CN214278476U - MxN multicast switching optical switch - Google Patents
MxN multicast switching optical switch Download PDFInfo
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- CN214278476U CN214278476U CN202120563984.XU CN202120563984U CN214278476U CN 214278476 U CN214278476 U CN 214278476U CN 202120563984 U CN202120563984 U CN 202120563984U CN 214278476 U CN214278476 U CN 214278476U
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Abstract
The utility model discloses a MxN multicast exchange optical switch, change the mirror including optical divider waveguide, port waveguide, lens and micro-mechanical electromechanical system, the optical divider waveguide is the M layer, the port waveguide is provided with the one deck, micro-mechanical electromechanical system changes the mirror and is provided with N, the number of lens and the quantity that micro-mechanical electromechanical system changes the mirror equal, the M layer optical divider waveguide and one the port waveguide forms M + layer waveguide array through the multilayer stack, wherein, the optical divider waveguide is the input layer, the port waveguide is the output layer, the optical divider waveguide is the xN way, the port number of port waveguide is N. The size reduction of the multicast switching optical switch can be realized through optical waveguide integration, the integration level is improved, the reliability is good, the product size can be reduced through the arrangement of the waveguide integration, and the problems of large size, inconvenience in fiber coiling and high cost caused by the use of a separation device are solved.
Description
Technical Field
The utility model relates to the field of communication technology, especially, relate to a MxN multicast switching optical switch.
Background
The advent and development of optical fiber communication technology has revolutionized the communication industry, about 85% of the world's communication services are now transmitted over optical fibers, and long-distance trunk networks and local trunk networks have also widely used optical fibers; the optical switch can realize functions of dynamic optical path management, fault protection of an optical network, dynamic wavelength allocation and the like, and has important significance for solving wavelength contention in the current complex network, improving wavelength reuse rate and flexibly configuring the network.
An optical switch is an optical device with one or more selectable transmission ports that functions to physically switch or logically operate optical signals in an optical transmission line or integrated optical circuit. In the optical fiber test system, the optical switch is used for optical fiber, optical fiber equipment test and network test and an optical fiber sensing multi-point monitoring system.
However, since the optical switch cannot be integrated by the optical waveguide, it is difficult to achieve size reduction of the multicast switch optical switch, which is not favorable for improving the integration level of the optical switch, and further causes reliability reduction of the optical switch.
SUMMERY OF THE UTILITY MODEL
In order to overcome prior art's not enough, the utility model provides a MxN multicast exchange photoswitch, the utility model discloses can realize M way light signal to the function of N port arbitrary selection propagation, it is integrated through the optical waveguide simultaneously, can realize that multicast exchange photoswitch size descends, and the integrated level improves, not butt fusion optic fibre, good reliability.
In order to solve the technical problem, the utility model provides a following technical scheme: an MxN multicast exchange optical switch comprises optical splitter waveguides, port waveguides, lenses and micro-mechanical-electrical-system rotating mirrors, wherein the optical splitter waveguides are M layers, one layer of port waveguides is arranged on each micro-mechanical-electrical-system rotating mirror, the number of the lenses is equal to that of the micro-mechanical-electrical-system rotating mirrors, the M layers of optical splitter waveguides and one port waveguide are overlapped in a multilayer mode to form an M + layer waveguide array, the optical splitter waveguides are input layers, the port waveguides are output layers, the optical splitter waveguides are xN paths, and the number of ports of the port waveguides is N.
As an optimized technical scheme of the utility model, each layer of output of M + layer waveguide array all has N way vertical overlapping.
As a preferred technical solution of the present invention, the number of the lenses is N and forms an array, and N the micro-mechanical-electrical-system turning mirror includes N micro-mechanical-electrical-system turning mirror arrays.
As an optimized technical scheme of the utility model, lens are fiber collimator.
As an optimized technical solution of the present invention, the lens is a spherical lens.
As an optimized technical solution of the present invention, the lens is an aspheric lens.
As an optimized technical solution of the present invention, the optical splitter waveguide and the port waveguide are glass waveguides.
As an optimized technical solution of the present invention, the optical splitter waveguide and the port waveguide are silicon waveguides.
As an optimized technical solution of the present invention, the optical splitter waveguide and the port waveguide are silicon nitride waveguides.
As a preferred technical solution of the present invention, the optical splitter waveguide and the port waveguide are polymer waveguides.
Compared with the prior art, the utility model discloses the beneficial effect that can reach is:
1. the utility model discloses a realize the function that M way light signal selected the propagation to N ports wantonly, through the optical waveguide integration, can realize that multicast switching photoswitch size descends simultaneously, the integrated level improves, not weld the optic fibre, and the excellent in reliability result of use;
2. the utility model discloses a set up the waveguide integration, can realize that the product size reduces to overcome because whole use separator, the size that brings is big on the left side, the fine inconvenience of dish, and the problem that the cost is high on the left side.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
fig. 2 is a schematic diagram of a multilayer waveguide array according to the present invention;
fig. 3 is a single-layer schematic diagram of the array 1xN optical splitter chip of the present invention;
fig. 4 is a schematic view of a port waveguide according to the present invention;
fig. 5 is a left side cross-sectional view of the waveguide array of the present invention;
fig. 6 is a right side cross-sectional view of the waveguide array of the present invention;
FIG. 7 is a schematic view of a second embodiment of the present invention;
fig. 8 is a schematic diagram of a third embodiment of the present invention.
Wherein: 1. an optical splitter waveguide; 2. a port waveguide; 3. a lens; 4. the micro-mechanical electromechanical system rotates the mirror.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the functions of the invention easy to understand, the invention is further explained below with reference to the specific embodiments, but the following embodiments are only the preferred embodiments of the invention, not all. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents and the like used in the following examples are commercially available unless otherwise specified.
Example 1:
referring to fig. 1, an MXN multicast switch includes a 1-M layer 1xN optical splitter waveguide 1, a 2-N port waveguide 2, 3-N lenses 3, and 4-N micro-mechanical-electrical-system turning mirrors 4.
Referring to fig. 2, 1-M layers of 1xN optical splitter waveguides 1 and 2-N port waveguides 2 are stacked and assembled into a whole, where the 1-M layers of 1xN optical splitter waveguides 1 are input layers and the 2-N port waveguides 2 are output layers.
Referring to fig. 3, a single layer 1xN optical splitter waveguide 1 is shown.
Referring to fig. 4, the N-port waveguide 2 is shown, and the waveguide interval on the left side of the N-port waveguide 2 is the same as the fiber interval, so that the right waveguide interval can be adjusted according to the actual sizes of the lens 3 and the rotating mirror 4 of the micro-mechanical-electrical-mechanical system, in order to facilitate coupling with the fiber.
Referring to fig. 5, on the right-side end face of the multilayer waveguide, N waveguides of each layer are overlapped in the longitudinal direction, each waveguide forms an array Sk1 ≦ k ≦ N in the longitudinal direction, each array Sk forms a 1xN optical switch corresponding to 1 lens 3 and 1 rotating mirror 4 of the micro-electromechanical system, where the waveguide of the N-port waveguide 2 is an output waveguide, and the rest are input waveguides.
Referring to FIG. 6, at the left end face of the multilayer waveguide, the waveguides are staggered so as not to interfere with each other when coupled to the fiber array.
The utility model discloses a theory of operation and use flow: the chip input end of M1 xN optical splitters is used as an optical inlet, namely M incident light signals are numbered P1 and P2 … Pm, each optical signal is divided into N paths of sub signals by each optical splitter (the first path P1 is divided into Q11, Q12 … Q1k … Q1N, the mth path is divided into Qm1 and Qm2 … Qmk … Qmn), the kth path 1 ≦ k ≦ N of each optical splitter and the kth path of N port waveguide 2(R1 and R2 … Rk … Rn) form the kth column of longitudinal waveguide array Sk (Q1k and Q2k … Rk … Qmk) in the chip stacking direction, each column of longitudinal waveguide array Sk in the chip stacking direction shares one lens 3 and one micro-mechanical-electrical system turning mirror 4, all M optical signals Q1k and Q2k … Qmk in the kth column of longitudinal waveguide array are transmitted out of the port and enter the corresponding kth lens 3, and the optical signals are converted into the micro-mechanical-electrical-mechanical-surface-optical-mechanical-optical-splitter 4, the rotating mirror 4 of the micro-mechanical-electrical system can rotate an angle, and the rotating mirror 4 of the micro-mechanical-electrical system is rotated to a specific angle, so that one path of the M optical signals is selectively reflected to the kth waveguide Rk in the N port waveguide 2, and thus the output waveguide can receive any path of the M optical signals, and similarly, the waveguides of the N port waveguides 2 of other paths can also be downloaded to any path of the M optical signals, so that the function of the MXN multicast switching optical switch is realized, and the N port waveguide 2 is an optical outlet, namely N emergent optical signals.
Example two:
referring to fig. 1, an MXN multicast switch includes 1-M layers of 1xN optical splitter waveguides 1, 2-optical arrays, 3-N lenses 3, and 4-N micro-mechanical-electrical-mechanical-system mirrors 4.
Referring to fig. 2, 1-M layers of 1xN optical splitter waveguides 1 and 2-light arrays are stacked and assembled into a whole, wherein the 1-M layers of 1xN optical splitter waveguides 1 are input layers and the 2-light arrays are output layers.
Referring to fig. 3, a single layer 1xN optical splitter waveguide 1 is shown.
Referring to fig. 4, the light array is shown, the waveguide spacing on the left side of the light array is the same as the fiber spacing in size, so as to facilitate coupling with the fiber, and the waveguide spacing on the right side can be adjusted according to the actual sizes of the lens 3 and the rotating mirror 4 of the micro-mechanical-electrical-mechanical system.
Referring to fig. 5, on the right-side end face of the multilayer waveguide, N waveguides of each layer are overlapped in the longitudinal direction, each waveguide forms an array Sk1 ≦ k ≦ N in the longitudinal direction, each array Sk forms a 1xN optical switch corresponding to 1 lens 3 and 1 mems turning mirror 4, where the waveguides of the optical array are output waveguides, and the rest are input waveguides.
Referring to FIG. 6, at the left end face of the multilayer waveguide, the waveguides are staggered so as not to interfere with each other when coupled to the fiber array.
The utility model discloses a theory of operation and use flow: the input end of M1 xN optical splitter chips is used as an optical inlet, namely M incident optical signals are numbered P1 and P2 … Pm, each optical signal is divided into N paths of sub-signals by each optical splitter (the first path P1 is divided into Q11, Q12 … Q1k … Q1N, the mth path is divided into Qm1 and Qm2 … Qmk … Qmn), the kth path 1 ≦ k ≦ N of each optical splitter and the kth path of the optical array (R1, R2 … Rk … Rn) form the kth column of longitudinal waveguide array Sk (Q1k, Q2k … Rk … Qmk) in the chip stacking direction, each column of longitudinal waveguide array Sk in the chip stacking direction shares one lens 3 and one micro-mechanical and electrical system turning mirror 4, all M optical signals Q1k, Q2k … Qmk in the kth column of longitudinal waveguide array propagate out of the port and enter the corresponding lens 3 k, and the micro-mechanical and electrical and mechanical and electrical system turning mirror 4 is carried out to enter the micro-mechanical and mechanical system 4, the rotating mirror 4 of the micro-mechanical-electrical system can rotate an angle, and the rotating mirror 4 of the micro-mechanical-electrical system is rotated to a specific angle, so that one path of the M optical signals is selectively reflected to the kth waveguide Rk in the optical line array, and thus the output waveguide can receive any path of the M optical signals.
Example two:
referring to fig. 1, an MXN multicast switch includes a 1-M layer 1xN optical splitter waveguide 1, a 2-N port waveguide 2, 3-N lenses 3, and 4-N micro-mechanical-electrical-system turning mirrors 4.
Referring to fig. 2, 1-M layers of 1xN optical splitter waveguides 1 and 2-N port waveguides 2 are stacked and assembled into a whole, where the 1-M layers of 1xN optical splitter waveguides 1 are input layers and the 2-N port waveguides 2 are output layers.
Referring to fig. 3, a single layer 1xN optical splitter waveguide 1 is shown.
Referring to fig. 4, the N-port waveguide 2 is shown, and the waveguide interval on the left side of the N-port waveguide 2 is the same as the fiber interval, so that the right waveguide interval can be adjusted according to the actual sizes of the lens 3 and the rotating mirror 4 of the micro-mechanical-electrical-mechanical system, in order to facilitate coupling with the fiber.
Referring to fig. 5, on the right-side end face of the multilayer waveguide, N waveguides of each layer are overlapped in the longitudinal direction, each waveguide forms an array Sk1 ≦ k ≦ N in the longitudinal direction, each array Sk forms a 1xN optical switch corresponding to 1 lens 3 and 1 rotating mirror 4 of the micro-electromechanical system, where the waveguide of the N-port waveguide 2 is an output waveguide, and the rest are input waveguides.
Referring to fig. 6, at the left end face of the multilayer waveguide, the waveguides are staggered so as not to interfere with each other when coupled with the optical fiber array;
referring to fig. 8, 1-M1 xN optical splitters, 2-N port waveguide 2 array, 3-N lenses 3, and 4-N mems turning mirrors 4 are integrated into a waveguide layer or a part of a waveguide layer, or all waveguides can be integrated into one layer.
The utility model discloses a theory of operation and use flow: the input ends of M1 xN optical splitters are used as light inlet ports, namely M incident light signals are provided, each light signal is divided into N paths of identical sub signals by each 1xN optical splitter, the kth path 1 ≦ k ≦ N of each optical splitter and the kth path of N port waveguide 2 form a waveguide array Sk at a specific position on the right side of a chip, each path is separated at the output end, so that interference is not generated when each path of Sk coupling lens 3 and a rotating mirror are used, the waveguide array Sk forms an optical switch with one lens 3 and a micro-mechanical-electrical-system rotating mirror 4, all M sub light signals in the Sk from the 1xN optical splitters leave the splitter ports to be transmitted and enter the corresponding kth lens 3, the lens 3 collimates the light signals and then enters the surface of the micro-mechanical-electrical-system rotating mirror 4, the micro-mechanical-electrical-system rotating mirror 4 can rotate by an angle, and the micro-mechanical-electrical-system rotating mirror 4 is rotated to a specific angle, therefore, one path of the M optical signals is selectively reflected to the kth waveguide in the N port waveguide 2, so that the output waveguide receives any one path of the M optical signals, and similarly, the waveguides of the N port waveguides 2 of other paths can also be downloaded to any one of the M optical signals, thereby realizing the function of the MXN multicast optical switch.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. An MxN multicast switched optical switch, characterized by: the optical splitter waveguide array comprises an optical splitter waveguide (1), a port waveguide (2), a lens (3) and a micro-mechanical-electrical-system rotating mirror (4), wherein the optical splitter waveguide (1) is M layers, the port waveguide (2) is provided with one layer, the micro-mechanical-electrical-system rotating mirror (4) is N, the number of the lenses (3) is equal to that of the micro-mechanical-electrical-system rotating mirror (4), the M layers of the optical splitter waveguide (1) and one port waveguide (2) are stacked in a multilayer mode to form an M +1 layer waveguide array, the optical splitter waveguide (1) is an input layer, the port waveguide (2) is an output layer, the optical splitter waveguide (1) is a 1xN path, and the number of ports of the port waveguide (2) is N.
2. An MxN multicast switch optical switch according to claim 1, wherein: and N paths of output ends of each layer of the M +1 layers of waveguide arrays are longitudinally overlapped.
3. An MxN multicast switch optical switch according to claim 1, wherein: the number of the lenses (3) is N, the lenses form an array, and the N micro-mechanical-electrical-system rotating mirrors (4) comprise N micro-mechanical-electrical-system rotating mirror (4) arrays.
4. An MxN multicast switch optical switch according to claim 1, wherein: the lens (3) is an optical fiber collimator.
5. An MxN multicast switch optical switch according to claim 1, wherein: the lens (3) is a spherical lens.
6. An MxN multicast switch optical switch according to claim 1, wherein: the lens (3) is an aspheric lens.
7. An MxN multicast switch optical switch according to claim 1, wherein: the optical splitter waveguide (1) and the port waveguide (2) are glass waveguides.
8. An MxN multicast switch optical switch according to claim 1, wherein: the optical splitter waveguide (1) and the port waveguide (2) are silicon waveguides.
9. An MxN multicast switch optical switch according to claim 1, wherein: the optical splitter waveguide (1) and the port waveguide (2) are silicon nitride waveguides.
10. An MxN multicast switch optical switch according to claim 1, wherein: the optical splitter waveguide (1) and the port waveguide (2) are polymer waveguides.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120563984.XU CN214278476U (en) | 2021-03-18 | 2021-03-18 | MxN multicast switching optical switch |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120563984.XU CN214278476U (en) | 2021-03-18 | 2021-03-18 | MxN multicast switching optical switch |
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| CN214278476U true CN214278476U (en) | 2021-09-24 |
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