CN105629376A - Enhanced fiber - Google Patents
Enhanced fiber Download PDFInfo
- Publication number
- CN105629376A CN105629376A CN201610199578.3A CN201610199578A CN105629376A CN 105629376 A CN105629376 A CN 105629376A CN 201610199578 A CN201610199578 A CN 201610199578A CN 105629376 A CN105629376 A CN 105629376A
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- CN
- China
- Prior art keywords
- fibre core
- layer
- core
- fiber
- reinforced fiber
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- 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.)
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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
- G02B6/02—Optical fibres with cladding with or without a coating
- G02B6/036—Optical fibres with cladding with or without a coating core or cladding comprising multiple layers
-
- 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
- G02B6/02—Optical fibres with cladding with or without a coating
- G02B6/02033—Core or cladding made from organic material, e.g. polymeric material
-
- 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
- G02B6/02—Optical fibres with cladding with or without a coating
- G02B6/02295—Microstructured optical fibre
- G02B6/02314—Plurality of longitudinal structures extending along optical fibre axis, e.g. holes
- G02B6/02342—Plurality of longitudinal structures extending along optical fibre axis, e.g. holes characterised by cladding features, i.e. light confining region
- G02B6/02347—Longitudinal structures arranged to form a regular periodic lattice, e.g. triangular, square, honeycomb unit cell repeated throughout cladding
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The present invention relates to an enhanced fiber. The enhanced fiber comprises a fiber core and a cladding; the fiber core is composed of two fiber cores with different refractive indexes through doping, and the cladding winds the outer periphery of the fiber core; the cladding includes a one-time coated layer and a twice coated layer which are formed by ultraviolet ray curing type resin, and the ultraviolet ray curing type resin includes urethane acrylate and a photoinitiator, wherein the polyisocyanate component in the urethane acrylate is aromatic polyisocyanate; an enhanced core layer is arranged between the one-time coated layer and the fiber core, the periphery of the enhanced core layer is combined and wrapped in the fiber core of the one-time coated layer; the twice coated layer has a plurality of holes extending along the central shaft of the fiber, the residual stress in the internal areas at the inner sides of the circumcircles of the holes are compression press, and the compression press is larger than 20MPa; and the enhanced layer has good yellowing resistance, small transmission loss and high breaking ability.
Description
Technical field
The present invention relates to optical communication optical fiber technology, in particular to a kind of reinforced fiber.
Background technology
The general structure of optical fiber is the Primary coating layer forming soft matter at the outer surface of bare glass, forms the secondary coating of hard again in its periphery. As the material used in Primary coating layer and secondary coating, adopt ultraviolet curing resin more; As the ultraviolet curing resin used in the coating material of optical fiber, known urethane acrylate, but existing coating optical fiber heat, light, its coating material easily goes bad, if placed for a long time when the illumination such as outdoor or luminescent lamp are penetrated or under high hot condition, then occurring yellow change to wait colour developing or variable color, so-called weathering resistance, thermotolerance are not good. This be due to optical fiber be irradiated by light time, remain in the decomposition of light-initiated dose in coating, produce free radical, alos is become. Further, it is known that have the optical fiber in multiple holes that the central shaft along optical fiber extends, compared with the solid core fibres without this kind of hole, the optical fiber with this kind of hole can have more characteristic.
Summary of the invention
The technical problem to be solved in the present invention is, it is provided that the optical fiber that a kind of yellowing resistance is good and the little resistance to fracture of transmission loss is strong.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is, this reinforced fiber comprises fibre core and covering, described fibre core is made up of the fibre core doping of two kinds of different refractivities, described covering in the outside of fibre core around described fibre core, described covering comprises the Primary coating layer and secondary coating that are formed by ultraviolet curing resin, and the polymeric polyisocyanate composition that described ultraviolet curing resin contains in urethane acrylate and light-initiated dose and this urethane acrylate is aromatic series class polymeric polyisocyanate; It is provided with strengthening core layer, the peripheral stranded and fibre core that is wrapped in described Primary coating layer of described strengthening core layer between described Primary coating layer and described fibre core; Described secondary coating has multiple holes that the central shaft along optical fiber extends, and the unrelieved stress in interior region inside the circumscribed circle in described hole is stress under compression, and described stress under compression is more than 20MPa.
Adopt technique scheme, by adopting the fibre core of the fibre core doping composition of two kinds of different refractivities can adapt to the transmission of different distance, make transmission loss little; Covering adopt Primary coating layer that ultraviolet curing resin formed and secondary coating this optical fiber can be made to have good yellowing resistance; In multiple holes that covering extends along the central shaft of optical fiber, the toughness of this optical fiber can be strengthened, make optical fiber not frangibility, with the volumetric molar concentration height of the haloid element being positioned at around interior region of the molar concentration rate covering of the haloid element in the interior region inside the circumscribed circle of hole when; In interior region, codoped has chlorine, iodine and fluorine; Strengthening core layer it is provided with, the peripheral stranded and fibre core that is wrapped in described Primary coating layer of described strengthening core layer between Primary coating layer and described fibre core; The toughness that can strengthen optical fiber is set by such, avoids fibercuts.
Improve further and it is; in described Primary coating layer light-initiated dose is 2; 4; 6-trimethylbenzoyldiphenyl oxide compound; in described secondary coating light-initiated dose is 2; in the composition of 4,6-trimethylbenzoyldiphenyl oxide compound and methyl phenyl ketone photoinitiator and coating material 1g, the molar content of unreacted light-initiated dose is less than 2.8 �� 10-3, described methyl phenyl ketone photoinitiator is 1-hydroxycyclohexyl phenyl ketone. Improve further and it is, described strengthening core layer is radially arranged at intervals with some separate stiffening webs.
Improving further and be, described stiffening web is in cross type in terms of cross section, and described strengthening core layer is positioned at mid-way.
Improve further and it is, wherein a kind of fibre core doped with Ge, another kind of fibre core doped with Al.
Improving further and be, described aromatic series class polymeric polyisocyanate is tolylene diisocyanate.
Compared with prior art, the invention has the beneficial effects as follows: the yellowing resistance of this reinforced fiber is good and the little resistance to fracture of transmission loss is strong.
Accompanying drawing explanation
In order to make the content of the present invention more easily be clearly understood, below according to specific embodiment and by reference to the accompanying drawings, the present invention is further detailed explanation:
Fig. 1 is the structure iron of reinforced fiber of the present invention;
1-secondary coating; 2-Primary coating layer; 201-hole; 3-strengthening core layer; 301-stiffening web; 4-fibre core.
Embodiment
Embodiment 1: as shown in Figure 1, this reinforced fiber comprises fibre core 4 and covering, described fibre core 4 is made up of fibre core 4 doping of two kinds of different refractivities, described covering in the outside of fibre core 4 around described fibre core 4, described covering comprises the Primary coating layer 2 and secondary coating 1 that are formed by ultraviolet curing resin, and the polymeric polyisocyanate composition that described ultraviolet curing resin contains in urethane acrylate and light-initiated dose and this urethane acrylate is aromatic series class polymeric polyisocyanate; It is provided with strengthening core layer 3, the peripheral stranded and fibre core 4 that is wrapped in described Primary coating layer 2 of described strengthening core layer between described Primary coating layer 2 and described fibre core 4; Described strengthening core layer 3 is radially arranged at intervals with some separate stiffening webs 301; Described stiffening web 301 is in cross type in terms of cross section, and described strengthening core layer 3 is positioned at mid-way; Described secondary coated 1 layer of multiple hole 201 that there is the central shaft along optical fiber and extend, the unrelieved stress in interior region inside the circumscribed circle in described hole 201 is stress under compression, described stress under compression is more than 15MPa, with the volumetric molar concentration height of the haloid element being positioned at around interior region of the molar concentration rate covering of the haloid element in the interior region inside the circumscribed circle of hole when 201; In interior region, codoped has chlorine, iodine and fluorine; Wherein a kind of fibre core doped with Ge; another kind of fibre core doped with Al; in described Primary coating layer 2 light-initiated dose is 2; 4; 6-trimethylbenzoyldiphenyl oxide compound; the molar content that in described secondary coating 1 light-initiated dose is in the composition of 2,4,6-trimethylbenzoyldiphenyl oxide compound and methyl phenyl ketone photoinitiator and coating material 1g unreacted light-initiated dose is less than 2.8 �� 10-3, described methyl phenyl ketone photoinitiator is 1-hydroxycyclohexyl phenyl ketone; Described aromatic series class polymeric polyisocyanate is tolylene diisocyanate, when by stretching optical fiber prefabricated component manufacture hole help optical fiber time, it is important that in stretch processing, accurately control aperture; In order to control aperture in stretch processing, it is necessary to the internal pressure of stable hole; Also need to perform high tensile to stretch, thus perform stretching when the viscosity of glass is relatively high; But, when performing high tensile and stretch, tensile stress easily remains in core layer, and the tensile stress remained may cause the decrease in intensity of glass and transmission loss is increased.
Above-described specific embodiment; the object of the present invention, technical scheme and useful effect have been further described; it is it should be understood that; the foregoing is only specific embodiments of the invention; it is not limited to the present invention; within the spirit and principles in the present invention all, any amendment of making, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. a reinforced fiber, comprise fibre core and covering, it is characterized in that, described fibre core is made up of the fibre core doping of two kinds of different refractivities, described covering in the outside of fibre core around described fibre core, described covering comprises the Primary coating layer and secondary coating that are formed by ultraviolet curing resin, and the polymeric polyisocyanate composition that described ultraviolet curing resin contains in urethane acrylate and light-initiated dose and this urethane acrylate is aromatic series class polymeric polyisocyanate; It is provided with strengthening core layer, described strengthening core layer peripheral stranded the fibre core that is wrapped in described Primary coating layer between described Primary coating layer and described fibre core; Described secondary coating has multiple holes that the central shaft along optical fiber extends, and the unrelieved stress in interior region inside the circumscribed circle in described hole is stress under compression, and described stress under compression is more than 15MPa.
2. reinforced fiber according to claim 1; it is characterized in that; in described Primary coating layer light-initiated dose is 2; 4; 6-trimethylbenzoyldiphenyl oxide compound; the molar content that in described secondary coating light-initiated dose is in the composition of 2,4,6-trimethylbenzoyldiphenyl oxide compound and methyl phenyl ketone photoinitiator and coating material 1g unreacted light-initiated dose is less than 2.8 �� 10-3, described methyl phenyl ketone photoinitiator is 1-hydroxycyclohexyl phenyl ketone.
3. reinforced fiber according to claim 2, it is characterised in that, described strengthening core layer is radially arranged at intervals with some separate stiffening webs.
4. reinforced fiber according to claim 3, it is characterised in that, described stiffening web is in cross type in terms of cross section, and described strengthening core layer is positioned at mid-way.
5. reinforced fiber according to claim 3 or 4, it is characterised in that, wherein a kind of fibre core doped with Ge, another kind of fibre core doped with Al.
6. reinforced fiber according to claim 5, it is characterised in that, described aromatic series class polymeric polyisocyanate is tolylene diisocyanate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610199578.3A CN105629376A (en) | 2016-04-04 | 2016-04-04 | Enhanced fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610199578.3A CN105629376A (en) | 2016-04-04 | 2016-04-04 | Enhanced fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105629376A true CN105629376A (en) | 2016-06-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610199578.3A Pending CN105629376A (en) | 2016-04-04 | 2016-04-04 | Enhanced fiber |
Country Status (1)
| Country | Link |
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| CN (1) | CN105629376A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108333672A (en) * | 2018-01-04 | 2018-07-27 | 南京邮电大学 | A kind of larger-mode-area single-mode fiber of heterogeneous spiral cladding structure |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6577440B2 (en) * | 1999-05-20 | 2003-06-10 | Sumitomo Electric Industries, Ltd. | Optical fiber for optical amplifier and fiber optic amplifier |
| CN200962153Y (en) * | 2006-09-28 | 2007-10-17 | 江苏通光光电子有限公司 | Ultraviolet solidifying silicone coating control and guide optical cable |
| CN200983287Y (en) * | 2006-12-08 | 2007-11-28 | 昆山火凤凰线缆有限公司 | Shielding photoelectrical broadband mixing cable |
| CN101196593A (en) * | 2006-12-04 | 2008-06-11 | 德雷卡通信技术公司 | Optical fiber |
| EP1975655A2 (en) * | 2007-03-27 | 2008-10-01 | Imra America, Inc. | Ultra high numerical aperture optical fibers |
| CN102122546A (en) * | 2010-10-13 | 2011-07-13 | 成都亨通光通信有限公司 | Mixed optical cable with cross support |
| CN202145241U (en) * | 2011-08-04 | 2012-02-15 | 常州凌凯特电子科技有限公司 | Fiber jumper wire of high strength |
| CN102354019A (en) * | 2011-11-11 | 2012-02-15 | 烽火通信科技股份有限公司 | Bent non-sensitive micro-structured optical fiber and production method thereof |
| CN101312923B (en) * | 2006-03-23 | 2012-07-04 | 古河电气工业株式会社 | Optical fiber |
| CN102998739A (en) * | 2011-09-14 | 2013-03-27 | 住友电气工业株式会社 | Optical fiber |
| CN103093887A (en) * | 2013-01-28 | 2013-05-08 | 蒋菊生 | Cross-shaped framework and cables with cross-shaped framework adopted |
| CN203519900U (en) * | 2013-11-11 | 2014-04-02 | 杭州富通通信技术股份有限公司 | Air-blowing optical cable |
-
2016
- 2016-04-04 CN CN201610199578.3A patent/CN105629376A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6577440B2 (en) * | 1999-05-20 | 2003-06-10 | Sumitomo Electric Industries, Ltd. | Optical fiber for optical amplifier and fiber optic amplifier |
| CN101312923B (en) * | 2006-03-23 | 2012-07-04 | 古河电气工业株式会社 | Optical fiber |
| CN200962153Y (en) * | 2006-09-28 | 2007-10-17 | 江苏通光光电子有限公司 | Ultraviolet solidifying silicone coating control and guide optical cable |
| CN101196593A (en) * | 2006-12-04 | 2008-06-11 | 德雷卡通信技术公司 | Optical fiber |
| CN200983287Y (en) * | 2006-12-08 | 2007-11-28 | 昆山火凤凰线缆有限公司 | Shielding photoelectrical broadband mixing cable |
| EP1975655A2 (en) * | 2007-03-27 | 2008-10-01 | Imra America, Inc. | Ultra high numerical aperture optical fibers |
| CN102122546A (en) * | 2010-10-13 | 2011-07-13 | 成都亨通光通信有限公司 | Mixed optical cable with cross support |
| CN202145241U (en) * | 2011-08-04 | 2012-02-15 | 常州凌凯特电子科技有限公司 | Fiber jumper wire of high strength |
| CN102998739A (en) * | 2011-09-14 | 2013-03-27 | 住友电气工业株式会社 | Optical fiber |
| CN102354019A (en) * | 2011-11-11 | 2012-02-15 | 烽火通信科技股份有限公司 | Bent non-sensitive micro-structured optical fiber and production method thereof |
| CN103093887A (en) * | 2013-01-28 | 2013-05-08 | 蒋菊生 | Cross-shaped framework and cables with cross-shaped framework adopted |
| CN203519900U (en) * | 2013-11-11 | 2014-04-02 | 杭州富通通信技术股份有限公司 | Air-blowing optical cable |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108333672A (en) * | 2018-01-04 | 2018-07-27 | 南京邮电大学 | A kind of larger-mode-area single-mode fiber of heterogeneous spiral cladding structure |
| CN108333672B (en) * | 2018-01-04 | 2020-01-17 | 南京邮电大学 | Large-mode-field single-mode fiber with heterogeneous spiral cladding structure |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160601 |
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| RJ01 | Rejection of invention patent application after publication |