WO2004089837A2 - Verfahren zur herstellung einer vorform für optische fasern - Google Patents
Verfahren zur herstellung einer vorform für optische fasern Download PDFInfo
- Publication number
- WO2004089837A2 WO2004089837A2 PCT/EP2004/003665 EP2004003665W WO2004089837A2 WO 2004089837 A2 WO2004089837 A2 WO 2004089837A2 EP 2004003665 W EP2004003665 W EP 2004003665W WO 2004089837 A2 WO2004089837 A2 WO 2004089837A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- plasma flame
- sio
- core glass
- plasma
- cylinder
- Prior art date
Links
Classifications
-
- 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
- C03B37/012—Manufacture of preforms for drawing fibres or filaments
- C03B37/0128—Manufacture of preforms for drawing fibres or filaments starting from pulverulent glass
- C03B37/01291—Manufacture of preforms for drawing fibres or filaments starting from pulverulent glass by progressive melting, e.g. melting glass powder during delivery to and adhering the so-formed melt to a target or preform, e.g. the Plasma Oxidation Deposition [POD] process
-
- 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
- C03B37/012—Manufacture of preforms for drawing fibres or filaments
- C03B37/01205—Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments
- C03B37/01211—Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments by inserting one or more rods or tubes into a tube
-
- 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
- C03B37/012—Manufacture of preforms for drawing fibres or filaments
- C03B37/014—Manufacture of preforms for drawing fibres or filaments made entirely or partially by chemical means, e.g. vapour phase deposition of bulk porous glass either by outside vapour deposition [OVD], or by outside vapour phase oxidation [OVPO] or by vapour axial deposition [VAD]
- C03B37/01413—Reactant delivery systems
- C03B37/0142—Reactant deposition burners
- C03B37/01426—Plasma deposition burners or torches
-
- 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
- C03B37/012—Manufacture of preforms for drawing fibres or filaments
- C03B37/014—Manufacture of preforms for drawing fibres or filaments made entirely or partially by chemical means, e.g. vapour phase deposition of bulk porous glass either by outside vapour deposition [OVD], or by outside vapour phase oxidation [OVPO] or by vapour axial deposition [VAD]
- C03B37/01466—Means for changing or stabilising the diameter or form of tubes or rods
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2201/00—Type of glass produced
- C03B2201/06—Doped silica-based glasses
- C03B2201/08—Doped silica-based glasses doped with boron or fluorine or other refractive index decreasing dopant
- C03B2201/12—Doped silica-based glasses doped with boron or fluorine or other refractive index decreasing dopant doped with fluorine
-
- 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
Definitions
- this object is achieved on the one hand in that a plasma flame is used to form and deposit the SiO 2 particles on the core glass cylinder, the ultraviolet light having a wavelength of 214 nm with an intensity of at least 0.9 ⁇ W. determined using the plasma flame intensity measurement - emits.
- a possible explanation for this surprising effect is that, due to the high UV intensity at the wavelength of 214 nm, a defect is formed which decreases inwards from the surface of the core glass cylinder. These are defects which produce absorption in the UV range (induced absorption) and also “precursor defects”. These defects in turn cause absorption with a maximum which is also in the range of the wavelength of 214 nm, and which is especially effective in particular in the region near the surface. the "self-absorption" thus generated of.
- the SiO 2 particles are deposited on the cylinder surface in layers with a layer thickness such that they result in layers with layer thicknesses of at most 0.05 ⁇ m in the optical fiber.
- SF ⁇ is preferably used as the etching gas.
- FIG. 3 shows the measurement of the intensity of the plasma flame in the UV
- Figure 4 is a diagram of the absorption generated in the core glass cylinder
- the viewing direction is not perpendicular to the vertical main direction 35 of the plasma flame 2, but at an angle of approximately 82 ° to it, as indicated by the angle to the horizontal 36.
- the area of maximum intensity at the upper edge of the reaction sleeve 8 (and outside of this), which projects beyond the coil 7 by 5 -10 mm, is selected as the observation point within the plasma flame 2. It can be assumed that an even higher UV intensity could also be measured within the reaction sleeve 8, but this can only be determined with great effort in practice.
- the result of the measurement is an integral intensity over a region of the plasma flame 2, which is indicated in FIG. 3 as a projection 30 of the measurement spot onto the envelope of the plasma flame 2.
- an etching gas stream of SF 6 is introduced into the bore of the substrate tube.
- a cladding glass layer with a thickness of approximately 4.3 mm is produced on the substrate tube.
- the etching gas flow from SF 6 is dimensioned such that the substrate tube is completely removed immediately before the outer deposition process is completed, and only the cladding glass tube with a wall thickness of approximately 4 mm is obtained.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- Manufacturing & Machinery (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Manufacture, Treatment Of Glass Fibers (AREA)
- Glass Compositions (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005518161A JP4157558B2 (ja) | 2003-04-09 | 2004-04-06 | 光ファイバ用プリフォームの製造方法 |
US10/552,539 US7716952B2 (en) | 2003-04-09 | 2004-04-06 | Method for the production of a blank mold for optical fibers |
US12/730,784 US20100186453A1 (en) | 2003-04-09 | 2010-03-24 | Method for the production of a blank mold for optical fibers |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10316487.1 | 2003-04-09 | ||
DE10316487A DE10316487B4 (de) | 2003-04-09 | 2003-04-09 | Verfahren zur Herstellung einer Vorform für optische Fasern |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/730,784 Division US20100186453A1 (en) | 2003-04-09 | 2010-03-24 | Method for the production of a blank mold for optical fibers |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2004089837A2 true WO2004089837A2 (de) | 2004-10-21 |
WO2004089837A3 WO2004089837A3 (de) | 2005-01-20 |
Family
ID=33103306
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2004/003665 WO2004089837A2 (de) | 2003-04-09 | 2004-04-06 | Verfahren zur herstellung einer vorform für optische fasern |
Country Status (5)
Country | Link |
---|---|
US (2) | US7716952B2 (de) |
JP (1) | JP4157558B2 (de) |
CN (1) | CN100345783C (de) |
DE (1) | DE10316487B4 (de) |
WO (1) | WO2004089837A2 (de) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005015706B4 (de) * | 2005-04-05 | 2008-07-03 | Heraeus Quarzglas Gmbh & Co. Kg | Verfahren zur Herstellung einer Vorform für optische Fasern |
DE102006031898B4 (de) * | 2006-07-07 | 2009-09-10 | Heraeus Quarzglas Gmbh & Co. Kg | Verfahren zur Herstellung eines rohrförmigen Halbzeugs aus fluordotiertem Quarzglas |
EP1942083A1 (de) * | 2006-12-07 | 2008-07-09 | Datwyler Fiber Optics S.A. | Verfahren und Vorrichtung zur Herstellung einer Vorform für eine aktive optische Faser, aktive optische Faser und Verstärker |
DE102007003889B3 (de) * | 2007-01-19 | 2008-09-11 | Heraeus Quarzglas Gmbh & Co. Kg | Quarzglasrohr als Halbzeug für die Vorform- und Faserherstellung, dessen Verwendung sowie Verfahren zur Herstellung des Quarzglasrohres |
DE102008049325B4 (de) * | 2008-09-29 | 2011-08-25 | Heraeus Quarzglas GmbH & Co. KG, 63450 | Verfahren zur Herstellung eines rohrförmigen Halbzeugs aus Quarzglas sowie Halbzeug aus Quarzglas |
DE102009004757B4 (de) | 2008-11-12 | 2011-12-08 | J-Fiber Gmbh | Substratrohr für sowie Verfahren zur plasmagestützten Herstellung von dotierten oder undotierten Rohren als Vorformen für die Fertigung optischer Fasern und Verwendung. |
DE102009004756B4 (de) | 2008-11-12 | 2011-12-08 | J-Fiber Gmbh | Verfahren zur Herstellung einer Vorform für optische Fasern mit Vieleckkern |
US20180169279A1 (en) | 2011-03-07 | 2018-06-21 | The Trustees Of Columbia University In The City Of New York | Apparatus, method and system for selectively affecting and/or killing a virus |
EP3848091A1 (de) | 2011-03-07 | 2021-07-14 | The Trustees of Columbia University in the City of New York | Vorrichtung, verfahren und system zum selektiven beeinflussen und/oder töten von bakterien |
DE102011108612A1 (de) * | 2011-07-27 | 2013-01-31 | Heraeus Quarzglas Gmbh & Co. Kg | Plasma-Abscheideprozess zur Herstellung einer optischen Vorform mit einer Mantelglasschicht aus fluordotiertem Quarzglas |
DE102013202589B4 (de) | 2012-02-29 | 2022-06-02 | Lothar Brehm | Verfahren zum Fertigen eines Lichtwellenleiters mit einem Kern aus einem dotierten oder undotierten Kernmaterial in einer Vieleckform |
CN102849937B (zh) * | 2012-09-07 | 2016-07-06 | 长飞光纤光缆股份有限公司 | 一种大尺寸实心光纤预制棒及其制备方法和设备 |
NL2011075C2 (en) | 2013-07-01 | 2015-01-05 | Draka Comteq Bv | Pcvd process with removal of substrate tube. |
CN103543491B (zh) * | 2013-11-08 | 2015-08-19 | 烽火通信科技股份有限公司 | 超低损耗高带宽耐辐照多模光纤及其制造方法 |
RU2547032C1 (ru) * | 2014-03-31 | 2015-04-10 | Российская Федерация, от имени которой выступает Министерство промышленности и торговли Российской Федерации (Минпромторг России) | Способ изготовления многомодовых малодисперсионных световодов |
US10261244B2 (en) * | 2016-02-15 | 2019-04-16 | Nxgen Partners Ip, Llc | System and method for producing vortex fiber |
CN111847866A (zh) * | 2020-07-14 | 2020-10-30 | 复旦大学 | 低损耗光纤预制棒外包层及制备设备和制备方法及光纤 |
CN114634303A (zh) * | 2022-02-24 | 2022-06-17 | 浙江富通光纤技术有限公司 | 预制棒的制造工艺以及光纤 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4162908A (en) * | 1975-08-16 | 1979-07-31 | Heraeus Quarzschmelze Gmbh | Method of producing synthetic quartz glass, apparatus for the practice of the method, and use of the synthetic quartz glass |
WO1999052832A1 (en) * | 1998-04-10 | 1999-10-21 | Fibercore, Inc. | Method of making an optical fiber preform |
US6253580B1 (en) * | 1997-12-19 | 2001-07-03 | Fibercore, Inc. | Method of making a tubular member for optical fiber production using plasma outside vapor deposition |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS52121341A (en) * | 1976-04-06 | 1977-10-12 | Nippon Telegr & Teleph Corp <Ntt> | Production of optical fiber base materials and production apparatus fo r the same |
US4049413A (en) * | 1976-06-21 | 1977-09-20 | Bell Telephone Laboratories, Incorporated | Method for making optical fibers with variations in core diameter |
FR2432478B1 (de) * | 1978-07-31 | 1982-03-12 | Quartz & Silice | |
US4243298A (en) * | 1978-10-06 | 1981-01-06 | International Telephone And Telegraph Corporation | High-strength optical preforms and fibers with thin, high-compression outer layers |
US4345928A (en) * | 1979-10-09 | 1982-08-24 | Nippon Telegraph & Telephone Public Corporation | Fabrication method of single-mode optical fiber preforms |
US4402720A (en) * | 1980-01-22 | 1983-09-06 | Nippon Telegraph & Telephone Public Corporation | Process for preparing glass preform for optical fiber |
DE3445239A1 (de) * | 1984-12-12 | 1986-06-19 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Verfahren zur herstellung von lichtleitfasern |
CA1260684A (en) * | 1985-03-19 | 1989-09-26 | Koichi Abe | Optical waveguide manufacture |
JPH0832572B2 (ja) * | 1987-03-11 | 1996-03-29 | 住友電気工業株式会社 | 光フアイバ用母材の製造方法 |
JPS63248733A (ja) * | 1987-04-06 | 1988-10-17 | Hitachi Cable Ltd | シングルモ−ド光フアイバ母材の製造法 |
CA2040682A1 (en) * | 1990-04-20 | 1991-10-21 | Bruce L. Booth | Moisture sealing of optical waveguide devices with doped silicon dioxide having a silicon monoxide undercoat |
JP3206916B2 (ja) * | 1990-11-28 | 2001-09-10 | 住友電気工業株式会社 | 欠陥濃度低減方法、紫外線透過用光学ガラスの製造方法及び紫外線透過用光学ガラス |
US5522003A (en) * | 1993-03-02 | 1996-05-28 | Ward; Robert M. | Glass preform with deep radial gradient layer and method of manufacturing same |
JP3428066B2 (ja) * | 1993-05-10 | 2003-07-22 | 株式会社フジクラ | フッ素ドープ石英ガラスの製造方法 |
EP1112233A4 (de) * | 1998-05-29 | 2005-03-09 | Corning Inc | Verfahren zur herstellung einer glasvorform |
US6468889B1 (en) * | 2000-08-08 | 2002-10-22 | Advanced Micro Devices, Inc. | Backside contact for integrated circuit and method of forming same |
CN1337367A (zh) * | 2001-09-08 | 2002-02-27 | 长飞光纤光缆有限公司 | 一种光纤预制棒的制造方法 |
-
2003
- 2003-04-09 DE DE10316487A patent/DE10316487B4/de not_active Expired - Lifetime
-
2004
- 2004-04-06 CN CNB2004800095557A patent/CN100345783C/zh not_active Expired - Lifetime
- 2004-04-06 US US10/552,539 patent/US7716952B2/en active Active
- 2004-04-06 WO PCT/EP2004/003665 patent/WO2004089837A2/de active Application Filing
- 2004-04-06 JP JP2005518161A patent/JP4157558B2/ja not_active Expired - Lifetime
-
2010
- 2010-03-24 US US12/730,784 patent/US20100186453A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4162908A (en) * | 1975-08-16 | 1979-07-31 | Heraeus Quarzschmelze Gmbh | Method of producing synthetic quartz glass, apparatus for the practice of the method, and use of the synthetic quartz glass |
US6253580B1 (en) * | 1997-12-19 | 2001-07-03 | Fibercore, Inc. | Method of making a tubular member for optical fiber production using plasma outside vapor deposition |
WO1999052832A1 (en) * | 1998-04-10 | 1999-10-21 | Fibercore, Inc. | Method of making an optical fiber preform |
Non-Patent Citations (4)
Title |
---|
BIRYUKOV A S ET AL: "USE OF A MICROWAVE DISCHARGE AT ATMOSPHERIC PRESSURE TO OBTAIN OPTICAL FIBERS WITH FLUOROSILICATE GLASS REFLECTING CLADDING" SOVIET TECHNICAL PHYSICS LETTERS, AMERICAN INSTITUTE OF PHYSICS. NEW YORK, US, Bd. 17, Nr. 3, M{rz 1991 (1991-03), Seiten 188-189, XP000242111 * |
PATENT ABSTRACTS OF JAPAN Bd. 0130, Nr. 15 (C-559), 13. Januar 1989 (1989-01-13) & JP 63 222035 A (SUMITOMO ELECTRIC IND LTD), 14. September 1988 (1988-09-14) * |
PATENT ABSTRACTS OF JAPAN Bd. 0130, Nr. 56 (C-566), 8. Februar 1989 (1989-02-08) & JP 63 248733 A (HITACHI CABLE LTD), 17. Oktober 1988 (1988-10-17) * |
PATENT ABSTRACTS OF JAPAN Bd. 1995, Nr. 02, 31. März 1995 (1995-03-31) & JP 6 321553 A (FUJIKURA LTD), 22. November 1994 (1994-11-22) * |
Also Published As
Publication number | Publication date |
---|---|
DE10316487A1 (de) | 2004-11-04 |
CN100345783C (zh) | 2007-10-31 |
DE10316487B4 (de) | 2005-03-31 |
JP4157558B2 (ja) | 2008-10-01 |
US20100186453A1 (en) | 2010-07-29 |
CN1771205A (zh) | 2006-05-10 |
US20060213228A1 (en) | 2006-09-28 |
JP2006512277A (ja) | 2006-04-13 |
WO2004089837A3 (de) | 2005-01-20 |
US7716952B2 (en) | 2010-05-18 |
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