Optical fiber array with positioning structure and positioning mechanism and fixing device for preparation of optical fiber array

Abstract

The invention belongs to the technical field of optical fibers, and particularly discloses an optical fiber array with a positioning structure and a positioning mechanism and a fixing device for preparation of the optical fiber array. According to the optical fiber array with the positioning structure, the positioning part can be arranged on the bare optical fiber section of the optical fiber array. The positioning part can adopt a positioning groove design, and the positioning groove is arranged above a central connecting line of the two stress areas along the length direction of the optical fiber and corresponds to the surface of the bare optical fiber section at the radial position of the fiber core. The optical fiber array with the positioning part can realize rapid and accurate positioning of an optical fiber angle during preparation, the positioning precision is stable and reliable, the problems of low efficiency, poor precision stability, high labor intensity and the like of an angle positioning mode in the existing optical fiber preparation process are effectively solved, the preparation efficiency of the optical fiber array is remarkably improved, and the production cost is reduced. The labor intensity and the labor cost are reduced.

Description

Technical Field

[0001] This invention belongs to the field of optical fiber technology, specifically relating to an optical fiber array with a positioning structure and the positioning mechanism and fixing device used in its fabrication. Background Technology

[0002] In the optical fiber manufacturing process, especially in the fabrication of special fibers such as polarization-maintaining fibers, the angular positioning accuracy directly determines core indicators such as polarization maintenance performance, making it a crucial step in ensuring fiber product quality. To achieve precise angular positioning, existing technologies commonly employ cat's-eye assisted positioning. This method, with its intuitive observation feedback characteristics, has become the mainstream technical solution for current optical fiber angle calibration.

[0003] In existing technologies, angle positioning during the optical fiber fabrication stage is typically achieved using a cat's-eye assisted positioning method. The specific operation process is as follows: First, the optical fiber to be processed is stripped to remove the outer coating layer, resulting in bare fiber. Then, the operator places the stripped bare fiber onto a dedicated cat's-eye assisted positioning plate. This plate typically has a V-shaped groove that matches the shape of the bare fiber, used to support and initially limit the fiber's position, preventing lateral displacement. Next, the operator manually rotates and adjusts the circumferential angle of the bare fiber, and uses specialized optical observation equipment to observe the cat's-eye interference fringes formed on the fiber end face in real time. The symmetry and clarity of the interference fringes are used to determine if the fiber angle is properly adjusted. After the angle of a single fiber is adjusted to the correct value, adhesive is applied to the cat's-eye assisted positioning plate, and a UV lamp is used to fix the fiber angle before proceeding to the next fabrication step.

[0004] However, the existing positioning methods described above have many insurmountable drawbacks in practical applications, specifically: First, the positioning efficiency is extremely low. Existing solutions require operators to manually rotate and adjust each fiber individually, and the angle calibration of each fiber requires repeated observation of interference fringe characteristics using optical instruments. This cumbersome adjustment process results in a long positioning time for a single fiber, failing to meet the high-efficiency production requirements of mass fiber manufacturing. Second, the operation is highly dependent and the accuracy stability is poor. The core judgment criterion for angle adjustment (interference fringe symmetry) relies entirely on the operator's visual observation experience and operational proficiency. The lack of standardized positioning benchmarks and the differences in judgment thresholds among different operators easily lead to fluctuations in fiber angle positioning accuracy, thus affecting the consistency of fiber polarization performance. Third, the labor intensity is high. The individual fiber adjustment method requires operators to maintain high concentration for extended periods to observe subtle fringe changes, easily causing visual fatigue, further exacerbating the instability of positioning accuracy, and significantly increasing labor costs. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention aims to provide an optical fiber array with a positioning structure. This optical fiber array has a built-in positioning unit that enables rapid and accurate positioning of the optical fiber angle during fabrication. The positioning accuracy is stable and reliable, effectively solving the problems of low efficiency, poor accuracy stability, and high labor intensity in existing angle positioning methods during optical fiber fabrication. This significantly improves the fabrication efficiency of optical fiber arrays and reduces labor intensity and labor costs.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A fiber optic array with a positioning structure, wherein the bare fiber segments of the fiber optic array are provided with positioning parts for fiber optic angle positioning.

[0007] Furthermore, the positioning part is disposed on the surface of the bare optical fiber segment above the line connecting the centers of the two stress zones along the length direction of the optical fiber.

[0008] Furthermore, the positioning part is a positioning groove, which is formed on the surface of the bare optical fiber segment at the corresponding radial position of the fiber core.

[0009] Furthermore, the positioning groove is a V-shaped groove.

[0010] Furthermore, the positioning part is a cross-section opened parallel to the direction of the line connecting the centers of the two stress zones.

[0011] Furthermore, the bare optical fiber segment below the cross-section has inclined surfaces on both sides that slope towards the middle.

[0012] Furthermore, the positioning part is a hole located on both sides of the fiber core perpendicular to the line connecting the centers of the two stress zones, and the hole is located in the bare fiber segment along the fiber axis.

[0013] Accordingly, the present invention also proposes a positioning mechanism for preparing the above-mentioned optical fiber array, including a cat's eye auxiliary slot plate, wherein the bare optical fiber segments of the optical fiber are arranged and pressed onto the cat's eye auxiliary slot plate by a positioning plate; a plurality of first positioning pins are arranged and fixed below the positioning plate, and the first positioning pins are engaged in the positioning slots of the corresponding bare optical fiber segments.

[0014] As another embodiment of the present invention, the positioning mechanism of the fiber array proposed in the present invention includes an adjustment cat's eye auxiliary slot plate, wherein the bare fiber segments of the fiber are arranged and pressed onto the bare fiber segments on the adjustment cat's eye auxiliary slot plate by a positioning plate; the bottom of the positioning plate abuts against the end face above the bare fiber segments.

[0015] As another embodiment of the present invention, the positioning mechanism of the fiber array proposed in the present invention includes an adjustment cat's eye auxiliary slot plate, on which bare fiber segments are arranged; a positioning plate is provided at the end of the bare fiber segment, and multiple sets of corresponding second positioning pins are arranged horizontally on the positioning plate, the second positioning pins being inserted into two holes on the end face of the corresponding bare fiber segment.

[0016] Accordingly, the present invention also proposes a fixing device for fiber array fabrication, including the above-mentioned positioning mechanism, as well as an assembly fixture and a pressure head; the adjusting cat's eye auxiliary slot plate is placed on the assembly fixture, and the pressure head on the assembly fixture is pressed against the positioning plate.

[0017] The beneficial effects of this invention are as follows: 1. In this invention, when a positioning groove is opened on the surface of a bare optical fiber segment, the bare optical fiber segment only needs to be arranged and placed on the adjustment cat's eye auxiliary groove plate during the optical fiber array preparation process. Then, the positioning plate is pressed onto the adjustment cat's eye auxiliary groove plate, and the optical fiber is rotated and adjusted so that the positioning pin at the bottom of the positioning plate is precisely engaged with the positioning groove on the bare optical fiber segment. The positioning of the optical fiber angle can be completed in one go, ensuring that the positioning angle of each optical fiber is uniform and accurate, thereby ensuring the consistency of the optical fiber polarization maintenance performance and improving the quality stability of the final product.

[0018] 2. The present invention features a D-type and triangular design for bare optical fiber segments. When the positioning part is a cross-section on the surface of the bare optical fiber segment, during the fabrication of the optical fiber array, the positioning plate is pressed downward onto the bare optical fiber segments arranged in the adjustment cat's eye auxiliary slot plate. The optical fiber is rotated and adjusted so that the positioning plate and the cross-section on the bare optical fiber segment are engaged and matched, thus completing the rapid positioning of the optical fiber angle in one go, significantly improving the optical fiber positioning efficiency.

[0019] 3. When the positioning part of the present invention is a hole opened in the bare optical fiber segment, after the bare optical fiber segments are arranged and placed on the cat's eye auxiliary slot plate, the optical fiber is rotated and adjusted so that the hole in the bare optical fiber segment corresponds to the positioning pin on the positioning plate at the end and is inserted into the positioning pin. The optical fiber angle can be quickly positioned in one go, which significantly improves the optical fiber positioning efficiency.

[0020] 4. This invention achieves angle positioning through precise mechanical structure matching. The matching relationship between the positioning plate and the cross-section, or between the positioning pin and the positioning slot / hole, provides a standardized positioning benchmark for the fiber angle, completely eliminating the reliance on the operator's visual observation experience and operational proficiency. Furthermore, this process eliminates the need for repeated manual adjustments and observations, significantly reducing the positioning time for a single fiber and enabling synchronous positioning of multiple fibers. This effectively overcomes the efficiency bottleneck of existing technologies that require individual fiber adjustments, meeting the high-efficiency production needs of modern fiber mass production. The positioning process is simple to operate, requiring no complex observation and adjustment operations, greatly reducing the labor intensity of operators, decreasing reliance on skilled operators, and thus reducing the company's labor costs.

[0021] 3. This invention offers strong positioning stability, facilitating smooth progress in subsequent manufacturing processes. The cooperation between the positioning plate and the cross-section, or the positioning pin and the positioning groove / hole, not only achieves angular positioning but also provides stable limiting for the optical fiber. This prevents the optical fiber from rotating circumferentially or shifting laterally during subsequent curing, encapsulation, and other manufacturing processes, further ensuring the processing accuracy of subsequent steps, reducing product scrap due to optical fiber displacement, and improving the overall manufacturing pass rate. Attached Figure Description

[0022] Figure 1 This is a diagram of the fiber optic array structure of Embodiment 1 of the present invention; Figure 2 This is a diagram of the fiber optic array structure of Embodiment 2 of the present invention; Figure 3 This is a diagram of the fiber optic array structure of Embodiment 3 of the present invention; Figure 4 This is a diagram of the fiber optic array structure of Embodiment 4 of the present invention; Figure 5 This is a schematic diagram of the installation of the positioning structure in Embodiment 1 of the present invention; Figure 6 for Figure 5 Enlarged view of point A in the middle; Figure 7 This is a partial cross-sectional view of the positioning structure in Embodiment 1 of the present invention; Figure 8 This is a schematic diagram of the fixing device in Embodiment 1 of the present invention. Detailed Implementation

[0023] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are for illustrative purposes only and are not intended to limit the scope of the invention.

[0024] Example 1: like Figure 1 As shown, this invention proposes an optical fiber array with a positioning structure. The bare fiber segment 41 of the optical fiber array is provided with a positioning part for optical fiber angle positioning. In this embodiment, the positioning part is designed as a positioning groove 410, which is located on the surface of the bare fiber segment above the line connecting the centers of the two stress zones, corresponding to the radial position of the fiber core, along the fiber length direction. Preferably, the positioning groove 410 is a V-shaped groove.

[0025] like Figure 5-7As shown, based on the fiber array structure proposed in this embodiment, this invention proposes a positioning mechanism for fiber array fabrication. This positioning mechanism includes an adjustment peephole auxiliary slot plate 1 and a positioning plate 2. Bare fiber segments 41 of the fiber 4 are arranged and pressed onto the adjustment peephole auxiliary slot plate 1 via the positioning plate 2. Each bare fiber segment 41 of the fiber 4 has a V-shaped positioning groove 410 on its surface. Multiple first positioning pins 21 are arranged and fixed below the positioning plate 2, with each first positioning pin 21 corresponding one-to-one with the fiber 4 below. After the fiber 4 is adjusted to its position, the first positioning pin 21 is precisely engaged in the positioning groove 410 corresponding to the fiber 4.

[0026] The positioning mechanism provided by this invention is also applicable to optical fibers including ordinary optical fibers with light guiding regions, such as single-mode optical fibers, multimode optical fibers, and polarization-maintaining optical fibers, as well as optical fibers or optical rods without light guiding regions, and is not limited to the optical fiber structures proposed in this invention.

[0027] When using this invention, simply arrange the bare optical fiber segments 41 with pre-cut positioning slots 410 on the peephole adjustment auxiliary slot plate 1, then press the positioning plate 2 onto the peephole adjustment auxiliary slot plate 1, and adjust the optical fiber 4 so that the first positioning pin 21 at the bottom of the positioning plate 2 precisely engages with the positioning slot 410 of the cladding of the optical fiber 4. This allows the positioning of the optical fiber 4 angle to be completed in one go, ensuring that the positioning angle of each optical fiber 4 is uniform and accurate, thereby ensuring the consistency of the polarization maintenance performance of the optical fiber 4 and improving the quality stability of the final product.

[0028] like Figure 8 As shown, based on the aforementioned positioning mechanism, this invention also proposes a fixing device for fiber optic array fabrication, including the aforementioned positioning mechanism, an assembly fixture 6, and pressure heads 5. In specific operation, the adjusting cat's eye auxiliary slot plate 1 and the V-shaped slot plate 32 of the fiber optic array are placed sequentially and alternately on the assembly fixture 6. The corresponding pressure heads 5 on the assembly fixture 6 are then pressed against the positioning plate 2 on the adjusting cat's eye auxiliary slot plate 1 and the cover plate 31 on the V-shaped slot plate 32, respectively. This device enables rapid pressing and fixing of the positioning plate 2 and the cover plate 31, thereby improving the angle adjustment and rapid positioning of the fiber optic cable 4.

[0029] The method for fabricating an optical fiber array using the above-mentioned fixing device specifically includes the following steps: S1. Fix multiple optical fibers side by side with tape, use an optical fiber thermal stripper to strip the fibers, the stripping length is about 20mm, and then clean the optical fibers with lint-free paper soaked in alcohol. S2. Use a cleaver to cut the fiber, and cut the end of the bare fiber segment 41 flush, so that the remaining length of the bare fiber segment 41 is about 10mm. S3. Place the V-shaped groove plate 32 and the peephole adjustment auxiliary groove plate 1 in sequence at intervals on the assembly fixture 6. The peephole adjustment auxiliary groove plate 1 is placed in front of the V-shaped groove plate 32, with a distance of 0.5~1mm between them, and the V-shaped grooves on the V-shaped groove plate 32 and the peephole adjustment auxiliary groove plate 1 are visually aligned. S4. Under a microscope, multiple optical fibers are arranged in the V-groove of the V-groove plate 32 and the adjustment cat's eye auxiliary groove plate 1; the distance between the stripped end of the optical fiber and the V-groove plate 32 is 3.5~4mm; the bare optical fiber segment 41 at the end extends out of the adjustment cat's eye auxiliary groove 1; S5. The positioning plate 2 is pressed onto the cat-eye auxiliary slot plate 1 and pressed by the corresponding pressure head 5. The non-bare fiber segment 41 of the optical fiber is rotated and adjusted in sequence so that the first positioning pin 21 on the positioning plate 2 is neatly locked in the positioning slot 410 of the corresponding optical fiber 4, so that the optical fiber is quickly adjusted into place. S6. Cover the top of the V-groove plate 32 with the cover plate 31 and press it in place with the corresponding pressure head 5; S7. Apply photosensitive adhesive to one end of the cat-eye auxiliary groove plate 1, turn on the UV lamp, and cure for 6 seconds; apply adhesive to the end of the V-groove near the peeling opening, and turn on the UV lamp to fix it; S8. Use a fiber removal pen to cut off and remove the optical fiber connecting to the cat-eye auxiliary slot 1; S9. Place the V-groove plate 32 and the bare fiber segment 41 on the polishing auxiliary groove plate, with the fiber arranged in the V-groove of the polishing auxiliary groove plate; then press the glass cover plate onto the V-groove area of ​​the polishing auxiliary groove plate and press it with the corresponding pressure head 5. S10. Apply epoxy adhesive from the end of the grinding auxiliary plate to fill the area around the bare optical fiber segment 41 with adhesive, and heat to cure for 5 hours. S11. Use a fiber removal pen to cut and remove the optical fiber connected to the grinding auxiliary slot plate; S12. Grind the fiber ends at the ends of the V-groove plate 32 and the auxiliary groove plate; S13. Immerse the glass cover plate 31 and the V-groove area of ​​the grinding auxiliary groove plate in a surfactant solution. After 5 hours, remove the grinding auxiliary groove plate and the glass cover plate, and then clean the optical fiber to obtain the finished fiber array.

[0030] This invention achieves angle positioning through precise mechanical structure matching. The cooperation between the first positioning pin 21 and the positioning groove 410 provides a standardized positioning reference for the optical fiber angle, completely eliminating the reliance on the operator's visual observation experience and operational proficiency. Furthermore, this process eliminates the need for repeated manual adjustments and observations, significantly reducing the positioning time for a single optical fiber and enabling synchronous positioning of multiple optical fibers. This effectively overcomes the efficiency bottleneck of individual fiber adjustments in existing technologies, meeting the high-efficiency production requirements of modern optical fiber mass production. The positioning process is simple to operate, requiring no complex observation and adjustment operations, greatly reducing the labor intensity of operators, decreasing reliance on skilled operators, and thus reducing the company's labor costs.

[0031] This invention offers strong positioning stability, facilitating smooth progress in subsequent manufacturing processes. The cooperation between the first positioning pin 21 and the positioning groove 410 not only achieves angular positioning but also provides a stable limiting effect on the optical fiber 4, preventing circumferential rotation or lateral displacement of the optical fiber during subsequent curing, encapsulation, and other manufacturing processes. This further ensures the processing accuracy of subsequent processes, reduces product scrap due to optical fiber displacement, and improves the overall manufacturing pass rate.

[0032] Example 2: like Figure 2 As shown, the difference from Embodiment 1 above is that the positioning part provided on the bare fiber segment 41 in the fiber array in this embodiment is a cross section 411 opened parallel to the direction of the line connecting the centers of the two stress zones, so that the bare fiber segment 41 in this embodiment has a D-shaped design.

[0033] In addition, the positioning mechanisms in this embodiment differ from those in Embodiment 1. The positioning mechanism for the fabrication of the fiber array includes an adjustment cat-eye auxiliary slot plate and a positioning plate. The bare fiber segments 41 are arranged and pressed onto the bare fiber segments 41 by the positioning plate. The bottom of the positioning plate abuts against the cross section 411 above the bare fiber segments 41.

[0034] In this embodiment, when using the positioning mechanism, the bare optical fiber segments 41 are arranged and placed in the adjustment peephole auxiliary slot plate, and then the positioning plate is pressed onto the adjustment peephole auxiliary slot plate. The bottom of the positioning plate abuts against the cross section 411 above the bare optical fiber segment 41, which can realize the rapid positioning of the optical fiber angle and ensure that the positioning angle of each optical fiber is uniform and accurate.

[0035] Furthermore, the fixing device in this embodiment is similar to the fixing device described above in terms of usage method, and its usage principle will not be described in detail here.

[0036] Example 3: like Figure 3As shown, the difference from embodiment 2 above is that, in this embodiment, in addition to setting a cross-section 411 above the bare optical fiber segment 41, there are also inclined surfaces 412 on both sides of the bare optical fiber segment below the cross-section that are inclined towards the middle and cooperate with the adjustment cat's eye auxiliary groove, so that the bare optical fiber segment is triangular in shape as a whole.

[0037] In this embodiment, the positioning mechanism corresponding to the fiber array can adopt the same positioning plate structure as in embodiment 2. During preparation and use, the bare fiber segments 41 are arranged and placed in the adjustment cat's eye auxiliary slot plate. The adjustment fiber is engaged with the adjustment cat's eye auxiliary slot through the inclined surfaces 412 on both sides. Then, the positioning plate is pressed onto the adjustment cat's eye auxiliary slot plate. The bottom of the positioning plate abuts against the cross section 411 above the bare fiber segment 41, which can quickly position the fiber angle and ensure that the positioning angle of each fiber is uniform and accurate.

[0038] Furthermore, the fixing device in this embodiment is similar to the fixing device described above in terms of usage method, and its usage principle will not be described in detail here.

[0039] Example 4: like Figure 4 As shown, the difference from the above embodiment is that the positioning part in this embodiment is a hole 413 located on both sides of the fiber core perpendicular to the line connecting the centers of the two stress zones. The hole 413 is located in the bare fiber segment 41 along the fiber axis.

[0040] The corresponding positioning mechanism includes an adjustment peephole auxiliary slot plate, a positioning plate, and multiple sets of second positioning pins. The bare fiber segments 41 of the optical fiber are arranged on the adjustment peephole auxiliary slot plate. A positioning plate is provided at the end of the bare fiber segment 41. Multiple sets of second positioning pins are arranged horizontally on the positioning plate. Each set of second positioning pins has two pins arranged horizontally corresponding to each other. The second positioning pins are inserted into two holes 413 on the end face of the corresponding bare fiber segment 41.

[0041] During preparation and use, the positioning plate is placed at the end of the bare optical fiber segment 41. After the bare optical fiber segments 41 are arranged and placed in the cat's eye auxiliary slot plate, the optical fiber is adjusted so that the two holes 413 on the end face of the bare optical fiber segment 41 are horizontally aligned with the two second positioning pins on the positioning plate. The holes are then inserted into the second positioning pins to achieve rapid positioning of the optical fiber angle, ensuring that the positioning angle of each optical fiber is uniform and accurate.

[0042] Furthermore, the fixing device in this embodiment is similar to the fixing device described above in terms of usage method, and its usage principle will not be described in detail here.

[0043] In summary, it is well known to those skilled in the art that one of the core challenges in fiber optic array fabrication is the individual positioning and calibration of multiple optical fibers. Existing peephole-assisted positioning methods require adjusting the angle of each fiber individually and observing and confirming each fiber, resulting in the positioning process accounting for an excessively long portion of the entire fabrication process. This invention eliminates the need for manual rotation and optical observation of each fiber individually. Multiple fibers with pre-set positioning slots can be simultaneously placed in an array of V-slots on the peephole-assisted slot plate. Through the interaction between the positioning plate and the cross-section, or between the positioning pin and the positioning slot / hole, rapid and accurate positioning of the angles of multiple fibers is achieved. This method transforms the traditional "individual fiber positioning" into "batch positioning," significantly reducing the increase in positioning time with the number of fibers, substantially shortening the overall fabrication cycle of the fiber optic array, and meeting the high-efficiency mass production requirements of large-scale fiber optic arrays.

[0044] In the fiber optic array fabrication process, positioning accuracy directly affects the effectiveness of subsequent processes such as curing, encapsulation, and coupling. The positioning structure of this invention can be directly adapted to existing peephole-type auxiliary slots without requiring significant modifications to existing array fabrication equipment. The positioned fibers maintain a stable attitude and will not rotate circumferentially or shift laterally due to minor disturbances in subsequent processes. This stable positioning ensures that the fiber array's arrangement remains unchanged during subsequent curing, improves encapsulation accuracy, reduces secondary calibration work in the coupling stage, and achieves a smooth connection between the "positioning-curing-encapsulation" processes, further improving the efficiency and yield of the entire fiber optic array fabrication process.

[0045] Obviously, the embodiments described above are only some embodiments of this application, not all embodiments. The accompanying drawings show preferred embodiments of this application, but do not limit the patent scope of this application. This application can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this application's specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the scope of patent protection of this application.

Claims

1. A fiber optic array with a positioning structure, characterized in that: The bare fiber segments of the fiber array are equipped with positioning parts for fiber angle positioning.

2. The fiber optic array with positioning structure according to claim 1, characterized in that: The positioning part is located on the surface of the bare optical fiber segment above the line connecting the centers of the two stress zones, along the length of the optical fiber.

3. The fiber optic array with positioning structure according to claim 2, characterized in that: The positioning part is a positioning groove, which is formed on the surface of the bare optical fiber segment at the corresponding radial position of the fiber core.

4. The fiber optic array with positioning structure according to claim 3, characterized in that: The positioning groove is a V-shaped groove.

5. The fiber optic array with positioning structure according to claim 2, characterized in that: The positioning section is a cross-section opened parallel to the line connecting the centers of the two stress zones.

6. The fiber optic array with positioning structure according to claim 5, characterized in that: The bare optical fiber segment below the cross-section has inclined surfaces on both sides that slope towards the middle.

7. The fiber optic array with positioning structure according to claim 1, characterized in that: The positioning part is a hole located on both sides of the fiber core perpendicular to the line connecting the centers of the two stress zones, and the hole is located in the bare fiber segment along the fiber axis.

8. A positioning mechanism for fabricating the fiber optic array of claim 3 or 4, comprising an adjusting cat's eye auxiliary slot plate, characterized in that: The bare fiber segments of the optical fiber are arranged and pressed onto the cat-eye auxiliary slot plate by a positioning plate; a plurality of first positioning pins are arranged and fixed below the positioning plate, and the first positioning pins are locked in the positioning slots of the corresponding bare fiber segments.

9. A positioning mechanism for fabricating the fiber optic array of claim 5 or 6, comprising an adjusting cat's eye auxiliary slot plate, characterized in that: The bare fiber segments of the optical fiber are arranged and pressed onto the adjustment cat's eye auxiliary slot plate by positioning plates; the bottom of the positioning plate abuts against the end face above the bare fiber segments.

10. A positioning mechanism for fabricating the fiber optic array of claim 7, comprising an adjustment cat's eye auxiliary slot plate, characterized in that: The bare fiber segments of the optical fiber are arranged on the cat-eye auxiliary slot plate; a positioning plate is provided at the end of the bare fiber segment, and multiple sets of corresponding second positioning pins are arranged horizontally on the positioning plate. The second positioning pins are inserted into two holes on the end face of the corresponding bare fiber segment.

11. A fixing device for fabricating an optical fiber array, characterized in that: It includes the positioning mechanism as described in any one of claims 8-10, as well as an assembly fixture and a pressure head; the adjusting cat's eye auxiliary slot plate is placed on the assembly fixture, and the pressure head on the assembly fixture presses against the positioning plate.

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