Optical fiber spot shaping device

Abstract

The utility model discloses a fiber spot shaping device, characterized in that it includes an optical fiber, a first focusing mirror, a second focusing mirror, and a laser pump source, wherein the laser pump source is connected to the optical fiber, and a plurality of the optical fibers form an array, wherein the first focusing mirror is arranged on the path of the light beam emitted by the optical fiber, and the second focusing mirror is arranged after the first focusing mirror; when the laser pump source is turned on, the optical fiber emits a light beam, and the light beam is imaged to a focus after passing through the first focusing mirror and the second focusing mirror. The beneficial effect of the utility model is that the laser rectangular spot shaping scheme adopts the pump source of the optical fiber laser as the direct output light, omitting the optical-to-optical conversion process, thereby improving the photoelectric conversion efficiency and saving energy consumption, and the optical fibers of the laser pump source are stacked along a certain axis and evenly distributed, and the end faces of each optical fiber are aligned to form a one-dimensional array.

Description

Technical Field

[0001] The utility model relates to laser spot shaping output by an optical fiber pump module, and more specifically to an optical fiber spot shaping device. Background Art

[0002] The rectangular spot output by the laser on the market is generally obtained by outputting the fiber laser through the QBH fiber, adding an integrator and a cylindrical mirror for shaping. This solution has the disadvantages of low photoelectric conversion efficiency, high cost, and large size. Utility Model Content

[0003] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a fiber spot shaping device.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fiber spot shaping device, characterized in that it includes an optical fiber, a first focusing mirror, a second focusing mirror, and a laser pump source, the laser pump source is connected to the optical fiber, a plurality of the optical fibers form an array, the first focusing mirror is arranged on the path of the light beam emitted by the optical fiber, and the second focusing mirror is arranged after the first focusing mirror; when the laser pump source is turned on, the optical fiber emits a light beam, and the light beam is imaged to a focus after passing through the first focusing mirror and the second focusing mirror.

[0005] As a further improvement of the present invention, the optical fiber is a rectangular optical fiber.

[0006] As a further improvement of the utility model, it also includes a light homogenizer, which is arranged between the optical fiber and the first focusing mirror.

[0007] As a further improvement of the utility model, there is also a first optical fiber fixing seat, and the first optical fiber fixing seat has a mounting groove, and the mounting groove is used for installing a plurality of optical fibers in a one-dimensional array.

[0008] As a further improvement of the present invention, the first optical fiber fixing seat has an entry slot, the diameter of the entry slot is larger than the installation slot, the entry slot is connected to the installation slot in an arc shape, and the installation slot has an exit slot, which is used for the optical fiber to pass through.

[0009] As a further improvement of the utility model, there is also a second optical fiber fixing seat, which is connected to the first optical fiber fixing seat, and the second optical fiber fixing seat covers the installation groove to form a through hole between the inlet and outlet of the groove.

[0010] As a further improvement of the present invention, the first optical fiber fixing seat and the second optical fiber fixing seat are made of metal.

[0011] As a further improvement of the present invention, the first focusing mirror is an X-axis focusing mirror, and the second focusing mirror is a Y-axis focusing mirror.

[0012] As a further improvement of the present invention, the first optical fiber fixing seat has a fastener, and the second optical fiber fixing seat has a buckle strip. The fastener is clamped to the buckle strip and also has a hinge. The hinge connects two hinges, and the hinges respectively connect the first optical fiber fixing seat and the second optical fiber fixing seat.

[0013] The beneficial effect of the utility model is that the laser rectangular spot shaping scheme adopts the pump source of the fiber laser as the direct output light, eliminating the optical-to-optical conversion process, thereby improving the photoelectric conversion efficiency and saving energy consumption. The optical fibers of the laser pump source are stacked along a certain axis and evenly distributed, and the end faces of each optical fiber are aligned to form a one-dimensional array. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of Y-axis imaging of a rectangular optical fiber in the first embodiment;

[0015] Figure 2 This is a schematic diagram of the X-axis imaging of a rectangular optical fiber in the first embodiment;

[0016] Figure 3 This is a schematic diagram of Y-axis imaging of the homogenizer optical fiber of the second embodiment;

[0017] Figure 4 This is a schematic diagram of X-axis imaging of the light homogenizer optical fiber of the second embodiment;

[0018] Figure 5 This is a schematic diagram of a first optical fiber fixing seat according to a third embodiment;

[0019] Figure 6 is a schematic diagram of a second fixing seat;

[0020] Figure 7 It is a fixed schematic diagram;

[0021] 1. Optical fiber; 2. First focusing mirror; 3. Second focusing mirror; 4. Laser pump source; 5. Light homogenizer; 6. First optical fiber holder; 7. Mounting slot; 8. Entrance slot; 9. Exit slot; 11. Second optical fiber holder; 12. Through hole; 13. Buckle strip; 14. Fastener; 15. Hinge; 16. Hinge; 17. First page; 18. Second page. DETAILED DESCRIPTION

[0022] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0023] Embodiment 1:

[0024] Reference Figure 1 , 2As shown, a fiber spot shaping device is characterized in that it includes an optical fiber 1, a first focusing mirror 2, a second focusing mirror 3, and a laser pump source 4, wherein the laser pump source 4 is connected to the optical fiber 1, and a plurality of the optical fibers 1 form an array, the first focusing mirror 2 is arranged on the path of the light beam emitted by the optical fiber 1, and the second focusing mirror 3 is arranged after the first focusing mirror 2; when the laser pump source 4 is turned on, the optical fiber 1 emits a light beam, and the light beam is imaged to a focus after passing through the first focusing mirror 2 and the second focusing mirror 3.

[0025] Through the above technical solution, the pump source of the fiber laser is used as the direct output light, eliminating the optical-to-optical conversion process, thereby improving the photoelectric conversion efficiency and saving energy consumption. The optical fiber 1 of the laser pump source is stacked along the X or Y axis and evenly distributed. The end faces of each optical fiber 1 are aligned to form a one-dimensional array. The light has been shaped before being emitted, and then it is shaped again through the first focusing mirror 2 and the second focusing mirror 3, and finally imaged to the focus.

[0026] As an improved specific implementation, the optical fiber 1 is a rectangular optical fiber.

[0027] Through the above technical solution, each light beam of the Y axis or X axis is repeatedly refracted in the rectangular optical fiber to form a sufficiently uniform homogenized light beam, which is then shaped by the first focusing mirror 2 and the second focusing mirror 3 to finally image the light to the focus.

[0028] Embodiment 2:

[0029] Reference Figure 3 , 4 As shown, a fiber spot shaping device is characterized in that: it includes an optical fiber 1, a first focusing mirror 2, a second focusing mirror 3, and a laser pump source 4, the laser pump source 4 is connected to the optical fiber 1, and a plurality of the optical fibers 1 form an array, the first focusing mirror 2 is arranged on the path of the light beam emitted by the optical fiber 1, and the second focusing mirror 3 is arranged after the first focusing mirror 2; the laser pump source 4 is turned on, the optical fiber 1 emits a light beam, and the light beam is imaged to a focus after passing through the first focusing mirror 2 and the second focusing mirror 3; it also includes a light homogenizer 5, and the light homogenizer 5 is arranged between the optical fiber 1 and the first focusing mirror 2.

[0030] Through the above technical solution, after adding the light homogenizer 5, the light emitted by the optical fiber 1 is further shaped by the homogenizer to make the light energy more uniform, and then further shaped by the first focusing mirror 2 and the second focusing mirror 3, and finally the light is imaged to the focus.

[0031] Embodiment three:

[0032] Reference Figure 4 , 5As shown in , 6, and 7, based on the second embodiment, the following improvements are made:

[0033] It also has a first optical fiber fixing seat 6, and the first optical fiber fixing seat 6 has a mounting groove 7, and the mounting groove 7 is used for installing a plurality of optical fibers 1 in a one-dimensional array.

[0034] Through the above technical solution, the installation groove 7 facilitates the installation and arrangement of the optical fiber 1, and the first optical fiber fixing seat 6 makes it difficult for the optical fiber 1 to shake, thereby avoiding accidents.

[0035] As an improved specific implementation, the first optical fiber fixing seat 6 has an entry slot 8, the diameter of the entry slot 8 is larger than the mounting slot 7, the entry slot 8 is connected to the mounting slot 7 in an arc shape, and the mounting slot 7 has an exit slot 9, and the exit slot 9 is used for the optical fiber 1 to pass through.

[0036] Through the above technical solution, when the diameter of the entry slot 8 is larger than the installation slot 7, it will be easier to insert a plurality of optical fibers 1. The arc connection makes it easier to gather the optical fibers 1 when inserted, and side-by-side insertion will not cause the optical fibers 1 to be disordered, while the exit slot 9 facilitates the optical fibers 1 to pass out.

[0037] As an improved specific implementation, there is also a second optical fiber fixing seat 11, which is connected to the first optical fiber fixing seat 6. The second optical fiber fixing seat 11 covers the installation groove 7 to form a through hole 12 between the entrance groove 8 and the exit groove 9.

[0038] Through the above technical solution, since the optical fiber 1 has passed through the first optical fiber fixing seat 6, and the slot of the mounting groove 7 has no fixing device, the second optical fiber fixing seat 11 is added to cover the slot of the mounting groove 7, so that the mounting groove 7 forms a through hole 12 with only the entrance slot 8 and the exit slot 9, thereby further fixing the optical fiber 1.

[0039] As an improved specific implementation, the first optical fiber fixing seat 6 and the second optical fiber fixing seat 11 are made of copper.

[0040] Through the above technical solution, the material used to make the fixing seat has increased heat dissipation effect, and the copper material is easy to obtain and is conducive to processing.

[0041] As an improved specific implementation, the first focusing mirror 2 is an X-axis focusing mirror, and the second focusing mirror 3 is a Y-axis focusing mirror.

[0042] Through the above technical solution, the X-axis focusing mirror shapes the light on the X-axis and then projects it into the Y-axis focusing mirror. The light is shaped again on the Y-axis and finally projected into the focus.

[0043] As a specific implementation of the improvement, as a further improvement of the utility model, the first optical fiber fixing seat 6 has a fastener 14, the second optical fiber fixing seat 11 has a fastener 14, the fastener 14 is clamped to the buckle strip 13, and also has a hinge 15, the hinge 15 connects the first page 17 and the second page 18, the first page 17 is welded to the first optical fiber fixing seat 6, and the second page 18 is welded to the second optical fiber fixing seat 11.

[0044] The fastening of the fasteners 14 and the fasteners 14 allows the two fixing seats to fit tightly together, and the hinges 15 and the hinges 16 further fix the fitting relationship between the two fixing seats to make them more stable.

[0045] In summary,

[0046] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A fiber spot shaping device, characterized in that: The optical fiber (1) comprises a first focusing mirror (2), a second focusing mirror (3), and a laser pump source (4), wherein the laser pump source (4) is connected to the optical fiber (1), a plurality of the optical fibers (1) form an array, the first focusing mirror (2) is arranged on the path of a light beam emitted from the optical fiber (1), and the second focusing mirror (3) is arranged behind the first focusing mirror (2); The laser pump source (4) is turned on, the optical fiber (1) emits a light beam, and the light beam is imaged to a focal point after passing through the first focusing mirror (2) and the second focusing mirror (3).

2. The optical fiber spot shaping device according to claim 1, characterized in that: The optical fiber (1) is a rectangular optical fiber.

3. The optical fiber spot shaping device according to claim 1 or 2, characterized in that: It also comprises a light homogenizer (5), wherein the light homogenizer (5) is arranged between the optical fiber (1) and the first focusing mirror (2).

4. The optical fiber spot shaping device according to claim 3, characterized in that: It also has a first optical fiber fixing seat (6), and the first optical fiber fixing seat (6) has a mounting groove (7), and the mounting groove (7) is used for installing a plurality of optical fibers (1) in a one-dimensional array.

5. The optical fiber spot shaping device according to claim 4, characterized in that: The first optical fiber fixing seat (6) has an entry slot (8), the diameter of the entry slot (8) is larger than the installation slot (7), the entry slot (8) is connected to the installation slot (7) in an arc shape, and the installation slot (7) has an exit slot (9), and the exit slot (9) is used for the optical fiber (1) to pass through.

6. The optical fiber spot shaping device according to claim 5, characterized in that: It also has a second optical fiber fixing seat (11), which is connected to the first optical fiber fixing seat (6). The second optical fiber fixing seat (11) covers the installation groove (7) to form a through hole (12) between the slot entrance (8) and the slot exit (9).

7. The optical fiber spot shaping device according to claim 6, characterized in that: The first optical fiber fixing seat (6) and the second optical fiber fixing seat (11) are made of metal.

8. The optical fiber spot shaping device according to claim 7, characterized in that: The first focusing mirror (2) is an X-axis focusing mirror, and the second focusing mirror (3) is a Y-axis focusing mirror.

9. The optical fiber spot shaping device according to claim 8, characterized in that: The first optical fiber fixing seat (6) has a fastener (14), and the second optical fiber fixing seat (11) has a buckle strip (13), and the fastener (14) is buckled with the buckle strip (13).

Images