The concrete set-up mode of another kind for being equipped with electro-optical crystal switch is：Including being arranged on the 7th polarization beam splitter prism entrance port and first
The first electro-optical crystal switch divided between polarisation beam prism incidence mouth, is arranged on the 8th polarization beam splitter prism entrance port inclined with second
The second electro-optical crystal switch shaken between beam splitter prism entrance port, is arranged on the 3rd polarization beam splitter prism incidence optical port inclined with first
The 3rd electro-optical crystal switch between the beam splitter prism that shakes transmission optical port, is arranged on the 4th polarization beam splitter prism incidence optical port and the 6th
The 5th electro-optical crystal switch between the incident optical port of polarization beam splitter prism, is arranged on the incident optical port of the 5th polarization beam splitter prism
The 5th electro-optical crystal switch between optical port is transmitted with the 7th polarization beam splitter prism.
It is arranged such, can relatively goes up an embodiment and use two electro-optical crystal switchs less.
Further, when described electro-optical crystal switch applied voltage is zero, through the outgoing of the electro-optical crystal switch
Light beam is identical with the polarization direction of incident beam.
Further, when described electro-optical crystal switch applied voltage is zero, through the outgoing of the electro-optical crystal switch
There are 90 ° of changes with the polarization direction of incident beam in light beam.
Present invention additionally comprises N × N All-optical routing the devices being made up of 2 × 2 above-mentioned All-optical routing devices, as shown in figure 5, described
N is even number, including N22 × 2/2-N+1 described All-optical routing devices, number consecutively is i-th, No. j 2 × 2 All-optical routing device i according to
The secondary all positive integers taken all over 1 to N-1, when i is taken as odd number, j takes successively all positive integers all over 1 to N/2, when i is taken as idol
During number, j takes successively all positive integers all over 1 to N/2-1, and its annexation is：
1) when the positive integer that j values are arbitrary 1 to N/2, the 1st, No. j 2 × 2 All-optical routing device is connected to the 1st, j+1
Number 2 × 2 All-optical routing devices, N-1, No. j 2 × 2 All-optical routing devices are connected to N-1, No. j+1 2 × 2 All-optical routing devices；
2) when the even number that i values are arbitrary 1 to N-1, when j values are the positive integer of arbitrary 1 to N/2-1, i-th, No. j
Four ports of 2 × 2 All-optical routing devices are respectively connecting to the i-th -1, No. j 2 × 2 All-optical routing device, i-1, No. j+1 2 × 2 full light paths
By device, i+1, No. j 2 × 2 All-optical routing device, i+1, No. j+1 2 × 2 All-optical routing devices.
Further, N × N All-optical routings device also includes 2N N × N All-optical routing device light path input/output terminal, point
It is not N/2 i-th when i values odd number any for 1 to N-1, the first light path input/output of No. 12 × 2 All-optical routing devices
End, N/2 individual i-th, the 3rd light path input/output terminal of No. 12 × 2 All-optical routing devices, N/2 individual i-th, No. N/2 2 × 2 All-optical routings
Second light path input/output terminal of device and N/2 individual i-th, the 4th light path input/output terminal of No. N/2 2 × 2 All-optical routing devices.
Present invention additionally comprises N × N All-optical routing the devices being made up of 2 × 2 above-mentioned All-optical routing devices, as shown in fig. 6, described
N is odd number, including (N2- N)/2 described in 2 × 2 All-optical routing devices, number consecutively is i-th, No. j 2 × 2 All-optical routing device i according to
The secondary all positive integers taken all over 1 to N-1, when i is taken as odd number, j takes successively all positive integers all over 1 to (N+1)/2, when i takes
For even number when, j takes successively all positive integers all over 1 to (N-1)/2, and its annexation is：
1) when positive integer of the j values for arbitrary 1 to (N+1)/2, the 1st, No. j 2 × 2 All-optical routing device is connected to the 1st,
No. j+1 2 × 2 All-optical routing devices, (N-1)/2, No. j 2 × 2 All-optical routing devices are connected to (N-1)/2, No. j+1 2 × 2 full light
Router, (N-1)/2, two ports of No. j 2 × 2 All-optical routing devices are respectively connecting to (N-3)/2, No. j 2 × 2 All-optical routings
Device and (N-3)/2, No. j+1 2 × 2 All-optical routing devices；
2) when the even number that i values are arbitrary 1 to N-3, when j values are arbitrary 1 to (N-1)/2 positive integer, i-th, j
Four ports of number 2 × 2 All-optical routing devices are respectively connecting to the i-th -1, No. j 2 × 2 All-optical routing device, i-1, No. j+1 2 × 2 full light
Router, i+1, No. j 2 × 2 All-optical routing device, i+1, No. j+1 2 × 2 All-optical routing devices.
Further, N × N All-optical routings device also includes 2N N × N All-optical routing device light path input/output terminal, point
It is not when i values are any odd numbers of 1 to N-1 (N-1)/2 i-th, the first light path input of No. 12 × 2 All-optical routing devices/defeated
Go out end, (N-1)/2 i-th, the 3rd light path input/output terminal, (N-1)/2 i-th of No. 12 × 2 All-optical routing devices, (N+1)/2
Second light path input/output terminal, (N-1)/2 i-th of number 2 × 2 All-optical routing devices, the 4th of No. N/2 2 × 2 All-optical routing devices the
Light path input/output terminal, a N, the 3rd light path input/output terminal and a N of No. 1 All-optical routing device, (N+1)/No. 2
4th light path input/output terminal of All-optical routing device.
Electro-optical crystal switch controls the polarization direction of outgoing beam.The optical axis of such as typical lithium columbate crystal electrooptical switching
Parallel to incident beam direction, metal electrode is symmetrically added on two opposite flanks of lithium columbate crystal, along lithium niobate crystal c
Body vertical direction applies horizontal half-wave voltage Uπ.When lithium columbate crystal electrooptical switching is without applied voltage, outgoing beam with it is incident
The polarization direction of light beam is identical；When lithium columbate crystal electrooptical switching applies half-wave voltage, outgoing beam is inclined with incident beam
Shake direction occur π phase bit flipping (s light is changed into from p light or s light is changed into p light).For the incident beam of different wave length, half
Wave voltage can change therewith, half-wave voltage UπRelation is met between incident wavelength λ：
Wherein d is vertical crystal thickness, and l is the crystal length that incident beam is passed through, γ22For the electric light of lithium columbate crystal
Coefficient, noFor the refractive index of lithium columbate crystal.
Polarization beam splitter prism controls the exit direction of light beam：When incident beam is the p light time, go out after polarization beam splitter prism
The direction of irradiating light beam does not change；When incident beam is the s light time, the direction of outgoing beam occurs after polarization beam splitter prism
90 ° of change.
Polarization splitting prism is that multilayer dielectric film is coated with the body diagonal plane of optical glass prism, then by two pieces of prisms
Light splitting surface gluing is got up, and anti-reflection film is coated with light pass surface, to reduce light by reflection loss during prism.For refractive index
The interface of different bi-materials, can find an angle of incidence, be allowed to meet Brewster corner condition, at such a
It is that p-component light (makes to divide without s in projection light after plated film in the light of right side transmission after laser is by incidence on the left of prism under part
Amount), it is s light components in the light of offside reflection.The Film Design of polarization beam splitter prism is required, it is necessary to which selective refraction rate meets certain
Relation coating materials and base material, make p light full impregnated mistakes, and s light all reflects.First, the of wherein 2 × 2 All-optical routing devices
3rd, the four, the 8th polarization beam splitter prisms and horizontal direction z-axis positive direction are in 135 ° of angle, and second, the five, the six, the 7th is inclined
Beam splitter prism and the horizontal direction positive direction of shaking is in 45 ° of angle.
Beneficial effect：Present invention is mainly used for light exchange, the optical routing device in optical communication network, can be fast and effectively
The clog-free connection of broad sense of any N × N-port is realized, the message capacity of optical routing and response speed in optical communication network is greatly improved
Degree.Realize that light path is selected using electro-optical crystal switch in the present invention, speed is very fast, and with high reliability with it is stable
Property.The present invention adopts free-space structure, it is convenient expand with it is integrated, it is easy to constitute the optical switching system of multiport.The present invention
The electro-optical crystal switch number of middle employing is few, and insertion loss is low, crosstalk is little.Traditional optical switching network can only be realized fixing input
To the arbitrary port connection of fixed output, compared with traditional optical switching network, the present invention can realize that any N × N-port is same
The connection of polarization light output, optic path has reversibility, and application is more free, extensive.
Description of the drawings
Fig. 1 is a kind of schematic diagram of 2 × 2 All-optical routing device embodiments in the present invention；
Fig. 2 is a kind of schematic diagram of 2 × 2 All-optical routing device embodiments in the present invention；
Fig. 3 is electro-optical deflection beam splitting schematic diagram in the present invention；
Fig. 4 is 3 × 3 All-optical routing device schematic diagrams being made up of a kind of 2 × 2 All-optical routing devices in the present invention；
Fig. 5 is a kind of structured flowchart of 2N ports N × N All-optical routing devices of the invention；
Fig. 6 is a kind of structured flowchart of 2N ports N × N All-optical routing devices of the invention.
Specific embodiment
Embodiment 1
Electro-optical crystal switch used in the present embodiment is lithium columbate crystal electrooptical switching.Or it is brilliant using potassium dihydrogen phosphate
Body electrooptical switching, potassium dideuterium-hydrogen phosphate crystal electrooptical switching or lithium tantalate electrooptical switching do not affect the realization of the present invention.
Fig. 1 is referred to, Fig. 1 is the All-optical routing device of minor structure 2 × 2 in a kind of 2N ports All-optical routing device of the present invention
Structural representation.As seen from the figure, its composition of 2 × 2 All-optical routing devices includes：
Each 2 × 2 All-optical routing device is made up of 8 polarization beam splitter prisms and 7 LiNbO3 crystal electrooptical switchs, and 2 × 2 is complete
Light path I in optical router is followed successively by from left to right the first electro-optical crystal switch 1, the first polarization beam splitter prism aI, the 3rd electric light
Crystal switch 3, the 3rd polarization beam splitter prism bI, the 5th polarization beam splitter prism cI, the polarization point of the 5th electro-optical crystal switch the 5, the 7th
Beam prism dI, the 7th electro-optical crystal switch 7；Light path II is followed successively by from left to right the second electro-optical crystal switch 2, the second polarization beam splitting
Prism aII, the 4th polarization beam splitter prism bII, the 4th electro-optical crystal switch 4, the 6th polarization beam splitter prism cII, the 8th polarization point
Beam prism dII, the 6th electro-optical crystal switch 6.
Fig. 3 is electro-optical deflection beam splitting schematic diagram in the present invention.Electro-optical crystal switch controls the polarization direction of outgoing beam.Niobium
The optical axis c of sour crystalline lithium is parallel to z directions.Metal electrode is symmetrically added in two phases of the lithium columbate crystal parallel to coordinate surface yz
To on side, along lithium columbate crystal x directions horizontal half-wave voltage U being appliedπ.When electro-optical crystal switch is without applied voltage, go out
Irradiating light beam is identical with the polarization direction of incident beam；When electro-optical crystal switch applies half-wave voltage, outgoing beam and incident illumination
There is the phase bit flipping (s light is changed into from p light or s light is changed into p light) of π in the polarization direction of beam.For the incidence of different wave length
Light beam, half-wave voltage can change therewith, half-wave voltage UπRelation is met between incident wavelength λ：
Wherein d be x to crystal thickness, l be z to crystal length, γ22For the electro-optic coefficient of lithium columbate crystal, noFor
The refractive index of lithium columbate crystal.
Polarization beam splitter prism controls the exit direction of light beam：When incident beam is the p light time, go out after polarization beam splitter prism
The direction of irradiating light beam does not change；When incident beam is the s light time, the direction of outgoing beam occurs after polarization beam splitter prism
90 ° of change, as shown in Figure 3.
Polarization splitting prism is that multilayer dielectric film is coated with the body diagonal plane of optical glass prism, then by two pieces of prisms
Light splitting surface gluing is got up, and anti-reflection film is coated with light pass surface, to reduce light by reflection loss during prism.For refractive index
The interface of different bi-materials, can find an angle of incidence, be allowed to meet Brewster corner condition, at such a
It is that p-component light (makes to divide without s in projection light after plated film in the light of right side transmission after laser is by incidence on the left of prism under part
Amount), it is s light components in the light of offside reflection.The Film Design of polarization beam splitter prism is required, it is necessary to which selective refraction rate meets certain
Relation coating materials and base material, make p light full impregnated mistakes, and s light all reflects.Wherein aI, bI, bII, dII polarization beam splitting rib
With horizontal direction z-axis positive direction in 135 ° of angle, aII, cI, cII, dI polarization beam splitter prism is in mirror with horizontal direction positive direction
45 ° of angle.
The course of work of the present embodiment is：
The elementary cell of N × N All-optical routing devices is 2 × 2 All-optical routing devices, and 2 × 2 All-optical routing devices are by 8 in the present embodiment
Individual polarization beam splitter prism and 7 LiNbO3 crystal electrooptical switchs are constituted.Electro-optical crystal switch controls the polarization direction of outgoing beam,
Polarization beam splitter prism controls the exit direction of light beam.For the break-make of different electro-optical crystal switchs is combined, it is p to preset input light
Light, 2 × 2 All-optical routing devices have the reversible connected mode of following three kinds of light paths：
1.I roads left end to II roads left end, I roads right-hand member to II roads right-hand member, then embodiment be the first electro-optical crystal switch 1,
Second electro-optical crystal switch 2, the 6th electro-optical crystal switch 6, the 7th electro-optical crystal switch 7 applies half-wave voltage, and remaining electric light is opened
The voltage shut is 0.
To I roads right-hand member, II roads left end to II roads right-hand member, then embodiment is the electricity on all electrooptical switchinges to 2.I roads left end
Press as 0.
3.I roads left end to II roads right-hand member, II roads left end to I roads right-hand member, then embodiment be the 3rd electro-optical crystal switch 3,
4th electro-optical crystal switch 4, the 5th electro-optical crystal switch 5 applies half-wave voltage, and the voltage on remaining electrooptical switching is 0.
If default input light is s light, 2 × 2 All-optical routing devices also have the reversible connected mode of following three kinds of light paths：
To II roads left end, I roads right-hand member to II roads right-hand member, then embodiment is the electricity on all electrooptical switchinges to 1.I roads left end
Press as 0.
2.I roads left end to I roads right-hand member, II roads left end to II roads right-hand member, then embodiment be the first electro-optical crystal switch 1,
7th electro-optical crystal switch 7, the second electro-optical crystal switch 2, the 6th electro-optical crystal switch 6 applies half-wave voltage, and remaining electric light is opened
The voltage shut is 0.
3.I roads left end to II roads right-hand member, II roads left end to I roads right-hand member, then embodiment be the first electro-optical crystal switch 1,
Second electro-optical crystal switch 2, the 3rd electro-optical crystal switch 3, the 4th electro-optical crystal switch 4, the 5th electro-optical crystal switch the 5, the 6th
Electro-optical crystal switch 6, the 7th electro-optical crystal switch 7 apply half-wave voltage.
No matter pre-input light is p light or s light, and above-mentioned three kinds of connected modes light path reverse transfer effect is the same, accordingly
Electrooptical switching working condition is identical.As long as whether the voltage for therefore controlling each electro-optical crystal switch applies, you can realize each 2
The conversion of three kinds of light path connected modes of × 2 All-optical routing devices, final realization is mutual for the light path of the N × N-port being arbitrarily designated
Even.
Embodiment 2
Electro-optical crystal switch used in the present embodiment is potassium dideuterium-hydrogen phosphate crystal electrooptical switching.
Fig. 2 is referred to, Fig. 2 is the All-optical routing device of minor structure 2 × 2 in a kind of 2N ports All-optical routing device of the present invention
Structural representation.As seen from the figure, its composition of 2 × 2 All-optical routing devices includes：
Each 2 × 2 All-optical routing device is made up of 8 polarization beam splitter prisms and 5 potassium dideuterium-hydrogen phosphate crystal electrooptical switchinges, and 2
Light path I in × 2 All-optical routing devices is followed successively by from left to right the 7th polarization beam splitter prism dI, the first electro-optical crystal switch 1, first
It is polarization beam splitter prism aI, the 3rd electro-optical crystal switch 3, the 3rd polarization beam splitter prism bI, the 5th polarization beam splitter prism cI, the 5th electric
Luminescent crystal switch 5；It is inclined that light path II is followed successively by from left to right the 8th polarization beam splitter prism dII, the second electro-optical crystal switch 2, second
Shake beam splitter prism aII, the 4th polarization beam splitter prism bII, the 4th electro-optical crystal switch 4, the 6th polarization beam splitter prism cII.
The course of work of the present embodiment is：
The elementary cell of N × N All-optical routing devices is 2 × 2 All-optical routing devices, and 2 × 2 All-optical routing devices are by 8 in the present embodiment
Individual polarization beam splitter prism and 5 potassium dideuterium-hydrogen phosphate crystal electrooptical switchinges are constituted.Electro-optical crystal switch controls the polarization of outgoing beam
Direction, polarization beam splitter prism controls the exit direction of light beam.For the break-make of different electro-optical crystal switchs is combined, input is preset
Light is p light, and 2 × 2 All-optical routing devices have the reversible connected mode of following three kinds of light paths：
To II roads left end, I roads right-hand member to II roads right-hand member, then embodiment is the He of the first electro-optical crystal switch 1 to 1.I roads left end
Second electro-optical crystal switch 2 applies half-wave voltage, and the voltage on remaining electrooptical switching is 0.
To I roads right-hand member, II roads left end to II roads right-hand member, then embodiment is the electricity on all electrooptical switchinges to 2.I roads left end
Press as 0.
3.I roads left end to II roads right-hand member, II roads left end to I roads right-hand member, then embodiment be the 3rd electro-optical crystal switch 3,
4th electro-optical crystal switch 4, the 5th electro-optical crystal switch 5 applies half-wave voltage, and the voltage on remaining electrooptical switching is 0.
Above-mentioned three kinds of connected modes light path reverse transfer effect is the same, and corresponding electrooptical switching working condition is identical.Therefore
As long as whether the voltage for controlling each electro-optical crystal switch applies, you can three kinds of light paths for realizing each 2 × 2 All-optical routing device connect
The conversion of mode is connect, it is final to realize for the light path of the N × N-port being arbitrarily designated is interconnected.
Embodiment 3
Electro-optical crystal switch used in the present embodiment is lithium columbate crystal electrooptical switching.
Divided in detail with realizing that the embodiment of the All-optical routing device that the light path of any 3 × 3 port is interconnected is done to the present invention below
Analysis explanation：
Specify A to C-terminal mouth in the present embodiment, B to F ports, the light path of E to D ports is interconnected, with specific reference to Fig. 4, any 3
The All-optical routing device schematic diagram of × 3 light paths interconnection.
When A ports input signal light (being preset as p light), through No. 1 electro-optical crystal switch without applied voltage, aI is incided
Polarization beam splitter prism is transmitted, and emergent light applies half-wave voltage and is changed into s light to No. 3 electro-optical crystal switchs, to bI, bII polarizations
Beam splitter prism is launched, and into No. 4 electro-optical crystal switchs for applying half-wave voltage p light is changed into, then in turn through cII polarizations
Beam splitter prism, dII polarization beam splitter prisms, without applied voltage No. 6 electro-optical crystal switchs, M1 reflecting mirrors, without applied voltage 14
Number electro-optical crystal switch, hI polarization beam splitter prisms, without applied voltage No. 12 electro-optical crystal switchs, gI polarization beam splitter prisms, fI
Polarization beam splitter prism, without applied voltage No. 10 electro-optical crystal switchs, eI polarization beam splitter prisms, without applied voltage No. 8 electric light
Crystal switch, M3 reflecting mirrors enter into C-terminal mouth；
When B ports input signal light (being preset as p light), through No. 2 electro-optical crystal switchs without applied voltage, incide
AII polarization beam splitter prisms, bII polarization beam splitter prisms are transmitted, and emergent light applies half-wave voltage and becomes to No. 4 electro-optical crystal switchs
For s light, to cI, cII polarization beam splitter prisms are launched, and into No. 5 electro-optical crystal switchs for applying half-wave voltage p light is changed into,
Then in turn through dI polarization beam splitter prisms, without applied voltage No. 7 electro-optical crystal switchs, without applied voltage No. 20 electric light crystalline substances
Body switch, iII polarization beam splitter prisms, jII polarization beam splitter prisms, without applied voltage No. 18 electro-optical crystal switchs, kII polarizations point
Beam prism, lII polarization beam splitter prisms, without applied voltage No. 16 electro-optical crystal switchs enter into F ports；
When E ports input signal light (being preset as p light), sequentially pass through without applied voltage No. 15 electro-optical crystal switchs,
LI polarization beam splitter prisms, without applied voltage No. 17 electro-optical crystal switchs, kI polarization beam splitter prisms, jI polarization beam splitter prisms, nothings
No. 19 electro-optical crystal switchs of applied voltage, iI polarization beam splitter prisms, without applied voltage No. 21 electro-optical crystal switchs, M2 reflections
Mirror, without applied voltage No. 13 electro-optical crystal switchs, hII polarization beam splitter prisms, gII polarization beam splitter prisms, without applied voltage
No. 11 electro-optical crystal switchs, fII polarization beam splitter prisms, eII polarization beam splitter prisms, without applied voltage No. 9 electro-optical crystal switchs,
M4 reflecting mirrors enter into D ports.The corresponding each electric light of the light path interconnection of concrete each port state of opening the light is as shown in the table：
| Light path is selected | 1-7 electric light opens the light | 8-14 electric light opens the light | 15-21 electric light opens the light |
| A→C,B→F,E→D | 0011100 | 0000000 | 0000000 |
" 1 " represents correspondence electric light and opens the light applying half-wave voltage in table, and " 0 " represents electrooptical switching not applied voltage.Actually
The structure has reversibility of optical path, and for above-mentioned inverse process, corresponding electric light working condition of opening the light is identical, as shown in the table：
| Light path is selected | 1-7 electric light opens the light | 8-14 electric light opens the light | 15-21 electric light opens the light |
| C→A,F→B,D→E | 0011100 | 0000000 | 0000000 |
Realize each electricity of the reversible interconnection of arbitrary port light path of the electro-optical crystal switch of the light path interconnection of any 3 × 3 port
Luminescent crystal switch corresponding statess are as shown in the table：
| Light path is selected | 1-7 electric light opens the light | 8-14 electric light opens the light | 15-21 electric light opens the light |
| A◆B,C◆D,E◆F | 1000000 | 1100000 | 1000000 |
| A◆B,C◆E,D◆F | 1000001 | 0011101 | 0000000 |
| A◆B,C◆F,D◆E | 1000001 | 0000001 | 0000000 |
| A◆C,B◆D,E◆F | 0011101 | 1000001 | 1000001 |
| A◆C,B◆E,D◆F | 0011100 | 0000000 | 0011100 |
| A◆C,B◆F,D◆E | 0011100 | 0000000 | 0000000 |
| A◆D,B◆C,E◆F | 0000001 | 0000000 | 1000001 |
| A◆D,B◆E,C◆F | 0011100 | 0011100 | 0011100 |
| A◆D,B◆F,C◆E | 0011100 | 0011100 | 0000000 |
| A◆E,B◆C,D◆F | 0000000 | 0000000 | 0011100 |
| A◆E,B◆D,C◆F | 0000000 | 0011100 | 0011100 |
| A◆E,B◆F,C◆D | 0001100 | 1100000 | 0011000 |
| A◆F,B◆C,D◆E | 0000000 | 0000000 | 0000000 |
| A◆F,B◆D,C◆E | 0000000 | 0011100 | 0000000 |
| A◆F,B◆E,C◆D | 0000000 | 1100011 | 0000000 |
The break-make of electrooptical switching selects that respective algorithms or decision of tabling look-up can be passed through in practical application.
Described electro-optical crystal switch, polarization beam splitter prism are matured product or technology, can buy or entrust manufacture.
Embodiment 4
The present embodiment is N × N All-optical routing devices of 2 × 2 All-optical routing devices composition, as shown in figure 5, the N is even number, bag
Include N22 × 2/2-N+1 described All-optical routing devices, number consecutively is i-th, No. j 2 × 2 All-optical routing device i take successively all over 1 to
All positive integers of N-1, when i is taken as odd number, j takes successively all positive integers all over 1 to N/2, and when i is taken as even number, j is successively
The all positive integers all over 1 to N/2-1 are taken, its annexation is：
1) when the positive integer that j values are arbitrary 1 to N/2, the 1st, No. j 2 × 2 All-optical routing device is connected to the 1st, j+1
Number 2 × 2 All-optical routing devices, N-1, No. j 2 × 2 All-optical routing devices are connected to N-1, No. j+1 2 × 2 All-optical routing devices；
2) when the even number that i values are arbitrary 1 to N-1, when j values are the positive integer of arbitrary 1 to N/2-1, i-th, No. j
Four ports of 2 × 2 All-optical routing devices are respectively connecting to the i-th -1, No. j 2 × 2 All-optical routing device, i-1, No. j+1 2 × 2 full light paths
By device, i+1, No. j 2 × 2 All-optical routing device, i+1, No. j+1 2 × 2 All-optical routing devices.
N × N All-optical routings device also includes 2N N × N All-optical routing device light path input/output terminal, respectively when i takes
When being worth odd number any for 1 to N-1, N/2 i-th, the first light path input/output terminal of No. 12 × 2 All-optical routing devices, N/2 the
I, the 3rd light path input/output terminal of No. 12 × 2 All-optical routing devices, N/2 individual i-th, the second light of No. N/2 2 × 2 All-optical routing devices
Road input/output terminal and N/2 individual i-th, the 4th light path input/output terminal of No. N/2 2 × 2 All-optical routing devices.
When n is large, for the corresponding table of each electro-optical crystal switch corresponding statess for obtaining the reversible interconnection of arbitrary port light path,
Using following steps：
1) possibility for taking time all each electro-optical crystal switchs is combined (0000 to 1111 ... from binary number 0000 ...
1111 take time, and the digit of the binary number is opened the light number for the electro-optic crystal of N × N All-optical routing devices), and record the combination and adopt
With during the combination, the reversible interconnection situation of each port light path；
2) by step 1) data that obtain, the corresponding electro-optic crystal of the reversible interconnection situation of each port light path of taxonomic revision
Switches state, obtains each electro-optical crystal switch corresponding statess correspondence table of the reversible interconnection of arbitrary port light path.
Embodiment 5
The present embodiment is N × N All-optical routing devices of 2 × 2 All-optical routing devices composition, as shown in fig. 6, the N is odd number, bag
Include (N2- N)/2 described in 2 × 2 All-optical routing devices, number consecutively is i-th, No. j 2 × 2 All-optical routing device i take successively all over 1 to
All positive integers of N-1, when i is taken as odd number, j takes successively all positive integers all over 1 to (N+1)/2, when i is taken as even number, j
The all positive integers all over 1 to (N-1)/2 are taken successively, and its annexation is：
1) when positive integer of the j values for arbitrary 1 to (N+1)/2, the 1st, No. j 2 × 2 All-optical routing device is connected to the 1st,
No. j+1 2 × 2 All-optical routing devices, (N-1)/2, No. j 2 × 2 All-optical routing devices are connected to (N-1)/2, No. j+1 2 × 2 full light
Router, (N-1)/2, two ports of No. j 2 × 2 All-optical routing devices are respectively connecting to (N-3)/2, No. j 2 × 2 All-optical routings
Device and (N-3)/2, No. j+1 2 × 2 All-optical routing devices；
2) when the even number that i values are arbitrary 1 to N-3, when j values are arbitrary 1 to (N-1)/2 positive integer, i-th, j
Four ports of number 2 × 2 All-optical routing devices are respectively connecting to the i-th -1, No. j 2 × 2 All-optical routing device, i-1, No. j+1 2 × 2 full light
Router, i+1, No. j 2 × 2 All-optical routing device, i+1, No. j+1 2 × 2 All-optical routing devices.
N × N All-optical routings device also includes 2N N × N All-optical routing device light path input/output terminal, respectively when i takes
When being worth odd number any for 1 to N-1, (N-1)/2 i-th, the first light path input/output terminal, (N- of No. 12 × 2 All-optical routing devices
1)/2 i-th, the 3rd light path input/output terminal, (N-1)/2 i-th of No. 12 × 2 All-optical routing devices, (N+1)/No. 22 × 2 complete
Second light path input/output terminal of optical router, (N-1)/2 i-th, the 4th light path input of No. N/2 2 × 2 All-optical routing device/
Outfan, a N, the 3rd light path input/output terminal and a N of No. 1 All-optical routing device, (N+1)/No. 2 All-optical routing
4th light path input/output terminal of device.
When n is large, for the corresponding table of each electro-optical crystal switch corresponding statess for obtaining the reversible interconnection of arbitrary port light path,
Using following steps：
1) possibility for taking time all each electro-optical crystal switchs is combined (0000 to 1111 ... from binary number 0000 ...
1111 take time, and the digit of the binary number is opened the light number for the electro-optic crystal of N × N All-optical routing devices), and record the combination and adopt
With during the combination, the reversible interconnection situation of each port light path；
2) by step 1) data that obtain, the corresponding electro-optic crystal of the reversible interconnection situation of each port light path of taxonomic revision
Switches state, obtains each electro-optical crystal switch corresponding statess correspondence table of the reversible interconnection of arbitrary port light path.
Claims (12)
1. the All-optical routing device of one kind 2 × 2, including some polarization beam splitter prisms and some electro-optical crystal switchs, each polarization beam splitting
Prism is provided with incident optical port, it is characterised in that be respectively provided with electro-optical crystal switch at each polarization beam splitter prism incidence optical port,
The electro-optical crystal switch is used for control into the polarization direction of the incident beam of polarization beam splitter prism incidence optical port, so as to pass through partially
The beam splitter prism that shakes controls the exit direction of the light beam, some polarization beam splitter prisms include the first polarization beam splitter prism (aI),
Second polarization beam splitter prism (aII), the 3rd polarization beam splitter prism (bI), the 4th polarization beam splitter prism (bII), the 5th polarization beam splitting
Prism (cI), the 6th polarization beam splitter prism (cII), the 7th polarization beam splitter prism (dI), the 8th polarization beam splitter prism (dII)；Often
Individual polarization beam splitter prism is provided with incident optical port, reflection of polarization optical port and transmission optical port；Wherein, the first polarization beam splitter prism
(aI) reflection of polarization optical port is connected with the reflection of polarization optical port of the second polarization beam splitter prism (aII), the 3rd polarization beam splitting rib
The reflection of polarization optical port of mirror (bI) is connected with the reflection of polarization optical port of the 5th polarization beam splitter prism (cI), the 5th polarization beam splitting rib
The reflection of polarization optical port of mirror (cI) is connected with the reflection of polarization optical port of the 6th polarization beam splitter prism (cII), the 7th polarization beam splitting
The reflection of polarization optical port of prism (dI) is connected with the reflection of polarization optical port of the 8th polarization beam splitter prism (dII)；Described 2 × 2
All-optical routing device is additionally provided with the first light path input/output terminal, the second light path input/output terminal, the 3rd light path input/output terminal
With the 4th light path input/output terminal；The incident optical port of the first polarization beam splitter prism (aI) and transmission optical port, the 3rd polarization beam splitting rib
The incident optical port of mirror (bI) and transmission optical port, the transmission optical port of the 5th polarization beam splitter prism (cI) and incident optical port and the 7th polarization
The transmission optical port of beam splitter prism (dI) and incident optical port series connection, the optical port at the series connection light path two ends be respectively the input of the first light path/
Outfan and the second light path input/output terminal；It is the incident optical port of the second polarization beam splitter prism (aII) and transmission optical port, the 4th inclined
Shake beam splitter prism (bII) incident optical port with transmission optical port, the transmission optical port of the 6th polarization beam splitter prism (cII) and incidence optical port
With the transmission optical port of the 8th polarization beam splitter prism (dII) and incident optical port series connection, the optical port at the series connection light path two ends is respectively the
Three light path input/output terminals and the 4th light path input/output terminal.
2. 2 × 2 All-optical routing device according to claim 1, it is characterised in that the incidence of the first polarization beam splitter prism (aI)
Optical port and transmission optical port, the incident optical port of the 3rd polarization beam splitter prism (bI) and transmission optical port, the 5th polarization beam splitter prism (cI)
Transmission optical port and incident optical port and the transmission optical port and incident optical port of the 7th polarization beam splitter prism (dI) between series connection mode
For：The transmission optical port of the first polarization beam splitter prism (aI) is connected to the incident optical port of the 3rd polarization beam splitter prism (bI), and the 3rd is inclined
The transmission optical port of beam splitter prism (bI) of shaking is connected to the transmission optical port of the 5th polarization beam splitter prism (cI), and the 5th shakes beam splitter prism
Incident optical port is connected to the 7th transmission optical port for shaking beam splitter prism；The incident optical port of the second polarization beam splitter prism (aII) and transmission
Optical port, the incident optical port of the 4th polarization beam splitter prism (bII) and transmission optical port, the transmitted light of the 6th polarization beam splitter prism (cII)
Mouthful and the series system of transmission optical port and incidence optical port of incident optical port and the 8th polarization beam splitter prism (dII) be：Second polarization
The transmission optical port of beam splitter prism (aII) is connected to the transmission optical port of the 4th polarization beam splitter prism (bII), the 4th polarization beam splitter prism
(bII) incident optical port is connected to the incident optical port of the 6th polarization beam splitter prism (cII), the 6th polarization beam splitter prism (cII)
Transmission optical port is connected to the transmission optical port of the 8th polarization beam splitter prism (dII).
3. 2 × 2 All-optical routing device according to claim 2, it is characterised in that 2 × 2 All-optical routing device each polarization
The set-up mode that electro-optical crystal switch is additionally provided with the incident optical port of beam splitter prism is：Including being arranged on the first polarization beam splitting rib
The first electro-optical crystal switch (1) before mirror (aI) entrance port, second be arranged on before the second polarization beam splitter prism (aII) entrance port
Electro-optical crystal switch (2), is arranged on the 3rd polarization beam splitter prism (bI) incidence optical port and transmits with the first polarization beam splitter prism (aI)
The 3rd electro-optical crystal switch (3) between optical port, is arranged on the 4th polarization beam splitter prism (bII) incidence optical port with the 6th polarization point
The 4th electro-optical crystal switch (4) between the incident optical port of beam prism (cII), is arranged on entering for the 5th polarization beam splitter prism (cI)
The 5th electro-optical crystal switch (5) penetrated between optical port and the 7th polarization beam splitter prism (dI) transmission optical port, is arranged on the 7th polarization
The 7th electro-optical crystal switch (7) before beam splitter prism (dI) entrance port, before being arranged on the 8th polarization beam splitter prism (dII) entrance port
The 6th electro-optical crystal switch (6).
4. 2 × 2 All-optical routing device according to claim 1, it is characterised in that the incidence of the first polarization beam splitter prism (aI)
Optical port and transmission optical port, the incident optical port of the 3rd polarization beam splitter prism (bI) and transmission optical port, the 5th polarization beam splitter prism (cI)
Transmission optical port and incident optical port and the transmission optical port and incident optical port of the 7th polarization beam splitter prism (dI) between series connection mode
For：The incident optical port of the 7th polarization beam splitter prism (dI) is connected to the incident optical port of the first polarization beam splitter prism (aI), and first is inclined
The transmission optical port of beam splitter prism (aI) of shaking is connected to the incident optical port of the 3rd polarization beam splitter prism (bI), the 3rd polarization beam splitter prism
(bI) transmission optical port is connected to the transmission optical port of the 5th polarization beam splitter prism (cI)；Second polarization beam splitter prism (aII's) enters
Optical port is penetrated with transmission optical port, the incident optical port of the 4th polarization beam splitter prism (bII) and transmission optical port, the 6th polarization beam splitter prism
(cII) transmission optical port and the series connection side of the transmission optical port and incident optical port of incident optical port and the 8th polarization beam splitter prism (dII)
Formula is：The incident optical port of the 8th polarization beam splitter prism (dII) is connected to the incident optical port of the second polarization beam splitter prism (aII), the
The transmission optical port of two polarization beam splitter prisms (aII) is connected to the transmission optical port of the 4th polarization beam splitter prism (bII), the 4th polarization point
The incident optical port of beam prism (bII) is connected to the incident optical port of the 6th polarization beam splitter prism (cII).
5. 2 × 2 All-optical routing device according to claim 4, it is characterised in that 2 × 2 All-optical routing device each polarization
The set-up mode that electro-optical crystal switch is additionally provided with the incident optical port of beam splitter prism is：Including being arranged on the 7th polarization beam splitting rib
The first electro-optical crystal switch (1) between mirror (dI) entrance port and first point of polarisation beam prism incidence mouth, is arranged on the 8th polarization
The second electro-optical crystal switch (2) between beam splitter prism (dII) entrance port and the second polarization beam splitter prism (aII) entrance port, if
Put the 3rd electric light between the 3rd polarization beam splitter prism (bI) incidence optical port and the first polarization beam splitter prism (aI) transmission optical port
Crystal switch (3), is arranged on the incidence of the 4th polarization beam splitter prism (bII) incidence optical port and the 6th polarization beam splitter prism (cII)
The 4th electro-optical crystal switch (4) between optical port, is arranged on the incident optical port and the 7th polarization of the 5th polarization beam splitter prism (cI)
The 5th electro-optical crystal switch (5) between beam splitter prism (dI) transmission optical port.
6. 2 × 2 All-optical routing devices according to claim 1,2,3,4 or 5, it is characterised in that when described electro-optic crystal
It is identical through the outgoing beam of the electro-optical crystal switch and the polarization direction of incident beam when switch applied voltage is zero.
7. 2 × 2 All-optical routing devices according to claim 1,2,3,4 or 5, it is characterised in that when described electro-optic crystal
When switch applies corresponding half-wave voltage, occur with the polarization direction of incident beam through the outgoing beam of the electro-optical crystal switch
90 ° of changes.
8. 2 × 2 All-optical routing devices according to claim 1,2,3,4 or 5, it is characterised in that described electro-optic crystal is opened
Close as lithium columbate crystal electrooptical switching, potassium dihydrogen phosphate crystal electrooptical switching, potassium dideuterium-hydrogen phosphate crystal electrooptical switching or tantalic acid
Crystalline lithium electrooptical switching.
9. N × N All-optical routing devices that 2 × 2 All-optical routing device according to any one of claim 1 to 8 is constituted, its feature
It is that the N is even number, including N2/ 2-N+1 2 × 2 described All-optical routing devices, number consecutively is i-th, No. j 2 × 2 full light
Router i takes successively all positive integers all over 1 to N-1, and when i is taken as odd number, j takes successively all positive integers all over 1 to N/2,
When i is taken as even number, j takes successively all positive integers all over 1 to N/2-1, and its annexation is：
1) when the positive integer that j values are arbitrary 1 to N/2, the 1st, No. j 2 × 2 All-optical routing device are connected to the 1st, No. j+1 2 ×
2 All-optical routing devices, N-1, No. j 2 × 2 All-optical routing devices are connected to N-1, No. j+1 2 × 2 All-optical routing devices；
2) when the even number that i values are arbitrary 1 to N-1, when j values are the positive integer of arbitrary 1 to N/2-1, i-th, No. j 2 × 2
Four ports of All-optical routing device are respectively connecting to the i-th -1, No. j 2 × 2 All-optical routing device, i-1, No. j+1 2 × 2 All-optical routings
Device, i+1, No. j 2 × 2 All-optical routing device, i+1, No. j+1 2 × 2 All-optical routing devices.
10. N × N All-optical routings device according to claim 9, it is characterised in that N × N All-optical routings device also includes
2N N × N All-optical routing device light path input/output terminal, respectively when i values odd number any for 1 to N-1, N/2 i-th, 1
First light path input/output terminal of number 2 × 2 All-optical routing devices, N/2 i-th, the 3rd light path of No. 12 × 2 All-optical routing devices is defeated
Enter/outfan, N/2 i-th, the second light path input/output terminal and N/2 of No. N/2 2 × 2 All-optical routing devices i-th, No. N/2 2
4th light path input/output terminal of × 2 All-optical routing devices.
N × N All-optical routing devices of 11. 2 × 2 All-optical routing device compositions according to any one of claim 1 to 8, it is special
Levy and be, the N is odd number, including (N2- N)/2 described in 2 × 2 All-optical routing devices, number consecutively is i-th, and No. j is 2 × 2 complete
Optical router i takes successively all positive integers all over 1 to N-1, when i is taken as odd number, j take successively all over 1 to (N+1)/2 it is all just
Integer, when i is taken as even number, j takes successively all positive integers all over 1 to (N-1)/2, and its annexation is：
1) when positive integer of the j values for arbitrary 1 to (N+1)/2, the 1st, No. j 2 × 2 All-optical routing device is connected to the 1st, j+1
Number 2 × 2 All-optical routing devices, (N-1)/2, No. j 2 × 2 All-optical routing devices are connected to (N-1)/2, No. j+1 2 × 2 All-optical routings
Device, (N-1)/2, two ports of No. j 2 × 2 All-optical routing devices are respectively connecting to (N-3)/2, No. j 2 × 2 All-optical routing devices and
(N-3)/2, No. j+1 2 × 2 All-optical routing devices；
2) when the even number that i values are arbitrary 1 to N-3, when j values are arbitrary 1 to (N-1)/2 positive integer, i-th, No. j 2
Four ports of × 2 All-optical routing devices are respectively connecting to the i-th -1, No. j 2 × 2 All-optical routing device, i-1, No. j+1 2 × 2 full light paths
By device, i+1, No. j 2 × 2 All-optical routing device, i+1, No. j+1 2 × 2 All-optical routing devices.
12. N × N All-optical routings devices according to claim 11, it is characterised in that N × N All-optical routings device also includes
2N N × N All-optical routing device light path input/output terminal, respectively when i values are any odd numbers of 1 to N-1, (N-1)/2 the
I, the first light path input/output terminal, (N-1)/2 i-th of No. 12 × 2 All-optical routing devices, the 3rd of No. 12 × 2 All-optical routing devices the
Light path input/output terminal, (N-1)/2 i-th, (N+1)/the second light path input/output terminal, (N- of No. 22 × 2 All-optical routing devices
1)/2 i-th, the 4th light path input/output terminal of No. N/2 2 × 2 All-optical routing devices, a N, the of No. 1 All-optical routing device
Three light path input/output terminals and a N, (N+1)/the 4th light path input/output terminal of No. 2 All-optical routing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410271240.5A CN104007568B (en) | 2014-06-17 | 2014-06-17 | 2*2 full-optical router and N*N full-optical router composed of 2*2 full-optical routers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410271240.5A CN104007568B (en) | 2014-06-17 | 2014-06-17 | 2*2 full-optical router and N*N full-optical router composed of 2*2 full-optical routers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104007568A CN104007568A (en) | 2014-08-27 |
| CN104007568B true CN104007568B (en) | 2017-04-12 |
Family
ID=51368303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410271240.5A Expired - Fee Related CN104007568B (en) | 2014-06-17 | 2014-06-17 | 2*2 full-optical router and N*N full-optical router composed of 2*2 full-optical routers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104007568B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104777342A (en) * | 2015-04-16 | 2015-07-15 | 福州大学 | Device and method for linearly and rapidly measuring half-wave voltage of linear electro-optical crystal |
| CN110460524B (en) * | 2019-08-13 | 2022-03-25 | 上海交通大学 | Routing strategy method for high-performance computer photoelectric hybrid network |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203965756U (en) * | 2014-06-17 | 2014-11-26 | 南京中科神光科技有限公司 | The full optical router of N × N of 2 × 2 full optical routers and composition thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5692077A (en) * | 1996-04-30 | 1997-11-25 | Wavefront Research, Inc. | Optical time shifter and routing system |
| US6134358A (en) * | 1998-08-27 | 2000-10-17 | Chorum Technologies Inc. | N x N switch array with reduced components |
| US6360037B1 (en) * | 1999-06-16 | 2002-03-19 | Nuonics, Inc. | Polarization-based fiber-optic switch |
| CN101329426A (en) * | 2008-07-18 | 2008-12-24 | 清华大学 | Beam Multiplexing and Time-Sharing Combination Method |
-
2014
- 2014-06-17 CN CN201410271240.5A patent/CN104007568B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203965756U (en) * | 2014-06-17 | 2014-11-26 | 南京中科神光科技有限公司 | The full optical router of N × N of 2 × 2 full optical routers and composition thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104007568A (en) | 2014-08-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| El-Bawab | Optical switching | |
| US6005697A (en) | Multi-wavelength cross-connect optical network | |
| CN103412367B (en) | On a kind of sheet of integrated light guide chip, polarization does not rely on system | |
| JPH0321932A (en) | Optical mutual connector | |
| CN102638311A (en) | Optical network-on-chip system based on wavelength allocation and communication method of system | |
| US6275312B1 (en) | Optical routing switch | |
| CN203965756U (en) | The full optical router of N × N of 2 × 2 full optical routers and composition thereof | |
| CA2000646C (en) | Switch for selectively switching optical wavelengths | |
| US7155086B2 (en) | Optical signal processing device using optical gate | |
| CN104007568B (en) | 2*2 full-optical router and N*N full-optical router composed of 2*2 full-optical routers | |
| Cheng et al. | Smart routing tables for integrated photonic switch fabrics | |
| US20050174639A1 (en) | Fast all-optical switches and attenuators | |
| US6337931B1 (en) | Effective optical path length compensable optical device | |
| Biberman et al. | Photonic network-on-chip architecture using 3D integration | |
| US20140355933A1 (en) | Optical circuit switch with integral circulators | |
| Potasek et al. | Multiterabit-per-second all-optical switching in a nonlinear directional coupler | |
| Haga et al. | An integrated 1× 4 high-speed optical switch and its applications to a time demultiplexer | |
| Aida et al. | Switching operation of PN-junction-type silicon photonics optical switch driven by label-controlled FPGA | |
| JP2004500722A (en) | Multi-wavelength cross-connect optical network | |
| CN115268115A (en) | Polarization-independent electro-optical switch | |
| CN1332242C (en) | Total fiber-optical magneto-optical shutter | |
| EP4275091B1 (en) | Demultiplexer and method of use thereof | |
| Zhixun et al. | A full-duplex 5× 5 optical router based on a hybrid photonic-plasmonic switch | |
| CN1444070A (en) | High-speed expandable optical switch | |
| JP2827501B2 (en) | Optical self-routing circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190211 Address after: Room 901, Building A1, Longgang Science Park, Hengyuan Road, Nanjing Economic and Technological Development Zone, Jiangsu Province Patentee after: Nanjing Aerospace Communications Technology Co.,Ltd. Address before: No. 18 Xinghe Road, Nanjing Economic and Technological Development Zone, Nanjing City, Jiangsu Province Patentee before: NANJING ZHONGKE SHENGUANG TECHNOLOGY Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170412 |