Multi-point switching device and pulse laser
By designing the locking mechanism and drive components of the multi-point switching device, the problem of unstable SESAM operating state was solved, realizing the stability of SESAM semiconductor chips under power failure and precise switching of operating points, thus extending the service life of SESAM.
Patent Information
- Application Number
- CN202422675055.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-04
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-11-04
AI Technical Summary
Existing SESAM multi-point working devices suffer from poor stability in SESAM operation, especially in the inability to fix the position of the SESAM semiconductor wafer after power failure, resulting in operating point displacement.
A multi-point switching device is designed, including a base, a mounting frame, a mounting component, a first driving component, and a locking mechanism. The locking mechanism restricts the movement of the mounting component when power is off, ensuring the stability of the SESAM semiconductor chip on the output optical path of the fiber collimator. The operating point is switched by moving the driving component on the plane.
Maintaining the stability of the SESAM semiconductor chip's operating state during power outages ensures the stability of the collimated light output by the fiber optic collimator when the SESAM semiconductor chip switches operating points, thereby extending the lifespan of the SESAM.
Smart Images
Figure CN223552849U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of laser technology, and in particular to a multi-point switching device and a pulsed laser. Background Technology
[0002] Ultrafast laser technology has important applications in precision measurement, aerospace, industrial production, biomedicine, and scientific research. Picosecond and femtosecond seed sources are the core components of ultrafast lasers. The mode-locking method used in ultrafast fiber laser seeds is mainly passive mode-locking technology, which is achieved by utilizing SESAM (nonlinear absorption effect of semiconductor saturable absorber mirrors). SESAM products have a low damage threshold, which can lead to dead pixels during long-term use, thus affecting the stability and lifespan of the entire laser system.
[0003] To extend the lifespan of SESAM, a common method is to change the operating point. Existing multi-point operating devices generally use polygonal electromagnets to move the SESAM semiconductor chip using magnetic force. However, the position of the SESAM semiconductor chip cannot be fixed after power is cut off, resulting in the operating point shifting and poor stability of the SESAM's working state. Utility Model Content
[0004] The main purpose of this invention is to propose a multi-point switching device and a pulsed laser, which aims to solve the problem of poor stability of the SESAM working state in existing SESAM multi-point working equipment.
[0005] To achieve the above objectives, this utility model proposes a multi-point switching device, comprising a base, a mounting frame, a mounting assembly, a first driving assembly, and a locking mechanism for restricting the movement of the mounting assembly relative to the base when power is off. The mounting frame, the mounting assembly, and the locking mechanism are all disposed on the base. The mounting frame has a mounting hole for an optical fiber collimator to extend into. The mounting assembly includes a mounting part with a mounting surface for mounting a component to be switched. The mounting hole is correspondingly disposed to the mounting surface so that the component to be switched is positioned in the optical path of the output light of the optical fiber collimator. The mounting part is driven by the first driving assembly to move relative to the base on the plane of the mounting surface.
[0006] According to some embodiments of the present invention, the mounting assembly further includes a connecting portion, which is slidably connected to the base along the x-direction, and the mounting portion is slidably connected to the connecting portion along the y-direction.
[0007] According to some embodiments of the present invention, the locking mechanism includes a first locking component and a second locking component. The first locking component includes a first locking part and a first locking groove formed on the base. The first locking part is movably disposed on the connecting part and can extend into the first locking groove. The first locking groove has a first limiting wall that restricts the movement of the first locking part in the x-direction. The second locking component includes a second locking part and a second locking groove formed on the connecting part. The second locking part is movably disposed on the mounting part and can extend into the second locking groove. The second locking groove has a second limiting wall that restricts the movement of the second locking part in the y-direction.
[0008] According to some embodiments of the present invention, the first locking groove includes a plurality of first toothed grooves spaced apart in the x direction, and a first limiting wall is formed on each of the first toothed grooves; the second locking groove includes a plurality of second toothed grooves spaced apart in the y direction, and a second limiting wall is formed on each of the second toothed grooves.
[0009] According to some embodiments of the present invention, the locking end of the first locking part is inclined inward toward the direction of the first locking groove, and the first tooth groove is V-shaped; and / or, the locking end of the second locking part is inclined inward toward the direction of the second locking groove, and the second tooth groove is V-shaped.
[0010] According to some embodiments of the present invention, the first locking assembly further includes a first spring, which is disposed on the side of the first locking portion opposite to the first locking groove; and / or, the second locking assembly further includes a second spring, which is disposed on the side of the second locking portion opposite to the second locking groove.
[0011] According to some embodiments of the present invention, the first driving component includes four first electromagnets and four second electromagnets. The four first electromagnets are respectively installed on the four inner walls of the mounting frame, and the four second electromagnets are respectively installed on the four outer walls of the mounting part. Each first electromagnet and each second electromagnet are arranged in a one-to-one correspondence.
[0012] According to some embodiments of the present invention, the connecting part has a first sliding groove in the x-direction at one end near the base and a second sliding groove in the y-direction at one end near the mounting part. The base has a first slider that can slide into the first sliding groove at one end near the connecting part, and the mounting part has a second slider that can slide into the second sliding groove at one end near the connecting part. The base and the connecting part are slidably connected through the first sliding groove and the first slider, and the mounting part and the connecting part are slidably connected through the second sliding groove and the second slider.
[0013] According to some embodiments of the present invention, the mounting frame body is provided with a sealing cavity, the mounting component, the first driving component and the locking mechanism are all disposed in the sealing cavity, and the mounting hole communicates with the sealing cavity.
[0014] In addition, this utility model also provides a pulsed laser, including an optical fiber collimator, a SESAM semiconductor chip, and a multi-point switching device as described in any of the above. The optical fiber collimator is disposed on the mounting frame and extends into and is fixed through the mounting hole of the mounting frame. The SESAM semiconductor chip is mounted on the mounting surface of the mounting part.
[0015] This utility model has at least the following beneficial effects:
[0016] In this utility model, the mounting frame, the mounting assembly, and the locking mechanism are all disposed on the base. The mounting frame has a mounting hole for the fiber optic collimator to extend into. The mounting assembly includes a mounting part, which has a mounting surface for mounting the component to be switched. The mounting hole is correspondingly provided with the mounting surface so that the component to be switched is in the optical path of the output light of the fiber optic collimator. The mounting part is driven by the first driving assembly to move relative to the base on the plane where the mounting surface is located. The component to be switched includes a SESAM semiconductor chip. The fiber optic collimator outputs collimated light to the SESAM semiconductor chip. The locking mechanism is in a locked state, fixing the mounting part to the base, thereby keeping the SESAM semiconductor chip stationary relative to the fiber optic collimator to ensure the stability of the SESAM's operating state. When the current operating point of the SESAM semiconductor chip reaches the end of its service life and a switching operation point is required, the locking mechanism is released, and then the first driving component drives the mounting part to move on the plane of the mounting surface, completing the switching of the operating point while ensuring that the distance between the fiber optic collimator and the SESAM semiconductor chip remains unchanged. After the switching is completed, the multi-point switching device can be powered off, and the locking mechanism returns to the locked state, keeping the SESAM semiconductor chip stationary relative to the fiber optic collimator to ensure the stability of the SESAM's operating state when the fiber optic collimator outputs collimated light to the SESAM semiconductor chip. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 A cross-sectional view of a multi-point switching device provided in an embodiment of this utility model;
[0019] Figure 2 for Figure 1 A three-dimensional structural diagram of the multi-point switching device after removing the mounting frame;
[0020] Figure 3 for Figure 1 Cross-sectional view of the multi-point switching device in the x-direction after removing the mounting frame;
[0021] Figure 4 for Figure 1 The cross-sectional view of the multi-point switching device in the y-direction after removing the mounting frame.
[0022] Explanation of reference numerals in the attached figures:
[0023] 100 - Multi-point switching device; 1 - Base; 11 - First slider; 2 - Mounting frame; 3 - Mounting assembly; 31 - Mounting part; 311 - Second slider; 32 - Connecting part; 321 - First slide groove; 322 - Second slide groove; 4 - First drive assembly; 41 - First electromagnet; 42 - Second electromagnet; 5 - Locking mechanism; 51 - First locking assembly; 511 - First locking part; 512 - First locking groove; 5121 - First toothed groove; 513 - First spring; 52 - Second locking assembly; 521 - Second locking part; 522 - Second locking groove; 5221 - Second toothed groove; 523 - Second spring; 6 - Second drive assembly; 61 - Third electromagnet; 62 - Fourth electromagnet; 200 - Fiber optic collimator; 300 - SESAM semiconductor chip. Detailed Implementation
[0024] The technical solutions in the embodiments of this utility model are described clearly and completely below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0025] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.
[0026] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0027] This invention provides a multi-point switching device and a pulsed laser. Figures 1 to 4 This is a specific embodiment of a multi-point switching device provided by the present invention.
[0028] like Figure 1 and Figure 2 As shown, this utility model embodiment provides a multi-point switching device 100, including a base 1, a mounting frame 2, a mounting component 3, a first driving component 4, and a locking mechanism 5 for limiting the movement of the mounting component 3 relative to the base 1 when power is off. The mounting frame 2, the mounting component 3, and the locking mechanism 5 are all disposed on the base 1. The mounting frame 2 has a mounting hole for the fiber optic collimator 200 to extend into. The mounting component 3 includes a mounting part 31, which has a mounting surface for mounting a component to be switched. The mounting hole is correspondingly disposed to the mounting surface so that the component to be switched is in the optical path of the output light of the fiber optic collimator 200. The mounting part 31 is driven by the first driving component 4 to move relative to the base 1 on the plane where the mounting surface is located.
[0029] In this utility model, the mounting frame 2, the mounting assembly 3, and the locking mechanism 5 are all disposed on the base 1. The mounting frame 2 has a mounting hole for the fiber optic collimator 200 to extend into. The mounting assembly 3 includes a mounting part 31, which has a mounting surface for mounting the component to be switched. The mounting hole is provided corresponding to the mounting surface so that the component to be switched is in the optical path of the output light of the fiber optic collimator 200. The mounting part 31 is driven by the first driving assembly 4 to move relative to the base 1 on the plane where the mounting surface is located. The component to be switched includes a SESAM semiconductor chip 300. The fiber optic collimator 200 outputs collimated light to the SESAM semiconductor chip 300. The locking mechanism 5 is in a locked state, so that the mounting part 31 is fixed on the base 1, thereby making the SESAM semiconductor chip 300 stationary relative to the fiber optic collimator 200 to ensure the stability of the SESAM working state. When the current working point of the SESAM semiconductor chip 300 reaches the end of its service life and the working point needs to be switched, the locking mechanism 5 is released, and then the first driving component 4 drives the mounting part 31 to move on the plane where the mounting surface is located, so as to complete the switching of the working point while ensuring that the distance between the fiber optic collimator 200 and the SESAM semiconductor chip 300 remains unchanged. After the switching is completed, the power can be turned off to the multi-point switching device 100, and the locking mechanism 5 will return to the locked state, so that the SESAM semiconductor chip 300 is stationary relative to the fiber collimator 200, to ensure the stability of the SESAM working state when the fiber collimator 200 outputs collimated light to the SESAM semiconductor chip 300.
[0030] It should be noted that both the mounting component 3 and the base 1 are made of non-magnetic, thermally conductive materials. Since the SESAM semiconductor chip 300 generates heat after receiving the collimated light output from the fiber optic collimator 200, the heat is dissipated through the thermally conductive mounting component 3 and the base 1 to prevent excessive heat from affecting the lifespan of the SESAM semiconductor chip 300. Specifically, both the mounting component 3 and the base 1 are made of copper.
[0031] The movement of the mounting part 31 is not limited, as long as it ensures that the mounting part 31 can move relative to the base 1 on the plane where the mounting surface is located. For example, in some embodiments, such as Figure 2As shown, the mounting assembly 3 further includes a connecting part 32, which is slidably connected to the base 1 along the x-direction, and the mounting part 31 is slidably connected to the connecting part 32 along the y-direction. With this configuration, the position of the mounting part 31 relative to the base 1 in the x-direction is changed by sliding the connecting part 32 to the base 1, and the position of the mounting part 31 relative to the base 1 in the y-direction is changed by sliding the mounting part 31 to the connecting part 32, ultimately enabling the mounting part 31 to move to various positions on the plane of the mounting surface.
[0032] The specific structure of the locking mechanism 5 is not limited, as long as it ensures that the locking mechanism 5 achieves locking in the power-off state. In some embodiments, such as... Figure 3 and Figure 4 As shown, the locking mechanism 5 includes a first locking component 51 and a second locking component 52. The first locking component 51 includes a first locking part 511 and a first locking groove 512 formed on the base 1. The first locking part 511 is movably disposed on the connecting part 32 and can extend into the first locking groove 512. The first locking groove 512 has a first limiting wall that restricts the movement of the first locking part 511 in the x-direction. The second locking component 52 includes a second locking part 521 and a second locking groove 522 formed on the connecting part 32. The second locking part 521 is movably disposed on the mounting part 31 and can extend into the second locking groove 522. The second locking groove 522 has a second limiting wall that restricts the movement of the second locking part 521 in the y-direction. With this configuration, when power is off, the first locking part 511 cooperates with the first locking groove 512 to lock the connecting part 32, and the second locking part 521 cooperates with the second locking groove 522 to lock the mounting part 31.
[0033] Specifically, in some embodiments, such as Figure 3 and Figure 4As shown, the multi-point switching device 100 further includes a second driving component 6. The second driving component 6 includes a third electromagnet 61 connected to the first locking part 511 and a fourth electromagnet 62 connected to the second locking part 521. The first locking part 511 can be driven away from the first locking groove 512 by the third electromagnet 61, and the second locking part 521 can be driven away from the second locking groove 522 by the fourth electromagnet 62. With this configuration, when energized, the third electromagnet 61 drives the first locking part 511 away from the first locking groove 512 to release the lock on the connecting part 32, and the fourth electromagnet 62 drives the second locking part 521 away from the second locking groove 522 to release the lock on the mounting part 31. Thus, the locking mechanism 5 can be locked when power is off and unlocked when power is on.
[0034] Furthermore, in order to achieve precise switching of the operating point of the SESAM semiconductor chip 300, in some embodiments, such as Figure 2 , Figure 3 and Figure 4 As shown, the first locking groove 512 includes a plurality of first toothed grooves 5121 spaced apart in the x-direction, and a first limiting wall is formed on each of the first toothed grooves 5121. The second locking groove 522 includes a plurality of second toothed grooves 5221 spaced apart in the y-direction, and a second limiting wall is formed on each of the second toothed grooves 5221. With this configuration, the first toothed grooves 5121 can be used as x-coordinate values, and the second toothed grooves 5221 can be used as y-coordinate values, thereby dividing the SESAM semiconductor wafer 300 into multiple two-dimensional coordinate points. Through the locking action of the first locking part 511 with the first toothed groove 5121 and the locking action of the second locking part 521 with the second toothed groove 5221, the precise switching of the operating point of the SESAM semiconductor wafer 300 can be achieved.
[0035] Because the position of the connecting part 32 driven by the first driving component 4 may have a slight deviation, the first locking part 511 and the first tooth groove 5121 may be misaligned, making it impossible to achieve locking. Therefore, in some embodiments, such as Figure 4As shown, the locking end of the first locking part 511 is inclined inward toward the first locking groove 512, and the first tooth groove 5121 is V-shaped. With this configuration, even if there is a slight misalignment between the first locking part 511 and the first tooth groove 5121, the locking end of the first locking part 511 can move along the inclined surface of the first tooth groove 5121 through the engagement of the V-shaped locking end with the first tooth groove 5121, until it abuts against the bottom of the first tooth groove 5121 to achieve locking. Furthermore, because the shape of the locking end of the first locking part 511 matches the shape of the first tooth groove 5121, precise switching of the operating point of the SESAM semiconductor wafer 300 in the x-direction can be achieved.
[0036] Similarly, since there may be a slight deviation in the position of the first driving component 4 driving the mounting part 31 to move, the second locking part 521 and the second tooth groove 5221 may be misaligned, making it impossible to achieve locking. Therefore, in some embodiments, such as Figure 3 As shown, the locking end of the second locking part 521 is inclined inward toward the direction of the second locking groove 522, and the second tooth groove 5221 is V-shaped. With this configuration, even if there is a slight misalignment between the second locking part 521 and the second tooth groove 5221, the locking end of the second locking part 521 can move along the inclined surface of the second tooth groove 5221 through the engagement of the V-shaped locking end with the second tooth groove 5221 until it abuts against the bottom of the groove to achieve locking. Furthermore, because the shape of the locking end of the second locking part 521 matches the shape of the second tooth groove 5221, precise switching of the operating point of the SESAM semiconductor wafer 300 in the y-direction can be achieved.
[0037] The two technical features mentioned above can be set individually or simultaneously.
[0038] When the multi-point switching device 100 is vertically positioned, the third electromagnet 61 is de-energized, and the first locking part 511 moves downward under its own weight, approaching the first locking groove 512 to achieve locking. However, when the multi-point switching device 100 is horizontally positioned, the third electromagnet 61 is de-energized, and the first locking part 511 cannot lock with the first locking groove 512. Therefore, in some embodiments, such as... Figure 4As shown, the first locking assembly 51 further includes a first spring 513, which is disposed on the side of the first locking portion 511 facing away from the first locking groove 512. When the third electromagnet 61 is energized, the first locking portion 511 moves away from the first locking groove 512 to release the lock, and the first spring 513 is in a compressed state. When the third electromagnet 61 is de-energized, the first locking portion 511 moves closer to the first locking groove 512 under the elastic force of the first spring 513 to lock. By setting the first spring 513, the multi-point switching device 100 can be adapted to various usage scenarios.
[0039] Similarly, when the multi-point switching device 100 is vertically positioned, the fourth electromagnet 62 is de-energized, and the second locking part 521 moves downward under its own weight, approaching the second locking groove 522 to achieve locking. However, when the multi-point switching device 100 is horizontally positioned, the fourth electromagnet 62 is de-energized, and the second locking part 521 cannot lock with the second locking groove 522. Therefore, in some embodiments, such as... Figure 3 As shown, the second locking assembly 52 further includes a second spring 523, which is disposed on the side of the second locking portion 521 facing away from the second locking groove 522. When the fourth electromagnet 62 is energized, the second locking portion 521 moves away from the second locking groove 522 to release the lock, and the second spring 523 is in a compressed state. When the fourth electromagnet 62 is de-energized, the second locking portion 521 moves closer to the second locking groove 522 under the elastic force of the second spring 523 to lock. By setting the second spring 523, the multi-point switching device 100 can be adapted to various usage scenarios.
[0040] The two technical features mentioned above can be set individually or simultaneously.
[0041] The specific structure of the first driving component 4 is not limited, as long as it ensures that the first driving component 4 can drive the mounting part 31 to move relative to the base 1 on the plane where the mounting surface is located. For example, in some embodiments, such as Figure 1As shown, the first driving assembly 4 includes four first electromagnets 41 and four second electromagnets 42. The four first electromagnets 41 are respectively installed on the four inner walls of the mounting frame 2, and the four second electromagnets 42 are respectively installed on the four outer walls of the mounting part 31. Each first electromagnet 41 and each second electromagnet 42 is arranged in a one-to-one correspondence. When it is necessary to drive the mounting part 31 to move relative to the base 1 in the y-direction, the corresponding first electromagnets 41 and second electromagnets 42 in the y-direction are energized. Under the action of magnetic force, the mounting part 31 moves along the y-direction on the connecting part 32. When it is necessary to drive the mounting part 31 to move relative to the base 1 in the x-direction, the corresponding first electromagnets 41 and second electromagnets 42 in the x-direction are energized. Since the mounting part 31 is stationary relative to the connecting part 32 in the x-direction, the action of magnetic force is transmitted to the connecting part 32, causing the connecting part 32 to move along the x-direction on the base 1, thereby driving the mounting part 31 to move relative to the base 1 in the x-direction.
[0042] In some embodiments, such as Figure 2 and Figure 4 As shown, the connecting part 32 has a first sliding groove 321 along the x-direction at one end near the base 1, and a second sliding groove 322 along the y-direction at one end near the mounting part 31. The base 1 has a first slider 11 protruding at one end near the connecting part 32, which can slide into the first sliding groove 321. The mounting part 31 has a second slider 311 protruding at one end near the connecting part 32, which can slide into the second sliding groove 322. The base 1 and the connecting part 32 are slidably connected through the first sliding groove 321 and the first slider 11, and the mounting part 31 and the connecting part 32 are slidably connected through the second sliding groove 322 and the second slider 311. With this configuration, on the one hand, the connecting part 32 and the base 1 can be slidably connected in the x direction by the cooperation of the first sliding groove 321 and the first slider 11, and the mounting part 31 and the connecting part 32 can be slidably connected in the y direction by the cooperation of the second sliding groove 322 and the second slider 311. On the other hand, the engagement between each sliding groove and the slider can ensure the stability of the connection between each component.
[0043] To improve the lifespan of the SESAM semiconductor wafer 300, it is necessary to ensure that the SESAM semiconductor wafer 300 is in a dust-free working environment. Therefore, in some embodiments, such as... Figure 1As shown, the mounting frame 2 has a sealed cavity, and the mounting assembly 3, the first driving assembly 4, and the locking mechanism 5 are all located within the sealed cavity. The mounting hole communicates with the sealed cavity. This arrangement, by enclosing the components with the mounting frame 2, serves two purposes: firstly, it prevents dust accumulation, and secondly, it protects the components within the sealed cavity from damage due to impacts.
[0044] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A multi-point switching device, characterized in that, The device includes a base, a mounting frame, a mounting assembly, a first drive assembly, and a locking mechanism for limiting the movement of the mounting assembly relative to the base when power is off. The mounting frame, the mounting assembly, and the locking mechanism are all mounted on the base. The mounting frame has a mounting hole for an optical fiber collimator to extend into. The mounting assembly includes a mounting part with a mounting surface for mounting a component to be switched. The mounting hole corresponds to the mounting surface so that the component to be switched is positioned in the optical path of the output light from the optical fiber collimator. The mounting part is driven by the first drive assembly to move relative to the base on the plane of the mounting surface.
2. The multi-point switching device as described in claim 1, characterized in that, The mounting assembly further includes a connecting part, which is slidably connected to the base along the x-direction, and the mounting part is slidably connected to the connecting part along the y-direction.
3. The multi-point switching device as described in claim 2, characterized in that, The locking mechanism includes a first locking component and a second locking component. The first locking component includes a first locking part and a first locking groove formed on the base. The first locking part is movably disposed on the connecting part and can extend into the first locking groove. The first locking groove has a first limiting wall that restricts the movement of the first locking part in the x direction. The second locking assembly includes a second locking part and a second locking groove formed on the connecting part. The second locking part is movably disposed on the mounting part and can extend into the second locking groove. The second locking groove has a second limiting wall that restricts the movement of the second locking part in the y direction.
4. The multi-point switching device as described in claim 3, characterized in that, The first locking groove includes a plurality of first toothed grooves spaced apart in the x direction, and a first limiting wall is formed on each of the first toothed grooves. The second locking groove includes a plurality of second toothed grooves spaced apart in the y direction, and a second limiting wall is formed on each of the second toothed grooves.
5. The multi-point switching device as described in claim 4, characterized in that, The locking end of the first locking part is inclined inward toward the first locking groove, and the first tooth groove is V-shaped; and / or, The locking end of the second locking part is inclined inward toward the direction of the second locking groove, and the second tooth groove is V-shaped.
6. The multi-point switching device as described in claim 3, characterized in that, The first locking assembly further includes a first spring, which is disposed on the side of the first locking portion opposite to the first locking groove; and / or, The second locking assembly further includes a second spring, which is disposed on the side of the second locking portion opposite to the second locking groove.
7. The multi-point switching device as described in claim 2, characterized in that, The first driving component includes four first electromagnets and four second electromagnets. The four first electromagnets are respectively installed on the four inner walls of the mounting frame, and the four second electromagnets are respectively installed on the four outer walls of the mounting part. Each first electromagnet and each second electromagnet is arranged in a one-to-one correspondence.
8. The multi-point switching device as described in claim 2, characterized in that, The connecting part has a first sliding groove along the x-direction at one end near the base, and a second sliding groove along the y-direction at one end near the mounting part. The base has a first slider that can slide into the first sliding groove at one end near the connecting part, and the mounting part has a second slider that can slide into the second sliding groove at one end near the connecting part. The base and the connecting part are slidably connected through the first sliding groove and the first slider, and the mounting part and the connecting part are slidably connected through the second sliding groove and the second slider.
9. The multi-point switching device as described in claim 1, characterized in that, The mounting frame has a sealed cavity, and the mounting assembly, the first driving assembly, and the locking mechanism are all located in the sealed cavity. The mounting hole communicates with the sealed cavity.
10. A pulsed laser, characterized in that, The device includes an optical fiber collimator, a SESAM semiconductor chip, and a multi-point switching device as described in any one of claims 1 to 9. The optical fiber collimator is disposed on the mounting frame and extends into and is fixed through the mounting hole of the mounting frame. The SESAM semiconductor chip is mounted on the mounting surface of the mounting part.