An experimental setup for pitch adjustment of a high-energy pulsed laser resonator.

Abstract

This invention relates to the field of laser pitch adjustment devices, and more particularly to an experimental apparatus for pitch adjustment of a high-energy pulsed laser resonator. The technical solution includes a laser resonator fixing base for fixing to an optical platform; a left fixing base support block and a right fixing base support block are slidably mounted on the laser resonator fixing base; a movable adjustable base is fixedly mounted between the left and right fixing base support blocks; a pitch adjustment drive gear is rotatably mounted on the movable adjustable base; and an adjusting handwheel is rotatably mounted on one side of the movable adjustable base and fixedly connected to a shaft-mounted transmission gear. This invention, through a precise gear transmission mechanism and a robust support and locking structure, achieves a unified balance between precise controllability and long-term stability in the pitch adjustment of a high-energy pulsed laser resonator, effectively improving the reliability and ease of operation of laser experiments.

Description

Technical Field

[0001] This invention relates to the field of laser pitch adjustment device technology, and more particularly to an experimental device for pitch adjustment of a high-energy pulsed laser resonator. Background Technology

[0002] In the experiments and applications of high-energy pulsed lasers, the attitude accuracy of the resonant cavity directly determines the laser's stability, beam quality, and output energy consistency. Among these, the pitch angle adjustment of the resonant cavity is the core element for achieving precise optical path alignment. In existing technologies, the pitch adjustment of high-energy pulsed laser resonant cavities often employs manual adjustment shims, bolt pre-tightening, or simple supports. While these methods can achieve a certain degree of attitude adjustment, they all share a common and prominent technical challenge: the contradiction between adjustment accuracy and the ability to maintain the adjusted attitude is difficult to reconcile.

[0003] Existing technologies using shim adjustment or bolt pre-tightening can achieve good attitude maintenance through mechanical locking, but the adjustment process relies on repeated manual trial and error, making it difficult to quantify accuracy and achieve continuous, smooth angle adjustment. When fine adjustments are needed, disassembly and reassembly are often required. While using a simple bracket can achieve relatively flexible angle adjustment, the lack of effective locking and vibration-resistant design makes the resonant cavity attitude prone to drift under the mechanical vibration and thermal stress generated during the operation of the high-energy pulsed laser, requiring frequent secondary calibration.

[0004] The aforementioned technical challenges prevent existing adjustment devices from simultaneously meeting the dual requirements of "precise controllability" and "long-term stability" in pitch adjustment for high-energy pulsed laser experiments, severely limiting the improvement of laser output beam quality and the reliability of experimental results. Therefore, this application proposes an experimental device for pitch adjustment of a high-energy pulsed laser resonator. Summary of the Invention

[0005] The purpose of this invention is to address the fact that existing adjustment devices in the background art cannot simultaneously meet the dual requirements of "precise and controllable" and "long-term stability" of pitch adjustment in high-energy pulsed laser experiments, which seriously restricts the improvement of laser output beam quality and the reliability of experimental results. This invention proposes an experimental device for pitch adjustment of the resonant cavity of a high-energy pulsed laser.

[0006] The technical solution of the present invention: An experimental device for pitch adjustment of a high-energy pulsed laser resonator, comprising:

[0007] Laser resonator mounting base, used to fix it to the optical platform;

[0008] The left and right fixed base support blocks are slidably mounted on the laser resonant cavity fixed base;

[0009] A movable adjustable base is fixedly installed between the left fixed base support block and the right fixed base support block, and a pitch adjustment drive gear is rotatably installed on the movable adjustable base.

[0010] The adjustment handwheel is fixedly connected to a shaft-driven transmission gear on one side of the movable adjustment base.

[0011] A laser resonator mounting base, rotatably mounted on a movable adjustable base, is used to mount the laser gain medium and the xenon lamp pump source.

[0012] The transmission component is mounted on the laser resonant cavity mounting base and is connected to the adjustment handwheel via transmission.

[0013] Optionally, the transmission assembly includes a cavity driven gear and an intermediate transmission gear fixedly mounted on one side of the laser resonator cavity mounting base. The laser resonator cavity mounting base, the cavity driven gear, and the intermediate transmission gear are coaxially and fixedly connected. The intermediate transmission gear meshes with the shaft-fixed transmission gear, and the cavity driven gear meshes with the pitch adjustment drive gear.

[0014] Optionally, the four corners of the laser resonant cavity fixing base are fixed to the optical platform by a series of hexagonal head screws: one, two, three, and four.

[0015] Optionally, the laser resonator cavity fixing base is threaded with a base fixing long screw one, a base fixing long screw two, a base fixing long screw three, and a base fixing long screw four on both sides respectively. One end of the base fixing long screw one and the base fixing long screw four are rotatably connected to the left fixing base support block, and one end of the base fixing long screw two and the base fixing long screw three are rotatably connected to the right fixing base support block.

[0016] Optionally, two bearings are installed on the left fixed base support block and the right fixed base support block, and the base fixing long screw one, base fixing long screw two, base fixing long screw three, and base fixing long screw four are fixedly connected to the inner ring of the bearings.

[0017] Optionally, a transmission bearing assembly is fixedly installed on one side of the movable adjustable base, and one end of the adjusting handwheel is fixedly inserted through the inner ring of the transmission bearing assembly.

[0018] Optionally, the adjusting handwheel is a swivel handle.

[0019] Compared with the prior art, this application includes at least one of the following beneficial technical effects:

[0020] This invention utilizes a multi-stage gear transmission mechanism consisting of a shaft-mounted transmission gear, an intermediate transmission gear, a pitch adjustment drive gear, and a cavity driven gear to precisely convert the circumferential rotation of the adjustment handwheel into the pitch oscillation of the laser resonant cavity mounting base. This transmission method enables continuous and smooth adjustment of the pitch angle, and the adjustment amount can be quantified and controlled, overcoming the technical shortcomings of traditional shim adjustment which relies on manual experience and has difficulty in quantifying precision.

[0021] In this invention, the left fixed base support block and the right fixed base support block are slidably installed on the fixed base, and the leveling and locking of the movable adjustable base is achieved by the cooperation of the base fixing long screw and the bearing. Combined with the self-locking characteristics of the gear meshing structure, the long-term stability of the resonant cavity attitude can be effectively maintained after adjustment, resisting the mechanical vibration and thermal stress interference generated when the high-energy pulsed laser is working, thus solving the problems of poor stability and frequent secondary calibration required by existing devices.

[0022] This invention employs a manual operating mechanism combined with a multi-stage gear transmission, allowing operators to precisely adjust the pitch angle of the resonant cavity simply by rotating the adjustment handwheel. This eliminates the need for repeated disassembly and assembly or the use of auxiliary tools, significantly simplifying the experimental procedure. Furthermore, all components are integrated onto a fixed base and a movable adjustable base, resulting in a compact overall structure that occupies little space and facilitates strategic deployment on optical experimental platforms.

[0023] In summary, this invention achieves a balance between precise controllability and long-term stability in the pitch adjustment of the resonant cavity of a high-energy pulsed laser through a precise gear transmission mechanism and a robust support and locking structure, effectively improving the reliability and ease of operation of laser experiments. Attached Figure Description

[0024] Figure 1 This is a front view of an experimental setup for pitch adjustment of a high-energy pulsed laser resonator.

[0025] Figure 2 A side view of an experimental setup for pitch adjustment of a high-energy pulsed laser resonator.

[0026] Figure 3 This is a top view of an experimental setup for pitch adjustment of a high-energy pulsed laser resonator.

[0027] Figure 4 This is a three-dimensional structural diagram of an experimental device for pitch adjustment of a high-energy pulsed laser resonator.

[0028] Reference numerals in the attached diagram: 1. Laser resonator cavity mounting base; 2. Base mounting long screw one; 3. Base mounting long screw two; 4. Base mounting long screw three; 5. Base mounting long screw four; 6. Left fixed base support block; 7. Right fixed base support block; 8. Socket head cap screw one; 9. Socket head cap screw two; 10. Socket head cap screw three; 11. Socket head cap screw four; 12. Transmission bearing assembly; 13. Adjustment handwheel; 14. Pitch adjustment drive gear; 15. Intermediate transmission gear; 16. Laser resonator cavity mounting base; 17. Cavity driven gear; 18. Movable adjustable base; 19. Shaft-fixed transmission gear. Detailed Implementation

[0029] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0030] Example: Figures 1-4 As shown in the figure, this embodiment discloses an experimental device for pitch adjustment of a high-energy pulsed laser resonator. Its main structure includes a laser resonator fixed base 1, a left fixed base support block 6, a right fixed base support block 7, a movable adjustable base 18, a pitch adjustment drive gear 14, an adjustment handwheel 13, a shaft-fixed transmission gear 19, a laser resonator mounting base 16, and a transmission assembly. All components are assembled together to form an integrated pitch adjustment structure, which can realize precise adjustment of the pitch angle of the high-energy pulsed laser resonator.

[0031] It should be noted that the laser resonator cavity mounting base 1 is the fundamental support component of the entire device. Specifically, the four corners of the laser resonator cavity mounting base 1 are fixed to the optical platform using hexagonal head screws 1-8, 2-9, 3-10, and 4-11, respectively. This fixing method securely fixes the laser resonator cavity mounting base 1 to the optical experimental platform, effectively isolating the transmission of mechanical vibrations from the experimental platform and ensuring the overall stability of the device.

[0032] In this embodiment, as Figure 3 , Figure 4The left fixed base support block 6 and the right fixed base support block 7 are slidably mounted on the laser resonator cavity fixed base 1. Specifically, the laser resonator cavity fixed base 1 has a base fixing long screw 1 2, a base fixing long screw 2 3, a base fixing long screw 3 4, and a base fixing long screw 4 5 threadedly mounted on both sides. One end of the base fixing long screw 1 2 and the base fixing long screw 4 5 is rotatably connected to the left fixed base support block 6, and one end of the base fixing long screw 2 3 and the base fixing long screw 3 4 is rotatably connected to the right fixed base support block 7. As a further preferred embodiment, two bearings are mounted on the left fixed base support block 6 and the right fixed base support block 7. The base fixing long screw 1 2, the base fixing long screw 2 3, the base fixing long screw 3 4, and the base fixing long screw 4 5 are fixedly connected to the inner ring of the bearings, thereby achieving a rotational engagement between the long screws and the support blocks.

[0033] The movable adjustable base 18 is fixedly installed between the left fixed base support block 6 and the right fixed base support block 7. A pitch adjustment drive gear 14 is rotatably mounted on the movable adjustable base 18. The pitch adjustment drive gear 14 serves as one of the input ends of the pitch adjustment transmission chain and is used to transmit the adjustment torque.

[0034] In this embodiment, the adjusting handwheel 13 is rotatably mounted on one side of the movable adjusting base 18, and the adjusting handwheel 13 is fixedly connected to the shaft-mounted transmission gear 19. In a preferred embodiment, the adjusting handwheel 13 is a perforated handle, making it easy for the operator to grip and apply force. Furthermore, a transmission bearing assembly 12 is fixedly mounted on one side of the movable adjusting base 18, and one end of the adjusting handwheel 13 is fixedly inserted through the inner ring of the transmission bearing assembly 12. The transmission bearing assembly 12 reduces mechanical friction during the rotation of the adjusting handwheel 13, ensuring smoothness and precision of the adjustment operation.

[0035] The laser resonator mounting base 16 is rotatably mounted on the movable adjustable base 18 and is used to mount the laser gain medium and the xenon lamp pump source. As the direct load-bearing component of the resonator, the laser resonator mounting base 16 allows for precise adjustment of the resonator's attitude through its pitch and oscillation.

[0036] like Figure 3The transmission assembly is mounted on the laser resonator cavity mounting base 16 and is connected to the adjustment handwheel 13. Specifically, the transmission assembly includes a cavity driven gear 17 and an intermediate transmission gear 15 fixedly mounted on one side of the laser resonator cavity mounting base 16. The laser resonator cavity mounting base 16, the cavity driven gear 17, and the intermediate transmission gear 15 are coaxially fixedly connected, that is, the three are fixedly connected around the same axis of rotation, forming a synchronously rotating whole. The intermediate transmission gear 15 meshes with the shaft-fixed transmission gear 19, and the cavity driven gear 17 meshes with the pitch adjustment drive gear 14. Through the above gear meshing relationship, the shaft-fixed transmission gear 19, the intermediate transmission gear 15, the pitch adjustment drive gear 14, and the cavity driven gear 17 constitute a multi-stage gear transmission mechanism.

[0037] The working principle is as follows: When the operator rotates the adjustment handwheel 13, the handwheel 13 drives the shaft-fixed transmission gear 19, which is fixedly connected to it, to rotate synchronously. The shaft-fixed transmission gear 19 meshes with the intermediate transmission gear 15, transmitting the rotational motion to the intermediate transmission gear 15. Since the intermediate transmission gear 15 is coaxially fixedly connected to the cavity driven gear 17, and both are fixedly connected to the laser resonant cavity mounting base 16, the rotation of the intermediate transmission gear 15 will drive the cavity driven gear 17 and the laser resonant cavity mounting base 16 to rotate synchronously. At the same time, the cavity driven gear 17 meshes with the pitch adjustment drive gear 14, which is rotatably mounted on the movable adjustment base 18, providing support and guidance for the rotation of the laser resonant cavity mounting base 16 under the action of gear meshing. Thus, the circumferential rotational motion of the adjustment handwheel 13 is precisely converted into the pitch swing of the laser resonant cavity mounting base 16 through the above-mentioned transmission components, thereby realizing continuous and quantitative adjustment of the resonant cavity pitch angle.

[0038] The experimental operation procedure of this invention embodiment is as follows:

[0039] First, the laser resonator mounting base 1 is fixed in the preset position on the optical experimental platform using hexagonal head screws 1-8, 2-9, 3-10, and 4-11. Then, by using the base fixing screws 1-2, 2-3, 3-4, and 4-5 in conjunction with the left and right fixed base support blocks 6 and 7, the level and position of the movable adjustable base 18 are adjusted, completing the overall leveling and locking of the device. Finally, the laser gain medium and xenon lamp pump source are installed into the laser resonator mounting base 16, completing the overall assembly of the device.

[0040] During the experiment, according to the optical path alignment requirements of the high-energy pulsed laser, the adjustment handwheel 13 was manually rotated. The rotational motion was converted into the pitch swing of the laser resonator mounting base 16 through the transmission component, thus achieving precise adjustment of the resonator pitch angle. After the optical path was accurately aligned, the self-locking characteristic of the gear meshing was used to ensure the long-term stability of the resonator attitude, and the high-energy pulsed laser could then be turned on for related experiments.

[0041] It is worth noting that, in terms of adjustment precision, this invention utilizes a multi-stage gear transmission mechanism consisting of a shaft-fixed transmission gear, an intermediate transmission gear, a pitch adjustment drive gear, and a cavity driven gear to precisely convert the circumferential rotation of the adjustment handwheel into the pitch oscillation of the laser resonant cavity mounting base. This transmission method uses gear meshing to achieve motion transmission. Compared to the traditional method of adjusting shims, which relies on repeated trial and error based on manual experience, it can achieve continuous and smooth adjustment of the pitch angle. Furthermore, the adjustment amount can be quantitatively controlled through the rotation angle of the handwheel, overcoming the technical defects of existing technologies where adjustment precision is difficult to quantify and fine-tuning is impossible.

[0042] Regarding stability, the left and right fixed base support blocks are slidably mounted on the laser resonator cavity fixed base. The movable adjustable base is leveled and locked via the cooperation of the base fixing screws and bearings, forming a stable support system after adjustment. Simultaneously, the gear meshing structure in the multi-stage gear transmission mechanism has self-locking characteristics. After the adjustment handwheel stops rotating, the gear transmission chain effectively maintains the position of the laser resonator cavity mounting base, resisting mechanical vibration and thermal stress interference generated during high-energy pulsed laser operation, preventing resonator cavity attitude drift, and solving the technical problems of poor stability and frequent secondary calibration required in existing devices.

[0043] Furthermore, in terms of ease of operation and compact structure, this invention uses an adjustment handwheel as the sole operating component. Operators only need to manually rotate the adjustment handwheel to achieve precise adjustment of the resonant cavity pitch angle, eliminating the need for repeated disassembly and assembly or the use of auxiliary tools, thus greatly simplifying the experimental operation process. All components are integrated onto the laser resonant cavity fixed base and the movable adjustment base, resulting in a compact overall structure that occupies little space and facilitates flexible deployment on optical experimental platforms.

[0044] In summary, this invention precisely converts the rotational motion of the adjustment handwheel into the pitch swing of the resonant cavity mounting base through a multi-stage gear transmission mechanism, achieving continuous and quantitative adjustment of the pitch angle and overcoming the shortcomings of traditional methods in terms of difficulty in quantifying precision. Simultaneously, by utilizing the locking structure of the base fixing screw and bearing, along with the self-locking characteristics of gear meshing, it effectively resists mechanical vibration and thermal stress interference after adjustment, maintaining the long-term stability of the resonant cavity attitude. Thus, in a compact and convenient manner, it addresses both the "precise controllability" and "long-term stability" requirements of high-energy pulsed laser resonant cavity pitch adjustment, significantly improving experimental reliability and operational efficiency.

[0045] The above specific embodiments are merely several optional embodiments of the present invention. Based on the technical solutions of the present invention and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. An experimental device for high-energy pulsed laser resonator tilt adjustment, characterized in that, include: Laser resonator mounting base (1), which is used to fix it to the optical platform; Left fixed base support block (6) and right fixed base support block (7) are slidably mounted on the laser resonant cavity fixed base (1). A movable adjustable base (18) is fixedly installed between the left fixed base support block (6) and the right fixed base support block (7), and a pitch adjustment drive gear (14) is rotatably installed on the movable adjustable base (18). Adjusting handwheel (13), which is rotatably mounted on one side of movable adjustable base (18) and fixedly connected to shaft transmission gear (19); A laser resonator mounting base (16) is rotatably mounted on a movable adjustable base (18) for mounting the laser gain medium and the xenon lamp pump source. The transmission component is mounted on the laser resonant cavity mounting base (16) and is connected to the adjustment handwheel (13) via transmission.

2. The experimental apparatus for pitch adjustment of a high-energy pulsed laser resonator according to claim 1, characterized in that, The transmission assembly includes a cavity driven gear (17) and an intermediate transmission gear (15) fixedly installed on one side of the laser resonant cavity mounting base (16). The laser resonant cavity mounting base (16), the cavity driven gear (17) and the intermediate transmission gear (15) are coaxially fixedly connected. The intermediate transmission gear (15) meshes with the shaft-fixed transmission gear (19). The cavity driven gear (17) meshes with the pitch adjustment active gear (14).

3. The experimental apparatus for pitch adjustment of a high-energy pulsed laser resonator according to claim 1, characterized in that, The four corners of the laser resonant cavity fixing base (1) are fixed to the optical platform by a hexagonal head screw (8), a hexagonal head screw (9), a hexagonal head screw (10), and a hexagonal head screw (11).

4. The experimental apparatus for pitch adjustment of a high-energy pulsed laser resonator according to claim 1, characterized in that, The laser resonator cavity fixing base (1) is threaded with a base fixing long screw one (2), a base fixing long screw two (3), a base fixing long screw three (4), and a base fixing long screw four (5) on both sides respectively. One end of the base fixing long screw one (2) and the base fixing long screw four (5) are rotatably connected to the left fixed base support block (6), and one end of the base fixing long screw two (3) and the base fixing long screw three (4) are rotatably connected to the right fixed base support block (7).

5. The experimental apparatus for pitch adjustment of a high-energy pulsed laser resonator according to claim 1, characterized in that, Two bearings are installed on the left fixed base support block (6) and the right fixed base support block (7). The base fixing screw one (2), base fixing screw two (3), base fixing screw three (4), and base fixing screw four (5) are fixedly connected to the inner ring of the bearing.

6. The experimental apparatus for pitch adjustment of a high-energy pulsed laser resonator according to claim 1, characterized in that, A transmission bearing assembly (12) is fixedly installed on one side of the movable adjustable base (18), and one end of the adjusting handwheel (13) is fixedly inserted through the inner ring of the transmission bearing assembly (12).

7. The experimental apparatus for pitch adjustment of a high-energy pulsed laser resonator according to claim 1, characterized in that, The adjusting handwheel (13) is a plum blossom handle.

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