DKDP bicrystal Q-switch structure

Abstract

The utility model provides a DKDP bicrystal Q-switch structure, which comprises a first insulating shell and a second insulating shell, DKDP crystals are arranged in the first insulating shell and the second insulating shell, and a connecting mechanism is arranged between the first insulating shell and the second insulating shell. The two specially designed insulating shells are arranged, the two insulating shells are the annular cylinders, the inner diameter of each annular cylinder can be used for installing the DKDP crystals, one DKDP crystal is installed in each cylinder, and when the crystals are abnormal in the assembling process, the crystals can be conveniently disassembled. Because the two DKDP crystals are directly installed in the annular cylindrical insulating shell and can be directly detached, the size of the insulating shell can be made to be very compact. In order to prevent the crystal from being damaged, the outer side needs a shell, and accessories are added. When the two insulating shells equipped with the crystals are matched together, only the jackscrew is needed for fixation. And during disassembly, only the jackscrew needs to be screwed off, the shell cannot be damaged, and disassembly is convenient.

Description

Technical Field

[0001] The utility model relates to the field of DKDP double-crystal Q-switch, and more specifically, to a DKDP double-crystal Q-switch structure. Background Art

[0002] The Q-switch is an important optical element in solid-state Q-switched lasers. The DKDP crystal has advantages such as a high electro-optic coefficient, a wide transmission band, a high birefringence coefficient, and is easy to grow into a large-size single crystal, and is widely used in Q-switches. The DKDP crystal is prone to deliquescence and has a low hardness, so it is usually installed in a sealed housing when in use. When the DKDP Q-switch is in use, a pulsed voltage with a very narrow rising edge needs to be applied. Using two crystals can reduce the applied voltage by half, which is more conducive to the realization of a narrow rising edge and can more quickly achieve the Q-switching effect. At the same time, the voltage applied to the crystal is reduced, which is beneficial to the long-term use of the crystal.

[0003] The assembly of the double-crystal DKDP Q-switch is more complex than that of the single-crystal DKDP Q-switch. It not only needs to achieve the functions of reinforcement, sealing, and power-on, but also needs to consider that it can be disassembled when an abnormality occurs during assembly. When the existing double-crystal DKDP Q-switch is disassembled, if the two crystals are removed in the same direction, they will inevitably collide with each other and cause damage. If they are removed from their respective end faces, the crystals must be wrapped with an outer shell, which will increase the volume of the crystals and ultimately lead to an increase in the volume of the Q-switch, affecting the use of the switch.

[0004] Therefore, we make improvements and propose a structural design of a DKDP double-crystal Q-switch. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a DKDP double-crystal Q-switch structure, which solves the problems mentioned in the background art.

[0006] In order to achieve the above-mentioned utility model purpose, the utility model provides the following technical solutions:

[0007] The structural design of the DKDP double-crystal Q-switch is to solve the above problems.

[0008] Specifically, this application is as follows:

[0009] It includes a first insulating housing and a second insulating housing. DKDP crystals are installed inside both the first insulating housing and the second insulating housing, and a connecting mechanism is provided between the first insulating housing and the second insulating housing.

[0010] As a preferred technical solution of the present application, the materials of the first insulating shell and the second insulating shell are both high-performance insulating materials such as polyimide (PI) or polyphenylene sulfide (PPS).

[0011] As a preferred technical solution of the present application, the connecting mechanism includes an installation groove and a mounting ring, and the installation groove is opened on one side surface of the second insulating shell, and the mounting ring is fixedly installed on one side surface of the first insulating shell, and the connection method between the installation groove and the installation ring is a snap-fit connection, and a snap-fit structure is formed between the first insulating shell and the second insulating shell.

[0012] As a preferred technical solution of the present application, a rubber O-ring is arranged inside the mounting groove.

[0013] As a preferred technical solution of the present application, a connecting groove is provided on the outer surface of the mounting ring, and a mounting hole is provided between the mounting groove and the outer surface of the second insulating shell, and the connecting groove and the internal thread of the mounting hole are connected with a top screw.

[0014] As a preferred technical solution of the present application, three connecting grooves and three mounting holes are respectively opened on the outer surface of the mounting ring and the outer surface of the second insulating shell.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] In the scheme of this application:

[0017] By setting up two specially designed insulating shells, the two insulating shells are annular cylinders. The inner diameter of the annular cylinder can be used to install DKDP crystals. A DKDP crystal is installed in each cylinder. When an abnormality occurs during the crystal assembly process, the crystal can be easily removed. Because the two DKDP crystals are directly installed in the insulating shell of the annular cylinder and can be directly removed, the size of the insulating shell can be made very compact. In order to prevent the crystal from being damaged, an outer shell is required on the outside, and accessories are added. When the two insulating shells with crystals installed are matched together, they only need to be fixed with a top screw. When disassembling, you only need to unscrew the top screw, which will not cause damage to the shell and is easy to disassemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional structural diagram of the DKDP dual crystal Q-switching switch structure provided in this application;

[0019] Figure 2 A schematic diagram of the three-dimensional structure of the DKDP dual crystal Q-switching switch structure provided by the present application;

[0020] Figure 3 DKDP dual crystal Q-switching switch structure provided in this application Figure 3 The enlarged structural diagram of the middle A part;

[0021] Figure 4 This is a schematic cross-sectional view of the side of the DKDP double-crystal Q-switch structure provided for this application.

[0022] Labels in the figure:

[0023] 1. First insulating shell; 2. Second insulating shell; 3. DKDP crystal; 4. Connecting mechanism; 401. Installation groove; 402. Installation ring; 403. Rubber O-ring; 404. Connecting groove; 405. Installation hole; 406. Setscrew. Detailed implementation manners

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described examples are some, but not all, of the embodiments of the present utility model.

[0025] Therefore, the following detailed description of the embodiments of the present utility model is not intended to limit the scope of the present utility model to be protected, but merely represents some embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0026] It should be noted that, without conflict, the embodiments in the present utility model and the features and technical solutions in the embodiments may be combined with each other.

[0027] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0028] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product of this utility model is normally placed, or the orientation or positional relationship commonly understood by those skilled in the art. Such terms are only for the convenience of describing the present utility model 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 thus should not be construed as limiting the present utility model. In addition, terms such as "first" and "second" are only used for descriptive distinction and cannot be construed as indicating or implying relative importance.

[0029] To solve the technical problems in the background art, the following DKDP double-crystal Q-switch structure is provided:

[0030] Combined with Figure 1 - Figure 4As shown in the figure, a DKDP double-crystal Q-switch structure provided by the present utility model includes a first insulating shell 1 and a second insulating shell 2. DKDP crystals 3 are installed inside both the first insulating shell 1 and the second insulating shell 2, and a connecting mechanism 4 is provided between the first insulating shell 1 and the second insulating shell 2.

[0031] In this embodiment: The DKDP double-crystal Q-switch structure consists of two key components, namely the first insulating shell 1 and the second insulating shell 2. Inside these two insulating shells, high-quality DKDP crystals 3 are ingeniously installed. These crystals, as core components, play a crucial role in the modulation and control of laser pulses. To ensure the tight connection and stability between the two insulating shells, a connecting mechanism 4 is specially provided, which ensures the overall strength of the structure.

[0032] As a preferred embodiment, on the basis of the above method, further, the materials of the first insulating shell 1 and the second insulating shell 2 are both selected from high-performance insulating materials such as polyimide PI or polyphenylene sulfide PPS.

[0033] In this embodiment: Selecting high-performance insulating materials such as polyimide PI or polyphenylene sulfide PPS as the materials of the first insulating shell 1 and the second insulating shell 2 brings significant advantages. Firstly, these materials have excellent insulating properties, can effectively isolate current, protect the internal DKDP crystals 3 from electromagnetic interference, and ensure the stability and reliability of the laser Q-switch. Secondly, both polyimide PI and polyphenylene sulfide PPS have excellent properties such as high temperature resistance, wear resistance, and corrosion resistance, enabling the entire switch structure to operate stably for a long time in a harsh working environment and extending the service life.

[0034] As a preferred embodiment, on the basis of the above method, further, the connecting mechanism 4 includes an installation groove 401 and an installation ring 402. The installation groove 401 is opened on one side surface of the second insulating shell 2, and the installation ring 402 is fixedly installed on one side surface of the first insulating shell 1. The connection method between the installation groove 401 and the installation ring 402 is snap connection, and a snap structure is formed between the first insulating shell 1 and the second insulating shell 2.

[0035] In this embodiment: The connecting mechanism 4 includes an installation groove 401 and an installation ring 402, and adopts a snap connection method, which brings significant advantages to the DKDP double-crystal Q-switch. This snap structure simplifies the installation and disassembly process. Without complex tools and cumbersome steps, the tight connection between the two insulating shells can be achieved, improving work efficiency.

[0036] As a preferred embodiment, on the basis of the above method, further, a rubber O-ring 403 is provided inside the installation groove 401.

[0037] In this embodiment: A rubber O-ring 403 is additionally provided inside the installation groove 401. As an excellent sealing element, the rubber O-ring 403 can effectively fill the tiny gap between the installation groove 401 and the installation ring 402, forming a tight sealing layer to prevent external impurities such as dust and moisture from entering the interior, protecting the DKDP crystal 3 and circuit components from contamination and corrosion, thereby extending the service life of the device.

[0038] Secondly, the rubber O-ring 403 also has certain elasticity and buffering effects. It can form a soft transition layer between the first insulating shell 1 and the second insulating shell 2, reducing the stress concentration caused by vibration or impact, lowering the risk of damage to internal components, and enhancing the anti-seismic and anti-impact capabilities of the device.

[0039] In addition, the material selection of the rubber O-ring 403 also takes into account its environmental adaptability. It can maintain good sealing performance and elasticity within a wide temperature range, ensuring that the connecting mechanism 4 can perform stably under various working conditions.

[0040] As a preferred implementation method, on the basis of the above method, further, a connecting groove 404 is provided on the outer surface of the installation ring 402, and an installation hole 405 is provided between the installation groove 401 and the outer surface of the second insulating shell 2. A setscrew 406 is threadedly connected inside the connecting groove 404 and the installation hole 405.

[0041] In this embodiment: When installing the first insulating shell 1 and the second insulating shell 2, the installation ring 402 will be stuck into the installation groove 401. When the connecting groove 404 on the outer surface of the installation ring 402 is aligned with the installation hole 405 between the installation groove 401 and the outer surface of the second insulating shell 2, the setscrew 406 can be screwed into the installation hole 405 and the connecting groove 404 to fixedly connect the first insulating shell 1 and the second insulating shell 2, effectively preventing loosening or detachment caused by vibration or external force, and ensuring the stability and reliability of the connecting mechanism 4 during long-term operation.

[0042] As a preferred implementation method, on the basis of the above method, further, three connecting grooves 404 and three installation holes 405 are respectively provided on the outer surface of the installation ring 402 and the outer surface of the second insulating shell 2.

[0043] In this embodiment: By respectively providing three connecting grooves 404 and mounting holes 405 on the outer surface of the mounting ring 402 and the outer surface of the second insulating shell 2, and using setscrews 406 with threaded connections, an optimized layout of multi-point connection is achieved; significantly enhancing the stability of the switch structure, enabling the two insulating shells to be tightly and stably connected together, effectively resisting external vibrations and impacts; at the same time, multi-point connection also improves the connection accuracy and reliability, ensuring that the DKDP crystal 3 can be accurately positioned and operate efficiently, reducing performance fluctuations and failure risks caused by connection errors.

[0044] Specifically, the working principle of this solution is as follows:

[0045] During use, the two DKDP crystals 3 are respectively installed in the first insulating shell 1 and the second insulating shell 2. A rubber O-ring 403 is placed in the installation groove 401 of the second insulating shell 2. Then, the mounting ring 402 on one side surface of the first insulating shell 1 is snapped into the installation groove 401 on the surface of the second insulating shell 2. Subsequently, a bench vice is used to forcefully squeeze the first insulating shell 1 and the second insulating shell 2, causing the rubber O-ring 403 to deform sufficiently so that the first insulating shell 1 and the second insulating shell 2 are closely attached together. At this time, the connecting groove 404 on the outer surface of the mounting ring 402 is aligned with the mounting hole 405 between the installation groove 401 and the outer surface of the second insulating shell 2. The setscrew 406 is screwed into the mounting hole 405 and the connecting groove 404 to install the first insulating shell 1 and the second insulating shell 2.

[0046] There are three mounting holes 405 around the second insulating shell 2, which are fixedly connected in cooperation with the setscrews 406, and can fix the first insulating shell 1 and the second insulating shell 2 together. After the bench vice is loosened, the rubber O-ring 403 will have a certain amount of rebound, but it is stuck by the setscrew 406, so the first insulating shell 1 and the second insulating shell 2 will not separate; and the rubber O-ring 403 plays a sealing role between the first insulating shell 1 and the second insulating shell 2. The above is the working process of the entire device, and the content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0047] The above embodiments are only used to illustrate the present invention and do not limit the technical solutions described in the present invention. Although this specification has described the present invention in detail with reference to the above-mentioned various embodiments, the present invention is not limited to the above specific embodiments. Therefore, any modification or equivalent replacement of the present invention; and all technical solutions and improvements that do not depart from the spirit and scope of the present invention are covered within the scope of the claims of the present invention.

Claims

1. A DKDP double-crystal Q-switching structure, comprising a first insulating shell (1) and a second insulating shell (2), characterized in that: Inside the first insulating shell (1) and the second insulating shell (2), a DKDP crystal (3) is installed, and a connecting mechanism (4) is provided between the first insulating shell (1) and the second insulating shell (2).

2. The DKDP double-crystal Q-switching structure according to claim 1, wherein: The materials of the first insulating shell (1) and the second insulating shell (2) are both selected from high-performance insulating materials such as polyimide (PI) or polyphenylene sulfide (PPS).

3. A DKDP double-crystal Q-switching structure according to claim 1, characterized in that: The connecting mechanism (4) includes a mounting groove (401) and a mounting ring (402). The mounting groove (401) is opened on one side surface of the second insulating shell (2), and the mounting ring (402) is fixedly installed on one side surface of the first insulating shell (1). The connection method between the mounting groove (401) and the mounting ring (402) is snap connection, and a snap structure is formed between the first insulating shell (1) and the second insulating shell (2).

4. A DKDP double-crystal Q-switching structure according to claim 3, characterized in that: A rubber O-ring (403) is arranged inside the mounting groove (401).

5. A DKDP double-crystal Q-switching structure according to claim 3, characterized in that: A connecting groove (404) is opened on the outer surface of the mounting ring (402), and a mounting hole (405) is opened between the mounting groove (401) and the outer surface of the second insulating shell (2). A set screw (406) is threadedly connected inside the connecting groove (404) and the mounting hole (405).

6. A DKDP double-crystal Q-switching structure according to claim 5, characterized in that: Three connecting grooves (404) and mounting holes (405) are respectively opened on the outer surface of the mounting ring (402) and the outer surface of the second insulating shell (2).

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