A multi-core optical fiber with a multi-layer core

Abstract

The utility model relates to multi -core optical fiber technical field discloses a kind of multi-layer fiber core controllable multi -core optical fiber, including inner cladding, the inside of the inner cladding is provided with three groups of first fiber core, the inside of the inner cladding is provided with three groups of second fiber core, and the first fiber core and the second fiber core inside the inner cladding are equidistant arrangement.This multi-layer fiber core controllable multi -core optical fiber is provided with outer cladding, outer cladding is provided with outer cladding outside the inner cladding of this multi -core optical fiber, outer cladding has stronger tenacity and larger thickness, which can effectively improve the strength of the outer multi -core optical fiber, prevent the damage of the multi -core optical fiber caused by slight sharp object cutting, and a group of protective wire mesh is fixed inside the cavity arranged in the outer cladding, the anti-splitting performance of the multi -core optical fiber can be further improved by protective wire mesh, to prevent the multi -core optical fiber from being split and broken by sharp object, solve the problem that the overall strength is insufficient and easily damaged by sharp object.

Description

Technical Field

[0001] This utility model relates to the field of multi-core optical fiber technology, specifically to a multi-core optical fiber with controllable multi-layer core. Background Technology

[0002] With the development of network technology, optical fiber has become the most important network component. The ever-increasing demand for network bandwidth has led to a very fast evolution of optical fiber. Multi-core optical fiber is an optical fiber that contains multiple cores in the same cladding. By propagating optical signals through multiple cores, it can meet the network system with higher bandwidth requirements. However, the multi-core optical fibers currently used in network systems still have some defects. Insufficient strength of the optical fibers makes them prone to damage when hit by sharp objects, thus affecting their normal operation. A novel multi-core controllable multi-core optical fiber is proposed to address the aforementioned problems. Utility Model Content

[0003] The purpose of this invention is to provide a multi-core optical fiber with controllable multilayer core, in order to solve the problem mentioned in the background art of insufficient overall strength and easy damage by sharp objects.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a multi-core optical fiber with controllable multi-layer core, comprising an inner cladding, wherein three sets of first cores are disposed inside the inner cladding, and three sets of second cores are disposed inside the inner cladding, wherein the first cores and second cores inside the inner cladding are arranged at equal intervals, and a reinforcing structure for improving the tear resistance is disposed outside the inner cladding. The reinforcing structure includes an outer cladding layer, an outer cladding layer fixedly connected to the outside of the inner cladding layer, a cavity provided inside the outer cladding layer, and a protective wire mesh fixedly connected inside the cavity.

[0005] As a further technical solution of this utility model, the center line of the outer layer and the center line of the inner layer are on the same vertical plane, and the center line of the protective mesh and the center line of the inner layer are on the same horizontal plane.

[0006] As a further technical solution of this utility model, the outer cladding layer is externally fixed with a wear-resistant coating.

[0007] As a further technical solution of this utility model, the center line of the wear-resistant coating and the center line of the outer coating are on the same vertical plane.

[0008] As a further technical solution of this utility model, a support cylinder is fixedly connected inside the inner cladding layer, a support core is fixedly connected inside the support cylinder, a first core layer is fixedly connected outside the first fiber core and the second fiber core, and a second core layer is fixedly connected outside the first core layer.

[0009] As a further technical solution of this utility model, the support cylinder is movably connected to the second core layer, and the center line of the first core layer and the center line of the second core layer are on the same vertical plane.

[0010] Compared with the prior art, the beneficial effects of this utility model are: the multi-core controllable multi-core optical fiber not only improves the tear resistance and surface wear resistance, but also effectively supports the fiber core. By incorporating an outer cladding layer, a protective mesh, and a cavity, an outer cladding layer is provided outside the inner cladding layer of this multi-core optical fiber. The outer cladding layer has strong toughness and a large thickness, which can effectively improve the external strength of the multi-core optical fiber and prevent damage to the multi-core optical fiber caused by minor cutting by sharp objects. Furthermore, a set of protective mesh is fixed inside the cavity set inside the outer cladding layer. The protective mesh can further improve the cutting resistance of the multi-core optical fiber and prevent the multi-core optical fiber from being cut and broken by sharp objects, thereby improving the cutting resistance of the multi-core optical fiber. By setting an outer cladding layer and a wear-resistant coating, a wear-resistant coating is applied to the outside of the outer cladding layer of the multi-core optical fiber. The wear-resistant coating can effectively improve the wear resistance of the multi-core optical fiber and prevent the outer surface of the multi-core optical fiber from being damaged by friction after installation, thereby effectively improving the service life of the multi-core optical fiber and achieving effective improvement of the wear resistance of the surface of the multi-core optical fiber. By setting up a first core layer, a second core layer, a support cylinder, and a support core, each group of first and second fiber cores inside the multi-core optical fiber is respectively fitted with a first core layer and a second core layer, and a support cylinder is set inside the inner cladding. The support cylinder is attached to the outside of each group of second core layers to effectively support each group of fiber cores and prevent fiber core deformation and damage. Furthermore, the support core is fixed inside the support cylinder, which can improve the supporting force of the support cylinder and further enhance the supporting effect on the fiber core, thus achieving effective support for the fiber core. Attached Figure Description

[0011] Figure 1 This is a frontal cross-sectional view of the present invention. Figure 2 This is a side view sectional diagram of the protective wire mesh structure of this utility model; Figure 3 This is an enlarged front cross-sectional view of the support cylinder of this utility model; Figure 4 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0012] In the diagram: 1. Inner cladding; 2. Outer cladding; 3. Protective wire mesh; 4. Wear-resistant coating; 5. First fiber core; 6. Second fiber core; 7. First core layer; 8. Second core layer; 9. Cavity; 10. Support cylinder; 11. Support core. Detailed Implementation

[0013] 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.

[0014] Example: Please refer to Figure 1-4 A multi-core controllable multi-core optical fiber includes an inner cladding 1, three sets of first cores 5 are arranged inside the inner cladding 1, three sets of second cores 6 are arranged inside the inner cladding 1, the first cores 5 and the second cores 6 inside the inner cladding 1 are arranged at equal intervals, and a reinforcing structure for improving the tear resistance is provided on the outside of the inner cladding 1. The reinforcing structure includes an outer layer 2, an outer layer 2 is fixedly connected to the outside of the inner layer 1, a cavity 9 is provided inside the outer layer 2, and a protective wire mesh 3 is fixedly connected inside the cavity 9. The centerline of the outer layer 2 and the centerline of the inner layer 1 are on the same vertical plane, and the centerline of the protective wire mesh 3 and the centerline of the inner layer 1 are on the same horizontal plane; Specifically, such as Figure 1 , Figure 2 and Figure 4 As shown, an outer cladding 2 is provided outside the inner cladding 1 of the multi-core optical fiber. The outer cladding 2 has strong toughness and a large thickness, which can effectively improve the strength of the outside of the multi-core optical fiber and prevent the multi-core optical fiber from being damaged by slight cutting by sharp objects. Furthermore, a set of protective wire mesh 3 is fixed inside the cavity 9 provided inside the outer cladding 2. The protective wire mesh 3 can further improve the cutting resistance of the multi-core optical fiber and prevent the multi-core optical fiber from being cut and broken by sharp objects, thereby improving the cutting resistance of the multi-core optical fiber.

[0015] The outer fixing connection of the outer layer 2 has a wear-resistant coating 4; The centerline of the wear-resistant coating 4 and the centerline of the outer coating 2 are on the same vertical plane; Specifically, such as Figure 1 and Figure 4As shown, an abrasion-resistant coating 4 is coated on the outer cladding 2 of the multi-core optical fiber. The abrasion-resistant coating 4 can effectively improve the abrasion resistance of the multi-core optical fiber and prevent the outer surface of the multi-core optical fiber from being damaged by friction after installation, thereby effectively improving the service life of the multi-core optical fiber and achieving the goal of effectively improving the abrasion resistance of the surface of the multi-core optical fiber.

[0016] The inner cladding 1 is fixedly connected to the support cylinder 10, the support cylinder 10 is fixedly connected to the support core 11, the first fiber core 5 and the second fiber core 6 are fixedly connected to the first core layer 7, and the first core layer 7 is fixedly connected to the second core layer 8. The support cylinder 10 is movably connected to the second core layer 8, and the center line of the first core layer 7 and the center line of the second core layer 8 are on the same vertical plane; Specifically, such as Figure 1 and Figure 3 As shown, each group of first fiber cores 5 and second fiber cores 6 inside the multi-core optical fiber is respectively fitted with a group of first core layers 7 and second core layers 8. A support cylinder 10 is provided inside the inner cladding 1. The support cylinder 10 is attached to the outside of each group of second core layers 8 to effectively support each group of fiber cores and prevent fiber core deformation and damage. Furthermore, a support core 11 is fixed inside the support cylinder 10. The support core 11 can improve the support force of the support cylinder 10 and further enhance the support effect on the fiber core, thus achieving effective support for the fiber core.

[0017] Working Principle: In use, this invention features an outer cladding 2 surrounding the inner cladding 1 of the multi-core optical fiber. The outer cladding 2 possesses strong toughness and a large thickness, effectively enhancing the external strength of the multi-core optical fiber and preventing damage from minor cuts by sharp objects. Furthermore, a set of protective mesh 3 is fixed inside the cavity 9 within the outer cladding 2, further improving the fiber's resistance to cutting and preventing breakage from sharp objects. Finally, a wear-resistant coating 4 is applied to the outer cladding 2, effectively enhancing the fiber's resilience. The wear-resistant properties of the fiber optic cable prevent damage to the outer surface of the multi-core fiber optic cable caused by friction after installation, thereby effectively improving the service life of the multi-core fiber optic cable. Inside the multi-core fiber optic cable, a first core layer 7 and a second core layer 8 are respectively sleeved on the outside of each group of first core 5 and second core 6. A support cylinder 10 is provided inside the inner cladding 1. The support cylinder 10 fits against the outside of each group of second core layers 8 and can effectively support each group of fiber cores, preventing fiber core deformation and damage. Furthermore, a support core 11 is fixed inside the support cylinder 10. The support core 11 can increase the support force of the support cylinder 10, thereby further enhancing the support effect on the fiber cores.

Claims

1. A multi-core optical fiber with controllable multilayer core, comprising an inner cladding (1), characterized in that: The inner cladding (1) has three sets of first fiber cores (5) inside, and three sets of second fiber cores (6) inside. The first fiber cores (5) and second fiber cores (6) inside the inner cladding (1) are arranged at equal intervals. The outer side of the inner cladding (1) is provided with a reinforcing structure to improve the tear resistance. The reinforcing structure includes an outer layer (2), the outer layer (2) is fixedly connected to the outside of the inner layer (1), a cavity (9) is provided inside the outer layer (2), and a protective wire mesh (3) is fixedly connected inside the cavity (9).

2. The multi-core controllable multi-core optical fiber according to claim 1, characterized in that: The centerline of the outer layer (2) and the centerline of the inner layer (1) are on the same vertical plane, and the centerline of the protective wire mesh (3) and the centerline of the inner layer (1) are on the same horizontal plane.

3. The multi-core controllable multi-core optical fiber according to claim 1, characterized in that: The outer layer (2) is externally fixed with a wear-resistant coating (4).

4. The multi-core controllable multi-core optical fiber according to claim 3, characterized in that: The centerline of the wear-resistant coating (4) and the centerline of the outer coating (2) are on the same vertical plane.

5. The multi-core controllable multi-core optical fiber according to claim 1, characterized in that: The inner cladding layer (1) is fixedly connected to a support cylinder (10), the support cylinder (10) is fixedly connected to a support core (11), the first fiber core (5) and the second fiber core (6) are fixedly connected to a first core layer (7), and the first core layer (7) is fixedly connected to a second core layer (8).

6. The multi-core controllable multi-core optical fiber according to claim 5, characterized in that: The support cylinder (10) is movably connected to the second core layer (8), and the center line of the first core layer (7) and the center line of the second core layer (8) are on the same vertical plane.

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