CN105652367A - Bending-insensitive optical fiber - Google Patents
Bending-insensitive optical fiber Download PDFInfo
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- CN105652367A CN105652367A CN201610200104.6A CN201610200104A CN105652367A CN 105652367 A CN105652367 A CN 105652367A CN 201610200104 A CN201610200104 A CN 201610200104A CN 105652367 A CN105652367 A CN 105652367A
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- titanate esters
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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
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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
Abstract
The invention belongs to the technical field of optical fibers and particularly relates to a bending-insensitive optical fiber. The bending-insensitive optical fiber comprises a fiber core, a wrapping layer located outside the fiber core, a coating layer located outside the wrapping layer and a coloring layer located outside the coating layer and is characterized in that an anti-bending outer layer is further arranged between the coating layer and the coloring layer; when two ends of a section of bending-insensitive optical fiber not shorter than 10cm simultaneously penetrate cylindrical holes with the inner diameter being 2mm in the same direction, the bending-insensitive optical fiber does not break; the refraction rate of the fiber core is larger than the refraction rate of the wrapping layer, the refraction rate of the wrapping layer is larger than the refraction rate of the coating layer, and the refraction rate of the coating layer is larger than the anti-bending outer layer. The bending-insensitive optical fiber has the advantages that the optical fiber is simple in structure, easy to implement, excellent in bending resistance, wide in application range, and low in bending requirement during construction.
Description
The present invention is that name is called: a kind of optical fiber of resistance to bending, the applying date are: on 07 09th, 2014, application number are: the divisional application of 201410323728.8 patent of invention.
Technical field
The invention belongs to optical fiber technology field, especially relate to the insensitive optical fiber of a kind of bending.
Background technology
Along with Fiber to the home and the develop rapidly of fiber to the desk technology, the construction of optical-fiber network is accelerated day by day. In Optical Access Network, using at present the widest is LWPF, and its bending radius is generally recommended as 30mm left and right. But in actual use, user or workmen are usually less than this recommendation for the bending radius of optical fiber, therefore, usually there will be the fracture of optical fiber, that is to say that the resistance to bending performance of optical fiber is undesirable.
Summary of the invention
In order to address the above problem, the object of the invention is to disclose the insensitive optical fiber of a kind of bending, it can still keep good optics and machinery, environment temperature performance under lower bending radius, and it is realized by the following technical solutions.
In embodiment 1 of the present invention, the insensitive optical fiber of a kind of bending, it includes fibre core 1, be positioned at covering 2 outside fibre core, be positioned at coat 3 outside covering, be positioned at the dyed layer 5 outside coat, it is characterized in that: between coat and dyed layer, also have a bend resistance skin 4; Described cladding diameter is 123～127 μ m, fibre core/covering concentricity≤0.6 μ m, and non-circularity of cladding≤1.0%, coat diameter is 210～230 μ m, and the outer diameter of bend resistance is 225～245 μ m, and dyed layer diameter is 240～260 μ m; The described optical fiber of resistance to bending with the bending radius pine of 30mm after 100 circles, 1310nm wavelength additional attenuation≤0.05dB/Km, 1383nm wavelength additional attenuation≤0.05dB/Km, 1550nm wavelength additional attenuation≤0.1dB/Km, 1625nm wavelength additional attenuation≤0.1dB/Km; Appoint and get the optical fiber of resistance to bending that a segment length is not less than 10cm, the optical fiber of resistance to bending after simultaneously equidirectional the optical fiber of the resistance to bending two ends cylindrical hole that is 2mm through internal diameter is not ruptured; In the described optical fiber of resistance to bending, the outer field refractive index of refractive index > bend resistance of the refractive index > coat of the refractive index > covering of fibre core; Described bend resistance skin by weight, is made up of following raw material:
Acrylamido ethyl 2-aminopropyl triethoxysilane 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-hydroxyl-methyl-propiophenone: 1～2 part;
Isopropyl three (dioctyl phosphoric acid acyloxy) titanate esters: 2～5 parts;
Described dyed layer by weight, is made up 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 embodiment 2 of the present invention, the insensitive optical fiber of a kind of bending, it includes fibre core 1, be positioned at covering 2 outside fibre core, be positioned at coat 3 outside covering, be positioned at the dyed layer 5 outside coat, it is characterized in that: between fibre core and covering, also have a bend resistance internal layer 10; Described cladding diameter is 123～127 μ m, fibre core/covering concentricity≤0.6 μ m, and non-circularity of cladding≤1.0%, coat diameter is 235～250 μ m, and bend resistance internal layer diameter is 8.5～20 μ m, and dyed layer diameter is 240～260 μ m; The described optical fiber of resistance to bending with the bending radius pine of 30mm after 100 circles, 1310nm wavelength additional attenuation≤0.05dB/Km, 1383nm wavelength additional attenuation≤0.05dB/Km, 1550nm wavelength additional attenuation≤0.1dB/Km, 1625nm wavelength additional attenuation≤0.1dB/Km; Appoint and get the optical fiber of resistance to bending that a segment length is not less than 10cm, the optical fiber of resistance to bending after simultaneously equidirectional the optical fiber of the resistance to bending two ends cylindrical hole that is 2mm through internal diameter is not ruptured; In the described optical fiber of resistance to bending, the refractive index of the refractive index > coat of the refractive index > covering of the refractive index > bend resistance internal layer of fibre core; Described bend resistance internal layer by weight, is made up of following raw material:
Acrylamido ethyl 2-aminopropyl triethoxysilane 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-hydroxyl-methyl-propiophenone: 1～2 part;
Isopropyl three (dioctyl phosphoric acid acyloxy) titanate esters: 2～5 parts;
Described dyed layer by weight, is made up 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 embodiment 3 of the present invention, the insensitive optical fiber of a kind of bending, it includes fibre core 1, be positioned at covering 2 outside fibre core, be positioned at coat 3 outside covering, be positioned at the dyed layer 5 outside coat, it is characterized in that: between coat and dyed layer, also have a bend resistance skin 4, between fibre core and covering, also have a bend resistance internal layer 10; Described cladding diameter is 123～127 μ m, fibre core/covering concentricity≤0.6 μ m, and non-circularity of cladding≤1.0%, coat diameter is 210～230 μ m; Bend resistance internal layer diameter is 8.5～20 μ m; The outer diameter of bend resistance is 225～245 μ m; Dyed layer diameter is 240～260 μ m; The described optical fiber of resistance to bending with the bending radius pine of 30mm after 100 circles, 1310nm wavelength additional attenuation≤0.05dB/Km, 1383nm wavelength additional attenuation≤0.05dB/Km, 1550nm wavelength additional attenuation≤0.1dB/Km, 1625nm wavelength additional attenuation≤0.1dB/Km; Appoint and get the optical fiber of resistance to bending that a segment length is not less than 10cm, the optical fiber of resistance to bending after simultaneously equidirectional the optical fiber of the resistance to bending two ends cylindrical hole that is 2mm through internal diameter is not ruptured; In the described optical fiber of resistance to bending, the outer field refractive index of refractive index > bend resistance of the refractive index > coat of the refractive index > covering of the refractive index > bend resistance internal layer of fibre core; Described bend resistance internal layer and bend resistance skin by weight, are all made up of following raw material:
Acrylamido ethyl 2-aminopropyl triethoxysilane 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-hydroxyl-methyl-propiophenone: 1～2 part;
Isopropyl three (dioctyl phosphoric acid acyloxy) titanate esters: 2～5 parts;
Described dyed layer by weight, is made up 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, owing to having there is bend resistance internal layer or bend resistance skin or having had bend resistance internal layer and bend resistance skin concurrently, and bend resistance internal layer, bend resistance skin have high pliability, therefore, effectively protect optical fiber, make optical fiber in the situation that minor diameter bends, also reached extremely desirable resistance to bending performance; Dyed layer in the present invention is due to the formula of its uniqueness, make its coloring printing ink solidify and ductility higher, the in the situation that of alternating bending/bending repeatedly, also there are no the cracking of dyed layer, for the folding of optical fiber provides further guarantee.
The present invention is through test, except all optical indexes meet ITU, IEC and internal optical fiber standard-required, reach and times got the insensitive optical fiber of bending that a segment length is not less than 10cm, to after the simultaneously equidirectional bending insensitive optical fiber two ends cylindrical hole that is 2mm through internal diameter, bend the target that insensitive optical fiber does not rupture, therefore, workmen no longer includes the misgivings that in construction, optical fiber is easily fractureed, and constructs more convenient; And, expand widely the range of application of optical fiber, reduce the instructions for use of optical fiber.
Therefore, the present invention has following main beneficial effect: simple in structure, easy realization, have good folding quality, the scope of application wider, during for construction bending require lower.
Brief description of the drawings
Fig. 1 is the cross-sectional structure schematic diagram of the invention process example 1.
Fig. 2 is the cross-sectional structure schematic diagram of the invention process example 2.
Fig. 3 is the cross-sectional structure schematic diagram of the invention process example 4.
Detailed description of the invention
Embodiment 1
The insensitive optical fiber of a kind of bending, it includes fibre core 1, be positioned at covering 2 outside fibre core, be positioned at coat 3 outside covering, be positioned at the dyed layer 5 outside coat, it is characterized in that: between coat and dyed layer, also have a bend resistance skin 4; Described cladding diameter is 123～127 μ m, fibre core/covering concentricity≤0.6 μ m, and non-circularity of cladding≤1.0%, coat diameter is 210～230 μ m, and the outer diameter of bend resistance is 225～245 μ m, and dyed layer diameter is 240～260 μ m; The described optical fiber of resistance to bending with the bending radius pine of 30mm after 100 circles, 1310nm wavelength additional attenuation≤0.05dB/Km, 1383nm wavelength additional attenuation≤0.05dB/Km, 1550nm wavelength additional attenuation≤0.1dB/Km, 1625nm wavelength additional attenuation≤0.1dB/Km; Appoint and get the optical fiber of resistance to bending that a segment length is not less than 10cm, the optical fiber of resistance to bending after simultaneously equidirectional the optical fiber of the resistance to bending two ends cylindrical hole that is 2mm through internal diameter is not ruptured; In the described optical fiber of resistance to bending, the outer field refractive index of refractive index > bend resistance of the refractive index > coat of the refractive index > covering of fibre core; Described bend resistance skin by weight, is made up of following raw material:
Acrylamido ethyl 2-aminopropyl triethoxysilane 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-hydroxyl-methyl-propiophenone: 1～2 part;
Isopropyl three (dioctyl phosphoric acid acyloxy) titanate esters: 2～5 parts;
Described dyed layer by weight, is made up 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.
Through applicant's repetition test, find bend resistance skin by weight, best results while composition by following raw material:
Acrylamido ethyl 2-aminopropyl triethoxysilane or acrylamido propyl-triethoxysilicane: 20 parts;
Acrylic acid organic siliconresin: 30 parts;
Acrylic acid epoxy resin: 30 parts;
Acrylic polyurethane resin: 20 parts;
2-hydroxyl-methyl-propiophenone: 1.5 parts;
Isopropyl three (dioctyl phosphoric acid acyloxy) titanate esters: 4 parts;
Described dyed layer by weight, best results while composition by following raw material: optical fiber coloring ink: 99 parts; Isopropyl three (dioctyl phosphoric acid acyloxy) titanate esters: 1.5 parts; Isopropyl three (dioctylphyrophosphoric acid acyloxy) titanate esters: 1 part.
Embodiment 2
The insensitive optical fiber of a kind of bending, it includes fibre core 1, be positioned at covering 2 outside fibre core, be positioned at coat 3 outside covering, be positioned at the dyed layer 5 outside coat, it is characterized in that: between fibre core and covering, also have a bend resistance internal layer 10; Described cladding diameter is 123～127 μ m, fibre core/covering concentricity≤0.6 μ m, and non-circularity of cladding≤1.0%, coat diameter is 235～250 μ m, and bend resistance internal layer diameter is 8.5～20 μ m, and dyed layer diameter is 240～260 μ m; The described optical fiber of resistance to bending with the bending radius pine of 30mm after 100 circles, 1310nm wavelength additional attenuation≤0.05dB/Km, 1383nm wavelength additional attenuation≤0.05dB/Km, 1550nm wavelength additional attenuation≤0.1dB/Km, 1625nm wavelength additional attenuation≤0.1dB/Km; Appoint and get the optical fiber of resistance to bending that a segment length is not less than 10cm, the optical fiber of resistance to bending after simultaneously equidirectional the optical fiber of the resistance to bending two ends cylindrical hole that is 2mm through internal diameter is not ruptured; In the described optical fiber of resistance to bending, the refractive index of the refractive index > coat of the refractive index > covering of the refractive index > bend resistance internal layer of fibre core; Described bend resistance internal layer by weight, is made up of following raw material:
Acrylamido ethyl 2-aminopropyl triethoxysilane 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-hydroxyl-methyl-propiophenone: 1～2 part;
Isopropyl three (dioctyl phosphoric acid acyloxy) titanate esters: 2～5 parts;
Described dyed layer by weight, is made up 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.
Through applicant's repetition test, find bend resistance internal layer by weight, best results while composition by following raw material:
Acrylamido ethyl 2-aminopropyl triethoxysilane or acrylamido propyl-triethoxysilicane: 20 parts;
Acrylic acid organic siliconresin: 30 parts;
Acrylic acid epoxy resin: 30 parts;
Acrylic polyurethane resin: 20 parts;
2-hydroxyl-methyl-propiophenone: 1.5 parts;
Isopropyl three (dioctyl phosphoric acid acyloxy) titanate esters: 4 parts;
Described dyed layer by weight, best results while composition by following raw material: optical fiber coloring ink: 99 parts; Isopropyl three (dioctyl phosphoric acid acyloxy) titanate esters: 1.5 parts; Isopropyl three (dioctylphyrophosphoric acid acyloxy) titanate esters: 1 part.
Embodiment 3
The insensitive optical fiber of a kind of bending, it includes fibre core 1, be positioned at covering 2 outside fibre core, be positioned at coat 3 outside covering, be positioned at the dyed layer 5 outside coat, it is characterized in that: between coat and dyed layer, also have a bend resistance skin 4, between fibre core and covering, also have a bend resistance internal layer 10; Described cladding diameter is 123～127 μ m, fibre core/covering concentricity≤0.6 μ m, and non-circularity of cladding≤1.0%, coat diameter is 210～230 μ m; Bend resistance internal layer diameter is 8.5～20 μ m; The outer diameter of bend resistance is 225～245 μ m; Dyed layer diameter is 240～260 μ m; The described optical fiber of resistance to bending with the bending radius pine of 30mm after 100 circles, 1310nm wavelength additional attenuation≤0.05dB/Km, 1383nm wavelength additional attenuation≤0.05dB/Km, 1550nm wavelength additional attenuation≤0.1dB/Km, 1625nm wavelength additional attenuation≤0.1dB/Km; Appoint and get the optical fiber of resistance to bending that a segment length is not less than 10cm, the optical fiber of resistance to bending after simultaneously equidirectional the optical fiber of the resistance to bending two ends cylindrical hole that is 2mm through internal diameter is not ruptured; In the described optical fiber of resistance to bending, the outer field refractive index of refractive index > bend resistance of the refractive index > coat of the refractive index > covering of the refractive index > bend resistance internal layer of fibre core; Described bend resistance internal layer and bend resistance skin by weight, are all made up of following raw material:
Acrylamido ethyl 2-aminopropyl triethoxysilane 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-hydroxyl-methyl-propiophenone: 1～2 part;
Isopropyl three (dioctyl phosphoric acid acyloxy) titanate esters: 2～5 parts;
Described dyed layer by weight, is made up 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.
Through applicant's repetition test, find bend resistance internal layer and bend resistance skin by weight, best results while all composition by following raw material:
Acrylamido ethyl 2-aminopropyl triethoxysilane or acrylamido propyl-triethoxysilicane: 20 parts;
Acrylic acid organic siliconresin: 30 parts;
Acrylic acid epoxy resin: 30 parts;
Acrylic polyurethane resin: 20 parts;
2-hydroxyl-methyl-propiophenone: 1.5 parts;
Isopropyl three (dioctyl phosphoric acid acyloxy) titanate esters: 4 parts;
Described dyed layer by weight, best results while composition by following raw material: optical fiber coloring ink: 99 parts; Isopropyl three (dioctyl phosphoric acid acyloxy) titanate esters: 1.5 parts; Isopropyl three (dioctylphyrophosphoric acid acyloxy) titanate esters: 1 part.
In addition, applicant's discovery, below formula is also more satisfactory formula:
Formula 1: bend resistance internal layer and bend resistance skin by weight, are all made up of following raw material: acrylamido ethyl 2-aminopropyl triethoxysilane or acrylamido propyl-triethoxysilicane: 15 parts;
Acrylic acid organic siliconresin: 15 parts;
Acrylic acid epoxy resin: 15 parts;
Acrylic polyurethane resin: 15 parts;
2-hydroxyl-methyl-propiophenone: 1 part;
Isopropyl three (dioctyl phosphoric acid acyloxy) titanate esters: 2 parts;
Described dyed layer by weight, is made up 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 skin by weight, are all made up of following raw material: acrylamido ethyl 2-aminopropyl triethoxysilane or acrylamido propyl-triethoxysilicane: 25 parts;
Acrylic acid organic siliconresin: 35 parts;
Acrylic acid epoxy resin: 35 parts;
Acrylic polyurethane resin: 25 parts;
2-hydroxyl-methyl-propiophenone: 2 parts;
Isopropyl three (dioctyl phosphoric acid acyloxy) titanate esters: 5 parts;
Described dyed layer by weight, is made up 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 parts.
Formula 1 and formula 2 have also reached desirable resistance to bending effect.
Contrast done by the optical fiber in above-mentioned the present invention embodiment and the folding quality of optical fiber of the prior art by applicant, each embodiment and optical fiber of the prior art have been got 500 as sampling test, what following table was not marked scope is mean value, for sake of convenience, embodiment 1-3 is denoted as to 1#-3#, of the prior art G.652B for 4#, G.652D for 5#, G657A2 be that 6#, G657B3 are 7#, test result is as follows, wherein " √ " represents that optical fiber does not rupture, and " X " represents fibercuts; Whether rupture, optical time domain reflectometer (OTDR) and visible power instrument are tested excessively.
Therefore, obviously, optical fiber of the present invention has good bend resistance performance.
In addition, it is painted that applicant also adopts coloring printing ink of the prior art to carry out, form dyed layer, carry out painted folding optical fiber with the formula that adopts the dyed layer in the present invention and carried out folding contrast, following data are obtained, wherein, adopt three embodiment dyed layers in coloring printing ink and the present invention of prior art all the optical fiber of 25.2 kilometers, 200 dish; For sake of convenience, embodiment 1-3 is denoted as to 1#-3#, the optical fiber that three prior art colored oil corresponding to embodiment are being put is denoted as 11#-33#; Respectively wear 10 times for each sample in each embodiment; And the in the situation that of heavy burden 10N, carry out 100 circle bend tests; Fibercuts adopts OTDR or the test of visible power instrument.
Therefore,, in the application, the formula of dyed layer has also played contribution function for the folding quality of optical fiber.
In the present invention, owing to having there is bend resistance internal layer or bend resistance skin or having had bend resistance internal layer and bend resistance skin concurrently, and bend resistance internal layer, bend resistance skin have high pliability, therefore, effectively protect optical fiber, make optical fiber in the situation that minor diameter bends, also reached extremely desirable resistance to bending performance; Dyed layer in the present invention is due to the formula of its uniqueness, make its coloring printing ink solidify and ductility higher, the in the situation that of alternating bending/bending repeatedly, also there are no the cracking of dyed layer, for the folding of optical fiber provides further guarantee.
The present invention is through test, except all optical indexes meet ITU, IEC and internal optical fiber standard-required, reach and times got the insensitive optical fiber of bending that a segment length is not less than 10cm, to after the simultaneously equidirectional bending insensitive optical fiber two ends cylindrical hole that is 2mm through internal diameter, bend the target that insensitive optical fiber does not rupture, therefore, workmen no longer includes the misgivings that in construction, optical fiber is easily fractureed, and constructs more convenient; And, expand widely the range of application of optical fiber, reduce the instructions for use of optical fiber.
Therefore, the present invention has following main beneficial effect: simple in structure, easy realization, have good folding quality, the scope of application wider, during for construction bending require lower.
Claims (7)
1. the insensitive optical fiber of bending, it includes fibre core, be positioned at covering outside fibre core, be positioned at coat outside covering, be positioned at the dyed layer outside coat, it is characterized in that: between fibre core and covering, also have a bend resistance internal layer; Described cladding diameter is 123～127 μ m, fibre core/covering concentricity≤0.6 μ m, and non-circularity of cladding≤1.0%, coat diameter is 235～250 μ m, and bend resistance internal layer diameter is 8.5～20 μ m, and dyed layer diameter is 240～260 μ m; The described optical fiber of resistance to bending with the bending radius pine of 30mm after 100 circles, 1310nm wavelength additional attenuation≤0.05dB/Km, 1383nm wavelength additional attenuation≤0.05dB/Km, 1550nm wavelength additional attenuation≤0.1dB/Km, 1625nm wavelength additional attenuation≤0.1dB/Km; Appoint and get the optical fiber of resistance to bending that a segment length is not less than 10cm, the optical fiber of resistance to bending after simultaneously equidirectional the optical fiber of the resistance to bending two ends cylindrical hole that is 2mm through internal diameter is not ruptured; In the described optical fiber of resistance to bending, the refractive index of the refractive index > coat of the refractive index > covering of the refractive index > bend resistance internal layer of fibre core; Described bend resistance internal layer by weight, is made up of following raw material:
Acrylamido ethyl 2-aminopropyl triethoxysilane 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-hydroxyl-methyl-propiophenone: 1～2 part;
Isopropyl three (dioctyl phosphoric acid acyloxy) titanate esters: 2～5 parts;
Described dyed layer by weight, is made up of following raw material: commercially available 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.
2. the insensitive optical fiber of a kind of bending according to claim 1, is characterized in that described bend resistance skin by weight, is made up of following raw material:
Acrylamido ethyl 2-aminopropyl triethoxysilane or acrylamido propyl-triethoxysilicane: 20 parts;
Acrylic acid organic siliconresin: 30 parts;
Acrylic acid epoxy resin: 30 parts;
Acrylic polyurethane resin: 20 parts;
2-hydroxyl-methyl-propiophenone: 1.5 parts;
Isopropyl three (dioctyl phosphoric acid acyloxy) titanate esters: 4 parts;
Described dyed layer by weight, is made up of following raw material: commercially available optical fiber coloring ink: 99 parts; Isopropyl three (dioctyl phosphoric acid acyloxy) titanate esters: 1.5 parts; Isopropyl three (dioctylphyrophosphoric acid acyloxy) titanate esters: 1 part.
3. the insensitive optical fiber of a kind of bending according to claim 1, it is characterized in that described bend resistance skin by weight, formed by following raw material: acrylamido ethyl 2-aminopropyl triethoxysilane or acrylamido propyl-triethoxysilicane: 15 parts;
Acrylic acid organic siliconresin: 15 parts;
Acrylic acid epoxy resin: 15 parts;
Acrylic polyurethane resin: 15 parts;
2-hydroxyl-methyl-propiophenone: 1 part;
Isopropyl three (dioctyl phosphoric acid acyloxy) titanate esters: 2 parts;
Described dyed layer by weight, is made up of following raw material: commercially available 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.
4. the insensitive optical fiber of a kind of bending according to claim 1, it is characterized in that described bend resistance skin by weight, formed by following raw material: acrylamido ethyl 2-aminopropyl triethoxysilane or acrylamido propyl-triethoxysilicane: 25 parts;
Acrylic acid organic siliconresin: 35 parts;
Acrylic acid epoxy resin: 35 parts;
Acrylic polyurethane resin: 25 parts;
2-hydroxyl-methyl-propiophenone: 2 parts;
Isopropyl three (dioctyl phosphoric acid acyloxy) titanate esters: 5 parts;
Described dyed layer by weight, is made up of following raw material: commercially available 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 parts.
5. the insensitive optical fiber of a kind of bending according to claim 1, is characterized in that described bend resistance internal layer by weight, is made up of following raw material:
Acrylamido ethyl 2-aminopropyl triethoxysilane or acrylamido propyl-triethoxysilicane: 20 parts;
Acrylic acid organic siliconresin: 30 parts;
Acrylic acid epoxy resin: 30 parts;
Acrylic polyurethane resin: 20 parts;
2-hydroxyl-methyl-propiophenone: 1.5 parts;
Isopropyl three (dioctyl phosphoric acid acyloxy) titanate esters: 4 parts;
Described dyed layer by weight, is made up of following raw material: commercially available optical fiber coloring ink: 99 parts; Isopropyl three (dioctyl phosphoric acid acyloxy) titanate esters: 1.5 parts; Isopropyl three (dioctylphyrophosphoric acid acyloxy) titanate esters: 1 part.
6. the insensitive optical fiber of a kind of bending according to claim 1, it is characterized in that described bend resistance internal layer by weight, formed by following raw material: acrylamido ethyl 2-aminopropyl triethoxysilane or acrylamido propyl-triethoxysilicane: 15 parts;
Acrylic acid organic siliconresin: 15 parts;
Acrylic acid epoxy resin: 15 parts;
Acrylic polyurethane resin: 15 parts;
2-hydroxyl-methyl-propiophenone: 1 part;
Isopropyl three (dioctyl phosphoric acid acyloxy) titanate esters: 2 parts;
Described dyed layer by weight, is made up of following raw material: commercially available 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.
7. the insensitive optical fiber of a kind of bending according to claim 1, it is characterized in that described bend resistance internal layer by weight, formed by following raw material: acrylamido ethyl 2-aminopropyl triethoxysilane or acrylamido propyl-triethoxysilicane: 25 parts;
Acrylic acid organic siliconresin: 35 parts;
Acrylic acid epoxy resin: 35 parts;
Acrylic polyurethane resin: 25 parts;
2-hydroxyl-methyl-propiophenone: 2 parts;
Isopropyl three (dioctyl phosphoric acid acyloxy) titanate esters: 5 parts;
Described dyed layer by weight, is made up of following raw material: commercially available 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 parts.
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| CN113047045A (en) * | 2021-03-29 | 2021-06-29 | 中国科学院深圳先进技术研究院 | Flexible optical fiber and preparation method and application thereof |
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