WO2003022768A3 - Glasfaser mit mindestens zwei glasmänteln - Google Patents

Glasfaser mit mindestens zwei glasmänteln Download PDF

Info

Publication number
WO2003022768A3
WO2003022768A3 PCT/EP2002/010058 EP0210058W WO03022768A3 WO 2003022768 A3 WO2003022768 A3 WO 2003022768A3 EP 0210058 W EP0210058 W EP 0210058W WO 03022768 A3 WO03022768 A3 WO 03022768A3
Authority
WO
WIPO (PCT)
Prior art keywords
glass
layers
fibre
glass fibre
core
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.)
Ceased
Application number
PCT/EP2002/010058
Other languages
English (en)
French (fr)
Other versions
WO2003022768A2 (de
Inventor
Ulrich Peuchert
Ruediger Sprengard
Martin Letz
Frank Buellesfeld
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.)
Schott AG
Carl Zeiss AG
Original Assignee
Carl Zeiss AG
Schott Glaswerke AG
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
Priority claimed from DE2001144475 external-priority patent/DE10144475B4/de
Priority claimed from DE2002111247 external-priority patent/DE10211247A1/de
Application filed by Carl Zeiss AG, Schott Glaswerke AG filed Critical Carl Zeiss AG
Priority to US10/489,020 priority Critical patent/US7515802B2/en
Priority to AU2002342664A priority patent/AU2002342664A1/en
Priority to EP02779323A priority patent/EP1427677A2/de
Priority to JP2003526848A priority patent/JP2005503008A/ja
Publication of WO2003022768A2 publication Critical patent/WO2003022768A2/de
Publication of WO2003022768A3 publication Critical patent/WO2003022768A3/de
Anticipated expiration legal-status Critical
Ceased 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
    • C03B37/01265—Manufacture of preforms for drawing fibres or filaments starting entirely or partially from molten glass, e.g. by dipping a preform in a melt
    • C03B37/01274—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 extrusion or 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
    • C03B37/01—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
    • C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
    • C03B37/022—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from molten glass in which the resultant product consists of different sorts of glass or is characterised by shape, e.g. hollow fibres, undulated fibres, fibres presenting a rough surface
    • C03B37/023—Fibres composed of different sorts of glass, e.g. glass optical fibres, made by the double crucible technique
    • 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
    • C03C13/00—Fibre or filament compositions
    • C03C13/04—Fibre optics, e.g. core and clad fibre compositions
    • C03C13/045—Silica-containing oxide glass compositions
    • C03C13/046—Multicomponent glass compositions
    • 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
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/062—Glass compositions containing silica with less than 40% silica by weight
    • C03C3/064—Glass compositions containing silica with less than 40% silica by weight containing boron
    • C03C3/068—Glass compositions containing silica with less than 40% silica by weight containing boron containing rare earths
    • 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
    • C03C3/00—Glass compositions
    • C03C3/12—Silica-free oxide glass compositions
    • C03C3/253—Silica-free oxide glass compositions containing 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
    • C03B2201/08—Doped silica-based glasses doped with boron or fluorine or other refractive index decreasing dopant
    • C03B2201/10—Doped silica-based glasses doped with boron or fluorine or other refractive index decreasing dopant doped with boron
    • 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
    • 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
    • C03B2201/32—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi doped with aluminium
    • 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
    • C03B2201/34—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi doped with rare earth metals, i.e. with Sc, Y or lanthanides, e.g. for laser-amplifiers
    • C03B2201/36—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi doped with rare earth metals, i.e. with Sc, Y or lanthanides, e.g. for laser-amplifiers doped with rare earth metals and aluminium, e.g. Er-Al co-doped
    • 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
    • C03B2203/22—Radial profile of refractive index, composition or softening point
    • C03B2203/23—Double or multiple optical cladding profiles
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/02—Optical fibres with cladding with or without a coating
    • G02B6/036—Optical fibres with cladding with or without a coating core or cladding comprising multiple layers
    • G02B6/03616—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference
    • G02B6/03622—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference having 2 layers only
    • G02B6/03627—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference having 2 layers only arranged - +
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/02—Optical fibres with cladding with or without a coating
    • G02B6/036—Optical fibres with cladding with or without a coating core or cladding comprising multiple layers
    • G02B6/03616—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference
    • G02B6/03638—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference having 3 layers only
    • G02B6/0365—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference having 3 layers only arranged - - +

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Glass Compositions (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
  • Lasers (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)
  • Laminated Bodies (AREA)

Abstract

Die vorliegende Erfindung betrifft eine Glasfaser, welche einen Kern umfasst, dessen Matrixglas mindestens ein Schwermetalloxid und mindestens eine Seltene Erden-Verbindung enthält, wobei der Kern von mindestens zwei Glasmänteln umgeben ist. Ferner betrifft die vorliegende Erfindung ein Verfahren zur Herstellung einer erfindungsgemässen Glasfaser, einen optischen Verstärker, welcher mindestens eine erfindungsgemässe Glasfaser umfasst, sowie die Verwendung der erfindungsgemässen Glasfaser.
PCT/EP2002/010058 2001-09-10 2002-09-07 Glasfaser mit mindestens zwei glasmänteln Ceased WO2003022768A2 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US10/489,020 US7515802B2 (en) 2001-09-10 2002-09-07 Glass fibre with at least two glass layers
AU2002342664A AU2002342664A1 (en) 2001-09-10 2002-09-07 Glass fibre with at least two glass layers
EP02779323A EP1427677A2 (de) 2001-09-10 2002-09-07 Glasfaser mit mindestens zwei glasmänteln
JP2003526848A JP2005503008A (ja) 2001-09-10 2002-09-07 少なくとも2層のガラスクラッドを有するガラスファイバ

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE2001144475 DE10144475B4 (de) 2001-09-10 2001-09-10 Glasfaser mit mindestens zwei Glasmänteln, Verfahren zu ihrer Herstellung sowie ihre Verwendung
DE10144475.3 2001-09-10
DE10211247.9 2002-03-13
DE2002111247 DE10211247A1 (de) 2002-03-13 2002-03-13 Glasfaser mit mindestens zwei Glasmänteln

Publications (2)

Publication Number Publication Date
WO2003022768A2 WO2003022768A2 (de) 2003-03-20
WO2003022768A3 true WO2003022768A3 (de) 2003-11-27

Family

ID=26010103

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2002/010058 Ceased WO2003022768A2 (de) 2001-09-10 2002-09-07 Glasfaser mit mindestens zwei glasmänteln

Country Status (6)

Country Link
US (2) US7515802B2 (de)
EP (1) EP1427677A2 (de)
JP (2) JP2005503008A (de)
CN (1) CN1275891C (de)
AU (1) AU2002342664A1 (de)
WO (1) WO2003022768A2 (de)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4930897B2 (ja) * 2005-03-09 2012-05-16 日本電気硝子株式会社 Bi2O3−B2O3系封着材料
TWI316928B (en) * 2005-04-28 2009-11-11 Ohara Kk Optical glass
RU2302066C1 (ru) * 2005-09-22 2007-06-27 Научный центр волоконной оптики при Институте общей физики им. А.М. Прохорова Российской академии наук Волоконный световод для оптического усиления излучения на длине волны в диапазоне 1000-1700 нм, способы его изготовления и волоконный лазер
JP2007149766A (ja) * 2005-11-24 2007-06-14 Kyoto Univ フォトニックバンドギャップファイバ
US7724424B2 (en) * 2006-04-21 2010-05-25 Sumitomo Electric Industries, Ltd. Optical module and optical amplification module
JP4784406B2 (ja) 2006-06-13 2011-10-05 住友電気工業株式会社 ファイバレーザ装置およびレーザ加工方法
JP4411424B2 (ja) 2006-10-23 2010-02-10 株式会社住田光学ガラス 高屈折率の精密プレス成形用光学ガラス
JP2008171985A (ja) * 2007-01-11 2008-07-24 Fujikura Ltd 残留光除去用ファイバ、これを用いた残留光除去構造及び光増幅器並びにファイバレーザ
US7437046B2 (en) * 2007-02-12 2008-10-14 Furukawa Electric North America, Inc. Optical fiber configuration for dissipating stray light
JP5259096B2 (ja) * 2007-02-13 2013-08-07 浜松ホトニクス株式会社 ファイバオプティック及びその製造方法
JP5109443B2 (ja) * 2007-03-29 2012-12-26 住友電気工業株式会社 光学モジュールおよび加工方法
JP5227044B2 (ja) * 2008-02-14 2013-07-03 日本電信電話株式会社 希土類添加フツリン酸ファイバ
JP5330729B2 (ja) * 2008-04-16 2013-10-30 三菱電線工業株式会社 グレーデッドインデックス形マルチモード光ファイバ
EP2354103B1 (de) * 2008-11-06 2016-08-10 Asahi Glass Company, Limited Lichtverstärkendes glas
WO2010082656A1 (ja) 2009-01-19 2010-07-22 住友電気工業株式会社 マルチコア光ファイバ
DK2209029T3 (en) 2009-01-19 2015-04-13 Sumitomo Electric Industries optical fiber
DK2209031T3 (da) * 2009-01-20 2020-04-06 Sumitomo Electric Industries Anordningsomformer
CN102161569B (zh) * 2010-12-28 2012-09-19 南昌航空大学 一种草甘膦生产设备的强防腐性能搪玻璃釉料的配方及其制备方法
CN102147496A (zh) * 2011-03-23 2011-08-10 华中科技大学 一种空间用抗电离辐照有源光纤
KR20140025481A (ko) * 2011-04-21 2014-03-04 쇼오트 아게 고굴절율 광학 유리
DE102012100233B4 (de) * 2012-01-12 2014-05-15 Schott Ag Hochtransmittive Gläser mit hoher Solarisationsbeständigkeit, ihre Verwendung und Verfahren zu ihrer Herstellung
TWI477833B (zh) * 2012-09-14 2015-03-21 Univ Nat Taiwan Double fiber crystal fiber and its making method
WO2016176096A1 (en) * 2015-04-30 2016-11-03 Corning Incorporated Electrically conductive articles with discrete metallic silver layers and methods for making same
JP2017098296A (ja) * 2015-11-18 2017-06-01 Kddi株式会社 光増幅装置
EP3887328A2 (de) 2018-11-26 2021-10-06 Owens Corning Intellectual Capital, LLC Hochleistungsglasfaserzusammensetzung mit verbessertem spezifischen modul
KR102752872B1 (ko) 2018-11-26 2025-01-09 오웬스 코닝 인텔렉츄얼 캐피탈 엘엘씨 향상된 탄성 계수를 갖는 고성능 섬유 유리 조성물
CN112711092B (zh) * 2021-01-15 2022-10-11 中天科技精密材料有限公司 多模光纤
JP2022157232A (ja) * 2021-03-31 2022-10-14 日東電工株式会社 光ファイバおよび光伝送システム

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5278850A (en) * 1990-05-16 1994-01-11 British Telecommunications Wave-guiding structure with lasing properties
US5305414A (en) * 1992-08-03 1994-04-19 The United States Of America As Represented By The Secretary Of The Navy Low loss glass and optical fibers therefrom

Family Cites Families (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3209641A (en) * 1960-02-15 1965-10-05 American Optical Corp Infra-red transmitting fibers formed of arsenic and sulphur
US3395006A (en) * 1963-10-30 1968-07-30 American Optical Corp Apparatus for making fiber energyconducting devices
NL7603832A (nl) * 1976-04-12 1977-10-14 Philips Nv Glassamenstellingen.
US4289516A (en) * 1979-10-04 1981-09-15 Eotec Corporation Low loss optical fibers
JPS57202504A (en) * 1981-06-08 1982-12-11 Fuji Photo Optical Co Ltd Manufacture of flexible bundle of optical fiber
NL8103089A (nl) * 1981-06-26 1983-01-17 Philips Nv Optische vezel van het graded index type en werkwijze voor de vervaardiging daarvan.
IT1179876B (it) * 1984-12-18 1987-09-16 Cselt Centro Studi Lab Telecom Apparecchiatura per la produzione continua di fibre ottiche
JPS63121807A (ja) 1986-11-11 1988-05-25 Sumitomo Electric Ind Ltd 光フアイバ
JPS63236728A (ja) 1987-03-24 1988-10-03 Hisankabutsu Glass Kenkyu Kaihatsu Kk コア−クラツド構造を有するカルコゲナイドガラスフアイバ−の製造方法
US5037181A (en) * 1988-04-25 1991-08-06 The Board Of Trustees Of The Leland Stanford Junior University Claddings for single crystal optical fibers and devices and methods and apparatus for making such claddings
JPH0561079A (ja) 1991-08-29 1993-03-12 Sumitomo Electric Ind Ltd 光フイルタ
US5237576A (en) 1992-05-05 1993-08-17 At&T Bell Laboratories Article comprising an optical fiber laser
US5251062A (en) * 1992-10-15 1993-10-05 Bell Communications Research, Inc. Tellurite glass and fiber amplifier
BE1007071A3 (nl) * 1993-04-28 1995-03-07 Philips Electronics Nv Optische versterker.
JPH06342175A (ja) 1993-06-01 1994-12-13 Nippon Telegr & Teleph Corp <Ntt> 増幅用光ファイバ
JPH0715059A (ja) 1993-06-28 1995-01-17 Nippon Telegr & Teleph Corp <Ntt> 光増幅器用ファイバ
JPH07128558A (ja) 1993-11-04 1995-05-19 Showa Electric Wire & Cable Co Ltd 光ファイバ製造方法
US5530709A (en) * 1994-09-06 1996-06-25 Sdl, Inc. Double-clad upconversion fiber laser
JP3301275B2 (ja) * 1994-09-27 2002-07-15 日本電信電話株式会社 光ファイバ増幅器
ES2159656T3 (es) * 1995-04-19 2001-10-16 Corning Inc Procedimiento y dispositivo para fabricar una barra de un material que tiene un gradiente de variacion de composicion en seccion transversal.
DE69630426T2 (de) * 1995-08-31 2004-08-19 Sumitomo Electric Industries, Ltd. Dispersionskompensierende Faser und Verfahren zu ihrer Herstellung
US5627848A (en) * 1995-09-05 1997-05-06 Imra America, Inc. Apparatus for producing femtosecond and picosecond pulses from modelocked fiber lasers cladding pumped with broad area diode laser arrays
US5703978A (en) 1995-10-04 1997-12-30 Lucent Technologies Inc. Temperature insensitive long-period fiber grating devices
JP2960674B2 (ja) 1996-01-26 1999-10-12 三菱電線工業株式会社 増幅用光ファイバ
JP3369389B2 (ja) * 1996-02-08 2003-01-20 住友電気工業株式会社 分散シフト光ファイバ
US5802236A (en) * 1997-02-14 1998-09-01 Lucent Technologies Inc. Article comprising a micro-structured optical fiber, and method of making such fiber
KR100235958B1 (ko) * 1996-08-21 1999-12-15 김영환 반도체 메모리 장치의 복수 레벨 전압 발생기
KR100234701B1 (ko) * 1996-12-05 1999-12-15 김영환 외부전압에 둔감한 백바이어스전압 레벨 감지기
US6205281B1 (en) * 1997-05-27 2001-03-20 Corning Incorporated Fluorinated rare earth doped glass and glass-ceramic articles
JPH10339819A (ja) 1997-06-05 1998-12-22 Furukawa Electric Co Ltd:The 光増幅用光ファイバ
US6131415A (en) * 1997-06-20 2000-10-17 Lucent Technologies Inc. Method of making a fiber having low loss at 1385 nm by cladding a VAD preform with a D/d<7.5
US5937134A (en) * 1997-08-07 1999-08-10 Lucent Technologies Inc. Cladding pumped fiber lasers
KR100259349B1 (ko) * 1997-12-27 2000-06-15 김영환 백바이어스 전압레벨 검출기
JPH11274613A (ja) 1998-03-19 1999-10-08 Kdd Corp 光ファイバ
CA2327297A1 (en) 1998-04-08 1999-10-14 Corning Incorporated Antimony oxide glass with optical activity
US6620748B1 (en) 1998-10-20 2003-09-16 Asahi Glass Co Ltd Light-amplifying glass, light-amplifying medium and resin-coated light-amplifying medium
JP3916796B2 (ja) 1999-03-24 2007-05-23 日本電信電話株式会社 光増幅用テルライトガラス、該ガラスを用いた光ファイバ、光増幅器およびレーザ装置
FR2793241B1 (fr) 1999-05-06 2002-03-08 Corning Inc Composition de verre borate dope a l erbium
WO2001007943A1 (fr) * 1999-07-27 2001-02-01 Fujikura Ltd. Fibre optique a dispersion decalee
JP2001185789A (ja) 1999-10-14 2001-07-06 Asahi Glass Co Ltd 光増幅媒体、樹脂コート光増幅媒体、光増幅器およびレーザー装置
US6297179B1 (en) * 1999-10-18 2001-10-02 Corning Incorporated Transition-metal, glass-ceramic gain media
JP2001139338A (ja) 1999-11-12 2001-05-22 Mitsubishi Cable Ind Ltd 光ファイバ母材の製造方法
CN1421061A (zh) 1999-12-16 2003-05-28 康宁股份有限公司 光增益光纤
JP4240721B2 (ja) 2000-01-26 2009-03-18 旭硝子株式会社 光増幅ガラスおよびその製造方法
US6711918B1 (en) * 2001-02-06 2004-03-30 Sandia National Laboratories Method of bundling rods so as to form an optical fiber preform
CA2443127A1 (en) * 2001-04-12 2002-10-24 Wesley King High index-contrast fiber waveguides and applications

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5278850A (en) * 1990-05-16 1994-01-11 British Telecommunications Wave-guiding structure with lasing properties
US5305414A (en) * 1992-08-03 1994-04-19 The United States Of America As Represented By The Secretary Of The Navy Low loss glass and optical fibers therefrom

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JOHN H. DUFFUS: "Heavy metals - a meaningless term", CHEMISTRY INTERNATIONAL (IUPAC), vol. 23, no. 6, November 2001 (2001-11-01), XP002226982, Retrieved from the Internet <URL:http://www.iupac.org/publications/ci/2001/november/heavymetals.html> [retrieved on 20030113] *

Also Published As

Publication number Publication date
CN1553883A (zh) 2004-12-08
US20090158778A1 (en) 2009-06-25
WO2003022768A2 (de) 2003-03-20
US20040252961A1 (en) 2004-12-16
CN1275891C (zh) 2006-09-20
JP2005503008A (ja) 2005-01-27
EP1427677A2 (de) 2004-06-16
US7515802B2 (en) 2009-04-07
AU2002342664A1 (en) 2003-03-24
JP2007129243A (ja) 2007-05-24

Similar Documents

Publication Publication Date Title
WO2005021455A3 (en) Optical fiber containing an alkali metal oxide and methods and apparatus for manufacturing same
AU2001293232A1 (en) Methods employing fluorescence quenching by metal surfaces
AU2003211255A1 (en) Method of manufacturing glass panel, and glass panel manufactured by the method
AU2003235180A1 (en) Optical fiber preform producing method, optical fiber producing method, and optical fiber
AU2002342664A1 (en) Glass fibre with at least two glass layers
WO2001061803A3 (en) Codopant polymers for efficient optical amplification
AU2002339505A1 (en) Method for the production of glasses containing bismuth oxide
AU2001260151A1 (en) Composite profile and method for producing a composite profile
AU2001270165A1 (en) Refractive index grating manufacturing process
AU2001280270A1 (en) Method of manufacturing structural members and the members provided by such method
WO2006138117A3 (en) High sbs threshold optical fiber
GB0119636D0 (en) a method of manufacturing a fibre reinforced metal component
AU2003280978A1 (en) Glass, optical waveguide manufacturing method, and optical waveguide
WO2003002521A3 (fr) Procede de preparation de composes type azoique
WO2002096799A3 (de) Siliciumsubnitrid, ein verfahren zur dessen hestellung und die verwendung des subnitrids
AU2001282013A1 (en) Improved method for the production of polytetrahydrofuran with low colour index
AU2002258028A1 (en) Waveguide structure with asymmetrical grating and method for production thereof
AU2001296980A1 (en) Method of manufacturing an optical fiber preform
AU2002332223A1 (en) Method of manufacturing a composite stone-glass panel, and panel obtained by such method
WO2003053873A3 (de) Phasenseparierte gläser
WO2002074953A3 (de) Genbibliothek und verfahren zu deren herstellung
AU2002348317A1 (en) A method for manufacturing silicate waveguide compositions for extended l-band and s-band amplification
WO2004015163A3 (de) Verfahren zur herstellung einer keramikfaser mit einer metallbeschichtung
AU2002318065A1 (en) Building block provided with an attachment layer as well as a method for the manufacture of a building block
AU2002225060A1 (en) Method for the manufacture of a metal matrix composite, and a metal matrix composite

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BY BZ CA CH CN CO CR CU CZ DE DM DZ EC EE ES FI GB GD GE GH HR HU ID IL IN IS JP KE KG KP KR LC LK LR LS LT LU LV MA MD MG MN MW MX MZ NO NZ PL PT RO RU SE SG SI SK SL TJ TM TR TT TZ UA US UZ VC VN YU ZA

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): GH GM KE LS MW MZ SD SL SZ UG ZM ZW AM AZ BY KG KZ RU TJ TM AT BE BG CH CY CZ DK EE ES FI FR GB GR IE IT LU MC PT SE SK TR BF BJ CF CG CI GA GN GQ GW ML MR NE SN TD TG US

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
WWE Wipo information: entry into national phase

Ref document number: 2003526848

Country of ref document: JP

WWE Wipo information: entry into national phase

Ref document number: 20028176812

Country of ref document: CN

WWE Wipo information: entry into national phase

Ref document number: 2002779323

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 2002779323

Country of ref document: EP

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

WWE Wipo information: entry into national phase

Ref document number: 10489020

Country of ref document: US