Seed source structure for MOPA fiber laser system
By designing a compact and stable seed source structure, the problem of large size and weight of MOPA fiber laser system is solved, the assemblyability and repairability are improved, and the scope of application is expanded, making the system more suitable for engineering applications in the field of high-energy lasers.
Patent Information
- Application Number
- CN202420776214.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-15
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-04-15
AI Technical Summary
The existing MOPA fiber laser system has a large size and weight, poor assemblyability and repairability, and has limited application scope, making it difficult to widely use in engineering scenarios in the field of high-energy lasers.
A seed source structure for MOPA fiber laser system, including cover plate and body, is designed. By optimizing the design of optical path components, spectral modulation components and circuit components, it can be assembled onto the body through integrated integration of fastening parts to form a compact and stable integrated structure.
The volume and weight of the MOPA fiber laser system are significantly reduced, which improves the overall stability and repairability of the seed source, reduces assembly and maintenance costs, expands the scope of application, and makes the system more suitable for complex engineering scenario applications.
Smart Images
Figure CN222601699U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of optical fiber lasers and relates to a seed source structure used for a MOPA optical fiber laser system. Background Art
[0002] In the existing MOPA (Master Oscillator Power-Amplifier) fiber laser system, the functional modules such as the optical path module, the spectrum modulation module and the control module are usually assembled into the chassis in the final installation step, thereby realizing the assembly of the seed source. Since the chassis often adopts a standard 19-inch chassis, its overall structural size, volume and weight are large, and the assembly of the seed source includes multiple modules, so its overall assembly process is relatively complicated. Once there is a problem with the seed source, it is necessary to dismantle the entire chassis and check each module one by one, which consumes a lot of time and energy, and the chassis has poor assemblability and maintainability, thereby increasing the maintenance cost of the chassis.
[0003] As MOPA fiber laser systems are gradually applied to the field of high-energy lasers, the demand for higher-power MOPA fiber laser systems during spectral synthesis or coherent synthesis leads to an increase in the number of laser sub-beams, which increases the number of corresponding seed source structures, which will dramatically increase the size, volume, and weight of the overall structure of the MOPA fiber laser system, thereby further reducing assemblability and maintainability.
[0004] At present, the solution of using a standard chassis as the seed source structure leads to a sharp increase in the size, volume and weight of the MOPA fiber laser system, which makes the entire system unable to be moved at will. Therefore, the system can only be used in a specific environment in a laboratory or a stable environment. It is difficult to integrate and develop it into a separate product application. The scope of application is extremely limited, which also brings great restrictions and obstacles to the actual application of the MOPA fiber laser system in the field of high-energy lasers such as spectral synthesis or coherent synthesis and other engineering scenarios.
[0005] Based on this, in view of the technical problems in the prior art that the MOPA fiber laser system is large in size and weight, has poor assemblability and maintainability, and has a limited scope of application, a more reasonable technical solution needs to be provided to solve the existing technical problems. Utility Model Content
[0006] The utility model aims to provide a seed source structure for a MOPA fiber laser system to solve the technical problems in the prior art that the MOPA fiber laser system has large size and weight, poor assemblability and maintainability, and limited scope of application.
[0007] In order to achieve the above-mentioned object, the utility model provides a seed source structure for a MOPA fiber laser system, comprising a cover plate and a body, wherein the cover plate is connected to the body, and the body is provided with a power supply interface for plugging in a power supply communication cable and an output interface for plugging in an optical path output cable, wherein the power supply interface and the output interface are arranged on the side of the body, and the side is a surface on the same side or a surface on different sides;
[0008] The body comprises a top plate facing the cover plate and a bottom plate facing away from the cover plate, wherein the top plate is located between the cover plate and the bottom plate; a mounting groove for mounting the optical device and a guide plate for constraining the optical fiber coil are provided on the top plate, wherein the guide plates are provided in a plurality and arranged on the periphery of the mounting groove; the optical device is embedded in the mounting groove; the optical fiber coil is connected to the optical device and surrounds the guide plate along the circumferential direction;
[0009] The bottom plate is provided with a positioning groove for installing a spectrum modulation component, the spectrum modulation component is embedded in the positioning groove, and the assembly plate is connected to the body and covers the positioning groove, so that the spectrum modulation component is sealed in the positioning groove.
[0010] In a possible design, a top plate sealing groove and a bottom plate sealing groove are formed at the edges of the top plate and the bottom plate, the cover plate is attached to the sealing strip in the top plate sealing groove, and the top plate is attached to the sealing strip in the bottom plate sealing groove and fixedly connected to the body.
[0011] In a possible design, a boss extending along the thickness direction of the body is provided at the edge region of the body, and the height of the boss is flush with the height of the cover plate so that the top surfaces of the two are in the same plane.
[0012] In a possible design, a plurality of weight-reducing grooves are provided on the boss.
[0013] In a possible design, a positioning pin is provided on the bottom plate, and a positioning hole matched with the positioning pin is provided on the top plate; the positioning pin is inserted into the positioning hole to limit the position of the top plate.
[0014] In a possible design, the guide plate includes a straight-line plate and an arc-shaped plate, the arc-shaped plates are staggered with the straight-line plates and the arc-shaped plates are arranged at the corners of the body to change the winding direction of the optical fiber.
[0015] Through the above technical solutions, a comprehensive optimization design has been carried out for key modules such as optical path components, spectral modulation components, and circuit components, so that they can be integrated into the body through fastening parts such as screws to form a compact and stable integrated structure. This design not only improves the overall stability of the seed source, but also effectively reduces the connection errors between components, thereby improving performance. The seed source is relatively sealed by adding an assembly cover to prevent the intrusion of dust and impurities, and can also effectively prevent interference from the external environment, ensuring the stable operation of the seed source under harsh conditions. After that, by adding corresponding wiring to the power supply interface and output interface, the scalability of the system is improved, which provides convenience for subsequent upgrades and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0017] Figure 1 A schematic diagram of a top view of a seed source structure for a MOPA fiber laser system provided by the utility model in one embodiment;
[0018] Figure 2 A schematic diagram of a side view of a seed source structure for a MOPA fiber laser system provided by the utility model in one embodiment;
[0019] Figure 3 A schematic diagram of the three-dimensional structure of a seed source structure for a MOPA fiber laser system provided by the utility model in one embodiment, wherein the cover plate is removed to show the internal structure;
[0020] Figure 4 A schematic structural diagram of a seed source structure for a MOPA fiber laser system provided by the utility model in one embodiment, wherein part of the structure of the top plate, output interface, and assembly plate are removed in order to display the internal structure.
[0021] In the above drawings: 1-cover plate, 2-body, 21-top plate, 211-mounting groove, 212-guide plate, 213-top plate sealing groove, 22-bottom plate, 221-positioning groove, 222-assembly plate, 223-bottom plate sealing groove, 31-output interface, 32-power supply interface, 4-boss, 5-assembly groove. DETAILED DESCRIPTION
[0022] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments. It should be noted that although the description of these embodiments is used to help understand the present invention, it does not constitute a limitation of the present invention.
[0023] The specific structural and functional details disclosed herein are only used to describe the exemplary embodiments of the present invention. However, the present invention can be embodied in many alternative forms, and it should not be understood that the present invention is limited to the embodiments set forth herein.
[0024] With the continuous development of science and technology, fiber laser systems are being used more and more widely in various fields. However, the traditional 19-inch standard chassis solution has great limitations in volume, size and weight, which restricts the application of fiber laser systems to a certain extent. In order to overcome these limitations, this utility model proposes a seed source structure for a MOPA fiber laser system, which achieves a significant reduction in the size, volume and weight of the MOPA fiber laser system. Among them, Figures 1 to 4 A specific implementation of the seed source structure for the MOPA fiber laser system is shown.
[0025] See also Figures 1 to 4 As shown, the seed source structure for the MOPA fiber laser system includes a cover plate 1 and a body 2, the cover plate 1 is connected to the body 2, the body 2 is provided with a power supply interface 32 for plugging in a power supply communication cable and an output interface 31 for plugging in an optical path output cable, the power supply interface 32 and the output interface 31 are arranged on the side of the body 2, and the side surfaces are surfaces on the same side or surfaces on different sides.
[0026] The body 2 has a top plate 21 facing the cover plate 1, and is provided with a mounting groove 211 for mounting the optical device and a guide plate 212 for constraining the optical fiber coil, wherein the guide plates 212 are provided in plurality and arranged on the periphery of the mounting groove 211; the optical device is embedded in the mounting groove 211; the optical fiber coil is connected to the optical device and surrounds the guide plate 212 along the circumferential direction.
[0027] The top plate 21 is located between the bottom plate 22 and the cover plate 1, that is, the bottom plate 22 is arranged away from the cover plate 1. The bottom plate 22 is provided with a positioning groove 221 for installing the spectrum modulation component, the spectrum modulation component is embedded in the positioning groove 221, and the assembly plate 222 is connected to the bottom plate 22 and covers the positioning groove 221, so that the spectrum modulation component is sealed in the positioning groove 221.
[0028] Through the above technical scheme, a comprehensive optimization design is carried out for key modules such as optical path components, spectral modulation components, and circuit components, so that they can be integrated and assembled into the body 2 through fastening parts such as screws to form a compact and stable structure. This design not only improves the overall stability of the seed source, but also effectively reduces the connection error between components, thereby improving performance. And by adding an assembly cover 1, the seed source is relatively sealed to prevent the intrusion of dust and impurities, and can also effectively prevent interference from the external environment, ensuring the stable operation of the seed source under harsh conditions. Thereafter, by adding corresponding wiring to the output interface 31 and the power supply interface 32, the scalability of the system is improved, which provides convenience for subsequent upgrades and maintenance.
[0029] Among them, the optical path component, the spectrum modulation component and the circuit component can be assembled separately and then installed on the body 2 in an integrated manner. At the same time, a certain component (optical path component, spectrum modulation component and circuit component) can be replaced and removed separately in the integrated product, and the components on the body 2 can be processed by removing the cover plate 1. This can effectively improve the assemblability and maintainability of the seed source structure, thereby reducing the assembly and maintenance costs, and has good economy and practicality.
[0030] Compared with the traditional 19-inch standard chassis solution, the overall volume of the seed source structure is reduced by about 90%, significantly reducing the volume and weight of the fiber laser system. This innovative structural design not only makes the system more compact, but also optimizes the production process. Through the assembly line operation method, the assembly work of each component can be carried out efficiently, greatly improving the assembly efficiency. At the same time, this integrated design also effectively reduces the probability of misinstallation and missing parts, further reduces the defective rate, and reduces material waste.
[0031] Based on this, the seed source structure can be used in the MOPA fiber laser system to greatly reduce the size, volume and weight of the MOPA fiber laser system. Therefore, even if the number of MOPA fiber laser systems increases, the design difficulty and assembly difficulty can still be effectively reduced by using the MOPA fiber laser system with the seed source structure. In this way, the overall size, volume and weight of the MOPA fiber laser system are also reduced accordingly, making it widely used in complex engineering scenarios, which has brought important impetus to the development of the MOPA fiber laser system and laid the foundation for realizing a more compact, efficient and reliable fiber laser system.
[0032] It should be noted that key modules such as optical path components, spectrum modulation components, and circuit components are all functional modules in fiber lasers in the prior art.
[0033] Specifically, the body 2 includes a top plate 21 and a bottom plate 22, and the top plate 21 is positioned to the bottom plate 22 by positioning pins. The top plate 21 is fixedly connected to the bottom plate 22 by fastening parts such as screws. Thus, the optical path components are assembled by the top plate 21 and the spectrum modulation components are assembled by the bottom plate 22, and all of them are integrated and arranged on the body 2, which is convenient for installation and can also achieve optimal use of space. At the same time, the separate design of the top plate 21 and the bottom plate 22 allows the product to be independently assembled, debugged and repaired, which improves the convenience of installation and maintenance.
[0034] In an embodiment provided by the present disclosure, a top plate sealing groove 213 and a bottom plate sealing groove 223 are formed at the edges of the top plate 21 and the bottom plate 22, the cover plate 1 is attached to the sealing strip in the top plate sealing groove 213 and fixedly connected to the top plate 21, the top plate 21 is attached to the sealing strip in the bottom plate sealing groove 223 and fixedly connected to the bottom plate 22, the top plate sealing groove 213 and the bottom plate sealing groove 223 provide a groove for installing the sealing strip, the cover plate 1 and the top plate 21 are tightly fitted, and the top plate 21 and the bottom plate 22 are tightly fitted, thereby effectively preventing foreign substances from entering. Specifically, it is usually connected to the body 2 using fasteners such as screws and screws, so as to facilitate disassembly and assembly.
[0035] In one embodiment provided by the present disclosure, the edge area of the body 2 is provided with a boss 4 extending in the thickness direction thereof, and the height of the boss 4 is flush with the height of the cover plate 1, so that the top surfaces of the two are in the same plane. This design not only increases the overall strength of the body 2, but also makes the connection between the body 2 and the cover plate 1 tighter and more stable. The height of the boss 4 is flush with the height of the cover plate 1, making the transition between the body 2 and the cover plate 1 smoother, which not only enhances the overall aesthetics of the product, but also reduces the friction and wear that may occur during use.
[0036] In the present disclosure, the boss 4 is provided with an assembly groove 5 for assembling the top plate 21 and the bottom plate 22, and at the same time, the weight of the parts can be reduced. In this way, the top plate 21 and the bottom plate 22 can be closely fitted, and at the same time, by reasonably designing the number, shape and distribution position of the assembly grooves 5, the weight of the body 2 can be effectively reduced under the premise of ensuring the strength and rigidity of the body 2. This design method not only helps to reduce manufacturing costs, but also improves the performance of the parts, such as reducing the inertial force during movement and improving the vibration stability of the parts.
[0037] In the present disclosure, a positioning pin is provided on the bottom plate 22, and a positioning hole matched with the positioning pin is provided on the top plate 21; the positioning pin is inserted into the positioning hole to limit the position of the top plate 21, thereby facilitating rapid positioning and installation and improving assembly efficiency.
[0038] In an embodiment provided in the present disclosure, the guide plate 212 includes a straight-line plate and an arc-shaped plate. The arc-shaped plates are staggered with the straight-line plates and are arranged at the corners of the top plate 21 to change the winding direction of the optical fiber.
[0039] The straight straight plate is concise and practical, and can effectively block and guide the optical fiber coil to prevent it from escaping or deviating from the predetermined path, thereby providing a clear and direct path. The design of the curved plate cleverly utilizes the characteristics of the arc, allowing smooth turning during the optical fiber coiling process. By setting the curved plate at the corner of the top plate 21, we can effectively change the coiling direction of the optical path fiber, thereby achieving precise control of the optical fiber. This design not only improves the flexibility of the optical path, but also helps to reduce energy loss during optical fiber transmission. The staggered layout of the straight plate and the curved plate can optimize the structure of the guide plate 212 and improve its overall stability.
[0040] It should be noted that the utility model is not limited to the above optional implementations, and anyone can derive other various forms of products under the inspiration of the utility model. The above specific implementations should not be understood as limiting the scope of protection of the utility model. The scope of protection of the utility model shall be based on the definition in the claims, and the description can be used to interpret the claims.
Claims
1. A seed source structure for a MOPA fiber laser system, characterized in that: It comprises a cover plate and a square box-shaped body, the cover plate is connected to the body, the body is provided with a power supply interface for plugging in a power supply communication cable and an output interface for plugging in an optical path output cable, the power supply interface and the output interface are arranged on the side of the body, and the side is the same side or different side; The body comprises a top plate facing the cover plate and a bottom plate facing away from the cover plate, wherein the top plate is located between the cover plate and the bottom plate; a mounting groove for mounting the optical device and a guide plate for constraining the optical fiber coil are provided on the top plate, wherein the guide plates are provided in a plurality and arranged on the periphery of the mounting groove; the optical device is embedded in the mounting groove; the optical fiber coil is connected to the optical device and surrounds the guide plate along the circumferential direction; The bottom plate is provided with a positioning groove for installing a spectrum modulation component, the spectrum modulation component is embedded in the positioning groove, and the assembly plate is connected to the body and covers the positioning groove, so that the spectrum modulation component is sealed in the positioning groove.
2. The seed source structure for a MOPA fiber laser system according to claim 1, characterized in that: The edges of the top plate and the bottom plate are formed with a top plate sealing groove and a bottom plate sealing groove, the cover plate is attached to the sealing strip in the top plate sealing groove, and the top plate is attached to the sealing strip in the bottom plate sealing groove and fixedly connected to the body.
3. The seed source structure for a MOPA fiber laser system according to claim 2, characterized in that: The edge area of the body is provided with a boss extending along the thickness direction thereof, and the height of the boss is flush with the height of the cover plate so that the top surfaces of the two are in the same plane.
4. The seed source structure for a MOPA fiber laser system according to claim 3, characterized in that: The boss is provided with a plurality of weight-reducing grooves.
5. The seed source structure for a MOPA fiber laser system according to claim 1, characterized in that: The bottom plate is provided with a positioning pin, and the top plate is provided with a positioning hole matched with the positioning pin; the positioning pin is inserted into the positioning hole to limit the position of the top plate.
6. The seed source structure for a MOPA fiber laser system according to claim 1, characterized in that: The guide plate includes a straight plate and an arc-shaped plate. The arc-shaped plates are arranged alternately with the straight plates and are arranged at the corners of the body to change the winding direction of the optical fiber winding.