An optical fiber laser

Abstract

The present invention discloses an optical fiber laser, which includes a pump source, a drive power supply, a control power supply, a drive board, a cooling board and a control board; the pump source, the drive power supply, the control power supply and the drive board are respectively arranged in the installation area of the cooling board and are flush with an edge position of the installation area; the long side of the drive power supply is arranged parallel to the long side of the pump source, the control power supply and the drive board are arranged adjacent to each other, and are respectively arranged adjacent to the pump source and the drive power supply; the control board is connected to the housing of the optical fiber laser, and an FPGA chip is provided on the control board; by installing the pump source, the drive power supply, the control power supply and the drive board in the installation area of the cooling board with no extra space available and the integrated and optimized design of the control board, the compactness of the optical fiber laser can be improved, thereby reducing the volume of the optical fiber laser, further saving the production and transportation costs of the optical fiber laser, and simultaneously achieving the technical effect of expanding the application field of the optical fiber laser.

Description

Technical Field

[0001] The present invention belongs to the technical field of lasers, and particularly relates to a fiber laser. Background Art

[0002] A fiber laser mainly consists of components such as a pump source, a beam combiner, a fiber grating, an active fiber, a passive fiber, a film stripper, laser control, a laser driver, and a laser output head. Fiber lasers have wide applications in technical fields such as industrial processing, communication, military defense security, and medical device instruments.

[0003] However, the volume of the fiber laser itself limits the further development of the application fields of the fiber laser. Therefore, it is necessary to reduce the volume of the fiber laser. Figure 1 For an existing small-sized fiber laser in the industry with a power of 3KW, it is produced by IPG-Apache Fiber Laser Technology Co., Ltd., and its model is YLR-3000-U-K. Its length, width, and height dimensions are 760mm×448mm×88mm. Figure 2 For an existing small-sized fiber laser in the industry with a power of 6KW, it is also produced by IPG-Apache Fiber Laser Technology Co., Ltd., and its model is YLR-6000-U. Its length, width, and height dimensions are 760mm×448mm×177mm. Although the above two fiber lasers of IPG-Apache Fiber Laser Technology Co., Ltd. achieve a relatively small size design, with the development of various technical fields towards miniaturization in order to save transportation costs, material costs, and enhance the competitiveness of products, the size of the existing small-sized fiber lasers cannot meet higher size requirements, and it is necessary to further reduce the size of the fiber laser. Summary of the Invention

[0004] In view of the above problems, the present invention discloses a fiber laser to overcome or at least partially solve the above problems.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] An optical fiber laser includes a pump source, a drive power supply, a control power supply, a drive board, a cooling board, and a control board; the front surface of the cooling board is composed of an installation area, a guiding area, and a protection area. The pump source, the drive power supply, the control power supply, and the drive board are respectively arranged in the installation area, and the pump source, the drive power supply, the control power supply, and the drive board are respectively flush with the edge positions of the installation area; the long side of the drive power supply is arranged parallel to the long side of the pump source; the control power supply and the drive board are adjacent to each other and are respectively adjacent to the pump source and the drive power supply; the guiding area is located on the extension line of the passive optical fiber connection end of the pump source and is adjacent to the passive optical fiber connection end of the pump source, and is used for placing and conducting the passive optical fiber to the back surface of the cooling board; the edge of the installation area extends outward to form the protection area, and the protection area is used to protect the components of the optical fiber laser located on the front and back surfaces of the installation area.

[0007] Optionally, the number of the pump sources is greater than one and less than four. A plurality of the pump sources are arranged in parallel and adjacent to each other along the width direction of a single pump source, and the long side of a single pump source is used as the long side of the pump source;

[0008] The number of the pump sources is not less than four. A plurality of the pump sources are arranged in parallel and adjacent to each other along the width direction of a single pump source, and the long side formed by the plurality of pump sources arranged is used as the long side of the pump source.

[0009] Optionally, the drive board and the control power supply are located between the pump source and the drive power supply and are arranged in sequence along the length direction of the drive power supply, and the long side of the drive board and the long side of the control power supply are respectively arranged parallel to the long side of the pump source; wire routing areas are respectively arranged between the drive board, the control power supply, and the drive power supply, and the wire routing areas are used for the wires respectively connected to the control board, the drive board, the control power supply, and the drive power supply.

[0010] Optionally, the optical fiber laser with the number of the pump sources not less than four further includes an extension board; the extension board is connected to the cooling board and is used as the guiding area.

[0011] Optionally, a plurality of the pump sources are provided and are divided into two rows. The passive optical fiber connection ends of the two rows of pump sources face the same direction and are arranged in parallel. The passive optical fiber connection end of the first row of pump sources is adjacent to the guiding area; an interval area is arranged between the first row of pump sources and the second row of pump sources, and the interval area is used for conducting the passive optical fiber connection end of the second row of pump sources.

[0012] A plurality of the pump sources in each row are arranged adjacent to each other in sequence along the width direction of a single pump source, and the long side of a single pump source serves as the long side of the pump source.

[0013] Optionally, the control power supply, the driver board, and the drive power supply are arranged in sequence along the long side of the pump source, and the wide side of the control power supply is arranged parallel to the long side of the pump source;

[0014] Wherein, two driver boards are provided and are in one-to-one correspondence and connection with the first row of pump sources and the second row of pump sources; the two driver boards are arranged along the width direction of a single driver board, and the wide side formed after the arrangement is arranged parallel to the long side of the pump source;

[0015] Routing areas are respectively provided between the driver board and the control power supply close to the pump source and the pump source, and between the two driver boards and the drive power supply respectively.

[0016] Optionally, the fiber laser further includes a cover plate; the first row of pump sources is located between the cover plate and the cooling plate, and the cover plate is connected to the cooling plate for placing a passive optical fiber connected to the second row of pump sources.

[0017] Optionally, the voltage of the control power supply uses an AC mains input with a range of 85 - 264V.

[0018] Optionally, in the installation area for placing the pump source, the cooling channels of the cooling plate are intermittently arranged; the pump source is internally provided with cooling channels, and the cooling channels of the pump source are located in the intermittent area and are communicated with the cooling channels of the cooling plate and serve as a part of the cooling channels of the cooling plate.

[0019] Optionally, the fiber laser further includes a control board; the control board is connected to the housing of the fiber laser for integrating external connection ports and signals, and an FPGA chip is provided on the control board, and the FPGA chip is used to control the enabling, power, and modulation signals of the laser.

[0020] The advantages and beneficial effects of the present invention are:

[0021] In the fiber laser of the present invention, by installing the pump source, drive power supply, control power supply, and drive board in the installation area of the cooling plate, and there is no remaining space on the front surface of the cooling plate except for the installation area, guiding area, and protection area. Further, there is no extra space available in the installation area except for the space occupied by the pump source, drive power supply, control power supply, drive board, and the wiring area, which can improve the compactness inside the fiber laser, thus achieving the effect of reducing the volume of the fiber laser, and further saving the production cost and transportation cost of the fiber laser. At the same time, using the protection area can prevent the fiber laser from being compressed and affecting its performance, and improve the compression resistance of the fiber laser during transportation. Description of the Drawings

[0022] By reading the following detailed description of the preferred embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present invention. Moreover, throughout the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0023] Figure 1 For an existing small industrial fiber laser with a power of 3KW, the model is YLR-3000-U-K produced by IPG-Apache Fiber Laser Technology Co., Ltd.;

[0024] Figure 2 For an existing small industrial fiber laser with a power of 6KW, the model is YLR-6000-U produced by IPG-Apache Fiber Laser Technology Co., Ltd.;

[0025] Figure 3 Schematic diagram of the internal structure of the fiber laser according to Embodiment 1 of the present invention;

[0026] Figure 4 Schematic diagram of the structure of the connection between the rear panel of the housing and the cooling plate in the fiber laser according to Embodiment 1 of the present invention;

[0027] Figure 5 Schematic diagram of the internal structure of the fiber laser according to Embodiment 2 of the present invention;

[0028] Figure 6 Schematic diagram of the internal structure of the fiber laser according to Embodiment 3 of the present invention;

[0029] Figure 7 Schematic diagram of the structure of the connection between the cooling channel of the cooling plate and the cooling channel of the pump source in the fiber laser according to Embodiment 3 of the present invention;

[0030] Figure 8 For Figure 1 Comparison diagram of the sizes of the fiber laser in

[0031] Figure 9 For Figure 2 the comparison diagram of the fiber laser in and the size of the fiber laser with a power of 6KW in one embodiment of the present invention.

[0032] To make the objectives, technical solutions and effects of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the scope of protection of the present invention.

[0033] The following will describe in detail the technical solutions provided by each embodiment of the present invention with reference to the drawings.

[0034] Embodiment 1

[0035] Combined with Figure 3 and Figure 4 as shown, this embodiment discloses a fiber laser, which includes a pump source 1, a drive power supply 2, a control power supply 3, a drive board 4, a cooling board 5 and a control board 6. The front surface of the cooling board 5 is composed of an installation area, a guiding area 51 and a protection area, and the pump source 1, the drive power supply 2, the control power supply 3 and the drive board 4 are respectively arranged in the installation area.

[0036] Among them, taking two pump sources as an example for the number of pump sources in this embodiment, the two pump sources are arranged in parallel along the width direction of a single pump source, the long side formed by the arranged pump sources is flush with the width edge of the installation area, and the wire connection end of the pump source is flush with the long edge of the installation area.

[0037] Preferably, the long side of the drive power supply 2 is arranged in parallel with the long side of the pump source 1, one long side of the drive power supply 2 is flush with the width edge of the installation area, and the two wide sides of the drive power supply 2 are respectively flush with the corresponding long edges of the installation area. The control power supply 3 and the drive board 4 are located between the pump source 1 and the drive power supply 2 and are arranged in sequence along the length direction of the drive power supply 2, and the long sides of the control power supply 3 and the drive power supply 2 are respectively arranged in parallel with the long side of the pump source 1. At the same time, the wide edges of the arranged control power supply 3 and the wide edge of the drive board 4 are respectively flush with the corresponding long edges of the installation area.

[0038] Combined with Figure 3 as shown, in this embodiment, wiring areas are respectively provided between the drive power supply 2, the control power supply 3 and the drive board 4. The wiring areas can be used to accommodate the wires connecting the control board, the control power supply, the drive board and the drive power supply, so that the wire routing inside the fiber laser is easy to distinguish and the simplicity of maintenance is improved.

[0039] The guiding area is located on the extension line of the passive optical fiber connection end of the pump source and is arranged adjacent to the passive optical fiber connection end of the pump source, and is used for placing and conducting the passive optical fiber to the back surface of the cooling plate.

[0040] The protection area is located outside the installation area, and specifically forms a protection area by extending outward from the edge of the installation area. For example, the edge of the installation area flush with the wide edge of the control power supply extends outward by 10 mm to form a guiding area, and the edge of the installation area flush with the wide edge of the drive power supply extends outward by 11.7 mm to form a guiding area.

[0041] In the fiber laser of this embodiment, by installing the pump source, drive power supply, control power supply and drive board in the installation area of the cooling plate, it can avoid the increase in the height of the fiber laser caused by the pump source, drive power supply, control power supply and drive board not being installed on the same surface of the cooling plate, so as to achieve the effect of reducing the height of the fiber laser. Moreover, there is no other space on the front surface of the cooling plate except for the installation area, guiding area and protection area. Further, there is no extra space available in the installation area except for the space occupied by the pump source, drive power supply, control power supply and drive board and the wiring area, which can improve the compactness inside the fiber laser, thereby achieving the effect of reducing the volume of the fiber laser, and further saving the production cost and transportation cost of the fiber laser. At the same time, the protection area can be used to prevent the internal components of the fiber laser from being pressed and affecting the performance of the fiber laser, and improve the compressive resistance of the fiber laser during transportation.

[0042] Of course, in other embodiments, wiring areas can also be respectively provided between the control power supply and the drive board, between the control power supply and the drive power supply, and between the drive board and the drive power supply. The wiring areas can be used to accommodate the wires connected to the control power supply and the drive board, improve the neatness of the connecting wires, and thus improve the simplicity of circuit maintenance.

[0043] Combined with Figure 4 As shown, in this embodiment, the control board 6 is connected to the housing of the fiber laser, and the control board 6 is used to integrate external connection ports and signals, etc. Specifically, the rear panel 10 of the housing is provided with a connection slot. One side of the control board 6 is located in the connection slot and fixed, and the other side of the control board 6 passes through the connection slot and is located outside the housing, so that the size inside the fiber laser does not need to be increased, thus achieving the effect of reducing the volume of the fiber laser.

[0044] Among them, the chip of the control board 6 is provided with an FPGA (Field Programmable Gate Array) chip and a single-chip microcomputer chip. The FPGA chip is used to control the enabling, power and modulation signals of the fiber laser, and at the same time monitor the current, temperature, cladding light intensity, occurrence position of faults and protection signals of the fiber laser, so as to improve the protection level of the fiber laser.

[0045] In addition, by transferring the functions of the single-chip microcomputer chip for driving current sampling, voltage monitoring, and humidity acquisition to the FPGA chip, the single-chip microcomputer chip can be eliminated. This can not only ensure that the functions of the fiber laser remain unchanged, but also reduce the number of single-chip microcomputer chips, thereby reducing the area occupied by the chips on the control board and further achieving the technical effect of reducing the height of the control board.

[0046] Furthermore, by reducing the generality of the control board, that is, making the functions of the control board correspond to those of the fiber laser and having no redundant electronic components on the control board, the number of electronic components can be reduced. As a result, the control board is reduced from the original size of 185 mm × 60 mm in length and width to 165 mm × 40 mm in this embodiment, so as to reduce the height of the rear panel of the housing to 80 mm.

[0047] Preferably, by improving the integrated design of the drive board 4, the drive board with the original size of 85 mm × 55 mm in length and width is adjusted to the drive board with the size of 155 mm × 40 mm in this embodiment. This can reduce the area occupied by the drive board and the control power supply, and there is no redundant unused space except for the areas occupied by the drive board, the control power supply, and the wiring area in the installation area, thereby enhancing the compactness of the installation area occupied by the drive board and the control power supply and further achieving the effect of reducing the volume of the fiber laser.

[0048] Furthermore, by placing the drive MOS tube and the current sensing resistor on the drive board directly above the cooling channel of the cooling plate, the cooling speed of the drive board can be increased, thereby achieving the effect of improving the working performance of the drive board.

[0049] Preferably, the voltage of the control power supply uses the voltage input of the general commercial power supply in the range of 85 - 264V. In this way, while meeting the voltage required by the fiber laser and on the basis of ensuring the surge and lightning strike resistance performance of the fiber laser, the length and width dimensions of the control power supply can be reduced, thereby improving the compactness of the internal components of the fiber laser and further achieving the effect of reducing the volume of the fiber laser.

[0050] Preferably, a groove is provided on the side of the cooling plate 5 near the passive fiber connection end 11 of the pump source and perpendicular to the long side of the pump source 1. By using this groove, the passive fiber can pass through to the back of the cooling plate and be fused with the beam combiner of the fiber laser, thus eliminating the need to additionally occupy the space inside the fiber laser and further achieving the effect of reducing the volume of the fiber laser.

[0051] Combined with Figure 8As shown, a 3KW fiber laser according to an embodiment of the present invention (located on the right side in the figure) is used in combination with a laser with a power of 3KW and a model of YLR-3000-U-K produced by IPG Photonics Corporation (located on the left side in the figure). Figure 9 As shown, a 6KW fiber laser according to an embodiment of the present invention (located on the right side in the figure) is compared with a laser with a power of 6KW and a model of YLR-6000-U produced by IPG Photonics Corporation (located on the left side in the figure). It can be seen that the volume of the fiber laser in the present invention is smaller than that of the fiber laser produced by IPG Photonics Corporation, enabling the fiber laser of the present invention to reduce the volume requirement of the installation space, thereby achieving the technical effect of expanding the application field of the fiber laser.

[0052] Embodiment 2

[0053] In combination Figure 5 As shown, another fiber laser is disclosed in this embodiment. Different from Embodiment 1, there are six pump sources 1 in this embodiment. The six pump sources are arranged in parallel along the width direction of a single pump source, and the long side formed after arranging the six pump sources is used as the long side of the pump source. The two wide sides formed after arranging the six pump sources are flush with the long sides of the corresponding installation areas respectively, while the passive fiber connection end 11 of the pump source is flush with the wide side of the cooling plate 5. The two wide sides of the drive power supply 2 are flush with the long sides of the corresponding installation areas respectively, and the long side of the drive power supply close to the wide side of the cooling plate is flush with the wide side of the installation area. In this way, the space of the installation area can be fully utilized, and by arranging the long side of the drive power supply parallel to the long side formed after arranging the six pump sources, the length and width dimensions of the fiber laser with six pump sources can be reduced, thereby achieving the effect of reducing the volume of the fiber laser in this embodiment.

[0054] In combination Figure 5 As shown, the fiber laser further includes an extension plate 7. The extension plate 7 is connected to the cooling plate 5 and is used as a guiding area. The extension plate can be used to place the passive fiber of the fiber laser. At the same time, using the extension plate to place the passive fiber instead of directly increasing the size of the cooling plate can achieve the effect of saving the manufacturing cost of the fiber laser. At the same time, the extension plate adopts a hollow aluminum plate structure, thereby achieving the technical effect of reducing the weight of the laser.

[0055] Preferably, the extension plate 7 and the cooling plate 5 are detachably connected by bolts, thereby improving the simplicity of replacing the extension plate.

[0056] In combination Figure 5 As shown, in this embodiment, the fiber laser further includes an indicating light source 8. The indicating light source 8 can help determine the spot size, direction, and position of the invisible laser and is used for spot positioning of the fiber laser.

[0057] Among them, in this embodiment, the driving board uses a driving board with a length and width of 85 mm × 55 mm. In this way, there will be free space between the driving power supply and the pump source. By placing the indicating light source 8 in this free space, the space utilization rate of the cooling plate can be improved accordingly.

[0058] Preferably, the fiber laser further includes a cover plate 9. The pump source 1 is located between the cover plate 9 and the cooling plate 5. The cover plate 9 and the cooling plate 5 are detachably and fixedly connected by bolts. The coiled passive optical fiber can be placed by using the cover plate, so that the passive optical fiber can be placed in the gap between the pump source and the housing, avoiding placing the passive optical fiber on the back of the cooling plate and increasing the length and width dimensions of the cooling plate, and thus achieving the effect of reducing the height of the fiber laser.

[0059] Embodiment Three

[0060] Combined with Figure 6 As shown, this embodiment discloses another fiber laser. Different from Embodiment One and Embodiment Two, there are four pump sources in this embodiment. The four pump sources are evenly divided into two rows. The first row of pump sources ( Figure 6 the lower right row of Figure 6 ) and the second row of pump sources (

[0061] the lower left row of Figure 6 ). The passive optical fiber connection end of the first row of pump sources is adjacent to the guiding area, and the guiding area 51 is located at the extension line position of the passive optical fiber connection end 11 of the first row of pump sources. An interval area is provided between the first row of pump sources and the second row of pump sources. This interval area is used to conduct the passive optical fiber connection end of the second row of pump sources. The conductive connection end of the second row of pump sources is flush with the wide edge of the installation area, and the long sides of the first row of pump sources and the second row of pump sources are respectively flush with the long edge of the installation area.

[0062] In this embodiment, the control power supply, the driving board, and the driving power supply are arranged in sequence along the long side of the pump source. The wide side of the control power supply is parallel to the long side of the pump source, and the long side of the control power supply and the wide side of the driving power supply are respectively flush with the wide edge of the corresponding installation area.

[0063] Among them, there are two driving boards 4, which correspond to and are connected to the first row of pump sources and the second row of pump sources one by one. The two driving boards are arranged along the width direction of a single driving board, that is, arranged along the direction parallel to the wide side of a single pump source, and the wide side formed after the two driving boards are arranged is parallel to the long side of the pump source. The side of the two driving boards that is close to and parallel to the long edge of the cooling board is flush with the long edge of the installation area. Preferably, the sum of the wide side dimension of the control power supply, the wide side dimension formed after the two driving boards are arranged, and the long side dimension of the driving power supply is equal to the long side dimension of the pump source.

[0064] At the same time, wiring areas are respectively provided between the driving board close to the pump source and the control power supply and the pump source, and between the two driving boards and the driving power supply respectively. The wiring areas can accommodate the wires connected to the control power supply and the driving board. Then, during maintenance, since the wires are in fixed positions, the connection lines of the wires can be found more quickly, thereby improving the simplicity of circuit maintenance of the fiber laser.

[0065] In this embodiment, by dividing multiple pump sources into two rows, and the sum of the wide side dimension of the control power supply, the wide side dimension formed after the two driving boards are arranged, and the long side dimension of the driving power supply is equal to the long side dimension of the pump source, the space utilization rate of the installation area can be improved, and the compactness between the control power supply, the driving board, and the driving power supply can be enhanced, thereby reducing the length dimension and width dimension of the fiber laser to achieve the effect of reducing the volume of the fiber laser.

[0066] Among them, the driving board in this embodiment has a length and width dimension of 85mm×55mm. In this way, it can be ensured that the sum of the wide side dimension formed after the two driving boards are arranged, the wide side dimension of the control power supply, and the long side dimension of the driving power supply is equal to the long side dimension of the pump source, and the sum of the long side dimension formed after the two driving boards are arranged and the width dimension of the wiring area between the control power supply and the pump source is equal to the wide side dimension of the driving power supply, thereby achieving the effect of reducing the long side and wide side dimensions of the fiber laser and further reducing the volume of the fiber laser.

[0067] Combined with Figure 6 As shown, in this embodiment, the first row of pump sources is located between the cover plate 9 and the cooling plate 5. The cover plate 9 is connected to the cooling plate 5, for example, by bolt disassembly connection, and is used to place the passive optical fiber that is coiled and connected to the second row of pump sources. The passive optical fiber connected to the second row of pump sources can be placed using the gap between the cover plate and the housing, avoiding the need to add an additional placement position for the passive optical fiber according to the original placement method - that is, placing it on the back of the cooling plate, which would cause an increase in the volume of the fiber laser, thereby achieving the effect of reducing the volume of the fiber laser.

[0068] Combined with Figure 7The figure shows the flow diagram of the cooling channels of the cooling plate. Among them, in the installation area where the pump source is placed, the cooling channels of the cooling plate 5 are intermittently arranged. Specifically, the interior of the pump source 1 is provided with cooling channels. The cooling channels of the pump source 1 are located in the intermittent area of the cooling plate 5 and are connected to the cooling channels of the cooling plate 5 and serve as part of the cooling channels of the cooling plate 5, enabling the coolant to directly contact the pump source. In this way, not only can the size of the pump source in the height direction be reduced, but also the cooling effect of the pump source can be improved.

[0069] As described above, it is only the specific implementation manner of the present invention. Under the above teaching of the present invention, those skilled in the art can make other improvements or deformations based on the above embodiments. Those skilled in the art should understand that the above specific description is only to better explain the purpose of the present invention, and the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. An optical fiber laser, characterized in that: It includes a pump source, a drive power supply, a control power supply, a drive board, a cooling board and a control board; the front of the cooling board is composed of an installation area, a guiding area and a protection area. The pump source, the drive power supply, the control power supply and the drive board are respectively arranged in the installation area, and the pump source, the drive power supply, the control power supply and the drive board are respectively flush with the edge positions of the installation area; the long side of the drive power supply is arranged parallel to the long side of the pump source; the control power supply and the drive board are adjacent to each other and are respectively adjacent to the pump source and the drive power supply; the guiding area is located on the extension line of the passive optical fiber connection end of the pump source and is adjacent to the passive optical fiber connection end of the pump source, and is used for placing and conducting the passive optical fiber to the back of the cooling board; the edge of the installation area extends outwards to form the protection area, and the protection area is used for protecting the components of the fiber laser located on the front and back of the installation area; The drive board and the control power supply are located between the pump source and the drive power supply and are arranged in sequence along the length direction of the drive power supply, and the long side of the drive board and the long side of the control power supply are respectively arranged parallel to the long side of the pump source; wiring areas are respectively arranged between the drive board, the control power supply and the drive power supply, and the wiring areas are used for the wires respectively connected to the control board, the drive board, the control power supply and the drive power supply.

2. The fiber laser according to claim 1, wherein: The number of the pump sources is more than one and less than four, and multiple pump sources are arranged parallel and adjacent to each other along the width direction of a single pump source, and the long side of a single pump source is used as the long side of the pump source; The number of the pump sources is not less than four, and multiple pump sources are arranged parallel and adjacent to each other along the width direction of a single pump source, and the long side formed by the multiple pump sources arranged is used as the long side of the pump source.

3. The fiber laser according to claim 2, characterized in that: The fiber laser with the number of the pump sources not less than four further includes an extension board; the extension board is connected to the cooling board and is used as the guiding area.

4. The fiber laser according to claim 1, wherein: There are multiple pump sources which are divided into two rows, the passive optical fiber connection ends of the two rows of pump sources face the same direction and are arranged parallel to each other, and the passive optical fiber connection end of the first row of pump sources is adjacent to the guiding area; an interval area is arranged between the first row of pump sources and the second row of pump sources, and the interval area is used for conducting the passive optical fiber connection end of the second row of pump sources; Multiple pump sources in each row are arranged adjacent to each other in sequence along the width direction of a single pump source, and the long side of a single pump source is used as the long side of the pump source.

5. The fiber laser according to claim 4, characterized in that: The control power supply, the drive board and the drive power supply are arranged in sequence along the long side of the pump source, and the wide side of the control power supply is arranged parallel to the long side of the pump source; Among them, there are two drive boards which are in one-to-one correspondence and connection with the first row of pump sources and the second row of pump sources; the two drive boards are arranged along the width direction of a single drive board, and the wide side formed after arrangement is arranged parallel to the long side of the pump source; A wiring area is respectively provided between the driving board and the control power supply close to the pump source and the pump source, and between the two driving boards and the driving power supply respectively.

6. The fiber laser according to claim 5, characterized in that: The fiber laser further includes a cover plate; the first row of pump sources is located between the cover plate and the cooling plate, and the cover plate is connected to the cooling plate for placing a passive optical fiber connected to the second row of pump sources.

7. The fiber laser according to any one of claims 1-6, characterized in that: The voltage of the control power supply is input with AC mains electricity in the range of 85 - 264V.

8. The fiber laser according to any one of claims 1-6, characterized in that: In the installation area for placing the pump source, the cooling channels of the cooling plate are intermittently arranged; a cooling channel is provided inside the pump source, and the cooling channel of the pump source is located in the intermittent area and is communicated with the cooling channel of the cooling plate and serves as a part of the cooling channel of the cooling plate.

9. The fiber laser according to any one of claims 1-6, characterized in that: The fiber laser further includes a control board; the control board is connected to the housing of the fiber laser for integrating external connection ports and signals, and an FPGA chip is provided on the control board, and the FPGA chip is used to control the enabling, power, and modulation signals of the laser.

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