Beam combiner test tool

Abstract

The utility model relates to a beam combiner testing tool which comprises a support, a sliding plate and a positioning piece. The sliding plate is slidably installed on the support in the width direction of the support. The positioning piece is fixed to the support and provided with a positioning groove extending in the length direction of the support. The positioning groove is used for completing positioning of the packaging base in the width direction; an avoiding groove corresponding to the positioning groove is formed in the sliding plate, and the packaging base is installed on the positioning groove through the avoiding groove; adjusting parts used for adjusting the heights of the two ends of the packaging base are arranged on the positioning grooves in the length direction. From optical fiber testing to beam combiner packaging, only one-time positioning needs to be carried out on the optical fiber, multiple sets of positioning tools are not needed, the packaging base used as the quartz substrate during testing is finally installed on the packaging base of the heat sink of the beam combiner, and the testing result is closer to the true value. The production efficiency is improved, the production cost is reduced, and the yield is improved.

Description

Technical Field

[0001] The utility model relates to the field of optical fiber manufacturing, in particular to a beam combiner testing tool. Background Art

[0002] Fiber combiners can be divided into two categories based on their function: power combiners and pump combiners. Power combiners combine multiple single-mode laser beams into a single fiber output to increase the laser's output power. They are also called single-mode-multimode fiber combiners. Pump combiners combine multiple pump beams into a single fiber output to increase pump power. They are also called multimode-multimode fiber combiners.

[0003] Whether it's a power combiner or a pump combiner, both require fusion splicing of optical fibers. A fiber combiner is a fiber optic device based on a fused-tapered fiber bundle. It strips the coating from a bundle of optical fibers, arranges them in a predetermined pattern, and then heats them at high temperatures to melt them. Simultaneously, the bundle is stretched in opposite directions, melting the heated areas of the fibers to form a fused-tapered bundle.

[0004] Chinese patent ZL202022858193.8 discloses an optical fiber combiner, an aluminum alloy heat sink, and a quartz packaging substrate. The heat sink includes a heat sink base and a heat sink cover, and the packaging substrate includes a packaging base and a packaging cover.

[0005] The main factors that restrict the performance of optical fiber combiners are the stray laser caused by coupling loss and the waste light at the coating interface, which are converted into waste heat inside the device and damage the combiner.

[0006] After optical fiber splicing, it needs to pass temperature rise detection before packaging to prevent waste heat from damaging the combiner and causing a decrease in product yield.

[0007] During testing, a dedicated first positioning fixture is used to position the input and output optical fibers on the test fixture's quartz substrate for temperature rise testing. Input and output optical fibers that fail the temperature rise test must be re-splice. Those that pass the temperature rise test are then secured to the quartz package substrate using a dedicated second positioning fixture. This secondary positioning requires two sets of dedicated positioning fixtures, multiple fixtures, and cumbersome procedures, resulting in low production efficiency. Utility Model Content

[0008] The utility model aims to provide a beam combiner testing tool capable of improving testing and packaging efficiency.

[0009] To achieve the above objectives, the technical solution of the present utility model is as follows.

[0010] The beam combiner test fixture consists of a bracket, a slide, and a positioning member. The slide is slidably mounted on the bracket along its width. The positioning member is fixed to the bracket and has a positioning slot extending along its length. The positioning slot is used to position the package base in the width direction. The slide has a corresponding avoidance slot, through which the package base is mounted. The positioning slot has adjustment sections along its length for adjusting the height of the package base at both ends.

[0011] As can be seen, the package base is mounted on the positioning slot, which positions the package base at a predetermined position along the width direction. The package base can be positioned at a predetermined height by operating the adjustment unit. The optical fiber to be tested is temporarily secured to the slide using a clamp or removable tape. The slide is adjusted in the width direction to align the optical fiber to be tested with the optical fiber receiving slot of the package base. The adjustment unit is then operated to raise the package base to a predetermined height and into contact with the optical fiber to be tested. If the optical fiber fails the temperature rise test, the clamp or tape temporarily securing the optical fiber is removed, the optical fiber is removed, and placed in a recycling bin (not shown). If the optical fiber passes the temperature rise test, the optical fiber is permanently secured to the package base near the end using an adhesive such as a light-curing adhesive (not shown). Once the optical fiber is permanently secured to the package base, the optical fiber and the package base are then mounted to the heat sink of the combiner. Clearly, from optical fiber testing to combiner assembly, the optical fiber only needs to be positioned once, eliminating the need for multiple sets of positioning fixtures. The package base used as the quartz substrate during testing is also the package base that is ultimately mounted to the heat sink of the combiner, resulting in test results that are closer to the actual value. It is beneficial to improve production efficiency, reduce production costs and improve yield rate.

[0012] Furthermore, preferably, the positioning groove completes the positioning of the package base in the width direction through a positioning surface extending along the height direction of the bracket, which is conducive to the positioning member installing package bases of various length specifications.

[0013] Furthermore, the positioning surfaces are a pair of planes perpendicular to the width direction, which facilitates the installation of packaging bases of various lengths and specifications on the positioning member, and facilitates the assembly, disassembly and positioning of the packaging base.

[0014] Furthermore, the adjusting portion is a pair of screws with heads facing downwards and passing through the positioning slots in the height direction. The structure is simple and easy to manufacture.

[0015] Furthermore, the positioning member is fixed to the bracket via an adapter, which has a simple structure, is easy to manufacture, and facilitates replacement of the positioning member.

[0016] Furthermore, the slide is provided with an optical fiber positioning groove extending along the length direction for positioning the optical fiber, which facilitates the rapid positioning of the optical fiber on the slide and improves the testing efficiency.

[0017] Furthermore, the bracket is provided with a guide groove extending in the width direction; the slide plate is slidably mounted on the bracket through the guide groove. The guide groove guides the slide plate, thereby improving the positioning efficiency of the slide plate.

[0018] Furthermore, the bracket comprises a horizontal plate and a foot seat fixed on the lower side of the horizontal plate, and has a simple structure and is easy to manufacture.

[0019] Furthermore, the slide is positioned on the guide groove by friction. The optical fiber is relatively light, and the friction generated by the slide's own weight is sufficient to position the slide and prevent it from slipping. The structure is simple, the operation is easy, and the slide positioning efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a three-dimensional diagram of the test fixture for the beam combiner of the present invention.

[0021] Figure 2 This is another three-dimensional diagram of the beam combiner testing tool of the present invention.

[0022] Figure 3 This is a three-dimensional schematic diagram of the utility model's combiner test fixture installed with the packaging base and the optical fiber to be tested.

[0023] Figure 4 This is an exploded diagram of a conventional optical fiber combiner without a packaging base and optical fibers installed.

[0024] Figure 5 This is a schematic diagram of an explosion after the optical fiber combiner is installed with a packaging base and optical fibers in the prior art.

[0025] Figure 6 This is a three-dimensional schematic diagram of the optical fiber combiner after the packaging base and optical fibers are installed in the prior art.

[0026] Figure 7 This is another embodiment of the positioning member of the present utility model. DETAILED DESCRIPTION

[0027] The present invention is described in detail below with reference to the accompanying drawings.

[0028] like Figure 1-3 As shown, the beam combiner test fixture 100 includes a bracket 10, a slide 20, and a positioning member 30. The slide 20 is slidably mounted on the bracket 10 along the width direction 01 of the bracket 10; the positioning member 30 is fixed to the bracket 10 and is provided with a positioning groove 31 extending along the length direction 02 of the bracket 10; the positioning groove 31 is used to complete the positioning of the package base 211 in the width direction 01; the slide 20 is provided with an avoidance groove 21 corresponding to the positioning groove 31, and the package base 211 is mounted on the positioning groove 31 through the avoidance groove 21; along the length direction 02, the positioning groove 31 is provided with an adjustment portion 32 for adjusting the height of the two ends of the package base 211.

[0029] The package base 211 is installed in the positioning groove 31. The positioning groove 31 positions the package base 211 at a predetermined position along the width direction 02. The package base 211 can be positioned at a predetermined height by operating the adjustment portion 32. The optical fiber 250 to be tested is temporarily secured to the slide 20 using a pressure block or removable tape 23. The slide 20 is adjusted in the width direction to align the optical fiber 250 to be tested with the fiber receiving groove 213 of the package base 211. The adjustment portion 32 is operated to raise the package base 211 to a predetermined height and contact the optical fiber 250 to be tested. If the optical fiber 250 fails the temperature rise test, the pressure block or tape 23 temporarily securing the optical fiber 250 is removed, and the optical fiber 250 is removed and placed in a recycling bin (not shown). If the optical fiber 250 passes the temperature rise test, the optical fiber 250 is permanently secured to the package base 211 at a position 214 near the end of the package base 211 using an adhesive such as a light-curing adhesive (not shown). Once the optical fiber 250 is permanently fixed to the package base 211, the optical fiber 250 and the package base 211 are mounted on the heat sink 220 of the combiner 200. This significantly reduces the need for multiple positioning fixtures, requiring only a single positioning of the optical fiber 250 from testing to packaging of the combiner 200. The package base 211 used as the quartz substrate during testing is also the package base 211 that is ultimately mounted on the heat sink 220 of the combiner 200. This results in test results that are closer to the actual value, improving production efficiency, reducing production costs, and increasing yield.

[0030] The adjusting portion 32 is not limited to a screw, and may also be a component for adjusting the height, such as a wedge, or other mechanism for adjusting the height, such as a mechanical structure similar to a jack.

[0031] Preferably, the positioning groove 31 completes the positioning of the package base 211 in the width direction 01 through the positioning surface 311 extending along the height direction 03 of the bracket 10. This facilitates the positioning member 30 to install package bases 211 of various length specifications.

[0032] Preferably, the positioning surface 311 is a pair of planes 312 perpendicular to the width direction 01. This facilitates the positioning member 30 to install the package base 211 of various length specifications, and facilitates the assembly, disassembly and positioning of the package base 211.

[0033] Preferably, the adjusting portion 32 is a pair of screws with heads facing downwards and passing through the positioning slot 31 along the height direction 03. The structure is simple and easy to manufacture.

[0034] Preferably, the positioning member 30 is fixed to the bracket 10 via an adapter 33. The structure is simple, easy to manufacture, and the replacement of the positioning member 30 is convenient.

[0035] Specifically, one end of the adapter 33 is fixed to the bracket 10 via a screw 34 , and the other end is fixedly connected to the positioning member 30 via a screw 35 .

[0036] Preferably, the slide plate 20 is provided with an optical fiber positioning groove 22 extending along the length direction 02 for positioning the optical fiber 250. This facilitates the rapid completion of positioning of the optical fiber 250 on the slide plate 20, thereby improving testing efficiency.

[0037] Preferably, the bracket 10 is provided with a guide groove 11 extending along the width direction 01; the slide plate 20 is slidably mounted on the bracket 10 through the guide groove 11. The guide groove 11 guides the slide plate 20, thereby improving the positioning efficiency of the slide plate 20.

[0038] Obviously, the guide groove 11 is not necessary, but is a preferred option.

[0039] Preferably, the bracket 10 includes a horizontal plate 12 and a foot 13 fixed to the lower side of the horizontal plate 12. The structure is simple and easy to manufacture.

[0040] Specifically, the horizontal plate 12 is fixed to the footrest 13 by screws 14 .

[0041] Preferably, the slide 20 is positioned on the guide groove 11 by friction. The optical fiber 250 is relatively light, and the friction generated by the slide 20's own weight is sufficient to position the slide 20 and prevent it from slipping. The structure is simple, the operation is easy, and the slide 20 positioning efficiency is high.

[0042] Figures 4 to 6 Schematic diagram of the packaging structure of the combiner 200. The combiner 200 includes a quartz packaging substrate 210, an aluminum alloy heat sink 220, and an optical fiber 250. The packaging substrate 210 includes a packaging base 211 and a packaging cover 212; the heat sink 220 includes a heat sink base 221 and a heat sink cover 222.

[0043] Specifically, the heat sink cover 222 is fixed to the heat sink base 221 by screws (not shown in the figure).

[0044] The positioning member 30 of the present invention is not limited to positioning the package base 211 through the plane 312 . Figure 7 Shown is another positioning member 301 of the present invention, which positions the cylindrical packaging base through the arc surface 302.

[0045] The above is a detailed description of the present invention in conjunction with specific embodiments, and the specific implementation methods of the present invention should not be considered to be limited to these descriptions. For those skilled in the art of the present invention, if a number of equivalent substitutions or obvious modifications are made without departing from the concept of the present invention and the performance or use are the same, they should be considered to fall within the scope of patent protection of the present invention as determined by the submitted claims.

Claims

1. A beam combiner test fixture (100), characterized in that: It includes a bracket (10), a slide plate (20) and a positioning member (30); The slide plate (20) is slidably mounted on the bracket (10) along a width direction (01) of the bracket (10); The positioning member (30) is fixed on the bracket (10), and a positioning groove (31) extending along the length direction (02) of the bracket (10) is provided on the positioning member (30); The positioning groove (31) is used to complete the positioning of the packaging base (211) in the width direction (01); The slide plate (20) is provided with an avoidance groove (21) corresponding to the positioning groove (31), and the packaging base (211) is installed on the positioning groove (31) through the avoidance groove (21); Along the length direction (02), the positioning groove (31) is provided with an adjusting portion (32) for adjusting the height of both ends of the packaging base (211).

2. The beam combiner test fixture (100) according to claim 1, characterized in that: The positioning groove (31) completes the positioning of the package base (211) in the width direction (01) via a positioning surface (311) extending along the height direction (03) of the bracket (10).

3. The beam combiner test fixture (100) according to claim 2, characterized in that: The positioning surfaces (311) are a pair of planes (312) perpendicular to the width direction (01).

4. The beam combiner test fixture (100) according to claim 2, characterized in that: The adjusting portion (32) is a pair of screws with their heads facing downwards, penetrating the positioning slot (31) along the height direction (03).

5. The beam combiner test fixture (100) according to claim 4, characterized in that: The positioning member (30) is fixed to the bracket (10) via an adapter (33).

6. The beam combiner test fixture (100) according to claim 4, characterized in that: The slide plate (20) is provided with an optical fiber positioning groove (22) extending along the length direction (02) and used for positioning the optical fiber (250).

7. The beam combiner test fixture (100) according to any one of claims 1 to 6, characterized in that: The bracket (10) is provided with a guide groove (11) extending along the width direction (01); The slide plate (20) is slidably mounted on the bracket (10) via the guide groove (11).

8. The beam combiner test fixture (100) according to any one of claims 1 to 6, characterized in that: The bracket (10) comprises a transverse plate (12) and a foot seat (13) fixed to the lower side of the transverse plate (12).

9. The beam combiner test fixture (100) according to claim 7, characterized in that: The slide plate (20) is positioned on the guide groove (11) by friction.

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