Laser with adjustable wave plate and non-adjustable galvanometer

Abstract

The utility model provides a laser with an adjustable wave plate and a non-adjustable galvanometer, which comprises a resonant cavity assembly and an integrated mounting bracket, the resonant cavity assembly comprises a wave plate, a polaroid and a DKDP crystal, and the integrated mounting bracket comprises a bracket main body, a wave plate mounting bracket, a DKDP crystal mounting bracket and a wave plate locking device. The wave plate mounting bracket is arranged in the bracket main body and is connected with the bracket main body; the DKDP crystal is connected with the DKDP crystal mounting bracket, and the DKDP crystal mounting bracket is arranged in the bracket main body; the polaroid is connected with the support main body, and the DKDP crystal is arranged between the polaroid and the wave plate; the wave plate is connected with the wave plate mounting bracket, the wave plate mounting bracket is arranged in the bracket main body, the wave plate mounting bracket is connected with the bracket main body, and the wave plate mounting bracket can rotate in the bracket main body; and the wave plate locking device locks the wave plate mounting bracket on the bracket main body, so that the wave plate mounting bracket cannot rotate in the bracket main body.

Description

Technical Field

[0001] The utility model relates to the field of lasers, in particular to a laser with an adjustable wave plate and an unadjustable galvanometer. Background Art

[0002] The DKDP electro-optical Q-switching switch is widely used in the laser field, especially in solid-state lasers, due to its excellent electro-optical modulation characteristics. It can achieve nanosecond-level modulation. When modulating under pressure, the DKDP switch needs to work together with the polarizer and wave plate to achieve the Q-switching function. In current lasers, the three are three separate accessories. Each accessory needs to be installed separately, and each component needs to be adjusted after installation to achieve the optimal performance of the laser. The adjustment process is long, and the matching of the three may not necessarily be optimal. Some designs combine these three together, which only serves as a combination of accessories, but the three components must be assembled at the same time to be adjusted. The adjustment after the combination is difficult, and the results of the three adjustments will affect each other, affecting the function of the DKDP Q-switching switch and the efficiency of the laser. Summary of the invention

[0003] In order to overcome the shortcomings of the prior art, the utility model provides a laser with an adjustable wave plate and an unadjustable galvanometer, comprising:

[0004] A resonant cavity component and an integrated mounting bracket; the resonant cavity component includes a wave plate, a polarizing plate and a DKDP crystal; the integrated mounting bracket includes a bracket body, a wave plate mounting bracket, a DKDP crystal mounting bracket and a wave plate locking device; the wave plate mounting bracket is arranged in the bracket body, and the wave plate mounting bracket is connected to the bracket body; the DKDP crystal is connected to the DKDP crystal mounting bracket, and the DKDP crystal mounting bracket is arranged in the bracket body; the polarizing plate is connected to the bracket body, and the DKDP crystal is arranged between the polarizing plate and the wave plate; the wave plate is connected to the wave plate mounting bracket, and the wave plate mounting bracket is arranged in the bracket body, and the wave plate mounting bracket is connected to the bracket body, and the wave plate mounting bracket can rotate in the bracket body; the wave plate locking device locks the wave plate mounting bracket to the bracket body so that the wave plate mounting bracket cannot rotate in the bracket body; when the locking of the wave plate locking device is released, the wave plate mounting bracket can rotate in the bracket body to drive the wave plate to rotate and adjust.

[0005] As an improvement of the present invention, the side wall of the wave plate mounting bracket is provided with a first groove, and the wave plate locking device includes a first locking screw and a second threaded hole provided on the side wall of the bracket body, and the first locking screw passes through the second screw hole and is pressed against the inner wall of the first groove to lock the wave plate mounting bracket to the bracket body so that the wave plate mounting bracket cannot rotate in the bracket body.

[0006] As an improvement of the present utility model, a wave plate mounting hole is provided at the rear end of the bracket body, and the wave plate mounting bracket is arranged in the wave plate mounting hole.

[0007] As an improvement of the present invention, the wave plate mounting bracket is detachably arranged in the wave plate mounting hole.

[0008] As an improvement of the present utility model, the integrated mounting bracket also includes a first adjusting screw, a second adjusting screw and a third adjusting screw. There is a gap between the DKDP crystal mounting bracket and the bracket body, and the DKDP crystal mounting bracket can be rotated in the gap to adjust the inclination angle; the upper side wall of the bracket body also has a fifth threaded hole and a sixth threaded hole, and the lower side wall of the bracket body is provided with an eighth threaded hole. The first adjusting screw passes through the fifth threaded hole and is pressed against the front end of the upper side of the DKDP crystal mounting bracket, the second adjusting screw passes through the sixth threaded hole and is pressed against the rear end of the upper side of the DKDP crystal mounting bracket, and the third adjusting screw passes through the eighth threaded hole and is pressed against the lower side of the DKDP crystal mounting bracket to fix the inclination angle of the DKDP crystal mounting bracket.

[0009] As an improvement of the present invention, the integrated mounting bracket also includes a mounting block, the side wall of the bracket body also has a mounting groove, the side wall of the DKDP crystal mounting bracket has two limiting bosses, the mounting block is connected to the mounting groove, and the mounting block is located between the two limiting bosses.

[0010] As an improvement of the utility model, a polarizing plate installation groove is provided at the front end of the bracket body, and the polarizing plate is arranged in the polarizing plate installation groove.

[0011] As an improvement of the present invention, the polarizer is detachably arranged in the polarizer installation groove, and the position of the polarizer is not adjustable.

[0012] As an improvement of the present invention, the bracket body has an inclined end surface, and the polarizer mounting groove is arranged on the inclined end surface.

[0013] As an improvement of the present utility model, the resonant cavity assembly further includes a working material module.

[0014] The beneficial effects of the utility model are as follows: the utility model provides a laser with an adjustable wave plate and an unadjustable galvanometer, which comprises a resonant cavity component and an integrated mounting bracket, wherein the resonant cavity component comprises a wave plate, a polarizer and a DKDP crystal, and the integrated mounting bracket comprises a bracket body, a wave plate mounting bracket, a DKDP crystal mounting bracket and a wave plate locking device, wherein the wave plate mounting bracket is arranged in the bracket body, and the wave plate mounting bracket is connected to the bracket body; the DKDP crystal is connected to the DKDP crystal mounting bracket, and the DKDP crystal mounting bracket is arranged in the bracket body; the polarizer is connected to the bracket body, and the DKDP crystal is arranged between the polarizer and the wave plate; the wave plate is connected to the wave plate mounting bracket, and the wave plate mounting bracket is connected to the wave plate mounting bracket. The wave plate mounting bracket is mounted in the bracket body, connected to the bracket body, and the wave plate mounting bracket can rotate in the bracket body; the wave plate locking device locks the wave plate mounting bracket to the bracket body, so that the wave plate mounting bracket cannot rotate in the bracket body; when the locking of the wave plate locking device is released, the wave plate mounting bracket can rotate in the bracket body to drive the wave plate to rotate and adjust, so that the user can release the locking of the locking device to rotate and adjust the wave plate, so that the user can make the polarizer and the wave plate work together to realize the Q modulation function of the DKDP crystal when the pressure is modulated; after the adjustment is completed, the wave plate can be fixed by locking the position of the wave plate through the locking device, so that the DKDP crystal can work stably. . BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. The drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is an exploded view of the utility model;

[0019] Figure 3 yes Figure 2 A magnified image of point A;

[0020] Figure 4 yes Figure 2 The enlarged view of point B;

[0021] Figure 5 is another exploded view of the present utility model;

[0022] Figure 6 yes Figure 5 Enlarged view of point C;

[0023] Figure 7 is a cross-sectional view cut along the shell;

[0024] Figure 8 yes Figure 7 The enlarged view of point D; DETAILED DESCRIPTION

[0025] Embodiment 1:

[0026] Reference Figures 1 to 8 , a portable Q-switched laser, comprising:

[0027] The shell 1 has a first accommodating cavity 11 formed around the side wall of the shell 1, a first end cover 12 is provided at the front end of the shell 1, and a second end cover 13 is provided at the rear end of the shell 1; a Q-switching optical path system 2 and a water cooling system 3 are provided in the first accommodating cavity 11, and the Q-switching optical path system 2 includes a resonant cavity component 21 and an output mirror 22 and a total reflection mirror 23 located at both ends of the resonant cavity component 21, the output mirror 22 is connected to the first end cover 12, and the total reflection mirror 23 is connected to the second end cover 13; a water pipe fixing hole 131 is also provided on the second end cover 13, and the water cooling system 3 is connected to the water pipe fixing hole 131 through a water pipe 313; the water cooling system 3 has a water cooling box 31, the water cooling box 31 is connected to the side wall of the shell 1, a xenon lamp installation front cover 33 for installing a front xenon lamp 32 is provided at the front end of the water cooling box 31, and a xenon lamp installation rear cover 35 for installing a rear xenon lamp 34 is provided at the rear end of the water cooling box 31. Through the above structure, since it includes a shell 1, the side wall of the shell 1 is surrounded by a first accommodating cavity 11, the front end of the shell 1 is provided with a first end cover 12, and the rear end of the shell 1 is provided with a second end cover 13; the first accommodating cavity 11 is provided with a Q-switched optical path system 2 and a water cooling system 3, the Q-switched optical path system 2 includes a resonant cavity component 21 and an output mirror 22 and a total reflection mirror 23 located at both ends of the resonant cavity component 21, the output mirror 22 is connected to the first end cover 12, and the total reflection mirror 23 is connected to the second end cover 13; the second end cover 13 also begins to have a water pipe fixing hole 131, and the water cooling system 3 is connected to the water pipe fixing hole 131 through a water pipe 313 Connection; the water cooling system 3 has a water cooling box 31, the water cooling box 31 is connected to the side wall of the shell 1, the front end of the water cooling box 31 is provided with a xenon lamp installation front cover 33 for installing the front xenon lamp 32, and the rear end of the water cooling box 31 is provided with a xenon lamp installation rear cover 35 for installing the rear xenon lamp 34, which effectively completes the reasonable arrangement of various structures of the laser, realizes the miniaturization, lightweight and integration of the actively Q-switched laser structure, effectively solves the operator's use and transportation problems, is easy for the operator to hold and use, and does not affect the output energy. The output energy is consistent with the traditional Q-switched laser, and can meet further miniaturization and integration iterations. Furthermore, since the water cooling system 3 is located in the first accommodating cavity 11 of the shell 1, and the front end of the water cooling box 31 is provided with a xenon lamp installation front cover 33 for installing the front xenon lamp 32, and the rear end of the water cooling box 31 is provided with a xenon lamp installation rear cover 35 for installing the rear xenon lamp 34, the front xenon lamp 32 and the rear xenon lamp 34 can be installed in the first accommodating cavity 11, which can effectively protect the front xenon lamp 32 and the rear xenon lamp 34 from being damaged, especially preventing the front xenon lamp 32 and the rear xenon lamp 34 from being damaged when the laser falls, thereby greatly improving the anti-fall performance and service life of the laser.

[0028] In this embodiment, the xenon lamp installation front cover 33 is provided with a front xenon lamp fixing hole 331, and the xenon lamp installation rear cover 35 is provided with a rear xenon lamp fixing hole 341. Among them, the shell 1 includes an upper shell 1111 and a lower shell 1112, the upper shell 1111 is connected to the lower shell 1112, and a first accommodating cavity 11 is formed between the upper shell 1111 and the lower shell 1112. Specifically, it also includes an integrated mounting bracket 4, the resonant cavity assembly 21 is connected to the integrated mounting bracket 4, and the upper shell 1111 is detachably connected to the lower shell 1112. Specifically, the first end cover 12 is detachably connected to the shell 1, and the second end cover 13 is detachably connected to the shell 1. Further, the first end cover 12 is provided with an output mirror mounting hole 121, and the second end cover 13 is provided with a total reflection mirror mounting hole 132, the output mirror 22 is installed in the output mirror mounting hole 121, and the total reflection mirror 23 is installed in the total reflection mirror mounting hole 132. Through the above structure, the front xenon lamp 32 can be installed in the front xenon lamp fixing hole 331, and the rear xenon lamp 34 can be installed in the rear xenon lamp fixing hole 341. The light emitted by the front xenon lamp 32 and the rear xenon lamp 34 is fed back by the resonant cavity assembly 21 and the total reflection mirror 23 to generate laser which is transmitted through the output mirror 22.

[0029] In this embodiment, the resonant cavity component 21 includes a wave plate 211, a polarizer 212 and a DKDP crystal 213. The integrated mounting bracket 4 includes a bracket body 41, a wave plate mounting bracket 42, a DKDP crystal mounting bracket 43 and a wave plate locking device 44. The wave plate mounting bracket 42 is arranged in the bracket body 41, and the wave plate mounting bracket 42 is connected to the bracket body 41; the DKDP crystal 213 is connected to the DKDP crystal mounting bracket 43, and the DKDP crystal mounting bracket 43 is arranged in the bracket body 41; the polarizer 212 is connected to the bracket body 41, and the DKDP crystal 213 is arranged between the polarizer 212 and the wave plate 211; the wave plate 211 is connected to the wave plate mounting bracket 42, the wave plate mounting bracket 42 is arranged in the bracket body 41, the wave plate mounting bracket 42 is connected to the bracket body 41, and the wave plate mounting bracket 42 can rotate in the bracket body 41; the wave plate locking device 44 locks the wave plate mounting bracket 42 to the bracket body 41 so that the wave plate mounting bracket 42 cannot rotate in the bracket body 41; when the wave plate locking device 44 is released, the wave plate mounting bracket 42 can rotate in the bracket body 41 to drive the wave plate 211 to rotate and adjust. Through the above structure, since the resonant cavity component 21 includes the wave plate 211, the polarizer 212 and the DKDP crystal 213, the integrated mounting bracket 4 includes the bracket body 41, the wave plate mounting bracket 42, the DKDP crystal mounting bracket 43 and the wave plate locking device 44, the wave plate mounting bracket 42 is arranged in the bracket body 41, and the wave plate mounting bracket 42 is connected to the bracket body 41; the DKDP crystal 213 is connected to the DKDP crystal mounting bracket 43, and the DKDP crystal mounting bracket 43 is arranged in the bracket body 41; the polarizer 212 is connected to the bracket body 41, and the DKDP crystal 213 is arranged between the polarizer 212 and the wave plate 211; the wave plate 211 is connected to the wave plate mounting bracket 42, and the wave plate mounting bracket 42 is arranged in the bracket body 41, and the wave plate mounting bracket 4 2 is connected to the bracket body 41, and the wave plate mounting bracket 42 can rotate in the bracket body 41; the wave plate locking device 44 locks the wave plate mounting bracket 42 to the bracket body 41, so that the wave plate mounting bracket 42 cannot rotate in the bracket body 41; when the locking of the wave plate locking device 44 is released, the wave plate mounting bracket 42 can rotate in the bracket body 41 to drive the wave plate 211 to rotate and adjust, so that the user can release the locking of the locking device to rotate and adjust the wave plate 211, so that the user can make the polarizer 212 and the wave plate 211 work together to realize the Q-switching function of the DKDP crystal 213 when the pressure modulation is applied; after the adjustment is completed, the wave plate 211 can be fixed by locking the position of the wave plate 211 through the locking device, so that the DKDP crystal 213 can work stably.

[0030] In this embodiment, the side wall of the wave plate mounting bracket 42 is provided with a first groove 421, and the wave plate locking device 44 includes a first locking screw 441, a first threaded hole 14 provided on the side wall of the housing 1, and a second threaded hole 411 provided on the side wall of the bracket body 41. The first locking screw 441 passes through the first threaded hole 14 and the second threaded hole and is pressed against the inner wall of the first groove 421 to lock the wave plate mounting bracket 42 to the bracket body 41, so that the wave plate mounting bracket 42 cannot rotate in the bracket body 41. Among them, the rear end of the bracket body 41 is provided with a wave plate mounting hole 412, and the wave plate mounting bracket 42 is arranged in the wave plate mounting hole 412. Specifically, the wave plate mounting bracket 42 is detachably arranged in the wave plate mounting hole 412. Through the above structure, the design is reasonable, the structure is simple, the connection is stable, and the arrangement of the wave plate 211, the wave plate mounting bracket 42, and the wave plate locking device 44 is effectively realized.

[0031] In this embodiment, the integrated mounting bracket 4 also includes a first adjusting screw 45, a second adjusting screw 46 and a third adjusting screw 47. There is a gap 413 between the DKDP crystal mounting bracket 43 and the bracket body 41. The DKDP crystal mounting bracket 43 can be rotated in the gap 413 to adjust the tilt angle; the upper side wall of the shell 1 also has a third threaded hole 15 and a fourth threaded hole 16, the upper side wall of the bracket body 41 also has a fifth threaded hole 414 and a sixth threaded hole 415, and the lower side wall of the bracket body 41 is provided with an eighth threaded hole 416. The first adjusting screw 45 passes through the third threaded hole 15 and the fifth threaded hole 414 in sequence and is pressed against the front end of the upper side of the DKDP crystal mounting bracket 43, the second adjusting screw 46 passes through the fourth threaded hole 16 and the sixth threaded hole 415 in sequence and is pressed against the rear end of the upper side of the DKDP crystal mounting bracket 43, and the third adjusting screw 47 passes through the eighth threaded hole 416 and is pressed against the lower side of the DKDP crystal mounting bracket 43 to fix the tilt angle of the DKDP crystal mounting bracket 43. Through the above structure, the inclination angle of the DKDP crystal mounting bracket 43 can be adjusted and fixed by rotating the first adjusting screw 45 and the second adjusting screw 46 to adjust the inclination angle of the DKDP crystal 213, so that the user can make the polarizer 212 and the wave plate 211 act on the DKDP crystal 213 together during pressure modulation to realize the Q-switching function of the DKDP crystal 213.

[0032] The integrated mounting bracket 4 further includes a mounting block 48, the side wall of the bracket body 41 also has a mounting groove 417, the side wall of the DKDP crystal mounting bracket 43 has two limiting convex columns 431, the mounting block 48 is connected to the mounting groove 417, and the mounting block 48 is located between the two limiting convex columns 431. Specifically, it is characterized in that a polarizer mounting groove 418 is provided at the front end of the bracket body 41, and the polarizer 212 is provided in the polarizer mounting groove 418. Further, the polarizer 212 is detachably provided in the polarizer mounting groove 418, and the position of the polarizer 212 is not adjustable. Further, the bracket body 41 has an inclined end surface 419, and the polarizer mounting groove 418 is provided on the inclined end surface 419. Through the above structure, since the angle of the polarizer 212 is fixed, the user only needs to rotate the wave plate 211 and the tilt angle of the DKDP crystal 213 to make the polarizer 212 and the wave plate 211 act on the DKDP crystal 213 together during pressure modulation, thereby realizing the Q-switching function of the DKDP crystal 213, which is convenient for the user to complete the adjustment work accurately and quickly.

[0033] In this embodiment, the water-cooling box 31 has a water-cooling cavity 311, and the resonant cavity assembly 21 further includes a working substance module 214, and the working substance module 214 is arranged in the water-cooling cavity 311. Among them, the water-cooling box 31 also has a pipe joint 312, one end of the pipe joint 312 is connected to the water-cooling cavity 311, and the other end of the pipe joint 312 is connected to the water pipe fixing hole 131 through the water pipe 313. Through the above structure, the water pipe 313 is connected to the outer layer of the working substance module 214 of the resonant cavity assembly 21 for heat exchange cooling, and then connected to the outside through the water pipe fixing hole 131 for cooling and heat exchange.

[0034] In this embodiment, an indicator light 5 and an indicator light mounting bracket 6 are also included. The indicator light 5 is connected to the indicator light mounting bracket 6, and the indicator light mounting bracket 6 is connected to the side wall of the housing 1 or the second end cover 13. Among them, the indicator light 5 is detachably connected to the indicator light mounting bracket 6. Specifically, the indicator light mounting bracket 6 is detachably connected to the side wall of the housing 1 or the second end cover 13. Further, the indicator light mounting bracket 6 includes a first bracket 61 and a second bracket 62, the first bracket 61 is connected to the second bracket 62, a first light-transmitting hole 611 is provided on the first bracket 61, and a second light-transmitting hole 621 is provided on the second bracket 62. The indicator light 5 is connected to the second bracket 62, and the light-emitting surface of the indicator light 5 is arranged toward the first light-transmitting hole 611 and the second light-transmitting hole 621. Further, an adjusting device 7 is also included, the first bracket 61 and the second bracket 62 are connected through the adjusting device 7, and the adjusting device 7 is used to adjust the angle between the first bracket 61 and the second bracket 62. Further, the adjusting device 7 is an adjusting screw group. Furthermore, the adjusting device 7 includes a fourth adjusting screw 71, a fifth adjusting screw 72, a sixth adjusting screw 73, a seventh adjusting screw 74, an eighth adjusting screw 75 and a ninth adjusting screw 76. The first bracket 61 is provided with a first threaded mounting hole 63, a second threaded mounting hole 64 and a third threaded mounting hole 65. The second bracket 62 is provided with a fourth threaded mounting hole 66, a fifth threaded mounting hole 67, a sixth threaded mounting hole 68, a seventh threaded mounting hole 69, an eighth threaded mounting hole 691 and a ninth threaded mounting hole 692. The first threaded mounting hole 63, the second threaded mounting hole 64 and the third threaded mounting hole 65 are arranged at intervals from each other, the fourth threaded mounting hole 66, the fifth threaded mounting hole 67, the sixth threaded mounting hole 68, the seventh threaded mounting hole 69, the eighth threaded mounting hole 691 and the ninth threaded mounting hole 692 are arranged at intervals from each other, and the fourth adjusting screw 71 is inserted into the The first bracket 61 is connected to the second bracket 62 through the fourth threaded mounting hole 66 and the first threaded mounting hole 63, the fifth adjusting screw 72 is connected to the first bracket 61 and the second bracket 62 through the fifth threaded mounting hole 67 and the second threaded mounting hole 64, the sixth adjusting screw 73 is connected to the first bracket 61 and the second bracket 62 through the sixth threaded mounting hole 68 and the third threaded mounting hole 65, the seventh adjusting screw 74 is passed through the seventh threaded mounting hole 69 on the outside of the second bracket 62, out of the inner side of the second bracket 62 and abuts against the end surface of the first bracket 61, the eighth adjusting screw 75 is passed through the eighth threaded mounting hole 691 on the outside of the second bracket 62, out of the inner side of the second bracket 62 and abuts against the end surface of the first bracket 61, and the ninth adjusting screw 76 is passed through the ninth threaded mounting hole 692 on the outside of the second bracket 62, out of the inner side of the second bracket 62 and abuts against the end surface of the first bracket 61.Further, the second bracket 62 has a first protrusion 622, a second protrusion 623 and a third protrusion 624, the first protrusion 622, the second protrusion 623 and the third protrusion 624 are arranged circumferentially around the second bracket 62, the fourth threaded mounting hole 66 and the seventh threaded mounting hole 69 are arranged on the first protrusion 622, the fifth threaded mounting hole 67 and the eighth threaded mounting hole 691 are arranged on the second protrusion 623, and the sixth threaded mounting hole 68 and the ninth threaded mounting hole 692 are arranged on the third protrusion 624. Through the above structure, since the adjustment device 7 is provided to adjust the angle between the second bracket 62 and the first bracket 61 to adjust the irradiation angle of the indicator light 5, the irradiation angle of the indicator light 5 is adjusted to be consistent with the irradiation angle of the laser, so that the laser has an indication function, which is convenient for the user to point the indication light and the laser to the treatment target surface. Among them, the indicator light 5 can be a red light indicator light 5, and it can also be an indicator light 5 of other colors such as a blue light indicator light 5. Among them, a spring 1113 is provided between the first bracket and the second bracket.

[0035] Embodiment 2:

[0036] refer to Figures 1 to 8 , a laser with adjustable wave plate and non-adjustable galvanometer, comprising:

[0037] The resonant cavity component 21 and the integrated mounting bracket 4; the resonant cavity component 21 includes a wave plate 211, a polarizer 212 and a DKDP crystal 213, the integrated mounting bracket 4 includes a bracket body 41, a wave plate mounting bracket 42, a DKDP crystal mounting bracket 43 and a wave plate locking device 44, the wave plate mounting bracket 42 is arranged in the bracket body 41, and the wave plate mounting bracket 42 is connected to the bracket body 41; the DKDP crystal 213 is connected to the DKDP crystal mounting bracket 43, and the DKDP crystal mounting bracket 43 is arranged in the bracket body 41; the polarizer 212 is connected to the bracket body 41, and the DKDP crystal 213 is connected to the DKDP crystal mounting bracket 43. The KDP crystal 213 is arranged between the polarizer 212 and the wave plate 211; the wave plate 211 is connected to the wave plate mounting bracket 42, the wave plate mounting bracket 42 is arranged in the bracket body 41, the wave plate mounting bracket 42 is connected to the bracket body 41, and the wave plate mounting bracket 42 can rotate in the bracket body 41; the wave plate locking device 44 locks the wave plate mounting bracket 42 to the bracket body 41 so that the wave plate mounting bracket 42 cannot rotate in the bracket body 41; when the wave plate locking device 44 is released, the wave plate mounting bracket 42 can rotate in the bracket body 41 to drive the wave plate 211 to rotate and adjust.

[0038] The side wall of the wave plate mounting bracket 42 is provided with a first groove 421, and the wave plate locking device 44 includes a first locking screw 441 and a second threaded hole 411 provided on the side wall of the bracket body 41. The first locking screw 441 passes through the second screw hole and is pressed against the inner wall of the first groove 421 to lock the wave plate mounting bracket 42 to the bracket body 41, so that the wave plate mounting bracket 42 cannot rotate in the bracket body 41. Specifically, the rear end of the bracket body 41 is provided with a wave plate mounting hole 412, and the wave plate mounting bracket 42 is arranged in the wave plate mounting hole 412. Further, the wave plate mounting bracket 42 is detachably arranged in the wave plate mounting hole 412. Furthermore, the integrated mounting bracket 4 also includes a first adjusting screw 45, a second adjusting screw 46 and a third adjusting screw 47. There is a gap 413 between the DKDP crystal mounting bracket 43 and the bracket body 41. The DKDP crystal mounting bracket 43 can be rotated in the gap 413 to adjust the tilt angle; the upper side wall of the bracket body 41 also has a fifth threaded hole 414 and a sixth threaded hole 415, and the lower side wall of the bracket body 41 is provided with an eighth threaded hole 416. The first adjusting screw 45 passes through the fifth threaded hole 414 and is pressed against the front end of the upper side of the DKDP crystal mounting bracket 43, the second adjusting screw 46 passes through the sixth threaded hole 415 and is pressed against the rear end of the upper side of the DKDP crystal mounting bracket 43, and the third adjusting screw 47 passes through the eighth threaded hole 416 and is pressed against the lower side of the DKDP crystal mounting bracket 43 to fix the tilt angle of the DKDP crystal mounting bracket 43. Furthermore, the integrated mounting bracket 4 further includes a mounting block 48, the side wall of the bracket body 41 further includes a mounting groove 417, the side wall of the DKDP crystal mounting bracket 43 includes two limiting bosses 431, the mounting block 48 is connected to the mounting groove 417, and the mounting block 48 is located between the two limiting bosses 431. Furthermore, a polarizer mounting groove 418 is provided at the front end of the bracket body 41, and the polarizer 212 is provided in the polarizer mounting groove 418. Furthermore, the polarizer 212 is detachably provided in the polarizer mounting groove 418, and the position of the polarizer 212 is not adjustable. Furthermore, the bracket body 41 has an inclined end surface 419, and the polarizer mounting groove 418 is provided on the inclined end surface 419. Furthermore, the resonant cavity assembly 21 further includes a working material module 214.

[0039] Through the above structure, since the resonant cavity component 21 includes the wave plate 211, the polarizer 212 and the DKDP crystal 213, the integrated mounting bracket 4 includes the bracket body 41, the wave plate mounting bracket 42, the DKDP crystal mounting bracket 43 and the wave plate locking device 44, the wave plate mounting bracket 42 is arranged in the bracket body 41, and the wave plate mounting bracket 42 is connected to the bracket body 41; the DKDP crystal 213 is connected to the DKDP crystal mounting bracket 43, and the DKDP crystal mounting bracket 43 is arranged in the bracket body 41; the polarizer 212 is connected to the bracket body 41, and the DKDP crystal 213 is arranged between the polarizer 212 and the wave plate 211; the wave plate 211 is connected to the wave plate mounting bracket 42, and the wave plate mounting bracket 42 is arranged in the bracket body 41, and the wave plate mounting bracket 4 2 is connected to the bracket body 41, and the wave plate mounting bracket 42 can rotate in the bracket body 41; the wave plate locking device 44 locks the wave plate mounting bracket 42 to the bracket body 41, so that the wave plate mounting bracket 42 cannot rotate in the bracket body 41; when the locking of the wave plate locking device 44 is released, the wave plate mounting bracket 42 can rotate in the bracket body 41 to drive the wave plate 211 to rotate and adjust, so that the user can release the locking of the locking device to rotate and adjust the wave plate 211, so that the user can make the polarizer 212 and the wave plate 211 work together to realize the Q-switching function of the DKDP crystal 213 when the pressure modulation is applied; after the adjustment is completed, the wave plate 211 can be fixed by locking the position of the wave plate 211 through the locking device, so that the DKDP crystal 213 can work stably. Furthermore, since the angle of the polarizer 212 is fixed, the user only needs to rotate the wave plate 211 and the tilt angle of the DKDP crystal 213 to make the polarizer 212 and the wave plate 211 act on the DKDP crystal 213 together during pressure modulation, thereby realizing the Q-switching function of the DKDP crystal 213, making it convenient for the user to complete the adjustment work accurately and quickly.

[0040] The above are one or more implementation methods provided in combination with specific content, and it is not intended that the specific implementation of the utility model is limited to these descriptions. Any method, structure, etc. similar to or identical to the method, structure, etc. of the utility model, or any technical deduction or replacement based on the concept of the utility model, shall be deemed to be within the protection scope of the utility model.

Claims

1. A laser with adjustable wave plate and non-adjustable galvanometer, characterized in that: include: A resonant cavity component (21) and an integrated mounting bracket (4); the resonant cavity component (21) comprises a wave plate (211), a polarizing plate (212) and a DKDP crystal (213); the integrated mounting bracket (4) comprises a bracket body (41), a wave plate mounting bracket (42), a DKDP crystal mounting bracket (43) and a wave plate locking device (44); the wave plate mounting bracket (42) is arranged in the bracket body (41), and the wave plate mounting bracket (42) is connected to the bracket body (41); the DKDP crystal (213) is connected to the DKDP crystal mounting bracket (43), and the DKDP crystal mounting bracket (43) is arranged in the bracket body (41); the polarizing plate (212) is connected to the bracket body (41), and the DKDP crystal (213) is connected to the DKDP crystal mounting bracket (43). The body (213) is arranged between the polarizing plate (212) and the wave plate (211); the wave plate (211) is connected to the wave plate mounting bracket (42); the wave plate mounting bracket (42) is arranged in the bracket body (41); the wave plate mounting bracket (42) is connected to the bracket body (41), and the wave plate mounting bracket (42) can rotate in the bracket body (41); the wave plate locking device (44) locks the wave plate mounting bracket (42) to the bracket body (41) so that the wave plate mounting bracket (42) cannot rotate in the bracket body (41); when the locking of the wave plate locking device (44) is released, the wave plate mounting bracket (42) can rotate in the bracket body (41) to drive the wave plate (211) to rotate and adjust.

2. The laser with adjustable wave plate and non-adjustable galvanometer according to claim 1, characterized in that: The side wall of the wave plate mounting bracket (42) is provided with a first groove (421), and the wave plate locking device (44) comprises a first locking screw (441) and a second threaded hole (411) provided on the side wall of the bracket body (41), and the first locking screw (441) passes through the second threaded hole and is pressed against the inner wall of the first groove (421) to lock the wave plate mounting bracket (42) to the bracket body (41), so that the wave plate mounting bracket (42) cannot rotate in the bracket body (41).

3. The laser with adjustable wave plate and non-adjustable galvanometer according to claim 2, characterized in that: A wave plate mounting hole (412) is provided at the rear end of the bracket body (41), and the wave plate mounting bracket (42) is arranged in the wave plate mounting hole (412).

4. The laser with adjustable wave plate and non-adjustable galvanometer according to claim 3, characterized in that: The wave plate mounting bracket (42) is detachably disposed in the wave plate mounting hole (412).

5. The laser with adjustable wave plate and non-adjustable galvanometer according to claim 1, characterized in that: The integrated mounting bracket (4) further comprises a first adjusting screw (45), a second adjusting screw (46) and a third adjusting screw (47); a gap (413) is provided between the DKDP crystal mounting bracket (43) and the bracket body (41); the DKDP crystal mounting bracket (43) can be rotated in the gap (413) to adjust the tilt angle; the upper side wall of the bracket body (41) further comprises a fifth threaded hole (414) and a sixth threaded hole (415); the lower side wall of the bracket body (41) comprises an eighth threaded hole (416) and a sixth threaded hole (417); The first adjusting screw (45) passes through the fifth threaded hole (414) and is pressed against the front end of the upper side of the DKDP crystal mounting bracket (43); the second adjusting screw (46) passes through the sixth threaded hole (415) and is pressed against the rear end of the upper side of the DKDP crystal mounting bracket (43); the third adjusting screw (47) passes through the eighth threaded hole (416) and is pressed against the lower side of the DKDP crystal mounting bracket (43) to fix the inclination angle of the DKDP crystal mounting bracket (43).

6. The laser with adjustable wave plate and non-adjustable galvanometer according to claim 5, characterized in that: The integrated mounting bracket (4) further comprises a mounting block (48), the side wall of the bracket body (41) further comprises a mounting groove (417), the side wall of the DKDP crystal mounting bracket (43) comprises two limiting bosses (431), the mounting block (48) is connected to the mounting groove (417), and the mounting block (48) is located between the two limiting bosses (431).

7. The laser with adjustable wave plate and non-adjustable galvanometer according to claim 1, characterized in that: A polarizing plate installation groove (418) is provided at the front end of the bracket body (41), and the polarizing plate (212) is arranged in the polarizing plate installation groove (418).

8. The laser with adjustable wave plate and non-adjustable galvanometer according to claim 7, characterized in that: The polarizer (212) is detachably disposed in the polarizer installation groove (418), and the position of the polarizer (212) is not adjustable.

9. The laser with adjustable wave plate and non-adjustable galvanometer according to claim 8, characterized in that: The bracket body (41) has an inclined end surface (419), and the polarizing plate mounting groove (418) is arranged on the inclined end surface (419).

10. The laser with adjustable wave plate and non-adjustable galvanometer according to claim 1, characterized in that: The resonant cavity component (21) also includes a working material module (214).

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