Optical fiber collimation butt joint device
By using the refractive convergence technology of an aspherical lens in the optical fiber docking device, the divergence angle of the light beam is reduced, which solves the problem of optical signal attenuation during the optical fiber docking process, and improves the optical signal transmission efficiency.
Patent Information
- Application Number
- CN202422334588.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-25
- Publication Date
- 2025-08-12
- Estimated Expiration
- 2034-09-25
AI Technical Summary
During the fiber docking process, the optical signal attenuation due to the large divergence angle of the light beam, which reduces the optical signal transmission efficiency.
An optical fiber collimation docking device with an aspherical lens installed at the transmitting end and the receiving end is adopted. Through the refractive convergence technology of the aspherical lens, the beam with a larger divergence angle is converted into a beam with a smaller divergence angle, reducing the attenuation of the light signal.
The optical signal transmission efficiency during fiber docking is improved, the focus and stability of the optical signal are enhanced, and the attenuation of the optical signal during docking is reduced.
Smart Images
Figure CN223217709U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of optical fiber signal transmission, and particularly relates to an optical fiber alignment and docking device. Background Art
[0002] Optical fiber is a thin, transparent fiber made of glass or plastic that is used to transmit light signals. It uses the principle of light reflection to transmit light signals along the fiber core, thereby achieving high-speed information transmission.
[0003] To achieve signal transmission between different devices, the optical fibers between different devices need to be docked. During the actual docking process of the optical fibers, defects in the optical fiber materials and density fluctuations of the optical fibers will cause the signal light in the optical fibers to scatter, forming a light beam with a large divergence angle. Due to the large divergence angle of the light beam, the energy density per unit area decreases, causing the optical signal to attenuate, thereby reducing the efficiency of optical signal transmission. Utility Model Content
[0004] In order to solve the problems encountered in the above-mentioned background technology, the present application proposes a fiber optic collimation docking device, which is used to convert a light beam with a larger divergence angle into a light beam with a smaller divergence angle during the fiber optic docking process, thereby reducing the attenuation of the optical signal during the fiber optic docking process, and thereby improving the optical signal transmission efficiency during the fiber optic docking process.
[0005] To achieve the above objectives, the present invention provides the following technical solutions:
[0006] A fiber alignment and docking device comprises a transmitting end and a receiving end; an input optical fiber is inserted into the transmitting end, a first sleeve is provided at one end of the transmitting end, a first aspheric lens is installed in the first sleeve, a first plug interface is provided at the other end of the transmitting end, a first tail end assembly is plugged into the first plug interface, and the output end of the input optical fiber is close to the first aspheric lens; an output optical fiber is inserted into the receiving end, a second sleeve is provided at one end of the receiving end, a second aspheric lens is installed in the second sleeve, a second sleeve is provided at the other end of the receiving end, a second tail end assembly is plugged into the second plug interface, the input end of the output optical fiber is close to the second aspheric lens, and the first sleeve and the second sleeve are plugged together.
[0007] In one embodiment of the present application, a first adjustment cavity and a second adjustment cavity are respectively provided on one side of the first plug interface and the second plug interface, and a first plug block and a second plug block are respectively provided in the first adjustment cavity and the second adjustment cavity. The first plug block and the second plug block are respectively connected to the outside of the input optical fiber and the output optical fiber.
[0008] In one embodiment of the present application, the inner diameter of the first sleeve is greater than the inner diameter of the second sleeve.
[0009] In one embodiment of the present application, the first sleeve and the second sleeve are made of ceramic tubes.
[0010] In one embodiment of the present application, the outer rings of the transmitting end and the receiving end are provided with ring edges.
[0011] In one embodiment of the present application, glue injection holes are provided on outer walls of the first plug interface and the second plug interface.
[0012] In one embodiment of the present application, the outer surfaces of the input optical fiber and the output optical fiber are provided with a coating layer.
[0013] In summary, the technical solution proposed in this application includes the following beneficial technical effects: the signal light in the input optical fiber is irradiated to the first aspheric lens in the first sleeve through the output end of the input optical fiber, the signal light is refracted through the first aspheric lens, the divergence angle is reduced, and thus converges, and then passes through the plugged first sleeve and the second sleeve and irradiates the second aspheric lens in the second sleeve to refract and converge the signal light again, thereby reducing the divergence angle of the signal light. The refraction and convergence of the light signal through the aspheric lens improves the focusing of the light signal, and during the process of optical fiber docking, the light beam with a larger divergence angle is converted into a light beam with a smaller divergence angle, reducing the attenuation of the light signal during the optical fiber docking process, thereby improving the optical signal transmission efficiency during optical fiber docking. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.
[0015] Figure 1 A schematic diagram of the three-dimensional structure of an optical fiber alignment and docking device provided in one embodiment of the present application;
[0016] Figure 2 A schematic cross-sectional view of an optical fiber alignment and docking device according to an embodiment of the present application;
[0017] Figure 3 A schematic diagram of the cross-sectional structure of the transmitting end of the optical fiber alignment and docking device provided in one embodiment of the present application;
[0018] Figure 4 A schematic diagram of the cross-sectional structure of the receiving end of the optical fiber alignment and docking device provided in one embodiment of the present application;
[0019] In the figure: transmitting end 1, input optical fiber 11, first plug-in block 111, first sleeve 12, first aspheric lens 121, first plug-in port 13, first tail end assembly 131, first adjustment cavity 14;
[0020] Receiving end 2, output optical fiber 21, second plug block 211, second sleeve 22, second aspheric lens 221, second plug interface 23, second tail end assembly 231, second adjustment cavity 24;
[0021] Circle edge -3;
[0022] Glue injection holes-4. DETAILED DESCRIPTION
[0023] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application are clearly and completely described below. Obviously, the described embodiments are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts also fall within the scope of protection of this application.
[0024] It should be noted that in the description of this application, the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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 a limitation on this application.
[0025] The terms "mounted," "connected," and "connected" in this application should be interpreted broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical connections; direct connections or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on specific circumstances.
[0026] In the embodiments of this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of this application should not be interpreted as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.
[0027] This embodiment provides an optical fiber alignment and docking device, see Figures 1-4As shown, it includes a transmitting end 1 and a receiving end 2; an input optical fiber 11 is inserted into the transmitting end 1, a first sleeve 12 is provided at one end of the transmitting end 1, a first aspheric lens 121 is installed in the first sleeve 12, and a first plug interface 13 is provided at the other end of the transmitting end 1, a first tail end component 131 is plugged into the first plug interface 13, and the output end of the input optical fiber 11 is close to the first aspheric lens 121; an output optical fiber 21 is inserted into the receiving end 2, a second sleeve 22 is provided at one end of the receiving end 2, a second aspheric lens 221 is installed in the second sleeve 22, a second plug interface 23 is provided at the other end of the receiving end 2, a second tail end component 231 is plugged into the second plug interface 23, the input end of the output optical fiber 21 is close to the second aspheric lens 221, and the first sleeve 12 and the second sleeve 22 are plugged.
[0028] In the above embodiment, an input optical fiber 11 is inserted into the transmitting end 1, and an output optical fiber 21 is inserted into the receiving end 2. A first plug interface 13 and a second plug interface 23 are provided at one end of the transmitting end 1 and the receiving end 2, respectively. A first tail end assembly 131 and a second tail end assembly 231 are respectively inserted into the first plug interface 13 and the second plug interface 23. The first tail end assembly 131 is connected to the outer wall of the input optical fiber 11, and the second tail end assembly 231 is connected to the outer wall of the output optical fiber 21. The tail end assemblies are used to limit and fix the optical fibers to prevent the outer ends of the optical fibers from being disturbed at the transmitting end 1 and the receiving end 2, which would cause shaking of the optical fiber insertion ends, thereby improving the stability of the input optical fiber 11 and the output optical fiber 21 within the transmitting end 1 and the receiving end 2. A first aspheric lens 121 is installed in the first sleeve 12. The signal light in the input optical fiber 11 is irradiated by the output end of the input optical fiber 11 to the first aspheric lens 121 in the first sleeve 12. The signal light is refracted by the first aspheric lens 121, reducing the divergence angle and thus converging. The first sleeve 12 is plugged into the second sleeve 22, and a second aspheric lens 221 is installed in the second sleeve 22. The optical signal passes through the plugged first sleeve 12 and the second sleeve 22, and then irradiates the second aspheric lens 221 in the second sleeve 22, which refracts and converges the signal light again, thereby reducing the divergence angle of the signal light. The optical signal is then irradiated to the input end of the output optical fiber 21 and transmitted outward through the output optical fiber 21. The refraction and convergence of the optical signal through the aspheric lens improves the focusing of the optical signal. During the process of optical fiber docking, the light beam with a larger divergence angle is converted into a light beam with a smaller divergence angle, reducing the attenuation of the optical signal during the optical fiber docking process, thereby improving the optical signal transmission efficiency during the optical fiber docking. In addition, the convenience of optical fiber docking is improved by plugging the first sleeve 12 and the second sleeve 22.
[0029] In one embodiment of the present application, see Figure 2As shown, a first adjustment cavity 14 and a second adjustment cavity 24 are respectively provided on one side of the first plug interface 13 and the second plug interface 23. A first plug block 111 and a second plug block 211 are respectively provided in the first adjustment cavity 14 and the second adjustment cavity 24. The first plug block 111 and the second plug block 211 are respectively connected to the outside of the input optical fiber 11 and the output optical fiber 21.
[0030] In the above embodiment, the adjustment cavity reserves adjustment space for the optical fiber, which facilitates the adjustment of the distance between the output end of the input optical fiber 11 and the input end of the output optical fiber 21 and the first aspheric lens 121 and the second aspheric lens 221, so as to find the optimal refraction distance for calibrating the optical signal, which is beneficial to improving the focusing and collimation effect of the optical signal, thereby improving the transmission efficiency of the optical signal. The plug is used to fill the gap between the optical fiber and the adjustment cavity, thereby improving the stability of the optical fiber.
[0031] In one embodiment of the present application, see Figure 2 As shown, the inner diameter of the first sleeve 12 is greater than the inner diameter of the second sleeve 22 .
[0032] In the above embodiment, the inner diameter of the first sleeve 12 is larger than the inner diameter of the second sleeve 22. On the one hand, the first sleeve 12 and the second sleeve 22 can be plugged in. On the other hand, the large inner diameter of the first sleeve 12 can increase the cross-sectional area of the optical signal refracted and focused by the first aspheric lens 121, thereby increasing the amount of optical signal passing through to avoid attenuation and distortion of the optical signal, thereby being beneficial to improving the transmission efficiency of the optical signal in the optical fiber.
[0033] In one embodiment of the present application, the first sleeve 12 and the second sleeve 22 are made of ceramic tubes.
[0034] In the above embodiment, the ceramic material has good high temperature resistance and corrosion resistance, strong adaptability to the working environment, and good insulation performance, which can effectively prevent electromagnetic interference and ensure stable transmission of optical fiber signals.
[0035] In one embodiment of the present application, see Figure 1 As shown, the outer circles of the transmitting end 1 and the receiving end 2 are provided with circle edges 3.
[0036] In the above embodiment, the raised edge 3 is used to provide a gripping point to facilitate the insertion and removal of the transmitter 1 and the receiver 2.
[0037] In one embodiment of the present application, see Figure 3 and Figure 4 As shown, the outer walls of the first plug-in port 13 and the second plug-in port 23 are provided with glue injection holes 4 .
[0038] In the above embodiment, the outer walls of the first plug interface 13 and the second plug interface 23 are provided with a glue injection hole 4, and glue is injected into the joint between the tail end component and the plug interface through the glue injection hole 4, so that the connection between the tail end component and the plug interface is more stable, which is beneficial to improving product quality.
[0039] In one embodiment of the present application, the outer surfaces of the input optical fiber 11 and the output optical fiber 21 are provided with a coating layer.
[0040] In the above embodiment, the coating layer can protect the optical fiber core from physical damage and chemical corrosion, and can also isolate the optical fiber core from the external environment to prevent crosstalk and signal attenuation between the optical fiber cores.
[0041] In the actual use of this application: one end of the transmitting end 1 and the receiving end 2 is respectively provided with a first plug interface 13 and a second plug interface 23, and the first tail end component 131 and the second tail end component 231 are respectively plugged into the first plug interface 13 and the second plug interface 23, the first tail end component 131 is connected to the outer wall of the input optical fiber 11, and the second tail end component 231 is connected to the outer wall of the output optical fiber 21. The tail end component is used to limit and fix the optical fiber to improve the stability of the input optical fiber 11 and the output optical fiber 21 in the transmitting end 1 and the receiving end 2. The signal light in the input optical fiber 11 is irradiated to the second optical fiber 21 through the output end of the input optical fiber 11. The signal light is refracted through the first aspheric lens 121 in a sleeve 12 to reduce the divergence angle, thereby converging. The signal light passes through the first sleeve 12 and the second sleeve 22 that are connected and then irradiates the second aspheric lens 221 in the second sleeve 22 to refract and converge the signal light again, thereby reducing the divergence angle of the signal light. The light signal is then irradiated to the input end of the output optical fiber 21 and transmitted outward through the output optical fiber 21. The refraction and convergence of the light signal through the aspheric lens improves the focusing of the light signal, avoids the divergence, attenuation and distortion of the light signal during the docking transmission process, and is beneficial to improving the transmission efficiency of the light signal in the optical fiber.
[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.
Claims
1. An optical fiber alignment and docking device, characterized in that: The invention comprises a transmitting end (1) and a receiving end (2); an input optical fiber (11) is inserted into the transmitting end (1); a first sleeve (12) is provided at one end of the transmitting end (1); a first aspheric lens (121) is installed in the first sleeve (12); a first plug interface (13) is provided at the other end of the transmitting end (1); a first tail end component (131) is plugged into the first plug interface (13); the output end of the input optical fiber (11) is close to the first aspheric lens (121); An output optical fiber (21) is inserted into the end (2); a second sleeve (22) is provided at one end of the receiving end (2); a second aspheric lens (221) is installed in the second sleeve (22); a second plug interface (23) is provided at the other end of the receiving end (2); a second tail end component (231) is plugged into the second plug interface (23); the input end of the output optical fiber (21) is close to the second aspheric lens (221); and the first sleeve (12) and the second sleeve (22) are plugged into each other.
2. The optical fiber alignment and docking device according to claim 1, characterized in that: A first adjustment cavity (14) and a second adjustment cavity (24) are respectively provided on one side of the first plug interface (13) and the second plug interface (23); a first plug block (111) and a second plug block (211) are respectively provided in the first adjustment cavity (14) and the second adjustment cavity (24); the first plug block (111) and the second plug block (211) are respectively connected to the outside of the input optical fiber (11) and the output optical fiber (21).
3. The optical fiber alignment and docking device according to claim 1, characterized in that: The inner diameter of the first sleeve (12) is greater than the inner diameter of the second sleeve (22).
4. The optical fiber alignment and docking device according to claim 3, characterized in that: The first sleeve (12) and the second sleeve (22) are made of ceramic tubes.
5. The optical fiber alignment and docking device according to claim 1, characterized in that: The outer circles of the transmitting end (1) and the receiving end (2) are provided with circle edges (3).
6. The optical fiber alignment and docking device according to claim 1, characterized in that: Glue injection holes (4) are provided on the outer walls of the first plug-in interface (13) and the second plug-in interface (23).
7. The optical fiber alignment and docking device according to any one of claims 1 to 6, characterized in that: The outer surfaces of the input optical fiber (11) and the output optical fiber (21) are provided with coating layers.