DE69500319D1 - Verfahren zum Herstellen von monomodalen optischen Fasern aus Fluoridglas - Google Patents

Verfahren zum Herstellen von monomodalen optischen Fasern aus Fluoridglas

Info

Publication number
DE69500319D1
DE69500319D1 DE69500319T DE69500319T DE69500319D1 DE 69500319 D1 DE69500319 D1 DE 69500319D1 DE 69500319 T DE69500319 T DE 69500319T DE 69500319 T DE69500319 T DE 69500319T DE 69500319 D1 DE69500319 D1 DE 69500319D1
Authority
DE
Germany
Prior art keywords
production
optical fibers
fluoride glass
monomodal optical
monomodal
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
Application number
DE69500319T
Other languages
English (en)
Other versions
DE69500319T2 (de
Inventor
Marco Braglia
Giuseppe Cocito
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Optical Technologies Center Srl Turin/torino
Original Assignee
CSELT Centro Studi e Laboratori Telecomunicazioni SpA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by CSELT Centro Studi e Laboratori Telecomunicazioni SpA filed Critical CSELT Centro Studi e Laboratori Telecomunicazioni SpA
Application granted granted Critical
Publication of DE69500319D1 publication Critical patent/DE69500319D1/de
Publication of DE69500319T2 publication Critical patent/DE69500319T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • C03B37/01228—Removal of preform material
    • 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
    • C03B37/01265—Manufacture of preforms for drawing fibres or filaments starting entirely or partially from molten glass, e.g. by dipping a preform in a melt
    • C03B37/01271—Manufacture of preforms for drawing fibres or filaments starting entirely or partially from molten glass, e.g. by dipping a preform in a melt by centrifuging
    • 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
    • C03B37/02754—Solid fibres drawn from hollow preforms
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2201/00—Type of glass produced
    • C03B2201/80—Non-oxide glasses or glass-type compositions
    • C03B2201/82—Fluoride glasses, e.g. ZBLAN glass

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)
DE69500319T 1994-03-16 1995-03-13 Verfahren zum Herstellen von monomodalen optischen Fasern aus Fluoridglas Expired - Fee Related DE69500319T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT94TO000186A IT1267418B1 (it) 1994-03-16 1994-03-16 Procedimento per la realizzazione di fibre ottiche monomodo in vetro fluorurato.

Publications (2)

Publication Number Publication Date
DE69500319D1 true DE69500319D1 (de) 1997-07-03
DE69500319T2 DE69500319T2 (de) 1997-10-09

Family

ID=11412313

Family Applications (2)

Application Number Title Priority Date Filing Date
DE0672628T Pending DE672628T1 (de) 1994-03-16 1995-03-13 Verfahren zum Herstellen von monomodalen optischen Fasern aus Fluoridglas.
DE69500319T Expired - Fee Related DE69500319T2 (de) 1994-03-16 1995-03-13 Verfahren zum Herstellen von monomodalen optischen Fasern aus Fluoridglas

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE0672628T Pending DE672628T1 (de) 1994-03-16 1995-03-13 Verfahren zum Herstellen von monomodalen optischen Fasern aus Fluoridglas.

Country Status (6)

Country Link
US (1) US5656056A (de)
EP (1) EP0672628B1 (de)
JP (1) JP2739683B2 (de)
CA (1) CA2142061C (de)
DE (2) DE672628T1 (de)
IT (1) IT1267418B1 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2741061B1 (fr) * 1995-11-13 1998-03-20 Alcatel Fibres Optiques Procede de fabrication d'une fibre optique monomode et amplificateur optique utilisant une telle fibre
FR2750129B1 (fr) * 1996-06-20 1998-07-31 Alsthom Cge Alcatel Procede de fabrication d'une preforme de fibre optique en verre fluore
US6131414A (en) * 1997-05-13 2000-10-17 Shin-Etsu Chemical Co., Ltd. Method for making a preform for optical fibers by drawing a mother ingot
DE19723833A1 (de) * 1997-06-06 1998-12-10 Alsthom Cge Alcatel Verstärkungslichtwellenleiter und Verfahren zu seiner Herstellung
EP1364919B1 (de) * 1998-11-05 2008-02-13 Shin-Etsu Chemical Co., Ltd. Verfahren zum Herstellen einer Vorform und einer optischen Faser aus der Vorform
US6444133B1 (en) * 2000-04-28 2002-09-03 Corning Incorporated Method of making photonic band gap fibers
US6598429B1 (en) 2000-11-17 2003-07-29 Beamtek, Inc. Method for fabricating gradient-index rods and rod arrays
EP1414763B1 (de) 2001-07-06 2012-11-28 Corning Incorporated Verfahren zur herstellung von fasern mit photonischer bandlücke
US20070062223A1 (en) * 2006-10-16 2007-03-22 Sterlite Optical Technologies Ltd Optical fiber having reduced polarization mode dispersion (PMD) and method for producing the same
US8265431B2 (en) * 2009-11-06 2012-09-11 Baker Hughes Incorporated Rotated single or multicore optical fiber
CN114538767B (zh) * 2022-03-30 2024-04-26 中国计量大学 一种光纤预制棒的成型装置及其成型方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5141640A (en) * 1974-10-05 1976-04-08 Kobe Steel Ltd Kanjosozaino naimensanaraisochi
US4292063A (en) * 1980-05-05 1981-09-29 Northern Telecom Limited Manufacture of an optical fiber preform with micro-wave plasma activated deposition in a tube
GB2104225B (en) * 1981-08-06 1985-05-09 Standard Telephones Cables Ltd Testing plastics coatings on optical fibres
NL8201453A (nl) * 1982-04-06 1983-11-01 Philips Nv Werkwijze voor de vervaardiging van optische vezels.
JPS62265140A (ja) 1986-05-14 1987-11-18 Seiko Epson Corp 円筒状光フアイバ−母材の製造方法
EP0247322A3 (de) * 1986-05-27 1989-02-01 Siemens Aktiengesellschaft Verfahren zur Herstellung einer Vorform zum Ziehen von optischen Glasfasern
US5055120A (en) * 1987-12-15 1991-10-08 Infrared Fiber Systems, Inc. Fluoride glass fibers with reduced defects
CA1330022C (en) * 1987-12-28 1994-06-07 Shigeo Masuda Plastic-coated optical transmission fiber and an estimating method thereof
US4898777A (en) * 1989-01-24 1990-02-06 Infrared Fiber Systems High-strength fluoride glass fibers and process of making
US5152816A (en) * 1989-10-16 1992-10-06 Corning Incorporated Method of enlarging end of capillary tube bore
JPH0416524A (ja) * 1990-05-09 1992-01-21 Nippon Telegr & Teleph Corp <Ntt> フッ化物光ファイバの製造方法

Also Published As

Publication number Publication date
IT1267418B1 (it) 1997-02-05
EP0672628B1 (de) 1997-05-28
JP2739683B2 (ja) 1998-04-15
US5656056A (en) 1997-08-12
JPH07277756A (ja) 1995-10-24
DE69500319T2 (de) 1997-10-09
ITTO940186A1 (it) 1995-09-16
CA2142061C (en) 1999-06-01
ITTO940186A0 (it) 1994-03-16
EP0672628A1 (de) 1995-09-20
DE672628T1 (de) 1996-05-02
CA2142061A1 (en) 1995-09-17

Similar Documents

Publication Publication Date Title
DE69420818D1 (de) Verfahren zum Herstellen von Vorformen für optische Fasern
DE69518092D1 (de) Verfahren zum herstellen von vorformen für optische fasern
DE69004140D1 (de) Verfahren zum Ziehen von optischen Fasern.
ATE50236T1 (de) Verfahren zum herstellen einer optischen faser.
DE69312104D1 (de) Verfahren zum Herstellen einer Vorform für optische Fasern
DE69701611D1 (de) Verfahren zum Herstellen von mit Germanium dotierten optischen Fasern mit verringerter Brillouin-Streuung
ATE219255T1 (de) Verfahren zum verbinden von optischen fasern
DE69502689D1 (de) Verfahren zur Herstellung von Polarisierendem Glas
DE3675036D1 (de) Verfahren zum herstellen von optischen mehrkernfasern.
DE69407864D1 (de) Verfahren zum Herstellen von porösen Vorformen für optische Fasern
DE59507134D1 (de) Verfahren zum wärmeweichen Trennen von Glasrohren oder -platten
DE69701114D1 (de) Verfahren zum Herstellen einer Vorform für optische Fasern
DE69900086D1 (de) Verfahren zum kontinuierlichen Ziehen von Vorformen für die Herstellung optischer Fasern
DE69325477D1 (de) Verfahren zum Vereiningen von optischen Fasern
DE69210445D1 (de) Verfahren zur Herstellung von farbbeschichteten, optischen Fasern
DE69003054D1 (de) Verfahren zur herstellung von szintillierenden optischen fasern und danach hergestellte fasern.
DE69500319D1 (de) Verfahren zum Herstellen von monomodalen optischen Fasern aus Fluoridglas
DE69304217D1 (de) Verfahren zum Herstellen einer Vorform für optische Fasern
DE69322212D1 (de) Form zum Herstellen von optischen Elementen und Verfahren zu ihrer Herstellung
DE69700520D1 (de) Verfahren zur Rückgewinnung von Helium in einem Verfahren zum Herstellen optischer Fasern
DE68904607D1 (de) Verfahren zum herstellen von glasvorformen fuer optische fasern.
DE69500934D1 (de) Verfahren zum Herstellen einer Vorform für optische Fasern
DE3866213D1 (de) Verfahren und vorrichtung zum herstellen von optischen fasern.
DE69601054D1 (de) Verfahren zum Sintern von Glasvorformen für die Herstellung von planären optischen Wellenleitern
DE69407378D1 (de) Verfahren zur Aushärtung von zweifach beschichteten optischen Fasern

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: OPTICAL TECHNOLOGIES CENTER S.R.L., TURIN/TORINO,

8339 Ceased/non-payment of the annual fee