Microchip laser with sleeve structure

Abstract

The utility model discloses a microchip laser with a sleeve structure, which belongs to the technical field of lasers and comprises a sleeve, a first lens, a second lens, a laser crystal and a pump light input structural member. The pump light input structural member is arranged at one end, close to the first lens, of the sleeve, the pump light input structural member is integrally formed by an outer joint and an inner joint and is communicated with the interior of the sleeve, a fixing member is arranged at one end, close to the second lens, of the sleeve, a through hole is formed in the fixing member, and the laser crystal is installed in the through hole. The eccentric problem of elements in the horizontal direction and the vertical direction can be effectively avoided, meanwhile, the distance between the elements can be adjusted in a large range, the device is suitable for various lenses, the use compatibility of the device is improved, meanwhile, the structure is simple, operation is easy, the cost is reduced, meanwhile, the dimming difficulty can be reduced, and the production efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lasers, and more specifically to a microchip laser with a sleeve structure. Background Art

[0002] The microchip laser structure typically requires adjustments to the positions of components such as the fiber-optic pump module, one or two lenses, and the laser crystal. The pitch and horizontal angles of each component must also be adjusted. This requires extensive debugging of each component to ensure the final result meets the requirements.

[0003] Based on the above, the inventors found that most existing microchip lasers have complex structural parts. While it is necessary to ensure that the center position of the component is in the same straight line, it is also necessary to minimize the horizontal and vertical angular deviation of the component. Its operation is relatively inconvenient, and during the dimming process, a three-dimensional adjustment frame is usually required for adjustment, which makes dimming difficult. At the same time, the compatibility of existing microchip lasers is poor. After replacing the lens, a different base plate needs to be replaced. Therefore, different base plates need to be prepared according to different lenses, which increases the cost. Therefore, in view of this, the existing structure is studied and improved, and a microchip laser with a sleeve structure is provided to achieve a more practical purpose. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] In response to the problems existing in the prior art, the purpose of the present invention is to provide a microchip laser with a sleeve structure, which can effectively avoid the eccentricity problem of components in the horizontal and vertical directions, and can adjust the distance between each component in a wide range. It is suitable for a variety of lenses, improving its compatibility. At the same time, it has a simple structure, is easy to operate, reduces costs, and can also reduce the difficulty of dimming and improve production efficiency.

[0006] 2. Technical solution

[0007] In order to solve the above problems, the present invention adopts the following technical solutions.

[0008] A microchip laser with a sleeve structure includes a sleeve, lens 1, lens 2, a laser crystal, and a pump light input structure. Lens 1 and lens 2 are located inside the sleeve. The pump light input structure is arranged at an end of the sleeve near lens 1. The pump light input structure is integrally formed from an external joint and an internal joint and is connected to the interior of the sleeve. A fixing member is provided at the end of the sleeve near lens 2. A through hole is provided in the fixing member. The laser crystal is installed in the through hole. Snap ring 1, snap ring 2, snap ring 3, and snap ring 4 are threadedly connected to the interior of the sleeve. Snap ring 1 and snap ring 2 are located on either side of lens 1, and snap ring 3 and snap ring 4 are located on either side of lens 2.

[0009] Furthermore, the inner wall of the sleeve is provided with an internal thread.

[0010] Furthermore, the structures of the snap ring one, snap ring two, snap ring three and snap ring four are all the same annular structure, and the outer periphery is provided with an external thread that matches the internal thread of the inner wall of the sleeve, and is threadedly connected to the inner wall of the sleeve through the external thread.

[0011] Furthermore, the inner side walls of the snap ring 1, snap ring 2, snap ring 3 and snap ring 4 are each provided with a plurality of open grooves equidistantly distributed in a circular shape.

[0012] Furthermore, the first and second snap rings are respectively in contact with and connected to the edge positions on both sides of the lens one, and the third and fourth snap rings are respectively in contact with and connected to the edge positions on both sides of the lens two.

[0013] Furthermore, the outer periphery of the inner joint of the pump light input structure is provided with an external thread that matches the internal thread of the inner wall of the sleeve, and the inner joint of the pump light input structure is threadedly connected to the inner wall of the sleeve via the external thread.

[0014] Furthermore, the outer periphery of the fixing piece is provided with an external thread that matches the internal thread of the inner side wall of the sleeve, and the outer periphery of the fixing piece is threadedly connected to the inner side wall of the sleeve via the external thread.

[0015] Furthermore, the sleeve includes a left sleeve and a right sleeve, the snap ring 1 and the snap ring 2 are fixed on both sides of the lens 1 and are located in the left sleeve, and the snap ring 3 and the snap ring 4 are fixed on both sides of the lens 2 and are located in the right sleeve.

[0016] Furthermore, both ends of the left sleeve and the right sleeve are provided with external threads, and the outer circumferences of adjacent ends of the left sleeve and the right sleeve are connected by a connecting piece.

[0017] Furthermore, outer peripheries of the ends of the left sleeve and the right sleeve that are away from each other are respectively threadedly connected to the inner side wall of the internal joint of the pump light input structural component and the inner side wall of the fixing component.

[0018] 3. Beneficial effects

[0019] Compared with the prior art, the advantages of the present invention are:

[0020] (1) This solution can effectively reduce the number of structural parts through the combination of the sleeve and the retaining ring, and the overall structure is simple. At the same time, the two retaining rings in the sleeve can fix the lens, making the distance between each element continuously adjustable, which is convenient to operate. At the same time, it can also ensure that the horizontal and pitch positions of the element are perpendicular to the sleeve, avoiding the eccentricity problem of the element in the horizontal and vertical directions.

[0021] (2) This solution, through the setting of the sleeve, can ensure that there is no eccentricity or tilt between the various components. The dimming operation can be completed by simply adjusting the relative horizontal position. Compared with the traditional method, the difficulty of dimming is greatly reduced and the production efficiency is greatly improved.

[0022] (3) This solution, through the structural setting of the sleeve and with the cooperation of the retaining ring, can be compatible with lenses of different focal lengths and the same diameter, avoiding the traditional method of drilling holes in different positions due to different focal lengths. At the same time, the connection between the left sleeve and the right sleeve further expands the use of lenses with larger focal lengths, greatly improving its compatibility and greatly reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of Example 1 of the present utility model;

[0024] Figure 2 For the utility model Figure 1 Schematic diagram of the internal structure;

[0025] Figure 3 This is a schematic diagram of the disassembly structure of the lens 1, the clamping ring 1 and the clamping ring 2 of the present invention;

[0026] Figure 4 This is a schematic diagram of the split structure of the fixing piece and the laser crystal of the present invention;

[0027] Figure 5 This is a schematic diagram of the overall structure of the second embodiment of the present utility model;

[0028] Figure 6 For the utility model Figure 5 Schematic diagram of the internal structure;

[0029] Figure 7 This is a schematic diagram of the fixing part and laser crystal structure of the utility model.

[0030] Description of the numbers in the figure:

[0031] 1. Sleeve; 101. Left sleeve; 102. Right sleeve;

[0032] 2. Lens 1;

[0033] 3. Lens 2;

[0034] 4. Laser crystal;

[0035] 5. Pump light input structure;

[0036] 6. Fixing parts;

[0037] 7. Through hole;

[0038] 8. Snap ring 1;

[0039] 9. Snap ring 2;

[0040] 10. Snap ring three;

[0041] 11. Snap ring four;

[0042] 12. Connectors. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0044] Example 1:

[0045] See also Figure 1-4 A microchip laser with a sleeve structure includes a sleeve 1, a lens 1 2, a lens 2 3, a laser crystal 4 and a pump light input structure 5. The lens 1 2 and the lens 2 3 are located inside the sleeve 1. The pump light input structure 5 is arranged at the end of the sleeve 1 close to the lens 1 2. The pump light input structure 5 is integrally formed by an external joint and an internal joint and is connected to the interior of the sleeve 1. A fixing part 6 is provided at the end of the sleeve 1 close to the lens 2 3. A through hole 7 is opened inside the fixing part 6. The laser crystal 4 is installed inside the through hole 7. The sleeve 1 is threadedly connected with a clamping ring 1 8, a clamping ring 2 9, a clamping ring 3 10 and a clamping ring 4 11. The clamping ring 1 8 and the clamping ring 2 9 are located on both sides of the lens 1 2, and the clamping ring 3 10 and the clamping ring 4 11 are located on both sides of the lens 2 3.

[0046] See Figure 2 The inner wall of the sleeve 1 is provided with an internal thread.

[0047] See Figure 2 and Figure 3The structures of snap ring 1 8, snap ring 2 9, snap ring 3 10 and snap ring 4 11 are all the same annular structure, and the outer circumference is provided with an external thread that matches the internal thread of the inner wall of the sleeve 1, and is threadedly connected to the inner wall of the sleeve 1 through the external thread.

[0048] See Figure 2 and Figure 3 The inner side walls of the snap ring 1 8 , the snap ring 2 9 , the snap ring 3 10 and the snap ring 4 11 are all provided with a plurality of open grooves equidistantly distributed in an annular shape.

[0049] See Figure 2 and Figure 3 , the snap ring 1 8 and the snap ring 2 9 are respectively in contact with the edge positions on both sides of the lens 1 2 , and the snap ring 3 10 and the snap ring 4 11 are respectively in contact with the edge positions on both sides of the lens 2 3 .

[0050] See Figure 2 The outer periphery of the inner joint of the pump light input structural component 5 is provided with an external thread that matches the internal thread of the inner wall of the sleeve 1, and the inner joint of the pump light input structural component 5 is threadedly connected to the inner wall of the sleeve 1 through the external thread.

[0051] See Figure 2 The outer periphery of the fixing member 6 is provided with an external thread that matches the internal thread of the inner wall of the sleeve 1, and the outer periphery of the fixing member 6 is threadedly connected to the inner wall of the sleeve 1 through the external thread.

[0052] Example 2:

[0053] See also Figure 5-7 A microchip laser with a sleeve structure includes a sleeve 1, a lens 1 2, a lens 2 3 and a laser crystal 4. The lens 1 2 and the lens 2 3 are located inside the sleeve 1. A pump light input structure 5 is provided at the end of the sleeve 1 close to the lens 1 2. The pump light input structure 5 is integrally formed by an external joint and an internal joint and is connected to the interior of the sleeve 1. A fixing part 6 is provided at the end of the sleeve 1 close to the lens 2 3. A through hole 7 is opened inside the fixing part 6. The laser crystal 4 is installed inside the through hole 7. The sleeve 1 is threadedly connected with a clamping ring 1 8, a clamping ring 2 9, a clamping ring 3 10 and a clamping ring 4 11. The clamping ring 1 8 and the clamping ring 2 9 are located on both sides of the lens 1 2, and the clamping ring 3 10 and the clamping ring 4 11 are located on both sides of the lens 2 3.

[0054] See Figure 6 The inner wall of the sleeve 1 is provided with an internal thread.

[0055] See Figure 6 , the structures of snap ring 1 8, snap ring 2 9, snap ring 3 10 and snap ring 4 11 are the same, and the outer circumference is provided with an external thread that matches the internal thread of the inner wall of the sleeve 1, and is threadedly connected to the inner wall of the sleeve 1 through the external thread.

[0056] See Figure 6 The inner side walls of the snap ring 1 8 , the snap ring 2 9 , the snap ring 3 10 and the snap ring 4 11 are all provided with a plurality of open grooves equidistantly distributed in an annular shape.

[0057] See Figure 6 The sleeve 1 includes a left sleeve 101 and a right sleeve 102. The snap ring 1 8 and the snap ring 2 9 are fixed on both sides of the lens 1 2 and are located in the left sleeve 101. The snap ring 3 10 and the snap ring 4 11 are fixed on both sides of the lens 2 3 and are located in the right sleeve 102.

[0058] See Figure 6 External threads are provided on the outer peripheries of both ends of the left sleeve 101 and the right sleeve 102 , and the outer peripheries of adjacent ends of the left sleeve 101 and the right sleeve 102 are connected by a connecting piece 12 .

[0059] See Figure 6 The outer peripheries of the ends of the left sleeve 101 and the right sleeve 102 that are away from each other are respectively threadedly connected to the inner side wall of the joint of the pump light input structural component 5 and the inner side wall of the fixing component 6.

[0060] When in use: the inner thread of the sleeve 1 is opened. The diameter of the sleeve 1 is slightly larger than the diameter of the lens 1 2 and the lens 2 3, about 1mm. First, use the snap ring 1 8 and the snap ring 2 9 to fix the lens 1 2 into the sleeve 1, and then use the snap ring 3 10 and the snap ring 4 11 to fix the lens 2 3 into the sleeve 1. However, through the snap ring 1 8 and the snap ring 2 9 and the snap ring 3 10 and the snap ring 4 11 in the sleeve 1, the lens 1 2 and the lens 2 3 are fixed at the same time, and the distance between the two can be continuously adjusted to ensure that the horizontal and vertical pitch of the lens 1 2 and the lens 2 3 are perpendicular to the sleeve 1 to avoid the eccentricity problem. Then, the pump light is turned on. The internal joint of the input structure 5 and the fixing part 6 are respectively installed at the two ends of the sleeve 1. Finally, by emitting the pump light and observing the spot size of the light emitted from the sleeve 1 at different positions, the position of the pump light input structure 5 is fine-tuned, and the position of the pump light input structure 5 is fixed by glue. The laser crystal 4 is assembled with the fixing part 6. The fixing part 6 has an internal through hole 7 according to the shape of the laser crystal 4. During the actual debugging process, it is only necessary to rotate the position of the fixing part 6 on the sleeve 1 to realize the optical path debugging. After the light output can meet the requirements, the fixing part 6 and the sleeve 1 can be fixed by glue. The entire adjustment operation is convenient and quick.

[0061] Finally, it should be noted that in the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as a limitation on the present invention.

[0062] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0063] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any person skilled in the art who, within the technical scope disclosed in the present invention, makes equivalent substitutions or modifications based on the technical solution and its improved concepts shall be covered by the scope of protection of the present invention.

Claims

1. A microchip laser with a sleeve structure, comprising a sleeve (1), a lens 1 (2), a lens 2 (3), a laser crystal (4) and a pump light input structure (5), wherein the lens 1 (2) and the lens 2 (3) are located inside the sleeve (1), and characterized in that: The pump light input structural component (5) is arranged at one end of the sleeve (1) close to the lens one (2); the pump light input structural component (5) is integrally formed by an external joint and an internal joint, and is connected to the inside of the sleeve (1); a fixing component (6) is arranged at one end of the sleeve (1) close to the lens two (3); a through hole (7) is opened inside the fixing component (6); the laser crystal (4) is installed inside the through hole (7); a retaining ring one (8), a retaining ring two (9), a retaining ring three (10) and a retaining ring four (11) are threadedly connected inside the sleeve (1); the retaining ring one (8) and the retaining ring two (9) are located on both sides of the lens one (2); the retaining ring three (10) and the retaining ring four (11) are located on both sides of the lens two (3).

2. The microchip laser with a sleeve structure according to claim 1, characterized in that: The inner wall of the sleeve (1) is provided with an internal thread.

3. The microchip laser with a sleeve structure according to claim 1, characterized in that: The structures of the snap ring 1 (8), snap ring 2 (9), snap ring 3 (10) and snap ring 4 (11) are all the same annular structure, and the outer circumferences are all provided with external threads that match the internal threads of the inner wall of the sleeve (1), and are threadedly connected to the inner wall of the sleeve (1) through the external threads.

4. The microchip laser with a sleeve structure according to claim 1, characterized in that: The inner side walls of the snap ring one (8), the snap ring two (9), the snap ring three (10) and the snap ring four (11) are all provided with a plurality of opening grooves which are equidistantly distributed in an annular shape.

5. The microchip laser with a sleeve structure according to claim 1, characterized in that: The first clamp ring (8) and the second clamp ring (9) are respectively in contact with and connected to the edge positions on both sides of the lens one (2); the third clamp ring (10) and the fourth clamp ring (11) are respectively in contact with and connected to the edge positions on both sides of the lens two (3).

6. The microchip laser with a sleeve structure according to claim 1, characterized in that: The outer periphery of the inner joint of the pump light input structural component (5) is provided with an outer thread that matches the inner thread of the inner wall of the sleeve (1), and the inner joint of the pump light input structural component (5) is threadedly connected to the inner wall of the sleeve (1) via the outer thread.

7. The microchip laser with a sleeve structure according to claim 1, characterized in that: The outer circumference of the fixing member (6) is provided with an external thread that matches the internal thread of the inner wall of the sleeve (1), and the outer circumference of the fixing member (6) is threadedly connected to the inner wall of the sleeve (1) via the external thread.

8. The microchip laser with a sleeve structure according to claim 1, characterized in that: The sleeve (1) comprises a left sleeve (101) and a right sleeve (102); the first snap ring (8) and the second snap ring (9) are fixed on both sides of the first lens (2) and are located in the left sleeve (101); the third snap ring (10) and the fourth snap ring (11) are fixed on both sides of the second lens (3) and are located in the right sleeve (102).

9. The microchip laser with a sleeve structure according to claim 8, characterized in that: External threads are provided on the outer circumferences of both ends of the left sleeve (101) and the right sleeve (102), and the outer circumferences of adjacent ends of the left sleeve (101) and the right sleeve (102) are connected via a connecting piece (12).

10. The microchip laser with a sleeve structure according to claim 8, characterized in that: The outer peripheries of the ends of the left sleeve (101) and the right sleeve (102) that are away from each other are respectively threadedly connected to the inner side wall of the joint of the pump light input structural component (5) and the inner side wall of the fixing component (6).

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