CN107601838A - A kind of manufacture method of multi-core fiber prefabricated rods - Google Patents
A kind of manufacture method of multi-core fiber prefabricated rods Download PDFInfo
- Publication number
- CN107601838A CN107601838A CN201711012166.5A CN201711012166A CN107601838A CN 107601838 A CN107601838 A CN 107601838A CN 201711012166 A CN201711012166 A CN 201711012166A CN 107601838 A CN107601838 A CN 107601838A
- Authority
- CN
- China
- Prior art keywords
- core
- manufacture method
- fibre
- prefabricated rods
- covering
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
The invention provides a kind of manufacture method of multi-core fiber prefabricated rods, several independent fibre cores are included in the optical fiber prepared by it, greatly improve optical fiber transmission capacity.Meanwhile it is better than standard in bending resistance and in-core individual transmission.Fibre core, prefabricated rod cladding are made respectively, and the fibre core includes fuse, core covering, and wherein fuse is prepared by chemical vapor deposition VAD techniques and mixes germanium；The core covering is that VAD techniques are prepared and punched after fluorine doped sintering sleeve column；Fuse and core covering are melted into contracting afterwards and form fibre core, then fibre core is inserted in the corresponding gun drilling of the prefabricated rod cladding.
Description
Technical field
The present invention relates to the technical field that preform makes, specially a kind of manufacturer of multi-core fiber prefabricated rods
Method.
Background technology
Wanted as the development of international telecommunication service, especially Internet technology are higher and higher to transmission speed and capacity
Ask, communication system shows very fast growth trend to the demand of fiber bandwidth.In long range, Large Copacity, high rate data transmission
In communication system, it usually needs multifiber is used to realize the transmission of Large Copacity, in addition, multiple optical fiber often add coat
To prevent mutual crosstalk, cost is higher in long range process of deployment, while has higher requirement to the independence of optical fiber.So
The growth of transmission capacity and distance needs higher launched power and lower bending loss of optical fiber to meet distinguishable noise
Compare demand.And as the increasingly growth of Optical Fiber Transmission distance, the arrival in special 5G epoch, high-capacity optical fiber transmission have this very heavy
Big meaning.
Publication number US 2014/0178024《Multi-core fiber》, there is provided a kind of preparation method of multi-core fiber, wherein including
10 fiber core layers.Due to the core structure of outer ring nine not quietly, it is very sensitive to fibre-optical bending during transmission, it is unsuitable for extensive
Use over long distances.
Publication number CN106461859A《The manufacture method of multi-core fiber and multi-core fiber》, there is provided the one of multi-core fiber
Kind of preparation method, but preparation technology is cumbersome, and fiber core layer fuse is naked core, it is mutual anti-tampering unstable between sandwich layer.
The content of the invention
In view of the above-mentioned problems, the invention provides a kind of manufacture method of multi-core fiber prefabricated rods, the optical fiber prepared by it
In include several independent fibre cores, greatly improve optical fiber transmission capacity.Meanwhile in bending resistance and in-core individual transmission all
Better than standard.
A kind of manufacture method of multi-core fiber prefabricated rods, it is characterised in that：Fibre core, prefabricated rod cladding are made respectively, it is described
Fibre core includes fuse, core covering, and wherein fuse is prepared by chemical vapor deposition VAD techniques and mixes germanium；The core covering is VAD works
Skill is prepared and punched after fluorine doped sintering sleeve column；Fuse and core covering are melted into contracting afterwards and form fibre core, then fibre core is inserted described pre-
In the corresponding gun drilling of rod cladding processed.
It is further characterized by：
VAD extends after depositing germnium doped core with the assembling of fluorine doped covering in the preparation of the fibre core, and fibre core is made, is obtained
Core diameter is 12mm~14mm；
Germnium doped core and the refringence of the core covering of fluorine doped are 0.0070~0.0080；
The prefabricated rod cladding preparation technology is as follows：A prepares major diameter sleeve column using VAD, and diameter is in 100mm~160mm；
Sleeve column gun drilling, 14~16mm of aperture, 42~52mm of pitch of holes, inside surface roughness are less than 0.35mm by b；High temperature when c is preheated
1000~1600 DEG C of furnace temperature, high pure oxygen is passed through during extension and is etched 90 minutes with chlorine；D preheatings terminate to protect in rear pipeline
Negative pressure is held, while high temperature furnace temperature rises to 1800-2100 DEG C, extension；
7 gun drillings are provided with the prefabricated rod cladding, seven fibre cores are positioned in corresponding gun drilling, one by one
Corresponding arrangement；
The ≈ 0% of refractive index contrast Δ 1 of each fibre core after wire drawing, the radius of fibre core is 5~7 μm；
38~48 μm of distance interval between adjacent described fibre core after wire drawing；
Described cladding radius after wire drawing is 65 μm, and refractive index contrast Δ 2 is the ＜ -0.1% of -0.4% ＜ Δs 2；
Described sagging covering after wire drawing is made for fluorine doped substrate tube, and radius is 12~40 μm, refractive index contrast Δ 3
For the ＜ -0.3% of -0.6% ＜ Δs 3；
The optical fiber 1625nm macrobending losses 30 circle after wire drawing is no more than 0.1dB.
After method using the present invention, fuse, core covering, prefabricated rod cladding are made using VAD techniques, obtain loose media
Sintering extension afterwards, prepared for VAD techniques due to core covering and punched after fluorine doped sintering sleeve column；Fuse and core covering are melted afterwards
Contracting forms fibre core, then fibre core is inserted in the corresponding gun drilling of the prefabricated rod cladding, and the optical parametric such as macrobend of its optical fiber damages
Consumption, optical fiber attenuation can meet to transmit normal need, and this process route is ripe, stably, is very easy to carry out mass production；
This index of transmission capacity reaches during the present invention can transmit optical fiber optimizes as far as possible.This is for a large amount of transmission capacities from now on
Information communication transmission be extremely important, be not only able to save optical fiber telecommunications system laying cost, also reduce
The harmful effect to caused by communication system performance in laying work, there is important application value.
Brief description of the drawings
Fig. 1 is preform profile produced by the present invention
Fig. 2 is sleeve column gun drilling schematic diagram of the present invention.
Fig. 3 is optical wand extension apparatus schematic diagram of the present invention.
Fig. 4 is Refractive Index Profile of Optical of the present invention；
Title in figure corresponding to sequence number is as follows：
Fibre core 1, fuse 11, core covering 12, prefabricated rod cladding 2.
Embodiment
A kind of manufacture method of multi-core fiber prefabricated rods, is shown in Fig. 1-Fig. 3：Fibre core 1, prefabricated rod cladding 2, fibre core are made respectively
1 includes fuse 11, core covering 12, and wherein fuse 11 is prepared by chemical vapor deposition VAD techniques and mixes germanium；Core covering 12 is VAD
Technique is prepared and punched after fluorine doped sintering sleeve column；Fuse 11 and core covering 12 are melted into contracting afterwards and form fibre core 1, then fibre core 1 is inserted
In the corresponding gun drilling for entering prefabricated rod cladding 2.
In specific embodiment：
VAD extends after depositing germnium doped core with the assembling of fluorine doped covering in the preparation of fibre core, and fibre core, the fibre core obtained is made
A diameter of 12mm~14mm；
The refringence of germnium doped core and the core covering of fluorine doped is 0.0070~0.0080；
Prefabricated rod cladding preparation technology is as follows：A prepares major diameter sleeve column using VAD, and diameter is in 100mm~160mm；B will
Sleeve column gun drilling, 14~16mm of aperture, 42~52mm of pitch of holes, inside surface roughness are less than 0.35 μm；High temperature furnace temperature when c is preheated
1000~1600 DEG C of degree, high pure oxygen is passed through during extension and is etched 90 minutes with chlorine；D preheatings terminate to keep negative in rear pipeline
Pressure, while high temperature furnace temperature rises to 1800-2100 DEG C, extension；
7 gun drillings are provided with prefabricated rod cladding, seven fibre cores are positioned in corresponding gun drilling, correspond cloth
Put；
The ≈ 0% of refractive index contrast Δ 1 of each fibre core after wire drawing, the radius r1 of fibre core is 5~7 μm；
38~48 μm of distance interval between adjacent fibre core after wire drawing；
Cladding radius after wire drawing is 65 μm, and refractive index contrast Δ 2 is the ＜ -0.1% of -0.4% ＜ Δs 2；
Sagging covering after wire drawing is made for fluorine doped substrate tube, and radius is 12~40 μm, refractive index contrast Δ 3 for-
The ＜ -0.3% of 0.6% ＜ Δs 3；
The circle of optical fiber 1625nm macrobending losses 30 is no more than 0.1dB after wire drawing.
From above example, illustrate the optical parametric such as macrobending loss of optical fiber of the present invention, optical fiber attenuation can meet to transmit
Normal need, and this process route is ripe, stably, is very easy to carry out mass production.
The specific embodiment of the present invention is described in detail above, but content is only the preferable implementation of the invention
Example, it is impossible to be considered as the practical range for limiting the invention.All impartial changes made according to the invention application range
Change and improvement etc., all should still be belonged within this patent covering scope.
Claims (10)
- A kind of 1. manufacture method of multi-core fiber prefabricated rods, it is characterised in that：Fibre core, prefabricated rod cladding, the fibre are made respectively Core includes fuse, core covering, and wherein fuse is prepared by chemical vapor deposition VAD techniques and mixes germanium；The core covering is VAD techniques Prepare and punched after fluorine doped sintering sleeve column；Fuse and core covering are melted into contracting afterwards and form fibre core, then fibre core is inserted described prefabricated In the corresponding gun drilling of rod cladding.
- A kind of 2. manufacture method of multi-core fiber prefabricated rods as claimed in claim 1, it is characterised in that：The preparation of the fibre core Assemble and extend with fluorine doped covering after middle VAD depositions germnium doped core, fibre core is made, the core diameter obtained is 12mm~14mm.
- A kind of 3. manufacture method of multi-core fiber prefabricated rods as claimed in claim 2, it is characterised in that：Germnium doped core with The refringence of the core covering of fluorine doped is 0.0070~0.0080.
- A kind of 4. manufacture method of multi-core fiber prefabricated rods as claimed in claim 3, it is characterised in that：The prefabricated rod cladding Preparation technology is as follows：A prepares major diameter sleeve column using VAD, and diameter is in 100mm~160mm；B by sleeve column gun drilling, aperture 14~ 16mm, 42~52mm of pitch of holes, inside surface roughness are less than 0.35 μm；1000~1600 DEG C of high temperature furnace temperature, is prolonging when c is preheated High pure oxygen is passed through during stretching to etch 90 minutes with chlorine；D preheatings terminate to keep negative pressure in rear pipeline, while high temperature furnace temperature liter To 1800-2100 DEG C, extension.
- A kind of 5. manufacture method of multi-core fiber prefabricated rods as claimed in claim 4, it is characterised in that：The prefabricated rod cladding In be provided with 7 gun drillings, seven fibre cores be positioned over corresponding in gun drilling, correspond arrangement.
- A kind of 6. manufacture method of multi-core fiber prefabricated rods as claimed in claim 4, it is characterised in that：Each fibre core after wire drawing The ≈ 0% of refractive index contrast Δ 1, the radius of fibre core is 5~7 μm.
- A kind of 7. manufacture method of multi-core fiber prefabricated rods as claimed in claim 4, it is characterised in that：It is adjacent after wire drawing 38~48 μm of distance interval between described fibre core.
- A kind of 8. manufacture method of multi-core fiber prefabricated rods as claimed in claim 4, it is characterised in that：It is described after wire drawing Cladding radius is 65 μm, and refractive index contrast Δ 2 is the ＜ -0.1% of -0.4% ＜ Δs 2.
- A kind of 9. manufacture method of multi-core fiber prefabricated rods as claimed in claim 4, it is characterised in that：It is described after wire drawing The covering that sink is that fluorine doped substrate tube is made, and radius is 12~40 μm, and refractive index contrast Δ 3 is the ＜ -0.3% of -0.6% ＜ Δs 3.
- A kind of 10. manufacture method of multi-core fiber prefabricated rods as claimed in claim 4, it is characterised in that：It is described after wire drawing The circle of optical fiber 1625nm macrobending losses 30 is no more than 0.1dB.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711012166.5A CN107601838A (en) | 2017-10-26 | 2017-10-26 | A kind of manufacture method of multi-core fiber prefabricated rods |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711012166.5A CN107601838A (en) | 2017-10-26 | 2017-10-26 | A kind of manufacture method of multi-core fiber prefabricated rods |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107601838A true CN107601838A (en) | 2018-01-19 |
Family
ID=61079281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711012166.5A Pending CN107601838A (en) | 2017-10-26 | 2017-10-26 | A kind of manufacture method of multi-core fiber prefabricated rods |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107601838A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108181683A (en) * | 2018-03-19 | 2018-06-19 | 江苏斯德雷特通光光纤有限公司 | A kind of low crosstalk big mode field area multi-core optical fiber and preparation method thereof |
| CN110304823A (en) * | 2018-03-27 | 2019-10-08 | 住友电气工业株式会社 | The manufacturing method of multi-core optical fiber |
| CN111517637A (en) * | 2020-05-22 | 2020-08-11 | 长飞光纤光缆股份有限公司 | Rare earth doped multi-core optical fiber, optical fiber preform, preparation method and application thereof |
| CN113446962A (en) * | 2021-07-13 | 2021-09-28 | 西南交通大学 | Temperature-insensitive curvature sensor based on strong-coupling multi-core fiber, curvature measuring device and method |
| CN113461324A (en) * | 2020-03-30 | 2021-10-01 | 住友电气工业株式会社 | Method for manufacturing preform of multicore optical fiber and method for manufacturing multicore optical fiber |
| CN113698090A (en) * | 2021-09-01 | 2021-11-26 | 北京热刺激光技术有限责任公司 | Optical fiber preform, homogenized optical fiber, and preparation method and application thereof |
| CN113929808A (en) * | 2021-03-26 | 2022-01-14 | 杭州安誉科技有限公司 | Composite optical fiber based on fluorescence detection system and preparation method thereof |
| CN114355505A (en) * | 2021-12-31 | 2022-04-15 | 长飞光纤光缆股份有限公司 | Laser shaping optical fiber, and preparation method and application thereof |
| CN114624812A (en) * | 2022-03-16 | 2022-06-14 | 江苏亨通光纤科技有限公司 | Multi-core energy transmission optical fiber and preparation method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101391861A (en) * | 2008-10-28 | 2009-03-25 | 长飞光纤光缆有限公司 | Large size combined optical fibre perform of polarization maintaining fiber and production method thereof |
| CN101891380A (en) * | 2010-07-13 | 2010-11-24 | 长飞光纤光缆有限公司 | Large-size optical fiber preform and manufacturing method of optical fiber thereof |
| CN102354019A (en) * | 2011-11-11 | 2012-02-15 | 烽火通信科技股份有限公司 | Bent non-sensitive micro-structured optical fiber and production method thereof |
| JP2013033865A (en) * | 2011-08-02 | 2013-02-14 | Mitsubishi Cable Ind Ltd | Optical fiber and manufacturing method of optical fiber |
| JP2013033863A (en) * | 2011-08-02 | 2013-02-14 | Mitsubishi Cable Ind Ltd | Optical fiber, manufacturing method of optical fiber, and optical amplifier |
| CN104291676A (en) * | 2014-08-25 | 2015-01-21 | 长飞光纤光缆股份有限公司 | Method for producing large-size bending insensitive multi-mode optical fiber preforms |
| CN105425335A (en) * | 2015-12-17 | 2016-03-23 | 长飞光纤光缆股份有限公司 | Anti-bending multi-core optical fiber for communication |
| JP2017075061A (en) * | 2015-10-13 | 2017-04-20 | 古河電気工業株式会社 | Method of manufacturing multicore fiber |
-
2017
- 2017-10-26 CN CN201711012166.5A patent/CN107601838A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101391861A (en) * | 2008-10-28 | 2009-03-25 | 长飞光纤光缆有限公司 | Large size combined optical fibre perform of polarization maintaining fiber and production method thereof |
| CN101891380A (en) * | 2010-07-13 | 2010-11-24 | 长飞光纤光缆有限公司 | Large-size optical fiber preform and manufacturing method of optical fiber thereof |
| JP2013033865A (en) * | 2011-08-02 | 2013-02-14 | Mitsubishi Cable Ind Ltd | Optical fiber and manufacturing method of optical fiber |
| JP2013033863A (en) * | 2011-08-02 | 2013-02-14 | Mitsubishi Cable Ind Ltd | Optical fiber, manufacturing method of optical fiber, and optical amplifier |
| CN102354019A (en) * | 2011-11-11 | 2012-02-15 | 烽火通信科技股份有限公司 | Bent non-sensitive micro-structured optical fiber and production method thereof |
| CN104291676A (en) * | 2014-08-25 | 2015-01-21 | 长飞光纤光缆股份有限公司 | Method for producing large-size bending insensitive multi-mode optical fiber preforms |
| JP2017075061A (en) * | 2015-10-13 | 2017-04-20 | 古河電気工業株式会社 | Method of manufacturing multicore fiber |
| CN105425335A (en) * | 2015-12-17 | 2016-03-23 | 长飞光纤光缆股份有限公司 | Anti-bending multi-core optical fiber for communication |
Non-Patent Citations (2)
| Title |
|---|
| 廖跃华等: "《传感器与检测技术》", 31 August 2009, 天津大学出版社 * |
| 张森: "《光纤光缆制备》", 31 August 2011, 西安电子科技大学出版社 * |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108181683A (en) * | 2018-03-19 | 2018-06-19 | 江苏斯德雷特通光光纤有限公司 | A kind of low crosstalk big mode field area multi-core optical fiber and preparation method thereof |
| CN108181683B (en) * | 2018-03-19 | 2023-08-29 | 江苏斯德雷特光纤科技有限公司 | Low-crosstalk large-mode-area multi-core optical fiber and preparation method thereof |
| CN110304823B (en) * | 2018-03-27 | 2022-09-23 | 住友电气工业株式会社 | Method for manufacturing multi-core optical fiber |
| CN110304823A (en) * | 2018-03-27 | 2019-10-08 | 住友电气工业株式会社 | The manufacturing method of multi-core optical fiber |
| CN113461324A (en) * | 2020-03-30 | 2021-10-01 | 住友电气工业株式会社 | Method for manufacturing preform of multicore optical fiber and method for manufacturing multicore optical fiber |
| CN111517637A (en) * | 2020-05-22 | 2020-08-11 | 长飞光纤光缆股份有限公司 | Rare earth doped multi-core optical fiber, optical fiber preform, preparation method and application thereof |
| CN111517637B (en) * | 2020-05-22 | 2021-04-27 | 长飞光纤光缆股份有限公司 | Rare earth doped multi-core optical fiber, optical fiber preform, preparation method and application thereof |
| CN113929808A (en) * | 2021-03-26 | 2022-01-14 | 杭州安誉科技有限公司 | Composite optical fiber based on fluorescence detection system and preparation method thereof |
| CN113446962A (en) * | 2021-07-13 | 2021-09-28 | 西南交通大学 | Temperature-insensitive curvature sensor based on strong-coupling multi-core fiber, curvature measuring device and method |
| CN113446962B (en) * | 2021-07-13 | 2022-12-06 | 西南交通大学 | Temperature-insensitive curvature sensor based on strong-coupling multi-core fiber, curvature measuring device and method |
| CN113698090A (en) * | 2021-09-01 | 2021-11-26 | 北京热刺激光技术有限责任公司 | Optical fiber preform, homogenized optical fiber, and preparation method and application thereof |
| CN114355505A (en) * | 2021-12-31 | 2022-04-15 | 长飞光纤光缆股份有限公司 | Laser shaping optical fiber, and preparation method and application thereof |
| CN114624812A (en) * | 2022-03-16 | 2022-06-14 | 江苏亨通光纤科技有限公司 | Multi-core energy transmission optical fiber and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107601838A (en) | A kind of manufacture method of multi-core fiber prefabricated rods | |
| EP2700988B1 (en) | Bending-resistant large core diameter high numerical aperture multimode fiber | |
| CN101738681B (en) | High bandwidth multimode fiber | |
| US9052433B2 (en) | Multicore optical fiber (variants) | |
| EP3141937B1 (en) | Small-diameter polarization maintaining optical fibre | |
| CN109581583B (en) | Multi-cladding optical fiber and multi-core optical fiber coupler | |
| CN101625438B (en) | Bend insensitive single mode optic fiber with large effective area and manufacturing method thereof | |
| CN104291676B (en) | A kind of manufacture method of large scale bend-insensitive multimode optical fiber preform | |
| JPWO2010119930A1 (en) | Multi-core optical fiber | |
| CN108181683B (en) | Low-crosstalk large-mode-area multi-core optical fiber and preparation method thereof | |
| CN105759344B (en) | A kind of anti-bending multimode fiber | |
| CN111290075B (en) | Single-mode optical fiber and multi-core optical fiber coupler | |
| CN108680990A (en) | A kind of low crosstalk orbital angular momentum Transmission Fibers and its manufacturing method | |
| CN102225843B (en) | Method for producing fiber prefabricated rod | |
| CN106324749B (en) | Few-mode optical fiber for amplifier | |
| CN104216045A (en) | Optical fiber and manufacturing method thereof | |
| CN103630965B (en) | Bending-resistant tapered fiber and method for manufacturing same | |
| CN113406742A (en) | Multi-core optical fiber for different application scenes and preparation method | |
| CN111807699A (en) | Manufacturing method of bending-resistant optical fiber and optical fiber corresponding to manufacturing method | |
| CN103399376B (en) | A kind of bend-insensitive single-mode optical fiber and manufacture method thereof | |
| CN104777552B (en) | A kind of double-cladding active optical fiber and its manufacture method | |
| US20100158459A1 (en) | Long Lifetime Optical Fiber and Method | |
| CN104261670A (en) | Method for manufacturing optical fiber | |
| CN104049299A (en) | Bending-insensitive single mode fiber and manufacturing method thereof | |
| CN101533124B (en) | Preparation method of parallel array multi-core fiber |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180119 |
|
| RJ01 | Rejection of invention patent application after publication |