CN116016333A - Four-port multimode router and link switching network - Google Patents
Four-port multimode router and link switching network Download PDFInfo
- Publication number
- CN116016333A CN116016333A CN202211696485.3A CN202211696485A CN116016333A CN 116016333 A CN116016333 A CN 116016333A CN 202211696485 A CN202211696485 A CN 202211696485A CN 116016333 A CN116016333 A CN 116016333A
- Authority
- CN
- China
- Prior art keywords
- mode
- input
- output
- multimode
- waveguides
- 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.)
- Pending
Links
Images
Landscapes
- Optical Integrated Circuits (AREA)
Abstract
The present disclosure provides a four-port multimode router and a link switching network, the four-port multimode router comprising four multimode input waveguides; four mode demultiplexers adapted to convert the multimode multiplexed signal into N single mode signals, where N is a positive integer; four single-mode input waveguide groups, each single-mode input waveguide group comprising N single-mode input waveguides, the N single-mode input waveguide inputs being connected to N outputs of a mode demultiplexer; the same input end of the N4 multiplied by 4 single-mode optical routing units is connected with N single-mode waveguide output ends of a single-mode input waveguide group; each single-mode output waveguide group comprises N single-mode output waveguides, and the input ends of the N single-mode output waveguides are respectively connected with the same output end of each 4X 4 single-mode optical routing unit; four mode multiplexers, each mode multiplexer input end connects the output end of N single-mode output waveguides of a single-mode output waveguide group; four multimode output waveguides.
Description
Technical Field
The present disclosure relates to the field of integrated optical and optical interconnects, and more particularly to a four-port multimode router and link switching network.
Background
With the increase of the communication capacity demand, the technologies such as wavelength division multiplexing and the like cannot meet the demand, and more degrees of freedom such as the mode division multiplexing technology is paid attention to. The mode division multiplexing technology utilizes a plurality of spatial modes carrying information to be transmitted in parallel in a unified physical carrier, and has good application prospect in further application of increasing communication capacity. Conventional routers typically support only a single communication channel or a channel for wavelength division multiplexing, and thus, the communication capacity is relatively limited, and further improvement of the communication capacity is a hot spot of research.
Disclosure of Invention
In view of the foregoing, embodiments of the present disclosure provide a four-port multimode router and a link switching network.
In one aspect of the present disclosure, there is provided a four-port multimode router including:
four multimode input waveguides;
four mode demultiplexers, the input end of each of the mode demultiplexers is connected to one of the multimode input waveguides, the mode demultiplexers are adapted to convert the received multimode multiplexed signal into N single-mode signals, where N is a positive integer;
four single-mode input waveguide groups, each of which comprises N single-mode input waveguides, the input ends of the N single-mode input waveguides being connected with N output ends of one of the mode demultiplexers;
the same input ends of the N4X 4 single-mode optical routing units are connected with N single-mode waveguide output ends of one single-mode input waveguide group, and the 4X 4 single-mode optical routing units receive the single-mode signals;
four single-mode output waveguide groups, wherein each single-mode output waveguide group comprises N single-mode output waveguides, and the input ends of the N single-mode output waveguides are respectively connected with the same output end of each 4X 4 single-mode optical routing unit;
four mode multiplexers, the input end of each mode multiplexer is connected with the output ends of N single-mode output waveguides of a single-mode output waveguide group, and the mode multiplexer is suitable for converting the received N single-mode signals into multimode multiplexing signals;
and the input ends of the multimode output waveguides are connected with the output end of the mode multiplexer.
According to an embodiment of the present disclosure, the 4×4 single-mode optical routing unit is a ring-shaped routing structure composed of four 2×2 optical switches; the four 2 x 2 optical switches include:
a first 2 x 2 optical switch having a first input adapted to receive one of said N single-mode signals converted by said second mode demultiplexer; a second input of said first 2 x 2 optical switch is adapted to receive one of said N single-mode signals converted by said third mode demultiplexer;
a second 2 x 2 optical switch having a first input adapted to receive one of said N single-mode signals converted by said first mode demultiplexer; the second input end of the second 2 x 2 optical switch is suitable for being connected with the first output end of the first 2 x 2 optical switch; a first output of the second 2 x 2 optical switch is adapted to be connected to the fourth mode multiplexer;
a third 2 x 2 optical switch, the first input terminal being adapted to connect to the second output terminal of the first 2 x 2 optical switch; a second input of said third 2 x 2 optical switch is adapted to receive one of said N single-mode signals converted by said fourth mode demultiplexer; a second output of the second 2 x 2 optical switch is adapted to connect to the first mode multiplexer;
a fourth 2 x 2 optical switch, the first input terminal being adapted to connect to a second output terminal of said second 2 x 2 optical switch; the second input end of the fourth 2 x 2 optical switch is suitable for being connected with the first output end of the third 2 x 2 optical switch; a first output of the fourth 2 x 2 optical switch is adapted to be connected to the third mode multiplexer; a second output of the fourth 2 x 2 optical switch is adapted to be connected to the second mode multiplexer.
According to an embodiment of the disclosure, the ith single-mode input waveguide group includes N ith single-mode input waveguides, input ends of the N ith single-mode input waveguides are respectively connected to N output ends of the ith mode demultiplexer, and output ends of the N ith single-mode input waveguides are respectively connected to i input ends of the N4×4 single-mode optical routing units.
According to an embodiment of the disclosure, the ith single-mode output waveguide group includes N ith single-mode output waveguides, output ends of the N ith single-mode output waveguides are respectively connected with N input ends of the first mode multiplexer, and input ends of the N ith single-mode output waveguides are respectively connected with i output ends of the N4×4 single-mode optical routing units; wherein i is more than or equal to 4 and less than or equal to 1, and i is an integer.
According to an embodiment of the present disclosure, the 2×2 optical switching units are switched between a pass-through state and a cross state according to a control signal, and the 2×2 single-mode optical switching units of the N4×4 single-mode optical routing units are simultaneously in the pass-through state or the cross state, so that the N4×4 single-mode optical routing units are simultaneously in the same routing state.
According to an embodiment of the present disclosure, the routing state switching of the 4 x 4 single mode optical routing unit is tuned by thermo-optic effect or plasma dispersion effect.
According to an embodiment of the present disclosure, the 2×2 optical switching unit is a mach-zehnder interferometer structure or a microring resonator structure.
According to an embodiment of the present disclosure, the 2×2 optical switches of the N4×4 single-mode optical routing units are mach-zehnder interferometer structures or micro-ring resonator structures.
According to an embodiment of the present disclosure, four multimode input waveguides, the four mode demultiplexers, the four groups of single-mode input waveguides, the N single-mode routing units, the four groups of single-mode output waveguides, the four mode multiplexers, and the four multimode output waveguides are fabricated on a silicon-on-insulator platform.
As another aspect of the present disclosure, a link switching network supporting multiple modes is provided, including any of the four-port multimode routers described above.
According to an embodiment of the disclosure, the link switching network is a Mesh network, a Fat-Tree network, a Crossbar network, a Clos network.
According to embodiments of the present disclosure, multi-mode expansion can be achieved by combining a mode multiplexer, a mode demultiplexer, and N4×4 single-mode optical routing units to accommodate the use requirements of higher communication capacity, and can be implemented in a system that includes an optical link, such as: other optical links in all routing states of input 1 to output 2 may be established and the already established links may remain unchanged without blocking.
Drawings
Fig. 1 is a schematic diagram of a four-port multimode router structure according to an embodiment of the disclosure.
Detailed Description
For the purposes of promoting an understanding of the principles and advantages of the disclosure, reference will now be made to the embodiments illustrated in the drawings and specific language will be used to describe the same. This disclosure may, however, be embodied in different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. In the drawings, the size of layers and regions, as well as the relative sizes, may be exaggerated for the same elements throughout.
Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings. It should be understood that the description is only exemplary and is not intended to limit the scope of the present disclosure. In the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the present disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the concepts of the present disclosure.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The terms "comprises," "comprising," and/or the like, as used herein, specify the presence of stated features, steps, operations, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, or components.
All terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art unless otherwise defined. It should be noted that the terms used herein should be construed to have meanings consistent with the context of the present specification and should not be construed in an idealized or overly formal manner.
For the convenience of those skilled in the art to understand the technical solutions of the present disclosure, the following technical terms will be explained.
Where expressions like at least one of "A, B and C, etc. are used, the expressions should generally be interpreted in accordance with the meaning as commonly understood by those skilled in the art (e.g.," a system having at least one of A, B and C "shall include, but not be limited to, a system having a alone, B alone, C alone, a and B together, a and C together, B and C together, and/or A, B, C together, etc.). Where a formulation similar to at least one of "A, B or C, etc." is used, in general such a formulation should be interpreted in accordance with the ordinary understanding of one skilled in the art (e.g. "a system with at least one of A, B or C" would include but not be limited to systems with a alone, B alone, C alone, a and B together, a and C together, B and C together, and/or A, B, C together, etc.).
Fig. 1 is a schematic diagram of a four-port multimode router structure according to an embodiment of the disclosure.
As shown in fig. 1, in one aspect of the present disclosure, there is provided a four-port multimode router comprising: four multimode input waveguides 1101 to 1104, four mode demultiplexers 1201 to 1204, four single-mode input waveguide groups (1011 to 101N) to (1041 to 104N), N4×4 single-mode optical routing units 301 to 30N, four single-mode output waveguide groups (2011 to 201N) to (2041 to 204N), four mode multiplexers 2201 to 2204, and four multimode output waveguides 2101 to 2104.
The input of each of the four mode demultiplexers 1201-1204 (4.ltoreq.i.ltoreq.1 and i is an integer) is connected to one multimode input waveguide 110i, the mode demultiplexer 120i being adapted to convert the received multimode multiplexed signal into N single-mode signals, where N is a positive integer. Each of the four single-mode input waveguide groups (1011-101N) to (1041-104N) 10i 1-10 iN includes N single-mode input waveguides, and input ends of the N single-mode input waveguides are connected to N output ends of one mode demultiplexer 120 i. The same input ends of the N4×4 single-mode optical routing units 301 to 30N are connected to N single-mode waveguide output ends of one single-mode input waveguide group 10i1 to 10iN, and the 4×4 single-mode optical routing units 301 to 30N receive single-mode signals. Each single-mode output waveguide group iN the four single-mode output waveguide groups comprises N single-mode output waveguides 10i 1-10 iN, and the input ends of the N single-mode output waveguides 10i 1-10 iN are respectively connected with the same output end of each 4×4 single-mode optical routing unit. The input end of each of the four mode multiplexers 2201-2204 is connected to the output end of N single-mode output waveguides of one single-mode output waveguide group, and the mode multiplexer is adapted to convert the received N single-mode signals into a multimode multiplexed signal. The input of the multimode output waveguide 210i of the four multimode output waveguides 2101-2104 is connected to the output of the mode multiplexer 220 i.
According to embodiments of the present disclosure, multi-mode expansion may be achieved by combining the mode multiplexer 220i, the mode demultiplexer 120i, and the N4×4 single-mode optical routing units 301 to 30N to accommodate the use requirement of higher communication capacity, and may be achieved in a system including a certain optical link, such as: other optical links may be established in all routing states of the input 1101 to the output 2102, and the already established links may remain unchanged, without blocking.
According to the embodiment of the disclosure, the four mode demultiplexers demultiplexes the four-channel multimode multiplexed signal into N single-mode signals, the N single-mode signals are transmitted to the same input end of the N single-mode optical routing units through the corresponding single-mode input waveguide groups, the N single-mode optical routing units exchange the N single-mode signals from the same mode demultiplexer 220i to the same mode multiplexer 220j through the single-mode output waveguide groups (i is not equal to j,4 is not equal to i, j is not equal to 1, i and j are integers), and the four groups of single-mode signals are converted into four-channel multimode multiplexed signals through the four mode multiplexers 220 j.
According to an embodiment of the present disclosure, the number of modes of the supported maximum multimode multiplexed signal is N.
According to embodiments of the present disclosure, the number of modes N may be expanded.
According to an embodiment of the present disclosure, a 4×4 single-mode optical routing unit represents a single-mode optical routing unit having 4 inputs and 4 outputs.
According to embodiments of the present disclosure, a 4×4 single modeThe optical routing unit is composed of four 2×2 optical switches S i 0 And the ring-shaped routing structure is formed.
According to an embodiment of the present disclosure, four 2×2 optical switches S i 0 Comprising the following steps: first 2 x 2 optical switch S 1 0 The first input is adapted to receive one of the N single-mode signals converted by the second mode demultiplexer 1202; first 2 x 2 optical switch S 1 0 Is adapted to receive one of the N single-mode signals converted by the third mode demultiplexer 1203. Second 2X 2 optical switch S 2 0 A first input is adapted to receive one of the N single-mode signals converted by the first mode demultiplexer 1201; second 2X 2 optical switch S 2 0 Is adapted to be connected to a first 2 x 2 optical switch S 1 0 Is connected to the first output terminal of the first switch; second 2X 2 optical switch S 2 0 Is adapted to be coupled to a fourth mode multiplexer 2204. Third 2X 2 optical switch S 3 0 The first input end is suitable for being connected with a first 2X 2 optical switch S 1 0 A second output terminal of (a); third 2X 2 optical switch S 3 0 Is adapted to receive one of the N single-mode signals converted by the fourth mode demultiplexer 1204; second 2X 2 optical switch S 2 0 Is adapted to be coupled to the first mode multiplexer 2201. Fourth 2×2 optical switch S 4 0 Is adapted to be connected to a second 2 x 2 optical switch S 2 0 A second output terminal of (a); fourth 2×2 optical switch S 4 0 Is adapted to be connected to a third 2 x 2 optical switch S 3 0 Is connected to the first output terminal of the first switch; fourth 2×2 optical switch S 4 0 Is adapted to be coupled to a third mode multiplexer 2203; fourth 2×2 optical switch S 4 0 Is adapted to be coupled to a second mode multiplexer 2202.
An optical switch, according to embodiments of the present disclosure, is a device having one or more selectable transmission windows that can perform a reciprocal conversion or logic operation on optical signals in an optical transmission line or integrated optical circuit. The 2 x 2 optical switch has two waveguides at the input end and the output end respectively, and can complete two connection states, namely parallel connection and cross connection.
According to an embodiment of the disclosure, the ith single-mode input waveguide group includes N ith single-mode input waveguides, input ends of the N ith single-mode input waveguides are respectively connected with N output ends of the ith mode demultiplexer, and output ends of the N ith single-mode input waveguides are respectively connected with i input ends of the N4×4 single-mode optical routing units.
According to an embodiment of the disclosure, the ith single-mode output waveguide group includes N ith single-mode output waveguides, output ends of the N ith single-mode output waveguides are respectively connected with N input ends of the first mode multiplexer, and input ends of the N ith single-mode output waveguides are respectively connected with ith output ends of the N4×4 single-mode optical routing units; wherein i is more than or equal to 4 and less than or equal to 1, and i is an integer.
According to an embodiment of the present disclosure, the 2×2 optical switching units are switched between a pass-through state and a cross state according to a control signal, and the 2×2 optical switching units of the N4×4 single-mode optical routing units are simultaneously in the pass-through state or the cross state, so that the N4×4 single-mode optical routing units are simultaneously in the same routing state.
According to the embodiment of the disclosure, N4×4 single-mode optical routing units are simultaneously in the same routing state, and each 4×4 single-mode optical routing unit has the following 9 routing states according to the corresponding relationship of input and output:
(1) input 1101-output 2102, input 1102-output 2101, input 1103-output 2104, input 1104-output 2103;
(2) input 1101-output 2102, input 1102-output 2104, input 1103-output 2101, input 1104-output 2103;
(3) input 1101-output 2102, input 1102-output 2103, input 1103-output 2104, input 1104-output 2101;
(4) input 1101-output 2103, input 1102-output 2104, input 1103-output 2101, input 1104-output 2102;
(5) input 1101-output 2103, input 1102-output 2104, input 1103-output 2102, input 1104-output 2101;
(6) input 1101-output 2103, input 1102-output 2101, input 1103-output 2104, input 1104-output 2102;
(7) input 1101-output 2104, input 1102-output 2101, input 1103-output 2102, input 1104-output 2103;
(8) input 1101-output 2104, input 1102-output 2103, input 1103-output 2102, input 1104-output 2101; and
(9) input 1101-output 2104, input 1102-output 2103, input 1103-output 2101, and input 1104-output 2102.
According to embodiments of the present disclosure, the routing state switching of a 4 x 4 single mode optical routing unit is tuned by thermo-optic effect or plasma dispersion effect.
According to embodiments of the present disclosure, the thermo-optic effect or the plasma dispersion effect may be selected to adjust its routing state depending on the desired speed and extinction ratio.
According to the embodiments of the present disclosure, in the case of using the thermo-optical effect, the response speed is slow (in the order of us) but the loss is small compared to the case of using the plasma dispersion effect.
According to the embodiments of the present disclosure, in the case of using the plasma dispersion effect, the response speed is fast (ns order) compared to the case of using the thermo-optical effect, but the loss is large.
According to an embodiment of the present disclosure, the 2×2 optical switching unit is a mach-zehnder interferometer structure or a micro-ring resonator structure.
According to embodiments of the present disclosure, each 4×4 single-mode optical routing unit uses 4 optical switches of the same mach-zehnder interferometer structure or micro-ring resonator structure.
According to the embodiment of the disclosure, in the case that the 2×2 optical switch unit is a mach-zehnder interferometer structure, the four-port multimode router has a characteristic of large bandwidth.
According to embodiments of the present disclosure, four multimode input waveguides, four mode demultiplexers, four groups of single-mode input waveguides, N single-routing units, four groups of single-mode output waveguides, four mode multiplexers, and four multimode output waveguides are fabricated on an insulator silicon platform.
In an exemplary embodiment, the input of the first mode demultiplexer 1201 is connected to the first multimode input waveguide 1101, and the first mode demultiplexer 1201 converts the received multimode signals into N single-mode signals. An input of the second mode demultiplexer 1202 is connected to the second multimode input waveguide 1102, and the second mode demultiplexer 1202 converts the received multimode signals into N single-mode signals. An input terminal of the third mode demultiplexer 1203 is connected to the third multimode input waveguide 1103, and the third mode demultiplexer 1203 converts the received multimode signals into N single mode signals. An input of the fourth mode demultiplexer 1204 is connected to the fourth multimode input waveguide 1104, and the fourth mode demultiplexer 1204 converts the received multimode signal into N single-mode signals.
The first input ends of the N4×4 single-mode optical routing units are respectively connected to the output ends of the N single-mode waveguides 1011 to 101N of the first single-mode input waveguide group, so that the first input ends of the N4×4 single-mode optical routing units respectively receive the single-mode signals processed by the first mode demultiplexer 1201.
The second input ends of the N4×4 single-mode optical routing units are respectively connected to the output ends of the N single-mode waveguides 1021 to 102N of the second single-mode input waveguide group, so that the second input ends of the N4×4 single-mode optical routing units respectively receive the single-mode signals processed by the second mode demultiplexer 1202.
The third input ends of the N4×4 single-mode optical routing units are respectively connected to the output ends of the N single-mode waveguides 1031 to 103N of the third single-mode input waveguide group, so that the third input ends of the N4×4 single-mode optical routing units respectively receive the single-mode signals processed by the third mode demultiplexer 1203.
The fourth input ends of the N4×4 single-mode optical routing units are respectively connected to the output ends of the N single-mode waveguides 1041 to 104N of the fourth single-mode input waveguide group, so that the fourth input ends of the N4×4 single-mode optical routing units respectively receive the single-mode signals processed by the fourth mode demultiplexer 1204.
The input ends of the N single-mode output waveguides in the first single-mode output waveguide group are respectively connected to the first output ends of the 4×4 single-mode optical routing units, and the first mode multiplexer 2201 converts the received N single-mode signals into multimode multiplexed signals.
The input ends of the N single-mode output waveguides in the second single-mode output waveguide group are respectively connected to the second output ends of the 4×4 single-mode optical routing units, and the second mode multiplexer 2202 converts the received N single-mode signals into multimode multiplexed signals.
The input ends of the N single-mode output waveguides in the third single-mode output waveguide group are respectively connected to the third output ends of the 4×4 single-mode optical routing units, and the second mode multiplexer 2202 converts the received N single-mode signals into multimode multiplexed signals.
The input ends of the N single-mode output waveguides in the fourth single-mode output waveguide group are respectively connected to the fourth output ends of the respective 4×4 single-mode optical routing units, and the second mode multiplexer 2202 converts the received N single-mode signals into multimode multiplexed signals.
An input end of the first multimode output waveguide is connected to an output end of the first mode multiplexer 2201, and transmits a first multimode multiplexed signal. An input terminal of the second multimode output waveguide is connected to an output terminal of the second mode multiplexer 2202, and transmits a second multimode multiplexed signal. An input end of the third multimode output waveguide is connected to an output end of the third mode multiplexer 2203, and transmits a third multimode multiplexed signal. An input end of the fourth multimode output waveguide is connected to an output end of the fourth mode multiplexer 2204, and transmits a fourth multimode multiplexed signal.
As another aspect of the present disclosure, a link switching network supporting multiple modes is provided, including a four-port multimode router of any of the above.
According to an embodiment of the present disclosure, the link switching network is a Mesh network, a Fat-Tree network, a Crossbar network, a Clos network.
It should be further noted that, the directional terms mentioned in the embodiments, such as "upper", "lower", "front", "rear", "left", "right", etc., are only referring to the directions of the drawings, and are not intended to limit the scope of the present disclosure. Like elements are denoted by like or similar reference numerals throughout the drawings. In the event that an understanding of the present disclosure may be made, conventional structures or constructions will be omitted, and the shapes and dimensions of the various parts in the drawings do not reflect actual sizes and proportions, but merely illustrate the contents of the embodiments of the present disclosure.
Unless otherwise known, numerical parameters in this specification and the appended claims are approximations that may vary depending upon the desired properties sought to be obtained by the present disclosure. In particular, all numbers expressing quantities of ingredients, reaction conditions, and so forth used in the specification and claims are to be understood as being modified in all instances by the term "about". In general, the meaning of expression is meant to include a variation of + -10% in some embodiments, a variation of + -5% in some embodiments, a variation of + -1% in some embodiments, and a variation of + -0.5% in some embodiments by a particular amount.
The use of ordinal numbers such as "first," "second," "third," etc., in the description and the claims to modify a corresponding element does not by itself connote any ordinal number of elements or the order of manufacturing or use of the ordinal numbers in a particular claim, merely for enabling an element having a particular name to be clearly distinguished from another element having the same name.
Furthermore, unless specifically described or steps must occur in sequence, the order of the above steps is not limited to the list above and may be changed or rearranged according to the desired design. In addition, the above embodiments may be mixed with each other or other embodiments based on design and reliability, i.e. the technical features of the different embodiments may be freely combined to form more embodiments.
While the foregoing is directed to embodiments of the present disclosure, other and further details of the invention may be had by the present application, it is to be understood that the foregoing description is merely exemplary of the present disclosure and that no limitations are intended to the scope of the disclosure, except insofar as modifications, equivalents, improvements or modifications may be made without departing from the spirit and principles of the present disclosure.
Claims (10)
1. A four-port multimode router comprising:
four multimode input waveguides;
four mode demultiplexers, the input end of each of the mode demultiplexers is connected to one of the multimode input waveguides, the mode demultiplexers are adapted to convert the received multimode multiplexed signal into N single-mode signals, where N is a positive integer;
four single-mode input waveguide groups, each of which comprises N single-mode input waveguides, the input ends of the N single-mode input waveguides being connected with N output ends of one of the mode demultiplexers;
the same input ends of the N4X 4 single-mode optical routing units are connected with N single-mode waveguide output ends of one single-mode input waveguide group, and the 4X 4 single-mode optical routing units receive the single-mode signals;
four single-mode output waveguide groups, wherein each single-mode output waveguide group comprises N single-mode output waveguides, and the input ends of the N single-mode output waveguides are respectively connected with the same output end of each 4X 4 single-mode optical routing unit;
four mode multiplexers, the input end of each mode multiplexer is connected with the output ends of N single-mode output waveguides of a single-mode output waveguide group, and the mode multiplexer is suitable for converting the received N single-mode signals into multimode multiplexing signals;
and the input ends of the multimode output waveguides are connected with the output end of the mode multiplexer.
2. The four-port multimode router of claim 1 wherein said 4 x 4 single-mode optical routing element is a ring-shaped routing structure of four 2 x 2 optical switches; the four 2 x 2 optical switches include:
a first 2 x 2 optical switch having a first input adapted to receive one of said N single-mode signals converted by said second mode demultiplexer; a second input of said first 2 x 2 optical switch is adapted to receive one of said N single-mode signals converted by said third mode demultiplexer;
a second 2 x 2 optical switch having a first input adapted to receive one of said N single-mode signals converted by said first mode demultiplexer; the second input end of the second 2 x 2 optical switch is suitable for being connected with the first output end of the first 2 x 2 optical switch; a first output of the second 2 x 2 optical switch is adapted to be connected to the fourth mode multiplexer;
a third 2 x 2 optical switch, the first input terminal being adapted to connect to the second output terminal of the first 2 x 2 optical switch; a second input of said third 2 x 2 optical switch is adapted to receive one of said N single-mode signals converted by said fourth mode demultiplexer; a second output of the second 2 x 2 optical switch is adapted to connect to the first mode multiplexer;
a fourth 2 x 2 optical switch, the first input terminal being adapted to connect to a second output terminal of said second 2 x 2 optical switch; the second input end of the fourth 2 x 2 optical switch is suitable for being connected with the first output end of the third 2 x 2 optical switch; a first output of the fourth 2 x 2 optical switch is adapted to be connected to the third mode multiplexer; a second output of the fourth 2 x 2 optical switch is adapted to be connected to the second mode multiplexer.
3. The four-port multimode router of claim 1, wherein,
the ith single-mode input waveguide group comprises N ith single-mode input waveguides, the input ends of the N ith single-mode input waveguides are respectively connected with the N output ends of the ith mode demultiplexer, and the output ends of the N ith single-mode input waveguides are respectively connected with the ith input ends of the N4 x 4 single-mode optical routing units;
the ith single-mode output waveguide group comprises N ith single-mode output waveguides, the output ends of the N ith single-mode output waveguides are respectively connected with the N input ends of the ith mode multiplexer, and the input ends of the N ith single-mode output waveguides are respectively connected with the ith output ends of the N4 x 4 single-mode optical routing units; wherein i is more than or equal to 4 and less than or equal to 1, and i is an integer.
4. The four-port multimode router of claim 1, said 2 x 2 optical switch units being switched between a pass-through state and a cross-over state in accordance with a control signal, said 2 x 2 optical switch units of N said 4 x 4 single-mode optical routing units being simultaneously in either a pass-through state or a cross-over state, such that N said 4 x 4 single-mode optical routing units are simultaneously in the same routing state.
5. The four-port multimode router of claim 1, tuning the routing state switching of the 4 x 4 single mode optical routing cells by thermo-optic effect or plasma dispersion effect.
6. The four-port multimode router of claim 1, the 2 x 2 optical switching unit being a mach-zehnder interferometer structure or a microring resonator structure.
7. The four-port multimode router of claim 1 wherein the 2 x 2 optical switches of N of the 4 x 4 single-mode optical routing cells are either mach-zehnder interferometer structures or microring resonator structures.
8. The four-port multimode router of claim 1 wherein four multimode input waveguides, the four mode demultiplexers, the four groups of single-mode input waveguides, the N single-mode optical routing units, the four groups of single-mode output waveguides, the four mode multiplexers, and the four multimode output waveguides are fabricated on a silicon-on-insulator platform.
9. A link switching network supporting multimode comprising the four-port multimode router of any one of claims 1-8.
10. The link switching network according to claim 9, which is a Mesh network, a Fat-Tree network, a Crossbar network, a Clos network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211696485.3A CN116016333A (en) | 2022-12-28 | 2022-12-28 | Four-port multimode router and link switching network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211696485.3A CN116016333A (en) | 2022-12-28 | 2022-12-28 | Four-port multimode router and link switching network |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116016333A true CN116016333A (en) | 2023-04-25 |
Family
ID=86026296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211696485.3A Pending CN116016333A (en) | 2022-12-28 | 2022-12-28 | Four-port multimode router and link switching network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116016333A (en) |
-
2022
- 2022-12-28 CN CN202211696485.3A patent/CN116016333A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110012368B (en) | Silicon-based integrated on-chip multi-mode optical switching system compatible with wavelength division multiplexing signals | |
| CA2285128C (en) | Switch for optical signals | |
| EP2771733B1 (en) | Scalable optical switches and switching modules | |
| JP3842511B2 (en) | Optical spatial switch using multiport coupler | |
| US20100239266A1 (en) | Method and apparatus for implementing non-blocking computer interconnection network using bidirectional optical switch | |
| CN106990481B (en) | 2X 2 multimode optical switch and network on chip | |
| JPH10154986A (en) | Atm switch | |
| US20070269211A1 (en) | Multiple port symmetric reflective wavelength-selective mesh node | |
| CN108828720B (en) | Full-switching multimode signal optical switch architecture | |
| JPH11513206A (en) | Optical fiber network signal routing | |
| CA2000646C (en) | Switch for selectively switching optical wavelengths | |
| US6542655B1 (en) | N×N crossconnect switch using wavelength routers and space switches | |
| AU6068700A (en) | Dense tree optical switch network | |
| CN104317000B (en) | The wavelength and space All-optical routing device of modular extendable | |
| Watanabe et al. | Silica-based PLC 1/spl times/128 thermo-optic switch | |
| Wu et al. | Large scale silicon photonics switches based on MEMS technology | |
| US6859576B2 (en) | Optical cross-connect system | |
| Siokis et al. | Electro-optic switches based on space switching of multiplexed WDM signals: blocking vs non-blocking design trade-offs | |
| CN116016333A (en) | Four-port multimode router and link switching network | |
| CN104297853B (en) | Modular wavelength and space All-optical routing device | |
| CN108363146B (en) | Five-port optical router with low insertion loss | |
| JP2003009195A (en) | Crossconnect switch | |
| US7653306B2 (en) | Multiple port symmetric transmissive wavelength-selective mesh node | |
| Hunter et al. | Architecture for large dilated optical TDM switching networks | |
| JP3042664B2 (en) | Optical frequency selection 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 |