ITTO950129A0 - Procedimento per la fabbricazione di fibre ottiche a mantenimento di polarizzazione - Google Patents

Procedimento per la fabbricazione di fibre ottiche a mantenimento di polarizzazione

Info

Publication number
ITTO950129A0
ITTO950129A0 ITTO950129A ITTO950129A ITTO950129A0 IT TO950129 A0 ITTO950129 A0 IT TO950129A0 IT TO950129 A ITTO950129 A IT TO950129A IT TO950129 A ITTO950129 A IT TO950129A IT TO950129 A0 ITTO950129 A0 IT TO950129A0
Authority
IT
Italy
Prior art keywords
polarization
procedure
manufacture
optic fibers
maintaining optic
Prior art date
Application number
ITTO950129A
Other languages
English (en)
Inventor
Giuseppe Cocito
Giorgio Grego
Original Assignee
Cselt Centro Studi Lab Telecom
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 Lab Telecom filed Critical Cselt Centro Studi Lab Telecom
Priority to IT95TO000129A priority Critical patent/IT1278383B1/it
Publication of ITTO950129A0 publication Critical patent/ITTO950129A0/it
Priority to DE69600121T priority patent/DE69600121T2/de
Priority to CA002170123A priority patent/CA2170123C/en
Priority to EP96102655A priority patent/EP0728708B1/en
Priority to DE0728708T priority patent/DE728708T1/de
Priority to JP8060257A priority patent/JPH0986950A/ja
Publication of ITTO950129A1 publication Critical patent/ITTO950129A1/it
Application granted granted Critical
Priority to US08/975,338 priority patent/US6209356B1/en
Publication of IT1278383B1 publication Critical patent/IT1278383B1/it

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
    • C03B37/10—Non-chemical treatment
    • C03B37/14—Re-forming fibres or filaments, i.e. changing their shape
    • C03B37/15—Re-forming fibres or filaments, i.e. changing their shape with heat application, e.g. for making optical fibres
    • 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
    • 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
    • C03B37/02709—Polarisation maintaining fibres, e.g. PM, PANDA, bi-refringent optical fibres
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2203/00—Fibre product details, e.g. structure, shape
    • C03B2203/10—Internal structure or shape details
    • C03B2203/12—Non-circular or non-elliptical cross-section, e.g. planar core
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2203/00—Fibre product details, e.g. structure, shape
    • C03B2203/30—Polarisation maintaining [PM], i.e. birefringent products, e.g. with elliptical core, by use of stress rods, "PANDA" type fibres
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2205/00—Fibre drawing or extruding details
    • C03B2205/20—Irradiation of the base fibre during drawing to modify waveguide properties

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)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
  • Surface Treatment Of Glass Fibres Or Filaments (AREA)
  • Polarising Elements (AREA)
  • Telephone Function (AREA)
IT95TO000129A 1995-02-23 1995-02-23 Procedimento per la fabbricazione di fibre ottiche a mantenimento di polarizzazione IT1278383B1 (it)

Priority Applications (7)

Application Number Priority Date Filing Date Title
IT95TO000129A IT1278383B1 (it) 1995-02-23 1995-02-23 Procedimento per la fabbricazione di fibre ottiche a mantenimento di polarizzazione
DE69600121T DE69600121T2 (de) 1995-02-23 1996-02-22 Verfahren zur Herstellung einer polarisationserhaltenden optischen Faser
CA002170123A CA2170123C (en) 1995-02-23 1996-02-22 Method for the fabrication of polarisation-maintaining optical fibres
EP96102655A EP0728708B1 (en) 1995-02-23 1996-02-22 Method for the fabrication of polarisation-maintaining optical fibres
DE0728708T DE728708T1 (de) 1995-02-23 1996-02-22 Verfahren zur Herstellung einer polarisationsstabilen optischen Faser
JP8060257A JPH0986950A (ja) 1995-02-23 1996-02-23 偏光保持光ファイバーの作製方法
US08/975,338 US6209356B1 (en) 1995-02-23 1997-11-20 Method of making polarization-maintaining optical fibers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT95TO000129A IT1278383B1 (it) 1995-02-23 1995-02-23 Procedimento per la fabbricazione di fibre ottiche a mantenimento di polarizzazione

Publications (3)

Publication Number Publication Date
ITTO950129A0 true ITTO950129A0 (it) 1995-02-23
ITTO950129A1 ITTO950129A1 (it) 1996-08-23
IT1278383B1 IT1278383B1 (it) 1997-11-20

Family

ID=11413248

Family Applications (1)

Application Number Title Priority Date Filing Date
IT95TO000129A IT1278383B1 (it) 1995-02-23 1995-02-23 Procedimento per la fabbricazione di fibre ottiche a mantenimento di polarizzazione

Country Status (6)

Country Link
US (1) US6209356B1 (it)
EP (1) EP0728708B1 (it)
JP (1) JPH0986950A (it)
CA (1) CA2170123C (it)
DE (2) DE728708T1 (it)
IT (1) IT1278383B1 (it)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20010035029A1 (en) * 1999-07-12 2001-11-01 Akira Ikushima Method of manufacturing an optical fiber
US6796148B1 (en) * 1999-09-30 2004-09-28 Corning Incorporated Deep UV laser internally induced densification in silica glasses
JP2003012348A (ja) * 2001-06-29 2003-01-15 Sumitomo Electric Ind Ltd 光導波路の製造方法
US6724963B2 (en) * 2001-12-17 2004-04-20 Ceramoptec Industries, Inc. Method and apparatus for manufacturing partially diffusing optical fibers
US20030121289A1 (en) * 2002-01-02 2003-07-03 Benda John A. Long period fiber Bragg gratings written with alternate side IR laser illumination
KR20080042404A (ko) * 2006-11-10 2008-05-15 광주과학기술원 광섬유 편광변환기
US8591777B2 (en) * 2008-12-15 2013-11-26 Ofs Fitel, Llc Method of controlling longitudinal properties of optical fiber

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4157253A (en) * 1978-06-23 1979-06-05 Rca Corporation Method of reducing absorption losses in fused quartz and fused silica optical fibers
US4372646A (en) * 1980-07-31 1983-02-08 Rockwell International Corporation Birefringent electromagnetic transmission line that preserves the state of polarized radiation propagating therein
JPS60204641A (ja) * 1984-03-30 1985-10-16 Sumitomo Electric Ind Ltd 光フアイバ心線の製造方法
JPH0629156B2 (ja) * 1985-10-09 1994-04-20 住友電気工業株式会社 光フアイバの製造方法
US5478371A (en) * 1992-05-05 1995-12-26 At&T Corp. Method for producing photoinduced bragg gratings by irradiating a hydrogenated glass body in a heated state
US5363239A (en) * 1992-12-23 1994-11-08 At&T Bell Laboratories Method for forming spatially-varying distributed Bragg reflectors in optical media
US5400422A (en) * 1993-01-21 1995-03-21 The United States Of America As Represented By The Secretary Of The Navy Technique to prepare high-reflectance optical fiber bragg gratings with single exposure in-line or fiber draw tower
GB2275347A (en) * 1993-02-19 1994-08-24 Univ Southampton Optical waveguide grating formed by transverse optical exposure
US5559907A (en) * 1994-02-17 1996-09-24 Lucent Technologies Inc. Method of controlling polarization properties of a photo-induced device in an optical waveguide and method of investigating structure of an optical waveguide

Also Published As

Publication number Publication date
EP0728708A3 (en) 1997-03-26
US6209356B1 (en) 2001-04-03
DE728708T1 (de) 1997-09-25
CA2170123A1 (en) 1996-08-24
DE69600121D1 (de) 1998-01-29
EP0728708A2 (en) 1996-08-28
EP0728708B1 (en) 1997-12-17
CA2170123C (en) 1999-12-07
ITTO950129A1 (it) 1996-08-23
IT1278383B1 (it) 1997-11-20
JPH0986950A (ja) 1997-03-31
DE69600121T2 (de) 1998-05-07

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19990125