Multi-core optical fiber connector based on gradient refractive index lens

Abstract

The utility model relates to the technical field of multi-core optical fiber connectors based on gradient refractive index lenses, in particular to a multi-core optical fiber connector based on gradient refractive index lenses, which comprises a five-core optical fiber, a first connecting assembly is arranged at the right end of the five-core optical fiber, a double-gradient refractive index lens group is arranged at the right end of the first connecting assembly, and a second connecting assembly is arranged at the right end of the double-gradient refractive index lens group. The multi-core optical fiber connector is characterized in that a first connecting assembly is arranged at the right end of the double-gradient refractive index lens group, a second connecting assembly is arranged at the right end of the double-gradient refractive index lens group, and a single-mode optical fiber bundle is arranged at the right end of the second connecting assembly. When a five-core optical fiber and a single-mode optical fiber bundle are respectively connected with a double-ladder-refraction lens group, a sliding rod is pulled outwards through a pulling button, a first rotating rod and a second rotating rod are driven to rotate under the cooperation of an auxiliary rod, a first connector and a second connector are in butt joint, a clamping block enters a fixing groove after the pulling button is loosened, and the double-ladder-refraction lens group is fixed. Therefore, the connection can be carried out, and the connection is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of multi-core optical fiber connectors based on gradient refractive index lenses, in particular to a multi-core optical fiber connector based on gradient refractive index lenses. Background Art

[0002] With the application and popularization of optical fiber communication networks, the transmission capacity of optical fiber networks has also increased exponentially. However, today's optical fiber network communication transmission capacity still faces severe challenges, and people's demand for transmission capacity seems endless. Therefore, multi-core fiber (MCF), as a typical space division multiplexing (SDM) solution, is most likely to be widely used in optical fiber communication with its advantages of high density, low cost, and low energy consumption, greatly improving transmission capacity.

[0003] The invention patent with patent publication number CN104536100B discloses a multi-core fiber optic connector based on a gradient refractive index lens, which is composed of a multi-core optical fiber, a double gradient refractive index lens group and a single-mode optical fiber bundle with the same number of cores as the multi-core optical fiber, and the single-mode optical fiber bundle is arranged in the same arrangement as the multi-core optical fiber core. The lens group pulls the multi-core optical fiber core apart in the radial direction to form an image, corresponding to each core of the single-mode optical fiber bundle. The present invention is different from the existing technology and adopts a double ladder-fold lens group for axial assembly and rotational alignment. With the advancement of the multi-core optical fiber manufacturing process, the size and parameters of the multi-core optical fiber have been relatively stable, and the arrangement of the single-mode optical fiber bundle is relatively fixed, which ensures the feasibility of the multi-core optical fiber connector of the present invention. The ladder-fold lens or a similar gradient refractive index multimode optical fiber has a smaller off-axis aberration than a traditional optical lens, so lower loss and crosstalk can be obtained. This double ladder-fold lens coupling system does not require a turning prism, has a more compact structure, greatly reduces the difficulty of operation, and is simpler to manufacture.

[0004] However, this structure is not convenient for connecting the optical fiber to the double ladder-fold lens, and is therefore inconvenient in use.

[0005] Therefore, a multi-core optical fiber connector based on a gradient refractive index lens is needed to improve the above problems. Utility Model Content

[0006] The utility model aims to provide a multi-core optical fiber connector based on a gradient refractive index lens to solve the problems raised in the above background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A multi-core optical fiber connector based on a gradient refractive index lens, comprising a five-core optical fiber, a first connection component is arranged at the right end of the five-core optical fiber, a double ladder-fold lens group is arranged at the right end of the first connection component, a second connection component is arranged at the right end of the double ladder-fold lens group, and a single-mode optical fiber bundle is arranged at the right end of the second connection component;

[0009] The second connecting component comprises a first connecting head, a second connecting head is arranged on the right side of the first connecting head, and a fixing block is symmetrically arranged on the left and right sides of the base surface and the bottom of the first connecting head, and the inner side surface of the fixing block is provided with a fixing groove, and the base surface and the bottom of the second connecting head are symmetrically provided with a fixing seat, the front side of the fixing seat is provided with a first rotating groove, and the rear side of the fixing seat is provided with a second rotating groove, the first rotating rod is provided with a first rotating rod for rotation inside the first rotating groove, and the second rotating rod is provided with a second rotating rod for rotation inside the second rotating groove, the right side surface of the fixing seat is slidably provided with a sliding rod, the right end of the sliding rod is provided with a pulling button, the left end of the sliding rod is provided with a rotating seat, the outer wall of the sliding rod is sleeved with a fixing spring, the inner side surfaces of the first rotating rod and the second rotating rod are provided with an adjusting groove, the auxiliary rod is rotatably provided between the adjusting groove and the rotating seat, and the outer side surfaces of the first rotating rod and the second rotating rod are provided with a clamping block.

[0010] As a preferred solution of the present utility model, the first connecting component and the second connecting component have completely the same structure.

[0011] As a preferred solution of the utility model, the left end of the first connector is connected to the double ladder-fold lens group, and the second connector is connected to the single-mode optical fiber bundle.

[0012] As a preferred solution of the utility model, the clamping block is adapted to correspond to the fixing groove.

[0013] As a preferred solution of the utility model, two ends of the fixed spring are fixedly connected to the fixed seat and the rotating seat respectively.

[0014] As a preferred solution of the present utility model, the first connector is adapted to be matched with the second connector.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] In the utility model, by arranging the first connecting component and the second connecting component on the multi-core optical fiber connector based on the gradient refractive index lens, when the five-core optical fiber and the single-mode optical fiber bundle are respectively connected to the double ladder-fold lens group, the sliding rod is pulled outward by pulling the button, and the first rotating rod and the second rotating rod are driven to rotate with the cooperation of the auxiliary rod, the first connecting head is docked with the second connecting head, and the loose pull button clamping block enters the interior of the fixed groove, so that they can be connected, which is more convenient when connecting. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is the overall front view of the utility model;

[0018] Figure 2 It is an exploded view of part of the structure of the utility model;

[0019] Figure 3 This is an exploded view of structure A of the utility model.

[0020] In the figure: 1, five-core optical fiber; 2, first connecting component; 3, double ladder-fold lens group; 4, second connecting component; 5, single-mode optical fiber bundle; 201, first connector; 202, second connector; 203, fixed block; 204, fixed groove; 205, fixed seat; 206, first rotating groove; 207, second rotating groove; 208, first rotating rod; 209, second rotating rod; 210, sliding rod; 211, pull button; 212, rotating seat; 213, fixed spring; 214, adjusting groove; 215, auxiliary rod; 216, clamping block. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0022] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings, and several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0023] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may also be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this article includes any and all combinations of one or more related listed items.

[0025] For examples, see Figure 1-3 , the utility model provides a technical solution:

[0026] A multi-core optical fiber connector based on a gradient refractive index lens comprises a five-core optical fiber 1, a first connecting component 2 is arranged at the right end of the five-core optical fiber 1, a double ladder-fold lens group 3 is arranged at the right end of the first connecting component 2, a second connecting component 4 is arranged at the right end of the double ladder-fold lens group 3, and a single-mode optical fiber bundle 5 is arranged at the right end of the second connecting component 4;

[0027] In this embodiment, please refer to Figure 2 and 3 The second connecting assembly 4 includes a first connecting head 201, a second connecting head 202 is arranged on the right side of the first connecting head 201, a fixing block 203 is symmetrically arranged on the left and right sides of the base surface and the bottom of the first connecting head 201, a fixing groove 204 is provided on the inner side of the fixing block 203, a fixing seat 205 is symmetrically arranged on the base surface and the bottom of the second connecting head 202, a first rotating groove 206 is provided on the front side of the fixing seat 205, a second rotating groove 207 is provided on the rear side of the fixing seat 205, a first rotating rod 208 is provided inside the first rotating groove 206, and the second A second rotating rod 209 is rotatably arranged inside the rotating groove 207, a sliding rod 210 is slidably arranged on the right side surface of the fixed seat 205, a pulling button 211 is arranged at the right end of the sliding rod 210, a rotating seat 212 is arranged at the left end of the sliding rod 210, a fixing spring 213 is sleeved on the outer wall of the sliding rod 210, an adjusting groove 214 is opened on the inner side surface of the first rotating rod 208 and the second rotating rod 209, an auxiliary rod 215 is rotatably arranged between the adjusting groove 214 and the rotating seat 212, and a clamping block 216 is arranged on the outer side surface of the first rotating rod 208 and the second rotating rod 209.

[0028] Among them, the first connecting component 2 and the second connecting component 4 have exactly the same structure, the left end of the first connecting head 201 is connected to the double ladder-fold lens group 3, the second connecting head 202 is connected to the single-mode optical fiber bundle 5, the clamping block 216 is adapted to the fixed groove 204, the two ends of the fixing spring 213 are respectively fixedly connected to the fixing seat 205 and the rotating seat 212, the first connecting head 201 and the second connecting head 202 are adapted to be arranged, by arranging the first connecting component 2 and the second connecting component 3 on the multi-core optical fiber connector based on the gradient refractive index lens, when the five-core optical fiber 1 and the single-mode optical fiber bundle 5 are respectively connected to the double ladder-fold lens group 3, the sliding rod 210 is pulled outward by pulling the button 211, and the first rotating rod 208 and the second rotating rod 209 are driven to rotate with the cooperation of the auxiliary rod 215, the first connecting head 201 and the second connecting head 202 are docked, the pulling button 211 is loosened, and the clamping block 216 enters the interior of the fixing groove 204, so that they can be connected, which is more convenient when connecting.

[0029] The working process of the utility model is as follows: when using a multi-core optical fiber connector based on a gradient refractive index lens, when the five-core optical fiber 1 and the single-mode optical fiber bundle 5 are respectively connected to the double ladder-fold lens group 3, the sliding bar 210 is pulled outward by pulling the button 211, and the sliding bar 210 drives the rotating seat 212 to move when moving, and the rotating seat 212 drives the auxiliary rod 215 to rotate when moving. Since the first rotating rod 208 and the second rotating rod 209 are respectively connected to the first rotating groove 206 and the second rotating groove 207 in a rotating manner, the first rotating rod 208 and the second rotating rod 209 are driven to rotate with the cooperation of the auxiliary rod 215, and the clamping block 216 is retracted inwardly, and then the first connector 201 is docked with the second connector 202, and then the pulling button 211 is loosened, and under the action of the fixing spring 213, the clamping block 216 enters the interior of the fixing groove 204, so that they can be connected, which is more convenient when connecting.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-core optical fiber connector based on a gradient refractive index lens, comprising a five-core optical fiber (1), characterized in that: The right end of the five-core optical fiber (1) is provided with a first connection component (2), the right end of the first connection component (2) is provided with a double ladder-fold lens group (3), the right end of the double ladder-fold lens group (3) is provided with a second connection component (4), and the right end of the second connection component (4) is provided with a single-mode optical fiber bundle (5); The second connection assembly (4) comprises a first connection head (201), a second connection head (202) is arranged on the right side of the first connection head (201), fixing blocks (203) are symmetrically arranged on the left and right sides of the base surface and the bottom of the first connection head (201), a fixing groove (204) is provided on the inner side surface of the fixing block (203), a fixing seat (205) is symmetrically arranged on the base surface and the bottom of the second connection head (202), a first rotation groove (206) is provided on the front side of the fixing seat (205), a second rotation groove (207) is provided on the rear side of the fixing seat (205), a first rotation rod (208) is rotatably arranged inside the first rotation groove (206), and the second rotation rod (208) is rotatably arranged inside the first rotation groove (206). A second rotating rod (209) is rotatably arranged inside the groove (207); a sliding rod (210) is slidably arranged on the right side of the fixed seat (205); a pulling button (211) is arranged at the right end of the sliding rod (210); a rotating seat (212) is arranged at the left end of the sliding rod (210); a fixing spring (213) is sleeved on the outer wall of the sliding rod (210); an adjusting groove (214) is provided on the inner side surfaces of the first rotating rod (208) and the second rotating rod (209); an auxiliary rod (215) is rotatably arranged between the adjusting groove (214) and the rotating seat (212); and a clamping block (216) is provided on the outer side surfaces of the first rotating rod (208) and the second rotating rod (209).

2. A multi-core optical fiber connector based on a gradient refractive index lens according to claim 1, characterized in that: The first connecting component (2) and the second connecting component (4) have completely the same structure.

3. The multi-core optical fiber connector based on a gradient refractive index lens according to claim 1, characterized in that: The left end of the first connector (201) is connected to the double ladder-fold lens group (3), and the second connector (202) is connected to the single-mode optical fiber bundle (5).

4. The multi-core optical fiber connector based on a gradient refractive index lens according to claim 1, characterized in that: The clamping block (216) is configured to correspond to the fixing groove (204).

5. The multi-core optical fiber connector based on a gradient refractive index lens according to claim 1, characterized in that: The two ends of the fixed spring (213) are fixedly connected to the fixed seat (205) and the rotating seat (212) respectively.

6. The multi-core optical fiber connector based on a gradient refractive index lens according to claim 1, characterized in that: The first connector (201) and the second connector (202) are configured to match each other.

Images