CN110824634B - Optical fiber packaging structure - Google Patents
Optical fiber packaging structure Download PDFInfo
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- CN110824634B CN110824634B CN201911057141.6A CN201911057141A CN110824634B CN 110824634 B CN110824634 B CN 110824634B CN 201911057141 A CN201911057141 A CN 201911057141A CN 110824634 B CN110824634 B CN 110824634B
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- optical fiber
- outer tube
- tube
- packaging structure
- hose
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Coupling Of Light Guides (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
The invention relates to the technical field of light guide connecting devices, in particular to an optical fiber packaging structure. The packaging structure is used for packaging an optical fiber, the optical fiber is arranged in the protective sleeve, one end of the optical fiber penetrates out of the protective sleeve, the optical fiber packaging structure mainly comprises a first outer tube, a hose and a second outer tube, the first outer tube is connected with one end of the protective sleeve, and the optical fiber penetrates out of the protective sleeve, enters a first tube cavity of the first outer tube and extends into a penetrating hole of the first outer tube; the hose is arranged in the first tube cavity and is sleeved on the outer side of the optical fiber close to the protective sleeve; the second outer tube is fixedly arranged in the first tube cavity and sleeved outside the hose, and stripping resin for stripping cladding light is filled in the second tube cavity of the second outer tube. The optical fiber packaging structure of the invention enables the divergence angle and uniformity of output light spots of the optical fiber to be better by reducing the stress of the optical fiber.
Description
Technical Field
The invention relates to the technical field of light guide connecting devices, in particular to an optical fiber packaging structure.
Background
Optical fibers are short for optical fibers, and are fibers made of glass or plastic that can be used as a light conducting means. The fine optical fiber is packaged in a plastic sheath so that it can be bent without breaking, and both ends of the optical fiber are packaged using a packaging structure. In the prior art package, the optical fiber is usually passed through a stainless steel connector for processing the cladding light, and a high refractive index optical cement is injected into the connector for fixing the optical fiber. In the packaging structure, due to machining, after the optical fiber passes through the connector, the level of the optical fiber is difficult to ensure, the stress of the optical fiber is increased, and the divergence angle and the uniformity of an output light spot of the optical fiber are influenced; moreover, when the optical fiber transmits high-power laser, the thermal expansion of the stainless steel material causes the stress of the optical fiber, and the divergence angle and the uniformity of the output light spot of the optical fiber are influenced.
Disclosure of Invention
Therefore, the technical problem to be solved by the present invention is to overcome the defect that the divergence angle and the uniformity of the output light spot of the optical fiber are affected by the optical fiber packaging structure in the prior art, so as to provide an optical fiber packaging structure without affecting the divergence angle and the uniformity of the output light spot of the optical fiber.
In order to solve the above problems, the optical fiber packaging structure of the present invention is used for packaging an optical fiber, the optical fiber is disposed in a protective sheath, one end of the optical fiber penetrates out of the protective sheath, the optical fiber packaging structure mainly includes a first outer tube, a hose and a second outer tube, the first outer tube is connected with one end of the protective sheath, the optical fiber penetrates out of the protective sheath, enters a first tube cavity of the first outer tube, and extends into a through hole of the first outer tube; the hose is arranged in the first tube cavity and is sleeved on the outer side of the optical fiber close to the protective sleeve; the second outer tube is fixedly arranged in the first tube cavity and sleeved outside the hose, and stripping resin for stripping cladding light is filled in the second tube cavity of the second outer tube.
The hose, the second outer pipe, the first outer pipe and the through hole are coaxially arranged.
The hose and the second outer tube are in interference fit.
The length of hose is less than the length of second outer tube, just the second outer tube is close to the protective sheath setting is in the inner wall of second lumen with the hose keep away from set up in the space that the end wall of protective sheath encloses peel resin.
The stripping resin is high-refractive-index optical cement.
And heat-conducting glue is arranged between the second outer tube and the wall of the first tube cavity.
The second outer tube is made of heat conducting materials.
The second outer pipe is an aluminum pipe.
The first outer pipe is made of beryllium copper.
The through hole is formed in one end, far away from the protective sleeve, of the first tube cavity, and a set distance is reserved between the end, far away from the protective sleeve, of the second outer tube and the wall, provided with the through hole, of the first tube cavity.
The technical scheme of the invention has the following advantages:
1. the optical fiber packaging structure is used for packaging an optical fiber, the optical fiber is arranged in a protective sleeve, one end of the optical fiber penetrates out of the protective sleeve, the optical fiber packaging structure mainly comprises a first outer tube, a hose and a second outer tube, the optical fiber is arranged in the protective sleeve, and one end of the optical fiber penetrates out of the protective sleeve; the first outer tube is connected with one end of the protective sleeve, and the optical fiber penetrates out of the protective sleeve, enters a first tube cavity of the first outer tube and extends into a penetrating hole of the first outer tube; the hose is arranged in the first tube cavity and is sleeved on the outer side of the optical fiber close to the protective sleeve; the second outer tube is fixedly arranged in the first tube cavity and sleeved outside the hose, and stripping resin for stripping cladding light is filled in the second tube cavity of the second outer tube. The optical fiber, the hose, the second outer tube and the first outer tube are sleeved, the position of the optical fiber in the first tube cavity can be limited, the stripping resin is arranged in the second outer tube, the optical fiber can be flexibly fixed through the hose, the optical fiber is horizontally arranged in the first tube cavity, the stress of the optical fiber is reduced, and the output light spot divergence angle and uniformity of the optical fiber are better.
2. According to the optical fiber packaging structure, the flexible pipe, the second outer pipe, the first outer pipe and the through hole are coaxially arranged, so that the optical fiber can be horizontally arranged.
3. According to the optical fiber packaging structure, the stripping resin is located in the space enclosed by the inner wall of the second tube cavity and the end wall of the hose far away from the protective sleeve, the hose can limit the optical fiber to be horizontally arranged in the second tube cavity, the influence on the position of the optical fiber when the stripping resin is solidified can be reduced, the optical fiber is prevented from inclining in the second tube cavity, and the stress of the optical fiber is further reduced.
4. According to the optical fiber packaging structure, the high-refractive-index optical cement has the function of stripping cladding light and the function of fixing the optical fiber and the second outer tube simultaneously.
5. According to the optical fiber packaging structure, the heat-conducting glue is arranged between the second outer tube and the wall of the first tube cavity, and the second outer tube is an aluminum tube, so that heat generated when the optical fiber transmits high-power laser is transmitted to the outside through the aluminum tube and the heat-conducting glue in sequence, further, the optical fiber stress caused by thermal expansion in the packaging structure is reduced, and the divergence angle and uniformity of output light spots of the optical fiber are better.
6. According to the optical fiber packaging structure, a set distance is reserved between the end part, far away from the protective sleeve, of the second outer tube and the cavity wall, provided with the through hole, of the first cavity, so that the optical fiber is in a free state on the outer side of the end part, far away from the protective sleeve, of the second outer tube, and the stress of the optical fiber can be further reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural diagram of an optical fiber package structure according to the present invention;
description of reference numerals:
1-an optical fiber; 2-protective sleeve; 3-a first outer tube; 4-perforating holes; 5-a hose; 6-a first lumen; 7-a second outer tube; 8-high refractive index optical cement.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
The optical fiber packaging structure is used for packaging an optical fiber 1, the optical fiber 1 is arranged in a protective sleeve 2, one end of the optical fiber 1 penetrates out of the protective sleeve 2, and the optical fiber packaging structure comprises a first outer tube 3, a hose 5 and a second outer tube 7.
First outer tube 3 with the one end of protective sheath 2 is connected, optic fibre 1 wear out behind the protective sheath 2 enter into in the first lumen 6 of first outer tube 3 to stretch into in the wear-to-establish hole 4 of first outer tube 3. First lumen 6 is cylindric structure, wear to establish hole 4 and locate keeping away from of first lumen 6 the one end of protective sheath 2, just wear to establish hole 4 with the coaxial setting of first lumen 6. In this embodiment, the first outer tube 3 is made of beryllium copper.
The second outer tube 7 is fixedly arranged in the first tube cavity 6 and is arranged close to the protective sleeve 2, and stripping resin for stripping cladding light is filled in the second tube cavity of the second outer tube 7. In this embodiment, in order to increase the heat conduction performance of the package structure, the second outer tube 7 is made of a heat conduction material, and if the second outer tube 7 is an aluminum tube, the second outer tube may be made of other heat conduction materials as long as the process performance of the package structure is satisfied; and, set up the heat-conducting glue between the cavity wall of said second outer tube 7 and said first lumen 6, the heat-conducting glue plays a role in fixing the first lumen 6 and second outer tube 7, and conducting heat. The packaging structure has good heat-conducting property, and can reduce the optical fiber stress caused by thermal expansion of the optical fiber packaging structure, so that the output light spot divergence angle and uniformity of the optical fiber 1 are better.
The hose 5 is sleeved in the second outer pipe 7, and the optical fiber 1 is sleeved close to the protective sleeve 2. The hose 5 and the second outer pipe 7 are in interference fit, the length of the hose 5 is smaller than that of the second outer pipe 7, and the stripping resin is arranged in a space defined by the inner wall of the second pipe cavity and the end wall, far away from the protective sleeve 2, of the hose 5.
In this embodiment, the high refractive index optical glue 8 is selected as the release resin. The high refractive index optical cement 8 has a function of fixing the optical fiber 1 and the second outer tube 7 at the same time, in addition to a function of peeling off the clad light.
In order to ensure that the optical fiber 1 is horizontally arranged in the packaging structure, the hose 5, the second outer tube 7, the first outer tube 3 and the through hole 4 are coaxially arranged. The optical fiber 1 is horizontally arranged in the packaging structure, so that the stress of the optical fiber 1 can be reduced, and the divergence angle and uniformity of output light spots of the optical fiber 1 are better.
In order to further reduce the stress of the optical fiber 1, a set distance is provided between the end of the second outer tube 7 far from the protective sheath 2 and the wall of the first lumen 6 where the through hole 4 is provided, and the optical fiber 1 is in a free state within the set distance, so that the stress of the optical fiber 1 can be reduced.
The optical fiber packaging structure of the embodiment enables the divergence angle and uniformity of output light spots of the optical fiber 1 to be better by reducing the stress of the optical fiber 1.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (9)
1. The utility model provides an optical fiber packaging structure for encapsulated fiber (1), protective sheath (2) are located in optical fiber (1), the one end of optical fiber (1) is worn out protective sheath (2), its characterized in that, optical fiber packaging structure includes:
the optical fiber connector comprises a first outer tube (3) connected with one end of a protective sleeve (2), wherein an optical fiber (1) penetrates out of the protective sleeve (2), enters a first tube cavity (6) of the first outer tube (3) and extends into a penetrating hole (4) of the first outer tube (3);
the hose (5) is arranged in the first tube cavity (6) and is sleeved on the outer side of the optical fiber (1) close to the protective sleeve (2);
the second outer tube (7) is fixedly arranged in the first tube cavity (6) and sleeved outside the hose (5), and stripping resin for stripping cladding light is filled in the second tube cavity of the second outer tube (7);
the length of the hose (5) is smaller than that of the second outer pipe (7), the second outer pipe (7) is close to the protective sleeve (2), and the stripping resin is arranged in a space surrounded by the inner wall of the second pipe cavity and the end wall, far away from the protective sleeve (2), of the hose (5).
2. Optical fiber packaging structure according to claim 1, characterized in that the hose (5), the second outer tube (7), the first outer tube (3) and the through hole (4) are coaxially arranged.
3. Optical fiber packaging structure according to claim 1, characterized in that there is an interference fit between the hose (5) and the second outer tube (7).
4. Optical fiber package according to any of claims 1-3, characterized in that the release resin is a high refractive index optical glue (8).
5. Optical fiber packaging structure according to any one of claims 1-3, characterized in that a thermally conductive glue is provided between the second outer tube (7) and the wall of the first lumen (6).
6. Optical fiber encapsulation structure according to claim 5, characterized in that the second outer tube (7) is a thermally conductive material.
7. Optical fiber package according to claim 6, characterized in that the second outer tube (7) is an aluminum tube.
8. Optical fiber package structure according to any one of claims 1 to 3, characterized in that the material of the first outer tube (3) is beryllium copper.
9. Optical fiber packaging structure according to any one of claims 1 to 3, wherein the through hole (4) is provided at an end of the first lumen (6) away from the protective sheath (2), and a set distance is provided between an end of the second outer tube (7) away from the protective sheath (2) and a cavity wall of the first lumen (6) where the through hole (4) is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911057141.6A CN110824634B (en) | 2019-10-31 | 2019-10-31 | Optical fiber packaging structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911057141.6A CN110824634B (en) | 2019-10-31 | 2019-10-31 | Optical fiber packaging structure |
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| CN110824634A CN110824634A (en) | 2020-02-21 |
| CN110824634B true CN110824634B (en) | 2021-01-29 |
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| CN201911057141.6A Active CN110824634B (en) | 2019-10-31 | 2019-10-31 | Optical fiber packaging structure |
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| CN115267986B (en) * | 2022-08-15 | 2024-01-26 | 武汉锐科光纤激光技术股份有限公司 | Packaging structure and optical fiber coupler |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103777298A (en) * | 2014-02-17 | 2014-05-07 | 四川飞阳科技有限公司 | Tightness packaging method for optical fiber |
| CN207440343U (en) * | 2017-11-15 | 2018-06-01 | 珠海光库科技股份有限公司 | End caps |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2575383B2 (en) * | 1987-04-21 | 1997-01-22 | 株式会社フジクラ | Connection structure of tape-shaped multi-core optical fiber |
| CN201820011U (en) * | 2010-08-06 | 2011-05-04 | 厦门市贝莱通信设备有限公司 | LC type metal contact pin structure of packaging optical fiber jumper of optical device |
| CN102116916A (en) * | 2011-03-04 | 2011-07-06 | 武汉电信器件有限公司 | Installing and fixing structure of optical fiber |
| CN202582782U (en) * | 2012-05-03 | 2012-12-05 | 无锡成电光纤传感科技有限公司 | Packaging structure for FBG temperature sensor |
| CN203519869U (en) * | 2013-10-09 | 2014-04-02 | 深圳朗光科技有限公司 | Fiber packaging structure |
| CN103941368B (en) * | 2014-04-30 | 2016-08-24 | 武汉理工光科股份有限公司 | Improve connecting method and the structure thereof of splicing cables resistance to tension |
| CN208459651U (en) * | 2018-07-17 | 2019-02-01 | 北极光电(深圳)有限公司 | A kind of optical fiber head structure with well |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103777298A (en) * | 2014-02-17 | 2014-05-07 | 四川飞阳科技有限公司 | Tightness packaging method for optical fiber |
| CN207440343U (en) * | 2017-11-15 | 2018-06-01 | 珠海光库科技股份有限公司 | End caps |
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Address after: 215163 No.2 workshop-1-102, No.2 workshop-2-203, zone a, industrial square, science and Technology City, No.189 Kunlunshan Road, high tech Zone, Suzhou City, Jiangsu Province Patentee after: Suzhou Changguang Huaxin Optoelectronic Technology Co.,Ltd. Patentee after: SUZHOU EVERBRIGHT SEMICONDUCTOR LASER INNOVATION RESEARCH INSTITUTE Co.,Ltd. Address before: 215163 Building 2, No.189, Kunlunshan Road, high tech Zone, Suzhou City, Jiangsu Province Patentee before: SUZHOU EVERBRIGHT PHOTONICS TECHNOLOGY Co.,Ltd. Patentee before: SUZHOU EVERBRIGHT SEMICONDUCTOR LASER INNOVATION RESEARCH INSTITUTE Co.,Ltd. |