High-power laser beam combining and shaping device

Abstract

The utility model provides a high-power laser beam combining and shaping device, which belongs to the technical field of laser and comprises a side rod, an annular cylinder is fittingly mounted at the bottom of the side rod, the outer wall of the annular cylinder is in sliding fit with a double-ring rail, a mushroom clamping column is placed on the inner side face of the annular cylinder, and the mushroom clamping column is fixedly connected with the side rod. The outer surface of the mushroom clamping column is rotationally sleeved with angle teeth, teeth of the angle teeth are meshed with an inner gear ring, the inner gear ring is embedded in an inner cavity of the double-ring rail, the coupling face is provided with a focusing piece in a matched mode, and a multimode optical fiber is placed on the side of the coupling face. The optical fiber can be directly refracted by the collimation face, subsequent shaping of the optical fiber and adaptive installation of the side rod and the annular cylinder are facilitated, the annular cylinder and the double-ring rail can continuously slide, then angle overturning of the collimation face is smoother, the final optical fiber integration effect can be differentiated by changing the wire inlet amount, and regionalized distribution of the optical fiber is achieved. And different effects can be realized conveniently.

Description

TECHNICAL FIELD

[0001] The utility model belongs to laser technology field, concretely relates to a kind of high-power laser beam shaping device. BACKGROUND

[0002] In the field of laser processing, scientific experiment and laser weapon, laser with peak power of GW or even TW order is needed, and the realization approach of high-power laser is various.Currently, the main way for laser to realize high peak power is pulse chirp amplification, but the optical structure of this technology is huge and complex, and the cost is high.Laser beam combining is one of the effective technical approaches to realize high-power and high-beam-quality laser.

[0003] In the prior art, for example, the device for adjusting the beam combination of a high-power semiconductor laser linear array in application No.201620066767.9 includes a fast-axis collimating plano-convex cylindrical lens, a misaligned shaping stack, a rearranged shaping stack and a slow-axis collimating plano-convex cylindrical lens array.

[0004] In the above, the adjustment of the beam combination of the semiconductor laser linear array is basically realized by optimizing the size and angle and rearranging the shaping, but it is known from the reading of the technical solution that the structure for refracting the optical fiber in the rearranged shaping stack is a parallelogram glass sheet, and the actual effect of refraction is not good, mainly manifested in that the divergence angle of the light beam increases, the spot shape is irregular and the power density distribution is uneven, which will affect the actual application effect of the laser. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a kind of high-power laser beam shaping device, to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical scheme: including dot matrix light source, the placement of dot matrix light source has collimating surface, collimating surface is equipped with angle-changing part and coupling surface, angle-changing part includes the side rod installed with collimating surface surface, the bottom of side rod is adaptively installed with annular cylinder column, the outer wall of annular cylinder column is slidably fitted with double-ring rail, and the inner side surface of annular cylinder column is placed with mushroom column, the outer surface of mushroom column is rotatably sleeved with angular tooth, the angular tooth is engaged with the inner gear ring, the inner gear ring is embedded in the inner cavity of double-ring rail, the coupling surface is equipped with focusing part, and the side of coupling surface is placed with multimode optical fiber.

[0007] As a preferred scheme of the utility model, the focusing part includes spring adaptively installed on the bottom surface of coupling surface, the end surface of spring is provided with outer circular ring, the inner side of outer circular ring is rotatably fitted with arched seat, and the bottom of arched seat is provided with straight plate.

[0008] As a preferred scheme of the utility model, the side surface of the straight plate is provided with a shaft rod, a triangular base is rotationally sleeved on the outer surface of the shaft rod, and a ladder frame is adaptively installed on the top of the triangular base.

[0009] As a preferred scheme of the utility model, the focusing member further comprises a movable block in clamped connection with the ladder frame, a lightweight spiral spring is arranged on the end surface of the movable block, a supporting block is installed on the end of the lightweight spiral spring away from the movable block, and the supporting block is provided with a spring on one side.

[0010] As a preferred scheme of the utility model, the lower surface of the coupling surface is provided with a sliding block, and the bottom of the sliding block is in sliding cooperation with the straight plate.

[0011] As a preferred scheme of the utility model, the lower surface of the multi-mode optical fiber is coated with a heat sink block, and the arrangement mode of the heat sink block is equidistant arrangement.

[0012] As a preferred scheme of the utility model, the surface of the double-ring rail is adaptively provided with a flat panel, the number of the flat panels is several groups, and the distribution mode of the several groups of flat panels is equidistant arrangement.

[0013] As a preferred scheme of the utility model, the side surface of the dot matrix light source is adaptively provided with an embedded seat, and the side surface of the embedded seat is provided with an L-shaped base.

[0014] Compared with the prior art, the utility model has the beneficial effects that: through the cooperation of the dot matrix power supply and the collimating surface, the optical fiber can be directly refracted by the collimating surface, which facilitates subsequent shaping of the optical fiber, the adaptive installation of the side rod and the annular cylinder allows the annular cylinder to continuously slide with the double-ring rail, which further allows the angle of the collimating surface to turn more smoothly, the amount of incoming line can be changed to differentiate the final optical fiber integration effect, realize regional distribution of the optical fiber, facilitate realization of different effects, and through the rotation of the mushroom clamping column and the angle tooth, the angle tooth and the inner tooth ring are indirectly meshed, the rotation of the collimating surface realizes the effect of intermittent adjustment, which can be used for quantitative refraction of the optical fiber, facilitates subsequent integration, and the cooperation of the coupling surface and the focusing member and the multi-mode optical fiber allows the optical fiber with excessively large divergence angle to be directly filtered, and the remaining optical fiber can be further refracted in the multi-mode optical fiber. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the drawings needed in the embodiment description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can obtain other drawings according to these drawings without creating creative labor.

[0016] Figure 1The overall structure schematic view of the utility model;

[0017] Figure 2 The side view structure schematic view of all parts in the utility model;

[0018] Figure 3 The structure schematic view of the related parts for realizing the optical fiber refraction angle adjustment effect in the utility model;

[0019] Figure 4 The utility model Figure 3 A part of the utility model is enlarged view;

[0020] Figure 5 The structure schematic view of the related parts for realizing the coupling surface distance adjustment effect in the utility model;

[0021] Figure 6 The structure schematic view of the related parts for realizing the coupling surface bottom stability effect in the utility model.

[0022] In the drawing: 1, L-shaped base;2, dot matrix light source;3, built-in seat;4, collimating surface;5, angle changing part;51, side rod;52, annular cylinder;53, double ring rail;54, flat panel;55, mushroom card column;56, angle tooth;57, inner tooth ring;6, coupling surface;7, focusing part;71, spring;72, outer ring;73, arched seat;74, support block;75, light spiral spring;76, movable block;77, ladder frame;78, triangular base;79, shaft;8, sliding block;9, straight plate;10, multimode optical fiber;11, heat sink block. Specific implementation

[0023] In order to make the purpose, technical scheme and advantage of the utility model embodiment clearer, the technical scheme in the utility model embodiment will be clearly and completely explained below in combination with the drawings in the utility model embodiment, obviously, the described embodiment is a part of the embodiment of the utility model, rather than all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without creative labor are within the protection scope of the utility model.

[0024] The utility model embodiment proposes a kind of high-power laser beam shaping device, including dot matrix light source 2;Exemplarily, as shown in Figures 1-3

[0025] ​The dot matrix light source 2 is placed with a collimating surface 4, which is matched with an angle changing part 5 and a coupling surface 6, the angle changing part 5 comprises a side rod 51 mounted on the surface of the collimating surface 4, the bottom of the side rod 51 is adaptively mounted with a ring cylinder 52, the outer wall of the ring cylinder 52 is slidingly matched with a double ring rail 53, and the inner side of the ring cylinder 52 is placed with a mushroom clamping column 55, the outer surface of the mushroom clamping column 55 is rotatably sleeved with an angular tooth 56, the teeth of the angular tooth 56 are engaged with an inner gear ring 57, the inner gear ring 57 is embedded in the inner cavity of the double ring rail 53, the coupling surface 6 is matched with a focusing part 7, and the side of the coupling surface 6 is placed with a multimode optical fiber 10.

[0026] The focusing part 7 comprises a spring 71 adaptively mounted on the bottom surface of the coupling surface 6, the end surface of the spring 71 is provided with an outer circular ring 72, the inner side of the outer circular ring 72 is rotatably matched with an arch-shaped seat 73, and the bottom of the arch-shaped seat 73 is provided with a straight plate 9.

[0027] The side surface of the straight plate 9 is provided with a shaft 79, the outer surface of the shaft 79 is rotatably sleeved with a triangular base 78, and the top of the triangular base 78 is adaptively mounted with a ladder frame 77.

[0028] Specifically, through the matching of the dot matrix light source 2 and the collimating surface 4, the optical fiber can be directly refracted by the collimating surface 4, which facilitates the subsequent shaping of the optical fiber, the adaptive mounting of the side rod 51 and the ring cylinder 52 can make the ring cylinder 52 and the double ring rail 53 continuously slide, and then make the angle turning of the collimating surface 4 more smoothly, the final optical fiber integration effect can be differentiated by changing the incoming line amount, the regional distribution of the optical fiber can be realized, different effects can be realized, and through the rotatable sleeve of the mushroom clamping column 55 and the angular tooth 56, the indirect engagement between the angular tooth 56 and the inner gear ring 57 is realized, the rotation of the collimating surface 4 realizes the effect of intermittent adjustment, which can be used for quantitative refraction of the optical fiber, which is convenient for subsequent integration, at the same time, the matching of the coupling surface 6, the focusing part 7 and the multimode optical fiber 10 makes the optical fiber with too large divergence angle be directly filtered, and the remaining optical fiber can be further refracted in the multimode optical fiber 10.

[0029] Through the matching of the spring 71 and the outer circular ring 72, when the coupling surface 6 is displaced, the side surface is elastically supported by the spring 71, the rotatable matching of the arch-shaped seat 73 and the outer circular ring 72 makes the counter thrust generated after the spring 71 is pushed by the coupling surface 6 be directly offset by the rotating force, avoiding the self-sliding displacement of the spring 71, the rotatable sleeve of the triangular base 78, the ladder frame 77 and the shaft 79 makes the spring 71 be supported during the pushing process, the displacement of the coupling surface 6 is more stable, and finally the distribution of the optical fiber is changed.

[0030] The focusing part 7 further comprises a movable block 76 which is clamped with the ladder frame 77; for example, as shown in Figures 2-4 .

[0031] The end face of the movable block 76 is provided with a light spiral spring 75, one end of the light spiral spring 75 is provided with a supporting block 74, and one side of the supporting block 74 is provided with a spring 71.

[0032] The lower surface of the coupling surface 6 is provided with a sliding block 8, and the bottom of the sliding block 8 is in sliding fit with a straight plate 9.

[0033] Specifically, through the cooperation of the movable block 76 and the light spiral spring 75, the supporting block 74 is clamped and limited, the spring 71 is clamped and fixed, the displacement movement of the coupling surface 6 is immediately stopped, and the fixed distance refraction requirement of the optical fiber can be met.

[0034] Through the sliding fit of the sliding block 8 and the straight plate 9, the coupling surface 6 can realize active displacement, and the refraction distance of the optical fiber can be directly adjusted, which is beneficial to the subsequent light spot distribution.

[0035] The lower surface of the multi-mode optical fiber 10 is covered with a heat sink block 11. Figures 3-6

[0036] The arrangement mode of the heat sink block 11 is equidistant arrangement.

[0037] The surface of the double-ring rail 53 is adapted to be provided with a flat panel 54, the number of the flat panel 54 and the double-ring rail 53 is several groups, and the distribution mode of the several groups of flat panels 54 is equidistant arrangement.

[0038] The side surface of the dot matrix light source 2 is adapted to be provided with an embedded seat 3, and the side surface of the embedded seat 3 is provided with an L-shaped base 1.

[0039] Specifically, through the covering of the heat sink block 11 and the multi-mode optical fiber 10, when the optical fiber contacts the heat sink block 11, heat will be generated, thereby realizing the temperature step difference of the optical fiber, and finally completing the difference of the refractive index.

[0040] Working principle: first, turn on the dot matrix light source 2, after the emitted optical fiber is refracted by the collimating surface 4, it is further refracted by the coupling surface 6, and finally contacts the multi-mode optical fiber 10, and the light spot realizes the distribution in different regions through the heat adjustment of the heat sink block 11.

[0041] ​In order to obtain this area distribution, the optical fiber needs to be integrated, wherein when the optical fiber is refracted by the collimating surface 4, the angle tooth 56 is allowed to intermittently engage with the inner gear ring 57 by rotating the side rod 51 and taking the mushroom card column 55 as the center, so that the angle of the collimating surface 4 can be changed, and then when the optical fiber propagates on the surface of the coupling surface 6, the slider 8 at the bottom is pushed, so that the coupling surface 6 pushes the spring 71, the end surface of the spring 71 drives the outer ring 72 and the arcuate seat 73 to rotate, which is used to offset the horizontal displacement of the spring 71 generated by the pushing, and then the support block 74 on the side of the spring 71 pushes the light spiral spring 75, the movable block 76 and the ladder frame 77 to complete the movable clamping, so as to adjust the refractive distance of the optical fiber. The device is properly improved for the optical fiber passage, and has strong practicability.

[0042] Importantly, it should be noted that the constructions and arrangements of the present application shown in the various exemplary embodiments are illustrative only. Although only a few embodiments have been described in detail in this disclosure, many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters, mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter described in this application. For example, elements shown as integrally formed can be constructed of multiple parts or elements, the position of elements can be reversed or otherwise varied, and the nature or number of elements or positions can be altered or varied. Accordingly, all such variations are intended to be included within the scope of the present application. The order or sequence of any process or method steps can be changed, or reordered. Any "means plus function" clauses are intended to cover the structures described herein as performing the recited functions and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes, and omissions can be made in the design, operating conditions, and arrangement of the exemplary embodiments without departing from the scope of the present application. Accordingly, the present application is not limited to the particular embodiments described and illustrated herein, but extends to equivalents of which the skilled artisan has knowledge of based on this disclosure.

[0043] Furthermore, well-known elements of exemplary embodiments can not be described in detail or can be omitted in order to avoid obscuring the present application. Additionally, the elements and components of described embodiments can be arranged and designed in a wide variety of different configurations, all of which are contemplated herein.

[0044] It is understood that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions can be made. Such development efforts can be complex and time-consuming, but would be a routine undertaking for those of ordinary skill in the art having the benefit of this disclosure.

[0045] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, and they should be covered in the scope of the claims of the present application.

Claims

1. A high-power laser beam combining and shaping device, characterized in that: The application relates to a dot matrix light source (2) which is provided with a collimating surface (4), the collimating surface (4) is provided with a variable-angle part (5) and a coupling surface (6), the variable-angle part (5) comprises a side rod (51) which is surface-mounted on the collimating surface (4), the bottom of the side rod (51) is provided with a ring-shaped cylinder (52), the outer wall of the ring-shaped cylinder (52) is slidingly provided with a double-ring rail (53), the inner side of the ring-shaped cylinder (52) is provided with a mushroom-shaped clamping column (55), the outer surface of the mushroom-shaped clamping column (55) is rotatably provided with a bevel gear (56), the gear teeth of the bevel gear (56) are meshed with an inner gear ring (57), the inner gear ring (57) is inlaid in the inner cavity of the double-ring rail (53), the coupling surface (6) is provided with a focusing part (7), and the side of the coupling surface (6) is provided with a multimode optical fiber (10).

2. The device of claim 1, wherein: The focusing part (7) comprises a spring (71) which is surface-mounted on the bottom surface of the coupling surface (6), the end surface of the spring (71) is provided with an outer circular ring (72), the inner side of the outer circular ring (72) is rotatably provided with an arched seat (73), and the bottom of the arched seat (73) is provided with a straight plate (9).

3. The device of claim 2, wherein: The side surface of the straight plate (9) is provided with a shaft rod (79), the outer surface of the shaft rod (79) is rotatably provided with a triangular base (78), and the top of the triangular base (78) is surface-mounted with a ladder frame (77).

4. The device of claim 2, wherein: The focusing part (7) further comprises a movable block (76) which is surface-mounted on the ladder frame (77), the end surface of the movable block (76) is provided with a light-weight spiral spring (75), one end of the light-weight spiral spring (75) away from the movable block (76) is surface-mounted with a supporting block (74), and one side of the supporting block (74) is surface-mounted with the spring (71).

5. The device of claim 1, wherein: The lower surface of the coupling surface (6) is provided with a sliding block (8), and the bottom of the sliding block (8) is slidingly provided with the straight plate (9).

6. The device of claim 1, wherein: The lower surface of the multimode optical fiber (10) is covered with a heat sink block (11), and the heat sink block (11) is arranged in an equidistant manner.

7. The device of claim 1, wherein: The surface of the double-ring rail (53) is surface-mounted with a flat panel (54), the number of the flat panels (54) is several groups, and the several groups of flat panels (54) are arranged in an equidistant manner.

8. The device of claim 1, wherein: The side surface of the dot matrix light source (2) is surface-mounted with an embedded seat (3), and the side surface of the embedded seat (3) is provided with an L-shaped base (1).

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