An adjustable laser crystal water-cooled heat sink device and adjustment system

Abstract

The utility model discloses an adjustable laser crystal water-cooled heat sink device and an adjustment system, the device includes a first fixed block and a second fixed block, the first fixed block is provided with a first water-cooling pipeline channel, a first accommodating groove and a plurality of first positioning holes, the second fixed block is provided with a second water-cooling pipeline channel, a second accommodating groove and a plurality of second positioning holes, the first fixed block is connected to the first positioning hole and the second positioning hole by a fastening adjustment member to install the first fixed block above the second fixed block, after the first fixed block and the second fixed block are installed, the first accommodating groove and the second accommodating groove cooperate with each other to form a target accommodating groove, the target accommodating groove is used to install a target laser crystal, and the distance between the bottom of the first accommodating groove and the bottom of the second accommodating groove is adjusted based on the fastening adjustment member. The present application can realize the adjustment of the pressing force of the target laser crystal, so that the target laser crystal is in a fastened state with better beam quality output.

Description

Technical Field

[0001] The utility model belongs to the technical field of solid laser cooling, and in particular relates to an adjustable laser crystal water-cooled heat sink device and an adjustment system. Background Art

[0002] The rapid development and widespread application of laser technology are driving the continuous progress of modern industry and high-end equipment industry. However, with the continuous development and application of high-power, high-energy lasers, the stable operation of lasers faces a key challenge, namely thermal effect. At present, water cooling technology is mainly used in the market to solve this problem. This technology uses materials with high thermal conductivity to make heat sinks, wraps the laser crystal in it, and sets water channels in the heat sink for water cooling, so as to effectively dissipate heat and maintain the stability of the laser.

[0003] However, when water cooling is used, the laser crystal is squeezed and deformed, which can easily reduce the collimation of the light beam output by the laser crystal, affecting the beam quality of the output laser. In particular, the unique structure of the square laser crystal is more susceptible to the squeeze of the heat sink.

[0004] To ensure the high-quality working state of the laser, the packaging state of the laser crystal in the heat sink needs to be finely adjusted to keep it stable in the heat sink, neither loose nor excessively squeezed and deformed. However, there is almost no relevant technology on the market that takes this into account, and this is also an area that needs further research and improvement. Utility Model Content

[0005] In view of the deficiencies of the prior art, the purpose of the utility model is to provide an adjustable laser crystal water-cooled heat sink device and an adjustment system, which solves the problem in the prior art that the quality of the output laser beam is reduced due to excessive extrusion and deformation of the laser crystal in the heat sink.

[0006] According to one aspect of the present application, an adjustable laser crystal water-cooled heat sink device is disclosed, the device comprising a first fixed block and a second fixed block, the first fixed block being provided with a first water-cooling pipeline channel, a first receiving groove and a plurality of first positioning holes, the second fixed block being provided with a second water-cooling pipeline channel, a second receiving groove and a plurality of second positioning holes that correspond one-to-one to the first positioning holes, the first fixed block connecting the first positioning hole and the second positioning hole through a fastening adjustment member to install the first fixed block above the second fixed block, after the first fixed block and the second fixed block are installed, the first receiving groove and the second receiving groove cooperate with each other to form a target receiving groove, the target receiving groove is used to install a target laser crystal, and the distance between the bottom of the first receiving groove and the bottom of the second receiving groove is adjusted based on the fastening adjustment member.

[0007] In an implementable scheme, the plurality of first positioning holes include at least two groups symmetrically arranged on both sides of the first accommodating groove, each group includes at least one first positioning hole, and the plurality of second positioning holes include at least two groups symmetrically arranged on both sides of the second accommodating groove, each group includes at least one second positioning hole.

[0008] In an implementable scheme, the first accommodating groove is constructed as a triangular structure, the second accommodating groove is constructed as a triangular structure, and the target accommodating groove is constructed as a diamond structure. The first accommodating groove includes a first groove bottom with a first arc-shaped groove formed on the first groove bottom, and the second accommodating groove includes a second groove bottom with a second arc-shaped groove formed on the second groove bottom.

[0009] Furthermore, the first accommodating groove further includes a first groove wall, which transitions to the bottom surface of the first fixing block in a circular arc, and the second accommodating groove further includes a second groove wall, which transitions to the top surface of the second fixing block in a circular arc.

[0010] In yet another feasible solution, the first receiving groove is configured as a rectangular structure, the second receiving groove is configured as a rectangular structure, and the target receiving groove is configured as a rectangular structure.

[0011] Furthermore, a mounting plate extends from the second fixing block, and the second fixing block is mounted on the adjustment seat through the mounting plate.

[0012] In an implementable solution, a mounting groove is provided on the mounting plate, and the position of the second fixing block on the adjustment seat is adjustable based on the mounting groove.

[0013] According to another aspect of the present application, the present application also discloses an adjustment system, which includes a laser emitter, a first beam splitter prism, a second beam splitter prism, a first reflector, a second reflector, an observation plate, and an adjustable laser crystal water-cooled heat sink device as described in any of the above items, wherein the laser emitter, the first beam splitter prism, the laser crystal water-cooled heat sink device, and the first reflector are arranged in parallel in sequence, the second reflector is arranged below the first beam splitter prism, the second beam splitter prism is arranged below the first reflector, the second beam splitter prism is used to coherently combine and then reflect the first light beam reflected by the first reflector and the second light beam reflected by the second reflector, and the observation plate is used to receive the combined light beam transmitted by the second beam splitter prism and display the interference fringes of the combined light beam.

[0014] In an implementable solution, both the first beam splitter prism and the second beam splitter prism are BS beam splitter prisms, and the BS beam splitter prisms do not change the polarization state of the light beam.

[0015] In one feasible solution, the laser emitter is a helium-neon laser.

[0016] The present application discloses an adjustable laser crystal water-cooled heat sink device, which can be used in an optical path system. The device includes a first fixed block and a second fixed block, the first fixed block is provided with a first water-cooling pipeline channel, a first receiving groove and a plurality of first positioning holes, the second fixed block is provided with a second water-cooling pipeline channel, a second receiving groove and a plurality of second positioning holes that match the first positioning holes one by one, the first fixed block connects the first positioning hole and the second positioning hole through a fastening adjustment member to install the first fixed block above the second fixed block, after the first fixed block and the second fixed block are installed, the first receiving groove and the second receiving groove cooperate with each other to form a target receiving groove, the target receiving groove is used to install a target laser crystal, and the distance between the bottom of the first receiving groove and the bottom of the second receiving groove is adjusted based on the fastening adjustment member. The present application can adjust the distance between two relative groove bottoms, thereby realizing the adjustment of the clamping force of the target laser crystal, so that the state of the laser crystal in the heat sink device is neither too tight nor too loose, and the target laser crystal is adjusted to a tight state with better beam quality output, thereby improving the beam quality output by the laser crystal in the optical path system. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0018] Figure 1 This is a structural schematic diagram of an adjustable laser crystal water-cooled heat sink device according to an embodiment of the utility model;

[0019] Figure 2 This is a structural schematic diagram of the first fixing block of an embodiment of the utility model;

[0020] Figure 3 It is a schematic plan view of an angle of the first fixing block of an embodiment of the utility model;

[0021] Figure 4 It is a plan view of the first fixing block of the embodiment of the utility model from another angle;

[0022] Figure 5 It is a plan view of the first fixing block of the embodiment of the utility model from another angle;

[0023] Figure 6 This is a structural schematic diagram of the second fixing block of an embodiment of the utility model;

[0024] Figure 7It is a schematic plan view of an angle of the second fixing block of an embodiment of the utility model;

[0025] Figure 8 It is a plan view of the second fixing block of the embodiment of the utility model from another angle;

[0026] Fig. 9 It is a plan view of the second fixing block of the embodiment of the utility model from another angle;

[0027] Fig.10 This is another structural schematic diagram of the adjustable laser crystal water-cooled heat sink device of the embodiment of the utility model;

[0028] Fig.11 It is a structural schematic diagram of the regulating system of an embodiment of the utility model;

[0029] Fig.12 It is a schematic diagram of uniform distribution of interference fringes of a mixed light beam in an embodiment of the utility model;

[0030] Fig.13 It is a schematic diagram of the non-uniform distribution of interference fringes of a mixed light beam in an embodiment of the utility model;

[0031] In the figure, 1-first fixed block, 11-first positioning hole, 12-first water-cooling pipeline channel, 13-first accommodating groove, 14-first arc-shaped groove, 15-first groove wall, 2-second fixed block, 21-second positioning hole, 22-second water-cooling pipeline channel, 23-second accommodating groove, 24-second arc-shaped groove, 25-second groove wall, 3-mounting plate, 31-mounting groove, 4-laser emitter, 5-first beam splitter prism, 6-adjustable laser crystal water-cooled heat sink device, 7-first reflector, 8-second reflector, 9-second beam splitter prism, 10-observation plate. DETAILED DESCRIPTION

[0032] 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 of 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.

[0033] According to one aspect of the present application, an adjustable laser crystal water-cooled heat sink device is disclosed, specifically, Figures 1 to 9As shown, the device includes a first fixed block 1 and a second fixed block 2, the first fixed block 1 is provided with a first water-cooling pipeline channel 12, a first receiving groove 13 and a plurality of first positioning holes 11, the second fixed block 2 is provided with a second water-cooling pipeline channel 22, a second receiving groove 23 and a plurality of second positioning holes 21 which match the first positioning holes 11 one by one, the first fixed block 1 is connected with the first positioning hole 11 and the second positioning hole 21 by a fastening adjustment member to install the first fixed block 1 above the second fixed block 2, after the first fixed block 1 and the second fixed block 2 are installed, the first receiving groove 13 and the second receiving groove 23 cooperate with each other to form a target receiving groove, the target receiving groove is used to install a target laser crystal, and the distance between the bottom of the first receiving groove 13 and the bottom of the second receiving groove 23 is adjusted based on the fastening adjustment member. Specifically, in the embodiment of the present application, the clamping force of the first fixed block 1 on the second fixed block 2 can be adjusted by adjusting the fastening adjustment piece, thereby adjusting the squeezing force of the target laser crystal in the target receiving groove, so that the target laser crystal remains in a stable state in the heat sink device of the present application, neither loose nor excessively squeezed and deformed, thereby improving the collimation of the light beam output by the target laser crystal and improving the quality of the light beam output by the target laser crystal.

[0034] Specifically, in one example, Figure 1 As shown, the first water-cooling pipeline channel 12 can be arranged on the first fixed block 1 along the X direction, and the first water-cooling pipeline channel 12 avoids the first positioning hole 11 and the first receiving groove 13, and the second water-cooling pipeline channel 22 can be arranged on the second fixed block 2 along the X direction, and the second water-cooling pipeline channel 22 avoids the second positioning hole 21 and the second receiving groove 23. Exemplarily, the first water-cooling pipeline can be set in one, two or other numbers, and the second water-cooling pipeline channel 22 can be set in one, two or other numbers, and the specific number can be set according to actual needs. Further, in other feasible schemes, the first water-cooling pipeline channel 12 can also be arranged on the first fixed block 1 along the Y direction or the Z direction, and the second water-cooling pipeline can also be arranged on the second fixed block 2 along the Y direction or the Z direction, wherein, when the first water-cooling pipeline is arranged in any direction of the X, Y or Z direction, the second water-cooling pipeline can be arranged in any direction of the X direction, the Y direction or the Z direction. Furthermore, the number, size or direction of the first water-cooling pipeline channel 12 and the second water-cooling pipeline channel 22 are symmetrically distributed to achieve uniform heat dissipation of the entire device, reduce the temperature difference between the upper and lower surfaces of the target laser crystal, and enhance the heat dissipation effect. In an implementable solution, the plurality of first positioning holes 11 include at least two groups symmetrically arranged on both sides of the first receiving groove 13, each group including at least one first positioning hole 11, and the plurality of second positioning holes 21 include at least two groups symmetrically arranged on both sides of the second receiving groove 23, each group including at least one second positioning hole 21. Preferably, in this embodiment, continue to refer to Figures 1 to 3 , Figures 5 to 7 As shown, the first positioning holes 11 include two groups arranged on both sides of the first receiving groove 13, each group includes two first positioning holes 11, and the second positioning holes 21 include two groups arranged on both sides of the second receiving groove 23, each group includes two second positioning holes 21. It can be understood that the symmetrical arrangement of the first positioning holes 11 or the symmetrical arrangement of the second positioning holes 21 can achieve uniform distribution of the fastening force on both sides of the target receiving groove when adjusting the fastening adjustment member, thereby improving the uniformity of the extrusion of the target receiving groove on the target laser crystal.

[0035] In an practicable solution, in this example, the target laser crystal is a directional structure, the first accommodating groove 13 is constructed as a triangular structure, the second accommodating groove 23 is constructed as a triangular structure, the target accommodating groove is constructed as a rhombus structure, the first accommodating groove 13 includes a first groove bottom, and a first arc groove 14 is provided on the first groove bottom, and the second accommodating groove 23 includes a second groove bottom, and a second arc groove 24 is provided on the second groove bottom. It can be understood that by providing an arc groove at the groove bottom, the arc groove can be used as an avoidance groove for the edge of the target laser crystal with a square structure, which plays a certain protective role on the edge of the target laser crystal and reduces the degree of damage to the edge of the target laser crystal when the first fixing block 1 applies a fastening force to the second fixing block 2 due to right-angle contact.

[0036] Furthermore, the first accommodating groove 13 further includes a first groove wall 15, which forms an arc transition with the bottom surface of the first fixing block 1, and the second accommodating groove 23 further includes a second groove wall 25, which forms an arc transition with the top surface of the second fixing block 2. It can be understood that the arc transition between the groove wall and the fixing block can provide a certain avoidance space for the edge of the target laser crystal, thereby reducing damage to the edge.

[0037] In another feasible solution, Fig.12 As shown, the first receiving groove 13 is configured as a rectangular structure, the second receiving groove 23 is configured as a rectangular structure, and the target receiving groove is configured as a rectangular structure.

[0038] It can be understood that the diamond-shaped or rectangular structure of the target receiving groove in the above example is only a preferred embodiment. In other feasible schemes, the target receiving groove can also be constructed as a circular structure, or other structures that match the shape of the target laser crystal. The specific setting can be based on the shape of the target laser crystal, and no specific limitation is made here.

[0039] For further information, see Figure 1 , Figures 6 to 8As shown, a mounting plate 3 is also extended from the second fixed block 2, and the second fixed block 2 is mounted on the adjustment seat through the mounting plate 3. In an operative solution, a mounting groove 31 is provided on the mounting plate 3, and the position of the second fixed block 2 on the adjustment seat is adjustable based on the mounting groove 31. It can be understood that mounting the adjustable laser crystal water-cooled heat sink device 6 on the adjustment seat through the mounting plate 3 is only a preferred embodiment, and in other operative solutions, the adjustable laser crystal water-cooled heat sink device 6 can also be connected based on screws, or can be clamped on the adjustment seat.

[0040] According to another aspect of the present application, the present application also discloses a regulating system, specifically, as Fig.11 As shown, the system includes a laser emitter 4, a first beam splitter prism 5, a second beam splitter prism 9, a first reflector 7, a second reflector 8, an observation plate 10, and an adjustable laser crystal water-cooled heat sink device 6 of any of the above items. The laser emitter 4, the first beam splitter prism 5, the laser crystal water-cooled heat sink device, and the first reflector 7 are arranged in parallel in sequence, the second reflector 8 is arranged below the first beam splitter prism 5, the second beam splitter prism 9 is arranged below the first reflector 7, the second beam splitter prism 9 is used to coherently combine the first light beam reflected by the first reflector 7 and the second light beam reflected by the second reflector 8, and then reflect, and the observation plate 10 is used to receive the combined light beam transmitted by the second beam splitter prism 9 and display the interference fringes of the combined light beam. In an operative solution, the first beam splitter prism 5 and the second beam splitter prism 9 are both BS beam splitters, and the BS beam splitters do not change the polarization state of the light beam. In an operative solution, the laser emitter 4 is a helium-neon laser. Specifically, the laser emitter 4 emits 633nm red light, and the red light beam is divided into two beams after passing through the first beam splitter prism 5, namely the first beam a and the second beam b. The first beam a passes through the adjustable laser crystal water-cooled heat sink device 6 and is emitted to the first reflector 7, and is reflected to the second beam splitter prism 9 by the first reflector 7. The second beam b is reflected to the second beam splitter prism 9 by the second reflector 8. The first beam a and the second beam b are coherently combined at the second beam splitter prism 9 to obtain a combined beam, and the combined beam displays interference fringes on the observation plate 10. It can be understood that if the target laser crystal is over-squeezed or unevenly stressed in the adjustable laser crystal water-cooled heat sink device 6, the interference fringes displayed on the observation plate 10 are unevenly distributed, for example, Fig.13 As shown, at this time, the squeezing force on the target laser crystal can be changed by adjusting the fastening adjustment member, thereby changing the wavefront phase through the adjustable laser crystal water-cooled heat sink device 6, so that the equiphase surfaces are in the same plane, so that the interference fringes are evenly distributed, for example Fig.12 Through the adjustment system, the state of the target laser crystal in the heat sink device can be adjusted to a tightened state with better beam quality output, so as to be suitable for the target optical path.

[0041] The adjustable laser crystal water-cooled heat sink device disclosed in the present application includes a first fixed block 1 and a second fixed block 2. The first fixed block 1 is provided with a first water-cooling pipeline channel 12, a first receiving groove 13 and a plurality of first positioning holes 11. The second fixed block 2 is provided with a second water-cooling pipeline channel 22, a second receiving groove 23 and a plurality of second positioning holes 21 that match the first positioning holes 11 one by one. The first fixed block 1 is connected with the first positioning hole 11 and the second positioning hole 21 by a fastening adjustment member to install the first fixed block 1 above the second fixed block 2. After the first fixed block 1 and the second fixed block 2 are installed, the first receiving groove 13 and the second receiving groove 23 cooperate with each other to form a target receiving groove, and the target receiving groove is used to install a target laser crystal. The distance between the bottom of the first receiving groove 13 and the bottom of the second receiving groove 23 is adjusted based on the fastening adjustment member. Therefore, after the adjustable laser crystal water-cooled heat sink device 6 of the present application is applied to the optical path system, the fastening adjustment member can be adjusted to achieve the distance between the two opposite groove bottoms on the two fixed blocks, thereby achieving the adjustment of the extrusion force on the target laser crystal, so that the state of the laser crystal in the heat sink device is neither too tight nor too loose, and the target laser crystal is adjusted to a fastened state with better beam quality output, so as to achieve the uniformity of the distribution of the interference fringes of the output laser beam and improve the beam quality of the laser output laser. The problem of reduced output laser beam quality and poor laser stability caused by excessive extrusion and deformation of the crystal in the heat sink in the prior art is solved.

[0042] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. An adjustable laser crystal water-cooled heat sink device, characterized in that: The device comprises a first fixed block (1) and a second fixed block (2); the first fixed block (1) is provided with a first water cooling pipeline channel (12), a first receiving groove (13) and a plurality of first positioning holes (11); the second fixed block (2) is provided with a second water cooling pipeline channel (22), a second receiving groove (23) and a plurality of second positioning holes (21) which are matched one-to-one with the first positioning holes (11); the first fixed block (1) is connected with the first positioning hole (11) and the second positioning hole (21) by a fastening adjustment member so as to install the first fixed block (1) above the second fixed block (2); after the first fixed block (1) and the second fixed block (2) are installed, the first receiving groove (13) and the second receiving groove (23) cooperate with each other to form a target receiving groove, the target receiving groove is used to install a target laser crystal; the distance between the groove bottom of the first receiving groove (13) and the groove bottom of the second receiving groove (23) is adjusted based on the fastening adjustment member.

2. The adjustable laser crystal water-cooled heat sink device according to claim 1, characterized in that: The plurality of first positioning holes (11) include at least two groups symmetrically arranged on both sides of the first receiving groove (13), each group including at least one first positioning hole (11), and the plurality of second positioning holes (21) include at least two groups symmetrically arranged on both sides of the second receiving groove (23), each group including at least one second positioning hole (21).

3. The adjustable laser crystal water-cooled heat sink device according to claim 1 or 2, characterized in that: The first accommodating groove (13) is constructed as a triangular structure, the second accommodating groove (23) is constructed as a triangular structure, and the target accommodating groove is constructed as a rhombus structure. The first accommodating groove (13) comprises a first groove bottom, on which a first arc-shaped groove (14) is formed, and the second accommodating groove (23) comprises a second groove bottom, on which a second arc-shaped groove (24) is formed.

4. The adjustable laser crystal water-cooled heat sink device according to claim 3, characterized in that: The first accommodating groove (13) further comprises a first groove wall (15), the first groove wall (15) transitioning with the bottom surface of the first fixing block (1) in a circular arc, and the second accommodating groove (23) further comprises a second groove wall (25), the second groove wall (25) transitioning with the top surface of the second fixing block (2) in a circular arc.

5. The adjustable laser crystal water-cooled heat sink device according to claim 1 or 2, characterized in that: The first accommodating groove (13) is configured as a rectangular structure, the second accommodating groove (23) is configured as a rectangular structure, and the target accommodating groove is configured as a rectangular structure.

6. The adjustable laser crystal water-cooled heat sink device according to claim 1, characterized in that: A mounting plate (3) is also extended from the second fixing block (2), and the second fixing block (2) is mounted on the adjustment seat via the mounting plate (3).

7. The adjustable laser crystal water-cooled heat sink device according to claim 6, characterized in that: The mounting plate (3) is provided with a mounting groove (31), and the position of the second fixing block (2) on the adjustment seat is adjustable based on the mounting groove (31).

8. A regulating system, characterized in that: The system comprises a laser emitter (4), a first beam splitter prism (5), a second beam splitter prism (9), a first reflector (7), a second reflector (8), an observation plate (10), and an adjustable laser crystal water-cooled heat sink device (6) according to any one of claims 1 to 7, wherein the laser emitter (4), the first beam splitter prism (5), the laser crystal water-cooled heat sink device, and the first reflector (7) are arranged in parallel in sequence, the second reflector (8) is arranged below the first beam splitter prism (5), the second beam splitter prism (9) is arranged below the first reflector (7), the second beam splitter prism (9) is used for coherently combining and then reflecting a first light beam reflected by the first reflector (7) and a second light beam reflected by the second reflector (8), and the observation plate (10) is used for receiving the combined light beam transmitted by the second beam splitter prism (9) and displaying interference fringes of the combined light beam.

9. The regulating system according to claim 8, characterized in that The first beam splitter prism (5) and the second beam splitter prism (9) are both BS beam splitter prisms, and the BS beam splitter prisms do not change the polarization state of the light beam.

10. The regulating system according to claim 8, characterized in that The laser emitter (4) is a helium-neon laser.

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