CN218974636U - High-power optical fiber termination coupler for illumination - Google Patents
High-power optical fiber termination coupler for illumination Download PDFInfo
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- CN218974636U CN218974636U CN202223044286.2U CN202223044286U CN218974636U CN 218974636 U CN218974636 U CN 218974636U CN 202223044286 U CN202223044286 U CN 202223044286U CN 218974636 U CN218974636 U CN 218974636U
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Abstract
The utility model relates to the technical field of illumination, in particular to a high-power optical fiber termination coupler for illumination; the optical fiber termination coupler sequentially comprises a first optical fiber lock pin, a first optical fiber adapter seat, a lens system, a second optical fiber lock pin and a second optical fiber adapter seat from left to right, wherein the first optical fiber lock pin, the lens system, the first optical fiber adapter seat, the second optical fiber lock pin and the second optical fiber adapter seat are coaxially installed. According to the utility model, the lens system is additionally arranged on the original optical fiber adapter device, so that the end face of the first optical fiber is not in direct contact with the end face of the second optical fiber, and gaps exist between the lens system and the end faces of the first optical fiber and the second optical fiber respectively, so that the problem that the end faces of the optical fibers are damaged in butt joint in a complex use environment is avoided, the damage of an optical path system is caused, and the safety of an optical fiber line is effectively ensured; the fiber termination coupler has the characteristics of simple structure, high coupling efficiency and damage resistance.
Description
Technical Field
The utility model relates to the field of laser fiber illumination, in particular to a high-power fiber termination coupler for illumination.
Background
The safety is important in the illumination of flammable and explosive places such as gas stations, oil reservoirs, chemical material reservoirs, dust material reservoirs and the like. The main reason for the safety hazard is that the power supply and the switch of the luminous light source are far away from the illumination site due to sparks of illumination power supply lines, switches and the like. In the prior art, an optical fiber adapter is often used in an optical fiber illumination system to directly connect two optical fibers, for example: the Chinese patent with publication number of CN2676227Y discloses an adapter of an optical fiber movable connector, two sections of optical fiber ceramic ferrules are connected by using the adapter to realize the aim of optical cable centering connection, and as can be seen from the attached figure 2 of the prior art, direct physical contact is adopted between the two sections of optical fiber ceramic ferrules. Meanwhile, as another chinese patent with publication number CN113625397a, a detachable optical fiber adapter is disclosed, in the section of specification [0031] and fig. 2-3, a two-section optical fiber structure is disclosed in detail, two sections of optical fibers are respectively built in the central through holes of the first optical fiber ceramic rod and the second optical fiber ceramic rod, and when the optical fiber adapter is assembled, one section of optical fiber end face is placed in the first assembly, the other section of optical fiber end face is all placed in the second assembly, and meanwhile, direct physical contact is adopted between the two sections of optical fiber end faces.
However, under the high power condition, the requirement on operation connection is higher, two sections of butted optical fiber end surfaces need to be kept clean during connection, and when the optical fiber adapter is used for repeatedly using and butting for a plurality of times, the two sections of optical fiber end surfaces are easy to damage due to direct physical contact, so that unsafe factors such as optical fiber burnout and the like are caused.
To this end, the present utility model proposes a high power fiber termination coupler for illumination.
Disclosure of Invention
The present utility model is directed to a high power fiber termination coupler for illumination that solves the problems set forth in the art above.
In order to achieve the above object, the technical scheme of the present utility model is as follows:
the utility model provides a high-power optic fibre termination coupler for illumination, this optic fibre termination coupler includes first fiber lock pin, first optic fibre adapter seat, lens system, second optic fibre lock pin and second optic fibre adapter seat from left to right in proper order, first fiber lock pin is pegged graft in first optic fibre adapter seat, one side grafting lens system of first optic fibre lock pin is kept away from to first optic fibre adapter seat, the cooperation of second optic fibre adapter seat is installed on first optic fibre adapter seat, and is close to one side setting of lens system, the second optic fibre lock pin is pegged graft in second optic fibre adapter seat, first optic fibre lock pin, lens system, first optic fibre adapter seat, second optic fibre lock pin and second optic fibre adapter seat are coaxial installation, the right side of first optic fibre lock pin is first optic fibre terminal surface, the left side of second optic fibre lock pin is the second optic fibre terminal surface, first optic fibre adapter seat control first lock pin is distance L1 between lens system, L1 is 0.8-1.8mm, first optic fibre adapter seat and second optic fibre adapter seat is 2.8 mm, the distance L1-8.8 mm is commonly controlled with the second optic fibre adapter seat.
Specifically, the lens system is a coupling lens.
Specifically, the coupling lens is a biconvex symmetrical lens, the refractive index is 1.78-2.0, the thickness of the biconvex symmetrical lens is 2.5-5mm, the radius of the left end face and the right end face of the biconvex symmetrical lens is equal, and the radius is 1.1-1.8mm.
Specifically, the lens system is a green lens, the left end face and the right end face of the green lens are planes, and the thickness of the green lens is 2.5-5mm.
Specifically, the core diameters of the first optical fiber lock pin and the second optical fiber lock pin are 105um, and the numerical aperture NA of the first optical fiber lock pin and the second optical fiber lock pin is 0.13.
The beneficial effects of the utility model are as follows: according to the utility model, the lens system is additionally arranged on the original optical fiber adapter device, so that the end face of the first optical fiber is not in direct contact with the end face of the second optical fiber, and gaps exist between the lens system and the end faces of the first optical fiber and the second optical fiber respectively, so that the problem that the end faces of the optical fibers are damaged in butt joint in a complex use environment is avoided, the damage of an optical path system is caused, and the safety of an optical fiber line is effectively ensured; the fiber termination coupler has the characteristics of simple structure, high coupling efficiency and damage resistance.
Drawings
FIG. 1 is a schematic diagram of a fiber-terminated coupler according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram of the physical contact of the end surfaces of optical fibers in an embodiment of the present utility model.
Reference numerals: the optical fiber connector comprises a first optical fiber ferrule 11, a first optical fiber adapter seat 12, a lens system 13, a second optical fiber ferrule 14, a second optical fiber adapter seat 15, a first optical fiber end face S11, a left end face S12, a right end face S13 and a second optical fiber end face S14.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1, a high-power optical fiber terminating coupler for illumination, the optical fiber terminating coupler sequentially comprises a first optical fiber inserting core 11, a first optical fiber adapter seat 12, a lens system 13, a second optical fiber inserting core 14 and a second optical fiber adapter seat 15 from left to right, wherein the first optical fiber inserting core 11 is inserted into the first optical fiber adapter seat 12, one side of the first optical fiber adapter seat 12 far away from the first optical fiber inserting core 11 is inserted into the lens system 13, the second optical fiber adapter seat 15 is installed on the first optical fiber adapter seat 12 in a matched manner, and is arranged close to one side of the lens system 13, the second optical fiber inserting core 14 is inserted into the second optical fiber adapter seat 15, the first optical fiber inserting core 11, the lens system 13, the first optical fiber adapter seat 12, the second optical fiber inserting core 14 and the second optical fiber adapter seat 15 are all coaxially installed, the right side of the first optical fiber inserting core 11 is provided with a first optical fiber end face S11, the left side of the second optical fiber inserting core 14 is provided with a second end face S14, the first optical fiber inserting core 12 is provided with a second optical fiber end face S14, the distance between the first optical fiber adapter seat 12 and the second optical fiber adapter seat 1.8mm, and the distance between the first optical fiber adapter seat and the second optical fiber adapter seat 1.8mm and the second optical fiber adapter seat 1.8-8 mm, and the distance between the first optical fiber adapter seat and the optical fiber 8 and the optical fiber adapter seat 8 and the optical fiber 8mm is controlled.
Furthermore, the utility model adds the lens system 13 on the original optical fiber adapter device, and the lens system 13 adopts a coupling lens or a green lens.
1-2, the coupling lens is a biconvex symmetrical lens with a refractive index of 1.78-2.0, the thickness of the biconvex symmetrical lens is 2.5-5mm, the radius of the left end face S12 and the radius of the right end face S13 of the biconvex symmetrical lens are equal, the radius is 1.1-1.8mm, and the coupling lens is made of a high refractive index material.
The left end face and the right end face of the green lens are planes, the thickness of the green lens is 2.5-5mm, and the green lens is made of radial gradient refractive index materials.
Further, the present utility model relates to a first optical fiber ferrule 11, wherein light emitted from an optical fiber is focused on an optical fiber on a second optical fiber ferrule 14 by a lens system 13 to complete energy transmission.
Specifically, the core diameters of the first optical fiber ferrule 11 and the second optical fiber ferrule 14 are 105um, and the numerical aperture NA of the first optical fiber ferrule 11 and the second optical fiber ferrule 14 is 0.13.
Further, the first optical fiber ferrule 11 according to the present utility model is coaxially mounted on the first optical fiber adapter seat 12, and the first optical fiber adapter seat 12 controls the distance L1 between the first optical fiber ferrule 11 and the lens system 13, and the implementation distance L1 is 0.8-1.8mm.
Further, the second optical fiber ferrule 14 according to the present utility model is coaxially mounted on the second optical fiber adapter seat 15, and the first optical fiber adapter seat 12 and the second optical fiber adapter seat 15 jointly control the distance L2 between the second optical fiber ferrule 14 and the lens system 13, and the implementation distance L2 is 0.8-1.8mm.
Further, the lens system 13 according to the present utility model is coaxially installed with the first optical fiber ferrule 11 and the second optical fiber ferrule 14, respectively, so as to realize energy transmission of the optical path.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model.
Claims (5)
1. The utility model provides a high-power optical fiber termination coupler for illumination, this optical fiber termination coupler includes first fiber lock pin, first fiber adapter seat, lens system, second fiber lock pin and second fiber adapter seat from left to right in proper order, its characterized in that, first fiber lock pin is pegged graft in first fiber adapter seat, one side grafting lens system of first fiber lock pin is kept away from to first fiber adapter seat, second fiber adapter seat cooperation is installed on first fiber adapter seat, and is close to one side setting of lens system, second fiber lock pin is pegged graft in second fiber adapter seat, first fiber lock pin, lens system, first fiber adapter seat, second fiber lock pin and second fiber adapter seat are coaxial arrangement, the right side of first fiber lock pin is first fiber end face, the left side of second fiber lock pin is second fiber end face, first fiber adapter seat control first fiber lock pin is apart from lens system L1, L1-8.8 mm and second fiber adapter seat are the distance L1, L1.8-8 mm and second fiber adapter seat are the mutual distance L1.8 mm.
2. A high power fiber optic terminated coupler for illumination according to claim 1, wherein the lens system is a coupling lens.
3. A high power fiber optic terminated coupler for illumination according to claim 2, wherein the coupling lens is a biconvex symmetric lens having a refractive index of 1.78-2.0, a thickness of 2.5-5mm, and a left end face and a right end face of the biconvex symmetric lens have equal radii and a radius of 1.1-1.8mm.
4. A high power fiber optic termination coupler according to claim 1 wherein the lens system is a green lens having planar left and right faces and a green lens thickness of 2.5-5mm.
5. The high power fiber optic terminated coupler for illumination of claim 1, wherein the first and second fiber optic ferrules have a core diameter of 105um and a numerical aperture NA of 0.13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223044286.2U CN218974636U (en) | 2022-11-16 | 2022-11-16 | High-power optical fiber termination coupler for illumination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223044286.2U CN218974636U (en) | 2022-11-16 | 2022-11-16 | High-power optical fiber termination coupler for illumination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218974636U true CN218974636U (en) | 2023-05-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223044286.2U Active CN218974636U (en) | 2022-11-16 | 2022-11-16 | High-power optical fiber termination coupler for illumination |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218974636U (en) |
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2022
- 2022-11-16 CN CN202223044286.2U patent/CN218974636U/en active Active
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