A fixture and method for manufacturing a high-precision double-row fiber optic array

Abstract

The present invention provides a jig and method for manufacturing a high-precision double-row optical fiber array. By arranging a high-precision concave groove to place the optical fibers, fixing the bottom-layer optical fibers up and down through a first cover plate, and fixing the upper-layer optical fibers up and down through a second cover plate. At the same time, a limiting groove is arranged on the side to fix the sides of the optical fibers through a limiting block. Finally, the bottom-layer optical fibers and the upper-layer optical fibers are cured, and the position where the first cover plate is located is cut off. The present invention can accurately adjust the distance between optical fibers, is convenient to manufacture, has a compact structure, realizes the high-precision arrangement of the double-row optical fiber array, and ensures the positioning accuracy between optical fibers.

Description

Technical Field

[0001] The present invention relates to a fixture and method for manufacturing optical fibers, and particularly to a fixture and method for manufacturing a high-precision double-row optical fiber array. Background Art

[0002] With the development of the Internet and big data, the construction of large data centers has become increasingly important. A data center consists of a large number of servers, and a large amount of data exchange is required between the servers. Fiber optic interconnection has replaced electronic interconnection and become the most important interconnection technology in data centers. In a supercomputer system, high-speed data exchange is required between cabinets for parallel computing, and fiber optic interconnection has also replaced electronic interconnection. To meet the demand for massive high-speed data exchange, parallel fiber optic transmission modules are usually adopted in fiber optic interconnection technology.

[0003] Massive high-speed data exchange poses high requirements for the arrangement density of fiber optic ports and the miniaturization of modules. In a transceiver integrated parallel fiber optic transmission module, it is desired to arrange a vertical cavity surface emitting laser (VCSEL) array and a photodetector (PD) array in two columns, and couple and dock a double-row optical fiber array with the VCSEL array and the PD array to achieve the emission and reception of optical signals. However, in the existing double-row optical fiber array, generally two single-row optical fiber arrays are stacked together, and then a certain positioning structure is used to align the relative positions between the two rows of optical fibers. This existing double-row optical fiber array structure can ensure the positioning accuracy within each row of optical fibers, but the positioning accuracy between the two rows of optical fibers is much lower, and it cannot meet the requirements for efficient optical signal coupling. Summary of the Invention

[0004] In view of the above problems, the present invention provides a fixture for manufacturing a high-precision double-row optical fiber array, including an optical fiber fixing component, and the optical fiber fixing component includes:

[0005] A bottom plate, which is rectangular. An arcuate groove is provided at the middle position in the long side direction of the bottom plate. The arcuate groove is divided into two segments. The depth of the first segment of the arcuate groove is less than the depth of the second segment of the arcuate groove. At least one limiting groove is provided on the side of the long side of the bottom plate;

[0006] A first cover plate for covering the first segment of the arcuate groove. A limiting groove is provided on the side of the first cover plate, corresponding to the position of the limiting groove of the first segment of the arcuate groove;

[0007] A second cover plate for covering the second segment of the arcuate groove;

[0008] At least one limiting block, which is placed in the limiting groove;

[0009] After the bottom - layer optical fiber is placed in the concave groove, it is covered by the first cover plate and fixed by the limit block. After the upper - layer optical fiber is placed on the bottom - layer optical fiber, the limit block is placed in the limit groove and covered by the second cover plate to fix the pair of optical fibers.

[0010] Further, two limit grooves are arranged on the side of the second - section concave groove.

[0011] Further, the concave groove is a U - shaped groove or a square groove.

[0012] Further, the material of the bottom plate is glass, silicon wafer, ceramic or metal.

[0013] Further, the upper - layer optical fiber is placed above the bottom - layer optical fiber and placed side by side with the bottom - layer optical fiber.

[0014] Further, the upper - layer optical fiber is placed above the bottom - layer optical fiber and placed in a staggered manner with the bottom - layer optical fiber.

[0015] Further, the double - row optical - fiber array manufacturing jig further includes:

[0016] A base, with fixing nuts arranged at both ends of the base;

[0017] An assembly module, arranged on the base and fixed by the fixing nuts at both ends of the base;

[0018] A front differential head, arranged on one side of the base, used to drive the front swing arm to move up and down. The first end of the front swing arm is fixed to the assembly module, and the second end of the front swing arm is used to press the first cover plate;

[0019] A rear differential head, arranged on one side of the base, used to drive the rear swing arm to move up and down. The first end of the rear swing arm is fixed to the assembly module, and the second end of the rear swing arm is used to press the second cover plate;

[0020] A side - pressure differential head, arranged on one side of the base. The side - pressure differential head is used to push an extrusion slider. The extrusion slider is arranged on the assembly module and used to fix the limit block;

[0021] When the optical - fiber fixing component is assembled, place the optical - fiber fixing component on the assembly module. Adjust the front differential head to make the front swing arm press the first cover plate downward, adjust the rear differential head to make the rear swing arm press the second cover plate downward, and adjust the side differential head to make the extrusion block press the limit block.

[0022] Further, an elastic body is arranged at one end of the extrusion slider for fixing the limit block.

[0023] The present invention further provides a method for manufacturing a high - precision double - row optical - fiber array, which is applicable to the above - mentioned high - precision double - row optical - fiber array manufacturing jig. The manufacturing method includes the following steps:

[0024] S1: Place the bottom - layer optical fiber in the concave groove of the bottom plate;

[0025] S2: Cover the first - section concave groove with the first cover plate;

[0026] S3: Place the upper - layer optical fiber on the bottom - layer optical fiber;

[0027] S4: Cover the second - section concave groove with the second cover plate;

[0028] S5: Place the limit block on the side of the bottom plate;

[0029] S6: Adjust the front differential head to press the front swing arm downward to tightly press the first cover plate;

[0030] S7: Adjust the rear differential head to press the rear swing arm downward to tightly press the second cover plate;

[0031] S8: Adjust the side differential head to press the extrusion block against the limit block;

[0032] S9: Apply glue and cure it to fix the bottom plate, optical fibers, first cover plate and second cover plate together;

[0033] S10: Cut off the position where the first cover plate is located.

[0034] The present invention provides a high - precision manufacturing jig and method for a double - row optical fiber array. By setting high - precision concave grooves to place optical fibers, fixing the bottom - layer optical fiber up and down with the first cover plate, and then fixing the upper - layer optical fiber up and down with the second cover plate. At the same time, a limit groove is set on the side to fix the side of the optical fiber through the limit block. Finally, the bottom - layer optical fiber and the upper - layer optical fiber are cured, and the position where the first cover plate is located is cut off. The present invention can accurately adjust the distance between optical fibers, is convenient to manufacture, has a compact structure, realizes the high - precision arrangement of the double - row optical fiber array, and ensures the positioning accuracy between optical fibers. Brief Description of the Drawings

[0035] Figure 1 It is a schematic diagram of the optical fiber fixing component of a high - precision manufacturing jig for a double - row optical fiber array according to the present invention;

[0036] Figure 2 It is a schematic diagram of the bottom plate of a high - precision manufacturing jig for a double - row optical fiber array according to the present invention;

[0037] Figure 3 It is a schematic diagram after cutting of a high - precision manufacturing jig for a double - row optical fiber array according to the present invention;

[0038] Figure 4 It is a schematic diagram of the double - row optical fiber arrangement mode during the manufacturing of a high - precision double - row optical fiber array according to the present invention;

[0039] Figure 5 This is an overall schematic diagram of a jig for manufacturing a high-precision double-row fiber optic array according to the present invention.

[0040] Description of the reference numerals

[0041] 1 Fiber fixing component 11 Base plate 12 First cover plate

[0042] 13 Second cover plate 14 Limiting groove 15 Limiting block 2 Optical fiber

[0043] 3 Base 4 Fixing nut 5 Assembly module

[0044] 6 Front differential head 61 Front swing arm 7 Rear differential head 71 Rear swing arm

[0045] 8 Side differential head 81 Extrusion slider 82 Elastic body Detailed implementation manners

[0046] To further understand the purpose, structure, features, and functions of the present invention, the following is a detailed description in conjunction with the embodiments.

[0047] In view of the above problems, the present invention provides a jig for manufacturing a high-precision double-row fiber optic array, including a fiber fixing component 1. Refer to Figure 1 , Figure 1 This is a schematic diagram of the fiber fixing component of a jig for manufacturing a high-precision double-row fiber optic array according to the present invention. The fiber fixing component 1 includes a base plate 11, a first cover plate 12, a second cover plate 13, and at least one limiting block 15; the base plate 11 is rectangular. Refer to Figure 2 , Figure 2 This is a schematic diagram of the base plate of a jig for manufacturing a high-precision double-row fiber optic array according to the present invention. A concave groove is provided at the middle position in the long side direction of the base plate. The concave groove is divided into two sections. The depth of the first section of the concave groove is less than the depth of the second section of the concave groove. At least one limiting groove is provided on the side of the long side of the base plate; the first cover plate 12 is used to cover the first section of the concave groove and can fix the lowermost layer of optical fibers in the up and down direction. A limiting groove 14 is provided on the side of the first cover plate, corresponding to the position of the limiting groove of the first section of the concave groove, and can fix the lowermost layer of optical fibers in the horizontal direction; the second cover plate 13 is used to cover the second section of the concave groove and can fix the upper layer of optical fibers and the lowermost layer of optical fibers in the up and down direction; the limiting blocks 15 are placed in the limiting groove 14 and can fix the lowermost layer of optical fibers and the upper layer of optical fibers in the horizontal direction.

[0048] After the lowermost layer of optical fibers 2 is placed in the concave groove, it is covered by the first cover plate 12 and fixed by the limiting blocks 15. After the upper layer of optical fibers 2 is placed on the lowermost layer of optical fibers 2, it is fixed by the limiting blocks 15 and covered by the second cover plate 13. The first cover plate 12 and the second cover plate 13 can fix the position of the optical fibers 2 in the up and down direction, and the limiting blocks 15 can fix the position of the optical fibers 2 in the horizontal direction, accurately adjusting the distance between the optical fibers, which is convenient for manufacturing and has a compact structure.

[0049] Further, two limiting grooves 14 are arranged on the side of the second concave groove, which can fix the upper optical fiber 2 and the bottommost optical fiber 2 more tightly from the side.

[0050] Further, the concave groove is a U-shaped groove or a square groove, and can also be other similar concave grooves capable of limiting on both sides, and the present invention does not make any restrictions.

[0051] Further, the material of the bottom plate 11 can be glass, silicon wafer, ceramic or metal, and generally glass is used more, and the present invention does not make any restrictions.

[0052] Further, the upper optical fiber 2 is placed above the bottommost optical fiber 2. Refer to Figure 4 , Figure 4 which is a schematic diagram of the arrangement mode of the double-row optical fibers during the manufacture of a high-precision double-row optical fiber array of the present invention; when the upper optical fiber 2 and the bottommost optical fiber 2 are placed side by side, the number of upper optical fibers is the same as that of the bottommost optical fibers; when the upper optical fiber 2 and the bottommost optical fiber 2 are placed in a staggered manner, the number of upper optical fibers is one less than that of the bottommost optical fibers.

[0053] Refer to Figure 5 , Figure 5 which is an overall schematic diagram of a jig for manufacturing a high-precision double-row optical fiber array of the present invention. A jig for manufacturing a high-precision double-row optical fiber array provided by the present invention further includes a base 3, an assembly module 5, a front differential head 6, a rear differential head 7 and a side differential head 8. Fixed nuts 4 are arranged at both ends of the base 3; the assembly module 5 is arranged on the base 3 and fixed by the fixed nuts 4 at both ends of the base 3; the front differential head 6 is arranged on one side of the base 3 and used to drive the front swing arm 61 to move up and down. The first end of the front swing arm 61 is fixed to the assembly module 5, and the second end is used to press the first cover plate 12. The front swing arm 61 can rotate around the first end in the horizontal direction, and the rotation action in the horizontal direction is rotated manually; the rear differential head 7 is arranged on one side of the base and used to drive the rear swing arm 71 to move up and down. The first end of the rear swing arm 71 is fixed to the assembly module 5, and the second end of the rear swing arm 71 is used to press the second cover plate 13. The rear swing arm 71 can rotate around the first end in the horizontal direction, and the rotation action in the horizontal direction is rotated manually; the side pressure differential head 8 is arranged on one side of the base, and the side pressure differential head is used to push the extrusion slider 81. The extrusion slider 81 is arranged on the assembly module 5 and used to push the rear fixed limiting block 15 inward.

[0054] When the optical fiber fixing component 1 is assembled, place the optical fiber fixing component 1 on the assembly module 5, adjust the front differential head 6 to press the front swing arm 61 downward against the first cover plate 12, adjust the rear differential head 7 to press the rear swing arm 71 downward against the second cover plate 13, adjust the side differential head 8 to press the extrusion slider 81 against the limiting block 15, then apply glue and cure it to fix the bottom plate 11, the optical fiber 2, the first cover plate 12 and the second cover plate 13 together, and then cut off the position where the first cover plate 12 is located. Refer to Figure 3 , Figure 3 which is a schematic diagram after cutting of a high-precision double-row optical fiber array manufacturing fixture according to the present invention.

[0055] Furthermore, an elastic body 82 is provided at one end of the extrusion slider 81 for fixing the limiting block 15, which plays a role of buffering and shock absorption.

[0056] The present invention further provides a method for manufacturing a high-precision double-row optical fiber array, which is applicable to the above-mentioned high-precision double-row optical fiber array manufacturing fixture, and mainly includes the following steps:

[0057] S1: Place the bottom-layer optical fiber in the concave groove of the bottom plate;

[0058] S2: Cover the first-section concave groove with the first cover plate;

[0059] S3: Place the upper-layer optical fiber on the bottom-layer optical fiber;

[0060] S4: Cover the second-section concave groove with the second cover plate;

[0061] S5: Place the limiting block on the side of the bottom plate;

[0062] S6: Adjust the front differential head to press the front swing arm downward against the first cover plate;

[0063] S7: Adjust the rear differential head to press the rear swing arm downward against the second cover plate;

[0064] S8: Adjust the side differential head to press the extrusion block against the limiting block;

[0065] S9: Apply glue and cure it to fix the bottom plate, the optical fiber, the first cover plate and the second cover plate together;

[0066] S10: Cut off the position where the first cover plate is located.

[0067] In the above-mentioned method for manufacturing a high-precision double-row optical fiber array, the concave groove can initially fix the distance between the optical fibers. The first cover plate can fix the bottom-layer optical fiber in the up-and-down direction, and the second cover plate can fix the upper-layer optical fiber in the up-and-down direction. When placing the upper-layer optical fiber, the upper-layer optical fiber can be placed side by side with the bottom-layer optical fiber or can be placed staggeredly with the bottom-layer optical fiber; placing the limiting block on the side of the bottom plate can fix the optical fiber in the horizontal direction.

[0068] The present invention provides a manufacturing fixture and method for a high-precision double-row optical fiber array. By setting a high-precision concave groove to place the optical fibers, fixing the bottom-layer optical fibers from above and below through a first cover plate, and then fixing the upper-layer optical fibers from above and below through a second cover plate. At the same time, a limiting groove is provided on the side to fix the side of the optical fibers through a limiting block. Finally, the bottom-layer optical fibers and the upper-layer optical fibers are cured, and the position where the first cover plate is located is cut off. The present invention can accurately adjust the distance between optical fibers, is convenient to manufacture, has a compact structure, realizes the high-precision arrangement of the double-row optical fiber array, and ensures the positioning accuracy between optical fibers.

[0069] The present invention has been described by the above related embodiments. However, the above embodiments are only examples for implementing the present invention. It must be pointed out that the disclosed embodiments do not limit the scope of the present invention. On the contrary, modifications and refinements made without departing from the spirit and scope of the present invention fall within the scope of the patent protection of the present invention.

Claims

1. A fixture for manufacturing a high-precision double-row optical fiber array, characterized in that, Comprising an optical fiber fixing component, which includes: A bottom plate, rectangular in shape, with a concave groove provided at the middle position in the long side direction of the bottom plate. The concave groove is divided into two sections. The depth of the first section of the concave groove is less than that of the second section of the concave groove. At least one limiting groove is provided on the side of the long side of the bottom plate; A first cover plate for covering the first section of the concave groove. A limiting groove is provided on the side of the first cover plate, corresponding to the position of the limiting groove of the first section of the concave groove; A second cover plate for covering the second section of the concave groove; At least one limiting block, and the at least one limiting block is placed in the limiting groove; After the bottom layer of optical fibers is placed in the concave groove, it is covered by the first cover plate and fixed by the limiting block. After the upper layer of optical fibers is placed on the bottom layer of optical fibers, the limiting block is placed in the limiting groove and covered by the second cover plate to fix the optical fibers.

2. The fixture for manufacturing a high-precision double-row optical fiber array according to claim 1, characterized in that Two limiting grooves are provided on the side of the second section of the concave groove.

3. A jig for manufacturing a high-precision double-row optical fiber array according to claim 1, characterized in that, The concave groove is a U-shaped groove or a square groove.

4. A fixture for manufacturing a high-precision double-row optical fiber array according to claim 1, characterized in that, The material of the bottom plate is glass, silicon wafer, ceramic or metal.

5. A jig for manufacturing a high-precision double-row optical fiber array according to claim 1, characterized in that, The upper layer of optical fibers is placed above the bottom layer of optical fibers and placed side by side with the bottom layer of optical fibers.

6. A fixture for manufacturing a high-precision double-row optical fiber array according to claim 1, characterized in that, The upper layer of optical fibers is placed above the bottom layer of optical fibers and placed offset from the bottom layer of optical fibers.

7. A fixture for manufacturing a high-precision double-row optical fiber array according to claim 1, characterized in that, The double-row optical fiber array manufacturing jig further includes: A base, with fixing nuts provided at both ends of the base; An assembly module, arranged on the base and fixed by the fixing nuts at both ends of the base; A front differential head, arranged on one side of the base, used to drive the front swing arm to move up and down. The first end of the front swing arm is fixed to the assembly module, and the second end of the front swing arm is used to press the first cover plate; A rear differential head, arranged on one side of the base, used to drive the rear swing arm to move up and down. The first end of the rear swing arm is fixed to the assembly module, and the second end of the rear swing arm is used to press the second cover plate; A side pressure differential head, arranged on one side of the base. The side pressure differential head is used to push an extrusion slider, and the extrusion slider is arranged on the assembly module and used to fix the limiting block; When the optical fiber fixing component is assembled, place the optical fiber fixing component on the assembly module, adjust the front differential head to make the front swing arm press down on the first cover plate, adjust the rear differential head to make the rear swing arm press down on the second cover plate, and adjust the side differential head to make the extrusion block press the limiting block.

8. A fixture for manufacturing a high-precision double-row optical fiber array according to claim 7, characterized in that, An elastic body is provided at one end of the extrusion slider for fixing the limiting block.

9. A method for manufacturing a high-precision double-row optical fiber array, applicable to a high-precision double-row optical fiber array manufacturing jig as claimed in claim 7. The manufacturing method includes the following steps: S1: Place the bottom layer of optical fibers in the concave groove of the bottom plate; S2: Cover the first section of the concave groove with the first cover plate; S3: Place the upper layer of optical fibers on the bottom layer of optical fibers; S4: Cover the second section of the concave groove with the second cover plate; S5: Place the limiting block on the side of the bottom plate; S6: Adjust the front differential head to make the front swing arm press down on the first cover plate; S7: Adjust the rear differential head to make the rear swing arm press down on the second cover plate; S8: Adjust the side differential head to make the extrusion block press the limiting block; S9: Apply glue and cure to fix the bottom plate, optical fibers, first cover plate and second cover plate together; S10: Cut off the position where the first cover plate is located.

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