CN105676346B - A kind of optical fiber resistant to bending - Google Patents
A kind of optical fiber resistant to bending Download PDFInfo
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- CN105676346B CN105676346B CN201610226890.7A CN201610226890A CN105676346B CN 105676346 B CN105676346 B CN 105676346B CN 201610226890 A CN201610226890 A CN 201610226890A CN 105676346 B CN105676346 B CN 105676346B
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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
- G02B6/02—Optical fibres with cladding with or without a coating
- G02B6/02395—Glass optical fibre with a protective coating, e.g. two layer polymer coating deposited directly on a silica cladding surface during fibre manufacture
-
- 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
Abstract
The invention belongs to technical field of optical fiber, and more particularly, to a kind of optical fiber resistant to bending, it includes fibre core, the covering except fibre core, the coat except covering, the dyed layer except coat, it is characterised in that：There is a bend resistance outer layer between coat and dyed layer；Appoint the optical fiber resistant to bending for taking a segment length to be not less than 10cm, optical fiber both ends resistant to bending are equidirectional simultaneously not broken for optical fiber resistant to bending after the cylindrical hole of 2mm across internal diameter；In the optical fiber resistant to bending, the refractive index of the refractive index ＞ bend resistance outer layers of the refractive index ＞ coats of the refractive index ＞ coverings of fibre core.The present invention has following main advantageous effect：It is simple in structure, easy to realize, is wider with excellent folding quality, use scope, is lower for being bent requirement when construction.
Description
The present invention is entitled：A kind of optical fiber resistant to bending, the applying date be：On 07 09th, 2014, application No. is：
201410323728.8 patent of invention divisional application.
Technical field
The invention belongs to technical field of optical fiber, more particularly, to a kind of optical fiber resistant to bending.
Background technology
With the rapid development of fiber to the home and fiber to the desk technology, the construction of optical-fiber network is increasingly accelerated.At present in light
In fibre access net using it is most wide be low water peak fiber, bending radius is generally recommended as 30mm or so.However, actually using
In, user or construction personnel are usually less than the recommendation for the bending radius of optical fiber, therefore, usually will appear the disconnected of optical fiber
It splits, that is to say, that the bending resistance of optical fiber is undesirable.
Invention content
To solve the above-mentioned problems, the purpose of the present invention is disclosing a kind of optical fiber resistant to bending, it can be in lower bending
Good optics and machinery, environment temperature performance are still kept under radius, it is realized using following technical scheme.
A kind of optical fiber resistant to bending, it include fibre core, the covering except fibre core, the coat except covering,
Dyed layer except coat, it is characterised in that：There is a bend resistance outer layer between coat and dyed layer；The covering
A diameter of 123~127 μm, fibre core/cald concentricity error≤0.6 μm, non-circularity of cladding≤1.0%, coat a diameter of 210
~230 μm, a diameter of 225~245 μm of bend resistance outer layer, a diameter of 240~260 μm of dyed layer；The optical fiber resistant to bending with
The bending radius pine of 30mm is after 100 circles, 1310 nm wavelength additional attenuations≤0.05dB/Km, 1383 nm wavelength additional attenuations
≤ 0.05dB/Km, 1550 nm wavelength additional attenuations≤0.1dB/Km, 1625 nm wavelength additional attenuations≤0.1dB/Km；Appoint and takes
One segment length is not less than the optical fiber resistant to bending of 10cm, and optical fiber both ends resistant to bending are equidirectional simultaneously across the cylinder that internal diameter is 2mm
Optical fiber resistant to bending is not broken behind shape hole；In the optical fiber resistant to bending, the refractive index ＞ coats of the refractive index ＞ coverings of fibre core
The refractive index of refractive index ＞ bend resistance outer layers；The bend resistance outer layer by weight, is made of following raw material：
2-aminopropyl triethoxysilane of acrylamidoethyl or acrylamido propyl-triethoxysilicane：15 parts；
Acrylic acid organic siliconresin：15 parts；
Acrylic acid epoxy resin：15 parts；
Acrylic polyurethane resin：15 parts；
2-hydroxyls-methyl-propiophenone：1 part；
Isopropyl three (dioctyl phosphoric acid acyloxy) titanate esters：2 parts；
The dyed layer by weight, is made of following raw material：Optical fiber coloring ink：98~100 parts；Isopropyl
Three（Dioctyl phosphoric acid acyloxy）Titanate esters：1 part；Isopropyl three（Dioctylphyrophosphoric acid acyloxy）Titanate esters：0.5 part.
A kind of optical fiber resistant to bending, it include fibre core, the covering except fibre core, the coat except covering,
Dyed layer except coat, it is characterised in that：There is a bend resistance outer layer between coat and dyed layer；The covering
A diameter of 123~127 μm, fibre core/cald concentricity error≤0.6 μm, non-circularity of cladding≤1.0%, coat a diameter of 210
~230 μm, a diameter of 225~245 μm of bend resistance outer layer, a diameter of 240~260 μm of dyed layer；The optical fiber resistant to bending with
The bending radius pine of 30mm is after 100 circles, 1310 nm wavelength additional attenuations≤0.05dB/Km, 1383 nm wavelength additional attenuations
≤ 0.05dB/Km, 1550 nm wavelength additional attenuations≤0.1dB/Km, 1625 nm wavelength additional attenuations≤0.1dB/Km；Appoint and takes
One segment length is not less than the optical fiber resistant to bending of 10cm, and optical fiber both ends resistant to bending are equidirectional simultaneously across the cylinder that internal diameter is 2mm
Optical fiber resistant to bending is not broken behind shape hole；In the optical fiber resistant to bending, the refractive index ＞ coats of the refractive index ＞ coverings of fibre core
The refractive index of refractive index ＞ bend resistance outer layers；The bend resistance outer layer by weight, is made of following raw material：
2-aminopropyl triethoxysilane of acrylamidoethyl or acrylamido propyl-triethoxysilicane：25 parts；
Acrylic acid organic siliconresin：35 parts；
Acrylic acid epoxy resin：35 parts；
Acrylic polyurethane resin：25 parts；
2-hydroxyls-methyl-propiophenone：2 parts；
Isopropyl three (dioctyl phosphoric acid acyloxy) titanate esters：5 parts；
The dyed layer by weight, is made of following raw material：Optical fiber coloring ink：98~100 parts；Isopropyl
Three（Dioctyl phosphoric acid acyloxy）Titanate esters：2 parts；Isopropyl three（Dioctylphyrophosphoric acid acyloxy）Titanate esters：1.5 part.
The present invention embodiment 1 in, a kind of optical fiber resistant to bending, it include fibre core 1, the covering 2 except fibre core,
Coat 3 except covering, the dyed layer 5 except coat, it is characterised in that：Between coat and dyed layer also
There is a bend resistance outer layer 4；The cladding diameter is 123~127 μm, fibre core/cald concentricity error≤0.6 μm, and covering is non-round
Degree≤1.0%, a diameter of 210~230 μm of coat, a diameter of 225~245 μm of bend resistance outer layer, dyed layer a diameter of 240~
260μm；The optical fiber resistant to bending with the bending radius pine of 30mm around 100 circle after, 1310 nm wavelength additional attenuations≤0.05dB/
Km, 1383 nm wavelength additional attenuations≤0.05dB/Km, 1550 nm wavelength additional attenuations≤0.1dB/Km, 1625 nm wavelength are attached
Add decaying≤0.1dB/Km；Appoint the optical fiber resistant to bending for taking a segment length to be not less than 10cm, by optical fiber both ends resistant to bending while Tongfang
It is not broken to optical fiber resistant to bending after being the cylindrical hole of 2mm across internal diameter；In the optical fiber resistant to bending, the refractive index ＞ packets of fibre core
The refractive index of the refractive index ＞ bend resistance outer layers of the refractive index ＞ coats of layer；The bend resistance outer layer by weight, be by
Following raw material composition：
2-aminopropyl triethoxysilane of acrylamidoethyl or acrylamido propyl-triethoxysilicane：15~
25 parts；
Acrylic acid organic siliconresin：15~35 parts；
Acrylic acid epoxy resin：15~35 parts；
Acrylic polyurethane resin：15~25 parts；
2-hydroxyls-methyl-propiophenone：1~2 part；
Isopropyl three (dioctyl phosphoric acid acyloxy) titanate esters：2~5 parts；
The dyed layer by weight, is made of following raw material：Optical fiber coloring ink：98~100 parts；Isopropyl
Three（Dioctyl phosphoric acid acyloxy）Titanate esters：1~2 part；Isopropyl three（Dioctylphyrophosphoric acid acyloxy）Titanate esters：0.5~1.5
Part.
The present invention embodiment 2 in, a kind of optical fiber resistant to bending, it include fibre core 1, the covering 2 except fibre core,
Coat 3 except covering, the dyed layer 5 except coat, it is characterised in that：Also have one between fibre core and covering
Bend resistance internal layer 10；The cladding diameter is 123~127 μm, fibre core/cald concentricity error≤0.6 μm, non-circularity of cladding≤
1.0%, a diameter of 235~250 μm of coat, a diameter of 8.5~20 μm of bend resistance internal layer, a diameter of 240~260 μm of dyed layer；
The optical fiber resistant to bending with the bending radius pine of 30mm around 100 circle after, 1310 nm wavelength additional attenuations≤0.05dB/Km, 1383
Nm wavelength additional attenuation≤0.05dB/Km, 1550 nm wavelength additional attenuations≤0.1dB/Km, 1625 nm wavelength additional attenuations≤
0.1dB/Km；Appoint the optical fiber resistant to bending for taking a segment length to be not less than 10cm, optical fiber both ends resistant to bending are equidirectional simultaneously across interior
Optical fiber resistant to bending is not broken after the cylindrical hole that diameter is 2mm；In the optical fiber resistant to bending, the refractive index ＞ bend resistance internal layers of fibre core
Refractive index ＞ coverings refractive index ＞ coats refractive index；The bend resistance internal layer is by following raw material by weight
Composition：
2-aminopropyl triethoxysilane of acrylamidoethyl or acrylamido propyl-triethoxysilicane：15~
25 parts；
Acrylic acid organic siliconresin：15~35 parts；
Acrylic acid epoxy resin：15~35 parts；
Acrylic polyurethane resin：15~25 parts；
2-hydroxyls-methyl-propiophenone：1~2 part；
Isopropyl three (dioctyl phosphoric acid acyloxy) titanate esters：2~5 parts；
The dyed layer by weight, is made of following raw material：Optical fiber coloring ink：98~100 parts；Isopropyl
Three（Dioctyl phosphoric acid acyloxy）Titanate esters：1~2 part；Isopropyl three（Dioctylphyrophosphoric acid acyloxy）Titanate esters：0.5~1.5
Part.
The present invention embodiment 3 in, a kind of optical fiber resistant to bending, it include fibre core 1, the covering 2 except fibre core,
Coat 3 except covering, the dyed layer 5 except coat, it is characterised in that：Between coat and dyed layer also
There is a bend resistance outer layer 4, also has a bend resistance internal layer 10 between fibre core and covering；The cladding diameter is 123~127 μm, fine
Core/cald concentricity error≤0.6 μm, non-circularity of cladding≤1.0%, a diameter of 210~230 μm of coat；Bend resistance internal layer is straight
Diameter is 8.5~20 μm；A diameter of 225~245 μm of bend resistance outer layer；A diameter of 240~260 μm of dyed layer；The bending resistance refractive power
With the bending radius pine of 30mm after 100 circles, 1310 nm wavelength additional attenuations≤0.05dB/Km, 1383 nm wavelength add fibre
Decaying≤0.05dB/Km, 1550 nm wavelength additional attenuations≤0.1dB/Km, 1625 nm wavelength additional attenuations≤0.1dB/Km；
Appoint the optical fiber resistant to bending for taking a segment length to be not less than 10cm, by optical fiber both ends resistant to bending it is equidirectional simultaneously across internal diameter be 2mm
Optical fiber resistant to bending is not broken after cylindrical hole；In the optical fiber resistant to bending, the refractive index of the refractive index ＞ bend resistance internal layers of fibre core
The refractive index of the refractive index ＞ bend resistance outer layers of the refractive index ＞ coats of ＞ coverings；The bend resistance internal layer and bend resistance outer layer
By weight, it is all made of following raw material：
2-aminopropyl triethoxysilane of acrylamidoethyl or acrylamido propyl-triethoxysilicane：15~
25 parts；
Acrylic acid organic siliconresin：15~35 parts；
Acrylic acid epoxy resin：15~35 parts；
Acrylic polyurethane resin：15~25 parts；
2-hydroxyls-methyl-propiophenone：1~2 part；
Isopropyl three (dioctyl phosphoric acid acyloxy) titanate esters：2~5 parts；
The dyed layer by weight, is made of following raw material：Optical fiber coloring ink：98~100 parts；Isopropyl
Three（Dioctyl phosphoric acid acyloxy）Titanate esters：1~2 part；Isopropyl three（Dioctylphyrophosphoric acid acyloxy）Titanate esters：0.5~1.5
Part.
In the present invention, due to being provided with bend resistance internal layer or bend resistance outer layer or having had both bend resistance internal layer and bend resistance
Outer layer, and there is high flexibility to be therefore effectively protected optical fiber for bend resistance internal layer, bend resistance outer layer, make optical fiber small straight
In the case that diameter is bent, highly desirable bending resistance is also reached；Dyed layer in the present invention due to its unique formula,
Solidification and the ductility higher of its coloring printing ink is set also to there are no opening for dyed layer in the case of multiple alternating bending/bending
It splits, further guarantee is provided for the folding of optical fiber.
The present invention reaches by test other than all optical indexes meet ITU, IEC and internal optical fiber standard requires
Appoint the optical fiber resistant to bending for taking a segment length to be not less than 10cm, by optical fiber both ends resistant to bending it is equidirectional simultaneously across internal diameter be 2mm
The not broken target of optical fiber resistant to bending after cylindrical hole, therefore, construction personnel there is no the misgivings that optical fiber in construction is easily broken off,
Construction is more convenient；Moreover, greatly expanding the application range of optical fiber, the requirement of optical fiber is reduced.
Therefore, the present invention has following main advantageous effect：It is simple in structure, it is easy realize, with excellent folding quality, make
It is wider, lower for being bent requirement when construction with range.
Description of the drawings
Fig. 1 is the cross-sectional structure schematic diagram of embodiment 1 of the present invention.
Fig. 2 is the cross-sectional structure schematic diagram of embodiment 2 of the present invention.
Fig. 3 is the cross-sectional structure schematic diagram of embodiment 4 of the present invention.
Specific implementation mode
Embodiment 1
A kind of optical fiber resistant to bending, it includes fibre core 1, the covering 2 except fibre core, the coat except covering
3, the dyed layer 5 except coat, it is characterised in that：There is a bend resistance outer layer 4 between coat and dyed layer；It is described
Cladding diameter is 123~127 μm, fibre core/cald concentricity error≤0.6 μm, non-circularity of cladding≤1.0%, and coat is a diameter of
210~230 μm, a diameter of 225~245 μm of bend resistance outer layer, a diameter of 240~260 μm of dyed layer；The optical fiber resistant to bending with
The bending radius pine of 30mm is after 100 circles, 1310 nm wavelength additional attenuations≤0.05dB/Km, 1383 nm wavelength additional attenuations
≤ 0.05dB/Km, 1550 nm wavelength additional attenuations≤0.1dB/Km, 1625 nm wavelength additional attenuations≤0.1dB/Km；Appoint and takes
One segment length is not less than the optical fiber resistant to bending of 10cm, and optical fiber both ends resistant to bending are equidirectional simultaneously across the cylinder that internal diameter is 2mm
Optical fiber resistant to bending is not broken behind shape hole；In the optical fiber resistant to bending, the refractive index ＞ coats of the refractive index ＞ coverings of fibre core
The refractive index of refractive index ＞ bend resistance outer layers；The bend resistance outer layer by weight, is made of following raw material：
2-aminopropyl triethoxysilane of acrylamidoethyl or acrylamido propyl-triethoxysilicane：15~
25 parts；
Acrylic acid organic siliconresin：15~35 parts；
Acrylic acid epoxy resin：15~35 parts；
Acrylic polyurethane resin：15~25 parts；
2-hydroxyls-methyl-propiophenone：1~2 part；
Isopropyl three (dioctyl phosphoric acid acyloxy) titanate esters：2~5 parts；
The dyed layer by weight, is made of following raw material：Optical fiber coloring ink：98~100 parts；Isopropyl
Three（Dioctyl phosphoric acid acyloxy）Titanate esters：1~2 part；Isopropyl three（Dioctylphyrophosphoric acid acyloxy）Titanate esters：0.5~1.5
Part.
By the repetition test of applicant, bend resistance outer layer is found by weight, effect is most when being made of following raw material
It is good：
2-aminopropyl triethoxysilane of acrylamidoethyl or acrylamido propyl-triethoxysilicane：20 parts；
Acrylic acid organic siliconresin：30 parts；
Acrylic acid epoxy resin：30 parts；
Acrylic polyurethane resin：20 parts；
2-hydroxyls-methyl-propiophenone：1.5 part；
Isopropyl three (dioctyl phosphoric acid acyloxy) titanate esters：4 parts；
The dyed layer by weight, best results when being made of following raw material：Optical fiber coloring ink：99 parts；Isopropyl
Base three（Dioctyl phosphoric acid acyloxy）Titanate esters：1.5 part；Isopropyl three（Dioctylphyrophosphoric acid acyloxy）Titanate esters：1 part.
Embodiment 2
A kind of optical fiber resistant to bending, it includes fibre core 1, the covering 2 except fibre core, the coat except covering
3, the dyed layer 5 except coat, it is characterised in that：There is a bend resistance internal layer 10 between fibre core and covering；The packet
A diameter of 123~127 μm of layer, fibre core/cald concentricity error≤0.6 μm, non-circularity of cladding≤1.0%, coat are a diameter of
235~250 μm, a diameter of 8.5~20 μm of bend resistance internal layer, a diameter of 240~260 μm of dyed layer；The optical fiber resistant to bending with
The bending radius pine of 30mm is after 100 circles, 1310 nm wavelength additional attenuations≤0.05dB/Km, 1383 nm wavelength additional attenuations
≤ 0.05dB/Km, 1550 nm wavelength additional attenuations≤0.1dB/Km, 1625 nm wavelength additional attenuations≤0.1dB/Km；Appoint and takes
One segment length is not less than the optical fiber resistant to bending of 10cm, and optical fiber both ends resistant to bending are equidirectional simultaneously across the cylinder that internal diameter is 2mm
Optical fiber resistant to bending is not broken behind shape hole；In the optical fiber resistant to bending, the refractive index ＞ packets of the refractive index ＞ bend resistance internal layers of fibre core
The refractive index of the refractive index ＞ coats of layer；The bend resistance internal layer by weight, is made of following raw material：
2-aminopropyl triethoxysilane of acrylamidoethyl or acrylamido propyl-triethoxysilicane：15~
25 parts；
Acrylic acid organic siliconresin：15~35 parts；
Acrylic acid epoxy resin：15~35 parts；
Acrylic polyurethane resin：15~25 parts；
2-hydroxyls-methyl-propiophenone：1~2 part；
Isopropyl three (dioctyl phosphoric acid acyloxy) titanate esters：2~5 parts；
The dyed layer by weight, is made of following raw material：Optical fiber coloring ink：98~100 parts；Isopropyl
Three（Dioctyl phosphoric acid acyloxy）Titanate esters：1~2 part；Isopropyl three（Dioctylphyrophosphoric acid acyloxy）Titanate esters：0.5~1.5
Part.
By the repetition test of applicant, bend resistance internal layer is found by weight, effect is most when being made of following raw material
It is good：
2-aminopropyl triethoxysilane of acrylamidoethyl or acrylamido propyl-triethoxysilicane：20 parts；
Acrylic acid organic siliconresin：30 parts；
Acrylic acid epoxy resin：30 parts；
Acrylic polyurethane resin：20 parts；
2-hydroxyls-methyl-propiophenone：1.5 part；
Isopropyl three (dioctyl phosphoric acid acyloxy) titanate esters：4 parts；
The dyed layer by weight, best results when being made of following raw material：Optical fiber coloring ink：99 parts；Isopropyl
Base three（Dioctyl phosphoric acid acyloxy）Titanate esters：1.5 part；Isopropyl three（Dioctylphyrophosphoric acid acyloxy）Titanate esters：1 part.
Embodiment 3
A kind of optical fiber resistant to bending, it includes fibre core 1, the covering 2 except fibre core, the coat except covering
3, the dyed layer 5 except coat, it is characterised in that：There are a bend resistance outer layer 4, fibre core between coat and dyed layer
There is a bend resistance internal layer 10 between covering；The cladding diameter is 123~127 μm, fibre core/cald concentricity error≤
0.6 μm, non-circularity of cladding≤1.0%, a diameter of 210~230 μm of coat；A diameter of 8.5~20 μm of bend resistance internal layer；Bending resistance
Roll over a diameter of 225~245 μm of outer layer；A diameter of 240~260 μm of dyed layer；The optical fiber resistant to bending is with the bending radius of 30mm
Pine is after 100 circles, 1310 nm wavelength additional attenuations≤0.05dB/Km, 1383 nm wavelength additional attenuations≤0.05dB/Km,
1550 nm wavelength additional attenuations≤0.1dB/Km, 1625 nm wavelength additional attenuations≤0.1dB/Km；Appointing takes a segment length not small
In the optical fiber resistant to bending of 10cm, by optical fiber both ends resistant to bending it is equidirectional simultaneously across internal diameter be the cylindrical hole of 2mm after it is resistant to bending
Optical fiber is not broken；In the optical fiber resistant to bending, the refractive index ＞ of the refractive index ＞ coverings of the refractive index ＞ bend resistance internal layers of fibre core
The refractive index of the refractive index ＞ bend resistance outer layers of coat；The bend resistance internal layer and bend resistance outer layer by weight, are all
It is made of following raw material：
2-aminopropyl triethoxysilane of acrylamidoethyl or acrylamido propyl-triethoxysilicane：15~
25 parts；
Acrylic acid organic siliconresin：15~35 parts；
Acrylic acid epoxy resin：15~35 parts；
Acrylic polyurethane resin：15~25 parts；
2-hydroxyls-methyl-propiophenone：1~2 part；
Isopropyl three (dioctyl phosphoric acid acyloxy) titanate esters：2~5 parts；
The dyed layer by weight, is made of following raw material：Optical fiber coloring ink：98~100 parts；Isopropyl
Three（Dioctyl phosphoric acid acyloxy）Titanate esters：1~2 part；Isopropyl three（Dioctylphyrophosphoric acid acyloxy）Titanate esters：0.5~1.5
Part.
By the repetition test of applicant, bend resistance internal layer and bend resistance outer layer are found by weight, all by following original
Best results when material composition：
2-aminopropyl triethoxysilane of acrylamidoethyl or acrylamido propyl-triethoxysilicane：20 parts；
Acrylic acid organic siliconresin：30 parts；
Acrylic acid epoxy resin：30 parts；
Acrylic polyurethane resin：20 parts；
2-hydroxyls-methyl-propiophenone：1.5 part；
Isopropyl three (dioctyl phosphoric acid acyloxy) titanate esters：4 parts；
The dyed layer by weight, best results when being made of following raw material：Optical fiber coloring ink：99 parts；Isopropyl
Base three（Dioctyl phosphoric acid acyloxy）Titanate esters：1.5 part；Isopropyl three（Dioctylphyrophosphoric acid acyloxy）Titanate esters：1 part.
In addition, it has been found that formula as below is also more satisfactory formula：
Formula 1：Bend resistance internal layer and bend resistance outer layer by weight, are all made of following raw material：Acrylamido second
2-aminopropyl triethoxysilane of base or acrylamido propyl-triethoxysilicane：15 parts；
Acrylic acid organic siliconresin：15 parts；
Acrylic acid epoxy resin：15 parts；
Acrylic polyurethane resin：15 parts；
2-hydroxyls-methyl-propiophenone：1 part；
Isopropyl three (dioctyl phosphoric acid acyloxy) titanate esters：2 parts；
The dyed layer by weight, is made of following raw material：Optical fiber coloring ink：98~100 parts；Isopropyl
Three（Dioctyl phosphoric acid acyloxy）Titanate esters：1 part；Isopropyl three（Dioctylphyrophosphoric acid acyloxy）Titanate esters：0.5 part.
Formula 2：Bend resistance internal layer and bend resistance outer layer by weight, are all made of following raw material：Acrylamido second
2-aminopropyl triethoxysilane of base or acrylamido propyl-triethoxysilicane：25 parts；
Acrylic acid organic siliconresin：35 parts；
Acrylic acid epoxy resin：35 parts；
Acrylic polyurethane resin：25 parts；
2-hydroxyls-methyl-propiophenone：2 parts；
Isopropyl three (dioctyl phosphoric acid acyloxy) titanate esters：5 parts；
The dyed layer by weight, is made of following raw material：Optical fiber coloring ink：98~100 parts；Isopropyl
Three（Dioctyl phosphoric acid acyloxy）Titanate esters：2 parts；Isopropyl three（Dioctylphyrophosphoric acid acyloxy）Titanate esters：1.5 part.
Formula 1 and formula 2 have also reached ideal effect resistant to bending.
Applicant has made the folding quality of optical fiber and optical fiber in the prior art in the above-mentioned embodiment of the present invention pair
Than each embodiment and optical fiber in the prior art have taken 500 to be used as sampling test, and what following table did not marked range is average
Embodiment 1-3 is denoted as 1#-3# by value for sake of convenience, it is in the prior art be G.652B 4#, be G.652D 5#,
G657A2 is 6#, G657B3 7#, and test result is as follows, wherein " √ " indicates that optical fiber is unbroken, " X " indicates fibercuts；It is disconnected
Whether splitting, optical time domain reflectometer can be crossed（OTDR）And visible power instrument is tested.
It will therefore be apparent that the optical fiber of the present invention has excellent buckle resistance energy.
In addition, applicant is also coloured using coloring printing ink in the prior art, dyed layer is formed, it is of the invention with using
In the folding optical fiber that is coloured of formula of dyed layer carried out folding comparison, obtained following data, wherein using existing
The coloring printing ink of technology and three embodiment dyed layers in the present invention all the optical fiber of 25.2 kilometers of 200 disk；For narration side
Just, embodiment 1-3 is denoted as 1#-3#, the optical fiber that the corresponding prior art colored oil of three embodiments is set point
11# -33# is not designated as it；Each sample in each embodiment is respectively worn 10 times；And in the case of heavy burden 10N, 100 are carried out
Enclose bend test；Fibercuts is tested using OTDR or visible power instrument.
Therefore, in the application, the formula of dyed layer also plays contribution function for the folding quality of optical fiber.
In the present invention, due to being provided with bend resistance internal layer or bend resistance outer layer or having had both bend resistance internal layer and bend resistance
Outer layer, and there is high flexibility to be therefore effectively protected optical fiber for bend resistance internal layer, bend resistance outer layer, make optical fiber small straight
In the case that diameter is bent, highly desirable bending resistance is also reached；Dyed layer in the present invention due to its unique formula,
Solidification and the ductility higher of its coloring printing ink is set also to there are no opening for dyed layer in the case of multiple alternating bending/bending
It splits, further guarantee is provided for the folding of optical fiber.
The present invention reaches by test other than all optical indexes meet ITU, IEC and internal optical fiber standard requires
Appoint the optical fiber resistant to bending for taking a segment length to be not less than 10cm, by optical fiber both ends resistant to bending it is equidirectional simultaneously across internal diameter be 2mm
The not broken target of optical fiber resistant to bending after cylindrical hole, therefore, construction personnel there is no the misgivings that optical fiber in construction is easily broken off,
Construction is more convenient；Moreover, greatly expanding the application range of optical fiber, the requirement of optical fiber is reduced.
Therefore, the present invention has following main advantageous effect：It is simple in structure, it is easy realize, with excellent folding quality, make
It is wider, lower for being bent requirement when construction with range.
Claims (2)
1. a kind of optical fiber resistant to bending, it includes fibre core, the covering except fibre core, the coat except covering, position
Dyed layer except coat, it is characterised in that：There is a bend resistance outer layer between coat and dyed layer；The covering is straight
Diameter is 123~127 μm, fibre core/cald concentricity error≤0.6 μm, non-circularity of cladding≤1.0%, coat a diameter of 210~
230 μm, a diameter of 225~245 μm of bend resistance outer layer, a diameter of 240~260 μm of dyed layer；The optical fiber resistant to bending is with 30mm
Bending radius pine around 100 circle after, 1310 nm wavelength additional attenuations≤0.05dB/Km, 1383 nm wavelength additional attenuations≤
0.05dB/Km, 1550 nm wavelength additional attenuations≤0.1dB/Km, 1625 nm wavelength additional attenuations≤0.1dB/Km；Appoint and takes one
Segment length is not less than the optical fiber resistant to bending of 10cm, and optical fiber both ends resistant to bending are equidirectional simultaneously across the cylinder that internal diameter is 2mm
Optical fiber resistant to bending is not broken behind hole；In the optical fiber resistant to bending, the folding of the refractive index ＞ coats of the refractive index ＞ coverings of fibre core
Penetrate the refractive index of rate ＞ bend resistance outer layers；The bend resistance outer layer by weight, is made of following raw material：
2-aminopropyl triethoxysilane of acrylamidoethyl or acrylamido propyl-triethoxysilicane：15 parts；
Acrylic acid organic siliconresin：15 parts；
Acrylic acid epoxy resin：15 parts；
Acrylic polyurethane resin：15 parts；
2-hydroxyls-methyl-propiophenone：1 part；
Isopropyl three (dioctyl phosphoric acid acyloxy) titanate esters：2 parts；
The dyed layer by weight, is made of following raw material：Optical fiber coloring ink：98~100 parts；Isopropyl three
（Dioctyl phosphoric acid acyloxy）Titanate esters：1 part；Isopropyl three（Dioctylphyrophosphoric acid acyloxy）Titanate esters：0.5 part.
2. a kind of optical fiber resistant to bending, it includes fibre core, the covering except fibre core, the coat except covering, position
Dyed layer except coat, it is characterised in that：There is a bend resistance outer layer between coat and dyed layer；The covering is straight
Diameter is 123~127 μm, fibre core/cald concentricity error≤0.6 μm, non-circularity of cladding≤1.0%, coat a diameter of 210~
230 μm, a diameter of 225~245 μm of bend resistance outer layer, a diameter of 240~260 μm of dyed layer；The optical fiber resistant to bending is with 30mm
Bending radius pine around 100 circle after, 1310 nm wavelength additional attenuations≤0.05dB/Km, 1383 nm wavelength additional attenuations≤
0.05dB/Km, 1550 nm wavelength additional attenuations≤0.1dB/Km, 1625 nm wavelength additional attenuations≤0.1dB/Km；Appoint and takes one
Segment length is not less than the optical fiber resistant to bending of 10cm, and optical fiber both ends resistant to bending are equidirectional simultaneously across the cylinder that internal diameter is 2mm
Optical fiber resistant to bending is not broken behind hole；In the optical fiber resistant to bending, the folding of the refractive index ＞ coats of the refractive index ＞ coverings of fibre core
Penetrate the refractive index of rate ＞ bend resistance outer layers；The bend resistance outer layer by weight, is made of following raw material：
2-aminopropyl triethoxysilane of acrylamidoethyl or acrylamido propyl-triethoxysilicane：25 parts；
Acrylic acid organic siliconresin：35 parts；
Acrylic acid epoxy resin：35 parts；
Acrylic polyurethane resin：25 parts；
2-hydroxyls-methyl-propiophenone：2 parts；
Isopropyl three (dioctyl phosphoric acid acyloxy) titanate esters：5 parts；
The dyed layer by weight, is made of following raw material：Optical fiber coloring ink：98~100 parts；Isopropyl three
（Dioctyl phosphoric acid acyloxy）Titanate esters：2 parts；Isopropyl three（Dioctylphyrophosphoric acid acyloxy）Titanate esters：1.5 part.
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| CN201610226890.7A CN105676346B (en) | 2014-07-09 | 2014-07-09 | A kind of optical fiber resistant to bending |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410323728.8A CN104062703B (en) | 2014-07-09 | 2014-07-09 | A kind of bending resistance refractive power is fine |
| CN201610226890.7A CN105676346B (en) | 2014-07-09 | 2014-07-09 | A kind of optical fiber resistant to bending |
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| CN201410323728.8A Division CN104062703B (en) | 2014-07-09 | 2014-07-09 | A kind of bending resistance refractive power is fine |
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| CN105676346B true CN105676346B (en) | 2018-08-31 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6171698B1 (en) * | 1999-08-19 | 2001-01-09 | Alcatel | Radiation curable coating composition for optical fibers and optical fibers coated thereby |
| CN1467519A (en) * | 2002-06-21 | 2004-01-14 | 菲特尔美国公司 | Buffered optical fibers and methods of making same |
| CN1536040A (en) * | 2003-04-07 | 2004-10-13 | 深圳市海川实业股份有限公司 | Uv light solidified paint capable of being used as optical fibre coating layer |
| CN102498074A (en) * | 2009-08-12 | 2012-06-13 | 康宁股份有限公司 | Optical fiber containing multi-layered coating system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5202943B2 (en) * | 2006-08-10 | 2013-06-05 | 古河電気工業株式会社 | Optical fiber |
-
2014
- 2014-07-09 CN CN201610226890.7A patent/CN105676346B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6171698B1 (en) * | 1999-08-19 | 2001-01-09 | Alcatel | Radiation curable coating composition for optical fibers and optical fibers coated thereby |
| CN1467519A (en) * | 2002-06-21 | 2004-01-14 | 菲特尔美国公司 | Buffered optical fibers and methods of making same |
| CN1536040A (en) * | 2003-04-07 | 2004-10-13 | 深圳市海川实业股份有限公司 | Uv light solidified paint capable of being used as optical fibre coating layer |
| CN102498074A (en) * | 2009-08-12 | 2012-06-13 | 康宁股份有限公司 | Optical fiber containing multi-layered coating system |
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| CN105676346A (en) | 2016-06-15 |
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