CN101446664A - Hollow quartz plastic special optical fiber - Google Patents
Hollow quartz plastic special optical fiber Download PDFInfo
- Publication number
- CN101446664A CN101446664A CNA2008102271727A CN200810227172A CN101446664A CN 101446664 A CN101446664 A CN 101446664A CN A2008102271727 A CNA2008102271727 A CN A2008102271727A CN 200810227172 A CN200810227172 A CN 200810227172A CN 101446664 A CN101446664 A CN 101446664A
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- Prior art keywords
- optical fiber
- refractive index
- layer
- hollow quartz
- special optical
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- 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.)
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 58
- 239000013307 optical fiber Substances 0.000 title claims abstract description 42
- 239000010453 quartz Substances 0.000 title claims abstract description 29
- 239000004033 plastic Substances 0.000 title claims abstract description 23
- 229920003023 plastic Polymers 0.000 title claims abstract description 23
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 48
- 239000010410 layer Substances 0.000 claims abstract description 24
- 238000005253 cladding Methods 0.000 claims abstract description 16
- 239000012792 core layer Substances 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 14
- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 239000011347 resin Substances 0.000 claims abstract description 4
- 229920005989 resin Polymers 0.000 claims abstract description 4
- 239000000126 substance Substances 0.000 claims description 18
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 3
- 229910052731 fluorine Inorganic materials 0.000 claims description 3
- 239000011737 fluorine Substances 0.000 claims description 3
- 229920000260 silastic Polymers 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 3
- 229920000642 polymer Polymers 0.000 abstract description 3
- 238000002360 preparation method Methods 0.000 abstract description 2
- 229920002379 silicone rubber Polymers 0.000 abstract 1
- 239000000835 fiber Substances 0.000 description 19
- 239000000377 silicon dioxide Substances 0.000 description 5
- 239000013308 plastic optical fiber Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 102000029749 Microtubule Human genes 0.000 description 1
- 108091022875 Microtubule Proteins 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000004688 microtubule Anatomy 0.000 description 1
- 239000000382 optic material Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000004038 photonic crystal Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
Images
Abstract
The invention relates to a hollow quartz plastic special optical fiber, which comprises a middle air layer, a pure silica core layera, a polymer inner cladding b, a polymer outer cladding c and an outer protection layer d. The optical transmission part is the pure silica core layer a. The refractive index n1 of the pure silica layer is 1.44-1.45; the inner cladding adopts silicon rubber materials, and the refractive index n2 is 1.36-1.37; the outer cladding adopts fluoro-resin, and the refractive index n3 is 1.33-1.34. Therefore, the numerical aperture can be calculated to be about 0.512, while the general optical fiber numerical aperture is not more than 0.4. The hollow quartz plastic special optical fiber can greatly reduce the transmission loss; furthermore, the sources of the materials for fabricating the optical fiber are wide, and the preparation process is simple; the hollow quartz plastic special optical fiber can solve the using problem of the optical fiber of the last kilometer of an access network, reduce the system cost of the access network and facilitate the maintenance.
Description
Technical field
The present invention relates to a kind of special optical fiber, be specifically related to a kind of hollow quartz plastic special optical fiber.
Background technology
At last kilometer of Optical Access Network, owing to the requirement to loss has not been too high, the choice of the selection of optical cable and terminal device is bigger relatively.At the user of access network end, the solution that adopts five class cables, six class cables to connect up to now mostly as terminal.
Along with operator carries out carrying out of FTTH Access Network business and implementation that the copper matting advances policy energetically, common five class cables, six class cables have been difficult to satisfy to the carrying of transmission information such as mass data, image, voice.So it is very suitable recommending a kind of a kind of special optical fiber between common silica fibre and plastic optical fiber to be used for information transmission such as Access Network data, image, voice.
All plastic optical fiber in the past, structurally simpler, because the limitation of material light transmission, relative attenuation is bigger, and as adopting the perfluorinated material drawing optical fiber, though decay can be accomplished 30dB/km, but the relative material cost is higher.Also have overall plastic microstructured optical fibers and porous road photonic crystal fiber etc., these optical fiber cause drawing process to realize that difficulty is bigger at the core segment complex structure, though transmission performance wants excellent than all plastic optical fiber, higher manufacturing cost makes not popularized so far and uses.
Summary of the invention
The object of the present invention is to provide the low loss fiber structure of a kind of employing pure quartz (hollow) fibre core, multiple layer polymer covering, the relative common plastics optical fiber of fibre loss is descended greatly, and convenient the connection and maintenance, thereby obtain practical application at last kilometer of Optical Access Network.
The present invention proposes following technical scheme:
A kind of hollow quartz plastic special optical fiber, this optical fiber comprise intermediate air layer, pure silica core layer a, be coated on polymkeric substance inner cladding b on the pure silica core layer a, be coated on the polymkeric substance surrounding layer c on the polymkeric substance inner cladding b and be coated on outer jacket d on the polymkeric substance surrounding layer c; The b refractive index of polymkeric substance inner cladding is greater than the refractive index of polymkeric substance surrounding layer c, and all less than the refractive index of pure silica core layer a; Light transmission partly is pure silica core layer a;
Preferably, the refractive index n 1 of pure silica core layer a is 1.44～1.45.
Preferably, the polymkeric substance inner cladding adopts silastic material, and refractive index n 2 is 1.36～1.37.
Preferably, the polymkeric substance surrounding layer adopts the fluorine resin, and refractive index n 3 is 1.33～1.34.
Preferably, outer jacket adopts Cable jacket materials.
Preferably, the structural parameters scope of optical fiber is: pure silica core (thickness 100～180 μ m), inner cladding (thickness 50～100 μ m), surrounding layer (thickness 50～100 μ m), outer jacket (thickness 500～1000 μ m).
By the present invention, can reduce loss greatly, and the material source of manufacturing optical fiber is extensive, preparation technology is simple; And the optical cable that the invention solves last kilometer of Access Network uses problem, has reduced the access net system cost, and easy to maintenance.
Description of drawings
What Fig. 1 represented is the exemplary block diagram of hollow quartz plastic special optical fiber.
What Fig. 2 represented is the typical index distribution plan of hollow quartz plastic special optical fiber of the present invention.
Embodiment
The fibre core of hollow quartz plastic special optical fiber of the present invention adopts pure silica core, and it has compared following difference with the fibre core of conventional silica fibre:
1, conventional silica fibre fibre core is that a kind of quartz through purification mixes elements such as a spot of germanium, to obtain suitable refractive index and index distribution, and the pure silica core that the present invention uses just adopts pure quartz material, need not for a change the control of mixing of fiber optic materials refractive index;
2, hollow quartz plastic special optical fiber fibre core is because the centre is a hollow, and the refractive index of air is 1, and is bigger with pure silica core refractive index difference, thereby makes the digital aperture of hollow quartz plastic special optical fiber bigger;
3, to compare the leaded light area bigger for hollow quartz plastic special optical fiber and conventional silica fibre, and optical fiber is easy to connect.
Come hollow quartz plastic special optical fiber of the present invention is specified below in conjunction with accompanying drawing.
With reference to Fig. 1, the hollow quartz plastic special optical fiber comprises intermediate air layer, pure silica core layer a, polymkeric substance inner cladding b, polymkeric substance surrounding layer c and outer jacket d.Light transmission partly is pure silica core layer a.Pure quartz layer refractive index n 1 is 1.44～1.45; Inner cladding adopts silastic material, and refractive index n 2 is 1.36～1.37; Surrounding layer adopts the fluorine resin, and refractive index n 3 is 1.33～1.34.Can calculate numerical aperture thus and be about 0.512, and the general optical fiber numerical aperture is no more than 0.4, visible leaded light performance of the present invention is better than similar other products.And, can produce the optical fiber that external diameter is 0.5mm～1mm according to the structure of Fig. 1.
For intensity and the pliability that guarantees optical fiber, the diameter of control fiber core b is near the external diameter (comprising fibre core and covering) of common quartzy single-mode fiber quartz layer, and the value of general external diameter is 120 μ m～180 μ m (quartz layer of common silica fibre is 125 μ m); The bending resistance of the optical fiber of hollow type design more optimization simultaneously.
Hollow quartz plastic special optical fiber of the present invention has adopted the double clad design, and the refractive index of inner cladding b is greater than the refractive index of surrounding layer c, but all be less than the refractive index of pure silica core layer a, the refractive index missionary society between fibre core and covering causes light to carry out the total internal reflection trend at fibre core like this.The blanket design of multilayer can increase numerical aperture simultaneously, strengthens the light conductivity of optical fiber.
The present invention has two big characteristics: the one, and the hollow type design, there are very big refringence in quartz layer and air like this, form bigger numerical aperture.What particularly point out is that only the pure quartz layer at annular transmits, but not transmits at air layer.And the bending resistance of hollow type design more enhancing optical fiber as previously mentioned.In addition, material cost has also been saved in the hollow type design.The 2nd, outer jacket d design; outer jacket can adopt common Cable jacket materials to get final product (comprising PE, PVC, LSZH etc.); outer jacket provides mechanical protection preferably for optical fiber; product of the present invention can be directly used in and lay under the particular surroundings; such as the microtubule air-blown installation, cure distant apparatus, air equipment, light end equipment etc., can be used for the house wiring of FTTH.
The above only is a preferred embodiments of the present invention, and the interest field that the present invention advocated is not limited thereto.The present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those skilled in the art work as can make various corresponding changes and distortion according to the present invention, but these changes and distortion all should belong to the protection domain of the appended claim of the present invention.
Claims (5)
1, a kind of hollow quartz plastic special optical fiber, it is characterized in that this optical fiber comprises intermediate air layer, pure silica core layer a, be coated on polymkeric substance inner cladding b on the pure silica core layer a, be coated on the polymkeric substance surrounding layer c on the polymkeric substance inner cladding b and be coated on outer jacket d on the polymkeric substance surrounding layer c; The b refractive index of polymkeric substance inner cladding is greater than the refractive index of polymkeric substance surrounding layer c, and all less than the refractive index of pure silica core layer a; Light transmission partly is pure silica core layer a.
2, hollow quartz plastic special optical fiber according to claim 1, the refractive index n 1 of wherein pure silica core layer a is 1.44～1.45.
3, hollow quartz plastic special optical fiber according to claim 2, wherein polymkeric substance inner cladding b adopts silastic material, and refractive index n 2 is 1.36～1.37.
4, hollow quartz plastic special optical fiber according to claim 3, wherein polymkeric substance surrounding layer c adopts the fluorine resin, and refractive index n 3 is 1.33～1.34.
5, according to each described hollow quartz plastic special optical fiber of claim 1-4, wherein outer jacket d adopts Cable jacket materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102271727A CN101446664B (en) | 2008-11-25 | 2008-11-25 | Hollow quartz plastic special optical fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102271727A CN101446664B (en) | 2008-11-25 | 2008-11-25 | Hollow quartz plastic special optical fiber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101446664A true CN101446664A (en) | 2009-06-03 |
| CN101446664B CN101446664B (en) | 2010-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102271727A Active CN101446664B (en) | 2008-11-25 | 2008-11-25 | Hollow quartz plastic special optical fiber |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101788706A (en) * | 2010-03-19 | 2010-07-28 | 深圳市特发信息光网科技股份有限公司 | Pressive bending resistance optical cable and manufacturing method thereof |
| CN102147495A (en) * | 2011-03-18 | 2011-08-10 | 武汉邮电科学研究院 | Nonlinear fiber and ultrashort pulse generating device applying same |
| CN103472531A (en) * | 2013-09-25 | 2013-12-25 | 长飞光纤光缆有限公司 | Low-attenuation high temperature resistance optical fiber |
| CN103941333A (en) * | 2014-05-13 | 2014-07-23 | 深圳市圣诺光电科技有限公司 | Hollow plastic optical fiber and optical cable |
| CN111736255A (en) * | 2020-06-23 | 2020-10-02 | 北京交通大学 | Optical fiber structure for non-circular symmetric scalar mode polarization separation and preparation method thereof |
| CN115097566A (en) * | 2022-07-13 | 2022-09-23 | 中国科学院上海光学精密机械研究所 | Bend-sensitive stimulated Raman scattering suppressed ring-structured optical fiber |
-
2008
- 2008-11-25 CN CN2008102271727A patent/CN101446664B/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101788706A (en) * | 2010-03-19 | 2010-07-28 | 深圳市特发信息光网科技股份有限公司 | Pressive bending resistance optical cable and manufacturing method thereof |
| CN102147495A (en) * | 2011-03-18 | 2011-08-10 | 武汉邮电科学研究院 | Nonlinear fiber and ultrashort pulse generating device applying same |
| CN102147495B (en) * | 2011-03-18 | 2013-04-10 | 武汉邮电科学研究院 | Nonlinear fiber and ultrashort pulse generating device applying same |
| CN103472531A (en) * | 2013-09-25 | 2013-12-25 | 长飞光纤光缆有限公司 | Low-attenuation high temperature resistance optical fiber |
| CN103472531B (en) * | 2013-09-25 | 2015-11-18 | 长飞光纤光缆股份有限公司 | A kind of low decay high-temperature resistant optical fiber |
| CN103941333A (en) * | 2014-05-13 | 2014-07-23 | 深圳市圣诺光电科技有限公司 | Hollow plastic optical fiber and optical cable |
| CN103941333B (en) * | 2014-05-13 | 2017-04-12 | 深圳市圣诺光电科技有限公司 | Hollow plastic optical fiber and optical cable |
| CN111736255A (en) * | 2020-06-23 | 2020-10-02 | 北京交通大学 | Optical fiber structure for non-circular symmetric scalar mode polarization separation and preparation method thereof |
| CN111736255B (en) * | 2020-06-23 | 2021-09-21 | 北京交通大学 | Optical fiber structure for non-circular symmetric scalar mode space degeneracy separation and preparation method thereof |
| CN115097566A (en) * | 2022-07-13 | 2022-09-23 | 中国科学院上海光学精密机械研究所 | Bend-sensitive stimulated Raman scattering suppressed ring-structured optical fiber |
| CN115097566B (en) * | 2022-07-13 | 2024-04-12 | 中国科学院上海光学精密机械研究所 | Bend-sensitive stimulated raman scattering-inhibited ring structured optical fiber |
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| Publication number | Publication date |
|---|---|
| CN101446664B (en) | 2010-11-24 |
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Owner name: SHANGHAI HENGTONG HONGPU COMMUNICATION TECHNOLOGY Free format text: FORMER OWNER: JIANGSU HENGTONG PHOTOELECTRIC CO., LTD. Effective date: 20120217 |
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Effective date of registration: 20120217 Address after: Gongyi Comprehensive Industrial Development Zone 201400 Shanghai Road, Shanghai Fengxian District City, No. 69 Patentee after: Shanghai Hengtong Hongpu Communication Technology Co.,Ltd. Address before: 215234 seven industrial zone, Jiangsu, Wujiang Patentee before: HENGTONG OPTIC-ELECTRIC Co.,Ltd. |
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Owner name: JIANGSU HENGTONG PHOTOELECTRIC CO., LTD. Effective date: 20150416 Owner name: JIANGSU HENTONG OPTICAL NETWORK TECHNOLOGY CO., LT Free format text: FORMER OWNER: SHANGHAI HENGTONG HONGPU COMMUNICATION TECHNOLOGY CO., LTD. Effective date: 20150416 |
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Effective date of registration: 20150416 Address after: Wujiang District of Suzhou City, Jiangsu province 215200 Song Ling Zhen Heng Road No. 88 Patentee after: JIANGSU HENGTONG OPTICAL NETWORK TECHNOLOGY Co.,Ltd. Patentee after: HENGTONG OPTIC-ELECTRIC Co.,Ltd. Address before: 201400 Shanghai friends Fengxian District Comprehensive Industrial Development Zone Road No. 69 Patentee before: Shanghai Hengtong Hongpu Communication Technology Co.,Ltd. |
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Effective date of registration: 20221111 Address after: 215000 88 Hengtong Road, seven Du Town, Wujiang District, Suzhou, Jiangsu Patentee after: HENGTONG OPTIC-ELECTRIC Co.,Ltd. Address before: 215200 Heng Road, Songling Town, Wujiang District, Suzhou City, Jiangsu Province, No. 88 Patentee before: JIANGSU HENGTONG OPTICAL NETWORK TECHNOLOGY Co.,Ltd. Patentee before: HENGTONG OPTIC-ELECTRIC Co.,Ltd. |
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Effective date of registration: 20230922 Address after: 215000 88 Hengtong Road, seven Du Town, Wujiang District, Suzhou, Jiangsu Patentee after: HENGTONG OPTIC-ELECTRIC Co.,Ltd. Patentee after: JIANGSU HENGTONG PHOTOCONDUCTIVE NEW MATERIALS Co.,Ltd. Address before: 215000 88 Hengtong Road, seven Du Town, Wujiang District, Suzhou, Jiangsu Patentee before: HENGTONG OPTIC-ELECTRIC Co.,Ltd. |
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