Optical fiber beam combiner

Abstract

The utility model discloses an optical fiber beam combiner, which belongs to the technical field of optics and comprises a tapering sleeve, a group of optical fibers are sleeved in the tapering sleeve, a heat absorption copper sleeve is sleeved on the outer surface of the group of optical fibers, and the outer surface of the heat absorption copper sleeve is fixedly connected with the inner wall of the tapering sleeve. A set of aluminum cooling fins arranged at equal intervals are fixedly embedded in the outer surface of the tapering sleeve, the inner wall of each aluminum cooling fin is fixedly connected with the upper surface of a heat absorption copper sleeve, a protective shell is fixedly connected to the outer surface of the tapering sleeve, the optical fiber can be effectively wrapped through the arranged tapering sleeve made of ceramic materials and the optical fiber, and therefore the heat dissipation efficiency of the optical fiber is improved. The optical fiber beam combiner is compact in structure, facilitates improvement of high-efficiency power output of the optical fibers, can absorb and conduct heat generated by the optical fibers through the heat absorption copper sleeves, the aluminum cooling fins, the cooling windows and the cooling holes, prevents the optical fibers from being damaged by high temperature, prolongs the service life of the optical fibers, and facilitates effective use of the optical fiber beam combiner.

Description

Technical Field

[0001] The utility model relates to the technical field of optics, in particular to an optical fiber combiner. Background Art

[0002] A fiber combiner is a fiber connection device that uses precision fiber fusion splicing technology to maximize the coupling of the light energy output by the transmitting fiber into the receiving fiber, and minimize the impact on the system caused by its involvement in the optical path. A fiber combiner is an important component in a fiber laser system. Its quality not only directly determines the power and beam quality of the fiber laser, but also serves as an important guarantee for the safe and stable operation of the laser.

[0003] A Chinese patent with publication number CN208621785U discloses a fiber optic combiner. However, the above patent still has certain deficiencies when used. The fiber optic combiner does not have the function of auxiliary heat dissipation during use. When the optical fiber transmits light energy, a certain amount of energy will be lost. This energy will be converted into heat, thereby causing high-temperature damage to the optical fiber, which is not conducive to the safe, stable and long-life use of the optical fiber. Therefore, those skilled in the art provide a fiber optic combiner to solve the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the present invention is to provide a fiber optic combiner to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A fiber combiner comprises a tapered sleeve, wherein a group of optical fibers are sheathed inside the tapered sleeve, and the outer surface of the group of optical fibers is sheathed with a heat-absorbing copper sleeve, the outer surface of the heat-absorbing copper sleeve is fixedly connected to the inner wall of the tapered sleeve, and the outer surface of the tapered sleeve is fixedly inlaid with a group of equidistantly arranged aluminum heat sinks, the inner wall of each of the aluminum heat sinks is fixedly connected to the upper surface of the heat-absorbing copper sleeve, and the outer surface of the tapered sleeve is fixedly connected to a protective shell, and the front and back sides of the protective shell are fixedly inlaid with heat dissipation windows.

[0007] As a further solution of the present invention: the tapered sleeve is made of ceramic material.

[0008] As a further solution of the present invention: a clip-on strip is fixedly connected to the bottom surface of the protective shell, and the clip-on strip is located in the middle of the protective shell.

[0009] As a further solution of the present invention: a maintenance cover is fixedly connected to the upper surface of the protective shell by two groups of mounting screws, and the maintenance cover is made of plastic.

[0010] As a further solution of the present invention: a model mark is fixedly connected to the upper surface of the maintenance cover, and the model mark is located in the middle of the maintenance cover.

[0011] As a further solution of the present invention: a group of heat dissipation holes are opened on the upper surface of the maintenance cover.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] This fiber combiner can effectively wrap the optical fiber through the ceramic tapered sleeve and optical fiber, and has a compact structure, which is convenient for improving the efficient power output of the optical fiber. The heat-absorbing copper sleeve, aluminum heat sink, heat dissipation window and heat dissipation hole are provided to absorb and conduct the heat generated by the optical fiber, thereby preventing the optical fiber from being damaged by high temperature, thereby increasing the service life of the optical fiber and facilitating the effective use of this fiber combiner. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 Schematic diagram of the overall three-dimensional structure of a fiber combiner;

[0015] Figure 2 A rear view of a maintenance cover in a fiber optic combiner;

[0016] Figure 3 A schematic diagram of the internal dissection structure of a tapered sleeve in a fiber combiner;

[0017] Figure 4 This is a cross-sectional view of a top view of a maintenance cover in a fiber optic combiner.

[0018] In the figure: 1. Tapered sleeve; 2. Optical fiber; 3. Protective shell; 4. Maintenance cover; 5. Heat dissipation hole; 6. Model label; 7. Heat dissipation window; 8. Aluminum heat sink; 9. Heat-absorbing copper sleeve; 10. Mounting strip. DETAILED DESCRIPTION

[0019] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0020] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0021] See also Figures 1 to 4 In an embodiment of the utility model, an optical fiber combiner includes a tapered sleeve 1, and a group of optical fibers 2 are sheathed inside the tapered sleeve 1. The tapered sleeve 1 can be used to wrap and reflect the optical fibers 2, which is convenient for high-power transmission of the optical fibers 2. The outer surface of a group of optical fibers 2 is sheathed with a heat-absorbing copper sleeve 9, and the outer surface of the heat-absorbing copper sleeve 9 is fixedly connected to the inner wall of the tapered sleeve 1. A group of equidistantly arranged aluminum heat sinks 8 are fixedly inlaid on the outer surface of the tapered sleeve 1, and the inner wall of each aluminum heat sink 8 is fixedly connected to the upper surface of the heat-absorbing copper sleeve 9. The heat inside the tapered sleeve 1 is absorbed and conducted by the heat-absorbing copper sleeve 9 and the aluminum heat sink 8, which is convenient for heat dissipation and cooling of the optical fibers 2. A protective shell 3 is fixedly connected to the outer surface of the tapered sleeve 1, and a heat dissipation window 7 is fixedly inlaid on the front and back of the protective shell 3.

[0022] The tapered sleeve 1 is made of ceramic material and can wrap and reflect the optical fiber 2, which is convenient for high-power transmission of the optical fiber 2. The bottom surface of the protective shell 3 is fixedly connected with a card strip 10, which is located in the middle of the protective shell 3. The protective shell 3 can be carded and placed through the card strip 10, which is convenient for the installation of this optical fiber combiner.

[0023] The upper surface of the protective shell 3 is fixedly connected to a maintenance cover 4 by two sets of mounting screws. The maintenance cover 4 is made of plastic and can be easily opened to facilitate maintenance operations on the optical fiber combiner. The upper surface of the maintenance cover 4 is fixedly connected to a model mark 6. The model mark 6 is located in the middle of the maintenance cover 4 and can explain the model of the optical fiber combiner, which is convenient for the installer to use. A group of heat dissipation holes 5 are opened on the upper surface of the maintenance cover 4 to dissipate heat and facilitate heat dissipation and cooling of the optical fiber 2.

[0024] The working principle of the present utility model is: when in use, the optical fiber 2 is first stretched and fused inside the tapered sleeve 1, and the ceramic tapered sleeve 1 is used to wrap and reflect the optical fiber 2 to achieve efficient power output of the optical fiber 2, and the protective shell 3 is used to provide external protection for the tapered sleeve 1. At the same time, when the optical fiber 2 generates heat during operation, the heat-absorbing copper sleeve 9 and the aluminum heat sink 8 are used to absorb and conduct the heat inside the tapered sleeve 1, and the heat is quickly dissipated through the heat dissipation window 7 and the heat dissipation hole 5, so as to dissipate heat and cool the optical fiber 2, thereby achieving safe and stable use of the optical fiber 2.

[0025] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art who is familiar with the technical field can make equivalent replacements or changes according to the technical solution and the utility model concept of the present invention within the technical scope disclosed by the present invention, and they should be included in the scope of protection of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0026] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. An optical fiber combiner, comprising a tapered sleeve (1), characterized in that: The interior of the tapered sleeve (1) is sheathed with a group of optical fibers (2), the outer surface of the group of optical fibers (2) is sheathed with a heat-absorbing copper sleeve (9), the outer surface of the heat-absorbing copper sleeve (9) is fixedly connected to the inner wall of the tapered sleeve (1), the outer surface of the tapered sleeve (1) is fixedly inlaid with a group of aluminum heat sinks (8) arranged at equal distances, the inner wall of each of the aluminum heat sinks (8) is fixedly connected to the upper surface of the heat-absorbing copper sleeve (9), the outer surface of the tapered sleeve (1) is fixedly connected with a protective shell (3), and the front and back surfaces of the protective shell (3) are fixedly inlaid with heat dissipation windows (7).

2. The optical fiber combiner according to claim 1, wherein: The tapered sleeve (1) is made of ceramic material.

3. The optical fiber combiner according to claim 1, wherein: A clamping strip (10) is fixedly connected to the bottom surface of the protective shell (3), and the clamping strip (10) is located in the middle of the protective shell (3).

4. The optical fiber combiner according to claim 1, wherein: The upper surface of the protective shell (3) is fixedly connected to a maintenance cover (4) via two sets of mounting screws, and the maintenance cover (4) is made of plastic.

5. The optical fiber combiner according to claim 4, characterized in that: A model mark (6) is fixedly connected to the upper surface of the maintenance cover (4), and the model mark (6) is located in the middle of the maintenance cover (4).

6. The optical fiber combiner according to claim 4, characterized in that: A group of heat dissipation holes (5) are provided on the upper surface of the maintenance cover (4).

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