DE69212017D1 - Verfahren zum Herstellen einer Glasvorform für optische Fasern - Google Patents
Verfahren zum Herstellen einer Glasvorform für optische FasernInfo
- Publication number
- DE69212017D1 DE69212017D1 DE69212017T DE69212017T DE69212017D1 DE 69212017 D1 DE69212017 D1 DE 69212017D1 DE 69212017 T DE69212017 T DE 69212017T DE 69212017 T DE69212017 T DE 69212017T DE 69212017 D1 DE69212017 D1 DE 69212017D1
- Authority
- DE
- Germany
- Prior art keywords
- making
- optical fibers
- glass preform
- preform
- glass
- 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 - Fee Related
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
- C03B37/01205—Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments
- C03B37/01225—Means for changing or stabilising the shape, e.g. diameter, of tubes or rods in general, e.g. collapsing
- C03B37/01248—Means for changing or stabilising the shape, e.g. diameter, of tubes or rods in general, e.g. collapsing by collapsing without drawing
-
- 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
- C03B37/10—Non-chemical treatment
- C03B37/14—Re-forming fibres or filaments, i.e. changing their shape
-
- 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
- C03B37/01205—Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments
- C03B37/01225—Means for changing or stabilising the shape, e.g. diameter, of tubes or rods in general, e.g. collapsing
- C03B37/01257—Heating devices therefor
-
- 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
- C03B2201/30—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi
- C03B2201/31—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi doped with germanium
-
- 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
- C03B2201/30—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi
- C03B2201/40—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi doped with transition metals other than rare earth metals, e.g. Zr, Nb, Ta or Zn
- C03B2201/42—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi doped with transition metals other than rare earth metals, e.g. Zr, Nb, Ta or Zn doped with titanium
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacture, Treatment Of Glass Fibers (AREA)
- Glass Compositions (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3029869A JPH04270132A (ja) | 1991-02-25 | 1991-02-25 | 光ファイバ用ガラス母材の製造方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69212017D1 true DE69212017D1 (de) | 1996-08-14 |
DE69212017T2 DE69212017T2 (de) | 1996-12-19 |
Family
ID=12287980
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69212017T Expired - Fee Related DE69212017T2 (de) | 1991-02-25 | 1992-02-25 | Verfahren zum Herstellen einer Glasvorform für optische Fasern |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP0501429B1 (de) |
JP (1) | JPH04270132A (de) |
KR (1) | KR950004058B1 (de) |
AU (1) | AU649519B2 (de) |
DE (1) | DE69212017T2 (de) |
FI (1) | FI96944C (de) |
NO (1) | NO308524B1 (de) |
TW (1) | TW198002B (de) |
ZA (1) | ZA921271B (de) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR0177088B1 (ko) * | 1993-11-29 | 1999-05-15 | 김광호 | 단일모드 광섬유 1차 모재 오버크래딩 방법 및 장치 |
US5917109A (en) | 1994-12-20 | 1999-06-29 | Corning Incorporated | Method of making optical fiber having depressed index core region |
CA2161939A1 (en) * | 1994-12-20 | 1996-06-21 | George E. Berkey | Method of making optical fiber having depressed index core region |
KR0184481B1 (ko) * | 1996-06-10 | 1999-05-15 | 김광호 | 광섬유 제조장치의 고생산성 광섬유 인출장치 및 그 인출방법 |
AU719475B2 (en) * | 1997-03-27 | 2000-05-11 | Samsung Electronics Co., Ltd. | Apparatus and method for overcladding optical fiber preform rod and optical fiber drawing method |
EP1005659B1 (de) * | 1997-08-19 | 2006-03-29 | Prysmian Cavi e Sistemi Energia S.r.l. | Verfahren und vorrichtung zum herstellen einer vorform für optische fasern |
US6105396A (en) * | 1998-07-14 | 2000-08-22 | Lucent Technologies Inc. | Method of making a large MCVD single mode fiber preform by varying internal pressure to control preform straightness |
JP3819614B2 (ja) * | 1998-10-16 | 2006-09-13 | 信越石英株式会社 | 光ファイバ用石英ガラス母材の製造方法 |
US6446468B1 (en) * | 2000-08-01 | 2002-09-10 | Fitel Usa Corp. | Process for fabricating optical fiber involving overcladding during sintering |
NL1025476C2 (nl) * | 2004-02-12 | 2005-08-15 | Draka Fibre Technology Bv | Werkwijze ter vervaardiging van een vormdeel voor optische vezels. |
WO2007059336A1 (en) * | 2005-11-18 | 2007-05-24 | Nextrom Oy | Method and apparatus for manufacturing water-free optical fiber preforms |
US9212082B2 (en) | 2012-12-26 | 2015-12-15 | Heraeus Quarzglas Gmbh & Co. Kg | System and method for fabricating optical fiber preform and optical fiber |
EP3323791B1 (de) * | 2016-11-22 | 2019-08-28 | Heraeus Quartz North America LLC | Aufwärts-schrumpfen und vorrichtung zur herstellung von glasvorformen |
EP3683195A1 (de) * | 2019-01-15 | 2020-07-22 | Heraeus Quartz North America LLC | Automatisiertes verfahren zur erzeugung der spitze einer glasvorform mit grossem aussendurchmesser |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5852935B2 (ja) * | 1978-11-20 | 1983-11-26 | 三菱マテリアル株式会社 | 光伝送用素材の製造方法 |
JPS5924092B2 (ja) * | 1978-12-29 | 1984-06-07 | 三菱マテリアル株式会社 | 光フアイバ母材の製造法 |
GB2148875B (en) * | 1983-10-24 | 1987-01-28 | Standard Telephones Cables Ltd | Optical fibre preform manufacture |
JPS61117126A (ja) * | 1984-11-13 | 1986-06-04 | Sumitomo Electric Ind Ltd | 光フアイバ用母材の製造方法 |
JPS61227938A (ja) * | 1985-04-03 | 1986-10-11 | Sumitomo Electric Ind Ltd | 光フアイバ用母材の製造方法 |
JPS6236035A (ja) * | 1985-04-18 | 1987-02-17 | Sumitomo Electric Ind Ltd | 光フアイバ母材の製造方法 |
US5059230A (en) * | 1990-01-22 | 1991-10-22 | At&T Bell Laboratories | Fabrication of doped filament optical fibers |
-
1991
- 1991-02-25 JP JP3029869A patent/JPH04270132A/ja active Pending
-
1992
- 1992-02-10 TW TW081100875A patent/TW198002B/zh active
- 1992-02-21 ZA ZA921271A patent/ZA921271B/xx unknown
- 1992-02-24 FI FI920784A patent/FI96944C/fi not_active IP Right Cessation
- 1992-02-24 NO NO920724A patent/NO308524B1/no unknown
- 1992-02-25 KR KR1019920002906A patent/KR950004058B1/ko not_active IP Right Cessation
- 1992-02-25 AU AU11189/92A patent/AU649519B2/en not_active Ceased
- 1992-02-25 EP EP92103199A patent/EP0501429B1/de not_active Expired - Lifetime
- 1992-02-25 DE DE69212017T patent/DE69212017T2/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
AU1118992A (en) | 1992-08-27 |
DE69212017T2 (de) | 1996-12-19 |
AU649519B2 (en) | 1994-05-26 |
FI920784A0 (fi) | 1992-02-24 |
FI920784A (fi) | 1992-08-26 |
KR920016363A (ko) | 1992-09-24 |
ZA921271B (en) | 1993-04-28 |
FI96944B (fi) | 1996-06-14 |
JPH04270132A (ja) | 1992-09-25 |
FI96944C (fi) | 1996-09-25 |
EP0501429B1 (de) | 1996-07-10 |
NO920724L (no) | 1992-08-26 |
NO920724D0 (no) | 1992-02-24 |
EP0501429A1 (de) | 1992-09-02 |
TW198002B (de) | 1993-01-11 |
KR950004058B1 (ko) | 1995-04-25 |
NO308524B1 (no) | 2000-09-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |