High-power laser beam housing body

Abstract

The utility model discloses a high -power laser beam storage body is applied to the laser in the examination to the laser of terminal emission is stored and is absorbed, including the light inlet and with the light inlet communication's storage cavity, wherein, the laser of laser transmitter enters the storage cavity through the light inlet, be provided with laser absorption subassembly in the storage cavity, laser absorption subassembly can store and absorb the laser of incidence, and the laser energy after the storage can be heat dissipation with the mode of heat conduction, the utility model discloses a high -power laser beam storage body, avoids the laser of laser in the examination emission to the influence of surrounding space.

Description

Technical Field

[0001] This utility model belongs to the technical field of laser absorption devices, and particularly relates to a high-power laser beam receiver. Background Technology

[0002] Lasers are characterized by high brightness, high energy density, strong directionality, monochromaticity, and good coherence. Today, lasers have a wide range of applications in various fields such as industry, scientific research, and medicine. The laser beam emitted by a laser can be divided into visible light and invisible light by the human eye, each encompassing multiple wavelengths.

[0003] After installation and commissioning, lasers usually need to undergo aging or testing to verify their photoelectric performance and operational reliability. Generally, this is done through a laser testing system to verify whether the laser's performance indicators and reliability meet the design requirements. However, existing testing methods do not include laser absorption devices, which can easily cause light pollution and affect the surrounding environment.

[0004] In view of the above, this utility model is hereby proposed. Utility Model Content

[0005] This utility model provides a high-power laser beam containment device that solves the problem of light pollution caused by lasers during testing. The technical solution of this invention has many beneficial effects, as described below: A high-power laser beam receiver, suitable for absorbing the laser beam at the end of a laser beam during performance testing in a laser testing system, includes a light inlet nozzle and a receiving cavity connected to the light inlet nozzle. The laser emitted by the laser is detected by the laser testing system and then enters the receiving cavity through the light inlet nozzle; The containment cavity is equipped with a laser absorption component, which can absorb the laser at the end and dissipate the absorbed laser energy through heat conduction.

[0006] Preferably or optionally, the laser absorption assembly includes an energy absorber and a light absorber, wherein, The laser beam at the end is focused into the central region of the energy absorber through the light inlet nozzle. The energy absorber can partially absorb and split the laser beam at the end. The diffusely reflected laser beam formed after splitting can be absorbed by the light absorber.

[0007] Preferably or optionally, the receiving cavity includes a cylindrical body with an open structure on one axial side. The energy absorption element is a beam splitter with a conical structure. The small end of the beam splitter faces the light inlet nozzle, and the large end extends out of the axial side of the cylindrical body with an extension section. The extension section is used for heat dissipation after the beam splitter absorbs part of the laser energy at the end.

[0008] Preferably or optionally, the protruding section is configured with a uniform cross-section and is provided with heat sinks at circumferential intervals to increase heat dissipation efficiency.

[0009] Preferably or optionally, the light-absorbing element is a toothed rib, spaced apart along the inner circumferential surface of the cylinder, wherein, The tips of the toothed ribs can absorb laser light reflected into the cylinder by the energy absorption element.

[0010] Preferably or optionally, parallel ribs are provided on the outer ring surface of the cylinder at positions corresponding to the toothed ribs, and the parallel ribs are used for heat dissipation after the toothed ribs absorb energy.

[0011] Preferably or optionally, the bottom of the receiving cavity is provided with a heat dissipation plate, and the bottom surface of the heat dissipation plate is provided with a heat conduction base.

[0012] Preferably or optionally, the heat conduction base is provided with a heat dissipation device to accelerate the heat dissipation of the laser absorption component after absorbing laser energy.

[0013] Preferably, or optionally, it also includes a front reflection cavity, wherein a tapered hole is provided in the central region of the front reflection cavity, and the cross-section of the tapered hole increases sequentially along the laser entry direction to prevent diffuse reflection laser formed after partial laser beam splitting by the laser absorption component from flowing out of the receiving cavity or the front reflection cavity. The small end of the tapered hole is connected to the light inlet nozzle, and the large end is connected to the laser absorption component.

[0014] Compared with the prior art, the technical solution provided by this utility model has the following beneficial effects: The visible or non-visible laser beam emitted by the laser is efficiently collected. The laser beam at the end is absorbed by the laser absorption component, and the absorbed laser energy is dissipated by heat conduction. This can completely solve the problem of the laser beam affecting the surrounding environment during the aging and testing of the laser. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A three-dimensional view of a high-power laser beam containment device; Figure 2 A three-dimensional view of the front reflection cavity; Figure 3 This is a schematic diagram of the overall structure of the storage cavity; Figure 4 This is an axial view of the cylinder. Figure 5 A schematic diagram showing a beam splitter installed on the side of the cylinder; Figure 6 This is a front view of the light beam splitter; Figure 7 A schematic diagram showing a heat sink installed on the extended section of the optical beam splitter, wherein, 1. Light inlet nozzle; 2. Front reflection cavity; 3. Receiving cavity; 31. Cylinder; 32. Toothed ribs; 33. Parallel ribs; 4. Beam splitter; 41. Extended section; 42. Heat sink; 5. Heat conduction base; 51. Heat dissipation plate. Detailed Implementation

[0017] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. This utility model can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0018] It should be noted that various aspects of the embodiments described below are within the scope of the appended claims. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this invention, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number of aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using structures and / or functionalities other than one or more of the aspects set forth herein.

[0019] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. The drawings only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0020] Furthermore, specific details are provided in the following description to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that aspects can be practiced without these specific details. To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined as "first" and "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise stated, "a plurality of" means two or more.

[0021] Generally, during the aging and testing of lasers, the lasers output laser beams at a certain output power or the designed rated output power. Therefore, the proper containment and handling of these highly directional, high-energy-density laser beams in the environment is particularly necessary and important. Improper containment can cause significant danger, harm, and light pollution to the environment. In particular, the safety of people near the laser is a major concern, as the extremely high energy density of these visible or non-visible laser beams can cause almost irreversible damage to the retina and cornea. Therefore, personnel working with lasers must pay close attention to laser safety, especially the containment and protection measures for laser beams during aging and testing.

[0022] like Figures 1 to 7The high-power laser beam receiver shown is suitable for absorbing the end laser beam when testing the performance of a laser in a laser testing system. It includes a light inlet nozzle 1 and a receiving cavity 3 connected to the light inlet nozzle 1. After being detected by the laser testing system, the laser emitted by the laser enters the housing cavity 3 through the light inlet nozzle 1. Preferably, the housing cavity 3 is arranged in a cylindrical structure to facilitate heat dissipation and installation. The housing 3 is equipped with a laser absorption component. The laser absorption component can absorb the laser beam at the end and dissipate the absorbed laser energy through heat conduction. The laser absorption component can be a traditional laser absorption device or a newly developed laser absorption component, device or equipment. By setting a high-power laser beam receiver at the end of the laser testing system, the testing efficiency of the laser can be improved.

[0023] In one example, the laser absorption component includes an energy absorber and a light absorber. Diffuse reflection inevitably occurs during laser absorption, making it impossible to achieve a single-structure absorption of the energy percentage. Therefore, a two-part structure (energy absorber and light absorber) is designed. The laser beam at the end of the laser path is focused into the central region of the energy absorber after passing through the light inlet nozzle 1. The energy absorber can partially absorb and split the laser beam. The diffusely reflected laser beam formed after splitting can be absorbed by the light absorber. Specifically... The receiving cavity includes a cylindrical body 31, with an open structure on one side of the cylindrical body 31. The energy absorption component is a beam splitter 4 with a conical structure. The small end of the beam splitter 4 faces the light inlet nozzle 1, and the large end of the beam splitter 4 extends out of the side of the cylindrical body 31 with an extension section 41. The extension section 41 is used for heat dissipation after the beam splitter 4 absorbs part of the end laser energy. Preferably, the extension section 41 is configured with a uniform cross-section and is provided with heat sinks 42 at circumferential intervals to increase heat dissipation efficiency. Since the beam splitter 4 absorbs most of the end laser energy, it needs to accelerate heat dissipation, which can be achieved quickly through the heat sinks 42.

[0024] In one embodiment, the light-absorbing element is a toothed rib 32, which is spaced along the inner circumferential surface of the cylinder 31. Preferably, the toothed rib 32 is arranged in a conical structure. Since it is a diffusely reflected laser, the tooth tips of the toothed rib 32 can maximize the absorption of the laser reflected by the energy-absorbing element into the cylinder 31, avoiding multiple diffuse reflections that cause the laser to flow out of the cylinder 31. At the same time, it can achieve complete absorption of the laser energy at the end. It should be noted that the height of the toothed rib 32 depends on the design and should not interfere with or block the laser entering the cylinder 31, such as a height of 5-7 mm.

[0025] Furthermore, parallel ribs 33 are provided on the outer ring surface of the cylinder 31 at positions corresponding to the toothed ribs 32. The parallel ribs 33 are used for heat dissipation after the toothed ribs 32 absorb energy, so as to avoid the temperature inside the cylinder 31 being too high and affecting the efficiency of the energy absorption component in absorbing the main laser energy.

[0026] In some or all of the embodiments described above, a heat dissipation plate 51 or a heat conduction plate is provided at the bottom of the receiving cavity, and a heat conduction base 5 is provided on the bottom surface of the heat dissipation plate 51 or the heat conduction plate. Preferably, a heat dissipation device is provided inside the heat conduction base 5 to accelerate the heat dissipation of the laser absorption component after absorbing laser energy.

[0027] In some or all of the embodiments described above, a front reflection cavity 2 (preferably with a square structure for easy installation) is also included. A conical hole is provided in the central region of the front reflection cavity 2. The cross-section of the conical hole increases sequentially along the laser entry direction to prevent diffuse reflection laser formed after partial laser beam splitting by the laser absorption component from flowing out of the receiving cavity or the front reflection cavity 2. The small end of the conical hole is connected to the light inlet nozzle 1, and the large end is connected to the laser absorption component. The entire structure is made of metal, such as aluminum, stainless steel, or other materials.

[0028] Furthermore, the light inlet nozzle 1 is configured with a variable cross-section structure along the laser emission direction of the laser, preferably with a conical structure and an opening in the middle. The light inlet nozzle 1 is installed, for example, on the side of the front reflector cavity 2 away from the receiving cavity through a ring lug provided at the end.

[0029] Application Example 1: The beam spot diameter was measured to be 7.5 mm at a distance of 0.5 meters from the laser's output window. A high-power laser beam receiver was placed on the working platform of the laser testing system. The receiver was connected and fixed to the platform at a distance of 0.5 meters from the laser's output window along the laser's optical axis, and the axes of the input nozzle 1 and the beam splitter tip 411 were aligned with the laser's output axis. The laser emitted a visible green beam. During the testing operation, no visible green beam was observed outside the receiver, indicating almost complete containment. The laser beam emitted during the testing operation had no impact on the surrounding environment.

[0030] Application Example 2: A beam spot diameter of 5 mm was measured at 0.5 meters from the optical module's output port. A high-power laser beam receiver was placed on the module's test platform. The receiver was fixed to the platform at a distance of 0.5 meters from the module's output port along the module's optical axis, and the axes of the inlet nozzle 1 and beam splitter tip 411 were aligned with the module's output axis. The optical module emits an invisible near-infrared beam. The receiver is fixedly connected to the platform, and the invisible beam is completely contained within the receiver, converted into heat, and conducted to the platform for heat dissipation. The receiver structure is robust and reliable, and can be continuously used in high-power module testing.

[0031] In summary, this structure is an essential device for efficiently collecting visible or non-visible beams emitted by lasers during continuous aging or testing, completely solving the problem of laser beam impact on the surrounding environment during laser aging and testing. The product provided by this utility model has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to the utility model without departing from the inventive principle, and these improvements and modifications also fall within the protection scope of the utility model claims.

Claims

1. A high-power laser beam receiver, suitable for absorbing and collecting laser light emitted from the end of a laser during testing, characterized in that, Includes a light inlet nozzle and a receiving cavity communicating with the light inlet nozzle; The laser emitted by the laser enters the receiving cavity through the light inlet nozzle; The containment cavity is equipped with a laser absorption component, which can absorb the incident laser and dissipate the absorbed laser energy through heat conduction. The laser absorption assembly includes an energy absorber and a light absorber. The laser beam at the end is focused into the central region of the energy absorber through a light inlet nozzle. The energy absorber can partially absorb and split the laser beam at the end. The diffusely reflected laser beam formed after splitting can be absorbed by the light absorber. The receiving cavity includes a cylindrical body with an open structure on one side of the cylindrical body along the axial direction. The energy absorption component is a beam splitter with a conical structure. The small end of the beam splitter faces the light inlet nozzle, and the large end extends out of the side of the cylindrical body along the axial direction with an extension section. The extension section is used for heat dissipation after the beam splitter absorbs part of the laser energy at the end. The light-absorbing element is a toothed rib, which is spaced apart along the inner circumferential surface of the cylinder. The tips of the toothed ribs can absorb the laser light reflected into the cylinder by the energy-absorbing element.

2. The high-power laser beam receiver according to claim 1, characterized in that, The extended section is designed with a uniform cross-section and is equipped with heat sinks spaced circumferentially to increase heat dissipation efficiency.

3. The high-power laser beam receiver according to claim 1, characterized in that, Parallel ribs are provided on the outer ring surface of the cylinder at positions corresponding to the toothed ribs. The parallel ribs are used for heat dissipation after the toothed ribs absorb energy.

4. The high-power laser beam receiver according to any one of claims 1 to 3, characterized in that, The bottom of the receiving cavity is provided with a heat dissipation plate, and the bottom surface of the heat dissipation plate is provided with a heat conduction base.

5. The high-power laser beam receiver according to claim 4, characterized in that, The heat conduction base is equipped with a heat dissipation device to accelerate the heat dissipation of the laser absorption component after absorbing laser energy.

6. The high-power laser beam receiver according to claim 1, characterized in that, It also includes a front reflection cavity, the central region of which is provided with a tapered hole. The cross-section of the tapered hole increases sequentially along the laser entry direction to prevent diffuse reflection laser formed after partial laser beam splitting by the laser absorption component from flowing out of the receiving cavity or the front reflection cavity. The small end of the tapered hole is connected to the light inlet nozzle, and the large end is connected to the laser absorption component.

7. The high-power laser beam receiver according to claim 6, characterized in that, The light inlet nozzle is configured with a variable cross-section along the laser emission direction of the laser, and is mounted on the side of the front reflector cavity away from the receiving cavity via a ring lug at one end of the light inlet nozzle.

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