Compact solid laser

Abstract

The utility model relates to a compact solid laser, belongs to the field of lasers, and aims to solve the problems of low utilization rate of internal space and inconvenience in installation of the conventional solid laser. In the application, the base is provided with a first fixing part and a second fixing part, and the first fixing part and the second fixing part are arranged at an interval; the light-emitting assembly is installed on the first fixing part. The light emitting assembly comprises a Q-switched crystal and a working crystal, the light emitting assembly is installed on the second fixing part, and the Q-switched crystal and the working crystal are located on the two sides of the second fixing part respectively; the output mirror assembly is located at one end of the containing cavity and used for emitting laser emitted by the light emitting assembly out of a lens of the output mirror assembly after passing through the light emitting assembly. The heat dissipation assembly is arranged at the other end of the containing cavity. The light-emitting component is mounted on the first fixing part of the base, and the Q-switched crystal and the working crystal are respectively positioned on two sides of the second fixing part, so that the internal space utilization rate is improved, subsequent assembly with other parts is facilitated, and the assembly efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of lasers, and in particular to a compact solid-state laser. Background Art

[0002] In recent years, the application of solid-state lasers has become more and more extensive. They use solid laser materials as working materials, evenly mix a small amount of activated ions in crystals or glass as matrix materials, use light as the excitation source, and then amplify the light back and forth through an optical resonant cavity to finally achieve laser output. In terms of application scenarios, solid-state lasers have unique advantages in marking objects.

[0003] However, most of the solid-state lasers currently on the market have complex structures, low internal space utilization, and are inconvenient to install. Utility Model Content

[0004] The purpose of the embodiments of the present application is to provide a compact solid-state laser to solve the problems of low internal space utilization and inconvenient installation of existing solid-state lasers.

[0005] In order to solve the above problems, the present application adopts the following technical solutions:

[0006] The present application provides a compact solid-state laser, comprising:

[0007] A housing having a receiving cavity;

[0008] A base is located in the accommodating cavity, and the base is provided with a first fixing portion and a second fixing portion, and the first fixing portion and the second fixing portion are arranged in an interval shape;

[0009] A light emitting component, used for emitting laser, wherein the light emitting component is mounted on the first fixing portion;

[0010] A light-emitting component, comprising a Q-switching crystal and a working crystal, wherein the light-emitting component is mounted on the second fixing portion, and the Q-switching crystal and the working crystal are respectively located on two sides of the second fixing portion;

[0011] an output mirror assembly, located at one end of the accommodating cavity, and used for emitting the laser light emitted by the light emitting assembly from the lens of the output mirror assembly after passing through the light emitting assembly; and

[0012] The heat dissipation component is arranged at the other end of the accommodating cavity.

[0013] By adopting the above technical solution, the light emitting component is installed on the first fixed part of the base, the Q-switched crystal and the working crystal are respectively located on both sides of the second fixed part, and the light emitting component is installed on the second fixed part of the base, so that the structure between the light emitting component, the light emitting component and the base is compact, and the internal space utilization rate is improved. At the same time, when assembling the solid laser, the light emitting component and the light emitting component can be first installed on the base to form a whole, and the corresponding assembly operation is performed on the whole during subsequent assembly, so as to facilitate the subsequent assembly with other components and improve the assembly efficiency.

[0014] Optionally, the light-emitting component includes a light-emitting component, a mounting block and a fixing component, the mounting block has a first mounting hole and a second mounting hole, the first fixing portion is provided with a first fixing hole adapted to the first mounting hole, the fixing component passes through the first mounting hole and the first fixing hole, and the second mounting hole is used to install the light-emitting component.

[0015] By adopting the above technical solution, the fixing piece passes through the first mounting hole of the mounting block and the first fixing hole of the first fixing part, so that the light-emitting component can be installed on the base, and the light-emitting component is fixed to the second mounting hole of the mounting block, thereby improving the assembly or disassembly efficiency between the light-emitting component and the base.

[0016] Optionally, the first mounting hole and the second mounting hole are respectively located on two adjacent side surfaces of the mounting block.

[0017] By adopting the above technical solution, the utilization efficiency of the mounting block can be improved. Since the first mounting hole and the second mounting hole are respectively located on two adjacent side surfaces of the mounting block, the space utilization rate is improved when assembling the light-emitting component, the mounting block and the fixing component, the assembly efficiency is improved, and the risk of mutual influence during assembly is reduced.

[0018] Optionally, the light-emitting component further comprises a crystal holder provided with a waist hole, and the crystal holder provided with a waist hole is used to mount the working crystal on the second fixing portion.

[0019] By adopting the above technical solution, the crystal support with a waist hole can mount the working crystal on the second fixing part of the base, and the waist hole of the crystal support can properly adjust the position of the working crystal, which is convenient for adjusting the output of the laser.

[0020] Optionally, the second fixing portion is provided with a receiving groove, and the Q-switched crystal is provided with a protruding portion, and the protruding portion is adapted to the receiving groove.

[0021] By adopting the above technical solution, the receiving groove of the second fixing part accommodates the protruding part of the Q-switching crystal, which facilitates the positioning of the second fixing part and the Q-switching crystal, improves the assembly efficiency between the second fixing part and the Q-switching crystal, and at the same time, reduces the occupied space.

[0022] Optionally, the protrusion is hemispherical.

[0023] Through the hemispherical protrusion, the Q-switched crystal can adjust the position of the hemispherical protrusion to improve the laser transmission efficiency and accuracy.

[0024] Optionally, the Q-switched crystal is further provided with a plurality of adjustment holes, and the adjustment holes are located on the peripheral side of the protrusion.

[0025] By adopting the above technical solution, the Q-switched crystal can adjust the position of the hemispherical protrusion to improve the laser transmission efficiency and accuracy.

[0026] Optionally, the shell is provided with an abutting portion, and the base is provided with a stopping portion, and the stopping portion abuts against the abutting portion.

[0027] By adopting the above technical solution, the stopper portion abuts against the abutting portion, thereby improving the assembly efficiency of the shell and the base.

[0028] Optionally, the compact solid-state laser includes a focusing rod, and the housing is provided with an avoidance groove, so that the focusing rod can rotate into the avoidance groove after focusing.

[0029] By adopting the above technical solution, the focus lever can adjust the focus operation of the laser and improve the focus efficiency. After focusing, the focus lever rotates into the avoidance groove, thereby reducing the occupied space and improving the space utilization of the laser.

[0030] Optionally, the compact solid-state laser further includes an indicator light, which is used to indicate a working state of the light-emitting component.

[0031] By adopting the above technical solution, the indicator light indicates the working state of the light-emitting component, thereby representing the working condition of the laser.

[0032] In summary, the present application includes at least one of the following beneficial technical effects:

[0033] 1. The light-emitting component is installed on the first fixed part of the base, and the light-emitting component is installed on the second fixed part of the base. The first fixed part and the second fixed part are arranged in an interval shape, and the Q-switched crystal and the working crystal are respectively located on both sides of the second fixed part, so that the structure between the Q-switched crystal and the working crystal and the second fixed part of the base is compact, and the internal space utilization rate is improved. When assembling or disassembling the solid-state laser, the light-emitting component and the light-emitting component on the base can be operated as a whole to improve the operating efficiency.

[0034] 2. When the Q-switching crystal is working, the receiving groove of the second fixing part receives the Q-switching crystal, and the protruding part is positioned with the receiving groove, thereby reducing the occupied space, facilitating the positioning and installation between the second fixing part and the Q-switching crystal, and adjusting the position of the Q-switching crystal. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 A front view of a compact laser provided by an embodiment of the present application, wherein the housing is hidden;

[0036] Figure 2 A schematic diagram of the structure of a compact laser provided in an embodiment of the present application;

[0037] Figure 3 for Figure 2 A schematic diagram of the structure of a compact laser from another perspective, in which the outer cover is hidden;

[0038] Figure 4 A schematic diagram of the structure of a base and a heat dissipation assembly provided in an embodiment of the present application;

[0039] Figure 5 for Figure 1 Schematic diagram of the structure of a medium-compact laser; and

[0040] Figure 6 A schematic diagram of the structure of a shell provided in an embodiment of the present application.

[0041] Description of reference numerals:

[0042] 1. Shell; 11. Accommodating chamber; 12. Abutting portion; 13. Avoidance groove;

[0043] 2. Base; 21. First fixing portion; 211. First fixing hole; 22. Second fixing portion; 221. Accommodating groove; 222. Second fixing hole; 23. Stopper;

[0044] 3. Light-emitting assembly; 31. Light-emitting member; 32. Mounting block; 321. First mounting hole; 322. Second mounting hole; 33. Fixing member;

[0045] 4. Light-emitting component; 41. Q-switching crystal; 411. protrusion; 412. adjustment hole; 42. working crystal; 43. crystal support; 431. waist hole;

[0046] 5. output mirror assembly; 51. lens; 52. lens holder;

[0047] 6. Heat dissipation assembly; 61. Cooling fan; 62. Protective plate; 7. Focus lever; 8. Indicator light; 9. Outer cover; 10. Adjustment block. DETAILED DESCRIPTION

[0048] The specific implementation methods of the present application are described in detail below with reference to the accompanying drawings.

[0049] It should be noted that, in the absence of conflict, the embodiments and technical features in the embodiments of the present application can be combined with each other, and the detailed description in the specific implementation method should be understood as an explanation of the purpose of the present application and should not be regarded as an improper limitation on the present application.

[0050] It should be understood that the orientation or position relationship is based on the orientation or position relationship shown in the drawings. These orientation terms are only for the convenience of describing the present application 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, and therefore cannot be understood as limiting the present application.

[0051] Solid-state laser is a laser that uses solid laser material as working material. Due to its advantages of high efficiency, good mode matching and wavelength matching, it has become one of the key development directions of laser science. Solid-state laser includes a shell, a pump source, a resonant cavity and a working medium. The pump source, the resonant cavity and the working medium are all located in the shell, and the pump source is installed in the resonant cavity. The resonant cavity structure mainly includes a mirror frame seat, a mirror frame, a total reflective mirror lens and an output mirror lens, and the working material is placed between the two mirrors. The formation of laser mainly requires the adjustment of the total reflective mirror and the output mirror lens. The resonant cavity is used to provide optical feedback capability to form a continuous oscillation of stimulated radiation, so that the light beam is continuously enhanced, while limiting the direction and frequency of the light beam, so that the output light beam has excellent directionality and monochromaticity. At present, in many cases, most solid-state lasers have complex structures, low internal space utilization, and inconvenient installation.

[0052] In view of this, the present application embodiment provides a compact solid-state laser, such as Figure 1 As shown, Figure 1 It is a front view of a compact laser, in which the housing 1 is hidden. The compact solid-state laser includes a housing 1, a base 2, a light-emitting component 3, a light-emitting component 4, an output mirror component 5 and a heat dissipation component 6. The housing 1 is provided with a housing cavity 11; the base 2 is located in the housing cavity 11, and the base 2 is provided with a first fixing portion 21 and a second fixing portion 22, and the first fixing portion 21 and the second fixing portion 22 are arranged in an interval shape. The light-emitting component 3 is used to emit laser light, and the light-emitting component 3 is installed on the first fixing portion 21; the light-emitting component 4 includes a Q-switched crystal 41 and a working crystal 42, and the light-emitting component 4 is installed on the second fixing portion 22, and the Q-switched crystal 41 and the working crystal 42 are respectively located on both sides of the second fixing portion 22. The output mirror component 5 is located at one end of the housing cavity 11, and the output mirror component 5 is used to emit the laser light emitted by the light-emitting component 3 from the lens 51 of the output mirror component 5 after passing through the light-emitting component 4; the heat dissipation component 6 is arranged at the other end of the housing cavity 11, and the heat dissipation component 6 is used to dissipate heat for the compact solid-state laser.

[0053] Figure 2 A schematic diagram of the structure of a compact laser provided in an embodiment of the present application is shown in FIG. Figure 3 for Figure 2 A schematic diagram of the structure of a compact laser from another perspective, wherein the cover 9 is hidden, specifically, as shown in FIG. Figure 2 and Figure 3 As shown, the compact laser includes a housing 1, a base 2, a light emitting component 3, a light emitting component 4, an output mirror component 5, a heat dissipation component 6, a focusing rod 7, an indicator light 8, an outer cover 9 and an adjustment block 10, wherein the output mirror component 5 includes a lens 51 and a lens support 52, the lens 51 is mounted on the lens support 52, and the laser emitted by the light emitting component 3 passes through the lens 51 of the output mirror component 5 to perform relevant laser processing on the target. The outer cover 9 covers the housing 1, the base 2 and the heat dissipation component 6 inside, thereby protecting them and reducing the risk of damage. The indicator light 8 is used to indicate the working state of the light emitting component 3, thereby characterizing the working condition of the compact solid-state laser. The adjustment block 10 is provided with a knob and a slide groove, and the compact solid-state laser is slidably connected with other components through the adjustment block 10, so as to adjust the position of the solid-state laser according to different laser use requirements, and the focusing rod 7 realizes the focusing of the solid-state laser. The heat dissipation component 6 includes a heat dissipation fan 61 and a protective plate 62, and the protective plate 62 is located at the outermost side, and the heat dissipation fan 61 is protected by the protective plate 62.

[0054] A resonant cavity is provided in the compact laser. The light emitting component 3, the working crystal 42, the Q-switched crystal 41 and the resonant cavity cooperate to emit laser light, which is emitted from the lens 51 of the output mirror component 5. The Q-switched crystal 41 is used as a Q-switch of the solid laser. The working crystal 42 can achieve frequency doubling and gain of light. It is usually a single crystal (single crystal silicon optical material) and is used as a gain medium of the solid laser.

[0055] For example, the light emitting component 3 is a pump source, the pump source emits laser, and the laser passes through the working crystal 42, the working crystal 42, and the Q-switched crystal 41, and then is emitted from the lens 51 of the output mirror component 5 to perform laser engraving on the target material.

[0056] It should be noted that, when assembling the solid laser, the light emitting component 3 and the light emitting component 4 can be first installed on the base 2 to form a whole, and the corresponding assembly operation can be performed on the whole during subsequent assembly, so as to facilitate the subsequent assembly with other components and improve the assembly efficiency. At the same time, since the Q-switched crystal 41 and the working crystal 42 are respectively located on both sides of the second fixing part 22, the light emitting component 4 is installed on the second fixing part 22 of the base 2, and the light emitting component 3 is installed on the first fixing part 21 of the base 2, the structure between the light emitting component 3, the light emitting component 4 and the base 2 is compact, and the internal space utilization rate is improved.

[0057] Figure 4 A schematic diagram of the structure of a base and a heat dissipation assembly provided in an embodiment of the present application. Figure 5 for Figure 1 Schematic diagram of the structure of a medium-compact laser. Figure 4 and Figure 5 As shown, in some embodiments, the light-emitting component 3 includes a light-emitting component 31, a mounting block 32 and a fixing component 33, the mounting block 32 has a first mounting hole 321 and a second mounting hole 322, the first fixing portion 21 is provided with a first fixing hole 211 adapted to the first mounting hole 321, the fixing component 33 passes through the first mounting hole 321 and the first fixing hole 211, and the second mounting hole 322 is used to install the light-emitting component 31.

[0058] Specifically, the fixing member 33 is a bolt, the first fixing hole 211 is a threaded hole, the first mounting hole 321 is a through hole, the bolt passes through the through hole and is connected to the threaded hole of the first fixing portion 21, so that the light-emitting member 31 is fixed on the base 2, improving the loading and unloading efficiency between the light-emitting component 3 and the base 2. For example, the light-emitting member 31 is a light-emitting chip, which is fixed on the mounting block 32 and mounted on the first fixing portion 21 of the base 2 through the mounting block 32.

[0059] In some embodiments, the first mounting hole 321 and the second mounting hole 322 are respectively located on two adjacent side surfaces of the mounting block 32 .

[0060] Specifically, the first mounting hole 321 is located on the top surface, the second mounting hole 322 is located on the side surface, the light emitting member 31 is installed in front of the mounting block 32 through the second mounting hole 322, and the fixing member 33 passes through the first mounting hole 321, so that the light emitting member 31 is fixed on the first fixing portion 21 (see Figure 5 ).

[0061] In some embodiments, the light-emitting component 4 further includes a crystal support 43 having a waist hole 431 , and the crystal support 43 having the waist hole 431 is used to mount the working crystal 42 on the second fixing portion 22 .

[0062] Specifically, the crystal support 43 is provided with a waist hole 431, and the working crystal 42 on the crystal support 43 moves and adjusts its position along with the crystal support 43. For example, the waist hole 431 of the crystal support 43 is fixed at different positions by bolts, so that the position of the working crystal 42 on the crystal support 43 is finely adjusted, thereby better performing laser transmission, improving transmission efficiency, and reducing loss.

[0063] In some embodiments, the second fixing portion 22 is provided with a receiving groove 221 , and the Q-switched crystal 41 is provided with a protrusion 411 , and the protrusion 411 is adapted to the receiving groove 221 .

[0064] Specifically, a receiving groove 221 is provided on a side of the second fixing portion 22 away from the working crystal 42, a through hole is provided at the center of the receiving groove 221, and the Q-switching crystal 41 is provided with a protrusion 411 adapted to the receiving groove 221, and both the receiving groove 221 and the protrusion 411 are curved, and in particular, the protrusion 411 is hemispherical. The receiving groove 221 accommodates the protrusion 411, which is conducive to positioning the second fixing portion 22 and the Q-switching crystal 41, improving the assembly efficiency between the second fixing portion 22 and the Q-switching crystal 41, and at the same time, can also reduce the occupied space.

[0065] In some embodiments, the Q-switched crystal 41 is further provided with a plurality of adjustment holes 412 , and the adjustment holes 412 are located around the protrusion 411 .

[0066] Specifically, the second fixing portion 22 is provided with a plurality of second fixing holes 222, and the Q-switching crystal 41 is also provided with a plurality of adjustment holes 412. The adjustment holes 412 are located on the peripheral side of the protruding portion 411. The adjustment holes 412 and the second fixing holes 222 are arranged in a group. Bolts are inserted into the grouped adjustment holes 412 and the second fixing holes 222 to fix the Q-switching crystal 41 on the second fixing portion 22.

[0067] It should be noted that the receiving groove 221 is matched with the protrusion 411, and the protrusion 411 can rotate in the receiving groove 221. After the position and posture of the Q-switched crystal 41 are determined, the bolts are tightened to adjust the Q-switched crystal 41. At the same time, the Q-switched crystal 41 is fixed on the second fixing part 22, thereby improving the laser transmission efficiency and accuracy.

[0068] For example, the protrusion 411 is hemispherical, and the contour of the receiving groove 221 is adapted to the hemispherical protrusion 411. The lengths of the above-mentioned multiple bolts are adjusted so that the Q-switched crystal 41 can rotate, and the contact position between the protrusion 411 and the receiving groove 221 is adjusted, thereby achieving the adjustment of the position and posture of the Q-switched crystal 41.

[0069] Figure 6 A schematic diagram of the structure of a housing provided in an embodiment of the present application is shown in FIG. Figure 6 and Figure 3 As shown, in some embodiments, the housing 1 is provided with an abutting portion 12 , and the base 2 is provided with a stopping portion 23 , and the stopping portion 23 abuts against the abutting portion 12 .

[0070] Specifically, the abutting portion 12 of the housing 1 is in a step shape, and the stopper 23 of the base 2 presents a step adapted thereto, and after the stopper 23 abuts against the abutting portion 12, the housing 1 is flush with the bottom surface of the base 2. The abutment of the stopper 23 against the abutting portion 12 facilitates rapid positioning and assembly between the housing 1 and the base 2, improves the assembly efficiency of the housing 1 and the base 2, and also makes the solid-state laser structure compact.

[0071] In some embodiments, Figure 2 As shown, the compact solid-state laser comprises a focusing rod 7 , and the housing 1 is provided with an avoidance groove 13 , so that the focusing rod 7 can rotate into the avoidance groove 13 after focusing.

[0072] Specifically, the housing 1 is provided with an escape groove 13, and the focus rod 7 is rotatably connected to the housing 1. After focusing, the focus rod 7 rotates into the escape groove 13. When the solid-state laser needs to be focused again, the focus rod 7 is pulled out from the escape groove 13, and the focusing operation is performed again through the focus rod 7. Since the focus rod 7 is provided, the focusing efficiency is improved. At the same time, the housing 1 is provided with the escape groove 13, and the focus rod 7 rotates into the escape groove 13 after focusing, thereby reducing the occupied space and improving the space utilization rate of the solid-state laser.

[0073] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit the same. Although the present application has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to replace some of the technical features therein by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions claimed to be protected by the present application.

Claims

1. A compact solid-state laser, characterized in that: include: A housing having a receiving cavity; A base is located in the accommodating cavity, and the base is provided with a first fixing portion and a second fixing portion, and the first fixing portion and the second fixing portion are arranged in an interval shape; A light emitting component, used for emitting laser, wherein the light emitting component is mounted on the first fixing portion; A light-emitting component, comprising a Q-switching crystal and a working crystal, wherein the light-emitting component is mounted on the second fixing portion, and the Q-switching crystal and the working crystal are respectively located on two sides of the second fixing portion; an output mirror assembly, located at one end of the accommodating cavity, and used for emitting the laser light emitted by the light emitting assembly from the lens of the output mirror assembly after passing through the light emitting assembly; and The heat dissipation component is arranged at the other end of the accommodating cavity.

2. The compact solid-state laser according to claim 1, characterized in that: The light-emitting component includes a light-emitting component, a mounting block and a fixing component, the mounting block has a first mounting hole and a second mounting hole, the first fixing portion is provided with a first fixing hole adapted to the first mounting hole, the fixing component passes through the first mounting hole and the first fixing hole, and the second mounting hole is used to install the light-emitting component.

3. The compact solid-state laser according to claim 2, characterized in that: The first mounting hole and the second mounting hole are respectively located on two adjacent side surfaces of the mounting block.

4. The compact solid-state laser according to claim 1, characterized in that: The light-emitting component further comprises a crystal support provided with a waist hole, and the crystal support provided with a waist hole is used to mount the working crystal on the second fixing part.

5. The compact solid-state laser according to claim 1, characterized in that: The second fixing portion is provided with a receiving groove, and the Q-switched crystal is provided with a protruding portion, and the protruding portion is adapted to the receiving groove.

6. The compact solid-state laser according to claim 5, characterized in that The protrusion is hemispherical.

7. The compact solid-state laser according to claim 5, characterized in that: The Q-switched crystal is further provided with a plurality of adjustment holes, and the adjustment holes are located on the peripheral side of the protrusion.

8. The compact solid-state laser according to claim 1, characterized in that: The shell is provided with an abutting portion, and the base is provided with a stopping portion, and the stopping portion abuts against the abutting portion.

9. The compact solid-state laser according to claim 1, characterized in that: The compact solid-state laser comprises a focus rod, and the housing is provided with an avoidance groove, so that the focus rod can rotate into the avoidance groove after focusing.

10. The compact solid-state laser according to any one of claims 1 to 9, characterized in that: The compact solid-state laser further comprises an indicator light, which is used to indicate the working state of the light-emitting component.

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