CN106936506B - A kind of optical node and related system - Google Patents
A kind of optical node and related system Download PDFInfo
- Publication number
- CN106936506B CN106936506B CN201511025707.9A CN201511025707A CN106936506B CN 106936506 B CN106936506 B CN 106936506B CN 201511025707 A CN201511025707 A CN 201511025707A CN 106936506 B CN106936506 B CN 106936506B
- Authority
- CN
- China
- Prior art keywords
- waveguide
- optical
- communication
- optical signal
- optical node
- 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.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/50—Transmitters
- H04B10/501—Structural aspects
- H04B10/503—Laser transmitters
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/50—Transmitters
- H04B10/501—Structural aspects
- H04B10/506—Multiwavelength transmitters
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0201—Add-and-drop multiplexing
- H04J14/0215—Architecture aspects
- H04J14/022—For interconnection of WDM optical networks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0278—WDM optical network architectures
- H04J14/0283—WDM ring architectures
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Optics & Photonics (AREA)
- Optical Integrated Circuits (AREA)
- Optical Communication System (AREA)
Abstract
This application discloses a kind of optical node, the first communication waveguide of connection and the second communication waveguide, the optical node include: laser source, detector, the first connection waveguide, the second connection waveguide, the first closed waveguide and MR group；MR group includes the first MR, the 2nd MR and the 3rd MR；Laser source connect waveguide connection with first, and the first connection waveguide couples the first closed waveguide by the first MR, and detector connect waveguide connection with second, and the second connection waveguide couples the first closed waveguide by the first MR；First closed waveguide also passes through the 2nd MR coupling the first communication waveguide, and the first closed waveguide also passes through the 3rd MR coupling the second communication waveguide.In this way, can either can also receive the optical signal in two waveguides by MR by MR group by optical signal transmission to two communication waveguides, realize optical node to the transmitted in both directions of optical signal, improve the utilization rate of resource.
Description
Technical field
This application involves light network field more particularly to a kind of optical nodes and related system.
Background technique
Photon technology be successfully applied to wide area network (full name in English: Wide Area Network, english abbreviation:
WAN), local area network (full name in English: Local Area Network, english abbreviation: LAN) and communication between plates, and calculating more
Its advantage is all presented in machine system and interconnection path.Based on optical waveguide and micro-resonant cavity (full name in English: Micro-
Resonator, english abbreviation: MR) the design of on piece optical-fiber network reached its maturity, they can be realized by silicon-based technologies,
And compatible with CMOS technology, the diameter of single micro-resonant cavity can be down to 3 μm, and switch time can be down to 30ps.Light network technology
Then it is applied to the design, light network has suitable broad application prospect, the study found that light network can provide ten times even hundred
Chip I/O bandwidth of times electric pin of tradition.
Micro-resonant cavity (MR) is basic module used on piece optical-fiber network.It is used as modulation unit, and exchange is single
Member and receiving unit.The optical node in optical-fiber network includes transmitters and receivers in the prior art, in a receiver, altogether
There are N group filter (filter) and N group detector (photodetector), is each responsible for detecting the light letter of N number of different wave length
Number.Assuming that one share N number of optical node in network, by the importing of laser source outside piece, in a waveguide simultaneous transmission N number of light
Wavelength.In transmitting terminal, each optical node can modulate oneself exclusive optical wavelength signal, and in receiving end, each filter is set
Meter only receives the light signal strength of 1/N.Optical signal is through entering detector after wave filter, to be converted into corresponding telecommunications
Number.In optical node in the prior art, each wavelength can only transmission of one line signal, it is this design so that whole network bandwidth resources
Largely wasted.Also, in the optical node, the filter in transmitter is only used for the transmission of optical signal, in receiver
Filter is only used for the reception of optical signal, cannot achieve the transmitted in both directions in practical application, causes the waste of resource.
Summary of the invention
This application provides a kind of optical node and related systems, can be used for improving the utilization rate of resource.
The application first aspect provides a kind of optical node, applied to the optical-fiber network of wavelength-division multiplex, optical node connection first
Communication waveguide is with waveguide two communication waveguides of the second communication, it can be achieved that the optical signal for communicating waveguides progress with this two interacts biography
It is defeated, specifically, the optical node includes:
For generating the laser source of optical signal, the detector for receiving optical signal, the first connection waveguide, the second connection wave
It leads, the first closed waveguide and micro-resonant cavity MR group；Wherein, the first connection waveguide can be different waves from the second connection waveguide
It leads, or two sections in same waveguide, or same waveguide；MR group includes the first MR, the 2nd MR and the
Three MR, the first connection of coupling waveguide communicates waveguide with the first closed waveguide, first and communicates wave with the first closed waveguide, second respectively
It leads and the first closed waveguide；Laser source connect waveguide connection with first, in this way, optical signal caused by laser source can then pass through
First MR and the 2nd MR are transferred in the first communication waveguide, moreover it is possible to be transferred to the second communication wave by the first MR and the 3rd MR
It leads；Detector connect waveguide connection with second, in this way, the optical signal in the first communication waveguide then can by the 2nd MR and
First MR is transferred in detector, and the optical signal in the second communication waveguide then can be transferred to spy by the 3rd MR and the first MR
It surveys in device.The optical signal in a waveguide is exchanged into the characteristic functions in another waveguide since MR has, when MR is received
When the electric signal of high level, MR is then in resonant state, then is able to carry out the exchange transmission of optical signal.So the optical node can
The optical signal in two waveguides in optical signal transmission to two communication waveguides, enough will can also be received by MR by MR group, it is real
Show optical node to the transmitted in both directions of optical signal, improves the utilization rate of resource.
Optionally, MR group further includes the 4th MR and the 5th MR, and the first closed waveguide is closed circulation structure, which follows
Ring structure is formed with double circulation route, forms two inner circulation structures and two outer circulation structures, and the 4th MR is located in one
It between the outside of circulation and the inside of an outer circulation, and is of coupled connections, the 5th MR is located at the outside recycled in another
It between the inside of another outer circulation, and is of coupled connections, in this way, into the optical signal in the first closed waveguide at
After the 4th MR of resonant state or the 5th MR, the transmission direction of the optical signal has then changed, with transmission direction phase before
Instead.In this way, optical signal caused by laser source can then pass by the 4th MR and the 5th MR and the characteristic of the first closed waveguide
The defeated any end that waveguide is communicated to any end of the first communication waveguide or second, that is to say, that the light letter that laser source issues
It number can be transferred to any one port of four ports of two communication waveguides；Similarly, four ports of two communication waveguides
Any one port send come in optical signal can also be transferred in the detector in optical node.This just realizes optical node pair
It communicates waveguide and carries out bidirectional optical signal transmission, improve the utilization rate of resource.
Optionally, the first MR, the 2nd MR, the 3rd MR, the 4th MR and the 5th MR are two or more respectively.By
A kind of optical signal of specific wavelength can only be transmitted in a MR, so, if the MR of each position only includes one respectively in optical node
When a, in synchronization, which can only transmit the optical signal of a specific wavelength, so that efficiency of transmission is lower.In order to mention
The efficiency of transmission of high MR, in optical node provided herein, the MR on each position can be two or more, together
MR on one position transmits the optical signal of different wave length respectively, and the MR on each position can be set to identical quantity, in this way, one
Aspect, laser source can then be simultaneously emitted by the optical signal transmission of different wave length to communicating waveguide, and detector can also connect simultaneously
The optical signal for receiving different wave length improves the efficiency of transmission of optical signal；On the other hand, since the MR of same position is not done mutually
It disturbs, then laser source, while sending optical signal to a port, detector can also receive the light letter of other ports transmission
Number, improve the utilization rate of resource.
Optionally, optical node further includes the second closed waveguide, and MR group further includes the 6th MR, the 7th MR, the 8th MR, the 9th MR
And the tenth MR；With the first closed waveguide structure as function, the second closed waveguide also connects two and leads to for second closed waveguide
Believe waveguide, is third communication waveguide and fourth communication waveguide, the 6th MR, the 7th MR, the 8th MR, the 9th MR and the tenth MR respectively
It is all corresponding, function with the first MR, the 2nd MR, the 3rd MR, the 4th MR and the 5th position MR in the first closed waveguide
It is similar, so that optical signal caused by laser source can also be transferred to any one end of third communication waveguide in the optical node
Mouthful, it can also be transferred to any one port of fourth communication waveguide；Third communication waveguide and fourth communication waveguide, this two logical
Believe that any one port of four ports of waveguide sends the optical signal come in and can also be transferred in the detector in optical node.
Second closed waveguide and the first closed waveguide form an overlaying structure, realize that an optical node is connected to four communications
Waveguide, in fact, the number of this overlaying structure do not limit, which can also be superimposed more closed waveguides, with connection
More communication waveguides.Although the utilization rate of resource can be improved in this way so that a plurality of communication waveguide share laser source and
One detector still if the communication waveguide of connection is excessive, also will affect the efficiency of transmission of optical signal, because not only transmitting road
Diameter becomes remote, and a plurality of communication waveguide shares a laser source and a detector, also extends communication transmitting light wave guide letter
Number waiting time.So in practical applications, the number in optical node comprising closed waveguide can be limited according to the actual situation,
To the number of one optical node connection communication waveguide of limitation, optimal optical signal transmission scheme is realized.
The application second aspect provides a kind of optical network system of wavelength-division multiplex, comprising: a plurality of communication waveguide, multiple light sections
Point and controller, multiple optical nodes connect a plurality of communication waveguide, wherein multiple optical nodes and a plurality of number for communicating waveguide
Mesh is not identical, in general, an optical node can connect two or four even more communication waveguides, controller connection is multiple
Optical node, wherein the multiple optical node is mentioned-above optical node, and controller is for controlling each of multiple optical nodes
MR is in resonant state or is not at resonant state.
In alternatively possible implementation, optical node is integrated with the function of controller, i.e., is integrated with electricity in optical node
Input terminal, electrical input connect each MR in optical node, realize the control of MR state, wherein electrical input is corresponding with MR's
Relationship can be one-to-one, or one-to-many.
Detailed description of the invention
Fig. 1 is one embodiment schematic diagram of optical node provided herein；
Fig. 2 is another embodiment schematic diagram of optical node provided herein；
Fig. 3 is another embodiment schematic diagram of optical node provided herein；
Fig. 4 is one embodiment schematic diagram of the loop network of optical node described in use provided herein；
Fig. 5 is one embodiment schematic diagram of the optical network system of wavelength-division multiplex provided herein.
Specific embodiment
This application provides a kind of optical node and related systems, for improving the utilization rate of resource.
Below in conjunction with the attached drawing in the application, the technical solution in the application is clearly and completely described, is shown
So, described embodiments are only a part of embodiments of the present application, instead of all the embodiments.Based on the reality in the application
Apply example, those skilled in the art's every other embodiment obtained without creative efforts belongs to this
Apply for the range of protection.
Micro-resonant cavity (MR) is a kind of optical exchanger part, and function is can be controllably the specific frequency in a waveguide
The optical signal of rate exchanges in another waveguide.MR is basic module used on piece optical-fiber network.It is used as modulating
Unit, crosspoint and receiving unit.MR is utilized as crosspoint and receiving unit this two functions in this programme.MR has pair
Two vertical ports, if the MR is resonant state, when optical signal enters from the port of one end of MR, then optical signal can be handed over
The port of the other end is changed to, it, then can be with so MR is placed between two waveguides, and two ports of MR couple connection with waveguide
Optical signal is exchanged in different waveguides from laser source.MR has the selection characteristic reversed to optical signal, for example, MR coupling first
Waveguide and second waveguide, when the optical signal in first wave guide exchanges to second waveguide by MR, at this time in second waveguide
The transmission direction of optical signal is transmitted in first wave guide contrary with optical signal.On the other hand, MR can be with Integrated Light
Electric explorer, then the MR just has the function of receiving unit, the optical signal of specific frequency can be converted to corresponding telecommunications
Number.
Shown in referring to Fig.1, the application provides a kind of optical node 100, applied to the optical-fiber network of wavelength-division multiplex, the optical node
100 the first communication waveguides 112 of connection and the second communication waveguide 113, communicate waveguide 112 and institute for realizing with described first
The transmission of the optical signal of the second communication waveguide 113 is stated, the optical node 100 includes:
For generate optical signal laser source 106, for receive optical signal detector 107, first connect waveguide 116,
Second connection waveguide 117, the first closed waveguide 115 and micro-resonant cavity MR group；The MR group includes the first MR101, second
MR102 and the 3rd MR104；The laser source 106 connect waveguide 116 with described first and connects, the first connection waveguide 116
First closed waveguide 115 is coupled by the first MR101, the detector 107 connect waveguide 117 with described second and connects
It connects, the second connection waveguide 117 couples first closed waveguide 115 by the first MR101；The first closure wave
It leads 115 and the first communication waveguide 112 is also coupled by the 2nd MR102, first closed waveguide 115 is also by described
3rd MR104 coupling the second communication waveguide 113；The MR group is for passing optical signal caused by the laser source 106
The first communication waveguide 112 or the second communication waveguide 113 are transported to, the MR group is also used to the first communication waveguide 112 or the
Optical signal transmission in two communication waveguides 113 is to the detector 107.
Due to laser source connection the first connection waveguide, the first connection waveguide couples the first closed waveguide by the first MR, the
One closed waveguide also passes through the 2nd MR coupling the first communication waveguide, and the first closed waveguide also passes through the 3rd MR coupling the second communication wave
It leads, then optical signal caused by laser source then can be transferred to the first communication waveguide by the first MR and the 2nd MR, also can
The second communication waveguide is enough transferred to by the first MR and the 3rd MR；Detector connection the second connection waveguide, the second connection waveguide
The first closed waveguide is coupled by the first MR, similarly, the optical signal in the first communication waveguide can then pass through the 2nd MR and the
One MR is transmitted to detector, and the optical signal in the second communication waveguide can be transmitted to detector by the 3rd MR and the first MR.
It should be noted that the first connection waveguide can be two different waveguides from the second connection waveguide,
Or two sections in same waveguide, or same waveguide.
In the optical-fiber network of wavelength-division multiplex, optical node can also connect circuit structure, and detector can also turn optical signal
It is changed to electric signal, and electric signal is sent to by receiving device by the circuit structure；Communication waveguide for realizing equipment with set
Optical signal transmission between standby, in optical node provided by the present application, optical signal that laser source generates is transferred to the by MR group
One communication waveguide or the second communication waveguide, and the optical signal in the first communication waveguide or the second communication waveguide can also pass through MR group
It is transferred in the detector in optical node, so that detector converts optical signals to electric signal, in this way, realizing optical node to light
The transmitted in both directions of signal improves the utilization rate of resource.
Optical node as shown in connection with fig. 1, referring to shown in Fig. 2, optionally, the MR group further includes the 4th MR103 and the
Five MR105, the 4th MR103 and the 5th MR105 are located in first closed waveguide 115, the 4th MR103
And transmission direction of the 5th MR105 for changing optical signal in first closed waveguide.
The both ends of 4th MR and the 5th MR are connection first closed waveguides, according to the first closure wave
The topological structure led, when optical signal is in entrance first closed waveguide, if after the 4th MR or the 5th MR, institute
Stating direction of the optical signal in first closed waveguide can then change.In optical node provided herein, pass through described
Four MR, the 5th MR and first closed waveguide can change the characteristic in optical signal direction, in conjunction with for connecting laser source
And the first MR of detector can be realized the light in conjunction with the 2nd MR and the 3rd MR for connecting two articles of communication waveguides
Optical signal transmission caused by laser source communicates any end of waveguide to described two in node, also achieves described two and leads to
The optical signal that any end of letter waveguide is transmitted can be transferred to the detector in the optical node.
Wherein, the first communication waveguide 112 includes first port 108 and second port 109；The second communication wave
Leading 113 includes third port 110 and the 4th port 111；Specifically, laser source sends generated optical signal in optical node
Resonant state is in what is passed through required for first port 108, second port 109, third port 110 and the 4th port 111
Output mode of the MR during see Table 1 for details；Detector receives first port 108, second port 109, third port 110 in optical node
And the 4th input pattern during see Table 1 for details of the MR in resonant state that passes through required for the optical signal that sends of port 111.
Table 1
As shown in table 1, it is in resonant state by controlling the first MR101 and the 2nd MR102, so that described
Optical signal transmission caused by laser source 106 is to the first port 108；
It is in resonant state by controlling the first MR101, the 4th MR103 and the 2nd MR102, so that the laser
Optical signal transmission caused by source 106 is to the second port 109；
It is in resonant state by controlling the 2nd MR102, the 4th MR103 and the first MR101, so that from described the
The optical signal transmission that Single port 108 enters is to the detector 107；
It is in resonant state by controlling the 2nd MR102 and the first MR101, so that from the second port 109
The optical signal transmission of entrance is to the detector 107.
It is in resonant state by controlling the first MR101, the 5th MR105 and the 3rd MR104, so that the laser
Optical signal transmission caused by source 106 is to the third port 110；
It is in resonant state by controlling the first MR101 and the 3rd MR104, so that the laser source 106 is produced
Raw optical signal transmission is to the 4th port 111；
It is in resonant state by controlling the 3rd MR104 and the first MR101, so that from the third port 110
The optical signal transmission of entrance is to the detector 107；
It is in resonant state by controlling the 3rd MR104, the 5th MR105 and the first MR101, so that from described the
The optical signal transmission that four ports 111 enter is to the detector 107.
Wherein, control MR is in resonant state or is not at resonant state and can be inputted by the electrical input in optical node
Electric signal is controlled.Specifically, the electrical input can be the integration section of the optical node, the electrical input connection
There are one-to-one relationship, the electrical inputs to pass through defeated to MR by each MR in the MR group, the electrical input and MR
The electric signal for entering high level controls the MR and is in resonant state, controls the MR by the electric signal of input low level and is not at resonance
State.
Optical signal is different from the transmission mode of electric signal, and electric signal is electric current, and electric current finds minimum resistance in the line
Path transmission, and no matter route be bending, straight line or right angle structure, electric current can transmit smoothly, and in line transmission
In the process, very big loss is not will cause.And optical signal is by linear transmission, the medium for transmitting optical signal is typically designed as
Linear type or angle biggish curved shape make the direction of optical signal can when optical signal passes through curvilinear structures by principle of reflection
With conversion, but it will cause certain loss.
Currently, when to the medium designs for transmitting optical signal in optical network system, the engraving transmission optical signal in light path board
Waveguide, waveguide line is two-dimensional structure, and crosspoint interconnects in waveguide line, when optical signal is by crosspoint, although
Most of optical signal will do it linear transmission, but still has a small amount of optical signal and transmit towards two sides, cause certain damage
Consumption.Optical signal will also result in certain loss after carrying out curve transmission, and MR is round or oval structure, and optical signal is from one
When waveguide is switched to another waveguide by MR, loss must be will also result in, in order to guarantee that optical signal can correctly completely
It is transmitted to destination, transmitting terminal need to initiate biggish power transmission optical signal, necessarily will cause the biggish power consumption penalty of system.That
, in an optical node, optical signal is transferred to the process of waveguide or optical signal from waveguide transmission to detector by laser source
In, the quantity in the crosspoint that the quantity and optical signal for the MR that optical signal is passed through are passed through is to cause the weight of optical signal loss
Reason is wanted, that is, the major reason for causing system power dissipation to lose.And in optical node provided herein, such as 1 institute of Fig. 2 and table
Show, which is sending optical signal to when communicating waveguide, and receiving optical signal from communication waveguide, and passed through MR is less, and
The crosspoint of process is also less, so that the loss of optical signal is less, to reduce the power consumption penalty of system transmitting terminal.
Due to MR for optical signal transmission direction conversion characteristic, then can by MR whether be in resonant state into
Row control, the optical signal that laser source is sent is transferred to two ports of any one communication waveguide, but also detection
Device can receive the optical signal that two ports for communicating waveguide by any one are sent, and realize optical node to communication waveguide
Bidirectional optical signal transmission, improves the utilization rate of resource.
Referring to optical node shown in Fig. 2, optionally, the first MR101 be two or more, described second
MR102 is two or more, and the 3rd MR103 is two or more, and the 4th MR104 is two or two
More than, the 5th MR105 is two or more.
In optical node provided herein, the first MR, the 2nd MR, the 3rd MR, the 4th MR in the MR group and
5th MR can be respectively a MR, but since MR can only transmit a kind of optical signal of specific wavelength, so, if the MR group
In the first MR, the 2nd MR, the 3rd MR, the 4th MR and the 5th MR be when being only a MR respectively, in synchronization, the optical node
The optical signal of a specific wavelength can only be transmitted, so that efficiency of transmission is lower.In order to improve the efficiency of transmission of MR, the application is mentioned
In the optical node of confession, the MR on each position can be two or more, and the MR on same position transmits difference respectively
The optical signal of wavelength, the MR on each position can be set to identical quantity, thus it is possible, on the one hand, laser source can then be sent out simultaneously
The optical signal transmission of different wave length is to communicating waveguide out, and detector can also receive the optical signal of different wave length simultaneously, mention
The high efficiency of transmission of optical signal；On the other hand, since the MR of same position is not interfere with each other, then laser source is to a port
While sending optical signal, detector can also receive the optical signal of other ports transmission.For example, referring to shown in Fig. 2 or table 1,
Laser source 106 is sending optical signal to first port by a MR in the MR and the 2nd MR102 in the first MR101
When 108, detector 107 can receive second port 109 simultaneously and pass through another MR and first in the 2nd MR102
The optical signal of another MR transmission in MR101.In this way, realizing the duplex transmission to optical signal, and to the more of optical signal
Road is shared.
In conjunction with the optical node of Fig. 2, referring to shown in Fig. 3, present invention also provides another implementation of optical node 200,
The optical node 200 further includes the second closed waveguide 206, and the MR group further includes the 6th MR201, the 7th MR202 and the 8th
MR204；The first connection waveguide 116 couples second closed waveguide 206 by the 6th MR201, and described second connects
It connects waveguide 206 and second closed waveguide is coupled by the 6th MR201；Second closed waveguide 206 is also by described
7th MR202 couples the third communication waveguide 207, and second closed waveguide 206 also couples institute by the 8th MR204
State fourth communication waveguide 208；So that by the MR group by optical signal transmission caused by the laser source 106 to the third communication
Waveguide 207 or fourth communication waveguide 208, and by the optical signal in the third communication waveguide 207 or fourth communication waveguide 208
It is transmitted to the detector 107.
Wherein, the MR group further includes the 9th MR203 and the tenth MR205；9th MR203 and the described tenth
MR205 is located in second closed waveguide 206, and the 9th MR203 and the tenth MR205 exist for changing optical signal
Transmission direction in second closed waveguide.
Wherein, the 6th MR201 is two or more, and the 7th MR202 is two or more, described
8th MR203 be two or more, the 9th MR204 be two or more, the tenth MR205 be two or
It is more than two.
In another implementation of optical node provided herein, the optical node connection include the first closed waveguide with
And second closed waveguide, it is connected with the first communication waveguide, the second communication waveguide, third communication waveguide and fourth communication waveguide,
In detail as shown in Figure 3, in the optical node, closed waveguide, connection waveguide, laser source, detector and MR group composition and function and
Optical node shown in Fig. 2 is similar, is not repeated herein.One optical node is not limited only to two communication waveguides of connection, such as Fig. 3 institute
Show, which includes that there are two closed waveguides, and each closed waveguide is respectively by two communication waveguides of MR connection, in this way, then
It realizes and sends optical signal to four communication waveguides using a laser source, and receive four communication waves using a detector
The optical signal for leading transmission improves the utilization rate of resource.
It should be noted that Fig. 3 be schematic diagram, not the quantity to closed waveguide in optical node provided by the present application and
The restriction of the quantity for the communication waveguide that can be connected, in optical node provided by the present application, the topological structure of closed waveguide can be into
Stacked combination in row vertical direction, so that multi-unit message waveguide can share a laser source and a detector.This
Apply in the optical node provided, can include the MR group of any number of closed waveguide and respective number, and can connect logical
Believe that waveguide is twice of closed waveguide, it specifically can be depending on practical application request.
In loop network application, multiple optical nodes can be sequentially connected, and optical node provided herein can be applied
In the optical ring network of random capacity.For example, as shown in figure 4, in loop network application, optical node 41, optical node
42, it is connected between optical node 43 and optical node 44 etc. by waveguide 45-48 etc..In this way, by loop network, circular communication
The connection of waveguide and multiple optical nodes realizes the exchange that optical signal is carried out to a plurality of circular communication waveguide, and this loop network
Used optical node can be set according to actual needs connects how many communication waveguides in an optical node, so that this ring network
Optimized design is realized in network communication, improves the utilization rate of Internet resources.
Referring to Figure 5, the application also provides a kind of optical network system of wavelength-division multiplex, the system comprises: it is a plurality of logical
Letter waveguide 501, multiple optical nodes 502 and controller 503, the multiple optical node 502 connect a plurality of communication waveguide
501, the controller 503 connects the optical node 502, wherein the multiple optical node 502 such as Fig. 1 institute into Fig. 3 embodiment
Any one optical node shown, each MR that the controller 503 is used to control in the multiple optical node 502 are in resonance shape
State is not at resonant state.
Specifically, the controller is connected to each MR in the multiple optical node, the controller to MR by sending
Electric signal controls the MR and is in resonant state or is not at resonant state.
In alternatively possible implementation, the multiple optical node integrates the function of the controller, that is, the light section
Point is provided with electrical input, and the electrical input is electrically connected each MR in the multiple optical node, and the electrical input passes through
The MR is controlled to MR input electrical signal to be in resonant state or be not at resonant state.
Micro-resonant cavity (MR) can be using silicon (Silicon-On-Insulator, SOI), the SiN, III-in insulating substrate
V race's material is realized.The advantages of electric light 3-8 decoder based on SOI material is: process aspect is partly led with complementary metal oxide
Body (Complementary Metal Oxide Semiconductor, CMOS) technique be it is compatible, so as to using ready-made
CMOS technology technology so that device volume is small, low in energy consumption, favorable expandability, convenient for integrated with electricity component.
Firstly, SOI refers to that growing one layer on SiO2 insulating layer has certain thickness monocrystalline silicon thin in terms of material
Film, technique are compatible with the widely applied CMOS technology of present microelectronic field.Using silicon waveguide made of SOI material,
Its sandwich layer is Si (refractive index 3.45), and covering is SiO2 (refractive index 1.44), and the refringence of such covering and sandwich layer is very
Greatly, thus the waveguide to the limitation capability of light field force very much its bending radius (can have at present curved based on SOI material with very little
The bending radius of bent waveguide reaches 1.5 microns of report), to make the area very little of device, can make on one chip
Multiple devices out.The bending radius of conventional waveguide device (such as LiNbO3) generally in millimeter even centimetres, greatly occupies
Chip area is typically only capable to put next device on chip piece.
Secondly, based on the micro-resonant cavity of silica-based nanowire waveguide, it is that one kind is vdiverse in function, and performance is excellent in terms of device
More, the integrated optical element being widely studied in recent years.Since the radius of disc waveguide can be as small as 1.5 microns, device junction
Structure is very compact, and device High Density Integration may be implemented, and reduces loss when discrete device coupling, while reducing the encapsulation of device
Cost.
The above, above embodiments are only to illustrate the technical solution of the application, rather than its limitations；Although referring to before
Embodiment is stated the application is described in detail, those skilled in the art should understand that: it still can be to preceding
Technical solution documented by each embodiment is stated to modify or equivalent replacement of some of the technical features；And these
It modifies or replaces, the spirit and scope of each embodiment technical solution of the application that it does not separate the essence of the corresponding technical solution.
Claims (10)
1. a kind of optical node, applied to the optical-fiber network of wavelength-division multiplex, the first communication waveguide of optical node connection and second logical
Believe waveguide, for realizing the transmission for the optical signal for communicating waveguide and the second communication waveguide with described first, feature exists
In the optical node includes:
For generate the laser source of optical signal, the detector for receiving optical signal, first connection waveguide, second connection waveguide,
First closed waveguide and micro-resonant cavity MR group；The MR group includes the first MR, the 2nd MR and the 3rd MR；The laser source with
The first connection waveguide connection, the first connection waveguide couples first closed waveguide by the first MR, described
Detector connect waveguide connection with described second, and the second connection waveguide couples the first closure wave by the first MR
It leads；First closed waveguide also couples the first communication waveguide by the 2nd MR, and first closed waveguide is also logical
Cross the 3rd MR coupling the second communication waveguide；The MR group for by optical signal transmission caused by the laser source extremely
First communication waveguide or the second communication waveguide, the MR group is also used to will be in the first communication waveguide or the second communication waveguide
Optical signal transmission is to the detector.
2. optical node according to claim 1, which is characterized in that the MR group further includes the 4th MR and the 5th MR, institute
The 4th MR and the 5th MR is stated to be located in first closed waveguide, the 4th MR and the 5th MR for changing
Transmission direction of the optical signal in first closed waveguide.
3. optical node according to claim 2, which is characterized in that the first communication waveguide includes first port and the
Two-port netwerk；
It is in resonant state by controlling the first MR and the 2nd MR, so that optical signal caused by the laser source
It is transmitted to the first port；
It is in resonant state by controlling the first MR, the 4th MR and the 2nd MR, so that light caused by the laser source
Signal is transmitted to the second port；
It is in resonant state by controlling the 2nd MR, the 4th MR and the first MR, so that enter from the first port
Optical signal transmission is to the detector；
It is in resonant state by controlling the 2nd MR and the first MR, so that the optical signal entered from the second port passes
Transport to the detector.
4. optical node according to claim 2 or 3, which is characterized in that the second communication waveguide include third port with
And the 4th port；
It is in resonant state by controlling the first MR, the 5th MR and the 3rd MR, so that light caused by the laser source
Signal is transmitted to the third port；
It is in resonant state by controlling the first MR and the 3rd MR, so that optical signal transmission caused by the laser source
To the 4th port；
It is in resonant state by controlling the 3rd MR and the first MR, so that the optical signal entered from the third port passes
Transport to the detector；
It is in resonant state by controlling the 3rd MR, the 5th MR and the first MR, so that enter from the 4th port
Optical signal transmission is to the detector.
5. optical node according to claim 2 or 3, which is characterized in that the first MR is two or more, described
2nd MR is two or more, and the 3rd MR is two or more, and the 4th MR is two or more,
5th MR is two or more.
6. optical node according to claim 1 to 3, which is characterized in that the optical node further includes the second closure
Waveguide, the MR group further include the 6th MR, the 7th MR and the 8th MR；The first connection waveguide is coupled by the 6th MR
Second closed waveguide, the second connection waveguide couple second closed waveguide by the 6th MR；Described second
Closed waveguide also couples third communication waveguide by the 7th MR, and second closed waveguide also passes through the 8th MR coupling
Fourth communication waveguide；The MR group is for by optical signal transmission caused by the laser source to the third communication waveguide or institute
Fourth communication waveguide is stated, the MR group is also used to pass the optical signal in the third communication waveguide or the fourth communication waveguide
Transport to the detector.
7. optical node according to claim 6, which is characterized in that the MR group further includes the 9th MR and the tenth MR；Institute
The 9th MR and the tenth MR is stated to be located in second closed waveguide, the 9th MR and the tenth MR for changing
Transmission direction of the optical signal in second closed waveguide.
8. optical node according to claim 7, which is characterized in that the 6th MR is two or more, described the
Seven MR be two or more, the 8th MR be two or more, the 9th MR be two or more, institute
Stating the tenth MR is two or more.
9. optical node according to claim 1 to 3, which is characterized in that the optical node further includes electric input
End, the electrical input are used for input electrical signal, and each MR that the electric signal is used to control in the MR group is in resonance shape
State is not at resonant state.
10. a kind of optical network system of wavelength-division multiplex, which is characterized in that the system comprises: a plurality of communication waveguide, multiple light sections
Point and controller, the multiple optical node connect a plurality of communication waveguide, and the controller connects the multiple optical node,
Wherein, any one optical node of the multiple optical node as described in claim 1 to 9, the controller is for controlling institute
Each MR in multiple optical nodes is stated to be in resonant state or be not at resonant state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511025707.9A CN106936506B (en) | 2015-12-30 | 2015-12-30 | A kind of optical node and related system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511025707.9A CN106936506B (en) | 2015-12-30 | 2015-12-30 | A kind of optical node and related system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106936506A CN106936506A (en) | 2017-07-07 |
| CN106936506B true CN106936506B (en) | 2019-05-24 |
Family
ID=59442704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511025707.9A Active CN106936506B (en) | 2015-12-30 | 2015-12-30 | A kind of optical node and related system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106936506B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8594471B2 (en) * | 2011-03-30 | 2013-11-26 | Telefonaktiebolaget L M Ericsson (Publ) | Adaptive waveguide optical switching system and method |
| US9164300B2 (en) * | 2012-07-02 | 2015-10-20 | Alcatel Lucent | Reconfigurable optical networks |
| CN102780936B (en) * | 2012-07-17 | 2014-11-12 | 西安电子科技大学 | Optical on-chip network system of non-blocking communication and communication method thereof |
| CN103091784B (en) * | 2013-01-29 | 2014-11-12 | 浙江大学 | Low-loss four-port non-blocking optics router based on micro-ring resonator |
| CN104767584B (en) * | 2014-01-07 | 2018-05-22 | 上海诺基亚贝尔股份有限公司 | A kind of reflective light modulator of optical network unit for TWDM-PON systems |
-
2015
- 2015-12-30 CN CN201511025707.9A patent/CN106936506B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106936506A (en) | 2017-07-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106533993B (en) | Network on mating plate based on five port optical routers | |
| CN102027399B (en) | Optoelectronic switches using on-chip optical waveguides | |
| CN109491010B (en) | Silicon-based integrated optical adjustable delay line based on optical phased array | |
| Ye et al. | A torus-based hierarchical optical-electronic network-on-chip for multiprocessor system-on-chip | |
| CN102281478B (en) | On-chip optical router for hybrid switching | |
| CN103308988B (en) | 4*4 nonblocking optical switching network based on five microring resonators | |
| US10439725B2 (en) | Method and system for an optical connection service interface | |
| CN106375017A (en) | Optical transceiving module based on PAM4 modulation | |
| CN105451103B (en) | Three-dimensional light network-on-chip router communication system and method based on Wavelength Assignment | |
| WO2017016416A1 (en) | Optical interconnection backboard, transmission device and signal scheduling method | |
| CN105847166B (en) | Support the expansible on piece optical router of multiport of multi-casting communication | |
| CN111786911B (en) | Hybrid wireless optical network-on-chip system and multicast routing method thereof | |
| Xie et al. | Performance optimization and evaluation for torus-based optical networks-on-chip | |
| WO2016002922A1 (en) | Space-oam conversion and oam combining/branching device, oam transmission system, and oam-adm network system | |
| CN106772816A (en) | A kind of structure and implementation method of two-forty planar optical waveguide | |
| CN104009941A (en) | Data center rack internal network structure based on arrayed waveguide grating | |
| CN106936506B (en) | A kind of optical node and related system | |
| CN108363146B (en) | Five-port optical router with low insertion loss | |
| WO2023103590A1 (en) | Optical module, ferrule and optical fiber connector | |
| WO2015176314A1 (en) | Communication system and communication method for data centre | |
| WO2019095415A1 (en) | Compact waveguide cross coupler | |
| CN107493136B (en) | A kind of communication protocol conversion device and conversion method | |
| Kisseleff et al. | Cable-Aided Distributed Reconfigurable Intelligent Surface (CRIS): New Paradigm for Wireless Communication Networks | |
| WO2024027714A1 (en) | Optical interconnect, manufacturing method therefor, and chip package | |
| CN113783654B (en) | Airborne optical switching network framework combined with electric switch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201215 Address after: 518000 Baoan District Xin'an street, Shenzhen, Guangdong, No. 625, No. 625, Nuo platinum Plaza, Patentee after: SHENZHEN SHANGGE INTELLECTUAL PROPERTY SERVICE Co.,Ltd. Address before: 518129 Bantian HUAWEI headquarters office building, Longgang District, Guangdong, Shenzhen Patentee before: HUAWEI TECHNOLOGIES Co.,Ltd. Effective date of registration: 20201215 Address after: No.003 Changzhou Road, North Industrial Park, Liuji Town, Shuyang County, Suqian City, Jiangsu Province 223600 Patentee after: Luo Sanjie Address before: 518000 Baoan District Xin'an street, Shenzhen, Guangdong, No. 625, No. 625, Nuo platinum Plaza, Patentee before: SHENZHEN SHANGGE INTELLECTUAL PROPERTY SERVICE Co.,Ltd. |
|
| TR01 | Transfer of patent right |