CA1274393A - Method of and apparatus for reducing volume and surface defects in silica optical fibres - Google Patents
Method of and apparatus for reducing volume and surface defects in silica optical fibresInfo
- Publication number
- CA1274393A CA1274393A CA000503656A CA503656A CA1274393A CA 1274393 A CA1274393 A CA 1274393A CA 000503656 A CA000503656 A CA 000503656A CA 503656 A CA503656 A CA 503656A CA 1274393 A CA1274393 A CA 1274393A
- Authority
- CA
- Canada
- Prior art keywords
- furnace
- preform
- fibre
- temperature
- silica
- 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.)
- Expired - Lifetime
Links
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 49
- 239000000377 silicon dioxide Substances 0.000 title claims abstract description 21
- 230000007547 defect Effects 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 15
- 230000003287 optical effect Effects 0.000 title claims abstract description 11
- 230000001603 reducing effect Effects 0.000 title claims description 11
- 239000000835 fiber Substances 0.000 claims abstract description 20
- 230000007704 transition Effects 0.000 claims abstract description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 12
- 238000001816 cooling Methods 0.000 claims abstract description 3
- 239000000463 material Substances 0.000 claims description 12
- 239000013307 optical fiber Substances 0.000 claims description 9
- 239000007789 gas Substances 0.000 claims description 7
- 239000011521 glass Substances 0.000 claims description 7
- 239000011261 inert gas Substances 0.000 claims description 7
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 6
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 230000003213 activating effect Effects 0.000 claims description 2
- 230000003750 conditioning effect Effects 0.000 claims 1
- 238000000151 deposition Methods 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 5
- 125000004432 carbon atom Chemical group C* 0.000 abstract description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 4
- 208000013201 Stress fracture Diseases 0.000 description 3
- 229910052681 coesite Inorganic materials 0.000 description 3
- 229910052906 cristobalite Inorganic materials 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 229910052682 stishovite Inorganic materials 0.000 description 3
- 229910052905 tridymite Inorganic materials 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 206010037660 Pyrexia Diseases 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000005816 glass manufacturing process Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 239000013081 microcrystal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 230000000930 thermomechanical effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
- C03C25/10—Coating
- C03C25/12—General methods of coating; Devices therefor
- C03C25/22—Deposition from the vapour phase
- C03C25/223—Deposition from the vapour phase by chemical vapour deposition or pyrolysis
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
- C03B37/025—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from reheated softened tubes, rods, fibres or filaments, e.g. drawing fibres from preforms
- C03B37/027—Fibres composed of different sorts of glass, e.g. glass optical fibres
- C03B37/02718—Thermal treatment of the fibre during the drawing process, e.g. cooling
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
- C03B37/025—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from reheated softened tubes, rods, fibres or filaments, e.g. drawing fibres from preforms
- C03B37/029—Furnaces therefor
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
- C03C25/10—Coating
- C03C25/104—Coating to obtain optical fibres
- C03C25/106—Single coatings
- C03C25/1061—Inorganic coatings
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2205/00—Fibre drawing or extruding details
- C03B2205/56—Annealing or re-heating the drawn fibre prior to coating
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacturing & Machinery (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Inorganic Chemistry (AREA)
- Manufacture, Treatment Of Glass Fibers (AREA)
- Glass Compositions (AREA)
- Glass Melting And Manufacturing (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT67265-A/85 | 1985-03-18 | ||
| IT67265/85A IT1184909B (it) | 1985-03-18 | 1985-03-18 | Procedimento ed apparecchiatura per la riduzione dei difetti di volume e di superficie nelle fibre ottiche in silice |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1274393A true CA1274393A (en) | 1990-09-25 |
Family
ID=11300974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000503656A Expired - Lifetime CA1274393A (en) | 1985-03-18 | 1986-03-10 | Method of and apparatus for reducing volume and surface defects in silica optical fibres |
Country Status (6)
| Country | Link |
|---|---|
| US (2) | US4659354A (cg-RX-API-DMAC7.html) |
| EP (1) | EP0195399B1 (cg-RX-API-DMAC7.html) |
| JP (1) | JPS61215232A (cg-RX-API-DMAC7.html) |
| CA (1) | CA1274393A (cg-RX-API-DMAC7.html) |
| DE (2) | DE3666945D1 (cg-RX-API-DMAC7.html) |
| IT (1) | IT1184909B (cg-RX-API-DMAC7.html) |
Families Citing this family (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5024688A (en) * | 1988-11-30 | 1991-06-18 | Fujikura Ltd. | Method for producing carbon-coated optical fiber |
| CA2004234C (en) * | 1988-12-01 | 1994-04-19 | Keiji Oohashi | Optical fiber production method |
| US5269825A (en) * | 1989-04-28 | 1993-12-14 | Fujikura, Ltd. | Method of manufacturing radiation-resistant optical fiber |
| US5147432A (en) * | 1989-10-19 | 1992-09-15 | At&T Bell Laboratories | Methods of and apparatus for coating optical fibers |
| US5199993A (en) * | 1989-10-19 | 1993-04-06 | At&T Bell Laboratories | Methods of and apparatus for coating optical fibers |
| US5242477A (en) * | 1989-10-19 | 1993-09-07 | At&T Bell Laboratories | Apparatus for coating optical fibers |
| EP0462893B1 (en) * | 1990-06-19 | 1995-04-12 | Fujikura Ltd. | Method for splicing and reinforcing carbon coated optical fibers |
| JP2798486B2 (ja) * | 1990-08-01 | 1998-09-17 | 住友電気工業株式会社 | ハーメチックコート光ファイバの製造方法及び製造装置 |
| DE4028275A1 (de) * | 1990-09-06 | 1992-03-12 | Kabelmetal Electro Gmbh | Verfahren zur herstellung von glasfaser-lichtwellenleitern mit erhoehter zugfestigkeit |
| US5059229A (en) * | 1990-09-24 | 1991-10-22 | Corning Incorporated | Method for producing optical fiber in a hydrogen atmosphere to prevent attenuation |
| US5152817A (en) * | 1991-01-15 | 1992-10-06 | Corning Incorporated | Reactor for coating optical fibers |
| US5346520A (en) * | 1992-09-23 | 1994-09-13 | Corning Incorporated | Apparatus for applying a carbon coating to optical fibers |
| US5755850A (en) * | 1992-09-24 | 1998-05-26 | Iowa State University Research Foundation | Method of making a surgical laser fiber from a monolithic silica titania glass rod |
| DE4339077C2 (de) * | 1993-11-16 | 1997-03-06 | Rheydt Kabelwerk Ag | Verfahren zum Ziehen einer optischen Faser und Vorrichtung zu dessen Durchführung |
| US5868734A (en) * | 1995-11-29 | 1999-02-09 | Iowa State University Research Foundation, Inc. | Methods of using silica-titania clad fibers |
| US6345519B1 (en) * | 1996-10-25 | 2002-02-12 | Corning Incorporated | Method of reducing break sources in drawn fibers by active oxidation of contaminants in a reducing atmosphere |
| CN1247477C (zh) * | 1999-05-27 | 2006-03-29 | 住友电气工业株式会社 | 光纤的制造装置和制造方法 |
| JP2002234751A (ja) * | 2001-01-31 | 2002-08-23 | Fujikura Ltd | 光ファイバ紡糸方法 |
| JP2003114347A (ja) * | 2001-07-30 | 2003-04-18 | Furukawa Electric Co Ltd:The | シングルモード光ファイバ、その製造方法および製造装置 |
| KR100429532B1 (ko) * | 2001-10-22 | 2004-05-03 | 삼성전자주식회사 | 광섬유제조장치의 드로타워 구조 |
| US6789400B2 (en) * | 2001-11-30 | 2004-09-14 | The Boc Group, Inc. | Cap assembly and optical fiber cooling process |
| US20030205066A1 (en) * | 2002-03-25 | 2003-11-06 | Ghani M. Usman | Method and apparatus for efficient cooling of optical fiber during its manufacture |
| US20030200772A1 (en) * | 2002-04-30 | 2003-10-30 | Foster John D. | Methods and apparatus for forming optical fiber |
| KR100545814B1 (ko) * | 2002-08-31 | 2006-01-24 | 엘에스전선 주식회사 | 광섬유 인선 용해로 및 이를 이용한 광섬유 인선방법 |
| US20040107736A1 (en) * | 2002-12-09 | 2004-06-10 | Alcatel | Pure upflow furnace |
| US20070022786A1 (en) * | 2003-04-28 | 2007-02-01 | Foster John D | Methods and apparatus for forming heat treated optical fiber |
| CN101090874B (zh) * | 2004-12-27 | 2011-03-02 | 古河电气工业株式会社 | 玻璃条的制造方法、玻璃条以及玻璃基板 |
| US8074474B2 (en) * | 2007-11-29 | 2011-12-13 | Corning Incorporated | Fiber air turn for low attenuation fiber |
| JP2020528863A (ja) * | 2017-07-25 | 2020-10-01 | メイド イン スペース インコーポレイティッド | 光ファイバを製造するためのシステムおよび方法 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3125428A (en) * | 1964-03-17 | Uethod for coating silica rods | ||
| US4306897A (en) * | 1980-04-16 | 1981-12-22 | International Telephone And Telegraph Corporation | Method of fabricating fatigue resistant optical fibers |
| US4400190A (en) * | 1981-09-28 | 1983-08-23 | Gte Laboratories Incorporated | Graphite element for use in a furnace for drawing optical fiber |
| US4514205A (en) * | 1981-11-05 | 1985-04-30 | Corning Glass Works | Fiber cooling apparatus |
| US4437870A (en) * | 1981-11-05 | 1984-03-20 | Corning Glass Works | Optical waveguide fiber cooler |
| US4440556A (en) * | 1982-06-23 | 1984-04-03 | International Telephone And Telegraph Corporation | Optical fiber drawing using plasma torch |
| JPS59162149A (ja) * | 1983-03-02 | 1984-09-13 | Ushio Inc | 石英ガラスの表面に炭化珪素膜を設ける方法 |
| US4613521A (en) * | 1983-06-30 | 1986-09-23 | At&T Technologies, Inc. | Methods of and apparatus for coating a lightguide fiber |
| DE3340640A1 (de) * | 1983-11-10 | 1985-05-23 | Felten & Guilleaume Energietechnik GmbH, 5000 Köln | Verfahren zur herstellung von siliciumcarbidfasern |
| US4578098A (en) * | 1984-06-15 | 1986-03-25 | At&T Technologies, Inc. | Apparatus for controlling lightguide fiber tension during drawing |
-
1985
- 1985-03-18 IT IT67265/85A patent/IT1184909B/it active
-
1986
- 1986-01-08 US US06/817,025 patent/US4659354A/en not_active Expired - Fee Related
- 1986-03-10 CA CA000503656A patent/CA1274393A/en not_active Expired - Lifetime
- 1986-03-13 JP JP61053817A patent/JPS61215232A/ja active Granted
- 1986-03-17 DE DE8686103599T patent/DE3666945D1/de not_active Expired
- 1986-03-17 EP EP86103599A patent/EP0195399B1/en not_active Expired
- 1986-03-17 DE DE198686103599T patent/DE195399T1/de active Pending
- 1986-11-13 US US06/930,804 patent/US4702759A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| US4659354A (en) | 1987-04-21 |
| US4702759A (en) | 1987-10-27 |
| EP0195399A1 (en) | 1986-09-24 |
| DE3666945D1 (en) | 1989-12-21 |
| IT8567265A1 (it) | 1986-09-18 |
| EP0195399B1 (en) | 1989-11-15 |
| JPH0587455B2 (cg-RX-API-DMAC7.html) | 1993-12-16 |
| JPS61215232A (ja) | 1986-09-25 |
| IT8567265A0 (it) | 1985-03-18 |
| IT1184909B (it) | 1987-10-28 |
| DE195399T1 (de) | 1987-02-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKLA | Lapsed |