Beam combining device of optical fiber side pump

Abstract

The utility model relates to the technical field of optical fiber preparation, in particular to a beam combining device of an optical fiber side pump, which comprises a lower base, a connecting block is mounted on one side of the lower base, an upper base is hinged to the connecting block, air chambers are formed in the upper base and the lower base, and air nozzles communicated with the corresponding air chambers are mounted on the outer sides of the upper base and the lower base. And adsorption blocks covering the corresponding air chambers are mounted on the opposite sides of the air chambers, and placement grooves are formed in the adsorption blocks. According to the beam combining device of the optical fiber side pump, optical fibers are placed in the corresponding placing grooves, the optical fibers seal the negative pressure openings, and the air nozzles are communicated with an external negative pressure device, so that negative pressure is generated in the air chambers, the air chambers are communicated with the negative pressure openings, the optical fibers of a specified number can be adsorbed and fixed, and position deviation caused by external vibration can be effectively avoided; and meanwhile, bonding aging failure can be avoided, then the upper base and the lower base are closed and are adsorbed and fixed through the magnets, so that the fixation of the optical fiber can be effectively improved, and meanwhile, disassembly and assembly are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of optical fiber preparation, in particular to a beam combining device for an optical fiber side pump. Background Art

[0002] A fiber-side pumped beam combiner is a key component in high-power laser systems. It efficiently couples multiple low-power pump beams into one or more gain media to achieve high-power laser output. In this system, ensuring the precise alignment and stable fixation of multiple optical fibers is crucial. This not only affects the quality of the laser output but also the overall efficiency and reliability of the system.

[0003] Traditionally, optical fiber fixation is typically achieved through bonding, mechanical clamping, or hot-melting. However, these methods may not provide sufficient stability in certain situations, especially in high-power applications. Furthermore, in industrial environments, equipment may be subject to external vibrations, causing the fiber to shift position. Over extended operation, some adhesives may age or fail, causing the fiber to loosen. Furthermore, mechanical structures can lose their original tightening effect due to wear. Inadequate fixation can reduce optical signal transmission efficiency or even damage the fiber. Utility Model Content

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a beam combining device for an optical fiber side pump, comprising a lower base, a connecting block installed on one side of the lower base, an upper base hinged on the connecting block, air chambers formed inside the upper base and the lower base, and air nozzles connected to the corresponding air chambers installed on the outside, and adsorption blocks covering the corresponding air chambers installed on the opposite sides, a placement groove provided on the adsorption block, and a plurality of negative pressure ports connected to the air chambers provided in the placement groove, and a magnet installed at least at one place on the opposite side of the upper base and the lower base.

[0005] Furthermore, a sealing ring is provided between the upper base, the lower base and the corresponding adsorption blocks.

[0006] Furthermore, a plurality of positioning holes and correction holes are provided on the adsorption block, the upper base and the lower base, and countersunk holes are provided at the positioning holes on the adsorption block.

[0007] Furthermore, a convex block that can extend into the corresponding air chamber is formed on the opposite side of the two adsorption blocks, and a plurality of notches are opened on the convex block, and the notches are connected to the negative pressure port.

[0008] Furthermore, the placement slots are three line slots, each line slot is provided with the negative pressure port, and a stepped air cavity connected to each negative pressure port is formed at the bottom of the adsorption block facing each slot.

[0009] Furthermore, a groove is provided on one side of the upper base, an opening and closing arm is hinged in the groove, and a concave surface adapted to the opening and closing arm is provided on the lower base.

[0010] Furthermore, the side surface of the opening and closing arm located in the groove is arc-shaped and has a slope formed on it, and magnets with the same direction are installed on the slope surface of the opening and closing arm and the top of the groove.

[0011] Compared with the existing technology, the technical solution of this application has the following beneficial effects:

[0012] The beam combining device of the optical fiber side pump places the optical fibers in the corresponding placement grooves. The optical fibers seal the negative pressure ports, and the air nozzles are connected to the external negative pressure device to generate negative pressure in the air chamber. The air chamber is connected to the negative pressure port to adsorb and fix a specified number of optical fibers, which can effectively avoid position displacement caused by external vibrations and also avoid aging and failure of bonding. Then, by closing the upper base and the lower base and fixing them by adsorption of magnets, the optical fibers can be effectively fixed and disassembly and assembly are also facilitated. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of the utility model;

[0014] Figure 2 It is a front cross-sectional view of the utility model;

[0015] Figure 3 This is a three-dimensional diagram of the present invention without the adsorption block;

[0016] Figure 4 A three-dimensional diagram of the adsorption block in the present invention;

[0017] Figure 5 This is a three-dimensional bottom view of the adsorption block in the present invention.

[0018] In the figure: 1. Lower base; 2. Upper base; 3. Air nozzle; 4. Sealing ring; 5. Air chamber; 6. Adsorption block; 7. Positioning hole; 8. Calibration hole; 9. Placement slot; 10. Bump; 11. Negative pressure port; 12. Opening and closing arm; 13. Magnet; 14. Stepped air cavity. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1-5In this embodiment, a beam combining device for an optical fiber side pump includes a lower base 1, a connecting block is installed on the lower base 1, an upper base 2 is hinged on the connecting block, an air chamber 5 is formed on the side opposite to the lower base 1 of the upper base 2, and an air nozzle 3 connected to the air chamber 5 is fixed on the left side of the lower base 1 and the top of the upper base 2, and an adsorption block 6 for sealing the air chamber 5 is installed on the side opposite to the lower base 1 and the upper base 2, and two magnets 13 are fixed on the opposite side, and the upper and lower opposite magnets 13 can be adsorbed, and a placement groove 9 is opened on the adsorption block 6, and the placement groove 9 is three line grooves, each line groove has three negative pressure ports 11, and the negative pressure port 11 is connected to the corresponding air chamber 5.

[0021] In the above structure, three optical fibers are placed in the grooves in sequence through the three grooves of the groove, so that the negative pressure port can be blocked, and then the external negative pressure device is connected to the air nozzle, and the air chamber is connected through the air nozzle to generate negative pressure, so that the corresponding optical fibers can be adsorbed and fixed through the negative pressure port, which is convenient for disassembly and assembly, and can also effectively prevent displacement caused by vibration. Then the upper base and the lower base are covered, and the lower base and the upper base are fixed under the adsorption of the magnet, and the optical fibers on the two adsorption blocks are clamped at the same time, which can also effectively improve the fixing effect of the optical fibers.

[0022] A sealing ring 4 is provided between the upper base 2 and the lower base 1 and the corresponding adsorption blocks 6. A protrusion 10 is formed on the opposite side of each adsorption block 6, and the protrusion 10 is adapted to the air chamber 5. When the adsorption blocks are installed on the lower and upper bases, the protrusions extend into the air chamber, serving as guides. At the same time, the adsorption blocks are in close contact with the sealing ring, thereby improving the sealing effect of the adsorption blocks on the air chamber after installation and avoiding gaps at the locations where the adsorption blocks abut the lower and upper bases, which could cause incomplete sealing.

[0023] In addition, four positioning holes 7 and two correction holes 8 are provided on the opposite side of the lower base 1 and the upper base 2 and on the adsorption block 6. The positioning holes 7 are threaded holes, and countersunk holes are provided on the adsorption block 6 at the positioning holes 7. First, positioning pins can be inserted into the correction holes on the lower base and the upper base, and then the correction holes on the adsorption block are also penetrated with the positioning pins. This can correct the position of the adsorption block, thereby avoiding the displacement of the adsorption block during installation. At the same time, it can also prevent the adsorption block from being slightly offset when tightening the screws. Therefore, the adsorption block can be accurately installed in the appropriate position. At the same time, the countersunk hole can allow the screw end to be screwed in in an embedded state, preventing the nut end from propping up part of the gap when closing and affecting the closure of the lower base and the lower base.

[0024] At the same time, the side of the protrusion 10 opposite the corresponding air chamber 5 is provided with three notches connected to the corresponding negative pressure ports 11. A stepped air cavity 14 connected to each negative pressure port 11 is also formed at the bottom of the adsorption block 6, directly opposite each notch. The stepped air cavity 14 is composed of two consecutively arranged waist holes, each of which gradually decreases along an axial direction. The largest waist hole is connected to the air chamber 5, and the smallest waist hole is connected to the corresponding negative pressure port 11. By adopting a design with waist holes arranged continuously from large to small, the fluid dynamics performance can be optimized, allowing air or gas to enter the interior of the device more smoothly, reducing flow resistance, thereby improving the overall suction efficiency, and thus improving the effect of optical fiber adsorption.

[0025] like Figure 1 and 2 The left side of the upper base 2 is provided with a groove, in which an opening and closing arm 12 is hinged. The opening and closing arm 12 is located on the side of the groove and is curved with a slope. The sloped surface of the opening and closing arm 12 and the top of the groove are both equipped with magnets 13 in the same direction. The lower base 1 is provided with a concave surface that matches the bottom of the opening and closing arm 12. When the lower base and the upper base are closed, the opening and closing arm can be embedded in the groove and the concave surface. When the upper base needs to be opened, the opening and closing arm is pushed upward. The opening and closing arm cooperates with the hinge to realize the lever principle to lift the upper base. At the same time, the magnet in the groove pushes the magnet on the opening and closing arm in the repulsive direction, thereby providing a repulsive force to assist in opening.

[0026] The working principle of the above embodiment is:

[0027] First, install the lower base in the appropriate position, then insert the external positioning pin into the correction hole in the lower base, and then penetrate the correction hole on the adsorption block and the positioning pin to play the role of correcting the adsorption block, and then screw it into the positioning hole to position the adsorption block. At the same time, the upper base repeats the above operation to complete the positioning of the adsorption block, and then place the optical fiber into the placement groove, so that the optical fiber will seal the negative pressure port of the placement groove, and then connect it with the external negative pressure device through the air nozzle, and connect it with the stepped air cavity and the negative pressure port through the air chamber to generate negative pressure to adsorb and position the optical fiber, and then close the lower base and the upper base, and use magnets to fix the optical fiber to improve the fixation effect of the optical fiber, which can effectively prevent the optical fiber from shifting. At the same time, when it needs to be opened, the opening and closing arm is pushed up, and the magnet in the groove will push the magnet on the opening and closing arm down, assisting the staff to open the upper base.

[0028] The entire workflow is complete, and all contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0029] It should be noted that in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fiber side pump beam combining device, characterized in that: The invention comprises a lower base (1), a connecting block is installed on one side of the lower base (1), an upper base (2) is hinged on the connecting block, an air chamber (5) is formed inside the upper base (2) and the lower base (1), and an air nozzle (3) connected to the corresponding air chamber (5) is installed on the outer side, and an adsorption block (6) covering the corresponding air chamber (5) is installed on the opposite side, a placement groove (9) is provided on the adsorption block (6), and a plurality of negative pressure ports (11) connected to the air chamber (5) are also provided in the placement groove (9), and a magnet (13) is installed at least at one place on the opposite side of the upper base (2) and the lower base (1).

2. The optical fiber side pump beam combining device according to claim 1, characterized in that: A sealing ring (4) is also provided between the upper base (2), the lower base (1) and the corresponding adsorption block (6).

3. The optical fiber side pump beam combining device according to claim 1, characterized in that: The adsorption block (6), the upper base (2) and the lower base (1) are all provided with a plurality of positioning holes (7) and correction holes (8), and the positioning holes (7) on the adsorption block (6) are provided with countersunk holes.

4. The optical fiber side pump beam combining device according to claim 3, characterized in that: The two adsorption blocks (6) are each formed with a protrusion (10) extending into the corresponding air chamber (5) on one side opposite to the other. The protrusion (10) is provided with a plurality of notches, and the notches are communicated with the negative pressure port (11).

5. The optical fiber side pump beam combining device according to claim 4, characterized in that: The placement slot (9) is three line slots, each line slot is provided with the negative pressure port (11), and a stepped air cavity (14) communicating with each negative pressure port (11) is formed at the bottom of the adsorption block (6) opposite to each slot.

6. The optical fiber side pump beam combining device according to claim 1, characterized in that: A groove is provided on one side of the upper base (2), an opening and closing arm (12) is hinged in the groove, and a concave surface adapted to the opening and closing arm (12) is provided on the lower base (1).

7. The optical fiber side pump beam combining device according to claim 6, characterized in that: The opening and closing arm (12) is located on the side of the groove and is in an arc shape, with a slope formed on the top, and magnets (13) in the same direction are installed on the slope surface of the opening and closing arm (12) and the top of the groove.

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