CN105137534B - A kind of miniaturized device single mode optical fiber - Google Patents
A kind of miniaturized device single mode optical fiber Download PDFInfo
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- CN105137534B CN105137534B CN201510598968.3A CN201510598968A CN105137534B CN 105137534 B CN105137534 B CN 105137534B CN 201510598968 A CN201510598968 A CN 201510598968A CN 105137534 B CN105137534 B CN 105137534B
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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
- G02B6/036—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
- G02B6/03638—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 3 layers only
- G02B6/03644—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 3 layers only arranged - + -
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Abstract
The invention discloses a kind of miniaturized device single mode optical fibers, include sandwich layer and covering, and sandwich layer is the silica (SiO for mixing germanium (Ge) and fluorine (F)2) quartz glass, the diameter Dcore of sandwich layer is 6.5 μm to 7.5 μm, ranging from the 0.70% to 0.75% of the relative index of refraction Δ 1 of sandwich layer；Covering has 3 layerings, is followed successively by first layer, the second layering from inside to outside, third layering, wherein first layer are fluorine doped silica quartz glass, and second is layered as germanium-doped silica quartz glass, and third is layered as pure silicon dioxide quartz glass layer；The diameter Dclad of covering is 79 μm to 81 μm.The cutoff wavelength of optical fiber of the present invention is 1300nm 1460nm, and operating wavelength range 1550nm, MFD are 7.0 μm 7.6 μm, and optical fiber attenuation is less than 0.26dB/km (in 1550nm).Optical fiber of the present invention has 80 μm of cladding diameters and 165 μm of coating diameters, can preferably meet the needs of device miniaturization.With preferable bending resistance, macrobending loss is less than 0.02dB/ (Φ 10mm25 circles)；There is good bending resistance, macrobending loss is less than 0.03dB/ (Φ 15mm400 circles) when being coiled into small size device.
Description
Technical field
The invention belongs to technical field of optical fiber, more particularly, to a kind of miniaturized device single mode optical fiber.
Background technology
Single mode optical fiber is with light weight, size is small, electromagnetism interference, transmission rate is fast, information capacity is big and transmission range
The advantages that remote.Worldwide, G.652 single mode optical fiber has been laid with and in large quantities applied among optical communication network.With
The continuous development of special optical fiber and its fiber optic applications technology, field of the optical fiber other than general communication have obtained increasingly wider
General application.In special optical fibre device, purpose is used in order to reach, need it is a kind of can have in the environment it is stable
The optical fiber of transmission performance, and common G.652 single mode optical fiber can not for a long time work normally under small size particular device.
The bending resistance of optical fiber is closely related with the technologies such as the material structure of optical fiber, preparation process.Common bending resistance
Bent optical fiber generally in order to match with common single mode optical fiber, and geometry, doping concentration in optical fiber etc. as possible with
Ordinary optic fibre is consistent, matches each other so as to cause Fiber Optical Parametric, to adapt to the universal performance of optical fiber.It is special in hydrophone etc.
Application scenario, optical fiber pursue small-bend radius and extremely more winding number of turns, and the requirement to mode field diameter etc. do not pursue with it is general
The consistency of logical single mode optical fiber.In order to improve the bending resistance of optical fiber, sandwich layer can adulterate the germanium (Ge) of higher concentration, in order to subtract
Few core material and difference of the clad material in terms of the material properties such as viscosity, coefficient of thermal expansion, and also to adjust optical fiber
Optical index range, sandwich layer and covering increase doping fluorine finite region, reduce drawing process in residual stress, it is excellent
Change transmission performance.
In the case where device size requires very little, in order to accommodate more optical fiber, fibre diameter is needed to reduce and light
It is constant to learn performance, therefore fiber geometric is changed by special process, the core structure of optical fiber is remained unchanged and reduces packet
Layer diameter, and coating diameter is also accordingly reduced, then can meet the needs of device miniaturization.
In patent CN202256757U and CN102213791B, put forward a series of polarization maintaining optical fibre of thin footpaths, but it is caused
Optical property of the power under the conditions of polarization maintaining optical fibre thin footpath is solved, does not make bending resistance statement.In bend-insensitive light
It is still proposed in fibre without such thin fiber.
Generally, dopant can change the relative index of refraction of quartz glass.The dopants such as germanium (Ge), chlorine (Cl), phosphorus (P) can
So that the relative index of refraction of the quartz glass after doping is positive value, we term it " positive dopant ", and fluorine (F), boron (B) etc.
Dopant can so that the relative index of refraction of the quartz glass after doping is negative value, and we term it " negative dopants ".It is if same
When quartz glass is doped using a kind of " positive dopant " and a kind of " negative dopant ", then the phase of the quartz glass after doping
Refractive index can be on the occasion of either negative value or be 0.
Invention content
The content of present invention is introduced for convenience, defines following term：
Refractive index profile：Relationship in optical fiber between glass refraction and its radius.
Relative fefractive index difference：
The contribution amount of fluorine (F)：Fluorine doped (F) quartz glass relative to pure silicon dioxide quartz glass relative index of refraction (Δ
F), with this come represent fluorine doped (F) measure.
The technical problems to be solved by the invention be to provide it is a kind of work in 1550nm wavelength, there is fabulous bending resistance
The single mode optical fiber of energy.The optical fiber has relatively low fibre loss, preferable bending resistance.
The used in order to solve the above problem technical solution of the present invention is：
A kind of miniaturized device single mode optical fiber, sandwich layer are the silica (SiO for mixing germanium (Ge) and fluorine (F)2) quartz
Glass, the diameter Dcore of sandwich layer are 6.5 μm to 7.5 μm, ranging from the 0.70% to 0.75% of the relative index of refraction Δ 1 of sandwich layer；
Covering has 3 layerings, is followed successively by first layer, the second layering from inside to outside, and third layering, wherein first layer are fluorine doped dioxy
SiClx quartz glass, second is layered as germanium-doped silica quartz glass, and third is layered as pure silicon dioxide quartz glass layer.
In one embodiment of the present of invention, the first layer is closely around sandwich layer, the relative index of refraction Δ 31 of the layering
And the difference of the relative index of refraction Δ 1 of sandwich layer be 0.89%≤Δ 1- Δs 31≤0.99%, Δ 31 ranging from -0.18% to -
0.22%, the diameter D31 of the layering is 12 μm to 15 μm.
In one embodiment of the present of invention, the second layering is closely around first layer, the relative index of refraction Δ 32 of the layering
Ranging from 0% to 0.1%, the diameter D32 of the layering is 15 μm to 17 μm；
In one embodiment of the present of invention, the relative index of refraction Δ 33 of the third layering is 0%, the diameter of the layering
D33 is 79 μm to 81 μm.
In one embodiment of the present of invention, there is one layer of polymer coating for closely surrounding covering outside covering, polymer applies
A diameter of 160 μm to 170 μm of layer.
In one embodiment of the present of invention, the cutoff wavelength of the single mode optical fiber is 1300nm to 1460nm.
In one embodiment of the present of invention, the MFD of the single mode optical fiber is 7.0 μm -7.6 μm in 1550nm wavelength.
In one embodiment of the present of invention, the attenuation of the single mode optical fiber is less than 0.26dB/km in 1550nm wavelength.
In one embodiment of the present of invention, the macrobending loss of the single mode optical fiber is less than 0.02dB/ in 1550nm wavelength
(Φ 10mm25 circles).
In one embodiment of the present of invention, the macrobending loss of the single mode optical fiber is less than 0.03dB/ in 1550nm wavelength
(Φ 15mm400 circles).
The beneficial effects of the present invention are：It, can be with by being optimized and revised to fiber core layer material structure 1. sandwich layer mixes Ge
The numerical aperture of optical fiber is improved, improves the restriction ability to light.Fiber core layer mixes F simultaneously, can reduce the viscosity of core material,
It is more matched with the viscosity of clad material, the material structure and stress distribution of optical fiber can be improved, lacked after being conducive to drawing optical fibers
Sunken reduction and the reduction of optical fiber attenuation；2. in the layering of fibre cladding, containing there are one pure silicon dioxide silica glass materials
The material structure of optical fiber entirety can be changed in layering, the layering so that the stress distribution after drawing optical fibers is optimized.The layering will
The tensile stress formed in drawing process is undertaken, the stress that sandwich layer is born is then compression, which is beneficial to reduce
The defects of core material concentration reduces the scattering loss of core material, is conducive to the reduction of optical fiber attenuation；3. fibre cladding
In layering, containing there are one the layering for mixing F silica quartz glass materials, the layerings of depressed-index therein, for improving
The bending resistance of optical fiber plays the role of positive.The design of the layered structure is beneficial to reduce optical fiber in small-bend radius shape
Macrobend added losses under state.4. the second covering is the silica quartz glass for mixing germanium, trap effect is formed with the first covering,
The restriction ability to light can be improved, enhancing optical fiber improves the micro-bend ability of optical fiber to the resistivity of pressure measurement stress.5. optical fiber
With good bending resistance, and cladding diameter and coating diameter with miniaturization；Cladding diameter and coating diameter are all
It is corresponding to reduce, the size of device is reduced, can wind more optical fiber in same device size in other words, is improved
The sensitivity of device.Relative to common 125 μm of optical fiber, optical fiber of the present invention can improve hydrophone detection under similary device size
2.3 times of distance.
Description of the drawings
Fig. 1 is the radial cross section of one embodiment of the invention.The sandwich layer of 00 correspondence optical fiber in figure, 31 correspond to optical fiber
The first layer of covering, 32 correspond to the second layering of fibre cladding, and 33 correspond to the second layering of fibre cladding；
Fig. 2 is each layer diameter and its schematic diagram of corresponding relative index of refraction in one embodiment of the invention.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, it is right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.As long as in addition, technical characteristic involved in the various embodiments of the present invention described below
It does not constitute a conflict with each other and can be combined with each other.
As shown in Figure 1, the miniaturized device single mode optical fiber in the embodiment of the present invention, includes sandwich layer and covering, sandwich layer
00 quartz glass by mixing germanium (Ge) and fluorine (F) forms；Be centered around sandwich layer is covering.There are three layering, first layers for covering
31 closely surround sandwich layer, are made of the quartz glass of fluorine doped (F), and diameter D31 is 12 μm~15 μm；Second layering 32 closely surrounds
First layer 31, diameter D32 are 15 μm~17 μm；Third is layered as pure silicon dioxide quartz glass layer, i.e. its relative index of refraction
Δ 33 is 0%, and diameter D33 is 79 μm~81 μm.Closely surround covering is polymer coating, which is fiber glass part
Protection is provided, the overall diameter of coating is 160 μm~170 μm.In the embodiment of the present invention, sandwich layer, the first layer of covering, first point
The relative index of refraction of the diameter and each layering of layer and third layering is as shown in Figure 2.
According to the technical solution of above-mentioned single mode optical fiber, the parameter of optical fiber is designed in the range of its defined, and
By the plugs manufacturing process such as PCVD techniques, MCVD techniques, OVD techniques or VAD techniques known to us come setting according to optical fiber
Meter requirement manufacture plug, passes through casing technique, POD techniques (plasm outward spraying technique, plasma outside
Deposition), the over cladding process such as OVD techniques or VAD techniques complete the manufacture of entire prefabricated rods.PCVD techniques and POD works
Skill has certain advantage in fluorine doped (F) for carrying out high concentration.
The refractive index profile of drawn optical fiber is tested using PK2400 equipment.The major parameter of the refractive index profile of optical fiber
As shown in table 1.
Table 1：The structural parameters of optical fiber
The Specifeca tion speeification of institute's drawing optical fiber is as shown in table 2.
Table 2：The main performance of optical fiber
From embodiment it can be seen that：1. sandwich layer, which mixes Ge concentration, can have an impact the bending resistance of optical fiber and attenuation, fit
The concentration of Ge is mixed when improving sandwich layer, the bending resistance of optical fiber can be improved.However, the Ge doping of excessive concentrations, can cause core
The increase of layer material scattering loss, meanwhile, it also has a certain impact to manufacture cost and technology difficulty；2. mix F dioxies in covering
SiClx quartz glass is layered, the material structure and stress distribution that width will change optical fiber, meanwhile, it can be to the waveguide performance of optical fiber
It has an impact.Depressed-index mix F layering play the role of to the raising of the bending resistance of optical fiber it is positive.Its width or depth
The bending property that the increase of degree all will further improve optical fiber, however, the increase of width and depth also implies that cost and work
The increase of skill difficulty.Under the precondition for meeting certain bending requirement, need to find the structure ginseng of suitable width and depth
Number.3. the germanium-doped silica quartz glass layering of the second covering, is layered with the fluorine doped silica quartz glass of the first covering
A trap area is collectively formed, blocks leaking for optical energy, improves anti-micro-bend ability.
Test result shows the optical fiber manufactured by technical solution according to the invention, and cutoff wavelength is in 1300nm-
1460nm, in 1550nm operation wavelengths, MFD is 7.0 μm -7.6 μm, and optical fiber attenuation is less than 0.26dB/km, and macrobending loss is less than
0.03dB/ (Φ 10mm25 circles), macrobending loss are less than 0.03dB/ (Φ 15mm400 circles).
Single mode optical fiber of the present invention has preferable bending resistance, can be used in hydrophone.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, not to
The limitation present invention, all any modification, equivalent and improvement made all within the spirits and principles of the present invention etc., should all include
Within protection scope of the present invention.
Claims (8)
1. a kind of miniaturized device single mode optical fiber, includes sandwich layer and covering, which is characterized in that sandwich layer is mixes germanium (Ge) and fluorine
(F) silica (SiO2) quartz glass, the diameter Dcore of sandwich layer is 6.5 μm to 7.5 μm, the relative index of refraction of sandwich layer
Ranging from the 0.70% to 0.75% of Δ 1；Covering has 3 layerings, is followed successively by first layer, the second layering, third from inside to outside
Layering, wherein first layer are fluorine doped silica quartz glass, and second is layered as germanium-doped silica quartz glass, third point
Layer is pure silicon dioxide quartz glass layer, and the first layer is closely around sandwich layer, the relative index of refraction Δ 31 and core of the layering
The difference of the relative index of refraction Δ 1 of layer is 0.89%≤Δ 1- Δ 31≤0.99%, and ranging from-the 0.18% to -0.22% of Δ 31,
The diameter D31 of the layering is 12 μm to 15 μm, and the MFD of the single mode optical fiber is 7.0 μm -7.6 μm in 1550nm wavelength.
2. single mode optical fiber as described in claim 1, which is characterized in that the second layering closely surround first layer, the layering
Ranging from the 0% to 0.1% of relative index of refraction Δ 32, the diameter D32 of the layering is 15 μm to 17 μm.
3. single mode optical fiber as described in claim 1, which is characterized in that the relative index of refraction Δ 33 of the third layering is 0%,
The diameter D33 of the layering is 79 μm to 81 μm.
4. single mode optical fiber as described in claim 1, which is characterized in that have one layer of polymer for closely surrounding covering outside covering
Coating, a diameter of 160 μm to 170 μm of polymer coating.
5. single mode optical fiber as described in claim 1, which is characterized in that the cutoff wavelength of the single mode optical fiber for 1300nm extremely
1460nm。
6. single mode optical fiber as described in claim 1, which is characterized in that the attenuation of the single mode optical fiber is small in 1550nm wavelength
In 0.26dB/km.
7. single mode optical fiber as described in claim 1, which is characterized in that the macrobending loss of the single mode optical fiber is in 1550nm wavelength
When be less than 0.02dB, macrobend for Φ 10mm25 circle.
8. single mode optical fiber as described in claim 1, which is characterized in that the macrobending loss of the single mode optical fiber is in 1550nm wavelength
When be less than 0.03dB, macrobend for Φ 15mm400 circle.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106154410A (en) * | 2016-08-30 | 2016-11-23 | 烽火通信科技股份有限公司 | A kind of single-mode fiber and manufacture method thereof |
| CN111323871A (en) * | 2018-12-13 | 2020-06-23 | 中天科技精密材料有限公司 | Optical fiber and method for producing the same |
| CN110174724A (en) * | 2019-04-08 | 2019-08-27 | 安徽长荣光纤光缆科技有限公司 | A kind of low-loss single-mode optical fiber and preparation method thereof |
| CN110873925B (en) * | 2019-10-14 | 2021-09-07 | 江苏法尔胜光通信科技有限公司 | 980 optical fiber for thin-diameter coupler |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1438775A (en) * | 2002-02-13 | 2003-08-27 | 古河电气工业株式会社 | Optical fiber, optical transmission path using same and optical communication system |
| CN1501107A (en) * | 2001-12-06 | 2004-06-02 | ض� | Optical fiber having negative dispersion, negative dispersion slope and large effective area |
| CN1300608C (en) * | 2001-03-30 | 2007-02-14 | 古河电气工业株式会社 | Optical fiber, light transmission line using said optical fiber and light transmission system |
| CN100424530C (en) * | 2004-08-11 | 2008-10-08 | 古河电气工业株式会社 | Optical fiber, optical fiber ribbon, and optical interconnection system |
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| US7209626B2 (en) * | 2003-01-27 | 2007-04-24 | Peter Dragic | Waveguide configuration |
| KR100584951B1 (en) * | 2003-07-23 | 2006-05-29 | 엘에스전선 주식회사 | Optical fiber and optical transmission line using the same, and optical transmission system |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1300608C (en) * | 2001-03-30 | 2007-02-14 | 古河电气工业株式会社 | Optical fiber, light transmission line using said optical fiber and light transmission system |
| CN1501107A (en) * | 2001-12-06 | 2004-06-02 | ض� | Optical fiber having negative dispersion, negative dispersion slope and large effective area |
| CN1438775A (en) * | 2002-02-13 | 2003-08-27 | 古河电气工业株式会社 | Optical fiber, optical transmission path using same and optical communication system |
| CN100424530C (en) * | 2004-08-11 | 2008-10-08 | 古河电气工业株式会社 | Optical fiber, optical fiber ribbon, and optical interconnection system |
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