CN217036298U - Multi-light-source fiber laser - Google Patents

Abstract

The utility model relates to a multi-light-source fiber laser, which comprises a base, an installation bottom plate and a lens seat, wherein the installation bottom plate and the lens seat are arranged above the base; the lens seat is positioned in front of the mounting base plate, and a laser mounting seat and a reflector seat are arranged on the mounting base plate; the base is also provided with an outer cover, and the outer cover is arranged on the periphery of the mounting bottom plate; an upper cover plate is arranged above the outer cover, and a driving circuit board is arranged above the upper cover plate; the multi-light-source optical fiber laser can converge light emitted by a plurality of lasers by arranging the lasers, the plane reflector and the aspheric lens, and then the light is transmitted into an optical fiber for transmission; and the plane reflector sets up on the reflector seat, and the reflector seat can carry out multidimension through four screws and adjust a plurality of lasers back has been installed, through the angle of reflection of adjusting the plane reflector, adjusts multichannel laser, is favorable to improving the effect of assembling of the laser that multichannel laser sent.

Description

Multi-light-source optical fiber laser

Technical Field

The utility model belongs to the technical field of fiber lasers, and particularly relates to a multi-light-source fiber laser.

Background

The Fiber Laser (Fiber Laser) refers to a Laser using rare earth element doped glass Fiber as a gain medium, and can be developed on the basis of a Fiber amplifier: under the action of pump light, high power density is easily formed in the optical fiber, so that the population inversion of the laser energy level of the laser working substance is caused, and when a positive feedback loop (forming a resonant cavity) is properly added, laser oscillation output can be formed.

Fiber lasers have a wide range of applications including laser fiber communication, laser space telecommunications, industrial shipbuilding, automotive manufacturing, laser engraving laser marking laser cutting, printing and rolling, metal and nonmetal drilling/cutting/welding (brazing, quenching, cladding and deep welding), military and national defense security, medical instruments and equipment, large infrastructure, as pumping sources for other lasers, and the like.

With the continuous development of fiber lasers, multi-source fiber lasers appear, but the existing multi-source fiber lasers have the defects of poor multi-source positioning accuracy, high difficulty in adjusting light emitted by multiple sources and poor structural stability.

Disclosure of Invention

The fiber laser aims to solve the problems of poor positioning accuracy, high difficulty in adjusting light emitted by multiple light sources and poor structural stability of the existing multi-light-source fiber laser.

The utility model relates to a multi-light-source fiber laser, which comprises a base, a mounting bottom plate and a lens seat, wherein the mounting bottom plate and the lens seat are arranged above the base; the lens seat is positioned in front of the mounting base plate, and the laser mounting seat and the reflector seat are arranged on the mounting base plate; the base is also provided with an outer cover, and the outer cover is arranged on the periphery of the mounting bottom plate; an upper cover plate is arranged above the outer cover, and a driving circuit board is arranged above the upper cover plate.

Furthermore, the reflector base comprises an adjusting base and a reflector mounting plate arranged above the adjusting base, a plane reflector and a photosensitive sensor are arranged on the reflector mounting plate, the plane reflector is positioned in front of the photosensitive sensor, and an included angle between the plane reflector and light emitted by a laser arranged on the laser mounting base is 45 degrees; and four screw mounting holes are formed in the reflector mounting plate.

Further, a radial screw adjusting seat (24) is arranged on the side surface of the adjusting base (13).

Furthermore, a radial adjusting screw mounting hole (23) is formed in the right side surface of the mounting bottom plate (2).

Further, the number of the lasers arranged on the laser installation seats is the same as that of the laser installation seats.

Furthermore, the laser installation seats are provided with a plurality of installation seats, and the installation seats are sequentially close to one side provided with the laser installation seats from front to back.

Furthermore, an optical fiber fixing component is arranged in front of the lens seat.

Furthermore, a switching circuit board is arranged behind the base and is positioned behind the outer cover.

Furthermore, a side transfer plate is arranged on the left of the laser installation seat.

The utility model has the beneficial effects that: according to the multi-light-source fiber laser, the plurality of lasers, the plane reflector and the aspheric lens are arranged, so that light emitted by the plurality of lasers can be converged and then spread into the optical fiber for spreading; and the plane reflector sets up on the reflector seat, and the reflector seat can carry out multidimension through four screws and adjust a plurality of lasers back has been installed, through the angle of reflection of adjusting the plane reflector, adjusts multichannel laser, is favorable to improving the effect of assembling of the laser that multichannel laser sent.

The present invention will be described in further detail with reference to examples.

Drawings

Fig. 1 is a schematic diagram of a multi-source fiber laser assembly.

Fig. 2 is a schematic top cross-sectional view of a multi-source fiber laser.

Fig. 3 is a structural diagram of the right side surface of the multi-light source fiber laser.

Fig. 4 is a schematic structural view of the reflector base.

FIG. 5 is a schematic top view of the reflector base.

FIG. 6 is a schematic diagram of a right side structure of the reflector base.

Fig. 7 is a schematic diagram of a laser driving circuit.

In the figure: 1. a base; 2. mounting a bottom plate; 3. a lens holder; 4. a laser mount; 5. a mirror base; 6. a housing; 7. an upper cover plate; 8. a laser; 9. a drive circuit board; 10. an optical fiber fixing component; 11. switching the circuit board; 12. a side transfer plate; 13. adjusting the base; 14. a mirror mounting plate; 15. a planar mirror; 16. a light-sensitive sensor; 17. a lens; 18. an optical fiber; 19. a screw mounting hole; 20. mounting screws; 21. installing a clamping groove; 22. a precise positioning seat; 23. a radial adjusting screw mounting hole; 24. radial screw adjustment seat.

Detailed Description

To further explain the technical means and effects of the present invention adopted to achieve the intended purpose, the following detailed description of the embodiments, structural features and effects of the present invention will be made with reference to the accompanying drawings and examples.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "aligned", "overlapping", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of the present invention, "a plurality" means two or more unless otherwise specified.

Example 1

The embodiment provides a multi-light-source fiber laser as shown in fig. 1 to 7, which comprises a base 1, a mounting bottom plate 2 and a lens seat 3, wherein the mounting bottom plate 2 and the lens seat 3 are arranged above the base 1, and the mounting bottom plate 2 is provided with mounting through holes at four corners and is fixed on the base 1 by four screws; the lens seat 3 is positioned in front of the mounting base plate 2, a lens 17 is arranged in the lens seat 3, a convergence point of the lens 17 corresponds to an optical fiber incidence point of an optical fiber 18, a laser mounting base 4 and a reflector base 5 are arranged on the mounting base plate 2, the laser mounting base 4 is positioned on the left side of the reflector base 5, light emitted by a plurality of paths of lasers 8 mounted on the laser mounting base 4 corresponds to a planar reflector 15 arranged on the reflector base 5, and the planar reflector 15 can reflect the light emitted by the lasers 8 by 90 degrees; the base 1 is also provided with an outer cover 6, the outer cover 6 is arranged on the periphery of the mounting bottom plate 2, and the outer cover 6 is provided with mounting through holes through four corners and is fixed on the base 1 through screws; an installation clamping groove 21 of the lens holder 3 is reserved in front of the outer cover 6, and the lens holder 3 can be further fixed through the installation clamping groove 21; an upper cover plate 7 is arranged above the outer cover 6, specifically, the outer cover 6 is provided with 6 connecting holes of the upper cover plate 7, and the upper cover plate 7 is fixedly connected with the outer cover 6 through screws; a driving circuit board 9 is arranged above the upper cover plate 7, and a driving circuit of a laser is arranged in the driving circuit board 9, as shown in fig. 7, the driving circuit of one laser is shown.

Further, as shown in fig. 4 and 5, the reflector holder 5 includes an adjusting base 13 having an elastic supporting function, and a reflector mounting plate 14 disposed above the adjusting base 13, wherein a planar reflector 15 and a photosensitive sensor 16 are disposed on the reflector mounting plate 14, the planar reflector 15 is located in front of the photosensitive sensor 16, and an included angle between the planar reflector 15 and a light beam emitted by a laser mounted on the laser mounting holder 4 is 45 °; the reflector mounting plate 14 is provided with four screw mounting holes 19, and the four screw mounting holes 19 are internally provided with one mounting screw 20 respectively, so that when the reflector mounting plate is applied, the reflector base 5 can be flexibly subjected to multi-dimensional fine adjustment by adjusting the tightness degree of the four mounting screws 20, light emitted by each laser 8 can be in the best emission effect, and can be converged on the lens 17 at the optimal incident angle, and the effect of the laser entering the optical fiber 18 is improved; moreover, the adjustment is not limited to times, and each reflector seat 5 can be finely adjusted only by opening the upper cover plate 7, so that the adjustment is very convenient.

Further, as shown in fig. 3 and 6, two radial screw adjusting seats 24 are arranged on the side surface of the adjusting base 13; the right side surface of the mounting base plate 2 is provided with a plurality of radial adjusting screw mounting holes 23, specifically, the radial adjusting screw mounting holes 23 correspond to the radial screw adjusting seats 24 one by one, that is, the right side surface of each adjusting base 13 is provided with two radial screw adjusting seats 24, and the number of the radial adjusting screw mounting holes 23 is 2 times that of the adjusting bases 13; like this, every regulation base 13 can be fixed through two radial adjusting screw, when needs rotatory reflector base 5, just can be through adjusting two radial adjusting screw for produce the clearance between radial adjusting screw and the radial screw regulation seat 24, then rotate the fine setting to reflector base 5, the rotation range uses radial adjusting screw not thoroughly to leave radial screw regulation seat 24 as the control range, and preferential radial adjusting screw can be M2 5 screw.

Like this, the horizontal degree of 360 regulation reflector seats 5 on the horizontal plane that four mounting screws 20 can be in, two radial adjusting screw can be adjusting reflector seats 5's horizontal rotation angle, and each reflector seat 5 can all adjust the horizontal degree alone and finely tune the rotation degree, like this, just can make a plurality of reflector seats 5 can both reach the best reflection effect, thereby make the laser that multichannel laser instrument 8 sent reach the best effect of assembling.

Furthermore, the number of the lasers 8 arranged on the laser installation base 4 is the same as that of the laser installation bases 4, so that it can be ensured that light emitted by each laser 8 is reflected by the planar reflective mirror 15 arranged on the laser installation base 4 to enter the lens 17 in the lens base 3, and then enters the optical fiber 18 after being converged by the lens 17.

Furthermore, be provided with a plurality ofly on laser installation seat 4 to a plurality of laser installation seats 4 are close to the one side that is provided with laser installation seat 4 in proper order from the past backward, can ensure that the laser homoenergetic of each laser instrument 8 can pass through the reflection of plane mirror 15.

Furthermore, an optical fiber fixing component 10 is arranged in front of the lens base 3, the optical fiber fixing component 10 is fixedly connected with the lens base 3 through screws, and a precise positioning seat 22 is arranged between the optical fiber fixing component 10 and the lens base 3, so that precise connection can be realized, and the stability, reliability and sealing performance of a connection position are enhanced; the precision positioning stand 22 is used after precision machining and precision adjustment.

Further, a switching circuit board 11 is further arranged behind the base 1, the switching circuit board 11 is located behind the outer cover 6, and the switching circuit board 11 is convenient for connecting a device for remotely controlling the multi-light-source fiber laser and is beneficial to expanding the use environment and functions of the multi-light-source fiber laser.

Further, the laser 8 may use a high-power multimode semiconductor green laser tube as a light source.

Further, a side transfer plate 12 is further arranged on the left side of the laser installation seat 4, and the side transfer plate 12 is convenient for uniformly connecting the input ends of the multiple paths of lasers 8 and then is connected with a driving circuit.

It should be noted that the multi-path laser shown in fig. 1 and fig. 2 is a laser provided with four lasers, and in practical application, the multi-path laser is not limited to be provided with four lasers, and 2, 3, 5, 6, 7, 8 or more lasers may be provided.

In summary, in the multi-light-source fiber laser, by arranging the plurality of lasers 8, the planar reflector 15 and the aspheric lens 17, light emitted by the plurality of lasers 8 can be converged and then transmitted into the optical fiber 18 for transmission; and the plane reflector 15 sets up on the reflector seat 5, and the reflector seat 5 can carry out multidimension regulation through four screws, can be after installing a plurality of lasers, through the angle of reflection of adjusting plane reflector 15, adjusts the laser that multichannel laser 8 sent, is favorable to improving the effect of assembling of the laser that multichannel laser sent.

The foregoing is a further detailed description of the utility model in connection with specific preferred embodiments and it is not intended to limit the utility model to the specific embodiments described. For those skilled in the art to which the utility model pertains, numerous simple deductions or substitutions may be made without departing from the spirit of the utility model, which shall be deemed to belong to the scope of the utility model.

Claims (9)

1. A multi-source fiber laser characterized by: comprises a base (1), a mounting bottom plate (2) and a lens seat (3) which are arranged above the base (1); the lens seat (3) is positioned in front of the mounting base plate (2), and the laser mounting seat (4) and the reflector seat (5) are arranged on the mounting base plate (2); the base (1) is also provided with an outer cover (6), and the outer cover (6) is arranged on the periphery of the mounting bottom plate (2); an upper cover plate (7) is arranged above the outer cover (6), and a driving circuit board (9) is arranged above the upper cover plate (7).

2. A multi-source fiber laser as claimed in claim 1, wherein: the reflector seat (5) comprises an adjusting base (13) and a reflector mounting plate (14) arranged above the adjusting base (13), a plane reflector (15) and a photosensitive sensor (16) are arranged on the reflector mounting plate (14), the plane reflector (15) is positioned in front of the photosensitive sensor (16), and an included angle between the plane reflector (15) and light emitted by a laser arranged on the laser mounting seat (4) is 45 degrees; the reflector mounting plate (14) is provided with four screw mounting holes (19).

3. A multi-source fiber laser as claimed in claim 2, wherein: and a radial screw adjusting seat (24) is arranged on the side surface of the adjusting base (13).

4. A multi-source fiber laser as claimed in claim 1, wherein: and a radial adjusting screw mounting hole (23) is formed in the right side surface of the mounting bottom plate (2).

5. A multi-source fiber laser as claimed in claim 1, wherein: the number of the lasers (8) arranged on the laser installation seat (4) is the same as that of the laser installation seat (4).

6. A multi-source fiber laser as claimed in claim 1, wherein: the laser installation seats (4) are provided with a plurality of laser installation seats, and the laser installation seats (4) are sequentially close to one side provided with the laser installation seats (4) from front to back.

7. A multi-source fiber laser as claimed in claim 1, wherein: an optical fiber fixing component (10) is arranged in front of the lens seat (3).

8. A multi-source fiber laser as claimed in claim 1, wherein: a switching circuit board (11) is further arranged behind the base (1), and the switching circuit board (11) is located behind the outer cover (6).

9. A multi-source fiber laser as claimed in claim 1, wherein: and a side transfer plate (12) is also arranged on the left of the laser mounting seat (4).

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