Multi-channel optical fiber array and waveguide coupling system, method and related equipment

Abstract

The invention discloses a multi-channel optical fiber array and waveguide coupling system and method and related equipment, and the method comprises the steps: scanning a waveguide coupling surface on a printed circuit board through employing a first group of infrared lasers, and obtaining first plane data; scanning the coupling surface of the multi-channel optical fiber array by adopting a second group of infrared lasers to obtain second plane data; determining a plane included angle according to the first plane data and the second plane data; based on the plane included angle, a coupling algorithm is adopted to generate an adjustment coupling strategy; and executing an adjustment coupling strategy, and performing coupling adjustment on the multi-channel optical fiber array and the waveguide. Two to-be-coupled planes are scanned through infrared laser, plane data are obtained, and the plane angle is calculated, so that the precision of the plane angle is improved, and the coupling efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the field of optical module packaging, and in particular to a coupling system and method for a multi-channel optical fiber array and a waveguide, and related equipment. Background Art

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

[0003] At present, the core diameter of the multi-channel optical fiber array is only 9 microns, and the coupling with the waveguide requires extremely high accuracy in the angle direction, X direction and Y direction. The existing technology mainly relies on the image vision recognition system to ensure the plane angle accuracy, which can usually only achieve an accuracy of ±0.5 degrees. This low angle accuracy limits the coupling efficiency and becomes a bottleneck restricting the performance improvement of the optical fiber communication system.

[0004] Therefore, a new technical solution is urgently needed to improve the accuracy of the planar angle between the multi-channel optical fiber array and the waveguide coupling surface, thereby improving the coupling efficiency. Summary of the invention

[0005] The embodiments of the present invention provide a coupling system, method, computer device and storage medium for a multi-channel optical fiber array and a waveguide, so as to improve the coupling efficiency between the multi-channel optical fiber array and the waveguide.

[0006] In order to solve the above technical problems, the embodiment of the present application provides a coupling system of a multi-channel optical fiber array and a waveguide, comprising 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,

[0007] The adjustment frame comprises a clamping jaw, the clamping jaw is used to fix the multi-channel optical fiber array, and the adjustment frame is used to adjust the position of the multi-channel optical fiber array;

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

[0009] The printed circuit board clamp includes a waveguide coupling surface, and the waveguide coupling surface can be a surface of the printed circuit board facing the adjustment frame, or a surface of the photoelectric conversion chip facing the adjustment frame. Preferably, the waveguide coupling surface is a 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 clamp and, at the same time, scan the coupling surface of the multi-channel optical fiber array to obtain plane scanning data of the two coupling surfaces, and send the plane scanning data to the control system;

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

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

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

[0013] The calculation unit is used to perform angle calculation according to the received plane scanning data to obtain the plane angle;

[0014] The strategy generation unit generates an adjustment coupling strategy according to the plane angle;

[0015] The adjustment control unit uses the adjustment coupling strategy to control the adjustment frame to perform adjustment coupling on the multi-channel optical fiber array.

[0016] Optionally, the infrared laser scanning device includes at least two groups of infrared lasers, the first group of infrared lasers is used to scan the waveguide coupling surface of the printed circuit board clamp, and the second group of infrared lasers is used to scan the coupling surface of the multi-channel optical fiber array.

[0017] In order to solve the above technical problems, the embodiment of the present application further provides a method for coupling a multi-channel optical fiber array with a waveguide, comprising:

[0018] Scanning the waveguide coupling surface of the printed circuit board clamp using a first group of infrared lasers to obtain first plane data;

[0019] Scanning the coupling surface of the multi-channel optical fiber array with a second set of infrared lasers to obtain second plane data;

[0020] Determining a plane angle according to 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 optical fiber array and the waveguide.

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

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

[0025] Scan the waveguide coupling on the printed circuit board, and record the coordinates M of K points respectively with the coordinate origin as 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 obtained by fitting calculation, and the plane equation is used as the first plane data.

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

[0028] Grid the scanned area and randomly select a point in each grid as the base point;

[0029] Selecting K target points from the base points according to the geometric distribution of the scanning area;

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

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

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

[0033] Obtaining the position parameters of the multi-channel optical fiber array in the adjustment frame when the optical power of the right channel end point of the multi-channel optical fiber array is maximum;

[0034] Calculate a rotation angle according to the position parameter, and use the rotation angle as a compensation angle;

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

[0036] In order to solve the above technical problems, an embodiment of the present application also provides a computer device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the above-mentioned method for coupling a multi-channel optical fiber array with a waveguide when executing the computer program.

[0037] In order to solve the above technical problems, an embodiment of the present application further provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the above-mentioned method for coupling a multi-channel optical fiber array with a waveguide are implemented.

[0038] The coupling system, method, computer device and storage medium of a multi-channel optical fiber array and a waveguide provided by an embodiment of the present invention use a first group of infrared lasers to scan the waveguide coupling surface of the printed circuit board clamp to obtain first plane data; use a second group of infrared lasers to scan the coupling surface of the multi-channel optical fiber array to obtain second plane data; determine the plane angle according to the first plane data and the second plane data; based on the plane angle, use a coupling algorithm to generate an adjustment coupling strategy; execute the adjustment coupling strategy to adjust the coupling between the multi-channel optical fiber array and the waveguide. The infrared laser scans two planes to be coupled to obtain plane data to calculate the plane angle, thereby improving the accuracy of the plane angle, which is conducive to improving the coupling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0040] Figure 1 It is a schematic diagram of the structure of the coupling system of the multi-channel optical fiber array and waveguide of the present application;

[0041] Figure 2 is a flow chart of an embodiment of a method for coupling a multi-channel optical fiber array and a waveguide of the present application;

[0042] Figure 3 is a side view of the coupling surface of the second set of infrared lasers scanning the multi-channel optical fiber array in the present application;

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

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

[0045] Figure 6 It is a structural diagram of an embodiment of a computer device according to the present application. DETAILED DESCRIPTION

[0046] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of the present application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "including" and "having" and any variations thereof in the specification and claims of the present application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of the present application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0047] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0048] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] Some professional names of this embodiment are explained as follows:

[0050] Printed circuit board, also known as printed circuit board, printed circuit board, often uses the English abbreviation PCBA (Printed Circuit Board Assembly), is an important electronic component, a support for electronic components, and a provider of circuit connections for electronic components.

[0051] A multi-channel fiber array is a fiber optic communication component that consists of multiple optical fibers arranged into a fiber array (FA) to achieve high-density fiber optic connections and data transmission. When coupling a multi-channel fiber array with a waveguide, the accuracy of the angle, X direction, and Y direction is extremely high.

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

[0053] An optical power meter is an instrument used to measure optical power or light intensity, and is widely used in fiber optic communications, scientific research, medical equipment, and industrial testing. It can measure optical power ranging from microwatts to watts, covering the entire spectrum from ultraviolet, visible light to infrared.

[0054] See also Figure 1 , Figure 1 The schematic diagram of the structure of the coupling system of the multi-channel optical fiber array and the waveguide provided by the embodiment of the present invention is shown, which 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,

[0055] The adjustment frame includes a clamping claw, the clamping claw is used to fix the multi-channel optical fiber array, and the adjustment frame is used to adjust the position of the multi-channel optical fiber array;

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

[0057] The printed circuit board clamp includes a waveguide coupling surface, which may be a surface of the printed circuit board facing the adjustment frame, or a surface of the photoelectric conversion chip facing the adjustment frame. Preferably, the waveguide coupling surface is a 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, at the same time, scan the coupling surface of the multi-channel single-mode optical fiber array to obtain plane scanning data of the two coupling surfaces, and send the plane scanning data to the control system;

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

[0059] The infrared laser scanning device includes at least two groups of infrared lasers, the first group of infrared lasers is used to scan the waveguide coupling surface of the printed circuit board clamping upward, and the second group of infrared lasers is used to scan the coupling surface of the multi-channel optical fiber array downward, or the first group of infrared lasers is used to scan the waveguide coupling surface of the printed circuit board clamping downward, and the second group of infrared lasers is used to scan the coupling surface of the multi-channel optical fiber array upward. The number of infrared lasers included in each group of infrared lasers can be limited according to actual needs, such as one or more than one.

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

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

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

[0063] The calculation unit is used to perform angle calculation according to the received plane scanning data to obtain the plane angle;

[0064] The strategy generation unit generates a regulation coupling strategy according to the plane angle;

[0065] The adjustment control unit adopts an adjustment coupling strategy to control the adjustment frame to adjust the coupling of the multi-channel optical fiber array.

[0066] Preferably, the adjustment frame in this embodiment adopts 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 conducive to improving coupling efficiency.

[0067] In this embodiment, the two surfaces to be coupled are fixed by clamping an adjustment frame and a printed circuit board, and then an infrared laser scanning device is used to scan and obtain the plane data of each surface. Then, a coupling strategy is generated based on the two plane data, and the coupling is adjusted to improve the accuracy of the plane angle through infrared laser scanning, which is beneficial to improving the coupling efficiency.

[0068] Each module in the above-mentioned multi-channel optical fiber array and waveguide coupling system can be implemented in whole or in part by software, hardware and a combination thereof. Each of the above-mentioned modules can be embedded in or independent of a processor in a computer device in the form of hardware, or can be stored in a memory in a computer device in the form of software, so that the processor can call and execute the operations corresponding to each of the above modules.

[0069] See also Figure 2 , Figure 2A coupling method between a multi-channel optical fiber array and a waveguide provided by an embodiment of the present invention is shown. The method is applied in a coupling system between a multi-channel optical fiber array and a waveguide, and is described in detail as follows:

[0070] S201: Scanning the waveguide coupling surface on the printed circuit board using a first group of infrared lasers to obtain first plane data.

[0071] Specifically, a coordinate origin is selected to construct a space coordinate system, and then a first group of infrared lasers is used to scan the waveguide coupling surface of the printed circuit board clamp to obtain first plane data, wherein the first plane data can be represented in the form of a plane equation.

[0072] In a specific implementation, scanning the waveguide coupling surface on the printed circuit board using a first group of infrared lasers to obtain first plane data includes:

[0073] The coordinate origin M0 (X0, Y0, Z0) is set 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 the reference. n (X n , Y n , Z n ), n∈[1,K], and n is a positive integer;

[0075] Based on the coordinates of the K points, a plane equation is obtained by fitting 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 to use the first group of infrared lasers as a reference, and set 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 laser is a fixed target, and the infrared laser is used as the origin to ensure that the collected coordinates are more objective and accurate.

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

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

[0079] Grid the scanned area and randomly select a point in each grid as the base point;

[0080] According to the geometric distribution of the scanning area, K target points are selected from the basic points;

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

[0082] Specifically, in order to ensure the rationality of the selection of scanning points, this embodiment adopts gridding first to avoid crowding, and considers the collective distribution of edge points and scanning areas to select scanning points, thereby ensuring the uniform distribution of scanning points and taking into account the geometric characteristics of the plane and actual working conditions, thereby improving the quality and accuracy of the scanning results.

[0083] S202: Scan the coupling surface of the multi-channel optical fiber array using a second group of infrared lasers to obtain second plane data.

[0084] like Figure 3 As shown, Figure 3 This is a side view of the second group of infrared lasers scanning the coupling surface of the multi-channel optical fiber array in this embodiment. The lower visual 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 order relationship between step S201 and step S202, and they can be executed in parallel, which is not specifically limited here.

[0086] S203: Determine a plane angle according to the first plane data and the second plane data.

[0087] Specifically, the first plane data is recorded using the plane equation A1x+B1y+C1z+D1=0, and the second plane data 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 a 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, determining a first direction adjustment method so that the coupling surface of the multi-channel single-mode optical fiber array and the waveguide coupling surface are parallel in a second direction perpendicular to the first direction;

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

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

[0093] According to the current coordinates (X1, Y1) and the current coordinates (X2, Y2), a rotation angle Q of the multi-channel single-mode optical fiber array in a plane parallel to the second direction is calculated, and the rotation angle Q is used as a compensation angle;

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

[0095] like Figure 4 As shown, Figure 4 Schematic diagram of the reverse compensation angle of 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 It is a side view schematic diagram of an embodiment of a coupling system of a multi-channel optical fiber array and a waveguide according to the present application. The six-dimensional adjustment frame and the clamp clamp the FA and adjust the position of the FA. The PCBA and the laser are fixed. The laser emits laser, and the laser emitted by the laser is transmitted to the optical power meter through the FA. The optical power meter is used to monitor the size of the received light. The computer and the host computer record the correspondence between the size of the light received by the optical power meter and the coordinates of the six-dimensional adjustment frame, and control the six-dimensional adjustment frame to rotate until the innermost channel and the outermost channel are both at the maximum value position.

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

[0098] Specifically, the optical power monitoring method is adopted, and the coupling strategy is adjusted so that the adjustment frame adjusts the first direction and the second direction.

[0099] In this embodiment, a first group of infrared lasers is used to scan the waveguide coupling surface of the printed circuit board clamp to obtain first plane data; a second group of infrared lasers is used to scan the coupling surface of the multi-channel optical fiber array to obtain second plane data; the plane angle is determined according to 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 adjustment coupling strategy is executed to adjust the coupling between the multi-channel optical fiber array and the waveguide. By scanning two planes to be coupled with infrared lasers, plane data is obtained to calculate the plane angle, thereby improving the accuracy of the plane angle, which is conducive to improving the coupling efficiency.

[0100] It should be understood that the order of execution of the steps in the above embodiment does not necessarily mean 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 embodiment of the present invention.

[0101] To solve the above technical problems, the present application also provides a computer device. 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 through a system bus. It should be noted that the figure only shows a computer device 4 with components connected to the memory 41, the processor 42, and the network interface 43, but it should be understood that it is not required to implement all the components shown, and more or fewer components can be implemented instead. Among them, those skilled in the art can understand that the computer device here is a device that can automatically perform 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 (Application Specific Integrated Circuit, ASIC), programmable gate arrays (Field-Programmable Gate Array, FPGA), digital processors (Digital Signal Processor, DSP), embedded devices, etc.

[0103] The computer device may be a computing device such as a desktop computer, a notebook, a PDA, a cloud server, etc. The computer device may interact with a user through a keyboard, a mouse, a remote controller, a touch pad, or a voice control device.

[0104] The memory 41 includes at least one type of readable storage medium, and the readable storage medium includes flash memory, hard disk, multimedia card, card-type memory (for example, SD or D interface display memory, etc.), 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 can be an internal storage unit of the computer device 4, such as a hard disk or memory of the computer device 4. In other embodiments, the memory 41 can also be an external storage device of the computer device 4, such as a plug-in hard disk, a smart memory card (Smart Media Card, SMC), a secure digital (Secure Digital, SD) card, a flash card (Flash Card), etc. equipped on the computer device 4. Of course, the memory 41 can also include both the internal storage unit of the computer device 4 and its external storage device. In this embodiment, the memory 41 is generally 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 the multi-channel optical fiber array and the waveguide, etc. In addition, the memory 41 can also be used to temporarily store various types of data that have been output or are to be output.

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

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

[0107] The present application also provides another embodiment, namely, providing a computer-readable storage medium, wherein the computer-readable storage medium stores an interface display program, and the interface display program can be executed by at least one processor to enable the at least one processor to perform the steps of the coupling method of the multi-channel optical fiber array and the waveguide as described above.

[0108] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes a number of instructions for a terminal device (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in each embodiment of the present application.

[0109] Obviously, the embodiments described above are only some embodiments of the present application, rather than all embodiments. The preferred embodiments of the present application are given in the accompanying drawings, but they do not limit the patent scope of the present application. The present application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. Although the present application is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to replace some of the technical features therein with equivalents. Any equivalent structure made using the contents of the specification and drawings of this application, directly or indirectly used in other related technical fields, is similarly within the scope of patent protection of this application.

Claims

1. A multi-channel optical fiber array and waveguide coupling system, characterized in that: It 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 comprises a clamping jaw, the clamping jaw is used to fix the multi-channel optical fiber array, and the adjustment frame is used to adjust the position of the multi-channel optical fiber array; The printed circuit board clamp comprises a printed circuit board, a base limiting groove and a photoelectric conversion chip, wherein the base limiting groove is used to fix the printed circuit board, the photoelectric conversion chip is mounted on the printed circuit board, and the photoelectric conversion chip comprises a waveguide; The printed circuit board fixture includes a waveguide coupling surface, which is a surface of the printed circuit board facing the adjustment frame or a surface of the photoelectric conversion chip facing the adjustment frame, and the infrared laser scanning device is used to scan the waveguide coupling surface of the printed circuit board fixture and, at the same time, scan the coupling surface of the multi-channel optical fiber array to obtain plane scanning data of the two coupling surfaces, and send the plane scanning data to the control system; The control system receives the plane scanning data sent by the infrared laser scanning device, generates an adjustment coupling strategy, and controls the adjustment frame to adjust the coupling of the multi-channel optical fiber array based on the adjustment coupling strategy.

2. The multi-channel optical fiber array and waveguide coupling system according to claim 1, characterized in that: The control system includes a signal receiving unit, a calculation unit, a strategy generating unit and an adjustment control unit; The signal receiving unit is used to receive the plane scanning data sent by the infrared laser scanning device; The calculation unit is used to perform angle calculation according to the received plane scanning data to obtain the plane angle; The strategy generation unit generates an adjustment coupling strategy according to the plane angle; The adjustment control unit uses the adjustment coupling strategy to control the adjustment frame to perform adjustment coupling on the multi-channel optical fiber array.

3. The multi-channel optical fiber array and waveguide coupling system according to claim 1, characterized in that: The infrared laser scanning device includes at least two groups of infrared lasers, the first group of infrared lasers is used to scan the waveguide coupling surface clamped by the printed circuit board, and the second group of infrared lasers is used to scan the coupling surface of the multi-channel optical fiber array.

4. A method for coupling a multi-channel optical fiber array to a waveguide, characterized in that: The method applied to the multi-channel optical fiber array and waveguide coupling system according to any one of claims 1 to 3 comprises: Scanning the waveguide coupling surface of the printed circuit board clamp using a first group of infrared lasers to obtain first plane data; Scanning the coupling surface of the multi-channel optical fiber array with a second set of infrared lasers to obtain second plane data; Determining a plane angle according to 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 optical fiber array and the waveguide.

5. The method for coupling a multi-channel optical fiber array to a waveguide according to claim 4, characterized in that: The first group of infrared lasers is used to scan the waveguide coupling surface of the printed circuit board clamp to obtain the first plane data, including: The coordinate origin M0 (X0, Y0, Z0) is set based on the first group of infrared lasers; Scan the waveguide coupling surface of the printed circuit board clamp, and record the coordinates M of K points respectively with 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 obtained by fitting calculation, and the plane equation is used as the first plane data.

6. The method for coupling a multi-channel optical fiber array to a waveguide according to claim 5, characterized in that: The coordinate origin is used as a reference, and the coordinates M of K points are recorded respectively. n (X n , Y n , Z n )include: Grid the scanned area and randomly select a point in each grid as the base point; Selecting K target points from the base points according to the geometric distribution of the scanning area; Scan the target point and record the coordinates M of K points with the coordinate origin as a reference n (X n , Y n , Z n ).

7. The method for coupling a multi-channel optical fiber array to a waveguide according to claim 4, characterized in that: The generating of the adjustment coupling strategy based on the plane angle and using the coupling algorithm comprises: Based on the plane angle information, determining a first direction adjustment method so that the coupling surface of the multi-channel optical fiber array and the waveguide coupling surface are parallel in a second direction perpendicular to the first direction; The multi-channel optical fiber array is rotated in a plane parallel to the second direction to obtain position parameters of the multi-channel optical fiber array in the adjustment frame when the optical power of the left channel end point of the multi-channel optical fiber array is maximum, and Obtaining the position parameters of the multi-channel optical fiber array in the adjustment frame when the optical power of the right channel end point of the multi-channel optical fiber array is maximum; Calculate the rotation angle according to the position parameter, and use the rotation angle as the compensation angle; Using the first direction adjustment method and the compensation angle as the regulation coupling strategy; The optical power monitoring method is adopted to adjust the first direction and the second direction of the adjustment frame through the adjustment coupling strategy.

8. 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, the method for coupling a multi-channel optical fiber array and a waveguide as claimed in any one of claims 4 to 7 is implemented.

9. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the method for coupling a multi-channel optical fiber array and a waveguide as claimed in any one of claims 4 to 7 is implemented.

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