Multi-core optical fiber link, welding control method of multi-core optical fiber link and computer equipment

Abstract

The invention relates to a multi-core optical fiber link, a welding control method of the multi-core optical fiber link and computer equipment. The multi-core optical fiber link comprises an optical channel transmission unit, fan-in and fan-out equipment and an optical route switch, the optical channel transmission unit is welded with the multi-core optical fiber through the fan-in and fan-out equipment and used for transmitting optical signals, one end of the fan-in and fan-out equipment is welded with the multi-core optical fiber and used for connecting the optical channel transmission unit with the multi-core optical fiber, and the other end of the fan-in and fan-out equipment is used for connecting the optical route switch with the multi-core optical fiber. And one end of the optical route switch is connected with the optical channel transmission unit, and the other end of the optical route switch is connected with the fan-in and fan-out equipment for adjusting a connection port between the optical channel transmission unit and the fan-in and fan-out equipment. The multi-core optical fiber link has the advantage of accurately calibrating the position of the fiber core.

Description

Technical Field

[0001] This application relates to the field of optical fiber communication technology, and in particular to a multi-core optical fiber link, a fusion splicing control method for the multi-core optical fiber link, and a computer device. Background Technology

[0002] Multi-core optical fibers, by employing multiple cores within the same cladding for space-division multiplexing data transmission, can significantly increase single-fiber capacity, bringing new breakthroughs to the field of optical fiber communication. Among them, weakly coupled multi-core optical fibers, with the support of fan-in / fan-out (FIFO) devices, can achieve maximum compatibility with existing systems, providing a solution for improving the capacity of optical fiber transmission networks and the efficiency of optical cable space within limited duct space. However, in practical applications, especially during the splicing of multi-core optical fibers in existing networks, even with end-face alignment based on the reference core positions, cross-connection issues caused by misalignment of the multi-core fibers on both sides of the splice point still frequently occur.

[0003] Traditional methods primarily employ end-face alignment-based fusion splicing, achieving high-precision connections between multi-core fibers by directly and precisely calibrating the fiber core position on the fiber end face. However, while this method ensures core alignment accuracy, it is time-consuming due to the need for precise manipulation of the fiber end face. Summary of the Invention

[0004] Therefore, it is necessary to provide a multi-core fiber optic link, a fusion control method for the multi-core fiber optic link, and a computer device that can improve the fusion splicing efficiency of the above-mentioned technical problems.

[0005] In a first aspect, this application provides a multi-core optical fiber link, including:

[0006] The optical channel transmission unit is fused with a multi-core optical fiber through fan-in and fan-out devices and is used to transmit optical signals;

[0007] Fan-in / fan-out equipment, one end of which is fused to a multi-core optical fiber, is used to connect the optical channel transmission unit and the multi-core optical fiber;

[0008] An optical routing switch connects to an optical channel transmission unit on one end and to a fan-in / fan-out device on the other, and is used to adjust the connection ports between the optical channel transmission unit and the fan-in / fan-out device.

[0009] In one embodiment, the optical channel transmission unit includes a first optical channel transmission device located at the transmitting end of the multi-core optical fiber link and a second optical channel transmission device located at the receiving end of the multi-core optical fiber link; the number of the first optical channel transmission device and the second optical channel transmission device is the same as the number of fiber cores of the multi-core optical fiber.

[0010] In one embodiment, the fan-in fan-out device includes a first fan-in fan-out device located at the transmitting end and a second fan-in fan-out device located at the receiving end; both the first fan-in fan-out device and the second fan-in fan-out device include the same number of ports as the fiber cores; a first optical channel transmission device is connected to the first fan-in fan-out device through different ports; and a second optical channel transmission device is connected to the second fan-in fan-out device through different ports.

[0011] In one embodiment, the optical routing switch includes multiple programmable routing options; a first optical channel transmission device is connected to different ports of a first fan-in / fan-out device through different programmable routing options; and a second optical channel transmission device is connected to different ports of a second fan-in / fan-out device through different programmable routing options.

[0012] In one embodiment, it further includes:

[0013] The network management device is used to obtain the input power value of the second optical channel transmission device, and also to adjust the programmable routing in the optical routing switch to adjust the connection port between the first optical channel transmission unit and the fan-in / fan-out device when it is determined from the input power value that the multi-core fiber optic link does not meet the power requirements.

[0014] Secondly, this application provides a fusion splicing control method for a multi-core optical fiber link, comprising:

[0015] After the multi-core fiber optic link fusion splicing is completed, the initial connection relationship between the first optical channel transmission unit of the multi-core fiber optic link transmitter and the second optical channel transmission unit of the multi-core fiber optic link receiver is obtained.

[0016] The system sequentially controls the operation of each first optical channel transmission unit and obtains the current input power value detected by the corresponding second optical channel transmission unit according to the initial connection relationship.

[0017] If the multi-core fiber optic link does not meet the power requirements based on the current input power value, the connection port between the first optical channel transmission unit and the fan-in / fan-out device is adjusted by the optical routing switch, and the current candidate connection relationship is reacquired.

[0018] Return to the steps of controlling the operation of each first optical channel transmission unit in sequence, and continue to execute until the multi-core fiber link meets the power requirement conditions, then stop and re-fusion the multi-core fiber link according to the current candidate connection relationship.

[0019] In one embodiment, the process of determining that a multi-core fiber optic link does not meet the power requirement based on the current input power value includes:

[0020] Obtain the historical power record of the multi-core fiber optic link before fusion splicing; the historical power record includes the historical input power value of each second optical channel transmission unit;

[0021] If the current input power does not match the historical input power value, it is determined that the multi-core fiber optic link does not meet the power requirement.

[0022] In one embodiment, the optical routing switch includes multiple programmable routing options; the step of adjusting the connection port between the first optical channel transmission unit and the fan-in / fan-out device via the optical routing switch includes:

[0023] Adjust the programmable routing in the optical routing switch to adjust the connection port between the first optical channel transmission unit and the fan-in / fan-out device.

[0024] In one embodiment, the method further includes:

[0025] In cases where fusion splicing is required for emergency repairs of multi-core fiber optic links, fusion splicing is performed on the multi-core fibers based on the outer edge characteristics of the multi-core fibers in the link.

[0026] Thirdly, this application also provides a fusion splicing control device for a multi-core optical fiber link, comprising:

[0027] The connection acquisition module is used to acquire the initial connection relationship between the first optical channel transmission unit of the multi-core optical fiber link transmitter and the second optical channel transmission unit of the multi-core optical fiber link receiver after the multi-core optical fiber link fusion splicing is completed.

[0028] The power acquisition module is used to control the operation of each first optical channel transmission unit in sequence, and to acquire the current input power value detected by the corresponding second optical channel transmission unit according to the initial connection relationship.

[0029] The port adjustment module is used to adjust the connection port between the first optical channel transmission unit and the fan-in / fan-out device through an optical routing switch when it is determined that the multi-core optical fiber link does not meet the power requirements based on the current input power value, and to reacquire the current candidate connection relationship.

[0030] The link fusion module is used to return to the steps of sequentially controlling the operation of each first optical channel transmission unit and continue to execute until the multi-core fiber link meets the power requirement conditions, and then re-fusion the multi-core fiber link according to the current candidate connection relationship.

[0031] Fourthly, this application also provides a computer device, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the method steps of any one of the second aspects.

[0032] Fifthly, this application also provides a computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the method steps of any one of the second aspects.

[0033] In a sixth aspect, this application also provides a computer program product, including a computer program that, when executed by a processor, implements the method steps of any one of the second aspects.

[0034] The aforementioned multi-core fiber optic link, its fusion splicing control method, and computer equipment, upon completion of the multi-core fiber optic link fusion splicing, acquire the initial connection relationship between the first optical channel transmission unit at the transmitter end and the second optical channel transmission unit at the receiver end of the multi-core fiber optic link. They then sequentially control the operation of each first optical channel transmission unit and, based on the initial connection relationship, obtain the current input power value detected by the corresponding second optical channel transmission unit. If, based on the current input power value, the multi-core fiber optic link does not meet the power requirement, the connection ports between the first optical channel transmission unit and the fan-in / fan-out devices are adjusted via an optical routing switch. The current candidate connection relationship is then reacquired, and the process of sequentially controlling the operation of each first optical channel transmission unit continues until the multi-core fiber optic link meets the power requirement. Finally, the multi-core fiber optic link is re-fused based on the current candidate connection relationship. This ensures accurate connection between the transmitter and receiver ends of the multi-core fiber optic link, achieves precise alignment of the fiber core sequence, improves the fusion splicing efficiency of the multi-core fiber, thereby enhancing the reliability and stability of the optical fiber communication network and effectively guaranteeing the accuracy and integrity of signal transmission. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this application or related technologies, the drawings used in the description of the embodiments of this application or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 This is a schematic diagram illustrating the connection relationship of an incorrect fiber core sequence in one embodiment;

[0037] Figure 2 This is a schematic diagram of the connection relationship of a multi-core optical fiber link in one embodiment;

[0038] Figure 3 This is a flowchart illustrating a fusion splicing control method for a multi-core fiber optic link in one embodiment.

[0039] Figure 4 This is a flowchart illustrating the splicing control method for a multi-core fiber optic link in another embodiment;

[0040] Figure 5 This is a structural block diagram of a fusion splicing control device for a multi-core fiber optic link in one embodiment;

[0041] Figure 6 This is an internal structural diagram of a computer device in one embodiment. Detailed Implementation

[0042] In order to make the purpose, technical solutions and advantages of this application more clearly understood, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0043] It should be noted that the terms "first," "second," etc., used in this application can be used to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish the first element from the second element. The terms "comprising" and "having," and any variations thereof, used in this application, are intended to cover non-exclusive inclusion. The term "multiple" used in this application refers to two or more. The term "and / or" used in this application refers to one of the embodiments, or any combination of multiple embodiments.

[0044] With the continuous growth of global data traffic, the performance parameters of traditional solid silicon-based optical fibers, such as loss, dispersion, and nonlinearity, are gradually becoming bottlenecks restricting the development of ultra-high capacity, ultra-long span, and ultra-high speed optical fiber communication technologies. Multi-core optical fibers, by using multiple cores within the same cladding for space-division multiplexing data transmission, can significantly increase the capacity of a single fiber. Among them, weakly coupled multi-core optical fibers, with the enablement of FIFO devices, can achieve maximum compatibility with existing systems and have become the mainstream of space-division multiplexing optical fibers. This provides a high-potential solution for improving the transmission capacity of optical fiber transmission networks and enhancing the space efficiency of optical fibers and cables within limited conduit space.

[0045] However, in practical applications, especially in the live network splicing of multi-core optical fibers, even when end-face alignment is performed with reference to the position of the marker core, cross-linking issues often arise due to misalignment of the fiber cores on the left and right sides of the splice point. Furthermore, end-face alignment-based splicing methods typically require precise alignment of the fiber end faces at the splice point, resulting in a long splicing time. Since optical cable repairs usually have a time window of 6 to 8 hours, side-alignment-based splicing methods are more practical in scenarios where splicing must be completed quickly. However, side-alignment-based splicing methods do not analyze the end faces of the multi-core optical fibers, and therefore cannot achieve fiber core alignment based on the position of the marker core, making cross-linking issues more likely.

[0046] The diagram illustrates the impact of cross-core issues that may occur during splicing in multi-core optical fibers due to the polarity of the end face. Figure 1As shown in the diagram, the dashed line with arrows indicates that the fiber cores on both sides are fused together. For MCF links that have already been laid and put into use, if a cross-core problem occurs during emergency repair splicing, it will cause the connection sequence between the OTU transmission devices at both ends of the link to be disordered, thus affecting the normal operation of the system. Specifically, Figure 1 The upper half shows the correct correspondence between the optical transport units (OTUs) at both ends when the network is deployed and services are initially activated. OTU1 is paired with OTU5, OTU2 with OTU6, and so on. If a link failure occurs and is repaired and re-spliced, and cross-connection occurs, a possible service connection situation would be as follows: Figure 1 As shown in the lower half, OTU1 will be incorrectly connected to OTU6, and OTU2 will be incorrectly connected to OTU5, causing the communication system based on multi-core optical fiber to malfunction and unable to complete communication normally. It is necessary to manually adjust the physical fiber connection between the optical distribution frame (ODF) and the OTU device in the faulty station, which is time-consuming, labor-intensive, and cannot meet the time window limit for emergency repair.

[0047] Based on this, the embodiments of this application provide a multi-core optical fiber link and a multi-core optical fiber link splicing control method. By connecting an optical circuit switch (OCS) between the OTU and the FIFO, and utilizing the fast connection and switching capabilities of the OCS, the restoration and activation of services can be completed quickly while meeting the time window requirements for optical cable repair. This achieves flexible control and management of multi-core optical fiber splicing, and improves the reliability and stability of the optical fiber communication network.

[0048] In one exemplary embodiment, such as Figure 2 As shown, a multi-core fiber optic link is provided, including: an optical channel transmission unit 100, a fan-in / fan-out device 200, and an optical routing switch 300. The optical channel transmission unit 100 is fused to a multi-core fiber 400 via the fan-in / fan-out device 200 for transmitting optical signals. One end of the fan-in / fan-out device 200 is fused to the multi-core fiber 400 for connecting the optical channel transmission unit 100 and the multi-core fiber 400. One end of the optical routing switch 300 is connected to the optical channel transmission unit 100, and the other end is connected to the fan-in / fan-out device 200 for adjusting the connection ports between the optical channel transmission unit 100 and the fan-in / fan-out device 200.

[0049] Optionally, the optical channel transmission unit 100 refers to a standardized optical layer unit that encapsulates and transmits customer signals, providing a unified optical layer transmission carrier for different types of customer signals, ensuring efficient signal transmission and interoperability in the optical network. Fan-in / fan-out devices 200 are used to connect multi-core optical fibers to conventional single-mode optical fibers or OTU transmission equipment. The optical routing switch 300 adopts optical signal control switching technology based on the principle of optical cross-switching, featuring low latency, low power consumption, and full optical transparency during data transmission. It can adapt to future rate upgrade requirements, achieving a smooth transition between multiple rate upgrades and reducing operating costs. Furthermore, the optical routing switch 300 can be reconfigured at the physical layer to adapt to the needs of different tasks and improve network reliability.

[0050] In this embodiment, by adjusting the connection ports between the optical channel transmission unit and the fan-in / fan-out equipment through an optical routing switch, the service can be quickly restored and activated while meeting the time window requirements for optical cable repair. This achieves flexible control and management of multi-core optical fiber connections and improves the reliability and stability of the optical fiber communication network.

[0051] In an exemplary embodiment, the optical channel transmission unit 100 includes a first optical channel transmission device 110 located at the transmitting end of the multi-core optical fiber link and a second optical channel transmission device 120 located at the receiving end of the multi-core optical fiber link; the number of the first optical channel transmission device 110 and the second optical channel transmission device 120 is the same as the number of fiber cores of the multi-core optical fiber 400.

[0052] Optionally, the first optical channel transmission device 110 is located at the signal transmitting end of the multi-core fiber optic link, used to convert different types of customer signals into optical signals and perform split modulation according to the number of fiber cores. The second optical channel transmission device 120 is located at the signal receiving end of the multi-core fiber optic link, used to receive the optical signals from each fiber core and convert them into corresponding customer signals, realizing signal demultiplexing. The number of the first optical channel transmission device 110 and the second optical channel transmission device 120 is consistent with the number of fiber cores in the multi-core fiber 400. For example, if the multi-core fiber has N fiber cores, then it is equipped with N transmitting end devices and N receiving end devices.

[0053] In an exemplary embodiment, the fan-in / fan-out device 200 includes a first fan-in / fan-out device 210 located at the transmitting end and a second fan-in / fan-out device 220 located at the receiving end; both the first fan-in / fan-out device 210 and the second fan-in / fan-out device 220 include the same number of ports as the fiber cores; a first optical channel transmission device 110 is connected to the first fan-in / fan-out device 210 through different ports; and a second optical channel transmission device 120 is connected to the second fan-in / fan-out device 220 through different ports.

[0054] Optionally, the first fan-in / fan-out device 210 is located at the optical signal transmitting end, used to fan multiple optical signals into the core of the multi-core optical fiber, or fan them out from the core to the first optical channel transmission device 110. The second fan-in / fan-out device 220 is located at the optical signal receiving end, and its function is symmetrical to that of the first fan-in / fan-out device 210, realizing signal aggregation and splitting at the receiving end. The number of ports of the first fan-in / fan-out device 210 and the second fan-in / fan-out device 220 are exactly the same as the number of cores of the multi-core optical fiber 400, with each port corresponding one-to-one with a core, forming a fixed port-core mapping relationship.

[0055] In an exemplary embodiment, the optical routing switch 300 includes multiple programmable routing options; the first optical channel transmission device 110 is connected to different ports of the first fan-in / fan-out device 210 through different programmable routing options; and the second optical channel transmission device 120 is connected to different ports of the second fan-in / fan-out device 220 through different programmable routing options.

[0056] Optionally, the optical routing switch 300 internally includes multiple software-configurable optical path selection units. Each selection unit can dynamically adjust the transmission path of the optical signal, enabling flexible connections between ports. Programmable routing supports real-time reconfiguration, allowing changes to the optical path without physical intervention. Specifically, each first optical channel transmission device 110 is connected to different ports of the first fan-in / fan-out device 210 via an independent programmable routing unit. Similarly, each port of the second fan-in / fan-out device 220 is connected to the corresponding second optical channel transmission device 120 via a programmable routing unit. After multi-core fiber optic link splicing is completed, by adjusting the connection topology within the optical routing switch 300 and adjusting the different fiber core connection methods, the mapping relationship between the transmitter and receiver is restored to its pre-sponsoring state. This achieves precise calibration of the fiber core positions, thereby avoiding service interruptions caused by cross-core issues.

[0057] In one exemplary embodiment, the multi-core fiber optic link further includes a network management device 500. The network management device 500 is used to acquire the input power value of the second optical channel transmission device 120, and is also used to adjust the programmable routing in the optical routing switch 300 to adjust the connection port between the first optical channel transmission unit 110 and the fan-in / fan-out device 210 when it is determined from the input power value that the multi-core fiber optic link does not meet the power requirements.

[0058] Optionally, the network management device 500 collects the input power value of the second optical channel transmission device 120 in real time. The output power value reflects the optical signal strength at the end of the multi-core fiber optic link and is a core indicator for judging the link transmission quality. When the input power value does not meet the preset power requirement, the network management device 500 determines that there is a transmission problem in the multi-core fiber optic link. By controlling the programmable routing of the optical routing switch 300, the network management device 500 can reconfigure the connection ports of the first optical channel transmission device 110 and the first fan-in / fan-out device 210, so that the mapping relationship between the first optical channel transmission unit at the transmitting end and the second optical channel transmission unit at the receiving end is restored to the state before emergency repair splicing, thereby improving the reliability and stability of the fiber optic communication network.

[0059] In one exemplary embodiment, such as Figure 3 As shown, a fusion splicing control method for multi-core optical fiber links is provided, which is applied to... Figure 2 The following steps are used as an example of a multi-core fiber optic link, including steps 302 to 308. Wherein:

[0060] S302: After the multi-core fiber optic link fusion splicing is completed, obtain the initial connection relationship between the first optical channel transmission unit of the multi-core fiber optic link transmitter and the second optical channel transmission unit of the multi-core fiber optic link receiver.

[0061] S304: Sequentially control the operation of each first optical channel transmission unit, and obtain the current input power value detected by the corresponding second optical channel transmission unit according to the initial connection relationship.

[0062] S306: If it is determined that the multi-core fiber optic link does not meet the power requirements based on the current input power value, the connection port between the first optical channel transmission unit and the fan-in / fan-out device is adjusted through the optical routing switch, and the current candidate connection relationship is re-acquired.

[0063] S308: Return to the steps of sequentially controlling the operation of each first optical channel transmission unit, and continue to execute until the multi-core fiber link meets the power requirement conditions, then stop and re-fusion the multi-core fiber link according to the current candidate connection relationship.

[0064] Optionally, after the multi-core fiber optic link is spliced, the network management device records the connection mapping relationship between the first optical channel transmission unit at the transmitting end and the second optical channel transmission unit at the receiving end. Then, the network management device activates the first optical channel transmission units one by one, with only one transmission unit operating at a time, and detects the input power value at the receiving end through the corresponding second optical channel transmission unit. If the power value of a certain fiber core does not meet the requirements, the connection port is dynamically adjusted through the optical routing switch, and the current input power value detected by the corresponding second optical channel transmission unit is re-acquired until the power values ​​of all fiber cores meet the requirements. The candidate connection relationship at this point is the optimal configuration. Based on the final optimal configuration, the multi-core fiber optic link is re-sponsored, restoring the state before splicing.

[0065] In the aforementioned fusion splicing control method for multi-core fiber optic links, after the fusion splicing of the multi-core fiber optic link is completed, the initial connection relationship between the first optical channel transmission unit at the transmitting end of the multi-core fiber optic link and the second optical channel transmission unit at the receiving end of the multi-core fiber optic link is obtained. Each first optical channel transmission unit is then controlled sequentially. Based on the initial connection relationship, the current input power value detected by the corresponding second optical channel transmission unit is obtained. If the multi-core fiber optic link does not meet the power requirement based on the current input power value, the connection ports between the first optical channel transmission unit and the fan-in / fan-out devices are adjusted via an optical routing switch. The current candidate connection relationship is then re-obtained, and the process of sequentially controlling each first optical channel transmission unit is repeated until the multi-core fiber optic link meets the power requirement. The multi-core fiber optic link is then re-fused based on the current candidate connection relationship. This ensures accurate connection between the transmitting and receiving ends of the multi-core fiber optic link, achieves precise alignment of the fiber core sequence, improves the fusion splicing efficiency of the multi-core fiber, thereby enhancing the reliability and stability of the fiber optic communication network and effectively guaranteeing the accuracy and integrity of signal transmission.

[0066] In an exemplary embodiment, the process of determining that a multi-core fiber optic link does not meet the power requirement based on the current input power value includes: acquiring the historical power record of the multi-core fiber optic link before splicing; the historical power record includes the historical input power value of each second optical channel transmission unit; and determining that the multi-core fiber optic link does not meet the power requirement when the current input power does not match the historical input power value.

[0067] Optionally, the network management device will record the historical input power value of the second optical channel transmission unit in real time. After the fusion splicing is completed, the network management device will obtain the current input power value of each second optical channel transmission unit and compare it with the corresponding data in the historical record. By comparing the historical data, it can quickly determine whether the fusion splicing has caused the fiber core performance to degrade. If the current power does not match the historical power value, it will be determined that the multi-core fiber link does not meet the power requirements.

[0068] In this embodiment, by acquiring the historical power record of the multi-core fiber link before splicing, it is determined that the multi-core fiber link does not meet the power requirement when the current input power does not match the historical input power value. This can accurately determine whether the fiber core sequence is aligned, thereby avoiding the service cross-core problem caused by the misalignment of the fiber core sequence during splicing, and improving the reliability and stability of the fiber optic communication network.

[0069] In an exemplary embodiment, the optical routing switch includes multiple programmable routing options; the step of adjusting the connection port between the first optical channel transmission unit and the fan-in / fan-out device through the optical routing switch includes: adjusting the programmable routing options in the optical routing switch to adjust the connection port between the first optical channel transmission unit and the fan-in / fan-out device.

[0070] Optionally, the optical routing switch includes multiple programmable routing modules. Each module can control the on / off switching of the optical path through electrical signals. The network management device sends control commands to the optical routing switch to specify the programmable routing module to be switched and adjust the connection ports between the first optical channel transmission unit and the fan-in / fan-out device.

[0071] In this embodiment, by adjusting the programmable routing in the optical routing switch to adjust the connection ports between the first optical channel transmission unit and the fan-in / fan-out devices, the fiber core sequence can be precisely aligned, thereby improving the reliability and stability of the optical fiber communication network and effectively ensuring the accuracy and integrity of signal transmission.

[0072] In an exemplary embodiment, the method further includes: when a multi-core fiber optic link needs to be repaired by fusion splicing, performing fusion splicing on the multi-core fiber based on the outer edge characteristics of the multi-core fiber in the multi-core fiber optic link.

[0073] Optionally, when a multi-core fiber optic link needs to be repaired by fusion splicing, the multi-core fiber optic link can be spliced ​​based on its lateral characteristics, without considering cross-linking issues at the fiber optic link level, thus ensuring rapid splicing of the multi-core fiber optic link.

[0074] In this embodiment, when a multi-core fiber optic link needs to be repaired by fusion splicing, the fusion splicing process of the multi-core fiber optic link can be improved by performing fusion splicing on the multi-core fiber optic link based on the outer edge characteristics of the multi-core fiber optic link.

[0075] In one exemplary embodiment, such as Figure 4 As shown, a fusion splicing control method for a multi-core optical fiber link is provided, which includes the following steps:

[0076] S402: In the event that a multi-core fiber optic link requires emergency repair by fusion splicing, the multi-core fiber optic link is spliced ​​based on the outer edge characteristics of the multi-core fiber optic link.

[0077] S404: After the multi-core fiber optic link fusion splicing is completed, obtain the initial connection relationship between the first optical channel transmission unit of the multi-core fiber optic link transmitter and the second optical channel transmission unit of the multi-core fiber optic link receiver.

[0078] S406: Sequentially control the operation of each first optical channel transmission unit, and obtain the current input power value detected by the corresponding second optical channel transmission unit according to the initial connection relationship.

[0079] S408: Obtain the historical power record of the multi-core fiber optic link before splicing; the historical power record includes the historical input power value of each second optical channel transmission unit; if the current input power does not match the historical input power value, determine that the multi-core fiber optic link does not meet the power requirement.

[0080] S410: Adjust the programmable routing in the optical routing switch to adjust the connection port between the first optical channel transmission unit and the fan-in / fan-out device, and reacquire the current candidate connection relationship.

[0081] S412: Return to the steps of sequentially controlling the operation of each first optical channel transmission unit, and continue to execute until the multi-core fiber link meets the power requirement conditions, then stop and re-fusion the multi-core fiber link according to the current candidate connection relationship.

[0082] In this embodiment, after the multi-core fiber optic link fusion splicing is completed, the initial connection relationship between the first optical channel transmission unit at the transmitter end of the multi-core fiber optic link and the second optical channel transmission unit at the receiver end of the multi-core fiber optic link is obtained. Each first optical channel transmission unit is controlled sequentially, and the current input power value detected by the corresponding second optical channel transmission unit is obtained based on the initial connection relationship. If the multi-core fiber optic link does not meet the power requirement based on the current input power value, the connection ports between the first optical channel transmission unit and the fan-in / fan-out devices are adjusted via an optical routing switch, and the current candidate connection relationship is re-obtained. The process of sequentially controlling the operation of each first optical channel transmission unit is returned and continued until the multi-core fiber optic link meets the power requirement. The multi-core fiber optic link is then re-fused based on the current candidate connection relationship. This ensures accurate connection between the transmitter and receiver ends of the multi-core fiber optic link, achieves precise alignment of the fiber core sequence, improves the fusion efficiency of the multi-core fiber, thereby enhancing the reliability and stability of the optical fiber communication network and effectively guaranteeing the accuracy and integrity of signal transmission.

[0083] It should be understood that although the steps in the flowcharts of the above embodiments are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the above embodiments may include multiple steps or multiple stages. These steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the steps or stages in other steps. It is understood that the steps in different embodiments can be freely combined as needed, and all non-contradictory solutions formed by such combinations are within the scope of protection of this application.

[0084] Based on the same inventive concept, this application also provides a fusion control device for a multi-core optical fiber link to implement the fusion control method for the multi-core optical fiber link described above. The solution provided by this device is similar to the solution described in the above method. Therefore, the specific limitations of one or more embodiments of the fusion control device for multi-core optical fiber links provided below can be found in the limitations of the fusion control method for multi-core optical fiber links described above, and will not be repeated here.

[0085] In one exemplary embodiment, such as Figure 5 As shown, a fusion splicing control device for a multi-core fiber optic link is provided, comprising: a connection acquisition module 10, a power acquisition module 20, a port adjustment module 30, and a link fusion splicing module 40, wherein:

[0086] The connection acquisition module 10 is used to acquire the initial connection relationship between the first optical channel transmission unit of the multi-core optical fiber link transmitter and the second optical channel transmission unit of the multi-core optical fiber link receiver after the multi-core optical fiber link splicing is completed.

[0087] The power acquisition module 20 is used to control the operation of each first optical channel transmission unit in sequence, and to acquire the current input power value detected by the corresponding second optical channel transmission unit according to the initial connection relationship.

[0088] The port adjustment module 30 is used to adjust the connection port between the first optical channel transmission unit and the fan-in / fan-out device through an optical routing switch when it is determined that the multi-core optical fiber link does not meet the power requirements based on the current input power value, and to reacquire the current candidate connection relationship.

[0089] The link splicing module 40 is used to return to the steps of sequentially controlling the operation of each first optical channel transmission unit and continue to execute until the multi-core optical fiber link meets the power requirement conditions, and then stop and re-splice the multi-core optical fiber link according to the current candidate connection relationship.

[0090] In an exemplary embodiment, the port adjustment module 30 is further configured to acquire the historical power record of the multi-core fiber optic link before splicing; the historical power record includes the historical input power value of each second optical channel transmission unit; if the current input power does not match the historical input power value, it is determined that the multi-core fiber optic link does not meet the power requirement condition.

[0091] In one exemplary embodiment, the optical routing switch includes multiple programmable routing options; the port adjustment module 30 is also used to adjust the programmable routing options in the optical routing switch to adjust the connection port between the first optical channel transmission unit and the fan-in / fan-out device.

[0092] In an exemplary embodiment, the connection acquisition module 10 is further configured to perform fusion splicing on the multi-core optical fiber based on the outer edge characteristics of the multi-core optical fiber in the multi-core optical fiber link when the multi-core optical fiber link needs to be spliced ​​for emergency repair.

[0093] Each module in the aforementioned multi-core fiber optic link fusion splicing control device can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in the processor of a computer device in hardware form or independent of it, or stored in the memory of a computer device in software form, so that the processor can call and execute the corresponding operations of each module.

[0094] In one exemplary embodiment, a computer device is provided, which may be a terminal, and its internal structure diagram may be as follows: Figure 6As shown, the computer device includes a processor, memory, input / output interfaces, a communication interface, a display unit, and an input device. The processor, memory, and input / output interfaces are connected via a system bus, and the communication interface, display unit, and input device are also connected to the system bus via the input / output interfaces. The processor provides computing and control capabilities. The memory includes non-volatile storage media and internal memory. The non-volatile storage media stores the operating system and computer programs. The internal memory provides an environment for the operation of the operating system and computer programs stored in the non-volatile storage media. The input / output interfaces are used for exchanging information between the processor and external devices. The communication interface is used for wired or wireless communication with external terminals; wireless communication can be achieved through Wi-Fi, mobile cellular networks, Near Field Communication (NFC), or other technologies. When executed by the processor, the computer program implements a fusion splicing control method for a multi-core fiber optic link. The display unit is used to form a visually visible image and can be a display screen, a projection device, or a virtual reality imaging device. The display screen can be an LCD screen or an e-ink screen. The input device of the computer device can be a touch layer covering the display screen, or buttons, trackballs, or touchpads set on the casing of the computer device, or external keyboards, touchpads, or mice, etc.

[0095] Those skilled in the art will understand that Figure 6 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than shown in the figure, or combine certain components, or have a different component arrangement.

[0096] In an exemplary embodiment, a computer device is provided, including a memory and a processor. The memory stores a computer program, and the processor executes the computer program to perform the following steps: when a multi-core fiber optic link fusion splicing is completed, obtaining the initial connection relationship between a first optical channel transmission unit at the transmitter end of the multi-core fiber optic link and a second optical channel transmission unit at the receiver end of the multi-core fiber optic link; sequentially controlling the operation of each first optical channel transmission unit, and obtaining the current input power value detected by the corresponding second optical channel transmission unit according to the initial connection relationship; if it is determined that the multi-core fiber optic link does not meet the power requirement condition according to the current input power value, adjusting the connection ports between the first optical channel transmission unit and the fan-in / fan-out device through an optical routing switch, and re-obtaining the current candidate connection relationship; returning to the step of sequentially controlling the operation of each first optical channel transmission unit, and continuing to execute until the multi-core fiber optic link meets the power requirement condition, and then re-fusing the multi-core fiber optic link according to the current candidate connection relationship.

[0097] In one embodiment, the process of determining that a multi-core fiber optic link does not meet power requirements based on the current input power value when the processor executes a computer program includes: acquiring historical power records of the multi-core fiber optic link before splicing; the historical power records include historical input power values ​​of each second optical channel transmission unit; and determining that the multi-core fiber optic link does not meet power requirements when the current input power does not match the historical input power values.

[0098] In one embodiment, the optical routing switch includes multiple programmable routing options; the process of adjusting the connection port between the first optical channel transmission unit and the fan-in / fan-out device via the optical routing switch when the processor executes a computer program includes: adjusting the programmable routing options in the optical routing switch to adjust the connection port between the first optical channel transmission unit and the fan-in / fan-out device.

[0099] In one embodiment, when the processor executes the computer program, it also performs the following steps: when a multi-core fiber optic link needs to be repaired by fusion splicing, the multi-core fiber optic link is spliced ​​based on the outer edge characteristics of the multi-core fiber optic link.

[0100] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, it performs the following steps: after the multi-core fiber optic link splicing is completed, the initial connection relationship between the first optical channel transmission unit at the transmitter end of the multi-core fiber optic link and the second optical channel transmission unit at the receiver end of the multi-core fiber optic link is obtained; the operation of each first optical channel transmission unit is controlled sequentially, and the current input power value detected by the corresponding second optical channel transmission unit is obtained according to the initial connection relationship; if it is determined that the multi-core fiber optic link does not meet the power requirement condition according to the current input power value, the connection ports between the first optical channel transmission unit and the fan-in / fan-out device are adjusted through an optical routing switch, and the current candidate connection relationship is obtained again; the steps of sequentially controlling the operation of each first optical channel transmission unit are returned, and execution continues until the multi-core fiber optic link meets the power requirement condition, and then the multi-core fiber optic link is re-spun according to the current candidate connection relationship.

[0101] In one embodiment, the process of determining that a multi-core fiber optic link does not meet power requirements based on the current input power value when the computer program is executed by the processor includes: acquiring historical power records of the multi-core fiber optic link before splicing; the historical power records include historical input power values ​​of each second optical channel transmission unit; and determining that the multi-core fiber optic link does not meet power requirements when the current input power does not match the historical input power values.

[0102] In one embodiment, the optical routing switch includes multiple programmable routing options; when a computer program is executed by a processor, the adjustment of the connection port between the first optical channel transmission unit and the fan-in / fan-out device via the optical routing switch includes: adjusting the programmable routing options in the optical routing switch to adjust the connection port between the first optical channel transmission unit and the fan-in / fan-out device.

[0103] In one embodiment, when the computer program is executed by the processor, it further performs the following steps: when a multi-core fiber optic link needs to be repaired by fusion splicing, the multi-core fiber optic link is spliced ​​based on the outer edge characteristics of the multi-core fiber optic link.

[0104] In one embodiment, a computer program product is provided, including a computer program that, when executed by a processor, performs the following steps: When a multi-core fiber optic link fusion splicing is completed, obtain the initial connection relationship between a first optical channel transmission unit at the transmitter end of the multi-core fiber optic link and a second optical channel transmission unit at the receiver end of the multi-core fiber optic link; sequentially control the operation of each first optical channel transmission unit and obtain the current input power value detected by the corresponding second optical channel transmission unit according to the initial connection relationship; if it is determined that the multi-core fiber optic link does not meet the power requirement condition based on the current input power value, adjust the connection ports between the first optical channel transmission unit and the fan-in / fan-out device through an optical routing switch, and re-obtain the current candidate connection relationship; return to the step of sequentially controlling the operation of each first optical channel transmission unit and continue execution until the multi-core fiber optic link meets the power requirement condition, and then re-fuse the multi-core fiber optic link according to the current candidate connection relationship.

[0105] In one embodiment, the process of determining that a multi-core fiber optic link does not meet power requirements based on the current input power value when the computer program is executed by the processor includes: acquiring historical power records of the multi-core fiber optic link before splicing; the historical power records include historical input power values ​​of each second optical channel transmission unit; and determining that the multi-core fiber optic link does not meet power requirements when the current input power does not match the historical input power values.

[0106] In one embodiment, the optical routing switch includes multiple programmable routing options; when a computer program is executed by a processor, the adjustment of the connection port between the first optical channel transmission unit and the fan-in / fan-out device via the optical routing switch includes: adjusting the programmable routing options in the optical routing switch to adjust the connection port between the first optical channel transmission unit and the fan-in / fan-out device.

[0107] In one embodiment, when the computer program is executed by the processor, it further performs the following steps: when a multi-core fiber optic link needs to be repaired by fusion splicing, the multi-core fiber optic link is spliced ​​based on the outer edge characteristics of the multi-core fiber optic link.

[0108] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium, and when executed, it can include the processes of the embodiments of the above methods. Any references to memory, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile memory and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM). The databases involved in the embodiments provided in this application may include at least one type of relational database and non-relational database. Non-relational databases may include, but are not limited to, blockchain-based distributed databases. The processors involved in the embodiments provided in this application may be general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, artificial intelligence (AI) processors, etc., and are not limited to these.

[0109] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this application.

[0110] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A multi-core optical fiber link, characterized in that, include: The optical channel transmission unit is fused with a multi-core optical fiber through fan-in and fan-out devices and is used to transmit optical signals; The fan-in / fan-out device has one end fused to the multi-core optical fiber, which is used to connect the optical channel transmission unit and the multi-core optical fiber. An optical routing switch, with one end connected to the optical channel transmission unit and the other end connected to the fan-in / fan-out device, is used to adjust the connection port between the optical channel transmission unit and the fan-in / fan-out device.

2. The multi-core optical fiber link according to claim 1, characterized in that, The optical channel transmission unit includes a first optical channel transmission device located at the transmitting end of the multi-core optical fiber link and a second optical channel transmission device located at the receiving end of the multi-core optical fiber link; the number of the first optical channel transmission device and the second optical channel transmission device is the same as the number of fiber cores of the multi-core optical fiber.

3. The multi-core optical fiber link according to claim 2, characterized in that, The fan-in / fan-out device includes a first fan-in / fan-out device located at the transmitting end and a second fan-in / fan-out device located at the receiving end; both the first and second fan-in / fan-out devices include the same number of ports as the fiber cores; the first optical channel transmission device is connected to the first fan-in / fan-out device through different ports; the second optical channel transmission device is connected to the second fan-in / fan-out device through different ports.

4. The multi-core optical fiber link according to claim 3, characterized in that, The optical routing switch includes multiple programmable routing options; the first optical channel transmission device is connected to different ports of the first fan-in / fan-out device through different programmable routing options; the second optical channel transmission device is connected to different ports of the second fan-in / fan-out device through different programmable routing options.

5. The multi-core optical fiber link according to claim 4, characterized in that, Also includes: The network management device is used to obtain the input power value of the second optical channel transmission device, and is also used to adjust the programmable routing in the optical routing switch to adjust the connection port between the first optical channel transmission unit and the fan-in / fan-out device when it is determined from the input power value that the multi-core optical fiber link does not meet the power requirements.

6. A fusion splicing control method for a multi-core optical fiber link, characterized in that, Applied to a multi-core fiber optic link as described in any one of claims 1 to 5; the method includes: After the multi-core fiber optic link splicing is completed, the initial connection relationship between the first optical channel transmission unit of the multi-core fiber optic link transmitter and the second optical channel transmission unit of the multi-core fiber optic link receiver is obtained. The operation of each first optical channel transmission unit is controlled sequentially, and the current input power value detected by the corresponding second optical channel transmission unit is obtained according to the initial connection relationship. If it is determined that the multi-core fiber optic link does not meet the power requirements based on the current input power value, the connection port between the first optical channel transmission unit and the fan-in / fan-out device is adjusted by the optical routing switch, and the current candidate connection relationship is reacquired. Return to the steps of sequentially controlling the operation of each first optical channel transmission unit and continue execution until the multi-core fiber link meets the power requirement condition, then stop and re-fusion the multi-core fiber link according to the current candidate connection relationship.

7. The method according to claim 6, characterized in that, The process of determining that the multi-core fiber optic link does not meet the power requirement based on the current input power value includes: Obtain the historical power record of the multi-core optical fiber link before fusion splicing; the historical power record includes the historical input power value of each second optical channel transmission unit; If the current input power does not match the historical input power value, it is determined that the multi-core fiber optic link does not meet the power requirement.

8. The method according to claim 6, characterized in that, The optical routing switch includes multiple programmable routing options; adjusting the connection ports between the first optical channel transmission unit and the fan-in / fan-out devices via the optical routing switch includes: Adjust the programmable routing in the optical routing switch to adjust the connection port between the first optical channel transmission unit and the fan-in / fan-out device.

9. The method according to claim 6, characterized in that, The method further includes: In the event that the multi-core fiber optic link requires emergency repair by fusion splicing, the multi-core fiber optic link is spliced ​​based on the outer edge characteristics of the multi-core fiber optic link.

10. A computer device comprising a memory and a processor, wherein the memory stores a computer program, characterized in that, When the processor executes the computer program, it implements the steps of the method according to any one of claims 6 to 9.

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