Systems, methods, and related apparatuses for coupling of multi-channel fiber arrays to waveguides

Abstract

The application discloses a kind of multi-channel fiber array and waveguide coupling system, method and related equipment, the method includes: using first group infrared laser to scan waveguide coupling surface on printed circuit board, obtains first plane data;Using second group infrared laser to scan the coupling surface of multi-channel fiber array, obtains second plane data;According to first plane data and second plane data, determine plane angle;Based on plane angle, using coupling algorithm, generate adjustment coupling strategy;Adjustment coupling strategy is executed, and multi-channel fiber array and waveguide are coupled adjustment. Realize by infrared laser scanning two to be coupled planes, obtain plane data calculation plane angle, to improve the accuracy of plane angle, to improve the efficiency of coupling.

Description

Technical Field

[0001] This invention relates to the field of optical module packaging, and more particularly to a coupling system, method and related equipment for a multi-channel fiber array and waveguide. Background Technology

[0002] In modern communication technology, optical fiber communication has become the primary transmission medium due to its advantages such as high bandwidth, low loss, and strong anti-interference capability. As a key component in optical fiber communication systems, the performance of multi-channel fiber arrays directly affects the stability and transmission efficiency of the entire system. The coupling quality between the multi-channel fiber array and the waveguide is one of the key factors affecting transmission efficiency.

[0003] Currently, the core diameter of multi-channel fiber arrays is only 9 micrometers, requiring extremely high precision in the angular direction, X-axis, and Y-axis when coupled with waveguides. Existing technologies mainly rely on image vision recognition systems to ensure planar angular accuracy, typically achieving only ±0.5 degrees. This low angular accuracy limits coupling efficiency, becoming a bottleneck restricting the performance improvement of fiber optic communication systems.

[0004] Therefore, there is an urgent need for a new technical solution to improve the accuracy of the planar angle between the multi-channel fiber array and the waveguide coupling surface, thereby improving the coupling efficiency. Summary of the Invention

[0005] This invention provides a coupling system, method, computer device, and storage medium for a multi-channel fiber array and a waveguide, to improve the coupling efficiency of the multi-channel fiber array and the waveguide.

[0006] To address the aforementioned technical problems, this application provides a coupling system for a multi-channel fiber optic array and waveguide, including an adjustment frame, a printed circuit board clamp, an infrared laser scanning device, and a control system. The adjustment frame, the infrared laser scanning device, and the control system are electrically connected.

[0007] The adjustment frame includes clamps for fixing the multi-channel fiber array and for adjusting the position of the multi-channel fiber array.

[0008] The printed circuit board clamp includes a printed circuit board, a base limiting groove, and a photoelectric conversion chip. The base limiting groove is used to fix the printed circuit board, and the photoelectric conversion chip is mounted on the printed circuit board. The photoelectric conversion chip includes a waveguide.

[0009] The printed circuit board clamping includes a waveguide coupling surface, which can be the surface of the printed circuit board facing the adjustment frame or the surface of the photoelectric conversion chip facing the adjustment frame. Preferably, the waveguide coupling surface is the surface of the photoelectric conversion chip facing the adjustment frame. The infrared laser scanning device is used to scan the waveguide coupling surface of the printed circuit board clamping and simultaneously scan the coupling surface of the multi-channel fiber array to obtain planar scanning data of the two coupling surfaces, and send the planar scanning data to the control system.

[0010] The control system receives planar scanning data sent by the infrared laser scanning device, generates an adjustment coupling strategy, and controls the adjustment frame to adjust and couple the multi-channel fiber array based on the adjustment coupling strategy.

[0011] Optionally, the control system includes a signal receiving unit, a computing unit, a strategy generation unit, and an adjustment and control unit;

[0012] The signal receiving unit is used to receive planar scanning data sent by the infrared laser scanning device;

[0013] The calculation unit is used to calculate the angle based on the received planar scan data to obtain the planar angle;

[0014] The strategy generation unit generates an adjustment coupling strategy based on the plane angle;

[0015] The adjustment and control unit uses the adjustment coupling strategy to control the adjustment frame to adjust and couple the multi-channel fiber array.

[0016] Optionally, the infrared laser scanning device includes at least two sets of infrared lasers, the first set of infrared lasers being used to scan the waveguide coupling surface clamped on the printed circuit board, and the second set of infrared lasers being used to scan the coupling surface of the multi-channel fiber array.

[0017] To address the aforementioned technical problems, embodiments of this application also provide a coupling method between a multi-channel fiber array and a waveguide, comprising:

[0018] The first set of infrared lasers is used to scan the waveguide coupling surface of the printed circuit board to obtain the first planar data;

[0019] The coupling surface of the multi-channel fiber array is scanned using a second set of infrared lasers to obtain second planar data;

[0020] Determine the included angle of the planes based on the first plane data and the second plane data;

[0021] Based on the plane angle, a coupling algorithm is used to generate an adjustment coupling strategy;

[0022] The coupling adjustment strategy is executed to adjust the coupling between the multi-channel fiber array and the waveguide.

[0023] Optionally, the step of using a first set of infrared lasers to scan the waveguide coupling surface of the printed circuit board to obtain the first planar data includes:

[0024] The origin of the coordinate system is set as M0(X0, Y0, Z0) based on the first group of infrared lasers.

[0025] The waveguide coupling on the printed circuit board is scanned, and the coordinates M of K points are recorded with the origin of the coordinate system as a reference. n (X n Y n Z n ), n∈[1,K], and n is a positive integer;

[0026] Based on the coordinates of the K points, a plane equation is calculated and used as the first plane data.

[0027] Optionally, the coordinates M of K points are recorded with reference to the origin of the coordinate system. n (X n Y n Z n )include:

[0028] The scanned area is gridded, and a point is randomly selected in each grid as the base point;

[0029] Based on the geometric distribution of the scanned area, select K target points from the base points;

[0030] Scan the target points and, with the origin as a reference, record the coordinates M of K points. n (X n Y n Z n ).

[0031] Optionally, the step of generating an adjustment coupling strategy based on the plane angle using a coupling algorithm includes:

[0032] Based on the plane angle information, a first direction adjustment method is determined, such that the coupling surface of the multi-channel fiber array and the waveguide coupling surface are parallel in a second direction perpendicular to the first direction; the multi-channel fiber array is rotated in a plane parallel to the second direction to obtain the position parameters of the multi-channel fiber array in the adjustment frame when the optical power at the left channel endpoint is at its maximum, and...

[0033] Obtain the position parameters of the multi-channel fiber array in the adjustment frame when the optical power at the right channel endpoint of the multi-channel fiber array is at its maximum.

[0034] The rotation angle is calculated based on the position parameters, and the rotation angle is used as the compensation angle.

[0035] The first direction adjustment method and the compensation angle are used as the adjustment coupling strategy.

[0036] To address the aforementioned technical problems, this application also provides a computer device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the steps of the above-described coupling method between a multi-channel fiber array and a waveguide.

[0037] To address the aforementioned technical problems, this application also provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the steps of the above-described coupling method between a multi-channel fiber array and a waveguide.

[0038] The coupling system, method, computer equipment, and storage medium for a multi-channel fiber optic array and waveguide provided in this invention employs a first set of infrared lasers to scan the coupling surface of the waveguide mounted on a printed circuit board to obtain first planar data; a second set of infrared lasers scans the coupling surface of the multi-channel fiber optic array to obtain second planar data; based on the first and second planar data, the plane angle is determined; based on the plane angle, a coupling algorithm is used to generate an adjustment coupling strategy; and the adjustment coupling strategy is executed to adjust the coupling between the multi-channel fiber optic array and the waveguide. This method achieves the goal of obtaining planar angles by scanning two planes to be coupled with infrared lasers, thereby improving the accuracy of the planar angles and thus enhancing coupling efficiency. Attached Figure Description

[0039] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0040] Figure 1 This is a schematic diagram of the coupling system of the multi-channel fiber array and waveguide of this application;

[0041] Figure 2 This is a flowchart of an embodiment of the coupling method between a multi-channel fiber array and a waveguide in this application;

[0042] Figure 3 This is a side view of the coupling surface of the second group of infrared lasers scanning multichannel fiber arrays in this application;

[0043] Figure 4 This is a top view schematic diagram of an embodiment of a coupling system of a multi-channel fiber array and a waveguide according to this application;

[0044] Figure 5 This is a side view schematic diagram of an embodiment of the coupling system of a multi-channel fiber array and waveguide according to this application;

[0045] Figure 6 This is a schematic diagram of the structure of one embodiment of the computer device according to this application. Detailed Implementation

[0046] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application, are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0047] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0048] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0049] The following is an explanation of some technical terms used in this embodiment:

[0050] Printed circuit boards, also known as printed circuit boards or printed circuit boards, are important electronic components. They serve as the support for electronic components and provide the circuit connections for electronic components.

[0051] A multi-channel fiber optic array (FA) is a fiber optic communication component consisting of multiple optical fibers arranged in an array to achieve high-density fiber optic connections and data transmission. The coupling of a multi-channel FA with a waveguide requires extremely high precision in the angle, X-direction, and Y-direction.

[0052] An infrared laser is a laser device that emits infrared light (wavelength range of approximately 700 nanometers to 1 millimeter).

[0053] An optical power meter is an instrument used to measure optical power or intensity, and it is widely used in fields such as fiber optic communication, scientific research, medical equipment, and industrial inspection. It can measure optical power ranging from microwatts to watts, covering the entire spectral range from ultraviolet and visible light to infrared.

[0054] Please see Figure 1 , Figure 1 This diagram illustrates the structure of a multi-channel fiber optic array and waveguide coupling system provided in an embodiment of the present invention. The system includes an adjustment frame, a printed circuit board clamp, an infrared laser scanning device, and a control system. The adjustment frame, the infrared laser scanning device, and the control system are electrically connected.

[0055] The adjustment frame includes grippers for fixing the multi-channel fiber array and for adjusting the position of the multi-channel fiber array.

[0056] The printed circuit board clamp includes a printed circuit board, a base limiting groove, and a photoelectric conversion chip. The base limiting groove is used to fix the printed circuit board, and the photoelectric conversion chip is mounted on the printed circuit board. The photoelectric conversion chip includes a waveguide.

[0057] The printed circuit board clamping includes a waveguide coupling surface, which can be the surface of the printed circuit board facing the adjustment frame or the surface of the photoelectric conversion chip facing the adjustment frame. Preferably, the waveguide coupling surface is the surface of the photoelectric conversion chip facing the adjustment frame. The infrared laser scanning device is used to scan the waveguide coupling surface on the printed circuit board and simultaneously scan the coupling surface of the multi-channel single-mode fiber array to obtain planar scanning data of the two coupling surfaces, and then send the planar scanning data to the control system.

[0058] The control system receives planar scanning data sent by the infrared laser scanning device and generates an adjustment coupling strategy. Based on the adjustment coupling strategy, the control system controls the adjustment frame to adjust the coupling of the multi-channel fiber array.

[0059] The infrared laser scanning device includes at least two sets of infrared lasers. The first set of infrared lasers is used for upward scanning of the waveguide coupling surface of the printed circuit board mounting, and the second set of infrared lasers is used for downward scanning of the coupling surface of the multi-channel fiber array. Alternatively, the first set of infrared lasers is used for downward scanning of the waveguide coupling surface of the printed circuit board mounting, and the second set of infrared lasers is used for upward scanning of the coupling surface of the multi-channel fiber array. The number of infrared lasers in each set can be limited according to actual needs, for example, one or more.

[0060] Optionally, the coupling system between the multi-channel fiber array and the waveguide also includes an optical power meter, which can receive the light transmitted through the multi-channel fiber array and monitor the magnitude of the received light to determine the offset.

[0061] Preferably, in this embodiment, the control system includes a signal receiving unit, a calculation unit, a strategy generation unit, and an adjustment and control unit;

[0062] The signal receiving unit is used to receive planar scanning data sent by the infrared laser scanning device to the control system;

[0063] The calculation unit is used to calculate the angle based on the received planar scan data to obtain the planar angle;

[0064] The strategy generation unit generates an adjustment coupling strategy based on the plane angle;

[0065] The adjustment and control unit uses an adjustment coupling strategy to control the adjustment frame to adjust and couple the multi-channel fiber optic array.

[0066] Preferably, the adjustment frame in this embodiment is a six-dimensional automatic adjustment frame, which is adjustable in six dimensions (X, Y, Z, Qx, Qy, Qz) and has high axis precision, which is beneficial to improving coupling efficiency.

[0067] In this embodiment, the two surfaces to be coupled are clamped and fixed by an adjustment frame and a printed circuit board. Then, an infrared laser scanning device is used to scan and obtain the planar data of each surface. Based on the two planar data, a coupling strategy is generated and the coupling is adjusted. The accuracy of the planar angle is improved by using infrared laser scanning, which helps to improve the coupling efficiency.

[0068] The modules in the aforementioned multi-channel fiber array and waveguide coupling system can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in hardware within or independently of the processor in a computer device, or stored in software within the computer device's memory, allowing the processor to invoke and execute the corresponding operations of each module.

[0069] Please see Figure 2 , Figure 2This invention illustrates a coupling method between a multi-channel fiber optic array and a waveguide, as provided in an embodiment of the present invention. This method is applied in a coupling system between a multi-channel fiber optic array and a waveguide, and is described in detail below:

[0070] S201: The first set of infrared lasers is used to scan the waveguide coupling surface on the printed circuit board to obtain the first planar data.

[0071] Specifically, a coordinate origin is selected to construct a spatial coordinate system. Then, the waveguide coupling surface of the printed circuit board is scanned by the first set of infrared lasers to obtain the first plane data, which can be represented by a plane equation.

[0072] In one specific embodiment, the first set of infrared lasers is used to scan the waveguide coupling surface on the printed circuit board to obtain first planar data, including:

[0073] The origin of the coordinate system is set as M0(X0, Y0, Z0) based on the first group of infrared lasers.

[0074] Scan the waveguide coupling on the printed circuit board and record the coordinates M of K points with the origin as a reference. n (X n Y n Z n ), n∈[1,K], and n is a positive integer;

[0075] Based on the coordinates of K points, the plane equation is obtained by fitting and calculation, and the plane equation is used as the first plane data.

[0076] Preferably, setting the coordinate origin M0(X0, Y0, Z0) based on the first group of infrared lasers can be achieved by using the first group of infrared lasers as a reference and setting the center or other fixed position of the first group of infrared lasers as the coordinate origin M0(X0, Y0, Z0). In this embodiment, the infrared lasers are fixed targets, and using the infrared lasers as the origin ensures that the collected coordinates are more objective and accurate.

[0077] The value of K can be set according to actual needs, for example, it can be set to 10.

[0078] In one specific implementation, with the origin of the coordinate system as a reference, the coordinates M of K points are recorded respectively. n (X n Y n Z n )include:

[0079] The scanned area is gridded, and a point is randomly selected in each grid as the base point;

[0080] Based on the geometric distribution of the scanned area, select K target points from the base points;

[0081] Scan the target points and, with the origin as a reference, record the coordinates M of K points. n (X n Y n Z n ).

[0082] Specifically, to ensure the rationality of the selection of scanning points, this embodiment adopts a gridding method to avoid clustering, while considering the distribution of edge points and the scan area as a whole to select scanning points. This ensures the uniform distribution of scanning points, takes into account the geometric characteristics of the plane and actual working conditions, thereby improving the quality and accuracy of the scanning results.

[0083] S202: The coupling surface of the multi-channel fiber optic array is scanned using a second set of infrared lasers to obtain the second plane data.

[0084] like Figure 3 As shown, Figure 3 This is a side view of the coupling surface of the second group of infrared lasers scanning the multi-channel fiber array in this embodiment. The downward-facing infrared laser in the figure is a specific implementation of the second group of infrared lasers in this embodiment.

[0085] It should be noted that there is no necessary sequential relationship between steps S201 and S202, and they can be executed in parallel. No specific restrictions are made here.

[0086] S203: Determine the included angle of the planes based on the data of the first plane and the data of the second plane.

[0087] Specifically, the data for the first plane is recorded using the plane equation A1x+B1y+C1z+D1=0, and the data for the second plane is recorded using the plane equation A2x+B2y+C2z+D2=0. The angle between the two planes can be calculated using the normal vectors of the two plane equations.

[0088] S204: Based on the plane angle, a coupling algorithm is used to generate an adjustment coupling strategy.

[0089] In one specific implementation, based on the plane angle, a coupling algorithm is used to generate an adjustment coupling strategy, including:

[0090] Based on the ordinate of the plane angle, the first direction adjustment method is determined so that the coupling surface of the multi-channel single-mode fiber array and the waveguide coupling surface are parallel in a second direction that is perpendicular to the first direction.

[0091] To obtain the position parameters of the multi-channel single-mode fiber array in the adjustment frame when the optical power at the left channel endpoint is at its maximum, such as recording the coordinates (X1, Y1) of a certain point in the current multi-channel fiber array.

[0092] To obtain the position parameters of the multi-channel single-mode fiber array in the adjustment frame when the optical power at the right channel endpoint of the multi-channel fiber array is at its maximum, such as recording the coordinates (X2, Y2) of a certain point in the current multi-channel single-mode fiber array.

[0093] Based on the current coordinates (X1,Y1) and (X2,Y2), calculate the rotation angle Q of the multi-channel single-mode fiber array in the plane parallel to the second direction, and use the rotation angle Q as the compensation angle.

[0094] The first direction adjustment method and compensation angle are used as the adjustment coupling strategy.

[0095] like Figure 4 As shown, Figure 4 This is a schematic diagram of the reverse compensation angle in this embodiment.

[0096] In this embodiment, by first determining that the vertical direction is parallel and then adjusting the horizontal direction, it is beneficial to accurately calibrate the angle of the entire plane. Figure 5 This is a side view schematic diagram of an embodiment of the coupling system of a multi-channel fiber array and waveguide according to this application. The six-dimensional adjustment frame and the gripper hold the FA and adjust the position of the FA. The PCBA and the laser are fixed. The laser emits laser light. The laser light emitted by the laser is transmitted to the optical power meter through the FA. The optical power meter is used to monitor the received light magnitude. The computer and the host computer record the correspondence between the received light magnitude and the coordinates of the six-dimensional adjustment frame, and control the six-dimensional adjustment frame to rotate until both the innermost channel and the outermost channel are at their maximum values.

[0097] S205: Executes the adjustment coupling strategy to adjust the coupling between the multi-channel fiber array and the waveguide.

[0098] Specifically, by using optical power monitoring and adjusting the coupling strategy, the adjustment frame is used to adjust the first and second directions.

[0099] In this embodiment, a first set of infrared lasers scans the waveguide coupling surface clamped on the printed circuit board to obtain first planar data; a second set of infrared lasers scans the coupling surface of the multi-channel fiber array to obtain second planar data; based on the first and second planar data, the plane angle is determined; based on the plane angle, a coupling algorithm is used to generate an adjustment coupling strategy; the adjustment coupling strategy is executed to adjust the coupling between the multi-channel fiber array and the waveguide. This method achieves the goal of obtaining planar data and calculating the planar angle by scanning two planes to be coupled with infrared lasers, thereby improving the accuracy of the planar angle and thus enhancing coupling efficiency.

[0100] It should be understood that the sequence number of each step in the above embodiments does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0101] To address the aforementioned technical problems, embodiments of this application also provide a computer device. Please refer to [link / reference needed]. Figure 6 , Figure 6 This is a basic structural block diagram of the computer device in this embodiment.

[0102] The computer device 4 includes a memory 41, a processor 42, and a network interface 43 that are interconnected via a system bus. It should be noted that only the computer device 4 with components connected to the memory 41, processor 42, and network interface 43 is shown in the figure; however, it should be understood that it is not required to implement all the components shown, and more or fewer components can be implemented alternatively. Those skilled in the art will understand that the computer device described here is a device capable of automatically performing numerical calculations and / or information processing according to pre-set or stored instructions, and its hardware includes, but is not limited to, microprocessors, application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), digital signal processors (DSPs), embedded devices, etc.

[0103] The computer device can be a desktop computer, laptop, handheld computer, or cloud server, etc. The computer device can interact with the user via a keyboard, mouse, remote control, touchpad, or voice control.

[0104] The memory 41 includes at least one type of readable storage medium, including flash memory, hard disk, multimedia card, card-type memory (e.g., SD or D-interface display memory), random access memory (RAM), static random access memory (SRAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), programmable read-only memory (PROM), magnetic memory, disk, optical disk, etc. In some embodiments, the memory 41 may be an internal storage unit of the computer device 4, such as the hard disk or memory of the computer device 4. In other embodiments, the memory 41 may also be an external storage device of the computer device 4, such as a plug-in hard disk, smart media card (SMC), secure digital (SD) card, flash card, etc., equipped on the computer device 4. Of course, the memory 41 may also include both the internal storage unit and its external storage device of the computer device 4. In this embodiment, the memory 41 is typically used to store the operating system and various application software installed on the computer device 4, such as the program code of the coupling method of multi-channel fiber array and waveguide. In addition, the memory 41 can also be used to temporarily store various types of data that have been output or will be output.

[0105] In some embodiments, the processor 42 may be a central processing unit (CPU), controller, microcontroller, microprocessor, or other data processing chip. The processor 42 is typically used to control the overall operation of the computer device 4. In this embodiment, the processor 42 is used to run program code stored in the memory 41 or process data, for example, to run program code for a coupling method between a multi-channel fiber array and a waveguide.

[0106] The network interface 43 may include a wireless network interface or a wired network interface, which is typically used to establish communication connections between the computer device 4 and other electronic devices.

[0107] This application also provides another embodiment, namely, a computer-readable storage medium storing an interface display program that can be executed by at least one processor to cause the at least one processor to perform the steps of the multi-channel fiber array and waveguide coupling method described above.

[0108] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes several instructions to cause a terminal device (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0109] Obviously, the embodiments described above are only some embodiments of this application, not all embodiments. The accompanying drawings show preferred embodiments of this application, but do not limit the patent scope of this application. This application can be implemented in many different forms; rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure of this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this application's specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the scope of patent protection of this application.

Claims

1. A coupling system between a multi-channel fiber array and a waveguide, characterized in that, The system includes an adjustment frame, a printed circuit board clamp, an infrared laser scanning device, and a control system, wherein the adjustment frame, the infrared laser scanning device, and the control system are electrically connected; wherein, The adjustment frame includes clamps for fixing the multi-channel fiber array and for adjusting the position of the multi-channel fiber array. The printed circuit board clamp includes a printed circuit board, a base limiting groove, and a photoelectric conversion chip. The base limiting groove is used to fix the printed circuit board, and the photoelectric conversion chip is mounted on the printed circuit board. The photoelectric conversion chip includes a waveguide. The printed circuit board clamping device includes a waveguide coupling surface, which is either the surface of the printed circuit board facing the adjustment frame or the surface of the photoelectric conversion chip facing the adjustment frame. The infrared laser scanning device is used to scan the waveguide coupling surface of the printed circuit board clamping device and simultaneously scan the coupling surface of the multi-channel fiber array to obtain planar scanning data of the two coupling surfaces. The planar scanning data is then sent to the control system. The infrared laser scanning device includes at least two sets: a first set of infrared lasers is used to scan the waveguide coupling surface of the printed circuit board clamping device, and a second set of infrared lasers is used to scan the coupling surface of the multi-channel fiber array. The control system receives planar scanning data sent by the infrared laser scanning device, generates an adjustment coupling strategy, and controls the adjustment frame to adjust and couple the multi-channel fiber array based on the adjustment coupling strategy. The process of using a first set of infrared lasers to scan the waveguide coupling surface clamped on the printed circuit board to obtain first planar data includes: The origin of the coordinate system is set as M0 (X0, Y0, Z0) based on the first group of infrared lasers. Scan the waveguide coupling surface of the printed circuit board mounting, and record the coordinates M of K points respectively, using the coordinate origin as a reference. n (X) n Y n Z n ), n∈[1,K], and n is a positive integer; Based on the coordinates of the K points, a plane equation is calculated by fitting, and the plane equation is used as the first plane data. The control system receives planar scanning data sent by the infrared laser scanning device and generates an adjustment coupling strategy, including: The first plane data obtained by scanning the waveguide coupling surface of the printed circuit board with the first set of infrared lasers is recorded using the plane equation A1x+B1y+C1z+D1=0. The second plane data obtained by scanning the coupling surface of the multi-channel fiber array with the second set of infrared lasers is recorded using the plane equation A2x+B2y+C2z+D2=0. The angle between the two planes can be calculated using the normal vectors of the two plane equations, which is used as the plane angle. Based on the plane angle, a coupling algorithm is used to generate an adjustment coupling strategy.

2. The coupling system of multi-channel fiber array and waveguide as described in claim 1, characterized in that, The control system includes a signal receiving unit, a calculation unit, a strategy generation unit, and an adjustment and control unit; The signal receiving unit is used to receive planar scanning data sent by the infrared laser scanning device; The calculation unit is used to calculate the angle based on the received planar scan data to obtain the planar angle; The strategy generation unit generates an adjustment coupling strategy based on the plane angle; The adjustment and control unit uses the adjustment coupling strategy to control the adjustment frame to adjust and couple the multi-channel fiber array.

3. The coupling system of multi-channel fiber array and waveguide as described in claim 1, characterized in that, The infrared laser scanning device includes at least two sets of infrared lasers. The first set of infrared lasers is used to scan the waveguide coupling surface clamped on the printed circuit board, and the second set of infrared lasers is used to scan the coupling surface of the multi-channel fiber array.

4. A coupling method between a multi-channel fiber array and a waveguide, characterized in that, The method, applied to the coupling system of the multi-channel fiber array and waveguide according to any one of claims 1 to 3, comprises: The first set of infrared lasers is used to scan the waveguide coupling surface of the printed circuit board to obtain the first planar data; The coupling surface of the multi-channel fiber array is scanned using a second set of infrared lasers to obtain second planar data; Determine the included angle of the planes based on the first plane data and the second plane data; Based on the plane angle, a coupling algorithm is used to generate an adjustment coupling strategy; The coupling adjustment strategy is executed to adjust the coupling between the multi-channel fiber array and the waveguide.

5. The coupling method between the multi-channel fiber array and the waveguide as described in claim 4, characterized in that, The coordinates M of K points are recorded with reference to the origin. n (X) n Y n Z n )include: The scanned area is gridded, and a point is randomly selected in each grid as the base point; Based on the geometric distribution of the scanned area, select K target points from the base points; Scan the target points and, with the origin as a reference, record the coordinates M of K points. n (X) n Y n Z n ).

6. The coupling method between the multi-channel fiber array and the waveguide as described in claim 4, characterized in that, The generation of the adjustment coupling strategy based on the plane angle and using a coupling algorithm includes: Based on the plane angle information, a first direction adjustment method is determined so that the coupling surface of the multi-channel fiber array and the waveguide coupling surface are parallel in a second direction that is perpendicular to the first direction. Rotate the multi-channel fiber array in a plane parallel to the second direction to obtain the position parameters of the multi-channel fiber array in the adjustment frame when the optical power at the left channel endpoint is maximum. Obtain the position parameters of the multi-channel fiber array in the adjustment frame when the optical power at the right channel endpoint of the multi-channel fiber array is at its maximum. Calculate the rotation angle based on the position parameters, and use the rotation angle as the compensation angle; The first direction adjustment method and the compensation angle are used as the adjustment coupling strategy; By employing optical power monitoring and the aforementioned adjustment coupling strategy, the first and second directions of the adjustment frame are adjusted.

7. A computer device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the coupling method of the multi-channel fiber array and waveguide as described in any one of claims 4 to 6.

8. A computer-readable storage medium storing a computer program, characterized in that, When the computer program is executed by the processor, it implements the coupling method of the multi-channel fiber array and waveguide as described in any one of claims 4 to 6.

Images