Precise adjusting structure of intermediate infrared laser

Abstract

The utility model discloses a precision adjusting structure of an intermediate infrared laser, which relates to the technical field of lasers and comprises a laser main body used for generating intermediate infrared laser; the cavity mirror assembly comprises a total reflection mirror arranged at one end of the laser device main body and an output reflection mirror arranged at the other end of the laser device main body, and a resonant cavity is formed between the total reflection mirror and the output reflection mirror so that the mid-infrared laser can be stably output; the adjusting assembly comprises a first adjusting part and a second adjusting part, the first adjusting part is connected with the output reflecting mirror to drive the output reflecting mirror to rotate, and the second adjusting part is connected with the total reflection mirror to drive the total reflection mirror to rotate; and the linkage assembly is arranged between the first adjusting part and the second adjusting part, so that the first adjusting part and the second adjusting part rotate synchronously. According to the technical scheme provided by the utility model, the problem that the existing intermediate infrared laser cannot meet the use requirements of different scenes is solved.

Description

Technical Field

[0001] This utility model relates to the field of laser technology, and in particular to a precision adjustment structure for a mid-infrared laser. Background Technology

[0002] Mid-infrared lasers are irreplaceable in fields such as molecular spectroscopy analysis, medical diagnosis (e.g., CO2 laser surgery), industrial precision machining (material thermal decomposition), and free-space optical communication. Existing mid-infrared lasers typically require pre-adjustment of the angle and spacing of the total internal reflection mirror (HR) and output mirror (OC) before use to ensure stable laser output.

[0003] However, existing mid-infrared lasers cannot meet the needs of different scenarios during use. Utility Model Content

[0004] The main purpose of this invention is to propose a precision adjustment structure for a mid-infrared laser, which aims to solve the problem that existing mid-infrared lasers cannot meet the needs of different application scenarios.

[0005] For the above purposes, the present invention proposes a precision adjustment structure for a mid-infrared laser, comprising:

[0006] The main body of the laser, used to generate mid-infrared laser;

[0007] The cavity mirror assembly includes a total reflection mirror disposed at one end of the laser body and an output reflection mirror disposed at the other end of the laser body, wherein a resonant cavity is formed between the total reflection mirror and the output reflection mirror to enable the mid-infrared laser to be output stably;

[0008] An adjustment assembly includes a first adjustment component and a second adjustment component, the first adjustment component being connected to the output reflector to drive the output reflector to rotate, and the second adjustment component being connected to the total reflection mirror to drive the total reflection mirror to rotate; and

[0009] A linkage component is disposed between the first adjusting component and the second adjusting component, so that the first adjusting component and the second adjusting component rotate synchronously.

[0010] In one embodiment, the linkage component includes:

[0011] The rotating rod has a through clearance hole on the second adjusting component, and one end of the rotating rod passes through the clearance hole and is connected to the first adjusting component.

[0012] A driving unit, wherein the driving unit is driven to the other end of the rotating rod to drive the rotating rod to rotate, such that the first adjusting component follows the rotation of the rotating rod; and

[0013] The second adjusting component has a limiting hole that communicates with the clearance hole. The limiting block is located on the outer surface of the rotating rod and extends along the length of the rotating rod. The limiting block abuts against the side wall of the limiting hole so that the second adjusting component rotates with the rotating rod.

[0014] In one embodiment, the first adjusting component includes a first bevel gear connected to the rotating rod, a second bevel gear meshing with the first bevel gear, and a first rotating rod connected to the second bevel gear, wherein the first rotating rod is connected to the output reflector;

[0015] The second adjusting component includes a third bevel gear sleeved on the outer circumferential surface of the rotating rod, a fourth bevel gear meshing with the third bevel gear, and a second rotating rod connected to the fourth bevel gear. The second rotating rod is connected to the total reflection mirror.

[0016] In one embodiment, the precision adjustment structure of the mid-infrared laser further includes a T-shaped sleeve having a first port, a second port, and a third port connected together. The rotating rod passes through the first port and the second port. The third bevel gear is movably connected to the inner wall of the second port via a bearing. The fourth bevel gear is movably connected to the inner wall of the third port via a bearing. The T-shaped sleeve is movably connected to the rotating rod to make the distance between the total reflection mirror and the output reflection mirror adjustable.

[0017] In one embodiment, the precision adjustment structure of the mid-infrared laser further includes a housing with a receiving space, wherein the laser body, the cavity mirror assembly, and the adjustment assembly are disposed within the receiving space.

[0018] In one embodiment, the housing is provided with a movable groove that communicates with the outside, and the T-shaped sleeve is provided with an extension that passes through the movable groove and extends toward the outside.

[0019] In one embodiment, the precision adjustment structure of the mid-infrared laser further includes a limiting member disposed on the extension of the T-shaped sleeve. The limiting member abuts against the side wall of the housing to restrict the movement of the T-shaped sleeve, or the limiting member separates from the side wall of the housing to allow the T-shaped sleeve to move.

[0020] In one embodiment, the sidewall of the housing is provided with a plurality of positioning holes spaced apart along the length of the housing, and the limiting member includes a spring pin, which is movably connected to the positioning hole.

[0021] In one embodiment, the precision adjustment structure of the mid-infrared laser further includes a support component disposed within the housing to support the first adjustment component and the linkage component.

[0022] In one embodiment, the support component includes:

[0023] A first support block, one end of which is fixedly connected to the inner wall of the housing, and the other end of which is movably connected to the first adjusting component; and

[0024] The second support block has one end fixedly connected to the inner wall of the housing, and the other end movably connected to the linkage component.

[0025] In the technical solution provided by this utility model, a stable mid-infrared laser is generated through a laser body. Furthermore, a cavity mirror assembly is used to achieve stable output of the mid-infrared laser. The cavity mirror assembly consists of a total reflection mirror and an output reflection mirror, respectively disposed at both ends of the laser body. The total reflection mirror has high reflectivity and is used to reflect the laser back into the resonant cavity, while the output reflection mirror allows a portion of the laser to pass through, thus achieving laser output. An adjustment component is used to precisely control the laser output intensity to meet the needs of different application scenarios. The adjustment component includes a first adjustment part and a second adjustment part, respectively connected to the output reflection mirror and the total reflection mirror. By driving the rotation of the output reflection mirror and the total reflection mirror, the angle of the resonant cavity can be finely adjusted. In addition, a linkage component is used to make the first and second adjustment parts rotate synchronously, thereby achieving synchronous and co-directional rotation of the output reflection mirror and the total reflection mirror, reducing errors during single-mirror adjustment. The technical solution proposed in this utility model embodiment, through the cooperation of the adjustment component and the linkage component, achieves precise control of the laser output, not only improving the performance stability of the laser but also meeting the diverse needs of different application scenarios for laser output characteristics. Attached Figure Description

[0026] 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 the structures shown in these drawings without creative effort.

[0027] Figure 1 A schematic diagram of the overall structure of an embodiment of the precision adjustment structure for a mid-infrared laser provided by this utility model;

[0028] Figure 2 A top view schematic diagram of an embodiment of the precision adjustment structure of the mid-infrared laser provided by this utility model;

[0029] Figure 3A schematic diagram of the structure of an embodiment of the adjustment component provided by this utility model;

[0030] Figure 4 An exploded view of an embodiment of the adjustment component provided by this utility model.

[0031] Explanation of icon numbers:

[0032] 10. Laser body; 20. Cavity mirror assembly; 21. Total reflection mirror; 22. Output reflection mirror; 30. Adjustment assembly; 31. First adjustment component; 311. First bevel gear; 312. Second bevel gear; 313. First rotating rod; 32. Second adjustment component; 321. Third bevel gear; 322. Fourth bevel gear; 323. Second rotating rod; 40. Linkage assembly; 41. Rotating rod; 42. Drive unit; 43. Limiting block; 50. T-shaped sleeve; 51. Extension part; 52. Spring pin; 60. Housing; 61. Positioning hole; 70. Support assembly; 71. First support block; 72. Second support block.

[0033] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only one part of the embodiments of the present utility model, and not all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0036] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0037] For mid-infrared lasers, existing mid-infrared lasers typically require pre-adjustment of the angles and spacing of the total reflection mirror (HR) and output mirror (OC) to ensure stable laser output. However, during use, existing mid-infrared lasers cannot meet the needs of different scenarios. Adjusting only the total reflection mirror or the output mirror can lead to a decrease in beam quality.

[0038] In view of this, the present invention provides a precision adjustment structure for a mid-infrared laser. The first adjustment component adjusts the angle of the output reflector, while the second adjustment component adjusts the angle of the total reflection mirror. Furthermore, the linkage component enables the output reflector and the total reflection mirror to rotate synchronously to achieve dynamic compensation and meet the usage requirements of different scenarios.

[0039] To better understand the above technical solution, the following detailed explanation is provided in conjunction with the accompanying drawings.

[0040] like Figure 1 , Figure 2 , Figure 3 As shown, this utility model provides a precision adjustment structure for a mid-infrared laser, comprising:

[0041] Laser body 10, used to generate mid-infrared laser;

[0042] The cavity mirror assembly 20 includes a total reflection mirror 21 disposed at one end of the laser body 10 and an output reflection mirror 22 disposed at the other end of the laser body 10. A resonant cavity is formed between the total reflection mirror 21 and the output reflection mirror 22 to stabilize the output of the mid-infrared laser.

[0043] Adjustment assembly 30 includes a first adjustment component 31 and a second adjustment component 32. The first adjustment component 31 is connected to the output reflector 22 to drive the output reflector 22 to rotate, and the second adjustment component 32 is connected to the total reflection mirror 21 to drive the total reflection mirror 21 to rotate; and

[0044] The linkage component 40 is disposed between the first adjusting component 31 and the second adjusting component 32, so that the first adjusting component 31 and the second adjusting component 32 rotate synchronously.

[0045] In this embodiment, a stable mid-infrared laser is generated by a laser body 10. A cavity mirror assembly 20, consisting of a total reflection mirror 21 and an output reflection mirror 22, is used to achieve stable output of the mid-infrared laser. The cavity mirror assembly 20 is located at both ends of the laser body 10. The total reflection mirror 21 has high reflectivity and is used to reflect the laser back into the resonant cavity, while the output reflection mirror 22 allows a portion of the laser to pass through, thus achieving laser output. An adjustment assembly 30 is used to precisely control the output intensity of the laser to meet the needs of different application scenarios. The adjustment assembly 30 includes a first adjustment component 31 and a second adjustment component 32, which are connected to the output reflection mirror 22 and the total reflection mirror 21, respectively. By driving the rotation of the output reflection mirror 22 and the total reflection mirror 21, the angle of the resonant cavity can be finely adjusted. Furthermore, a linkage assembly 40 is used to make the first adjustment component 31 and the second adjustment component 32 rotate synchronously, thereby achieving synchronous and co-directional rotation of the output reflection mirror 22 and the total reflection mirror 21, reducing errors during single-mirror adjustment. The technical solution proposed in this embodiment of the present invention achieves precise control of laser output through the cooperation of adjustment component 30 and linkage component 40, which not only improves the performance stability of the laser, but also meets the diverse needs of different application scenarios for laser output characteristics.

[0046] Specifically, the precision adjustment structure of the mid-infrared laser includes the laser body 10, the cavity mirror assembly 20, the adjustment assembly 30, and the linkage assembly 40.

[0047] The laser body 10 may generally include a pump source and a working medium. The pump source is used to generate optical radiation, and the working medium is used to receive the optical radiation emitted by the pump source to generate mid-infrared laser. The material can be selected to have high gain in the mid-infrared band.

[0048] The cavity mirror assembly 20 consists of an output reflector 22 and a total reflection mirror 21, which are respectively set at both ends of the working medium to form a resonant cavity for reflecting laser light and forming standing wave oscillation.

[0049] The adjustment assembly 30 consists of a first adjustment component 31 and a second adjustment component 32. The first adjustment component 31 is connected to the output reflector 22 to adjust the angle of the output reflector 22, and the second adjustment component 32 is connected to the total reflection mirror 21 to adjust the angle of the total reflection mirror 21. Adjustment can be performed manually or automatically. Of course, to improve the stability of the mid-infrared laser, a partition layer can be provided between the adjustment assembly 30 and the cavity mirror assembly 20, and slots or holes for connection can be formed in the partition layer.

[0050] The linkage component 40 is connected to the first adjustment component 31 and the second adjustment component 32 to achieve synchronous and unidirectional rotation of the output reflector 22 and the total reflection mirror 21, thereby enabling dynamic balance and rapid stabilization of the resonant cavity. In this embodiment, the linkage component 40 can transmit its power to the first adjustment component 31 and the second adjustment component 32 through mechanical structures such as gears, connecting rods, or flexible hinges, ensuring that their angle changes remain synchronized. It is understood that when the linkage component 40 drives the first adjustment component 31 and the second adjustment component 32 to move in synergy, the output reflector 22 and the total reflection mirror 21 can achieve synchronous directional rotation; when the linkage component 40 drives the first adjustment component 31 and the second adjustment component 32 to move in the opposite direction, the output reflector 22 and the total reflection mirror 21 can achieve synchronous directional rotation in opposite directions, thus meeting the usage requirements of different scenarios.

[0051] Furthermore, refer to Figure 2 , Figure 3 In one embodiment of this utility model, the linkage component 40 includes:

[0052] The rotating rod 41 has a through clearance hole on the second adjusting component 32, and one end of the rotating rod 41 passes through the clearance hole and is connected to the first adjusting component 31.

[0053] Drive unit 42, which is motive-connected to the other end of the rotating rod 41 to drive the rotating rod 41 to rotate, so that the first adjusting member 31 follows the rotation of the rotating rod 41; and

[0054] The limiting block 43 is provided on the outer surface of the rotating rod 41 and extends along the length direction of the rotating rod 41. The limiting block 43 abuts against the side wall of the limiting hole so that the second adjusting component 32 rotates with the rotating rod 41.

[0055] In this embodiment, the linkage component 40 may further include a rotating rod 41, a driving part 42, and a limiting block 43. The rotating rod 41 is the core transmission shaft, with its two ends connected to the first adjusting component 31 and the driving part 42, respectively, and is responsible for power transmission and angle synchronization. The second adjusting component 32 has a clearance hole, which allows the rotating rod 41 to pass through and maintain axial freedom. The limiting block 43 is disposed on the outer surface of the rotating rod 41 and embedded in the limiting hole of the second adjusting component 32, transmitting rotational torque to the second adjusting component 32 through sidewall contact. The driving part 42 is typically a stepper motor or a manual knob, providing rotational driving force. In this embodiment, the driving part 42 drives the rotating rod 41 to rotate around its axis, causing the first adjusting component 31 to rotate directly. At the same time, when the rotating rod 41 rotates, the limiting block 43 contacts the sidewall of the limiting hole, forcing the second adjusting component 32 to rotate synchronously in the same direction as the rotating rod 41, thereby achieving synchronous rotation of the first adjusting component 31 and the second adjusting component 32.

[0056] Furthermore, refer to Figure 2 , Figure 4 In one embodiment of the present invention, the first adjusting component 31 includes a first bevel gear 311 connected to the rotating rod 41, a second bevel gear 312 meshing with the first bevel gear 311, and a first rotating rod 313 connected to the second bevel gear 312. The first rotating rod 313 is connected to the output reflector 22.

[0057] The second adjusting component 32 includes a third bevel gear 321 sleeved on the outer peripheral surface of the rotating rod 41, a fourth bevel gear 322 meshing with the third bevel gear 321, and a second rotating rod 323 connected to the fourth bevel gear 322. The second rotating rod 323 is connected to the total reflection mirror 21.

[0058] In this embodiment, the first adjusting component 31 may include a first bevel gear 311, a second bevel gear 312, and a first rotating rod 313. The second adjusting component 32 may include a third bevel gear 321, a fourth bevel gear 322, and a second rotating rod 323. In this embodiment, the rotating rod 41 is driven by the driving unit 42 to rotate around its axis, simultaneously driving the first bevel gear 311 and the third bevel gear 321 to rotate synchronously. When the first bevel gear 311 rotates, it drives the second bevel gear 312, which meshes perpendicularly with it, changing the rotation direction from axial to radial. This causes the output reflector 22 to rotate around its own axis via the first rotating rod 313. When the third bevel gear 321 rotates, it drives the fourth bevel gear 322, which meshes perpendicularly with it, similarly changing the axial rotation to radial. This causes the total reflection mirror 21 to rotate in the same direction via the second rotating rod 323. It should be noted that the first bevel gear 311 and the second bevel gear 312 have the same module, number of teeth, and helix angle as the third bevel gear 321 and the fourth bevel gear 322, ensuring a consistent transmission ratio.

[0059] Furthermore, refer to Figure 3 , Figure 4 In one embodiment of this utility model, the precision adjustment structure of the mid-infrared laser further includes a T-shaped sleeve 50. The T-shaped sleeve 50 has a first port, a second port, and a third port that are connected. The rotating rod 41 passes through the first port and the second port. The third bevel gear 321 is movably connected to the inner wall of the second port through a bearing. The fourth bevel gear 322 is movably connected to the inner wall of the third port through a bearing. The T-shaped sleeve 50 is movably connected to the rotating rod 41 so that the distance between the total reflection mirror 21 and the output reflection mirror 22 is adjustable.

[0060] In this embodiment, the precision adjustment structure of the mid-infrared laser may further include a T-shaped sleeve 50. Through the T-shaped sleeve 50 and the bevel gear assembly, the dual functions of synchronous rotation of the total reflection mirror and the output reflection mirror 22, as well as dynamic adjustment of the cavity length, are achieved. The T-shaped sleeve 50 also provides support for the second rotating rod 323. In this embodiment, when the T-shaped sleeve 50 moves along the length of the rotating rod 41, it can drive the third bevel gear 321 and the fourth bevel gear 322 to translate as a whole, adjusting the distance between the total reflection mirror 21 and the output reflection mirror 22 to change the cavity length of the resonant cavity. It should be noted that the clearance hole is provided on the third bevel gear 321, allowing the third bevel gear 321 to move along the length of the rotating rod 41, while the rotating rod 41 abuts against the side wall of the clearance hole via a limiting block 43 to achieve transmission with the third bevel gear 321.

[0061] Furthermore, refer to Figure 1 , Figure 2In one embodiment of the present invention, the precision adjustment structure of the mid-infrared laser further includes a housing 60 with a receiving space, wherein the laser body 10, the cavity mirror assembly 20 and the adjustment assembly 30 are disposed in the receiving space.

[0062] In the technical solution adopted in this embodiment, the housing 60 can provide a highly stable working environment for the core components of the laser, enabling stable output of mid-infrared laser.

[0063] Furthermore, refer to Figure 1 , Figure 2 In one embodiment of the present invention, the housing 60 is provided with a movable groove that communicates with the outside, and the T-shaped sleeve 50 is provided with an extension 51, which passes through the movable groove and extends toward the outside.

[0064] In this embodiment, the T-shaped sleeve 50 can be easily moved, thereby adjusting the cavity length. In this embodiment, the extension 51 can be a connecting plate, one end of which is connected to the T-shaped sleeve, and the other end extends outward through the movable groove. The T-shaped sleeve 50 can be moved by driving the connecting plate to move within the movable groove. Of course, in order to maintain the high cleanliness and stability inside the housing 60, an elastic seal can also be provided on the inner wall of the movable groove. The material and structure of the elastic seal are not limited here, as long as they can prevent external contaminants from entering the housing 60 and allow the extension 51 to move within the movable groove.

[0065] Furthermore, refer to Figure 1 , Figure 2 In one embodiment of the present invention, the precision adjustment structure of the mid-infrared laser further includes a limiting member disposed on the extension 51 of the T-shaped sleeve 50. The limiting member abuts against the side wall of the housing 60 to restrict the movement of the T-shaped sleeve 50, or the limiting member separates from the side wall of the housing 60 to allow the T-shaped sleeve 50 to move.

[0066] In the technical solution adopted in this embodiment, the precision adjustment structure of the mid-infrared laser may also include a limiting component. In this embodiment, the limiting component may be a bolt or a threaded rod, which is threadedly connected to one end of the extension 51 located outside the housing 60. When it is necessary to move the T-shaped sleeve 50, the bolt or threaded rod is rotated to move the bolt or threaded rod away from the side wall of the housing 60 until it is separated from the side wall of the housing 60, thereby realizing the movement of the T-shaped sleeve 50. When it is necessary to position the T-shaped sleeve 50, the bolt or threaded rod is rotated in the opposite direction to move the bolt or threaded rod closer to the side wall of the housing 60 until it abuts against the side wall of the housing 60, thereby realizing the fixation of the T-shaped sleeve 50.

[0067] Furthermore, refer to Figure 1 , Figure 2 In one embodiment of the present invention, the sidewall of the housing 60 is provided with a plurality of positioning holes 61 spaced apart along the length of the housing 60, and the limiting member includes a spring pin 52, which is movably connected to the positioning holes 61.

[0068] In the technical solution adopted in this embodiment, the limiting member can also be a spring pin 52. The spring pin 52 has a head and a tail, the tail is fixedly connected to the extension 51, and the head is inserted into the positioning hole 61. When it is necessary to move the T-shaped sleeve 50, the spring pin 52 is pulled to separate the head of the spring pin 52 from the positioning hole 61, thereby realizing the movement of the T-shaped sleeve 50. When it is necessary to position the T-shaped sleeve 50, the spring pin 52 is released, and the head of the spring pin 52 is inserted into the positioning hole 61 under the action of the spring force, thereby realizing the fixation of the T-shaped sleeve 50.

[0069] Furthermore, refer to Figure 2 In one embodiment of the present invention, the precision adjustment structure of the mid-infrared laser further includes a support component 70, which is disposed inside the housing 60 to support the first adjustment component 31 and the linkage component 40.

[0070] In this embodiment, the technical solution allows for the maintenance of the adjustment accuracy of the first adjusting component 31 while withstanding extreme working conditions, thereby improving the stability of the first adjusting component 31 and the linkage assembly 40. In this embodiment, the support assembly 70 can be a multi-point contact support, disposed on the inner sidewall of the housing 60, and movably connected to the first adjusting component 31 and the linkage assembly 40.

[0071] Furthermore, refer to Figure 2 , Figure 3 In one embodiment of this utility model, the support component 70 includes:

[0072] A first support block 71, one end of which is fixedly connected to the inner wall of the housing 60, and the other end of which is movably connected to the first adjusting component 31; and

[0073] The second support block 72 has one end fixedly connected to the inner wall of the housing 60, and the other end movably connected to the linkage component 40.

[0074] In the technical solution adopted in this embodiment, the support component 70 may further include a first support block 71 and a second support block 72. The first rotating rod 313 of the first adjusting component 31 can be rotatably connected to the first support block 71 through a ball bearing. The rotating rod 41 of the linkage component 40 can also be rotatably connected to the second support block 72 through a ball bearing, thereby achieving smooth rotation.

[0075] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A precision adjustment structure for a mid-infrared laser, characterized in that, include: The main body of the laser, used to generate mid-infrared laser; The cavity mirror assembly includes a total reflection mirror disposed at one end of the laser body and an output reflection mirror disposed at the other end of the laser body, wherein a resonant cavity is formed between the total reflection mirror and the output reflection mirror to enable the mid-infrared laser to be output stably; The adjustment assembly includes a first adjustment component and a second adjustment component. The first adjustment component is connected to the output reflector to drive the output reflector to rotate, and the second adjustment component is connected to the total reflection mirror to drive the total reflection mirror to rotate. as well as A linkage component is disposed between the first adjusting component and the second adjusting component, so that the first adjusting component and the second adjusting component rotate synchronously.

2. The precision adjustment structure of the mid-infrared laser as described in claim 1, characterized in that, The linkage component includes: The rotating rod has a through clearance hole on the second adjusting component, and one end of the rotating rod passes through the clearance hole and is connected to the first adjusting component. A driving unit, wherein the driving unit is driven to the other end of the rotating rod to drive the rotating rod to rotate, such that the first adjusting component follows the rotation of the rotating rod; and The second adjusting component has a limiting hole that communicates with the clearance hole. The limiting block is located on the outer surface of the rotating rod and extends along the length of the rotating rod. The limiting block abuts against the side wall of the limiting hole so that the second adjusting component rotates with the rotating rod.

3. The precision adjustment structure of the mid-infrared laser as described in claim 2, characterized in that, The first adjusting component includes a first bevel gear connected to the rotating rod, a second bevel gear meshing with the first bevel gear, and a first rotating rod connected to the second bevel gear. The first rotating rod is connected to the output reflector. The second adjusting component includes a third bevel gear sleeved on the outer circumferential surface of the rotating rod, a fourth bevel gear meshing with the third bevel gear, and a second rotating rod connected to the fourth bevel gear. The second rotating rod is connected to the total reflection mirror.

4. The precision adjustment structure of the mid-infrared laser as described in claim 3, characterized in that, The precision adjustment structure of the mid-infrared laser also includes a T-shaped sleeve, which has a first port, a second port, and a third port that are connected. The rotating rod passes through the first port and the second port. The third bevel gear is movably connected to the inner wall of the second port through a bearing. The fourth bevel gear is movably connected to the inner wall of the third port through a bearing. The T-shaped sleeve is movably connected to the rotating rod so that the distance between the total reflection mirror and the output reflection mirror is adjustable.

5. The precision adjustment structure of the mid-infrared laser as described in claim 4, characterized in that, The precision adjustment structure of the mid-infrared laser also includes a housing with a receiving space, in which the laser body, the cavity mirror assembly, and the adjustment assembly are located.

6. The precision adjustment structure of the mid-infrared laser as described in claim 5, characterized in that, The housing is provided with a movable groove that communicates with the outside, and the T-shaped sleeve is provided with an extension that passes through the movable groove and extends toward the outside.

7. The precision adjustment structure of the mid-infrared laser as described in claim 6, characterized in that, The precision adjustment structure of the mid-infrared laser also includes a limiting member disposed on the extension of the T-shaped sleeve. The limiting member abuts against the side wall of the housing to restrict the movement of the T-shaped sleeve, or the limiting member separates from the side wall of the housing to allow the T-shaped sleeve to move.

8. The precision adjustment structure of the mid-infrared laser as described in claim 7, characterized in that, The sidewall of the housing is provided with a plurality of positioning holes spaced apart along the length of the housing, and the limiting member includes a spring pin, which is movably connected to the positioning hole.

9. The precision adjustment structure of the mid-infrared laser as described in claim 5, characterized in that, The precision adjustment structure of the mid-infrared laser also includes a support component, which is located inside the housing to support the first adjustment component and the linkage component.

10. The precision adjustment structure of the mid-infrared laser as described in claim 9, characterized in that, The support components include: A first support block, one end of which is fixedly connected to the inner wall of the housing, and the other end of which is movably connected to the first adjusting component; and The second support block has one end fixedly connected to the inner wall of the housing, and the other end movably connected to the linkage component.

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