Water-cooled narrow-linewidth fiber laser

Abstract

The utility model discloses a water-cooled narrow-linewidth fiber laser, which comprises a metal bottom plate, positioning holes are arranged at corners inside the metal bottom plate, a magnetic suction base is mounted at the center of the top end of the metal bottom plate in an adsorption manner, and a narrow-linewidth fiber laser body is fixed at the top end of the magnetic suction base. The surface of the narrow-linewidth fiber laser body is provided with an air inlet hole, the surface of the narrow-linewidth fiber laser body below the air inlet hole is provided with a second interface, the surface of the narrow-linewidth fiber laser body on one side of the second interface is provided with a first interface, and one side of the bottom of the narrow-linewidth fiber laser body is provided with a refrigeration box. And a cooling plate is arranged on the other side of the bottom of the narrow-linewidth fiber laser body. According to the utility model, the purpose that the narrow-linewidth fiber laser body is easy to disassemble, assemble and maintain is achieved, water-cooled cooling can be carried out on the narrow-linewidth fiber laser body, and transfer-type heat exchange cooling and air-cooled cooling can be carried out on the narrow-linewidth fiber laser body.

Description

Technical Field

[0001] The utility model relates to the technical field of lasers, in particular to a water-cooled narrow-linewidth optical fiber laser. Background Art

[0002] With the continuous development of science and technology, narrow-linewidth fiber lasers have been widely used in gravitational wave detection, optical clocks, cold atom physics, coherent optical communications, optical precision measurement, and microwave photon signal processing due to their extremely high spectral purity, extremely large peak spectral density, ultra-long coherence length, and extremely low phase noise.

[0003] A compact water-cooled polarization-maintaining fiber laser with reference announcement number CN215008908U comprises a polarization-maintaining fiber laser housing, an installation chamber is arranged inside the polarization-maintaining fiber laser housing, a water-cooling device is arranged in the installation chamber, the water-cooling device comprises a storage cylinder arranged in the installation chamber and a micro water pump arranged on one side of the storage cylinder, a refrigeration component is arranged in the storage cylinder, the refrigeration component comprises a plurality of semiconductor refrigeration plates arranged in a matrix, a water inlet end of the micro water pump is provided with a water inlet pipe fixedly mounted on the storage cylinder and communicated with the storage cylinder, a water outlet end of the micro water pump is provided with a serpentine tube, the end of the serpentine tube is fixedly mounted on the storage cylinder and communicated with the storage cylinder, the fiber laser can perform water-cooling and temperature-lowering operation, which is beneficial to improving the cooling effect and bringing convenience to the user. According to the above, although the fiber laser can be well applied, it is usually not convenient to perform rapid disassembly and assembly, which makes the fiber laser inconvenient to repair and maintain, and often troubles people. Utility Model Content

[0004] The purpose of the utility model is to provide a water-cooled narrow-linewidth fiber laser to solve the problem that although the fiber laser mentioned in the above background technology can be well applied, it is usually not convenient to quickly disassemble and assemble the fiber laser, which makes it inconvenient to repair and maintain the fiber laser.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a water-cooled narrow-linewidth fiber laser, comprising a metal base plate, positioning holes are provided at the corner positions inside the metal base plate, a magnetic base is adsorbed and installed at the center position of the top of the metal base plate, a narrow-linewidth fiber laser body is fixed to the top of the magnetic base, an air inlet is provided on the surface of the narrow-linewidth fiber laser body, a second interface is provided on the surface of the narrow-linewidth fiber laser body below the air inlet, a first interface is provided on the surface of the narrow-linewidth fiber laser body on one side of the second interface, a refrigeration box is provided on one side of the bottom of the narrow-linewidth fiber laser body, a cooling plate is provided on the other side of the bottom of the narrow-linewidth fiber laser body, a serpentine cooling pipe is provided inside the cooling plate, one end of the serpentine cooling pipe extends to the outside of the cooling plate and is provided with a liquid outlet, and the other end of the serpentine cooling pipe extends to the outside of the cooling plate and is provided with a liquid inlet.

[0006] Preferably, a heat collecting plate is provided on the top of the narrow linewidth fiber laser body, the top end of the heat collecting plate extends to the outside of the narrow linewidth fiber laser body and is provided with heat dissipation fins, and the arrangement of the heat collecting plate and the heat dissipation fins allows the narrow linewidth fiber laser body to be cooled by transfer heat exchange.

[0007] Preferably, an air cooling body is provided on the outer wall of the narrow linewidth fiber laser body away from the air inlet, and three cooling fans are provided inside the air cooling body. The cooling fans are provided to cool the narrow linewidth fiber laser body by air cooling.

[0008] Preferably, a reflux pipe is provided at one end of the liquid outlet away from the serpentine cooling tube, and the end of the reflux pipe away from the liquid outlet is connected to the outer wall of the refrigeration box. Through the setting of the reflux pipe, the coolant inside the serpentine cooling tube can flow back to the inside of the refrigeration box.

[0009] Preferably, a circulating pump is installed at the bottom of the metal base plate between the refrigeration box and the cooling plate, and a first infusion tube is provided at one end of the circulating pump. The end of the first infusion tube away from the circulating pump is connected to the outer wall of the refrigeration box. The circulating pump is provided to transport the coolant inside the refrigeration box to the inside of the serpentine cooling tube.

[0010] Preferably, a second infusion tube is installed at one end of the circulation pump away from the first infusion tube, and the end of the second infusion tube away from the circulation pump is connected to one end of the liquid inlet, so that the coolant can be transported to the interior of the serpentine cooling tube through the arrangement of the second infusion tube.

[0011] Compared with the prior art, the utility model has the following beneficial effects: the water-cooled narrow linewidth fiber laser not only achieves the purpose of facilitating the disassembly and maintenance of the narrow linewidth fiber laser body, but also can perform water cooling on the narrow linewidth fiber laser body, and can perform transfer heat exchange cooling and air cooling on the narrow linewidth fiber laser body;

[0012] (1) By using a bolt to penetrate the positioning hole and screw it onto the installation platform, due to the setting of the magnetic base, when the magnetic base is adsorbed on the top of the metal base plate, the narrow linewidth fiber laser body can be placed by adsorption, and when the magnetic base is detached from the top of the metal base plate, the narrow linewidth fiber laser body can be quickly disassembled, thereby achieving the purpose of easy disassembly and maintenance of the narrow linewidth fiber laser body;

[0013] (2) The cooling liquid in the refrigeration box is transported from the liquid inlet to the serpentine cooling tube through the first and second liquid infusion tubes in sequence by a circulating pump. The cooling liquid flows inside the serpentine cooling tube and then flows back to the refrigeration box through the liquid outlet and the reflux tube. During this process, the cooling liquid inside the serpentine cooling tube releases a low-temperature medium and transmits it to the narrow linewidth fiber laser body, so that the inside of the narrow linewidth fiber laser body can be water-cooled, thereby reducing the phenomenon of burning of the narrow linewidth fiber laser body due to high temperature;

[0014] (3) The heat energy inside the narrow-linewidth fiber laser body is absorbed by the heat collecting plate, and the heat fins conduct the heat energy absorbed by the heat collecting plate to the outside of the narrow-linewidth fiber laser body, so as to achieve the purpose of transfer heat exchange and cooling. Then, the cooling fan is powered on to make the outside air flow into the inside of the narrow-linewidth fiber laser body through the air inlet, and then the heat energy is blown out to the outside environment by the cooling fan, so that the narrow-linewidth fiber laser body can be cooled by air, and the heat dissipation and cooling of the narrow-linewidth fiber laser body can be diversified, thereby improving the heat dissipation performance of the fiber laser during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the rear view structure of the narrow linewidth fiber laser body of the utility model;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the narrow linewidth fiber laser body of the utility model from top view;

[0018] Figure 4 It is a schematic diagram of the cross-sectional structure of the cooling plate of the utility model from top view.

[0019] In the figure: 1. Metal base plate; 101. Positioning hole; 2. Magnetic base; 3. Narrow linewidth fiber laser body; 301. First interface; 302. Second interface; 303. Air inlet; 4. Air-cooled body; 401. Cooling fan; 5. Heat collecting plate; 6. Cooling fins; 7. Cooling plate; 8. Serpentine cooling pipe; 9. Liquid outlet; 10. Liquid inlet; 11. Refrigeration box; 12. Circulation pump; 13. First infusion pipe; 14. Second infusion pipe; 15. Reflux pipe. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4 The utility model provides an embodiment: a water-cooled narrow linewidth fiber laser, comprising a metal bottom plate 1, a positioning hole 101 is provided at each corner position inside the metal bottom plate 1, a magnetic base 2 is adsorbed and installed at the center position of the top of the metal bottom plate 1, a narrow linewidth fiber laser body 3 is fixed on the top of the magnetic base 2, a heat collecting plate 5 is provided on the top of the narrow linewidth fiber laser body 3, and a heat collecting plate 5 is provided on the top of the heat collecting plate 5, and a heat dissipation fin 6 is provided on the top of the narrow linewidth fiber laser body 3;

[0022] When in use, the heat collecting plate 5 and the heat dissipating fins 6 are arranged so as to perform heat transfer cooling on the narrow linewidth fiber laser body 3;

[0023] An air cooling body 4 is provided on the outer wall of the narrow linewidth fiber laser body 3 away from the air inlet 303, and three cooling fans 401 are provided inside the air cooling body 4;

[0024] When in use, the cooling fan 401 is provided to cool the narrow linewidth fiber laser body 3 by air cooling;

[0025] An air inlet hole 303 is provided on the surface of the narrow linewidth fiber laser body 3, a second interface 302 is provided on the surface of the narrow linewidth fiber laser body 3 below the air inlet hole 303, a first interface 301 is provided on the surface of the narrow linewidth fiber laser body 3 on one side of the second interface 302, a refrigeration box 11 is provided on one side of the bottom of the narrow linewidth fiber laser body 3, a circulation pump 12 is installed at the bottom of the metal bottom plate 1 between the refrigeration box 11 and the cooling plate 7, a first infusion tube 13 is provided at one end of the circulation pump 12, and an end of the first infusion tube 13 away from the circulation pump 12 is connected to the outer wall of the refrigeration box 11;

[0026] When in use, the circulating pump 12 is provided to transport the coolant inside the refrigeration box 11 to the inside of the serpentine cooling pipe 8;

[0027] A second infusion tube 14 is installed at one end of the circulation pump 12 away from the first infusion tube 13, and one end of the second infusion tube 14 away from the circulation pump 12 is connected to one end of the liquid inlet 10;

[0028] When in use, the second liquid delivery tube 14 is provided so as to deliver the coolant to the interior of the serpentine cooling tube 8;

[0029] A cooling plate 7 is provided on the other side of the bottom of the narrow linewidth fiber laser body 3, a serpentine cooling pipe 8 is provided inside the cooling plate 7, one end of the serpentine cooling pipe 8 extends to the outside of the cooling plate 7 and is provided with a liquid outlet 9, a return pipe 15 is provided at one end of the liquid outlet 9 away from the serpentine cooling pipe 8, and one end of the return pipe 15 away from the liquid outlet 9 is connected to the outer wall of the refrigeration box 11;

[0030] When in use, the reflux pipe 15 is provided so that the coolant inside the serpentine cooling pipe 8 flows back to the inside of the refrigeration box 11;

[0031] The other end of the serpentine cooling pipe 8 extends to the outside of the cooling plate 7 and is provided with a liquid inlet 10 .

[0032] When the embodiment of the present application is in use, firstly, the bolt member is used to penetrate the positioning hole 101 and screwed into the installation platform. When the magnetic base 2 is adsorbed on the top of the metal base plate 1, the narrow linewidth fiber laser body 3 can be placed by adsorption. When the narrow linewidth fiber laser body 3 is pulled to remove the magnetic base 2 from the top of the metal base plate 1, the narrow linewidth fiber laser body 3 can be quickly disassembled to facilitate the disassembly and maintenance of the narrow linewidth fiber laser body 3. Then, the heat energy inside the narrow linewidth fiber laser body 3 is absorbed by the heat collecting plate 5, and the heat energy absorbed by the heat collecting plate 5 is conducted to the outside of the narrow linewidth fiber laser body 3 by the heat dissipation fins 6, so as to achieve the purpose of transfer heat exchange and cooling. Then, the heat dissipation fan 401 is powered on to operate, so that the outside air flows into the inside of the narrow linewidth fiber laser body 3 through the air inlet 303. Then, the heat energy is blown out to the external environment through the cooling fan 401, and the narrow linewidth fiber laser body 3 can be cooled by air. Finally, the cooling liquid inside the refrigeration box 11 is transported from the liquid inlet 10 to the serpentine cooling tube 8 through the first infusion tube 13 and the second infusion tube 14 through the circulation pump 12. The cooling liquid flows inside the serpentine cooling tube 8 and then flows back to the refrigeration box 11 through the liquid outlet 9 and the reflux tube 15. In this process, the cooling liquid inside the serpentine cooling tube 8 will release the low-temperature medium to be transmitted to the narrow linewidth fiber laser body 3, and the narrow linewidth fiber laser body 3 can be cooled by water. In addition, the refrigeration box 11 is set to be flat, and the height of the refrigeration box 11 is set to one third of the height of the narrow linewidth fiber laser body 3, so the refrigeration box 11 will not cause shielding to the air-cooled body 4, thereby completing the use of the fiber laser.

Claims

1. A water-cooled narrow-linewidth fiber laser, characterized in that: The invention comprises a metal bottom plate (1), wherein the metal bottom plate (1) is provided with positioning holes (101) at the corner positions inside the metal bottom plate (1), a magnetic base (2) is adsorbed and installed at the center position of the top of the metal bottom plate (1), a narrow line width fiber laser body (3) is fixed at the top of the magnetic base (2), an air inlet hole (303) is provided on the surface of the narrow line width fiber laser body (3), a second interface (302) is provided on the surface of the narrow line width fiber laser body (3) below the air inlet hole (303), and a second interface (302) is provided on one side of the second interface (302). A first interface (301) is provided on the surface of a narrow-linewidth fiber laser body (3); a refrigeration box (11) is provided on one side of the bottom of the narrow-linewidth fiber laser body (3); a cooling plate (7) is provided on the other side of the bottom of the narrow-linewidth fiber laser body (3); a serpentine cooling pipe (8) is provided inside the cooling plate (7); one end of the serpentine cooling pipe (8) extends to the outside of the cooling plate (7) and is provided with a liquid outlet (9); and the other end of the serpentine cooling pipe (8) extends to the outside of the cooling plate (7) and is provided with a liquid inlet (10).

2. A water-cooled narrow linewidth fiber laser according to claim 1, characterized in that: A heat collecting plate (5) is provided on the top of the narrow linewidth fiber laser body (3); the top end of the heat collecting plate (5) extends to the outside of the narrow linewidth fiber laser body (3) and is provided with heat dissipation fins (6).

3. The water-cooled narrow linewidth fiber laser according to claim 1, characterized in that: An air cooling body (4) is provided on the outer wall of the narrow linewidth fiber laser body (3) on the side away from the air inlet hole (303), and three cooling fans (401) are provided inside the air cooling body (4).

4. The water-cooled narrow linewidth fiber laser according to claim 1, characterized in that: A reflux pipe (15) is provided at one end of the liquid outlet (9) away from the serpentine cooling pipe (8), and one end of the reflux pipe (15) away from the liquid outlet (9) is connected to the outer wall of the refrigeration box (11).

5. The water-cooled narrow linewidth fiber laser according to claim 1, characterized in that: A circulating pump (12) is installed at the bottom of the metal base plate (1) between the refrigeration box (11) and the cooling plate (7), and a first liquid infusion pipe (13) is provided at one end of the circulating pump (12), and the end of the first liquid infusion pipe (13) away from the circulating pump (12) is connected to the outer wall of the refrigeration box (11).

6. The water-cooled narrow linewidth fiber laser according to claim 5, characterized in that: A second infusion tube (14) is installed at one end of the circulation pump (12) away from the first infusion tube (13); and one end of the second infusion tube (14) away from the circulation pump (12) is connected to one end of the liquid inlet (10).

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