A high-precision double-row optical fiber array manufacturing device and method

Abstract

The application relates to a high-precision double-row optical fiber array manufacturing device and method, wherein a plurality of recessed grooves are arranged on a bottom plate, the height of a second recessed groove is higher than that of a first recessed groove, the bottom layer optical fiber is first fixed and covered by a first cover plate and compressed by a front pressing strip, the upper layer optical fiber is then placed on the bottom layer optical fiber and covered by a second cover plate and compressed by a rear pressing strip, and finally, the bottom layer optical fiber and the upper layer optical fiber are solidified, the application can accurately adjust the distance between the optical fibers, is convenient to manufacture, compact in structure, realizes high-precision arrangement of the double-row optical fiber array, and guarantees the positioning precision between the optical fibers.

Description

Technical Field

[0001] This invention relates to an equipment and method for fabricating fiber optic arrays, and more particularly to an equipment and method for fabricating high-precision dual-row fiber optic arrays. Background Technology

[0002] With the development of the internet and big data, the construction of large-scale data centers has become increasingly important. Data centers consist of a large number of servers, requiring massive data exchange between them. Fiber optic interconnects have replaced electronic interconnects as the primary interconnect technology for data centers. In supercomputer systems, high-speed data exchange is required between racks performing parallel computing, and fiber optic interconnects have also replaced electronic interconnects. To meet the demands of massive, high-speed data exchange, parallel fiber optic transmission modules are typically used in fiber optic interconnect technology.

[0003] High-speed, massive data exchange places high demands on the density of fiber optic ports and the miniaturization of modules. In parallel fiber optic transmission modules integrating transceivers, it is desirable to arrange vertical-cavity surface-emitting laser (VCSEL) arrays and photodetector (PD) arrays in two rows, with a dual-row fiber optic array coupled to both the VCSEL and PD arrays to achieve optical signal transmission and reception. However, existing dual-row fiber optic arrays typically consist of two single-row fiber optic arrays stacked together, with some kind of positioning structure used to align the relative positions of the two rows of fibers. While this existing dual-row fiber optic array structure can guarantee the positioning accuracy within each row of fibers, the positioning accuracy between the two rows is much lower, failing to meet the requirements for high-efficiency coupling of optical signals. Summary of the Invention

[0004] To address the above problems, the present invention provides a high-precision dual-row fiber optic array fabrication device, comprising a fiber optic fixing assembly, the fiber optic fixing assembly comprising:

[0005] A base plate, which is a multi-segment concave groove. The depth of the first segment of the concave groove accommodates the bottom layer of optical fiber, and the depth of the second segment of the concave groove accommodates the bottom layer and the top layer of optical fiber.

[0006] A first cover plate is used to cover the first concave groove;

[0007] A second cover plate is used to cover the second concave groove;

[0008] The bottom layer optical fiber is placed in a multi-segment concave groove of the base plate, wherein the number of optical fibers is the same as the number of concave grooves, and each optical fiber is placed in a different concave groove. The first cover plate covers the first segment of the concave groove of the base plate, and then the upper layer optical fiber is placed on the bottom layer optical fiber, with each optical fiber of the upper layer optical fiber placed between two optical fibers of the bottom layer optical fiber. The second cover plate covers the second segment of the concave groove. After the bottom layer optical fiber and the upper layer optical fiber are solidified, the first segment of the concave groove is cut off.

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

[0010] Furthermore, the angle of the V-groove is set to 45 degrees to 90 degrees.

[0011] Furthermore, the angle of the V-groove is set to 60 degrees.

[0012] Furthermore, the concave groove can be a U-shaped groove or a square groove.

[0013] Furthermore, the base plate is made of glass, silicon wafers, ceramics, or metal.

[0014] Furthermore, the manufacturing equipment also includes:

[0015] A base;

[0016] Two nuts are provided on both sides of the base;

[0017] An assembly module is fixed to the base by the two nuts. The assembly module is used to hold the optical fiber fixing assembly.

[0018] A pair of front gantry frames are symmetrically arranged on both sides of the assembly module and connected by a front pressure bar. The front gantry frames can drive the front pressure bar to move up and down.

[0019] A pair of rear gantry frames are symmetrically arranged on both sides of the assembly module and connected by a rear pressure bar. The rear gantry frames can drive the rear pressure bar to move up and down.

[0020] A front micro-head is connected to the pair of front gantry frames and is used to adjust the up and down movement of the pair of front gantry frames;

[0021] A rear micrometer head is connected to the pair of rear gantry frames and is used to adjust the up and down movement of the pair of rear gantry frames;

[0022] The base plate is placed on the assembly module. The bottom fiber and the top fiber are placed on the base plate and covered by the first cover plate and the second cover plate. The front micro-head is adjusted so that the pair of front gantry frames drive the front pressure bar to move downward and press the first cover plate. The rear micro-head is adjusted so that the pair of rear gantry frames drive the rear pressure bar to move downward and press the second cover plate.

[0023] This invention also provides a method for fabricating a high-precision dual-row fiber optic array, applicable to the aforementioned high-precision dual-row fiber optic array fabrication equipment. This method includes the following steps:

[0024] S1: Place the base plate onto the assembly module;

[0025] S2: Place the bottom layer of optical fiber in the concave groove of the base plate;

[0026] S3: Cover the first concave groove with the first cover plate;

[0027] S4: Adjust the front micro head so that the pair of front gantry frames drive the front pressure bar downward to press the first cover plate;

[0028] S5: Place the upper optical fiber in the second concave groove, above the bottom optical fiber.

[0029] S6: Cover the second concave groove with the second cover plate;

[0030] S7: Adjust the rear micrometer head so that the pair of rear gantry frames drive the rear pressure bar to move downward and press the second cover plate;

[0031] S8: Apply adhesive and cure to fix the base plate, optical fiber, first cover plate and second cover plate together;

[0032] S9: Remove the base plate and cut off the first concave groove section.

[0033] This invention provides a high-precision dual-row fiber optic array fabrication device and method. By setting multiple concave grooves on the base plate, with the height of the second concave groove being higher than that of the first concave groove, the bottom layer fiber is first fixed and covered by the first cover plate, and then pressed by the front pressure strip. Next, the upper layer fiber is placed on the bottom layer fiber and covered by the second cover plate, and then pressed by the rear pressure strip. Finally, the bottom layer fiber and the upper layer fiber are solidified. This invention can accurately adjust the distance between the fibers, is easy to manufacture, has a compact structure, achieves high-precision arrangement of the dual-row fiber optic array, and ensures the positioning accuracy between the fibers. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of fiber placement in a high-precision dual-row fiber array fabrication device according to the present invention;

[0035] Figure 2 This is a schematic diagram of the cutting optical fiber produced by the high-precision dual-row optical fiber array fabrication equipment of the present invention.

[0036] Figure 3 This is a schematic diagram of the base plate fixing of a high-precision dual-row fiber optic array fabrication device according to the present invention.

[0037] Explanation of reference numerals in the attached figures

[0038] 1. Base 2. Nuts 3. Assembly module 4. Front gantry

[0039] 41 front trim strip, 5 rear gantry frame, 51 rear trim strip

[0040] 6. Front Differential Head 7. Rear Differential Head 8. Fiber Optic Fixing Assembly

[0041] 801 Base plate, 802 First cover plate, 803 Second cover plate, 9 Fiber optic cable Detailed Implementation

[0042] To provide a further understanding of the purpose, structure, features, and functions of the present invention, detailed descriptions are provided below with reference to specific embodiments.

[0043] To address the above problems, this invention provides a high-precision dual-row fiber optic array fabrication device, see [link to relevant documentation]. Figure 1 , Figure 1 This is a schematic diagram of fiber placement in a high-precision dual-row fiber array fabrication device of the present invention. It includes a fiber fixing assembly 8, which comprises a base plate 801, a first cover plate 802, and a second cover plate 803. The base plate 801 is a multi-segment concave groove, consisting of multiple concave grooves arranged in parallel, with one fiber placed in each groove. The depth of the first segment of the concave groove accommodates the bottommost fiber 9, and the depth of the second segment of the concave groove accommodates both the bottommost and uppermost fibers 9. The first cover plate 802 covers the first segment of the concave groove, and the second cover plate 803 covers the second segment of the concave groove. The bottom layer optical fiber 9 is placed in a multi-segment concave groove of the base plate 801, wherein the number of optical fibers 9 is the same as the number of concave grooves, and each optical fiber 9 is placed in a different concave groove. The first cover plate 802 covers the first segment of the concave groove of the base plate, and then the upper layer optical fiber 9 is placed on the bottom layer optical fiber 9, with each optical fiber 9 of the upper layer placed between two optical fibers 9 of the bottom layer optical fiber 9. The second cover plate 803 covers the second segment of the concave groove, realizing a high-precision arrangement of the dual-row optical fiber array. Finally, after the bottom layer optical fiber 9 and the upper layer optical fiber 9 are cured, the first segment of the concave groove is cut off. See below. Figure 2 , Figure 2 This is a schematic diagram of the cut optical fiber produced by the high-precision dual-row optical fiber array fabrication equipment of the present invention.

[0044] Preferably, the concave groove is a V-shaped groove, with the V-groove angle set to 45 degrees to 90 degrees, and optimally, the V-groove angle is set to 60 degrees. This achieves high-precision arrangement of the dual-row fiber array, ensuring the positioning accuracy between the fibers. The concave groove can also be multiple U-shaped grooves or multiple square grooves arranged in parallel.

[0045] Preferably, the base plate 801 is made of glass, silicon wafer, ceramic or metal.

[0046] Preferably, see Figure 3 , Figure 3 This is a schematic diagram of the base plate fixing of a high-precision dual-row fiber optic array fabrication device according to the present invention. The high-precision dual-row fiber optic array fabrication device provided by the present invention also includes: a base 1, two nuts 2, an assembly module 3, a pair of front gantry frames 4, a pair of rear gantry frames 5, a front micrometer head 6, and a rear micrometer head 7. The two nuts 2 are disposed on both sides of the base 1; the assembly module 3 is fixed to the base 1 by the two nuts 2, and the assembly module 3 is used to place the fiber fixing assembly 8; the pair of front gantry frames 4 are symmetrically disposed on both sides of the assembly module 3 and connected by a front pressure strip 41, and the front gantry frames 4 can drive the front pressure strip 41 to move up and down; the pair of rear gantry frames 5 are symmetrically disposed on both sides of the assembly module 3 and connected by a rear pressure strip. The rear gantry 5 is connected to the assembly module 3. The front micro-head 6 is connected to a pair of front gantry 4s and is used to adjust the up-and-down movement of the pair of front gantry 4s. The rear micro-head 7 is connected to a pair of rear gantry 5s and is used to adjust the up-and-down movement of the pair of rear gantry 5s. The base plate 801 is placed on the assembly module 3. The bottom fiber and the top fiber are placed on the base plate 801 and covered by the first cover plate 802 and the second cover plate 803. By adjusting the front micro-head 6, the pair of front gantry 4s move the front pressure strip 41 downward to press the first cover plate 802. By adjusting the rear micro-head 7, the pair of rear gantry 5s move the rear pressure strip 51 downward to press the second cover plate 803. After the first cover plate 802 and the second cover plate 803 are pressed, glue is applied and cured to fix the base plate 801, the first cover plate 802, the second cover plate 803 and the fiber 9 together with high precision. Finally, the cured component is removed and cut along the connection between the first cover plate 802 and the second cover plate 803 to obtain the final product. Figure 2 The fiber optic array shown precisely adjusts and fixes the distance between the fibers.

[0047] Preferably, the present invention further provides a method for fabricating a high-precision dual-row fiber optic array, applicable to the aforementioned high-precision dual-row fiber optic array fabrication equipment, mainly comprising the following steps:

[0048] S1: Place the base plate onto the assembly module;

[0049] S2: Place the bottom layer of optical fiber in the concave groove of the base plate; the concave groove can precisely control the spacing of the bottom layer of optical fiber;

[0050] S3: Cover the first concave groove with the first cover plate; the first cover plate can fix the bottom fiber optic cable;

[0051] S4: Adjust the front micro head so that the pair of front gantry frames drive the front pressure bar downward to press the first cover plate;

[0052] S5: Place the upper optical fiber in the second concave groove, above the bottom optical fiber.

[0053] S6: Cover the second concave groove with the second cover plate; the second cover plate can fix the upper optical fiber;

[0054] S7: Adjust the micrometer head so that the pair of rear gantry frames drive the rear pressure bar downward to press the second cover plate;

[0055] S8: Apply adhesive and cure to fix the base plate, optical fiber, first cover plate and second cover plate together;

[0056] S9: Remove the base plate and cut off the first concave groove section.

[0057] This invention provides a high-precision dual-row fiber optic array fabrication device. By setting multiple concave grooves on the base plate, with the height of the second concave groove being higher than that of the first concave groove, the bottom layer fiber is first fixed and covered by the first cover plate, and then pressed by the front pressure strip. Next, the upper layer fiber is placed on the bottom layer fiber and covered by the second cover plate, and then pressed by the rear pressure strip. Finally, the bottom layer fiber and the upper layer fiber are solidified. This invention can accurately adjust the distance between the fibers, is easy to manufacture, has a compact structure, achieves high-precision arrangement of the dual-row fiber optic array, and ensures the positioning accuracy between the fibers.

[0058] The present invention has been described in the above-described embodiments; however, these embodiments are merely examples for implementing the present invention. It must be noted that the disclosed embodiments do not limit the scope of the present invention. Conversely, any modifications and refinements made without departing from the spirit and scope of the present invention are within the scope of patent protection of the present invention.

Claims

1. A high-precision dual-row fiber optic array fabrication device, characterized in that, Includes an optical fiber fixing assembly, the optical fiber fixing assembly include: A base plate, which is a multi-segment concave groove. The depth of the first segment of the concave groove accommodates the bottom layer of optical fiber, and the depth of the second segment of the concave groove accommodates the bottom layer and the top layer of optical fiber. A first cover plate for covering the first concave groove; and A second cover plate is used to cover the second concave groove; The bottom layer optical fiber is placed in a multi-segment concave groove of the base plate, wherein the number of optical fibers is the same as the number of concave grooves, and each optical fiber is placed in a different concave groove. The first cover plate covers the first segment of the concave groove of the base plate, and then the upper layer optical fiber is placed on the bottom layer optical fiber, with each optical fiber of the upper layer optical fiber placed between two optical fibers of the bottom layer optical fiber. The second cover plate covers the second segment of the concave groove. After the bottom layer optical fiber and the upper layer optical fiber are solidified, the first segment of the concave groove is cut off. It also includes: a base; two nuts, which are disposed on both sides of the base; An assembly module is fixed to the base by the two nuts. The assembly module is used to hold the optical fiber fixing assembly. A pair of front gantry frames are symmetrically arranged on both sides of the assembly module and connected by a front pressure bar. The front gantry frames can drive the front pressure bar to move up and down. A pair of rear gantry frames are symmetrically arranged on both sides of the assembly module and connected by a rear pressure bar. The rear gantry frames can drive the rear pressure bar to move up and down. A front micro-head is connected to the pair of front gantry frames and is used to adjust the up and down movement of the pair of front gantry frames; A rear micrometer head is connected to the pair of rear gantry frames and is used to adjust the up and down movement of the pair of rear gantry frames; The base plate is placed on the assembly module. The bottom fiber and the top fiber are placed on the base plate and covered by the first cover plate and the second cover plate. The front micro-head is adjusted so that the pair of front gantry frames moves the front pressure bar downward to press the first cover plate. The rear micro-head is adjusted so that the pair of rear gantry frames moves the rear pressure bar downward to press the second cover plate.

2. The high-precision dual-row fiber optic array fabrication equipment according to claim 1, characterized in that: The concave groove is a V-shaped groove.

3. The high-precision dual-row fiber optic array fabrication equipment according to claim 2, characterized in that: The V-groove angle is set to 45 degrees to 90 degrees.

4. The high-precision dual-row fiber optic array fabrication equipment according to claim 2, characterized in that: The V-groove angle is set to 60 degrees.

5. The high-precision dual-row fiber optic array fabrication equipment according to claim 1, characterized in that: The concave groove can be a U-shaped groove or a square groove.

6. The high-precision dual-row fiber optic array fabrication equipment according to claim 1, characterized in that: The base plate can be made of glass, silicon wafers, ceramics, or metal.

7. A method for fabricating a high-precision dual-row fiber optic array, applicable to the high-precision dual-row fiber optic array fabrication equipment described in claim 1, the method comprising the following steps: S1: Place the base plate onto the assembly module; S2: Place the bottom layer of optical fiber in the concave groove of the base plate; S3: Cover the first concave groove with the first cover plate; S4: Adjust the front micro head so that the pair of front gantry frames drive the front pressure bar downward to press the first cover plate; S5: Place the upper optical fiber in the second concave groove, above the bottom optical fiber. S6: Cover the second concave groove with the second cover plate; S7: Adjust the rear micrometer head so that the pair of rear gantry frames drive the rear pressure bar to move downward and press the second cover plate; S8: Apply adhesive and cure to fix the base plate, optical fiber, first cover plate and second cover plate together; S9: Remove the base plate and cut off the first concave groove section.

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