A structure and method for optical fiber array for fixing length and testing optical module

Abstract

The present invention discloses a structure and method for length-fixing and testing an optical fiber array of an optical module, comprising a base and a cover plate detachably connected to the base, the cover plate being processed with at least one first positioning hole for positioning the FA head of the optical fiber array and a second positioning hole for positioning the MT head of the optical fiber array, each first positioning hole and the second positioning hole being connected through a profiling hole, the length of the profiling hole corresponding to the target fiber length, and the base being provided with an elastic loading unit for clamping the FA head in the first positioning hole and the MT head in the second positioning hole. The present invention is not only simple in structure and convenient in maintenance, but also can quickly and accurately fix the length of the optical fiber of the optical array through the cover plate with the profiling hole.

Description

Technical Field

[0001] The invention relates to a structure of an optical fiber array for fixing the length and testing an optical module, belongs to the technical field of optical modules, and in particular to a structure and method of an optical fiber array for fixing the length and testing an optical module. Background Art

[0002] With the rapid development of emerging technologies such as 5G communications, data centers, and cloud computing, the demand for optical modules has exploded. As one of the core components of optical modules, the market demand for fiber array products has also increased significantly. Fiber arrays play a vital role in optical modules, responsible for transmitting optical signals from optoelectronic devices inside optical modules to external optical fibers, or vice versa.

[0003] However, the design of the optical module itself faces many challenges, the most notable of which is space limitation. Modern optical modules pursue miniaturization and high-density integration, resulting in extremely small internal space. This space constraint places extremely high demands on the fiber length positioning control of the fiber array. The chip receiving or transmitting position of the optical module is usually fixed in advance on the printed circuit board assembly (PCBA) of the optical module, which requires that the length of the fiber array must be precisely controlled to ensure that the optimal working distance is maintained between its output end face and the chip.

[0004] If the length of the fiber array deviates, resulting in the distance between its output end face and the chip being too long or too short, it will have a significant negative impact on the performance of the optical module. Specifically, a distance that is too long will cause the optical signal to attenuate more during transmission, thereby reducing the receiving sensitivity; while a distance that is too short may cause the optical coupling efficiency to decrease, affecting the transmission power. Both of these situations will directly lead to a decrease in the overall performance of the optical module, affecting its reliability and efficiency in practical applications.

[0005] Therefore, precise control of the length of the fiber array becomes a key factor in ensuring the quality and performance of optical module products. However, existing methods and tools for determining the length of optical fiber arrays often have many problems, which are mainly manifested in the following aspects: 1. Insufficient precision: Traditional manual measurement and cutting methods are difficult to achieve the micron-level precision required by optical modules, which easily leads to product consistency problems in mass production. 2. Complex operation: Although some semi-automatic length-determining equipment has improved the accuracy, the operation process is cumbersome and requires professional personnel to debug and maintain, which increases production costs. 3. Inefficiency: The production efficiency of manual or semi-automatic methods is low, which makes it difficult to meet the rapidly growing demand of the optical module market and achieve large-scale mass production. 4. Poor repeatability: Due to the influence of human factors, operations by different operators or at different time periods may cause fluctuations in product quality and affect the stability of production. 5. Insufficient adaptability: Existing length-determining methods and tools are often designed for specific models of fiber arrays, which are difficult to quickly adapt to the needs of products of different specifications and models, limiting the flexibility of production.

[0006] These problems seriously restrict the production efficiency and quality stability of fiber arrays, which in turn affects the large-scale production and application promotion of optical modules. Therefore, developing a high-precision, high-efficiency, easy-to-operate and well-adaptable fiber array length determination method and tool has become a technical problem that the optical communication industry needs to solve urgently. This is not only related to the production efficiency and product quality of a single enterprise, but also to the healthy development and technological progress of the entire optical communication industry chain. Summary of the invention

[0007] The technical problem to be solved by the present invention is to provide a structure and method for determining the length of an optical fiber array and testing an optical module in response to the technical defects existing in the prior art. The structure and method are simple in structure and easy to maintain, and the optical fiber of the optical array can be quickly and accurately determined in length through a cover plate with a contoured hole.

[0008] The technical solution adopted by the present invention to solve its technical problem is: the present invention discloses a structure of an optical fiber array for fixing the length and testing an optical module, comprising a base and a cover plate detachably connected to the base, the cover plate being processed with at least one first positioning hole for positioning the FA head of the optical fiber array and a second positioning hole for positioning the MT head of the optical fiber array, each first positioning hole and the second positioning hole being connected through a profiling hole, the length of the profiling hole corresponding to the target fiber length, and the base being provided with an elastic loading unit for clamping the FA head located in the first positioning hole and the MT head located in the second positioning hole.

[0009] In a preferred embodiment of the present invention, the elastic loading unit includes a crimping slider slidably connected to the base, a connecting rod connected to the crimping slider, and a handle connected to the connecting rod, the connecting rod is connected to the base via a stop block and can be axially displaced therethrough, a compression spring is mounted on the connecting rod, one end of the compression spring is in contact with the crimping slider, and the other end is in contact with the stop block.

[0010] In a preferred embodiment of the present invention, a T-shaped hole is provided on the crimping slider, and a T-shaped boss feature capable of plugging and fitting with the T-shaped hole is provided at the end of the connecting rod.

[0011] In a preferred embodiment of the present invention, a silicone pad is provided at the end of the crimping slider.

[0012] In a preferred embodiment of the present invention, the base and / or the cover plate are both provided with a groove for limiting the crimping slider, and the groove is communicated with the first positioning hole or the second positioning hole.

[0013] In a preferred embodiment of the present invention, the cover plate is provided with two non-collinearly arranged first positioning holes and one second positioning hole, one first positioning hole is connected to the second positioning hole through a horizontal profiling hole, and one first positioning hole is connected to the second positioning hole through an inclined profiling hole.

[0014] In a preferred embodiment of the present invention, the base is provided with three elastic loading units, wherein two bases are arranged corresponding to the two first positioning holes one by one, one elastic loading unit base is arranged corresponding to the second positioning hole, and the elastic loading unit arranged corresponding to the first positioning hole and the elastic loading unit arranged corresponding to the second positioning hole are perpendicular to each other.

[0015] In a preferred embodiment of the present invention, two elastic loading units arranged corresponding to the two first positioning holes share a handle.

[0016] In a preferred embodiment of the present invention, a loading adjustment block for adjusting the pressure of the compression spring is coaxially mounted on the connecting rod.

[0017] The present invention also discloses a method for fixing the length of an optical fiber array and testing an optical module using the structure of the optical fiber array for fixing the length and testing the optical module, comprising the following steps: S1, selecting a cover plate based on the target optical fiber array, installing the cover plate on a base, wherein only an elastic loading unit adapted to a first positioning hole is assembled, and the elastic loading unit structure adapted to a second positioning hole is not assembled, and the structure of the optical fiber array for fixing the length and testing the optical module is used as a tool for cutting the length of the optical fiber array; S2, marking the contact point between the front end of the second positioning hole and the base, determining the fiber length by the length of the profiling hole, placing the FA head into the first positioning hole and pressing it by the elastic loading unit, and then cutting the fiber at the marked position, and cutting. After the optical fiber is completed, the FA head is taken out, the optical fibers of the optical fiber array are combined, and then stripped and inserted into the MT ferrule to form the MT head; S3, the elastic loading unit is assembled in the second positioning hole, and the assembled optical fiber array with the FA head and the MT head is placed in the structure of the optical fiber array of the fixed length and test optical module, the FA head is first clamped by the elastic loading unit, and then the MT head is clamped by the elastic loading unit. After the fiber length is determined, the MT ferrule of the MT head is fixed with UV glue on the tail end of the MT head, and then the elastic loading unit is released, and the optical fiber array is taken out to cure the glue; S4, after the optical fiber array is cured, the optical fiber array is put back into the fixture for length testing.

[0018] The beneficial effects of the present invention are: Thank you very much for the additional information you provided. I will integrate these important technical effects into the previous description to make the technical effects more comprehensive and specific. The following is the revised description of the technical effects:

[0019] The structure and method of the optical fiber array for fixing the length and testing the optical module provided by the present invention cleverly solve many problems existing in the prior art, and at the same time introduce a number of innovative designs, which significantly improves the efficiency and accuracy of the optical fiber array production.

[0020] First, the carefully designed cover plate structure, including the first positioning hole, the second positioning hole and the profiling hole connecting the two, effectively ensures the precise control of the length of the optical fiber array. It is particularly worth mentioning that the length of the fiber is fixed through the profiling groove area of ​​the profiling groove cover plate. This design ensures a high degree of length accuracy and greatly improves the consistency and reliability of the product. This structural design not only improves the length determination accuracy, but also greatly simplifies the operation process, so that even non-professionals can easily complete the length determination of the optical fiber array.

[0021] Secondly, the present invention adopts an innovative elastic loading unit, including components such as a crimping slider, a connecting rod and a handle. In particular, the design of the double screw spring allows two FA heads to be fixed at the same time in one operation, greatly improving the operating efficiency. The design of the shaft block ensures the consistency of the spring length, thereby ensuring the uniformity of the crimping force, which is crucial to maintaining product quality. In addition, the structural design of the rod tip of the screw can directly fix the crimping slider, simplifying the processing process and improving production efficiency. These designs significantly improve the stability and reliability of the optical fiber array during the fixed-length process. By adjusting the pressure of the compression spring, optical fiber arrays of different specifications can be adapted, enhancing the applicability and flexibility of the structure of the optical fiber array for fixed-length and test optical modules.

[0022] Furthermore, the structural design of the optical fiber array of the fixed-length and test optical module of the present invention takes into account both the fixed-length and test functions. This multifunctional integration greatly improves production efficiency. In particular, the crimping structure design of the MT head can be canceled at any time and used for fiber length cutting, and the product length test can be performed after installation. This flexible dual-use design greatly improves the practicality of the tool and the flexibility of the production line. In mass production, the entire process from fixed-length to testing can be completed quickly, reducing the intermediate links and equipment switching time, providing strong support for large-scale production.

[0023] In addition, the structure of the optical fiber array of the fixed-length and test optical module of the present invention adopts a modular assembly design, which greatly facilitates the replacement and maintenance of parts. This design not only reduces maintenance costs, but also increases the service life and reliability of the equipment, which has significant advantages for long-term large-scale production.

[0024] Finally, the length determination and testing method proposed in the present invention divides the entire process into clear steps, including selecting an appropriate cover plate, cutting the fiber to length, assembling the MT head, fixing and testing. This systematic method not only improves the standardization and repeatability of the operation, but also provides a reliable basis for quality control. In particular, in the final length test link, it ensures that each product can meet the expected accuracy requirements.

[0025] In general, the present invention effectively solves the problems of insufficient precision, complex operation, and low efficiency in the process of determining the length of optical fiber arrays through innovative structural design, modular assembly, dual-function integration, and systematic operation methods. It not only significantly improves the production efficiency, quality stability, and maintenance convenience of optical fiber arrays, but also provides strong support for the large-scale production and application promotion of optical modules, which is of great significance to promoting the technological progress of the entire optical communication industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0027] Figure 1 is a schematic structural diagram of an embodiment of the present invention;

[0028] Figure 2 is a structural exploded view of an embodiment of the present invention;

[0029] Figure 3 is a top view of the structure of an embodiment of the present invention (with the cover plate hidden);

[0030] Figure 4 Schematic diagram of an elastic loading unit according to an embodiment of the present invention. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0032] Example 1

[0033] like Figure 1-4 As shown, the present invention provides a structure of an optical fiber array for length determination and testing optical modules, the core components of which include a base 1 and a cover plate 3 connected to the base 1 by a first screw 2. This innovative design aims to completely solve the problems of insufficient precision, complex operation and low efficiency that are common in the current optical fiber array length determination process. Through ingenious structural design and systematic operation methods, the present invention significantly improves the production efficiency and quality stability of the optical fiber array.

[0034] The cover plate 3 is one of the key components of the present invention, and is precisely processed with at least one first positioning hole 31 for positioning the FA head A of the optical fiber array and a second positioning hole 32 for positioning the MT head B of the optical fiber array. The design and processing accuracy of these positioning holes directly affect the fixed length quality of the optical fiber array. The size and shape of the first positioning hole 31 and the second positioning hole 32 are carefully calculated and optimized to ensure that the FA head A and the MT head B can be firmly fixed in the correct position to avoid displacement or deviation during the fixed length process.

[0035] What is more ingenious is that each first positioning hole 31 and the second positioning hole 32 are connected through a profiling hole 33. The design of this profiling hole 33 is a highlight of the present invention. The length of the profiling hole 33 corresponds precisely to the target fiber length, and this correspondence is obtained through complex optical calculations and engineering design. Through this design, the operator can intuitively control the length of the optical fiber array without complex measurement tools or cumbersome calculation processes. This not only greatly simplifies the operation process, but also significantly improves the accuracy and consistency of the fixed length.

[0036] The internal structure of the profiling hole 33 is also carefully designed. Its inner wall is highly smooth, which can minimize the wear and damage to the optical fiber. At the same time, the cross-sectional shape of the profiling hole 33 is optimized to ensure that the optical fiber moves smoothly in it and prevent the optical fiber from twisting or bending during the length determination process. This design not only improves the length determination accuracy, but also prolongs the service life of the optical fiber and reduces the loss rate during the production process.

[0037] The base 1 is another key component, on which an elastic loading unit is provided for clamping the FA head A located in the first positioning hole 31 and the MT head B located in the second positioning hole 32. The design of this elastic loading unit greatly improves the stability and reliability of the optical fiber array during the fixed length process. The elastic loading unit adopts a precise spring mechanism, which can automatically adjust the clamping force according to different models of FA head A and MT head B, ensuring a firm clamping without causing excessive pressure on the optical fiber.

[0038] Another innovative feature of the elastic loading unit is its adjustability. The operator can easily adjust the clamping force according to different fiber types and fixed length requirements. This flexibility allows the structure of the fiber array of the same fixed length and test optical module to adapt to multiple types of fiber array products, greatly improving the versatility of the equipment and the flexibility of the production line.

[0039] The present invention successfully solves multiple technical problems in the process of determining the length of the optical fiber array through the carefully designed cover plate 3 and base 1, as well as the innovative contoured hole 33 and elastic loading unit. This design not only improves the length determination accuracy and simplifies the operation process, but also significantly improves the production efficiency and the stability of product quality. This is of great significance for meeting the growing demand for high-quality optical fiber arrays and promoting the advancement of optical communication technology.

[0040] Example 2

[0041] In this embodiment, the present invention further optimizes and improves the structure of the cover plate 3. Two first positioning holes 31 for positioning the FA head A of the optical fiber array and a second positioning hole 32 for positioning the MT head B of the optical fiber array are precisely processed on the cover plate 3. The cleverness of this design lies in that it can process two groups of optical fiber arrays at the same time, which significantly improves production efficiency. The base 1 is provided with three elastic loading units, two of which are arranged one-to-one corresponding to the two first positioning holes 31, and one is arranged corresponding to the second positioning hole 32. The elastic loading unit arranged corresponding to the first positioning hole 31 and the elastic loading unit arranged corresponding to the second positioning hole 32 are perpendicular to each other. This layout ensures the effective clamping of the FA head A and the MT head B, and improves the stability of the fixed length process. In order to simplify the operation, the two elastic loading units arranged corresponding to the two first positioning holes 31 share a handle 13. This design not only reduces the operating steps, but also improves the consistency of the operation.

[0042] Each first positioning hole 31 is connected to the second positioning hole 32 through an independent profiling hole 33. This one-to-many connection greatly increases the flexibility and applicability of the structure of the optical fiber array for the fixed length and test optical module. The length of the profiling hole 33 corresponds precisely to the target fiber length, and this correspondence is obtained through complex optical calculations and precise engineering design. Through this design, the operator can control the length of two sets of optical fiber arrays at the same time without the need for additional measurement tools or cumbersome calculation processes.

[0043] It is worth noting that the positions of the two first positioning holes 31 are carefully arranged. Their relative positions and angles are optimized, which not only ensures that the two sets of optical fiber arrays do not interfere with each other, but also saves the space of the cover plate 3 to the maximum extent. This compact design not only improves the space utilization of the structure of the optical fiber array of the fixed length and test optical module, but also facilitates the operator to operate the two sets of optical fiber arrays at the same time.

[0044] The internal structure of the profiling hole 33 has also been further optimized. In addition to maintaining a high degree of smoothness to reduce wear on the optical fiber, a special cross-sectional design is also adopted. This design can effectively prevent the optical fiber from twisting or bending during the fixed length process while ensuring smooth movement of the optical fiber. For optical fiber arrays that require a specific bending angle, the profiling hole 33 can also be customized to a specific curvature to meet the needs of different products.

[0045] In addition, the design of the second positioning hole 32 has also been optimized. It can not only firmly fix the MT head B, but also has an automatic alignment function, which can ensure that the two sets of optical fiber arrays are accurately converged at the MT head B. This design greatly reduces operational errors and improves product consistency.

[0046] In general, this improved cover plate 3 design increases the number of first positioning holes 31 and cleverly uses the contoured holes 33 to connect, thereby achieving simultaneous processing of multiple groups of optical fiber arrays. This not only greatly improves production efficiency, but also ensures accurate control of the length of the optical fiber array and significantly improves the fixed length accuracy. This innovative design provides strong technical support for large-scale, high-quality optical fiber array production and is of great significance to promoting the advancement of optical communication technology.

[0047] Example 3

[0048] In this embodiment, the cover plate 3 of the present invention has two first positioning holes 31 for positioning the FA head A of the optical fiber array, which are arranged non-collinearly. Among them, one first positioning hole 31 is connected to the second positioning hole 32 through a horizontal profiling hole 33, and the other first positioning hole 31 is connected to the second positioning hole 32 through an inclined profiling hole 33. This design increases the applicability of the present invention and can adapt to different types of optical fiber array products. The cover plate 3 is carefully arranged with two first positioning holes 31 for positioning the FA head A of the optical fiber array. The two holes are arranged non-collinearly, which greatly improves the flexibility and scope of application of the present invention.

[0049] Specifically, one of the first positioning holes 31 is connected to the second positioning hole 32 through a horizontal profiling hole 33. This horizontal connection design is suitable for standard linear optical fiber arrays, ensuring that the optical fiber remains in a straight state during the length determination process, which is conducive to maintaining stable transmission of optical signals and reducing signal loss. At the same time, the horizontal arrangement also simplifies the operation process, allowing operators to perform length determination and testing work more intuitively.

[0050] On the other hand, the other first positioning hole 31 is connected to the second positioning hole 32 through the inclined profiling hole 33. The cleverness of this inclined design is that it can adapt to certain special types of optical fiber arrays, such as products that require a certain bending angle. The inclined profiling hole 33 can naturally form a preset bend during the lengthening process, which is of great significance for some specific application scenarios, such as optical modules with limited space or optical communication systems that require special wiring.

[0051] The advantage of this dual design is that it significantly increases the applicability of the structure of the fiber array of the fixed-length and test optical module. It can not only meet the production needs of conventional linear fiber arrays, but also cope with various fiber array products with special specifications and designs. This flexibility allows the structure of the fiber array of the same fixed-length and test optical module to be used in different production lines or different product series, greatly reducing the equipment investment cost and production line adjustment time.

[0052] In addition, this design also provides the possibility for product innovation. Based on the structure of the flexible fixed-length and test optical module fiber array, designers can develop more diverse fiber array products to meet the changing market needs. For example, a composite fiber array can be designed that contains both straight parts and curved parts at specific angles in the same product, thereby realizing a more complex optical signal transmission path in a limited space.

[0053] This innovative cover plate design not only improves the practicality and adaptability of the present invention, but also opens up a new path for the diversified development of optical fiber array products.

[0054] Example 4

[0055] In this embodiment, the present invention innovatively designs the elastic loading unit to achieve higher precision control and operational flexibility. The optimized elastic loading unit is composed of a plurality of carefully designed components, including a crimping slider 6 slidably connected to the base 1, a connecting rod 8 connected to the crimping slider 6, and a handle 13 connected to the connecting rod 8. This multi-stage linkage design ensures the stability and controllability of pressure transmission.

[0056] The crimping slider 6 is the core component of the entire elastic loading unit. It is connected to the base 1 through a precise sliding mechanism. This connection method ensures both the smooth movement of the crimping slider 6 and its stability during the crimping process. The surface of the crimping slider 6 has been specially treated to have high hardness and wear resistance, and can maintain a good working condition for a long time, reducing maintenance requirements.

[0057] The connecting rod 8 is a key component connecting the crimping slider 6 and the handle 13. It is connected to the base 1 through the stopper 11, and the stopper 11 is fixed to the base through the second screw 12. This connection method allows the connecting rod 8 to move along its axial direction. This adjustable design provides the operator with a larger control space and can adjust the crimping force according to the optical fiber arrays of different specifications. The material of the connecting rod 8 is carefully selected, which has sufficient strength to transmit pressure and a certain degree of elasticity to absorb possible impact force and protect the optical fiber array.

[0058] The compression spring 7 is the power source of the entire elastic loading unit. It is mounted on the connecting rod 8, with one end in contact with the crimping slider 6 and the other end in contact with the stopper 11. This design allows the compression spring 7 to be evenly compressed and released when the connecting rod 8 moves, providing a stable and controllable pressure. The material and specifications of the compression spring 7 are precisely calculated, and can maintain good elasticity after long-term use, ensuring the consistency of pressure.

[0059] The handle 13 is the interface for the operator to interact with the elastic loading unit. Its design takes into account the ergonomic principles, and is comfortable to hold and easy to operate. By adjusting the position of the handle 13, the operator can accurately control the compression degree of the compression spring 7, thereby adjusting the crimping force. This design allows the operator to quickly adjust the pressure according to the fiber arrays of different specifications, greatly improving the applicability and flexibility of the structure of the fiber array of the fixed length and test optical module.

[0060] In addition, the design of the entire elastic loading unit also takes into account the need for quick disassembly and assembly. The various components adopt a modular design, which can be easily disassembled and replaced. This is not only convenient for daily maintenance, but also allows the replacement of compression springs or compression slides of different specifications according to different production needs.

[0061] The elastic loading unit design achieves precise clamping and protection of the optical fiber array through a multi-stage linkage mechanism and adjustable pressure. It not only improves the accuracy and stability of the length-fixing process, but also greatly enhances the structural applicability and operational flexibility of the optical fiber array for length-fixing and testing optical modules, providing strong technical support for high-quality and diversified optical fiber array production.

[0062] Example 5

[0063] In this embodiment, the present invention designs an adjustable positioning device for different optical fiber array fixing requirements, and further optimizes the crimping slider 6 to improve the versatility, stability and protection performance of the optical fiber array structure for the fixed length and test optical module. The core components of the device include a movable positioning block, a fixed slide rail, a precision positioning adjustment screw, and an improved crimping slider 6.

[0064] The design of the crimping slider 6 is further optimized in this embodiment. A T-hole is newly provided on the crimping slider 6, and this T-hole design is intended to simplify the connection with the connecting rod 8. The end of the connecting rod 8 is provided with a T-shaped boss feature that can be plugged into the T-hole. Through this plug-in fit, the connection between the crimping slider 6 and the connecting rod 8 is more stable, avoiding the looseness or displacement problems that may occur in the traditional connection method, thereby ensuring the positioning accuracy after long-term use. At the same time, this design greatly simplifies the assembly and disassembly process of the structure of the optical fiber array of the fixed-length and test optical module, and improves the operating efficiency of the production line.

[0065] In order to further protect the optical fiber array, a silicone pad 4 is also provided at the end of the crimping slider 6. The silicone pad 4 is soft and has good elasticity, and can effectively buffer the pressure during the crimping process to prevent the optical fiber array from being damaged due to excessive clamping. The application of the silicone pad 4 not only improves the safety of the optical fiber array, but also greatly reduces the risk of optical fiber breakage or damage, further ensuring the quality and consistency of the product.

[0066] The combination of the movable positioning block and the fixed rail ensures the precise positioning of the fiber array. The movable positioning block can move smoothly on the fixed rail, and the position can be fine-tuned by the precision positioning adjustment screw. The positioning block is equipped with multiple slots for fixing different types of FA heads. These slots are carefully designed to ensure that various types of FA heads can be firmly fixed under different production requirements.

[0067] The fixed rail is the basic component of the device, installed on the base 1, and is used to guide and support the movable positioning block. The surface of the fixed rail is processed with high precision to ensure its flatness and wear resistance, and to ensure that the positioning block moves smoothly on the rail. The guide edges on both sides of the rail further improve the movement accuracy and stability of the positioning block, ensuring that the fiber array always remains in the correct position during operation.

[0068] The design of the precision positioning adjustment screw is the key to achieving the fine-tuning function. One end of the screw is fixed to the base 1, and the other end is connected to the movable positioning block through a thread. By rotating the adjustment screw, the operator can accurately control the position of the positioning block on the slide rail. The pitch of the screw is precisely designed so that the displacement of each fine-tuning can be controlled at the micron level, thereby ensuring the precise positioning of the optical fiber array and further improving the accuracy and reliability of the fixed length process.

[0069] This embodiment achieves high stability of the structure of the optical fiber array of the fixed length and test optical module during assembly and operation and effective protection of the optical fiber array by providing a T-shaped hole 9 on the crimping slider 6 to cooperate with the T-shaped boss 5 of the connecting rod 8, and providing a silicone pad 4 at the end of the crimping slider 6. This design not only simplifies the operation process and improves the positioning accuracy, but also greatly improves the product quality and production efficiency of the optical fiber array, and further expands the scope of application of the structure of the optical fiber array of the fixed length and test optical module.

[0070] Example 6

[0071] In this embodiment, the present invention further optimizes the structure of the base 1 and the cover plate 3 to improve the positioning accuracy and clamping stability of the crimping slider 6. Specifically, the base 1 and / or the cover plate 3 are provided with a groove for limiting the crimping slider 6, and the groove is connected to the first positioning hole 31 or the second positioning hole 32. Through this structural design, it is ensured that the crimping slider 6 can maintain a precise position during operation without accidental displacement, thereby improving the clamping accuracy and stability of the optical fiber array.

[0072] The design of the groove is carefully optimized, and its size and shape match the lower structure of the crimping slider 6 to ensure that the crimping slider 6 can be smoothly embedded in the groove and maintain a stable track during the sliding process. This precise limit design allows the crimping slider 6 to always remain on the set track during movement, avoiding the problem of optical fiber array misalignment or uneven pressure caused by the slider position offset.

[0073] In addition, the connection design between the groove and the first positioning hole 31 or the second positioning hole 32 also has an important function. Through this connection, the groove not only plays a limiting role, but also can guide the moving direction of the crimping slider 6 so that it is always aligned with the positioning hole of the optical fiber array during the crimping process. This structural design can effectively avoid the positioning error caused by the misalignment of the slider and the positioning hole during the crimping process, and further improve the operating accuracy of the present invention.

[0074] This design also excels in terms of operational convenience. Since the crimping slider 6 is confined in the groove, the operator no longer needs to repeatedly adjust the position of the slider when clamping and fixing the length of the optical fiber array, which greatly simplifies the operation process and improves work efficiency. At the same time, the presence of the groove allows the crimping slider 6 to automatically reset to the initial position after each use, reducing debugging and preparation time.

[0075] By providing a groove for limiting the crimping slider 6 on the base 1 and / or the cover plate 3 and connecting it to the positioning hole, the present embodiment achieves precise control of the position of the crimping slider 6, significantly improving the clamping accuracy and stability of the optical fiber array. This optimized design not only enhances the performance of the present invention, but also improves the reliability and efficiency of the production process, providing a strong guarantee for the production of high-quality optical fiber arrays.

[0076] Example 7

[0077] In this embodiment, the present invention further enhances the flexibility and adaptability of the present invention, especially the operational accuracy when dealing with optical fiber arrays of different specifications and materials. To achieve this purpose, a loading adjustment block 10 for adjusting the pressure of the compression spring 7 is coaxially mounted on the connecting rod 8. This design allows the operator to accurately control the compression degree of the compression spring 7 by adjusting the position of the loading adjustment block 10, thereby adjusting the pressure applied to the optical fiber array.

[0078] The structure of the loading adjustment block 10 is carefully designed to ensure that it can move smoothly on the connecting rod 8. The adjustment block 10 can be easily adjusted on the connecting rod 8 by the operator through the rotation or sliding adjustment mechanism. When the loading adjustment block 10 moves, it will directly affect the compression amount of the compression spring 7, thereby changing the pressure of the compression spring 7. Through this design, the present invention can easily adapt to optical fiber arrays of different specifications and materials, avoiding the problem of optical fiber damage due to excessive pressure or insufficient pressure affecting the fixing effect.

[0079] This design significantly improves the applicability and operational flexibility of the present invention. In actual production, the specifications and materials of the optical fiber array may be different, and different optical fiber arrays may have different pressure requirements. For example, a more fragile optical fiber may require less pressure to avoid damage, while a more resilient optical fiber may require greater pressure to ensure the fixing effect. By loading the adjustment block 10, the operator can quickly adjust the pressure of the present invention according to specific needs to ensure that the best clamping effect can be achieved in each operation.

[0080] In addition, the adjustment process of the load adjustment block 10 is simple and intuitive, and does not require complex tools or professional skills. The operator can accurately adjust the pressure of the compression spring 7 by naked eye observation and manual operation. This design greatly simplifies the production preparation and adjustment process, improves production efficiency, and reduces the product defect rate caused by improper pressure.

[0081] With the help of the load adjustment block 10, the present invention can not only adapt to a wider range of optical fiber array types, but also maintain high-precision pressure control in each operation, ensuring the fixed-length quality and clamping stability of the optical fiber array. At the same time, this design also provides technical support for the versatility of the present invention between different production lines, reducing equipment adjustment time and replacement costs.

[0082] This embodiment achieves precise control of the pressure of the compression spring 7 by coaxially mounting the loading adjustment block 10 on the connecting rod 8. This design significantly enhances the applicability of the present invention, enabling it to better cope with optical fiber arrays of different specifications and materials, and further improves the production efficiency and product quality of the optical fiber array.

[0083] The invention of the present invention adopts a modular assembly design, which greatly facilitates the replacement and maintenance of parts. For example, if a part is worn or damaged, the part can be replaced alone without replacing the entire invention. This design not only reduces maintenance costs, but also improves the service life and reliability of the equipment, which has significant advantages for long-term large-scale production.

[0084] Example 8

[0085] The present invention also discloses a method for fixing the length of an optical fiber array and testing an optical fiber array of an optical module using a structure for fixing the length of an optical fiber array and testing an optical module, comprising the following steps:

[0086] S1: Select an appropriate cover plate 3 based on the target optical fiber array, and install the cover plate 3 on the base 1. In this step, only the elastic loading unit adapted to the first positioning hole 31 is assembled, and the elastic loading unit structure corresponding to the second positioning hole 32 is not assembled. At this time, the structure of the optical fiber array used for fixing the length and testing the optical module is used as a fixed-length fiber cutting tool for the optical fiber array. This flexible configuration method allows the structure of the optical fiber array used for fixing the length and testing the optical module to be adjusted according to different work requirements, thereby improving the versatility of the equipment.

[0087] S2: Mark the contact point between the front end of the second positioning hole 32 and the base 1. This mark will be used as a reference point for subsequent fiber cutting to ensure the accuracy of the fiber cutting position. Then, the fiber length is determined by the length of the contoured hole 33. Place FA head A into the first positioning hole 31 and press it with the elastic loading unit to ensure that FA head A remains stable during the fiber cutting process. Perform the fiber cutting operation at the marked position. After cutting the optical fiber, take out FA head A, combine the optical fibers of the optical fiber array, and then perform the fiber stripping operation. Finally, insert the processed optical fiber into the MT ferrule to form MT head B. This series of operations ensures the precise control of the optical fiber length and the correct formation of MT head B.

[0088] S3: Assemble the elastic loading unit in the second positioning hole 32. Place the assembled optical fiber array with FA head A and MT head B into the structure of the optical fiber array used for length determination and testing of optical modules. First, clamp FA head A through the elastic loading unit, and then clamp MT head B through another elastic loading unit. This double clamping ensures the stability of the optical fiber array in subsequent operations. After the fiber length is determined, apply a small amount of UV glue on the tail end of MT head B to fix the MT ferrule of MT head B. Then release the elastic loading unit and take out the optical fiber array for glue curing. This step realizes the precise length determination of the optical fiber array and the reliable fixation of MT head B.

[0089] S4: After the fiber array is solidified, put it back into the fixture for length testing. This final test step ensures that each product can meet the expected accuracy requirements and is a key link in quality control.

[0090] The structure and method of the optical fiber array for length determination and testing of optical modules of the present invention have the following advantages over the prior art:

[0091] 1. High precision: The precision of the optical fiber array length is greatly improved through the carefully designed cover plate structure and contoured holes combined with precise elastic loading units.

[0092] 2. Easy operation: Modular design and systematic operation methods enable even non-professionals to quickly master the operation essentials, reducing the dependence on the operator's professional skills.

[0093] 3. Improved efficiency: The multifunctional integrated design (fixed length and testing) reduces the intermediate links and equipment switching time, significantly improving production efficiency.

[0094] 4. Strong adaptability: By adjusting the pressure of the compression spring and replacing covers of different specifications, it can adapt to various types of optical fiber arrays, enhancing the versatility of the equipment.

[0095] 5. Easy maintenance: Modular assembly design facilitates parts replacement and maintenance, reduces maintenance costs and extends equipment life.

[0096] 6. Stable quality: Systematic operation methods and final length testing ensure the consistency and reliability of product quality.

[0097] 7. Cost-effectiveness: Improve production efficiency and reduce maintenance costs, while reducing dependence on highly skilled operators, thereby reducing overall production costs.

[0098] These advantages make the structure and method of the optical fiber array for fixing the length and testing the optical module of the present invention not only able to effectively solve the problems existing in the prior art, but also provide strong support for the large-scale production of optical fiber arrays and promote the technological progress of the entire optical communication industry.

[0099] It should be understood that the size of the serial numbers of the steps in the above embodiments does not 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 embodiments of the present application.

[0100] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the appended claims of the present invention.

Claims

1. A structure of an optical fiber array for fixing the length and testing an optical module, characterized in that: The invention comprises a base (1) and a cover plate (3) detachably connected to the base (1); the cover plate (3) is processed with at least one first positioning hole (31) for positioning an FA head (A) of an optical fiber array and a second positioning hole (32) for positioning an MT head (B) of the optical fiber array; each first positioning hole (31) and the second positioning hole (32) are connected via a profiling hole (33); the length of the profiling hole (33) corresponds to a target fiber length; the base (1) is provided with an elastic loading unit for clamping the FA head (A) located in the first positioning hole (31) and the MT head (B) located in the second positioning hole (32); the cover plate (3) is provided with There are two first positioning holes (31) and one second positioning hole (32) arranged non-collinearly, one first positioning hole (31) is connected to the second positioning hole (32) through a horizontal profiling hole (33), and one first positioning hole (31) is connected to the second positioning hole (32) through an inclined profiling hole (33); the base (1) is provided with three elastic loading units, wherein two bases (1) are arranged one-to-one with the two first positioning holes (31), one elastic loading unit base (1) is arranged corresponding to the second positioning hole (32), and the elastic loading unit arranged corresponding to the first positioning hole (31) and the elastic loading unit arranged corresponding to the second positioning hole (32) are perpendicular to each other.

2. The structure of the optical fiber array for fixing the length and testing the optical module according to claim 1, characterized in that: The elastic loading unit comprises a crimping slider (6) slidably connected to the base (1), a connecting rod (8) connected to the crimping slider (6), and a handle (13) connected to the connecting rod (8); the connecting rod (8) is connected to the base (1) via a stopper (11) so as to be axially displaceable; a compression spring (7) is sleeved on the connecting rod (8); one end of the compression spring (7) is in contact with the crimping slider (6) and the other end is in contact with the stopper (11).

3. The structure of the optical fiber array for fixing the length and testing the optical module according to claim 2, characterized in that: The crimping slider (6) is provided with a T-shaped hole, and the end of the connecting rod (8) is provided with a T-shaped boss feature capable of being plugged into and matched with the T-shaped hole.

4. The structure of the optical fiber array for fixing the length and testing the optical module according to claim 2, characterized in that: A silicone pad (4) is provided at the end of the crimping slider (6).

5. The structure of the optical fiber array for fixing the length and testing the optical module according to claim 1, characterized in that: The base (1) and / or the cover plate (3) are both provided with a groove for limiting the position of the crimping slider (6), and the groove is communicated with the first positioning hole (31) or the second positioning hole (32).

6. The structure of the optical fiber array for fixing the length and testing the optical module according to claim 1, characterized in that: Two elastic loading units arranged corresponding to the two first positioning holes (31) share a handle (13).

7. The structure of the optical fiber array for fixing the length and testing the optical module according to claim 2, characterized in that: A loading adjustment block (10) for adjusting the pressure of the compression spring is coaxially mounted on the connecting rod (8).

8. A method for lengthening and testing an optical fiber array of an optical module using the structure for lengthening and testing an optical fiber array of an optical module as claimed in any one of claims 1 to 7, characterized in that: The steps include: S1, based on the target optical fiber array, a cover plate (3) is selected, and the cover plate (3) is installed on the base, wherein only the elastic loading unit adapted to the first positioning hole (31) is assembled, and the elastic loading unit structure adapted to the second positioning hole (32) is not assembled, and the structure of the optical fiber array for fixing the length and testing the optical module is used as a tool for cutting the length of the optical fiber array; S2, marking the contact point between the front end of the second positioning hole (32) and the base (1), determining the fiber length by the length of the profiling hole (33), placing the FA head (A) into the first positioning hole (31) and pressing it by the elastic loading unit, and then cutting the fiber at the marked position. After cutting the fiber, taking out the FA head (A), combining the optical fibers of the optical fiber array, stripping the fibers, and inserting them into the MT ferrule to form the MT head (B); S3, assembling the elastic loading unit in the second positioning hole (32), placing the assembled optical fiber array with the FA head (A) and the MT head (B) into the structure of the optical fiber array of the fixed length and test optical module, first clamping the FA head (A) through the elastic loading unit, and then clamping the MT head (B) through the elastic loading unit, after the fiber length is fixed, fix the MT ferrule of the MT head (B) with UV glue on the tail end of the MT head (B), and then release the elastic loading unit, take out the optical fiber array and solidify the glue; S4, after the optical fiber array is solidified, the optical fiber array is put back into the fixture to perform a length test.

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