CN107911761B - The clog-free on piece optical router of fault tolerant - Google Patents
The clog-free on piece optical router of fault tolerant Download PDFInfo
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- CN107911761B CN107911761B CN201710589127.5A CN201710589127A CN107911761B CN 107911761 B CN107911761 B CN 107911761B CN 201710589127 A CN201710589127 A CN 201710589127A CN 107911761 B CN107911761 B CN 107911761B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0005—Switch and router aspects
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
- G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
- G02B6/29331—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating by evanescent wave coupling
- G02B6/29335—Evanescent coupling to a resonator cavity, i.e. between a waveguide mode and a resonant mode of the cavity
- G02B6/29338—Loop resonators
- G02B6/2934—Fibre ring resonators, e.g. fibre coils
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- 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
- H04B10/03—Arrangements for fault recovery
- H04B10/038—Arrangements for fault recovery using bypasses
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/22—Alternate routing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/10—Packet switching elements characterised by the switching fabric construction
- H04L49/109—Integrated on microchip, e.g. switch-on-chip
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0005—Switch and router aspects
- H04Q2011/0007—Construction
Abstract
The invention discloses a kind of clog-free on piece optical router of fault tolerant, mainly solve the problems, such as in existing network on mating plate since certain micro-ring resonator failures cause communication that can not carry out.It includes 5 input ports, 5 output ports, 11 one optical waveguides and 34 micro-ring resonators；Every one optical waveguide is connect with input, output port respectively, forms multiple waveguide crosspoints, these micro-ring resonators are separately positioned on waveguide intersection, the middle of parallel waveguide and input, output port.By building for optical waveguide and micro-ring resonator, realizes three kinds of communication modes, be respectively: directly passing through optical waveguide communication；Using micro-ring resonator in directapath coupled communication；Using micro-ring resonator in backup path coupled communication.The present invention can be enabled backup path and restore communication, and then enhance network-on-chip optical router fault-tolerant ability, can be used for the node interconnection of network on mating plate by backup path when the micro-ring resonator in directapath damages.
Description
Technical field
The invention belongs to field of communication technology, in particular to a kind of clog-free on piece optical router can be used for mating plate online
The node interconnection of network.
Background technique
In existing network on mating plate, when micro-ring resonator breaks down, path can be recalculated, it is not intended that
Optical router containing faulty micro-ring resonator.But in fact failure often occurs over just on a small number of micro-ring resonators.In network
Level, due to certain micro-ring resonators functional fault and abandon entire optical router, will lead to the unnecessary of hop count
Growth and the wasting of resources.Therefore, reliable optical router increasingly becomes the most important thing of the communications field on mating plate, for optical path
It is required by the error resilience performance of device higher and higher.
Patent " the clog-free optics routing in five ports based on micro-ring resonator of Institute of Semiconductors,Academia Sinica's application
Device " discloses in (applying date: on May 9th, 2012, application number: CN201210142673.1, publication number: CN102645706A)
A kind of five multi-port optical routers based on micro-ring resonator.The embodiment of the optical router is: having using 15 identical
The micro-ring resonator of structure size, by the switching at runtime of two states, realizes five ports of optical router as photoswitch
Clog-free communication.Shortcoming existing for the optical router is: in addition to 5 communication directions can directly pass through wave guide communication,
Remaininging to interconnect between 15 communication directions only just can be carried out by micro-ring resonator, once some micro-ring resonator is broken, in router
It will can not continue to communicate there are two direction, entire router can be abandoned when calculating restoration path, reduce router
Utilization rate, network reliability are low.
Patent " the non-obstruction optical router in four port of low-loss based on the micro-ring resonator " (application of Zhejiang University's application
Day: on January 29th, 2013, application number: CN201310039839.1, publication number: CN103091784A) in disclose one kind and be based on
The non-obstruction optical router in four port of low-loss of micro-ring resonator.The embodiment of the optical router is: utilizing micro-ring resonant
Device and waveguide construct one 4 × 4 non-blocking optical router, pass through crossing waveguide micro-ring resonator and parallel waveguide micro-ring resonant
The combined use of device reduces crossing waveguide number in router, reduces loss and crosstalk.System disclosed in the patented technology is deposited
Shortcoming be: when the damage of some common micro-loop, will can not be communicated there are two direction in system, when utilization rate height
The 7th micro-ring resonator damage when, Two-port netwerk to Single port, four ports to three ports can not communicate, the performance meeting of router
It is serious to reduce, while also reducing network reliability.
Summary of the invention
It is an object of the invention to be directed to the deficiency of above-mentioned prior art, a kind of clog-free on piece optical path of fault tolerant is proposed
Router utilization is improved to guarantee communication reliability by device, promotes network performance.
Concrete thought of the invention is: the clog-free on piece optical path of fault tolerant is built using waveguide and active micro-ring resonator
By device, is required to open and close micro-ring resonator according to switching by control unit, carry out micro-ring resonator open state, off status
Mutual conversion, realization be selectively adjusted optical signal path.Since micro-ring resonator probability of damage is big, the probability of waveguide damage
It is minimum, therefore directly connected in as many different directions as possible by waveguide, the number of micro-ring resonator is reduced, these directions are improved
On communication reliability, remaining side upwardly through the mode for establishing backup path, reach even if a certain micro-ring resonator damage, road
It can also restore the effect of communication by backup path by device.
According to above-mentioned thinking, the clog-free on piece optical router of fault tolerant of the invention include 5 input ports, 5 it is defeated
Exit port, 11 one optical waveguides and 34 micro-ring resonators；Every one optical waveguide is connect with input, output port respectively, is formed multiple
Waveguide crosspoint；These micro-ring resonators are separately positioned on waveguide intersection, the middle of parallel waveguide and input, output end
Mouthful.
As preferential, each waveguide and the connection relationship of each input/output port are as follows:
The first input left port (X10) of first wave guide (W1) connection and third output upper port (Y30)；
The first input right output port (X11) of second waveguide (W2) connection and the 5th output lower port (Y51)；
The second input right output port (X21) of third waveguide (W3) connection and the 5th output upper port (Y50), and and first wave guide
(W1) intersect, formed the first crosspoint (C1)；
The second input left port (X20) of 4th waveguide (W4) connection and the 4th exports right output port (Y41), and respectively with first
Waveguide (W1) and third waveguide (W3) intersect, and are formed the second crosspoint (C2) and third crosspoint (C3)；
5th waveguide (W5) connects third input upper port (X30) and the 12nd micro-ring resonator (M12), and and first wave
(W1) intersection is led, the 4th crosspoint (C4) is formed；
6th waveguide (W6) connects third input lower port (X31) and the first output right output port (Y10), and and second waveguide
(W2) intersect, form the 5th crosspoint (C5)；
7th waveguide (W7) connection the 5th input upper port (X50) and the 4th export left port (Y40), and respectively with it is other
Multiple waveguides intersect to form multiple crosspoints: intersecting with first wave guide (W1), form the 6th crosspoint (C6) and the 7th and intersect
Point (C7)；Intersect with third waveguide (W3), forms the 8th crosspoint (C8)；Intersect with the 4th waveguide (W4), forms the 9th and intersect
Point (C9) and the tenth crosspoint (C10)；Intersect with the 5th waveguide (W5), forms the 11st crosspoint (C11)；
8th waveguide (W8) connection the 5th input lower port (X51) and second export right output port (Y21), and respectively with it is other
Multiple waveguides intersect to form multiple crosspoints: intersecting with second waveguide (W2), form the 12nd crosspoint (C12) and the 13rd
Crosspoint (C13)；Intersect with the 6th waveguide (W6), forms the 14th crosspoint (C14)；
9th waveguide (W9) connection the 4th input left port (X40) and first export left port (Y10), and respectively with it is other
Multiple waveguides intersect to form multiple crosspoints: intersecting with first wave guide (W1), form the 15th crosspoint (C15) and the 16th and hand over
Crunode (C16)；Intersect with third waveguide (W3), forms the 17th crosspoint (C17) and the 18th crosspoint (C18)；
The 4th input right output port (X41) of tenth waveguide (W10) connection and the second output left port (Y20), and and first wave
It leads (W1) and the 9th waveguide (W9) intersects, be respectively formed the 19th crosspoint (C19) and the 20th crosspoint (C20)；
11st waveguide (W11) connects the tenth micro-ring resonator (M10) and third output lower port (Y3).
As preferential, the positional relationship of each micro-ring resonator is provided that
The parallel place in the tenth waveguide (W10) between third waveguide (W3) is arranged in first micro-ring resonator (M1)；
Second micro-ring resonator (M2) is arranged in the lower left corner in the 18th crosspoint (C18)；
The parallel place that third micro-ring resonator (M3) is arranged between the 9th waveguide (W9) and the 4th waveguide (W4)；
4th micro-ring resonator (M4) is arranged in the upper right corner in the 17th crosspoint (C17)；
5th micro-ring resonator (M5) is arranged in the lower left corner in the 19th crosspoint (C19)；
The parallel place that 6th micro-ring resonator (M6) is arranged between the 9th waveguide (W9) and first wave guide (W1)；
The parallel place that 7th micro-ring resonator (M7) is arranged between the 4th waveguide (W4) and first wave guide (W1)；
8th micro-ring resonator (M8) is arranged in the lower right corner of the first crosspoint (C1)；
The parallel place that 9th micro-ring resonator (M9) is arranged between the 7th waveguide (W7) and first wave guide (W1)；
The parallel place that tenth micro-ring resonator (M10) is arranged between the 11st waveguide (W11) and the 8th waveguide (W8)；
The parallel place that 11st micro-ring resonator (M11) is arranged between the 6th waveguide (W6) and second waveguide (W2)；
The parallel place that 12nd micro-ring resonator (M12) is arranged between the 5th waveguide (W5) and third waveguide (W3)；
The parallel place that 13rd micro-ring resonator (M13) is arranged between the 8th waveguide (W8) and the 6th waveguide (W6)；
The parallel place that 14th micro-ring resonator (M14) is arranged between the 9th waveguide (W9) and the 7th waveguide (W7)；
15th to the 34th micro-ring resonator (M15-M34) is separately positioned on 5 input ports and 5 output ports
In, i.e., 2 micro-ring resonators are placed in each input, output port, and each micro-ring resonator is located at two of port
Between parallel waveguide.
The present invention has the advantage that compared with existing system
First, the present invention is stringent non-blocking optical router, using building for waveguide and active micro-ring resonator, is constructed
The optical router of strictly non-blocking is gone out, stringent clog-free router means when any two port communication, remaining institute
There is any the two communication between port to be all unaffected, overcoming tradition has obstruction router communication low efficiency, network performance
Limited problem, while network delay is reduced, it improves resource utilization.
Second, the present invention utilizes waveguide and active micro-ring resonator, provides backup path on certain communication directions, when
When micro-ring resonator damages in directapath, backup path work is enabled, simultaneously because placing two in input, output port
Micro-ring resonator carrys out work so that another can be used when being broken for one, overcomes in conventional router when a certain
When micro-ring resonator damages, the problem of entire router will all fail, the utilization efficiency of router is improved, network is improved
Error resilience performance.
Detailed description of the invention
Fig. 1 is planar structure schematic diagram of the invention；
Fig. 2 is basic light crosspoint structural schematic diagram in the present invention；
Fig. 3 is the 4th input, output port schematic diagram of internal structure in the present invention；
Spare micro-ring resonant is used when Fig. 4 is the 4th input in the present invention, default micro-ring resonator damages in output port
Device schematic diagram；
Fig. 5 is in the present invention using optical waveguide direct communication schematic diagram；
Fig. 6 is that the 4th sending port X4 to the 5th receiving port Y5 uses directapath communication scheme in the present invention；
Fig. 7 is that the 4th sending port X4 to the 5th receiving port Y5 uses backup path communication scheme in the present invention.
Specific embodiment
The present invention is described in further detail with specific example with reference to the accompanying drawing.
Referring to Fig.1, the clog-free on piece optical router of fault tolerant of the present invention include 5 input ports, 5 output ports,
11 one optical waveguides and 34 micro-ring resonators；Every one optical waveguide is connect with input, output port respectively, is formed multiple waveguides and is intersected
Point；These micro-ring resonators are separately positioned on waveguide intersection, the middle of parallel waveguide and input, output port.Wherein
Each waveguide and the connection relationship of each input/output port are as follows:
First wave guide W1 connection first inputs left port X10 and third exports upper port Y30；
Second waveguide W2 connection first inputs the output of right output port X11 and the 5th lower port Y51；
Third waveguide W3 connection second inputs the output upper port Y50 of right output port X21 and the 5th, and hands over first wave guide W1
Fork forms the first crosspoint C1；
4th waveguide W4 connection second input left port X20 and the 4th output right output port Y41, and respectively with first wave guide W1
Intersect with third waveguide W3, forms the second crosspoint C2 and third crosspoint C3；
5th waveguide W5 connection third inputs upper port X30 and the 12nd micro-ring resonator M12, and hands over first wave guide W1
Fork forms the 4th crosspoint C4；
6th waveguide W6 connection third inputs the output right output port Y10 of lower port X31 and first, and hands over second waveguide W2
Fork forms the 5th crosspoint C5；
7th waveguide W7 connection the 5th input upper port X50 and the 4th output left port Y40, and respectively with other multiple waves
It leads and intersects to form multiple crosspoints, is i.e. the 7th waveguide W7 and first wave guide W1 intersects, and forms the 6th crosspoint C6 and the 7th and intersects
Point C7；7th waveguide W7 intersects with third waveguide W3, forms the 8th crosspoint C8；7th waveguide W7 and the 4th waveguide W4 intersects,
Form the 9th crosspoint C9 and the tenth crosspoint C10；7th waveguide W7 and the 5th waveguide W5 intersects, and forms the 11st crosspoint
C11；
8th waveguide W8 connection the 5th input lower port X51 and second output right output port Y21, and respectively with other multiple waves
It leads and intersects to form multiple crosspoints, is i.e. the 8th waveguide W8 and second waveguide W2 intersects, and forms the 12nd crosspoint C12 and the 13rd
Crosspoint C13；8th waveguide W8 and the 6th waveguide W6 intersects, and forms the 14th crosspoint C14；
9th waveguide W9 connection the 4th input left port X40 and first output left port Y10, and respectively with other multiple waves
It leads and intersects to form multiple crosspoints, is i.e. the 9th waveguide W9 and first wave guide W1 intersects, and forms the 15th crosspoint C15 and the 16th
Crosspoint C16；9th waveguide W9 intersects with third waveguide W3, forms the 17th crosspoint C17 and the 18th crosspoint C18；
Tenth waveguide W10 connection the 4th input right output port X41 and second output left port Y20, and with first wave guide W1 and
9th waveguide W9 intersects, and is respectively formed the 19th crosspoint C19 and the 20th crosspoint C20；
The tenth micro-ring resonator M10 of 11st waveguide W11 connection and third export lower port Y31.
Above-mentioned each optical waveguide is curved waveguide, for realizing the transmission of on piece optical signal.
Micro-ring resonator, each micro-ring resonator are provided in the structure that is formed connecting above by waveguide with port
Positional relationship be provided that
Parallel place of the tenth waveguide W10 between third waveguide W3 is arranged in first micro-ring resonator M1；
The lower left corner of the 18th crosspoint C18 is arranged in second micro-ring resonator M2；
The parallel place between the 9th waveguide W9 and the 4th waveguide W4 is arranged in third micro-ring resonator M3；
The upper right corner of the 17th crosspoint C17 is arranged in 4th micro-ring resonator M4；
The lower left corner of the 19th crosspoint C19 is arranged in 5th micro-ring resonator M5；
The parallel place between the 9th waveguide W9 and first wave guide W1 is arranged in 6th micro-ring resonator M6；
The parallel place between the 4th waveguide W4 and first wave guide W1 is arranged in 7th micro-ring resonator M7；
The lower right corner of the first crosspoint C1 is arranged in 8th micro-ring resonator M8；
The parallel place between the 7th waveguide W7 and first wave guide W1 is arranged in 9th micro-ring resonator M9；
The parallel place between the 11st waveguide W11 and the 8th waveguide W8 is arranged in tenth micro-ring resonator M10；
The parallel place between the 6th waveguide W6 and second waveguide W2 is arranged in 11st micro-ring resonator M11；
The parallel place between the 5th waveguide W5 and third waveguide W3 is arranged in 12nd micro-ring resonator M12；
The parallel place between the 8th waveguide W8 and the 6th waveguide W6 is arranged in 13rd micro-ring resonator M13；
The parallel place between the 9th waveguide W9 and the 7th waveguide W7 is arranged in 14th micro-ring resonator M14；
15th to the 34th micro-ring resonator M15-M34 is separately positioned on 5 input ports and 5 output ports
In, i.e., 2 micro-ring resonators are placed in each input, output port, and each micro-ring resonator is located at two of port
Between parallel waveguide.
The diameter and resonance wave appearance of above-mentioned each micro-ring resonator are same, and resonance wavelength is equal to the operating wave of optical router
It is long, for realizing the steering of on piece optical signal.
This router is routed using XY routing algorithm, i.e., the grouping injected in a network road in the horizontal direction first
By until reaching its final position in the horizontal direction；Then, continue to transmit in the vertical direction, until grouping reaches mesh
Ground.In this router, forbid 4 kinds of communication paths, these four forbid communication path to be respectively as follows:
Forbid the communication from first input port X1 to second output terminal mouth Y2；
Forbid the communication from first input port X1 to the 4th output port Y4；
Forbid the communication from third input port X3 to second output terminal mouth Y2；
Forbid the communication from third input port X3 to the 4th output port Y4.
Router of the present invention after forbidding 4 kinds of above-mentioned communication direction paths, then using remaining 16 kinds of communication directions into
Walking along the street by.In this 16 kinds of communication directions, 9 kinds of communication directions are directly connected by optical waveguide in router interior, and failure rate is low；
Remaining 7 kinds of communication directions, which need to couple by micro-ring resonator, reaches destination port.Wherein:
Include: by 9 kinds of paths that optical waveguide is connected directly communication
From the first input left port X10 to the communication of third output upper port Y30；
The communication of lower port Y51 is exported from the first input right output port X11 to the 5th；
The communication of right output port Y41 is exported from the second input left port X20 to the 4th；
The communication of upper port Y50 is exported from the second input right output port X21 to the 5th；
The communication of right output port Y11 is exported from third input lower port X31 to first；
The communication of left port Y20 is exported from third input upper port X30 to second；
The communication of right output port Y11 is exported from the 4th input left port X40 to first；
The communication of right output port Y11 is exported from the 5th input lower port X51 to first；
The communication of left port Y40 is exported from the 5th input upper port X50 to the 4th.
It needs to communicate by micro-ring resonator coupling optical waveguide on remaining 7 kinds of directions, establishes two in those directions
Path, i.e. directapath and backup path, router is preferentially communicated using directapath when working normally, when in directapath
It is communicated when micro-ring resonator damages using backup path, therefore has 7 directapaths and 7 backup paths, totally 14 paths, often
It needs to need 14 micro-ring resonators altogether using 1 micro-ring resonator on paths.
7 directapaths and its need micro-ring resonator coupled relation to be used are as follows:
The communication that second input left port X20 to first exports left port Y10 is coupled using third micro-ring resonator M3；
The communication of second input left port X20 to third output upper port Y30 are coupled using the 7th micro-ring resonator M7；
The communication that 4th input left port X40 to the 5th exports upper port Y50 is coupled using the second micro-ring resonator M2；
The communication of 4th input left port X40 to third output upper port Y30 are coupled using the 6th micro-ring resonator M6；
The communication of 5th input lower port X51 to third output lower port Y31 are coupled using the tenth micro-ring resonator M10；
The communication that 5th input lower port X51 to first exports right output port Y11 uses the 13rd micro-ring resonator M13 coupling
It closes；
The communication that third inputs the output of lower port X31 to the 5th lower port Y51 uses the 11st micro-ring resonator M11 coupling
It closes.
7 backup paths and its need micro-ring resonator coupled relation to be used are as follows:
The communication that second input right output port X21 to first exports left port Y10 is coupled using the 4th micro-ring resonator M4；
The communication of second input right output port X21 to third output upper port Y30 are coupled using the 8th micro-ring resonator M8；
The communication that 4th input right output port X41 to the 5th exports upper port Y50 is coupled using the first micro-ring resonator M1；
The communication of 4th input right output port X41 to third output upper port Y30 are coupled using the 5th micro-ring resonator M5；
The communication of 5th input upper port X50 to third output upper port Y30 are coupled using the 9th micro-ring resonator M9；
The communication that 5th input upper port X50 to first exports left port Y10 uses the 14th micro-ring resonator M14 coupling
It closes；
The communication that third inputs the output of upper port X30 to the 5th upper port Y50 uses the 12nd micro-ring resonator M12 coupling
It closes.
Referring to Fig. 2, the basic light crosspoint of this example is basic 1x2 switch element, is divided into following two classification: one
It is parallel switching element, as shown in Figure 2 a；Second is that crossbar element, as shown in Figure 2 b.Both switch elements are by two
Waveguide and a micro-ring resonator composition.Control unit requires to open and close micro-ring resonator according to switching.Upon closing, micro-
When ring resonator is in off state, resonance wavelength is off state resonant wavelength, and incident optical signal will be inputted from input port,
The transmission direction of optical signal does not change, and exports from off status outbound course.When micro-ring resonator is in the conductive state, resonance wave
Long to become on state resonant wavelength, incident optical signal will be coupled in micro-ring resonator from input port and export from open state
Direction output.
Referring to Fig. 3, the 4th input, output port internal structure in this example, in which:
The internal structure of 4th input port X4, You Lianggen parallel waveguide and two micro-ring resonators are constituted, this two waves
It leads and is placed in parallel, two micro-ring resonators are respectively a default micro-ring resonator D and a spare micro-ring resonator R, this two
A micro-ring resonator is placed on the parallel middle of two waveguides, other input ports are similar, as shown in Figure 3a；
The internal structure of 4th output port Y4, You Lianggen parallel waveguide and two micro-ring resonators are constituted, this two waves
It leads and is placed in parallel, two micro-ring resonators are respectively a default micro-ring resonator D and a spare micro-ring resonator R, this two
A micro-ring resonator is placed on the parallel middle of two waveguides, other input ports are similar, as shown in Figure 3b.
Referring to Fig. 4, spare micro-ring resonant is used when default micro-ring resonator D damage in the input of this example, output port
The working method of device R, in which:
When defaulting micro-ring resonator D damage in the 4th input port X4, the data that input port is inputted into router are logical
Spare micro-ring resonator R coupled transfer is crossed, as shown in fig. 4 a；
When 4th output port Y4 defaults micro-ring resonator D damage, the data that output port is exported from router pass through
Spare micro-ring resonator R coupled transfer, as shown in Figure 4 b.
Referring to Fig. 5, this example, which is illustrated from the 4th input output of left port X40 to first left port Y10, directly passes through wave
The communication path for leading W9 uses optical waveguide direct communication, and the communication between two ports only passes through waveguide transmission at this time, without making
It is coupled with micro-ring resonator, failure rate is low.
Referring to Fig. 6, illustrate in this example from the communication path the 4th sending port X4 to the 5th receiving port Y5,
It couples optical signal by micro-ring resonator and communicates from directapath, and wherein directapath is from the 4th input left port X40
To the 5th output upper port Y50, the second micro-ring resonator M2 coupled transfer is used.
Referring to Fig. 7, the 4th input port X4 to the 5th output port Y5 is illustrated in this example using the logical of backup path
Letter, communication means is to couple optical signal by micro-ring resonator to communicate from backup path, when the micro-ring resonant in directapath
When device M2 is damaged, it is the communication for exporting upper port Y50 from the 4th input right output port X41 to the 5th using backup path, uses the
One micro-ring resonator M1 coupled transfer.
Above description is only example of the present invention, does not constitute any limitation of the invention, it is clear that for this
It, all may be without departing substantially from the principle of the invention, structure after having understood the content of present invention and principle for the professional in field
In the case of, various modifications and variations in form and details are carried out, but these modifications and variations based on inventive concept are still
Within the scope of the claims of the present invention.
Claims (3)
1. a kind of clog-free on piece optical router of fault tolerant, it is characterised in that: including 5 input ports, 5 output ports,
11 one optical waveguides and 34 micro-ring resonators；Every one optical waveguide is connect with input, output port respectively, is formed multiple waveguides and is intersected
Point；These micro-ring resonators are separately positioned on waveguide intersection, the middle of parallel waveguide and input, output port；
Each waveguide and the connection relationship of each input/output terminal are as follows:
The first input left port (X10) of first wave guide (W1) connection and third output upper port (Y30)；
The first input right output port (X11) of second waveguide (W2) connection and the 5th output lower port (Y51)；
Third waveguide (W3) connection second input right output port (X21) and the 5th export upper port (Y50), and with first wave guide (W1)
Intersect, is formed the first crosspoint (C1)；
4th waveguide (W4) connection second input left port (X20) and the 4th export right output port (Y41), and respectively with first wave guide
(W1) intersect with third waveguide (W3), formed the second crosspoint (C2) and third crosspoint (C3)；
5th waveguide (W5) connects third input upper port (X30) and the 12nd micro-ring resonator (M12), and and first wave guide
(W1) intersect, form the 4th crosspoint (C4)；
6th waveguide (W6) connect third input lower port (X31) and first export right output port (Y10), and with second waveguide (W2)
Intersect, forms the 5th crosspoint (C5)；
7th waveguide (W7) connection the 5th input upper port (X50) and the 4th export left port (Y40), and respectively with it is other multiple
Waveguide intersects to form multiple crosspoints: intersecting with first wave guide (W1), forms the 6th crosspoint (C6) and the 7th crosspoint
(C7)；Intersect with third waveguide (W3), forms the 8th crosspoint (C8)；Intersect with the 4th waveguide (W4), forms the 9th crosspoint
(C9) and the tenth crosspoint (C10)；Intersect with the 5th waveguide (W5), forms the 11st crosspoint (C11)；
8th waveguide (W8) connection the 5th input lower port (X51) and second export right output port (Y21), and respectively with it is other multiple
Waveguide intersects to form multiple crosspoints: intersecting with second waveguide (W2), forms the 12nd crosspoint (C12) and the 13rd and intersect
Point (C13)；Intersect with the 6th waveguide (W6), forms the 14th crosspoint (C14)；
9th waveguide (W9) connection the 4th input left port (X40) and first export left port (Y10), and respectively with it is other multiple
Waveguide intersects to form multiple crosspoints: intersecting with first wave guide (W1), forms the 15th crosspoint (C15) and the 16th crosspoint
(C16)；Intersect with third waveguide (W3), forms the 17th crosspoint (C17) and the 18th crosspoint (C18)；
The 4th input right output port (X41) of tenth waveguide (W10) connection and the second output left port (Y20), and and first wave guide
(W1) intersect with the 9th waveguide (W9), be respectively formed the 19th crosspoint (C19) and the 20th crosspoint (C20)；
11st waveguide (W11) connects the tenth micro-ring resonator (M10) and third output lower port (Y3)；
The positional relationship of each micro-ring resonator is provided that
The parallel place in the tenth waveguide (W10) between third waveguide (W3) is arranged in first micro-ring resonator (M1)；
Second micro-ring resonator (M2) is arranged in the lower left corner in the 18th crosspoint (C18)；
The parallel place that third micro-ring resonator (M3) is arranged between the 9th waveguide (W9) and the 4th waveguide (W4)；
4th micro-ring resonator (M4) is arranged in the upper right corner in the 17th crosspoint (C17)；
5th micro-ring resonator (M5) is arranged in the lower left corner in the 19th crosspoint (C19)；
The parallel place that 6th micro-ring resonator (M6) is arranged between the 9th waveguide (W9) and first wave guide (W1)；
The parallel place that 7th micro-ring resonator (M7) is arranged between the 4th waveguide (W4) and first wave guide (W1)；
8th micro-ring resonator (M8) is arranged in the lower right corner of the first crosspoint (C1)；
The parallel place that 9th micro-ring resonator (M9) is arranged between the 7th waveguide (W7) and first wave guide (W1)；
The parallel place that tenth micro-ring resonator (M10) is arranged between the 11st waveguide (W11) and the 8th waveguide (W8)；
The parallel place that 11st micro-ring resonator (M11) is arranged between the 6th waveguide (W6) and second waveguide (W2)；
The parallel place that 12nd micro-ring resonator (M12) is arranged between the 5th waveguide (W5) and third waveguide (W3)；
The parallel place that 13rd micro-ring resonator (M13) is arranged between the 8th waveguide (W8) and the 6th waveguide (W6)；
The parallel place that 14th micro-ring resonator (M14) is arranged between the 9th waveguide (W9) and the 7th waveguide (W7)；
15th to the 34th micro-ring resonator (M15-M34) is separately positioned in 5 input ports and 5 output ports,
2 micro-ring resonators are placed in each input, output port, and each micro-ring resonator is located at two parallel waves of port
Between leading.
2. the clog-free on piece optical router of fault tolerant according to claim 1, wherein the diameter of each micro-ring resonator
It is same with resonance wave appearance, and resonance wavelength is equal to the operation wavelength of optical router, for realizing the steering of on piece optical signal.
3. the clog-free on piece optical router of fault tolerant according to claim 1, wherein each optical waveguide is bending wave
It leads, for realizing the transmission of on piece optical signal.
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