Optical fiber fixing mechanism and fiber combining device

Abstract

The utility model relates to the technical field of polarization maintaining optical fiber combining, in particular to an optical fiber fixing mechanism and a fiber combining device. The optical fiber fixing mechanism comprises a first bearing block and a second bearing block; the first bearing block is provided with an optical fiber positioning hole array for positioning a plurality of first optical fiber sections, so that the first optical fiber sections can be well positioned, pressure cannot be applied to the first optical fiber sections, and deformation of optical fibers due to stress is avoided; the second bearing block is provided with a receding structure array for the second optical fiber sections to penetrate through, and each receding structure and one optical fiber positioning hole are coaxially arranged, so that each second optical fiber section can be positioned by utilizing the receding structure array, equivalently, each second optical fiber section is limited, and due to the arrangement, the positioning accuracy is improved. No matter how many fibers are combined, the center deviation of each second optical fiber section is controllable; therefore, by using the optical fiber fixing mechanism provided by the utility model, the yield of produced products can be effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to polarization maintaining optical fiber and fiber technology field, especially a kind of optical fiber fixing mechanism and fiber device. BACKGROUND

[0002] When polarization maintaining optical fiber is fibered, fiber device needs to be used, and fiber device includes optical fiber fixing mechanism and glue injection mechanism, and fiber mechanism includes bearing block with V-shaped groove array and cover plate arranged at the top of V-shaped groove, and the first optical fiber segment with stripping cladding layer is inserted into V-shaped groove in prior art, and cover plate is slightly contacted with optical fiber to position first optical fiber segment, then second optical fiber segment with cladding layer outside V-shaped groove is rotated, and cat eye position of first optical fiber segment is observed when rotating, and rotation is stopped when cat eye is adjusted to preset position, and second optical fiber segment outside V-shaped groove is glued by glue injection mechanism.

[0003] The problem of prior art is that the yield is relatively low, and the first aspect is that cover plate is not pressed in place, which can cause first optical fiber segment not to be well positioned, and excessive pressing of cover plate can constrain the rotation of first optical fiber segment, for example, when second optical fiber segment is rotated and adjusted by 30°, first optical fiber segment only rotates by 25° under the constraint of cover plate, which can cause stress in optical fiber, and once glue injection is completed, optical fiber can be deformed after stress release; the second aspect is that second optical fiber segment is simply glued side by side, and since the outer diameter of second optical fiber segment has tolerance, the center deviation will be larger as the number of fiber increases. INVENTION CONTENTS

[0004] The technical problem to be solved by the embodiment of the utility model is to provide an optical fiber fixing mechanism to solve the problem of low yield of products produced by fiber device in prior art.

[0005] In the first aspect, the utility model embodiment provides an optical fiber fixing mechanism for positioning optical fiber, and the optical fiber includes first optical fiber segment with stripping cladding layer and second optical fiber segment with cladding layer, and the optical fiber fixing mechanism includes: first bearing block, which is provided with optical fiber positioning hole array, the array direction of optical fiber positioning hole array is perpendicular to the axial direction of each optical fiber positioning hole in optical fiber positioning hole array; the optical fiber positioning hole is used for positioning the first optical fiber segment; second bearing block, which is arranged in the axial direction of optical fiber positioning hole and spaced from the first bearing block to form glue injection space between the first bearing block and the second bearing block; the second bearing block is provided with empty structure array, and the empty structure array includes a plurality of empty structures corresponding to a plurality of optical fiber positioning holes one by one, and each empty structure is coaxially arranged with the corresponding optical fiber positioning hole; the empty structure is used for positioning the second optical fiber segment.

[0006] Optionally, the first bearing block is provided with a first groove on a side facing the second bearing block, the array of fiber positioning holes is arranged on a groove bottom of the first groove, a first notch is arranged on the first bearing block in a first direction, the first notch is communicated with the side of the first bearing block facing the second bearing block and the first groove, the second bearing block is provided with a second groove on a side facing the first bearing block, a second notch is arranged on the second bearing block in the first direction, the second notch is communicated with the side of the second bearing block facing the first bearing block and the second groove, and the first direction is perpendicular to the array direction and the axial direction.

[0007] Optionally, the avoidance structure is arranged on a groove wall of the second groove away from the second notch, and the avoidance structure is a first circular-arc groove.

[0008] Optionally, a plurality of second circular-arc grooves are arranged on a groove wall of the first groove away from the first notch, the plurality of second circular-arc grooves correspond to the plurality of fiber positioning holes one by one, and each second circular-arc groove is coaxially arranged with the corresponding fiber positioning hole, so that the second circular-arc groove can be used for positioning the second fiber segment.

[0009] Optionally, the fiber fixing mechanism further comprises a coarse limiting block, the coarse limiting block is arranged on a side of the array of avoidance structures away from the first bearing block, the coarse limiting block is provided with a coarse limiting through hole communicated with the array of avoidance structures, and in the axial direction of the fiber positioning hole, a projection of the coarse limiting through hole completely covers a projection of the array of avoidance structures.

[0010] Optionally, the second bearing block is provided with a plug groove communicated with the second groove on a side away from the first bearing block, and the coarse limiting block is inserted into the plug groove.

[0011] Optionally, the fiber fixing mechanism further comprises a connecting structure connected with the first bearing block and the second bearing block, so that the avoidance structures are coaxially arranged with the corresponding fiber positioning holes.

[0012] Optionally, the connecting structure comprises two plugs, and two ends of each plug are respectively inserted into the first bearing block and the second bearing block; in the array direction, the two plugs are arranged on two sides of the array of fiber positioning holes.

[0013] Optionally, the avoidance structure is an avoidance hole.

[0014] In a second aspect, the utility model further provides a fiber fixing device, which comprises the fiber fixing mechanism and the glue injection mechanism.

[0015] Compared with the prior art, the optical fiber fixing mechanism has the beneficial effects that: the optical fiber fixing mechanism comprises a first bearing block and a second bearing block, the first bearing block is provided with an optical fiber positioning hole array for positioning a plurality of first optical fiber sections, the second bearing block is arranged at intervals with the first bearing block in the axial direction of the optical fiber mounting shaft, the second bearing block is provided with an empty structure array corresponding to the optical fiber positioning hole array, and the empty structure array is used for the second optical fiber section to pass through.

[0016] In the first aspect, the optical fiber positioning hole can be used to position the first optical fiber section, so that the first optical fiber section can be well positioned without applying pressure to the first optical fiber section, so that when the cat eye position of the first optical fiber section is adjusted by rotation, the optical fiber does not have stress, and after the optical fiber is removed, deformation does not occur.

[0017] In the second aspect, each second optical fiber section can be positioned by using the empty structure array, so that each second optical fiber section is limited. Regardless of the number of parallel fibers, the center deviation of each second optical fiber section is controllable.

[0018] In summary of the two aspects, the optical fiber fixing mechanism can effectively improve the yield of the product. BRIEF DESCRIPTION OF DRAWINGS

[0019] The specific embodiments of the utility model will be further described in detail below with reference to the drawings and embodiments, and the drawings are as follows:

[0020] Figure 1 is a perspective view of the optical fiber fixing mechanism provided by the utility model embodiment;

[0021] Figure 2 is a perspective view of the optical fiber, the optical fiber fixing mechanism and the glue injection mechanism provided by the utility model embodiment;

[0022] Figure 3 is a structural schematic view of the first optical fiber section and the second optical fiber section;

[0023] Figure 4 is Figure 1 is another angle of the optical fiber fixing mechanism shown in the figure;

[0024] Figure 5 is Figure 4 is a perspective view of the optical fiber fixing mechanism shown in the figure, and the rough limiting block is omitted.

[0025] The reference signs in the figure are as follows:

[0026] 100, optical fiber fixing mechanism;

[0027] 10. First bearing block; 11. Fiber optic positioning hole array; 111. Fiber optic positioning hole; 12. First groove; 121. Second arc groove; 13. First notch;

[0028] 20. Second bearing block; 21. Air-proof structure array; 211. Air-proof structure; 22. Second slot; 23. Second notch; 24. Slot;

[0029] 30. Glue injection space;

[0030] 40. Coarse limit block; 41. Coarse limit port;

[0031] 50. Connection structure; 51. Pin;

[0032] 200. Glue dispensing mechanism;

[0033] 9000, optical fiber; 9100, first optical fiber segment; 9200, second optical fiber segment. Detailed Implementation

[0034] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0035] This utility model embodiment provides an optical fiber fixing mechanism 100, such as... Figures 1-4 As shown, the fiber optic fixing mechanism 100 is used to position the fiber optic cable 9000. The fiber optic cable 9000 includes a first fiber segment 9100 with its cladding stripped and a second fiber segment 9200 with its cladding layer removed. The fiber optic fixing mechanism 100 includes a first support block 10 and a second support block 20. The first support block 10 is provided with a fiber optic positioning hole array 11, and the array direction of the fiber optic positioning hole array 11 is (…). Figure 1 The X direction shown is perpendicular to the axial direction of each fiber positioning hole 111 in the fiber positioning hole array 11. Figure 1 (As shown in the Y direction), the fiber positioning hole 111 is used to position the first fiber segment 9100. The second carrier block 20 is spaced apart from the first carrier block 10 along the axial direction of the fiber positioning hole 111, so as to form an injection space 30 between the first carrier block 10 and the second carrier block 20. The second carrier block 20 is provided with a clearance structure array 21, which includes a plurality of clearance structures 211 corresponding one-to-one with a plurality of fiber positioning holes 111. The clearance structures 211 are used to position the second fiber segment 9200, and each clearance structure 211 is coaxially arranged with the corresponding fiber positioning hole 111.

[0036] In the first aspect, the first fiber segment 9100 can be positioned by the fiber positioning hole 111, so that the first fiber segment 9100 can be well positioned without being pressed, like the prior art in which the cover plate cooperates with the V-shaped groove to limit the position of the first fiber segment 9100. Therefore, when the second fiber segment 9200 is rotated to adjust the cat-eye position of the first fiber segment 9100, the fiber 9000 will not have stress, and the fiber 9000 will not be deformed after being removed.

[0037] In the second aspect, in the prior art, the second fiber segments 9200 are simply arranged side by side and glued. Since the outer diameter of the second fiber segment 9200 has a tolerance, as the number of fiber segments increases, the center deviation will be larger. For example, the standard size of the second fiber segment 9200 is 250 um, but the produced second fiber segment 9200 is only 240 um. Now, two second fiber segments 9200 are simply arranged side by side, and the center deviation of the second second fiber segment 9200 is 10 um. If three second fiber segments 9200 are simply arranged side by side, the center deviation of the third second fiber segment 9200 is 20 um. As can be seen, as the number of fiber segments increases, the center deviation will be larger. In the embodiment, each second fiber segment 9200 can be positioned by the empty structure array 21, so that each second fiber segment 9200 is limited. Therefore, no matter how many fiber segments are arranged side by side, the center deviation of each second fiber segment 9200 can be controlled, and the center deviation will not be too large.

[0038] In summary of the two aspects, the fiber fixing mechanism 100 provided by the embodiment of the utility model can effectively improve the yield of the produced product.

[0039] In use, the first fiber segment 9100 is inserted into the fiber positioning hole 111 from the side of the second bearing block 20 away from the first bearing block 10, until the fiber 9000 cannot be pushed, and the positioning operation of the first fiber segment 9100 and the second fiber segment 9200 is completed. Then, the multiple fibers 9000 are glued by the gluing mechanism 200, and the product is taken out after the glue is fixed.

[0040] The specific number of the fiber positioning hole 111 and the empty structure 211 can be adjusted according to production needs, for example, to 12 or 16. The embodiment does not limit the specific number of the fiber positioning hole 111 and the empty structure 211. However, it is worth mentioning that the utility model can especially improve the yield of more than 12 fibers. Therefore, the specific number of the fiber positioning hole 111 and the empty structure 211 is greater than or equal to 12, which is a preferred embodiment of the utility model.

[0041] In one specific embodiment, the clearance structure 211 is a clearance hole, which is adapted to the shape of the second optical fiber segment 9200, and the clearance structure 211 can be used to achieve good positioning of the second optical fiber segment 9200.

[0042] refer to Figure 1 In another specific embodiment, the clearance structure 211 is a first arc groove, which is adapted to the shape of the second optical fiber segment 9200. The clearance structure 211 can be used to achieve good positioning of the second optical fiber segment 9200.

[0043] refer to Figures 1-4 To facilitate the glue-applying mechanism 200 in using the glue-applying space 30 to fix the second fiber segments 9200 of multiple optical fibers 9000 with glue, in some embodiments, the first support block 10 is provided with a first groove 12 on the side facing the second support block 20, and the fiber positioning hole array 11 is disposed at the bottom of the first groove 12 along the first direction ( Figure 1 A first notch 13 is provided on the first support block 10 (shown in the Z direction). The first notch 13 connects the side of the first support block 10 facing the second support block 20 and connects to the first groove 12. A second groove 22 is provided on the side of the second support block 20 facing the first support block 10. A second notch 23 is provided on the second support block 20 along the first direction. The second notch 23 connects the side of the second support block 20 facing the first support block 10 and connects to the second groove 22. The first direction is perpendicular to the array direction of the fiber optic positioning hole array 11 and the axial direction of the fiber optic positioning hole 111.

[0044] Specifically, in this embodiment, the first groove 12, the first notch 13, the second groove 22, and the second notch 23 are all adjacent to and connected to the glue injection space 30. Therefore, the first groove 12 and the first notch 13 will cooperate to form a clearance area, and the second groove 22 and the second notch 23 will also cooperate to form a clearance area. These two clearance areas can avoid the glue injection mechanism 200, making it convenient for the glue injection mechanism 200 to use the glue injection space 30 to apply glue and fix multiple optical fibers 9000.

[0045] refer to Figure 1 In a specific embodiment, the clearance structure 211 is disposed on the groove wall of the second groove 22 on the side away from the second notch 23, and the clearance structure 211 is an arc groove.

[0046] Specifically, although the avoidance structure 211 can also be an avoidance hole provided on the bottom of the second groove 22, it will cause the limiting position of the second fiber segment 9200 to be far away from the glue injection position, which is not conducive to improving the yield of the product. In order to more effectively improve the yield of the product, the avoidance structure 211 of the present embodiment is provided on the groove wall of the second groove 22 away from the second notch 23, so that the avoidance structure 211 of the present embodiment is provided adjacent to the glue injection space 30, which means that the limiting position of the second fiber segment 9200 is very close to the glue injection position, so that the yield of the product can be more effectively improved. It is worth mentioning that, due to the need to avoid the glue injection mechanism 200 by using the second groove 22 and the second notch 23, the avoidance structure 211 of the present embodiment cannot be provided as an avoidance hole, so the avoidance structure 211 of the present embodiment is provided as a first circular arc groove.

[0047] Reference Figure 2 , Figure 4 In specific embodiments, a plurality of second circular arc grooves 121 are provided on the groove wall of the first groove 12 away from the first notch 13, and the plurality of second circular arc grooves 121 correspond one-to-one to the plurality of fiber positioning holes 111. Each second circular arc groove 121 is coaxially arranged with the corresponding fiber positioning hole 111, so that the second circular arc groove 121 can be used to position the second fiber segment 9200.

[0048] By implementing the present embodiment, the first circular arc groove and the second circular arc groove 121 can be used to limit the second fiber segment 9200 on both sides of the glue injection position. Compared with the embodiment in which only the first circular arc groove is used to limit the second fiber segment 9200 on one side of the glue injection position, the implementation of the present embodiment can further reduce the center deviation of the second fiber segment 9200 at the glue injection position.

[0049] Reference Figure 1 , Figure 4 In some embodiments, the fiber fixing mechanism 100 further comprises a coarse limiting block 40, which is arranged on the side of the avoidance structure array 21 away from the first bearing block 10. The coarse limiting block 40 is provided with a coarse limiting through hole 41 communicating with the avoidance structure array 21. In the axial direction of the fiber positioning hole 111, the projection of the coarse limiting through hole 41 completely covers the projection of the avoidance structure array 21, which provides a necessary condition for the second fiber segment 9200 to enter the avoidance structure array 21 from the coarse limiting through hole 41.

[0050] Specifically, the coarse limiting through hole 41 on the coarse limiting block 40 is used to preliminarily limit the second fiber segment 9200, and the second fiber segment 9200 after preliminary limiting is more easily aligned with the avoidance structure array 21, so that the provision of the coarse limiting through hole 41 is conducive to improving the production speed. In addition, the provision of the coarse limiting through hole 41 can prevent the second fiber segment 9200 from being raised to a certain extent, further improving the yield of the product.

[0051] It is worth mentioning that after the glue injection of the plurality of second optical fiber segments 9200 is completed and the plurality of second optical fiber segments 9200 are fixed together, the product can be pulled out in the direction away from the first carrier block 10 to the second carrier block 20, which is very convenient.

[0052] Reference Figure 4 , Figure 5 In specific embodiments, the side of the second carrier block 20 away from the first carrier block 10 is provided with a slot 24, the slot 24 is communicated with the second groove 22, and the coarse limiting block 40 is inserted into the slot 24.

[0053] The embodiment provides a mounting mode of the coarse limiting block 40, which only needs to provide the slot 24 for inserting the coarse limiting block 40 on the side of the second carrier block 20 away from the first carrier block 10, and the installation is very simple and convenient.

[0054] In order to improve the connection stability of the coarse limiting block 40 and the second carrier block 20, glue can also be applied to the outer side surface of the coarse limiting block 40 or the groove wall of the slot 24 before the coarse limiting block 40 is inserted into the slot 24.

[0055] In order to coaxially arrange the avoidance structure 211 and the corresponding optical fiber positioning hole 111 and avoid deviation of the two, the first carrier block 10 provided with the optical fiber positioning hole 111 and the second carrier block 20 provided with the avoidance structure 211 can be connected, so that the first carrier block 10 is prevented from moving relative to the second carrier block 20, and coaxial arrangement of the avoidance structure 211 and the optical fiber positioning hole 111 is ensured.

[0056] There are many connection modes of the first carrier block 10 and the second carrier block 20, which are not limited in the embodiment, and two embodiments are listed below for description.

[0057] In some embodiments, the first carrier block 10 and the second carrier block 20 are integrally formed, so that the first carrier block 10 and the second carrier block 20 are connected together, and the avoidance structure 211 and the corresponding optical fiber positioning hole 111 are coaxially arranged.

[0058] Reference Figure 1 In other embodiments, the optical fiber fixing mechanism 100 further comprises a connecting structure 50, the connecting structure 50 is connected with the first carrier block 10 and the second carrier block 20, so that the first carrier block 10 and the second carrier block 20 are connected together, and the avoidance structure 211 and the corresponding optical fiber positioning hole 111 are coaxially arranged.

[0059] Reference Figure 1In specific embodiments, the connecting structure 50 comprises two pins 51, and each pin 51 is respectively inserted into the first bearing block 10 and the second bearing block 20. In the array direction of the fiber positioning hole array 11, the two pins 51 are respectively arranged on the two sides of the fiber positioning hole array 11. In this way, the connection between the first bearing block 10 and the second bearing block 20 is achieved. It is worth mentioning that two pins 51 are arranged to increase the stability of the connection.

[0060] In order to facilitate the insertion of the pin 51 into the first bearing block 10 and the second bearing block 20, in specific embodiments, the end of the pin 51 can be arranged in a circular arc shape, which can provide a guiding effect when the pin 51 is inserted, thereby facilitating the installation speed of the pin 51.

[0061] The utility model embodiment further provides a kind of parallel fiber device, as shown in Figures 1-4 The parallel fiber device includes a fiber fixing mechanism 100 and a glue injection mechanism 200. The fiber fixing mechanism 100 is the fiber fixing mechanism 100 shown in the above embodiments. The glue injection mechanism 200 is arranged at the glue injection space 30 formed by the fiber fixing mechanism 100, and is used to inject glue into the second fiber segment 9200.

[0062] In the first aspect, by implementing the embodiment, the fiber positioning hole 111 can be used to position the first fiber segment 9100. This can well position the fiber 9000 and will not exert pressure on the first fiber segment 9100 like the cover plate cooperating with the V-shaped groove in the prior art. Therefore, when the second fiber segment 9200 is rotated to adjust the cat-eye position of the first fiber segment 9100, there will be no stress inside the fiber 9000, and the fiber 9000 will not deform after being removed.

[0063] In the second aspect, in the prior art, the second fiber segments 9200 are simply arranged side by side for glue injection. Since the outer diameter of the second fiber segment 9200 has a tolerance, as the number of parallel fibers increases, the center deviation will become larger. For example, the standard size of the second fiber segment 9200 is 250um, but the produced second fiber segment 9200 is only 240um. Now, two second fiber segments 9200 are simply arranged side by side, and the center deviation of the second second fiber segment 9200 is 10um. If three second fiber segments 9200 are simply arranged side by side, the center deviation of the third second fiber segment 9200 is 20um. As can be seen, as the number of parallel fibers increases, the center deviation will become larger. By implementing the embodiment, each second fiber segment 9200 can be positioned by the void structure array 21. Therefore, each second fiber segment 9200 is limited, so that the center deviation of each second fiber segment 9200 is controllable regardless of the number of parallel fibers, and the center deviation will not become too large.

[0064] In conclusion, the parallel fiber fixing mechanism can effectively improve the yield of the products.

[0065] It should be understood that the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them, and the technical solutions recorded in the above embodiments can be modified by those skilled in the art, or some technical features can be replaced by equivalents; all these modifications and replacements shall belong to the protection scope of the claims of the present application.

Claims

1. An optical fiber fixing mechanism for positioning an optical fiber, said optical fiber comprising a first optical fiber segment stripped of its cladding and a second optical fiber segment having its cladding layer removed, characterized in that, include: The first support block has an array of fiber optic positioning holes, the array direction of which is perpendicular to the axial direction of each fiber optic positioning hole in the array; the fiber optic positioning holes are used to position the first fiber segment. The second carrier block is spaced apart from the first carrier block along the axial direction of the fiber positioning hole to form an injection space between the first carrier block and the second carrier block; the second carrier block is provided with an array of clearance structures, the array of clearance structures including a plurality of clearance structures corresponding one-to-one with a plurality of fiber positioning holes, each clearance structure being coaxially arranged with the corresponding fiber positioning hole; the clearance structure is used to position the second fiber segment.

2. The optical fiber fixing mechanism according to claim 1, characterized in that, The first support block has a first groove on the side facing the second support block, and the optical fiber positioning hole array is disposed at the bottom of the first groove. A first notch is provided on the first support block along a first direction, and the first notch connects the side of the first support block facing the second support block and the first groove. The second support block has a second groove on the side facing the first support block, and a second notch is provided on the second support block along the first direction, and the second notch connects the side of the second support block facing the first support block and the second groove. The first direction is perpendicular to the array direction and the axial direction.

3. The optical fiber fixing mechanism according to claim 2, characterized in that, The clearance structure is disposed on the groove wall of the second groove on the side away from the second notch, and the clearance structure is a first arc groove.

4. The optical fiber fixing mechanism according to claim 3, characterized in that, The first groove has a plurality of second arc grooves on the groove wall away from the first notch. Each of the second arc grooves corresponds one-to-one with a plurality of optical fiber positioning holes. Each second arc groove is coaxially arranged with the corresponding optical fiber positioning hole so that the second arc groove can be used to position the second optical fiber segment.

5. The optical fiber fixing mechanism according to claim 3 or 4, characterized in that, It also includes a coarse limiting block, which is installed on the side of the air-avoiding structure array away from the first bearing block. The coarse limiting block is provided with a coarse limiting port that communicates with the air-avoiding structure array. In the axial direction of the optical fiber positioning hole, the projection of the coarse limiting port completely covers the projection of the air-avoiding structure array.

6. The optical fiber fixing mechanism according to claim 5, characterized in that, The second support block has a slot on the side away from the first support block that communicates with the second groove, and the coarse limiting block is inserted into the slot.

7. The optical fiber fixing mechanism according to any one of claims 1-4, characterized in that, It also includes a connecting structure that is connected to the first support block and the second support block, so that the clearance structure is coaxially arranged with the corresponding optical fiber positioning hole.

8. The optical fiber fixing mechanism according to claim 7, characterized in that, The connection structure includes two pins, each pin having its two ends inserted into the first support block and the second support block respectively; in the array direction, the two pins are respectively disposed on both sides of the fiber positioning hole array.

9. The optical fiber fixing mechanism according to claim 1, characterized in that, The number of fiber optic positioning holes is greater than or equal to 12.

10. A fiber-parallelizing device, characterized in that, include: The fiber optic fixing mechanism is the fiber optic fixing mechanism shown in any one of claims 1-9 above; The glue injection mechanism is located in the glue injection space formed by the optical fiber fixing mechanism and is used to inject glue into the second optical fiber segment.

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