Composite laser system

Abstract

The utility model discloses a composite laser system, and relates to the technical field of lasers. The device comprises a laser device and an output head, the laser device comprises more than two laser generators and optical fibers arranged corresponding to the laser generators, the laser generators are used for generating processing laser, and the laser generators transmit the processing laser through the optical fibers; the output head comprises a space beam combining module and more than two collimators, one end, deviating from the laser generator, of each optical fiber is correspondingly connected with each collimator, the collimators are used for collimating the processing laser, and the space beam combining module is used for combining and emitting the collimated laser emitted by each collimator. According to the laser system, the space beam combining module is arranged in the output head, so that the laser system can emit multi-wavelength laser to adapt to the requirements of multiple working conditions, welding combined beams in the laser system are reduced, welding procedures are reduced, and the size of the laser system is reduced; the laser generator and the output head are connected through the optical fiber, so that the output head is more convenient to mount, dismount and use.

Description

Technical Field

[0001] This utility model relates to the field of laser technology, and in particular to a composite laser system. Background Technology

[0002] The principles of laser-material interaction are complex and diverse; different laser parameters (such as wavelength, power, and pulse width) and material properties lead to different interaction effects. These interactions have wide applications in laser technology, such as materials processing, medical treatment, and scientific research.

[0003] However, existing lasers can generally only output laser light of a certain fixed wavelength, and the application materials and fields are fixed, which affects their applicability. Utility Model Content

[0004] Therefore, it is necessary to provide a composite laser system that aims to solve the technical problem that existing lasers can generally only output lasers of a certain fixed wavelength, and the application materials and fields are fixed, thus affecting their applicability.

[0005] This invention provides a composite laser system, including a laser and an output head, wherein...

[0006] The laser includes two or more laser generators and optical fibers corresponding to each laser generator. The laser generators are used to generate processing lasers, and each laser generator transmits the processing lasers through the optical fibers.

[0007] The output head includes a spatial beam combining module and two or more collimators. The end of each optical fiber facing away from the laser generator is connected to each collimator in a corresponding manner. The collimator is used to collimate the processing laser output from the optical fiber. The spatial beam combining module is used to combine the collimated lasers emitted from each collimator into a single beam for emission.

[0008] In one embodiment, each of the optical fibers is fused to each of the collimators in a one-to-one correspondence.

[0009] In one embodiment, an armored protective layer is also included, which covers the exterior of each of the optical fibers between the laser and the output head.

[0010] In one embodiment, the spatial beam combining module includes a dichroic mirror for combining the processing lasers into a single beam.

[0011] In one embodiment, the laser generator is one of a continuous fiber laser generator, a quasi-continuous fiber laser generator, a pulsed fiber laser generator, a semiconductor laser generator, and an ultraviolet laser generator.

[0012] In one embodiment, the laser further includes a main control module and a drive module. The main control module is electrically connected to the drive module and is used to issue commands to control the drive module. The drive module is electrically connected to each of the laser generators and is used to supply power to each of the laser generators according to the commands.

[0013] In one embodiment, the laser generator includes a first laser generator and a second laser generator, the collimator includes a first collimator and a second collimator, and the spatial beam combining module includes a dichroic mirror. The dichroic mirror reflects the laser output from the first collimator and transmits the laser output from the second collimator, so that the two laser beams are combined into one beam.

[0014] In one embodiment, the laser generator includes a first laser generator, a second laser generator, and a third laser generator; the collimator includes a first collimator, a second collimator, and a third collimator; and the spatial beam combining module includes a first dichroic mirror and a second dichroic mirror. The first dichroic mirror reflects the laser output from the first collimator and transmits the laser output from the second collimator, thus combining the two laser beams into a single beam. The second dichroic mirror transmits the combined beam and reflects the laser output from the third collimator, thus combining the two laser beams into a single beam.

[0015] In one embodiment, the laser generator includes a first laser generator and a second laser generator, the collimator includes a first collimator and a second collimator, the first collimator and the second collimator are placed side by side, and the spatial beam combining module includes a dichroic mirror and a reflector. The reflector reflects the laser output from the first collimator to the dichroic mirror, and the dichroic mirror reflects the laser output from the first collimator and transmits the laser output from the second collimator, so that the two laser beams are combined into one beam.

[0016] In one embodiment, the output head further includes a protective lens disposed at the light-emitting end of the dichroic mirror.

[0017] Implementing the embodiments of this utility model will have the following beneficial effects:

[0018] The composite laser system of this invention comprises a laser generator that produces processing lasers. Each processing laser is transmitted via optical fiber to a collimator in the output head. The collimator collimates the processing lasers output from the optical fiber and outputs them. The output head also includes a spatial beam combiner module, which combines the collimated lasers from each collimator into a single output beam. This invention integrates multiple laser generators to form a laser and incorporates a collimator and spatial beam combiner module in the output head. This allows for the coupling of lasers of various wavelengths to the output head via optical fiber, facilitating adaptation to diverse operating conditions and reducing the system's size. The use of optical fiber to connect the laser generators and the output head makes installation, disassembly, and use of the output head more convenient. Combined with spatial beam combiner, the system can achieve increased power while maintaining high-quality laser output. Attached Figure Description

[0019] 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.

[0020] in:

[0021] Figure 1 This is an isometric schematic diagram of a composite laser system in one embodiment.

[0022] Figure label:

[0023] 1. Laser; 11. First housing; 12. Optical fiber; 13. Laser generator; 14. Main control module; 15. Drive module;

[0024] 2. Output head; 21. Second housing; 22. Spatial beam combining module; 221. Dichroic mirror; 222. Reflector; 23. Collimator; 24. Protective lens;

[0025] 3. Armored cable protection layer. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0028] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0029] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0030] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0031] Please combine them together Figure 1 The composite laser system provided by this utility model will now be described.

[0032] The composite laser system of this utility model includes a laser 1 and an output head 2. The laser 1 includes two or more laser generators 13 and optical fibers 12 corresponding to each laser generator 13. The laser generators 13 are used to generate processing lasers, and each laser generator 13 transmits the processing laser through the optical fiber 12. The output head 2 includes a spatial beam combining module 22 and two or more collimators 23. The end of each optical fiber 12 facing away from the laser generator 13 is connected to each collimator 23 in a one-to-one correspondence. The collimators 23 are used to collimate the processing laser output from the optical fiber 12. The spatial beam combining module 22 is used to combine the collimated lasers emitted from each collimator 23 into a single beam for emission.

[0033] It is understood that in the composite laser system of this invention, the laser generator 13 in the laser 1 generates the processing laser. Each processing laser is transmitted to a collimator 23 in the output head 2 via an optical fiber 12. The collimator 23 collimates the processing laser output from the optical fiber 12. The output head 2 also has a spatial beam combining module 22, which combines the collimated lasers emitted from each collimator 23 into a single beam. This invention integrates multiple laser generators 13 to form the laser 1, and sets up a collimator 23 and a spatial beam combining module 22 in the output head 2. This allows lasers of multiple wavelengths to be coupled to the output head 2 via optical fibers 12, which is beneficial for adapting to various working conditions and reducing the size of the laser system. By using optical fibers 12 to connect the laser generator 1 and the output head 2, the installation, disassembly, and use of the output head 2 are made more convenient. Combined with spatial beam combining, the system can improve power while ensuring high-quality laser output.

[0034] Please continue to refer to Figure 1 In one embodiment, the laser 1 further includes a first housing 11, in which each laser generator 13 and each optical fiber 12 are encapsulated. The first housing 11 can be used to provide protection for the laser generators 13 and optical fibers 12. The output head 2 includes a second housing 21, in which a spatial beam combining module 22 and each collimator 23 are encapsulated. The second housing 21 can be used to provide protection for the spatial beam combining module 22 and each collimator 23.

[0035] In one embodiment of a composite laser system, each fiber 12 is fused to a collimator 23 in a one-to-one correspondence. This eliminates the air gap between them, reduces beam damage to the end face under high power output conditions, and thus enhances the collimator's resistance to optical damage in the system.

[0036] In one embodiment of a composite laser system, the single-output multi-wavelength laser 1 system further includes an armored cable protection layer 3, which covers the exterior of each optical fiber 12 between the laser 1 and the output head 2. By providing the armored cable protection layer 3, each optical fiber 12 between the laser 1 and the output head 2 can be protected, thereby preventing external damage to them.

[0037] In one embodiment of a composite laser system, collimator 23 is a fiber optic collimator. Specifically, a fiber optic collimator is an optical element primarily used to convert the diverging light output from fiber 12 into parallel light. It typically consists of a lens or mirror and is capable of collimating the beam in fiber 12 into a parallel beam. The fiber optic collimator can reduce the divergence angle of the beam, thereby improving the coupling efficiency of the beam.

[0038] In one embodiment of a composite laser system, the spatial beam combining module 22 includes a dichroic mirror 221, which is used to combine the processing lasers output from the autocollimator into a single beam.

[0039] It is understandable that setting a collimator 23 and a spatial beam combiner 22 inside the output head 2 allows lasers of multiple wavelengths to be coupled into the output head 2 through the optical fiber 12, which is beneficial for adapting to multiple operating conditions and reducing the size of the laser system. On the other hand, combined with spatial beam combiner, it is beneficial for the system to ensure high-quality laser output while increasing power.

[0040] In one embodiment of a composite laser system, the laser generator 13 is one of a continuous fiber laser generator, a quasi-continuous fiber laser generator, a pulsed fiber laser generator, a semiconductor laser generator, and an ultraviolet laser generator. This allows multiple laser generators 13 to emit lasers of different wavelengths, which are then combined inside the output head 2 to output lasers of different wavelengths, improving applicability. Lasers of different wavelengths can be output individually or simultaneously.

[0041] It is understood that the semiconductor laser generator can be any one of the following: a 915nm semiconductor laser generator, a 976nm semiconductor laser generator, a 980nm semiconductor laser generator, or a blue semiconductor laser generator.

[0042] In implementation, two laser generators 13 can be configured, namely a first laser generator and a second laser generator. The first laser generator can be one of a continuous fiber laser generator, a quasi-continuous fiber laser generator, and a pulsed fiber laser generator. The second laser generator can be one of a 915nm semiconductor laser generator, a 976nm semiconductor laser generator, a 980nm semiconductor laser generator, a blue semiconductor laser generator, and an ultraviolet laser generator.

[0043] In one embodiment of a composite laser system, multiple laser generators 13 are provided, and the system is implemented as follows:

[0044] In one embodiment, the laser generator 13 includes a first laser generator and a second laser generator, and the collimator 23 includes a first collimator and a second collimator, which are placed side by side. The spatial beam combining module 22 includes a dichroic mirror 221 and a reflector 222. The reflector 222 reflects the laser output from the first collimator to the dichroic mirror 221, and the dichroic mirror 221 reflects the laser output from the first collimator and transmits the laser output from the second collimator, so that the two laser beams are combined into one beam. The laser emitted from the first laser generator is collimated by the first collimator and then emitted to the reflector 222. The reflector 222 reflects the laser to the dichroic mirror 221, and the dichroic mirror 221 reflects and outputs the laser. The laser output from the second laser generator is collimated by the second collimator and then transmitted to the dichroic mirror 221 before being output, so that the two laser beams can be combined into one beam.

[0045] In another embodiment, the laser generator 13 includes a first laser generator and a second laser generator, the collimator 23 includes a first collimator and a second collimator, and the spatial beam combining module 22 includes a dichroic mirror 221. The dichroic mirror 221 reflects the laser output from the first collimator and transmits the laser output from the second collimator, thereby combining the two laser beams into one. The first collimator and the second collimator are arranged perpendicularly to each other. The laser output from the first laser generator is collimated by the first collimator and then reflected by the dichroic mirror 221 before being emitted. The laser output from the second laser generator is collimated by the second collimator and then transmitted through the dichroic mirror 221 before being emitted, thereby combining the two laser beams into one.

[0046] In another embodiment, the laser generator 13 includes a first laser generator, a second laser generator, and a third laser generator; the collimator 23 includes a first collimator, a second collimator, and a third collimator; and the spatial beam combining module 22 includes a first dichroic mirror and a second dichroic mirror. The first dichroic mirror reflects the laser output from the first collimator and transmits the laser output from the second collimator, combining the two laser beams into a single beam. The second dichroic mirror transmits the combined beam and reflects the laser output from the third collimator, combining the two laser beams into a single beam. The first and second collimators are arranged perpendicular to each other, and the third collimator is arranged parallel to the first collimator. The laser output from the first laser generator is collimated by the first collimator and then reflected by the first dichroic mirror. The laser output from the second laser generator is collimated by the second collimator and then transmitted by the first dichroic mirror, so that the two laser beams are combined into a single beam. The second dichroic mirror transmits the combined beam and reflects the laser output from the third collimator, so that the combined beam and the laser beam are combined into one beam.

[0047] It should be noted that, in the relevant embodiments, the reflector 222 is a plane mirror.

[0048] In one embodiment of a composite laser system, the laser 1 further includes a main control module 14 and a drive module 15. The main control module 14 is electrically connected to the drive module 15 and is used to issue commands to control the drive module 15. The drive module 15 is electrically connected to each laser generator 13 and is used to supply power to each laser generator 13 according to the commands. The main control module 14 can issue commands to control the drive module 15, and the drive module 15 supplies power to each laser generator 13 according to the commands, so that each laser generator 13 can start working or stop working.

[0049] In one embodiment of a composite laser system, the output head 2 further includes a protective lens 24, which is disposed at the light-emitting end of the dichroic mirror 221. By providing the protective lens 24, external dust can be prevented from entering the interior of the second housing 21, thereby avoiding damage to the internal components.

[0050] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0051] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A composite laser system, characterized by, Includes the laser and the output head, among which, The laser includes two or more laser generators and optical fibers corresponding to each laser generator. The laser generators are used to generate processing lasers, and each laser generator transmits the processing lasers through the optical fibers. The output head includes a spatial beam combining module and two or more collimators. The end of each optical fiber facing away from the laser generator is connected to each collimator in a corresponding manner. The collimator is used to collimate the processing laser output from the optical fiber. The spatial beam combining module is used to combine the collimated lasers emitted from each collimator into a single beam for emission.

2. The composite laser system of claim 1, wherein, Each of the optical fibers is fused to each of the collimators in a one-to-one correspondence.

3. The composite laser system of claim 1, wherein, It also includes an armored cable protection layer that covers the exterior of each of the optical fibers between the laser and the output head.

4. The composite laser system of claim 1, wherein, The spatial beam combining module includes a dichroic mirror, which is used to combine the processing lasers into one beam.

5. The composite laser system of claim 1, wherein, The laser generator is one of the following: continuous fiber laser generator, quasi-continuous fiber laser generator, pulsed fiber laser generator, semiconductor laser generator, and ultraviolet laser generator.

6. The composite laser system of claim 1, wherein, The laser also includes a main control module and a drive module. The main control module is electrically connected to the drive module and is used to issue commands to control the drive module. The drive module is electrically connected to each of the laser generators and is used to supply power to each of the laser generators according to the commands.

7. The composite laser system of claim 1, wherein, The laser generator includes a first laser generator and a second laser generator, the collimator includes a first collimator and a second collimator, and the spatial beam combining module includes a dichroic mirror. The dichroic mirror reflects the laser output from the first collimator and transmits the laser output from the second collimator, so that the two laser beams are combined into one beam.

8. The composite laser system of claim 1, wherein, The laser generator includes a first laser generator, a second laser generator, and a third laser generator. The collimator includes a first collimator, a second collimator, and a third collimator. The spatial beam combining module includes a first dichroic mirror and a second dichroic mirror. The first dichroic mirror reflects the laser output from the first collimator and transmits the laser output from the second collimator, thus combining the two laser beams into a combined beam. The second dichroic mirror transmits the combined beam and reflects the laser output from the third collimator, thus combining the two laser beams into one beam.

9. The composite laser system of claim 1, wherein, The laser generator includes a first laser generator and a second laser generator. The collimator includes a first collimator and a second collimator, which are placed side by side. The spatial beam combining module includes a dichroic mirror and a reflector. The reflector reflects the laser output from the first collimator to the dichroic mirror. The dichroic mirror reflects the laser output from the first collimator and transmits the laser output from the second collimator, so that the two laser beams are combined into one beam.

10. The composite laser system of claim 4, wherein, The output head also includes a protective lens, which is disposed at the light-emitting end of the dichroic mirror.

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