CN105891947A - Multi-air cladding anti-bending optical fiber and manufacturing method thereof - Google Patents
Multi-air cladding anti-bending optical fiber and manufacturing method thereof Download PDFInfo
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- CN105891947A CN105891947A CN201610380406.6A CN201610380406A CN105891947A CN 105891947 A CN105891947 A CN 105891947A CN 201610380406 A CN201610380406 A CN 201610380406A CN 105891947 A CN105891947 A CN 105891947A
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- covering
- airport
- cladding
- thin wall
- triple clad
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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
- G02B6/02295—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
- G02B6/02366—Single ring of structures, e.g. "air clad"
-
- 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
- G02B6/03605—Highest refractive index not on central axis
-
- 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
- G02B6/03616—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference
- G02B6/03688—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference having 5 or more 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
- G02B6/036—Optical fibres with cladding with or without a coating core or cladding comprising multiple layers
- G02B6/03694—Multiple layers differing in properties other than the refractive index, e.g. attenuation, diffusion, stress properties
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Surface Treatment Of Glass Fibres Or Filaments (AREA)
Abstract
The invention discloses a multi-air cladding anti-bending optical fiber and a manufacturing method thereof. The optical fiber sequentially comprises: a fiber core (1), a first cladding (2), a second cladding (3), a third cladding (4), a fourth cladding (5) and a fifth cladding (6), wherein the first cladding (2) is an all-solid silica glass cladding; the third cladding (4) is an annular air cladding internally provided with a plurality of first air holes (7) distributed at equal intervals; the second cladding (3) is an air cladding formed between the first cladding (2) and the third cladding (4); each corner of the first cladding (2) is fixedly connected with the inner wall of the third cladding (4); the fourth cladding (5) is an annular air cladding internally provided with at least one pair of double-helix supporting columns (8) symmetrically distributed. The optical fiber provided by the invention is applicable to a fiber-to-the-home application environment, has a higher bending characteristic, and facilitates wiring, storage and coiling.
Description
Technical field
The present invention relates to technical field of optical fiber, the bend insensitive fiber of a kind of many air cladding layers and manufacture thereof
Method.
Background technology
Optical fiber is typically made up of fibre core, covering and coat, and the refractive index of covering is generally below fibre core, to carry
For reflecting surface or optically isolated, also play certain mechanical protection simultaneously.Bend insensitive fiber is relative to ordinary optic fibre
Speech, is designed by optimization, significantly improves bending property, gradually popularize along with fiber-to-the-home, bending resistance
Bent optical fiber is of increased attention.The optical fiber of fiber to the home construction is positioned at crowded and narrow passage,
Alternating bending would generally arrange and deposit in connected line terminal, therefore the bending property of optical fiber be proposed
Higher requirement, it is desirable to networking work is easier to realize, more efficiently, the optical fiber used has little
The characteristics such as under bending radius, added losses are little, mechanical strength is high, it is simple to cable wiring manufacture and curling.
Summary of the invention
The goal of the invention of the present invention is: for the problem of above-mentioned existence, it is provided that resisting of a kind of many air cladding layers
Curved fiber, it is also proposed that the manufacture method of this bend insensitive fiber, it is adaptable to fiber-to-the-home applied environment,
There is higher flexural property, it is simple to connect up, receive and crimp.
The technical solution used in the present invention is as follows: the bend insensitive fiber of a kind of many air cladding layers, described optical fiber by
Interior to including successively outward: fibre core, the first covering, the second covering, triple clad, the 4th covering and the 5th bag
Layer.
Described first covering be outer wall be polygonal full silica glass covering admittedly.
Described triple clad is provided with the annular air covering of the first airport of multiple equidistant distribution in being.
Described second covering is the air cladding layer being formed between the first covering and triple clad, described first bag
Each angle of layer is all fixing with the inwall of triple clad to be connected.
Described 4th covering is provided with the annular air bag of at least one pair of symmetrical Double helix support column in being
Layer.
Described 5th covering is for consolidating the structure of the 4th covering, by double between the 4th covering and the 5th covering
Spiral branches dagger is fixing to be connected.
In the present invention, the structure of triple clad can be following two:
One, only includes one layer of annular air covering in described triple clad, in this annular air covering
The diameter of one airport need to be less than the inside and outside wall spacing of triple clad.
Its two, include in described triple clad that two-layer annular air covering, every layer of annular air covering are equipped with
The first airport in first airport of multiple equidistant distributions, and two-layer annular air covering is the most wrong
Begin to rehearse row, and the diameter of described first airport is less than the half of the inside and outside wall spacing of triple clad.
Based on any of the above-described embodiment, further, described fibre core, the first covering, the second covering, the 3rd
The refractive index contrast of covering and the 4th covering reduces successively, and the refractive index contrast of described 5th covering is higher than
Fibre core.
Based on any of the above-described embodiment, further, the middle part of the cross section of described support column is provided with symmetry
Recess.
Based on any of the above-described embodiment, further, be provided with in described 5th covering multiple in regular polygon arrange
Second airport of row, the diameter of described second airport is less than the first airport.
Based on any of the above-described embodiment, further, the outer wall of described first covering is concave edge hexagon or recessed
Limit octagon.
Based on any of the above-described embodiment, further, described optical fiber also includes being arranged on outside outermost plastics
Covering, including acrylic resin surrounding layer.
Based on any of the above-described embodiment, further, the inside and outside wall spacing of described first covering is more than the 4th bag
The inside and outside wall spacing of layer, the inside and outside wall of the second covering is smaller than the inside and outside wall spacing of the 4th covering, three guarantees
The inside and outside wall spacing of layer is more than or equal to the inside and outside wall spacing of the 4th covering, and the inside and outside wall spacing of the 5th covering is big
In the inside and outside wall spacing of the 4th covering, the inside and outside wall spacing of the 4th covering is more than the spacing of fibre core.
The invention allows for the manufacture method of bend insensitive fiber described in a kind of any of the above-described embodiment, including with
Under multiple steps:
S1, is processed into polygonal silica glass rod by described fibre core and described first covering；
S2, is inserted in S1 gained Glass rod in the first thin wall casing, and each angle of this Glass rod is thin with first
The inwall of wall sleeve pipe contacts, and forms the second covering 3 between the first thin wall casing and Glass rod；
S3, uses pipe rod accumulation mode that multiple very thin circumferences of cannon bone for forming the first airport 7 are wound on first
Around thin wall casing, then it is inserted in the second thin wall casing, between the first thin wall casing and the second thin wall casing
Form triple clad；
S4, wraps up at least one pair of symmetrical Double helix support column on the outer wall of the second thin wall casing, and
The 3rd thin wall casing on set outside support column, the both sides of this support column are thin with the second thin wall casing and the 3rd respectively
Wall sleeve pipe contacts, and forms the 4th covering between the second thin wall casing and the 3rd thin wall casing；
S5, the Glass rod prepared by S4 is inserted in the 5th covering, forms prefabricated rods；
S6, carries out wire drawing process by wire-drawer-tower to prefabricated rods, and controls the pressure in each covering at 5-25Pa,
To control the second covering, triple clad and the shape of the 4th covering；
S7, the fiber outer surface coating plastic surrounding layer after wire drawing processes.
Further, being provided with multiple attached bag layer in described 5th covering, wherein, interior attached bag layer stack is laminated with multiple
The second airport of arrangement in regular polygon, my husband's covering is full silica glass covering admittedly.
In sum, owing to have employed technique scheme, the invention has the beneficial effects as follows: the present invention proposes
The bend insensitive fiber of a kind of many air cladding layers, at least includes first to the 5th 5 covering, wherein, first
Covering may be designed as the polygon covering that outer wall is concave edge shape, the second covering be the first covering and triple clad it
Between formed multizone air cladding layer, triple clad is the air cladding layer with multiple airport, the 4th covering
For having the air cladding layer of double-helix support column, the 5th covering can design multilamellar attached bag layer, wherein interior attached bag
Layer may be designed to hexagonal air cladding layer, and my husband's covering is the covering that refractive index contrast increases successively.
The present invention is applicable to fiber-to-the-home applied environment, it may also be used for transmission high power laser, and is ensureing
On the basis of optical fiber has high mechanical properties, possesses higher flexural property, it is simple to connect up, receive and crimp.
Accompanying drawing explanation
Examples of the present invention will be described by way of reference to the accompanying drawings, wherein:
Fig. 1 is the structural representation of the embodiment one of bend insensitive fiber of the present invention；
Fig. 2 is the structural representation of the embodiment two of bend insensitive fiber of the present invention；
Fig. 3 is the structural representation of the embodiment three of bend insensitive fiber of the present invention；
Fig. 4 is radius and the schematic diagram of relative index of refraction of each covering of optical fiber of the present invention.
In figure, 1-fibre core, 2-the first covering, 3-the second covering, 4-triple clad, 5-the 4th covering, 6-
5th covering, 7-the first airport, 8-support column, 9-the second airport, 10-recess.
Detailed description of the invention
All features disclosed in this specification, or disclosed all methods or during step, except mutually
Beyond the feature repelled mutually and/or step, all can combine by any way.
Any feature disclosed in this specification (including any accessory claim, summary), unless especially
Narration, all can be by other equivalences or have the alternative features of similar purpose and replaced.That is, unless chatted especially
Stating, each feature is an example in a series of equivalence or similar characteristics.
As it is shown in figure 1, Fig. 1 describes the bend insensitive fiber of a kind of many air cladding layers, it is the most successively
Including: fibre core the 1, first covering the 2, second covering 3, triple clad the 4, the 4th covering 5 and the 5th covering
6.Wherein:
The silica glass fibre core of described fibre core 1 generally ion doping.
Described first covering 2 be outer wall be polygonal full silica glass covering admittedly.
Described triple clad 4 is provided with the annular air bag of the first airport 7 of multiple equidistant distribution in being
Layer.
Described second covering 3 is the air cladding layer being formed between the first covering 2 and triple clad 4, described
Each angle of the first covering 2 is all fixing with the inwall of triple clad 4 to be connected.
Described 4th covering 5 is provided with the annular air of at least one pair of symmetrical Double helix support column 8 in being
Covering.
Described 5th covering 6 for consolidate the structure of the 4th covering 5, the 4th covering 5 and the 5th covering 6 it
Between connect by Double helix support column 8 is fixing.
Further, the middle part of the cross section of described support column 8 is provided with the recess 10 of symmetry, the shape of this recess
Shape can be triangular in shape, it is possible to the triangle in concave edge, on the basis of the mechanical strength ensureing optical fiber, enters
One step strengthens the distortional ability of optical fiber.
In the present invention, the structure of triple clad 4 can be following two:
One, only includes one layer of annular air covering in described triple clad 4, in this annular air covering
The diameter of the first airport 7 need to be less than the inside and outside wall spacing of triple clad 4.Based on this embodiment, the present invention
The diameter of optical fiber is the most smaller, and has high flexural property, and the diameter of its first airport 7 can be 0.8
Micron, to 2.5 microns, is preferably 0.8 micron, 1.0 microns, 1.2 microns, 1.6 microns, and first is empty
The spacing of pore 7 is 0.4 micron to 2.5 microns, and the dutycycle of the first airport 7 is arranged on 30% to 60%.
Its two, include in described triple clad 4 that two-layer annular air covering, every layer of annular air covering are all provided with
There are the first airport 7 of multiple equidistant distribution, and the first airport 7 phase in two-layer annular air covering
Between Hu staggered, the diameter of described first airport 7 is less than the half of inside and outside wall spacing of triple clad 4.
As in figure 2 it is shown, based on this embodiment, the bending energy of optical fiber of the present invention is strong, and possesses higher mechanical strength,
The diameter of its first airport 7 can be 0.8 micron to 1.5 microns, is preferably 0.8 micron, 1.0 micro-
Rice, 1.2 microns, the spacing of the first airport 7 in the annular air covering of upper strata be 1.5 microns to 2.5
Micron, the spacing of the first airport 7 of lower floor's annular air covering is 0.4 micron to 2 microns, and first is empty
The dutycycle of pore 7 is arranged on 30% to 60%.
The computing formula of dutycycle is:
In formula, η is dutycycle, S1It is the cross-sectional area of the first airport, N1It is the number of the first airport,
R32It is the external diameter of triple clad, R31It it is the internal diameter of triple clad.
Based on any of the above-described embodiment, further, described fibre core the 1, first covering the 2, second covering 3,
Triple clad 4 and the 4th covering 5 reduce successively relative to the refractive index contrast of fibre core 1, described 5th bag
The refractive index contrast of layer 6 is higher than fibre core 1.
The computing formula of refractive index contrast is:
In formula, Δ n is refractive index contrast, ncFor the refractive index of fibre core, nxBe the first covering, the second covering,
The refractive index of any one covering in triple clad, the 5th covering, x ∈ [1,5].
Wherein, the attached bag layer that the 5th covering 6 can be increased successively by refractive index contrast forms, its each attached bag
The thickness of layer may be configured as same size.
The present invention can be by improving the relative index of refraction of covering, and it is curved that reduction cladding radius obtains more preferable optical fiber
Qu Xingneng, its radius and relative index of refraction are configured also dependent on specifically used environment, and the present invention first has to
Protect is structure and the structure of this optical fiber.
Based on any of the above-described embodiment, further, as it is shown on figure 3, be provided with many in described 5th covering 6
Individual the second airport 9 arranged in regular polygon, the diameter of described second airport 9 is less than the first airport
7.It is the second airport 9 of regular polygon arrangement by this so that it is special that optical fiber of the present invention has single mode birefringence
Property, it is ensured that the limitation loss of X polarization mode is sufficiently small, increases the limitation loss of Y polarization mode, makes Y polarize
Mould obtains enough decay, thus realizes monomode single-polarization and use, and, based on this second airport, also
Enhance the flexural property of optical fiber.
It addition, the second airport 9 can be circular port, it is also possible to be tri-angle-holed, tri-angle-holed when selecting
Time, this tri-angle-holed drift angle is directed to fibre core 1, makes optical fiber form total reflection.
Based on any of the above-described embodiment, further, the outer wall of described first covering 2 be concave edge hexagon or
Concave edge octagon, effectively overcomes the problem that coupling efficiency is low, reduces contact point, reduces loss.
Based on any of the above-described embodiment, further, described optical fiber also includes being arranged on outside outermost plastics
Covering, as used the acrylic resin by ultra-violet curing, refractive index is low, and high temperature resistant.
As shown in Figure 4, the radius of Fig. 4 each covering in being optical fiber of the present invention and the signal of relative index of refraction relation
Figure, in the present invention, fibre core the 1, first covering the 2, second covering 3, triple clad 4 and the 4th covering 5
Reducing successively relative to the refractive index contrast of fibre core 1, the refractive index contrast of the 5th covering 6 is higher than fibre core
1, wherein, the inside and outside wall spacing of the first covering 2 is more than the inside and outside wall spacing of the 4th covering 5, the second covering 3
Inside and outside wall be smaller than the inside and outside wall spacing of the 4th covering 5, the inside and outside wall spacing of triple clad 4 more than or
Equal to the inside and outside wall spacing of the 4th covering 5, the inside and outside wall spacing of the 5th covering 6 is interior more than the 4th covering 5
Outer wall spacing, the inside and outside wall spacing of the 4th covering 5 is more than the spacing of fibre core 1.
It addition, the 5th covering 6 may be configured as the attached bag layer that multiple refractive index contrast increases successively, every height
The inside and outside wall spacing of covering is all higher than the radius of fibre core 1.
The invention allows for the manufacture method of bend insensitive fiber described in a kind of any of the above-described embodiment, including with
Under multiple steps:
S1, is processed into polygonal silica glass rod by described fibre core 1 and described first covering 2；
S2, is inserted in S1 gained Glass rod in the first thin wall casing, and each angle of this Glass rod is thin with first
The inwall of wall sleeve pipe contacts, and forms the second covering 3 between the first thin wall casing and Glass rod；
S3, uses pipe rod accumulation mode that multiple very thin circumferences of cannon bone for forming the first airport 7 are wound on first
Around thin wall casing, then it is inserted in the second thin wall casing, between the first thin wall casing and the second thin wall casing
Form triple clad 4；
S4, wraps up at least one pair of symmetrical Double helix support column 8 on the outer wall of the second thin wall casing,
And on the outer set of support column 8 the 3rd thin wall casing, the both sides of this support column 8 respectively with the second thin wall casing and
3rd thin wall casing contacts, and forms the 4th covering 5 between the second thin wall casing and the 3rd thin wall casing；
S5, the Glass rod prepared by S4 is inserted in the 5th covering 6, forms prefabricated rods；
S6, carries out wire drawing process by wire-drawer-tower to prefabricated rods, and controls the pressure in each covering at 5-25Pa,
To control the second covering 3, triple clad 4 and the shape of the 4th covering 5；
S7, the fiber outer surface coating plastic surrounding layer after wire drawing processes.
Further, being provided with multiple attached bag layer in described 5th covering 6, wherein, interior attached bag layer stack is laminated with many
Individual the second airport 9 arranged in regular polygon, my husband's covering is full silica glass covering admittedly.
The invention is not limited in aforesaid detailed description of the invention.The present invention expand to any in this manual
Disclose new feature or any new combination, and disclose arbitrary new method or the step of process or any
New combination.
Claims (10)
1. the bend insensitive fiber of air cladding layer more than a kind, it is characterised in that described optical fiber includes the most successively: fibre core (1), the first covering (2), the second covering (3), triple clad (4), the 4th covering (5) and the 5th covering (6)；
Described first covering (2) be outer wall be polygonal full silica glass covering admittedly；
Described triple clad (4) is provided with the annular air covering of first airport (7) of multiple equidistant distribution in being；
Described second covering (3) is for be formed at the air cladding layer between the first covering (2) and triple clad (4), and each angle of described first covering (2) is all fixing with the inwall of triple clad (4) to be connected；
Described 4th covering (5) is provided with the annular air covering of at least one pair of symmetrical Double helix support column (8) in being.
The bend insensitive fiber of a kind of many air cladding layers the most according to claim 1, it is characterised in that: the diameter of described first airport (7) is less than the inside and outside wall spacing of triple clad (4).
The bend insensitive fiber of a kind of many air cladding layers the most according to claim 1, it is characterized in that: described triple clad (4) includes two-layer annular air covering, every layer of annular air covering is equipped with first airport (7) of multiple equidistant distribution, and the first airport (7) in two-layer annular air covering is the most staggered, the diameter of described first airport (7) is less than the half of the inside and outside wall spacing of triple clad (4).
The bend insensitive fiber of a kind of many air cladding layers the most according to claim 1, it is characterized in that: the refractive index contrast of described fibre core (1), the first covering (2), the second covering (3), triple clad (4) and the 4th covering (5) reduces successively, the refractive index contrast of described 5th covering (6) is higher than fibre core (1).
The bend insensitive fiber of a kind of many air cladding layers the most according to claim 1, it is characterised in that: the middle part of the cross section of described support column (8) is provided with the recess (10) of symmetry.
The bend insensitive fiber of a kind of many air cladding layers the most according to claim 1, it is characterized in that: be provided with multiple the second airport (9) arranged in regular polygon in described 5th covering (6), the diameter of described second airport (9) is less than the first airport (7).
The bend insensitive fiber of a kind of many air cladding layers the most according to claim 1, it is characterised in that: the outer wall of described first covering (2) is concave edge hexagon or concave edge octagon.
The bend insensitive fiber of a kind of many air cladding layers the most according to claim 1, it is characterized in that: the inside and outside wall spacing of described first covering (2) is more than the inside and outside wall spacing of the 4th covering (5), the inside and outside wall of the second covering (3) is smaller than the inside and outside wall spacing of the 4th covering (5), the inside and outside wall spacing of triple clad (4) is more than or equal to the inside and outside wall spacing of the 4th covering (5), the inside and outside wall spacing of the 5th covering (6) is more than the inside and outside wall spacing of the 4th covering (5), and the inside and outside wall spacing of the 4th covering (5) is more than the spacing of fibre core (1).
9. the manufacture method of bend insensitive fiber as described in any one of claim 1-8, it is characterised in that include following multiple step:
S1, is processed into polygonal silica glass rod by described fibre core (1) and described first covering (2)；
S2, is inserted in S1 gained Glass rod in the first thin wall casing, and each angle of this Glass rod contacts with the inwall of the first thin wall casing, forms the second covering (3) between the first thin wall casing and Glass rod；
S3, uses pipe rod accumulation mode to be wound on around the first thin wall casing by multiple very thin circumferences of cannon bone for forming the first airport (7), then is inserted in the second thin wall casing, form triple clad (4) between the first thin wall casing and the second thin wall casing；
S4, the outer wall of the second thin wall casing wraps up at least one pair of symmetrical Double helix support column (8), and put the 3rd thin wall casing outside support column (8), the both sides of this support column (8) contact with the second thin wall casing and the 3rd thin wall casing respectively, and form the 4th covering (5) between the second thin wall casing and the 3rd thin wall casing；
S5, the Glass rod prepared by S4 is inserted in the 5th covering (6), forms prefabricated rods；
S6, carries out wire drawing process by wire-drawer-tower to prefabricated rods, and controls the pressure in each covering at 5-25Pa, to control the second covering (3), triple clad (4) and the shape of the 4th covering (5)；
S7, the fiber outer surface coating plastic surrounding layer after wire drawing processes.
The manufacture method of bend insensitive fiber the most according to claim 9, it is characterized in that: in described 5th covering (6), be provided with multiple attached bag layer, wherein, interior attached bag layer stack is laminated with multiple the second airport (9) arranged in regular polygon, and my husband's covering is full silica glass covering admittedly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610380406.6A CN105891947A (en) | 2016-05-31 | 2016-05-31 | Multi-air cladding anti-bending optical fiber and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610380406.6A CN105891947A (en) | 2016-05-31 | 2016-05-31 | Multi-air cladding anti-bending optical fiber and manufacturing method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN105891947A true CN105891947A (en) | 2016-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610380406.6A Withdrawn CN105891947A (en) | 2016-05-31 | 2016-05-31 | Multi-air cladding anti-bending optical fiber and manufacturing method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110133797A (en) * | 2019-05-30 | 2019-08-16 | 山东光韵智能科技有限公司 | A kind of colorful optical fiber of three layers of wave liner of visible light and its manufacturing method |
| CN110221382A (en) * | 2019-06-12 | 2019-09-10 | 烽火通信科技股份有限公司 | A kind of single mode optical fiber of ultralow attenuation large effective area |
| CN111580230A (en) * | 2020-03-02 | 2020-08-25 | 华中科技大学 | Flexible optical fiber, preparation method and drivable laser scalpel based on optical fiber |
| CN113514919A (en) * | 2021-03-04 | 2021-10-19 | 华南师范大学 | Braille-lattice hollow anti-resonance optical fiber |
| RU2769089C9 (en) * | 2019-06-12 | 2022-09-30 | Файберхоум Телекоммьюникейшн Текнолоджиз Ко., Лтд | Single-mode optical fibre with ultra-low attenuation and large effective area |
-
2016
- 2016-05-31 CN CN201610380406.6A patent/CN105891947A/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110133797A (en) * | 2019-05-30 | 2019-08-16 | 山东光韵智能科技有限公司 | A kind of colorful optical fiber of three layers of wave liner of visible light and its manufacturing method |
| CN110221382A (en) * | 2019-06-12 | 2019-09-10 | 烽火通信科技股份有限公司 | A kind of single mode optical fiber of ultralow attenuation large effective area |
| WO2020248552A1 (en) * | 2019-06-12 | 2020-12-17 | 烽火通信科技股份有限公司 | Ultra-low attenuation large effective area single-mode optical fibre |
| RU2769089C1 (en) * | 2019-06-12 | 2022-03-28 | Файберхоум Телекоммьюникейшн Текнолоджиз Ко., Лтд | Single-mode optical fibre with ultra-low attenuation and large effective area |
| RU2769089C9 (en) * | 2019-06-12 | 2022-09-30 | Файберхоум Телекоммьюникейшн Текнолоджиз Ко., Лтд | Single-mode optical fibre with ultra-low attenuation and large effective area |
| CN111580230A (en) * | 2020-03-02 | 2020-08-25 | 华中科技大学 | Flexible optical fiber, preparation method and drivable laser scalpel based on optical fiber |
| CN113514919A (en) * | 2021-03-04 | 2021-10-19 | 华南师范大学 | Braille-lattice hollow anti-resonance optical fiber |
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