CN109541765B - Optical fiber and optical cable using same - Google Patents
Optical fiber and optical cable using same Download PDFInfo
- Publication number
- CN109541765B CN109541765B CN201710868316.6A CN201710868316A CN109541765B CN 109541765 B CN109541765 B CN 109541765B CN 201710868316 A CN201710868316 A CN 201710868316A CN 109541765 B CN109541765 B CN 109541765B
- Authority
- CN
- China
- Prior art keywords
- optical fiber
- outer sheath
- spiral armor
- armor hose
- bare
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000013307 optical fiber Substances 0.000 title claims abstract description 135
- 230000003287 optical effect Effects 0.000 title claims abstract description 25
- 239000000463 material Substances 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 9
- 239000000835 fiber Substances 0.000 claims description 28
- 238000001125 extrusion Methods 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000006835 compression Effects 0.000 abstract description 9
- 238000007906 compression Methods 0.000 abstract description 9
- 238000005452 bending Methods 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 23
- 239000011247 coating layer Substances 0.000 description 5
- 238000005253 cladding Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052755 nonmetal Inorganic materials 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- 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
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
-
- 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
- G02B6/4401—Optical cables
- G02B6/4415—Cables for special applications
- G02B6/4427—Pressure resistant cables, e.g. undersea cables
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
The invention relates to the field of optical fiber transmission equipment, in particular to an optical fiber and an optical cable using the same. The optical fiber comprises a bare optical fiber, a jacket layer is arranged on the periphery of the bare optical fiber, a spiral armor hose and an outer sheath are sleeved on the periphery of the bare optical fiber, the bare optical fiber and the spiral armor hose are arranged adjacently, the outer sheath is sleeved on the spiral armor hose, the jacket layer is composed of the spiral armor hose and the outer sheath, and the outer sheath is made of tensile materials to form a tensile layer sleeved on the periphery of the bare optical fiber. The spiral armor hose has stronger compression resistance and bending resistance, the jacket layer consists of the spiral armor hose and the outer jacket, the outer jacket is made of tensile materials to form a tensile layer sleeved on the periphery of the bare optical fiber, the tensile layer is limited by the size of the optical fiber, the compression resistance and the tensile resistance of the optical fiber are improved while the size of the optical fiber is not increased as much as possible, and the problem that the existing optical fiber is easily crushed and pulled apart in the use process due to the fact that the compression resistance and the tensile resistance are poor is solved.
Description
Technical Field
The invention relates to the field of optical fiber transmission equipment, in particular to an optical fiber and an optical cable using the same.
Background
The general optical fiber is in a multi-layer coaxial cylinder structure and mainly comprises a fiber core, a cladding and a coating layer, wherein the fiber core and the cladding form a bare fiber, the coating layer comprises a primary coating layer and a secondary coating layer, and the primary coating layer is polyurethane coated on the surface of the bare fiber for protecting the bare fiber. The loose-tube optical fiber is formed by sleeving a sleeve layer outside the bare optical fiber, the structure of the loose-tube optical fiber is similar to that of the tight-tube optical fiber, but the bare optical fiber of the loose-tube optical fiber can move freely in the sleeve layer. The bare optical fiber in the tight-buffered optical fiber is tightly hooped by the sleeve and cannot be loosened in the tight-buffered optical fiber, and the bare optical fiber and the sleeve layer form an integral structure. Typically, tight-buffered and loose-buffered optical fibers have a nominal outer diameter of 0.9mm or 0.6 mm. The outer peripheral surface of the tight-sleeved optical fiber or the loose-sleeved optical fiber is provided with a matching part matched with the joint jack, and the tight-sleeved optical fiber or the loose-sleeved optical fiber is inserted into the joint jack when in use. The optical cable is formed by adding an outer protective layer to a single or a plurality of tight-sleeved optical fibers or loose-sleeved optical fibers.
Tight-buffered optical fiber and loose-buffered optical fiber are basic units for forming jumper wires, tail optical fiber and various indoor optical cables, the traditional optical fiber can not be protected on the mechanical property of the jacket layer, the product has no compression-resistant and bending-resistant structure protection, and has no tensile structural member, the compression-resistant and tensile properties of the product are very poor, and the problem that the product is easily crushed or pulled apart in the use process is caused.
Disclosure of Invention
The invention aims to provide an optical fiber, which solves the problem that the existing optical fiber is easy to be broken or pulled off in the using process due to poor compression and tensile properties; another object of the present invention is to provide an optical fiber cable using the optical fiber.
In order to achieve the above object, a first technical means of the optical fiber of the present invention is: the optical fiber cable comprises a bare optical fiber, wherein a jacket layer is arranged on the periphery of the bare optical fiber, a spiral armor hose and an outer sheath are sleeved on the periphery of the bare optical fiber, the bare optical fiber and the spiral armor hose are arranged adjacently, the outer sheath is sleeved on the spiral armor hose, the jacket layer is composed of the spiral armor hose and the outer sheath, and the outer sheath is a tensile sheath and is sleeved on the tensile layer on the periphery of the bare optical fiber in order to form the tensile layer.
The second technical scheme of the optical fiber of the invention is as follows: on the basis of the first technical solution of the optical fiber of the present invention, the outer sheath is made of a tensile material.
The third technical solution of the optical fiber of the present invention: on the basis of the second technical scheme of the optical fiber, the outer sheath is laid on the spiral armor hose through an extrusion molding process.
The fourth technical means of the optical fiber of the present invention: on the basis of the third technical scheme of the optical fiber, the outer sheath is made of a PLC material.
The fifth technical solution of the optical fiber of the present invention: in any one of the first to fourth aspects of the optical fiber according to the present invention, the spiral armor hose and the bare optical fiber have a movable gap therebetween.
The sixth technical means of the optical fiber of the present invention: in any one of the first to fourth aspects of the optical fiber according to the present invention, the spiral armor hose has an outer diameter of 0.6mm, and the outer sheath has an outer diameter of 0.9 mm.
In order to achieve the above object, a first technical solution of the optical cable of the present invention is: the optical fiber protection device comprises optical fibers and an optical fiber outer protection layer arranged on the periphery of the optical fibers, wherein the optical fibers comprise bare optical fibers, a jacket layer is arranged on the periphery of the bare optical fibers, a spiral armor hose and an outer jacket are sleeved on the periphery of the bare optical fibers, the bare optical fibers are arranged adjacent to the spiral armor hose, the outer jacket layer is sleeved on the spiral armor hose, the jacket layer is composed of the spiral armor hose and the outer jacket, and the outer jacket is a tensile jacket and is sleeved on the tensile layer on the periphery of the bare optical fibers by forming the.
The second technical scheme of the optical cable comprises the following steps: on the basis of the first technical scheme of the optical cable, the outer sheath is made of tensile materials.
The third technical scheme of the optical cable comprises the following steps: on the basis of the second technical scheme of the optical cable, the outer sheath is laid on the spiral armor hose through an extrusion molding process.
The fourth technical scheme of the optical cable comprises the following steps: on the basis of the third technical scheme of the optical cable, the outer sheath is made of a PLC material.
The fifth technical scheme of the optical cable comprises the following steps: in any one of the first to fourth aspects of the optical cable of the present invention, the spiral armor hose and the bare fiber have a movable gap therebetween.
The sixth technical scheme of the optical cable comprises the following steps: on the basis of any one of the first to fourth technical solutions of the optical cable of the present invention, the spiral armor hose has an outer diameter of 0.6mm, and the outer sheath has an outer diameter of 0.9 mm.
The invention has the beneficial effects that: compared with the existing optical fiber, the spiral armor hose is arranged on the periphery of the bare optical fiber of the optical fiber, the outer sheath is arranged on the periphery of the spiral armor hose, the spiral armor hose has high compression resistance and bending resistance, the jacket layer is composed of the spiral armor hose and the outer sheath, the outer sheath is made of tensile materials to form the tensile layer sleeved on the periphery of the bare optical fiber, the tensile layer is limited by the size of the optical fiber, the compression resistance and the tensile resistance of the optical fiber are improved while the size of the optical fiber is not increased as much as possible, and the problem that the existing optical fiber is easily crushed and broken in the using process due to the fact that the compression resistance and the tensile resistance are poor is solved.
Drawings
FIG. 1 is a schematic structural view of a particular embodiment of an optical fiber of the present invention;
FIG. 2 is a schematic diagram of a post-installation state of an embodiment of an optical fiber of the present invention.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings.
In the embodiment of the optical fiber of the present invention, as shown in fig. 1 and 2, the optical fiber includes a bare fiber 1 and a jacket layer covering the bare fiber 1, and the jacket layer includes a spiral armor hose 2 disposed on the periphery of the bare fiber 1 and an outer jacket 3 disposed on the periphery of the spiral armor hose 2.
In the embodiment, the outer diameter of the bare optical fiber 1 is 0.25mm, the spiral armor hose 2 is arranged adjacent to the bare optical fiber 1, the outer diameter of the spiral armor hose 2 is 0.6mm, the outer sheath 3 is laid on the spiral armor hose 2 through an extrusion molding process, and the outer diameter of the outer sheath 3 is 0.9mm of the standard size of the optical fiber. The spiral armor hose forms an optical fiber armor layer, is made of metal or non-metal materials and is used for improving the pressure resistance of the optical fiber. In this embodiment, the spiral armor hose 3 is formed by spirally winding a metal strip or a non-metal strip. In other embodiments, the spiral armor hose may also be a wire spiral wound.
The outer sheath 3 in the embodiment is a tensile sheath made of a PLC material, the outer sheath 3 forms a tensile layer sleeved on the periphery of the spiral armor hose to ensure the tensile property of optical fibers, and the outer sheath 3 is extruded on the spiral armor sheath. Because the peripheral protective layer of present bare fiber 1 does not have tensile, compressive property usually, and can make optic fibre have compressive capacity after 1 armor of bare fiber, but, the optic fibre that is limited to behind the armor still need set up the oversheath usually in order to guarantee the normal use of optic fibre, receive the standard size restriction of optic fibre, the optic fibre after the armor is difficult to increase the tensile layer, the number of piles of optic fibre behind armor and the tensile layer that sets up usually is more, the size surpasss the restriction of standard size, need peel off the oversheath of optic fibre during the use, the operation is complicated. The outer sheath 3 of the optical fiber is made of tensile material PLC, so that the optical fiber has tensile property and meets the requirement of standard size.
The optical fiber in the embodiment is a loose optical fiber, a movable gap is formed between the bare optical fiber 1 and the spiral armor hose 2, and the optical fiber can not be subjected to external force or the external force can be reduced to a bearable degree when the optical fiber is subjected to telescopic change due to the extra length of the optical fiber, so that the mechanical and physical properties of the optical fiber are ensured.
As shown in fig. 2, when the optical fiber of the present invention is installed, the outer jacket 3 of the optical fiber is inserted into the connector jack of the connector 4, and after the insertion, the outer jacket 3 and the connector 4 are fixed by gluing, so that the bare fiber 1 is aligned with the switching optical fiber 5 in the connector 4, and the assembly is completed.
The outer diameter of the spiral armor hose 2 of the optical fiber is 0.6mm, and in the occasion that 0.6mm standard optical fiber needs to be used, the optical fiber with the spiral armor hose 2 can be applied to the occasion of 0.6mm standard optical fiber after the outer sheath 3 is stripped, at the moment, the optical fiber is suitable for the occasion with weak tensile strength, and the spiral armor hose is provided with a matching surface used for being matched with a joint jack.
In a specific embodiment of the optical cable of the present invention, the optical cable includes an optical fiber and an optical fiber outer sheath disposed on a periphery of the optical fiber, where one optical fiber is provided, and the optical cable is a single-core optical cable, and in other embodiments, the optical fiber may also be multiple optical fibers, and the optical fiber in this embodiment is the same as the optical fiber in the specific embodiment, and is not described again.
In other embodiments, the outer sheath may also be made of aramid fiber or other tensile materials; in other embodiments, the outer sheath may be a tensile sheath with tensile ribs embedded therein, and the tensile sheath may be made of a common material; the outer diameter of the outer sheath can also be a standard size of 0.6mm, and can also be other non-standard sizes according to requirements, and the joint jack matched with the outer sheath can also be a non-standard size.
Claims (10)
1. Optical fiber, including bare fiber, the bare fiber periphery is equipped with the jacket layer, its characterized in that: the bare optical fiber is sleeved with a spiral armor hose and an outer sheath, the bare optical fiber and the spiral armor hose are arranged adjacently, the outer sheath is sleeved on the spiral armor hose, the jacket layer is composed of the spiral armor hose and the outer sheath, the outer sheath is a tensile sheath to form a tensile layer sleeved on the periphery of the bare optical fiber, the outer diameter of the spiral armor hose is 0.6mm, the outer diameter of the outer sheath is 0.9mm, the outer sheath can be stripped from the spiral armor hose, when the optical fiber is installed, the outer sheath of the optical fiber is inserted into a connector jack of a connector, a matching surface matched with the connector jack is arranged on the spiral armor hose, and the optical fiber with the spiral armor hose can be applied to the occasions of 0.6mm standard optical fiber after the outer sheath is stripped.
2. The optical fiber of claim 1, wherein: the outer jacket is made of a tensile material.
3. The optical fiber of claim 2, wherein: the outer sheath is laid on the spiral armor hose through an extrusion molding process.
4. The optical fiber of claim 3, wherein: the outer sheath is made of a PLC material.
5. The optical fiber according to any one of claims 1 to 4, wherein: and a movable gap is formed between the spiral armor hose and the bare optical fiber.
6. The optical cable, including optic fibre and setting at the peripheral optic fibre outer jacket of optic fibre, optic fibre includes bare fiber, and the bare fiber periphery is equipped with jacket layer, its characterized in that: the bare optical fiber is sleeved with a spiral armor hose and an outer sheath, the bare optical fiber and the spiral armor hose are arranged adjacently, the outer sheath is sleeved on the spiral armor hose, the jacket layer is composed of the spiral armor hose and the outer sheath, the outer sheath is a tensile sheath to form a tensile layer sleeved on the periphery of the bare optical fiber, the outer diameter of the spiral armor hose is 0.6mm, the outer diameter of the outer sheath is 0.9mm, the outer sheath can be stripped from the spiral armor hose, when the optical fiber is installed, the outer sheath of the optical fiber is inserted into a connector jack of a connector, a matching surface matched with the connector jack is arranged on the spiral armor hose, and the optical fiber with the spiral armor hose can be applied to the occasions of 0.6mm standard optical fiber after the outer sheath is stripped.
7. The optical cable of claim 6, wherein: the outer jacket is made of a tensile material.
8. The optical cable of claim 7, wherein: the outer sheath is laid on the spiral armor hose through an extrusion molding process.
9. The fiber optic cable of claim 8, wherein: the outer sheath is made of a PLC material.
10. Optical cable according to any one of claims 6 to 9, characterized in that: a movable gap is arranged between the spiral armor hose and the bare optical fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710868316.6A CN109541765B (en) | 2017-09-22 | 2017-09-22 | Optical fiber and optical cable using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710868316.6A CN109541765B (en) | 2017-09-22 | 2017-09-22 | Optical fiber and optical cable using same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109541765A CN109541765A (en) | 2019-03-29 |
| CN109541765B true CN109541765B (en) | 2021-07-30 |
Family
ID=65830571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710868316.6A Active CN109541765B (en) | 2017-09-22 | 2017-09-22 | Optical fiber and optical cable using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109541765B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109597170B (en) * | 2017-09-30 | 2020-09-18 | 中航光电科技股份有限公司 | Cable branching method, branching device for implementing same and cable branching structure |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2227855A (en) * | 1989-02-06 | 1990-08-08 | Telephone Cables Ltd | Optical fibre cable |
| EP0382379A2 (en) * | 1989-02-06 | 1990-08-16 | Telephone Cables Limited | Optical fibre cable core for submarine use |
| CN103149650A (en) * | 2011-12-07 | 2013-06-12 | 上海电缆研究所 | Underwater special type wire cable and optical unit structure thereof |
-
2017
- 2017-09-22 CN CN201710868316.6A patent/CN109541765B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2227855A (en) * | 1989-02-06 | 1990-08-08 | Telephone Cables Ltd | Optical fibre cable |
| EP0382379A2 (en) * | 1989-02-06 | 1990-08-16 | Telephone Cables Limited | Optical fibre cable core for submarine use |
| CN103149650A (en) * | 2011-12-07 | 2013-06-12 | 上海电缆研究所 | Underwater special type wire cable and optical unit structure thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109541765A (en) | 2019-03-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101248382B (en) | Fiber optic cabling and methods for forming the same | |
| CN103777291B (en) | Optical fiber cable | |
| CN102768883B (en) | Optical electrical hybrid cable | |
| US7123801B2 (en) | Optical fiber cable with fiber receiving jacket ducts | |
| KR102469509B1 (en) | Armored flexible fiber optic assembly | |
| EP2820462B1 (en) | Aerial optical fiber cables | |
| US7218821B2 (en) | Optical fiber cables | |
| US6836603B1 (en) | Optical fiber cables | |
| KR20090033051A (en) | Fiber optic cable | |
| US10564375B2 (en) | Optical and electrical composite multimedia cable | |
| US9020313B2 (en) | Optical cable | |
| CN112882169A (en) | Flexible armored pipeline optical cable assembly | |
| US20050141831A1 (en) | Optical fiber cables | |
| US10031303B1 (en) | Methods for forming tight buffered optical fibers using compression to facilitate subsequent loosening | |
| CN109541765B (en) | Optical fiber and optical cable using same | |
| KR20190088890A (en) | Optical cable | |
| CN109541764B (en) | Optical fiber and optical cable using the same | |
| CN210572928U (en) | Novel field emergency optical cable | |
| KR20220051570A (en) | Optic Cable | |
| JP4383458B2 (en) | Composite cable terminal, its terminal processing method, terminal fixing method, and composite cable laying method | |
| CN222421405U (en) | High-toughness bending-resistant cable | |
| JP5014460B2 (en) | Fiber optic cable | |
| CN1989433A (en) | Optical cable and method for the production thereof | |
| KR200367181Y1 (en) | Optical cable for an aerial and ftth | |
| KR100896619B1 (en) | Concentric Type Optical Cable |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |