DE69621779T2 - Faser zur verminderung von polarisationseffekten in verstärkern - Google Patents

Faser zur verminderung von polarisationseffekten in verstärkern

Info

Publication number
DE69621779T2
DE69621779T2 DE69621779T DE69621779T DE69621779T2 DE 69621779 T2 DE69621779 T2 DE 69621779T2 DE 69621779 T DE69621779 T DE 69621779T DE 69621779 T DE69621779 T DE 69621779T DE 69621779 T2 DE69621779 T2 DE 69621779T2
Authority
DE
Germany
Prior art keywords
amplifiers
fiber
polarization effects
reducing polarization
reducing
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
DE69621779T
Other languages
English (en)
Other versions
DE69621779D1 (de
Inventor
F Evans
A Nolan
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.)
Corning Inc
Original Assignee
Corning Inc
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 Corning Inc filed Critical Corning Inc
Publication of DE69621779D1 publication Critical patent/DE69621779D1/de
Application granted granted Critical
Publication of DE69621779T2 publication Critical patent/DE69621779T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/10Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
    • G02B6/105Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type having optical polarisation effects
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B37/00Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
    • C03B37/01Manufacture of glass fibres or filaments
    • C03B37/02Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
    • C03B37/025Manufacture 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
    • C03B37/027Fibres composed of different sorts of glass, e.g. glass optical fibres
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B37/00Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
    • C03B37/01Manufacture of glass fibres or filaments
    • C03B37/02Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
    • C03B37/025Manufacture 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
    • C03B37/027Fibres composed of different sorts of glass, e.g. glass optical fibres
    • C03B37/02745Fibres having rotational spin around the central longitudinal axis, e.g. alternating +/- spin to reduce polarisation mode dispersion
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B37/00Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
    • C03B37/01Manufacture of glass fibres or filaments
    • C03B37/02Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
    • C03B37/03Drawing means, e.g. drawing drums ; Traction or tensioning devices
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B37/00Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
    • C03B37/01Manufacture of glass fibres or filaments
    • C03B37/02Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
    • C03B37/03Drawing means, e.g. drawing drums ; Traction or tensioning devices
    • C03B37/032Drawing means, e.g. drawing drums ; Traction or tensioning devices for glass optical fibres
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL 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
    • C03C25/00Surface treatment of fibres or filaments made from glass, minerals or slags
    • C03C25/10Coating
    • C03C25/104Coating to obtain optical fibres
    • C03C25/106Single coatings
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/05Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
    • H01S3/06Construction or shape of active medium
    • H01S3/063Waveguide lasers, i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
    • H01S3/067Fibre lasers
    • H01S3/06708Constructional details of the fibre, e.g. compositions, cross-section, shape or tapering
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2201/00Type of glass produced
    • C03B2201/06Doped silica-based glasses
    • C03B2201/30Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi
    • C03B2201/34Doped 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
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2203/00Fibre product details, e.g. structure, shape
    • C03B2203/10Internal structure or shape details
    • C03B2203/22Radial profile of refractive index, composition or softening point
    • C03B2203/24Single mode [SM or monomode]
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2203/00Fibre product details, e.g. structure, shape
    • C03B2203/36Dispersion modified fibres, e.g. wavelength or polarisation shifted, flattened or compensating fibres (DSF, DFF, DCF)
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2205/00Fibre drawing or extruding details
    • C03B2205/06Rotating the fibre fibre about its longitudinal axis

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Optics & Photonics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Dispersion Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
  • Lasers (AREA)
  • Glass Compositions (AREA)
DE69621779T 1995-12-20 1996-12-11 Faser zur verminderung von polarisationseffekten in verstärkern Expired - Fee Related DE69621779T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/575,495 US5704960A (en) 1995-12-20 1995-12-20 Method of forming an optical fiber for reduced polarization effects in amplifiers
PCT/US1996/019813 WO1997022897A1 (en) 1995-12-20 1996-12-11 Fiber for reduced polarization effects in amplifiers

Publications (2)

Publication Number Publication Date
DE69621779D1 DE69621779D1 (de) 2002-07-18
DE69621779T2 true DE69621779T2 (de) 2003-01-02

Family

ID=24300546

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69621779T Expired - Fee Related DE69621779T2 (de) 1995-12-20 1996-12-11 Faser zur verminderung von polarisationseffekten in verstärkern

Country Status (9)

Country Link
US (2) US5704960A (de)
EP (1) EP0811176B1 (de)
JP (1) JPH11501133A (de)
KR (1) KR19980702330A (de)
CN (1) CN1176005A (de)
AU (1) AU705950B2 (de)
CA (1) CA2210470A1 (de)
DE (1) DE69621779T2 (de)
WO (1) WO1997022897A1 (de)

Families Citing this family (56)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5778016A (en) 1994-04-01 1998-07-07 Imra America, Inc. Scanning temporal ultrafast delay methods and apparatuses therefor
WO1997007067A1 (en) * 1995-08-16 1997-02-27 Plasma Optical Fibre B.V. Optical fiber with low polarisation mode dispersion
US5704960A (en) * 1995-12-20 1998-01-06 Corning, Inc. Method of forming an optical fiber for reduced polarization effects in amplifiers
WO1997026221A1 (en) * 1996-01-22 1997-07-24 Corning Incorporated Optical fiberof modulated spin for reduced polarisation mode dispersion as well as process and apparatus for its manufacture
US6324872B1 (en) 1996-04-12 2001-12-04 Corning Incorporated Method and apparatus for introducing controlled spin in optical fibers
CA2267913A1 (en) * 1996-10-07 1998-04-16 Corning Incorporated Sensor apparatus with polarization maintaining fibers
US6839473B2 (en) * 1997-06-16 2005-01-04 Novera Optics, Inc. Optical fiber cladding with low polarization dependence and an acousto-optic tunable filter with low polarization dependent loss achieved through thermal annealing
US6922495B2 (en) * 1997-06-16 2005-07-26 Novera Optics, Inc. Optical fiber cladding with low polarization-dependent coupling
DE19810812A1 (de) * 1998-03-12 1999-09-16 Siemens Ag Optisches Übertragungselement sowie Verfahren zur Reduzierung dessen Polarisationsmoden-Dispersion
AU757117B2 (en) * 1998-06-24 2003-02-06 Pirelli Cavi E Sistemi S.P.A. Method and apparatus for twisting a coated optical fiber during drawing from a preform
KR20010071612A (ko) 1998-06-24 2001-07-28 지아네시 피에르 지오반니 원석으로부터 광섬유를 제조하기 위한 장치 및 방법
DE19841068A1 (de) * 1998-09-09 2000-03-16 Deutsche Telekom Ag Optische Verbindungsstrecke
US6891622B2 (en) 1999-02-11 2005-05-10 Kvh Industries, Inc. Current sensor
JP4718017B2 (ja) * 1999-04-26 2011-07-06 コーニング インコーポレイテッド 光ファイバ、ならびに低偏光モード分散および低減衰損失の光ファイバの製造方法
JP4076702B2 (ja) 1999-05-14 2008-04-16 株式会社フジクラ 光ファイバの捻れ測定方法
EP1297371B1 (de) * 2000-07-06 2006-09-13 Prysmian Cavi e Sistemi Energia S.r.l. Optische faser mit geringer polarisationsmodendispersion und zugehöriges herstellungsverfahren
WO2002010813A2 (en) * 2000-08-02 2002-02-07 Kvh Industries, Inc. Reduction of linear birefringence in circular-core single-mode fiber
WO2002053117A2 (en) * 2000-12-28 2002-07-11 Pirelli S.P.A. Method for producing an optical fibre telecommunications cable with reduced polarization mode dispersion
WO2002063354A1 (fr) * 2001-01-30 2002-08-15 Sumitomo Electric Industries, Ltd. Procede et dispositif de fabrication de fibre optique
US6724528B2 (en) * 2001-02-27 2004-04-20 The United States Of America As Represented By The Secretary Of The Navy Polarization-maintaining optical fiber amplifier employing externally applied stress-induced birefringence
DE60227356D1 (de) * 2001-03-14 2008-08-14 Chiral Photonics Inc Chirales faser-bragg-gitter
US20020172461A1 (en) * 2001-03-14 2002-11-21 Jonathan Singer Apparatus and method for fabricating chiral fiber gratings
KR100414691B1 (ko) * 2001-07-19 2004-01-13 엘지전선 주식회사 낮은 편광 모드 분산을 지닌 뒤틀린 광섬유의 제조 장치
US6825974B2 (en) * 2001-11-06 2004-11-30 Sandia National Laboratories Linearly polarized fiber amplifier
KR100417000B1 (ko) * 2001-12-03 2004-02-05 삼성전자주식회사 저 편광 모드 분산을 위한 장치
US6735985B2 (en) * 2001-12-20 2004-05-18 Furukawa Electric North America Inc Method of impressing a twist on a multimode fiber during drawing
KR100416970B1 (ko) * 2002-01-17 2004-02-05 삼성전자주식회사 인출된 광섬유의 저 편광모드분산을 위한 스핀 장치
US7010195B2 (en) 2002-03-15 2006-03-07 Fitel Usa Corp. Fiber optic grating with tunable polarization dependent loss
US20040062515A1 (en) * 2002-09-26 2004-04-01 Garner Harry Douglas Apparatuses and methods for imparting mechanical twist in optical fibers
US7035525B2 (en) * 2002-09-26 2006-04-25 Fitel Usa Corp. Methods and apparatuses for correcting mechanical twist in optical fiber
KR100520646B1 (ko) * 2002-10-02 2005-10-13 삼성전자주식회사 꼬임 진폭 비대칭 제어를 이용한 광섬유 인출 방법
KR100498925B1 (ko) * 2002-10-23 2005-07-04 삼성전자주식회사 스핀 진폭 변조를 이용한 광섬유 인출 방법
US6778715B2 (en) * 2002-11-06 2004-08-17 Fitel U.S.A. Corp. Optical fiber-based device with tunable birefringence
US7891216B2 (en) * 2002-12-30 2011-02-22 Prysmian Cavi E Sistemi Energia S.R.L. Method for producing an optical fiber having low polarization mode dispersion
US7861556B2 (en) * 2003-02-28 2011-01-04 Corning Incorporated Method and apparatus for impulsively spinning optical fiber
US6876804B2 (en) * 2003-03-20 2005-04-05 Corning Incorporated Method of making a spun optical fiber with low polarization mode dispersion
KR100547755B1 (ko) * 2003-05-24 2006-01-31 삼성전자주식회사 스핀을 이용한 광섬유 제조 장치 및 방법
US6993229B2 (en) * 2003-09-30 2006-01-31 Corning Incorporated Method of making spun optical fiber with low PMD
EP1706766B1 (de) * 2003-12-30 2009-04-22 Prysmian S.p.A. Optische faserverbindung mit niedriger polarisationsmodendispersion (pmd) und herstellungsverfahren dafür
KR100566218B1 (ko) * 2004-03-02 2006-03-29 삼성전자주식회사 광섬유 인출을 위한 장치 및 방법
WO2005100274A1 (ja) * 2004-04-07 2005-10-27 Fujikura Ltd. 光ファイバの製造方法、光ファイバ
RU2369604C2 (ru) 2004-04-13 2009-10-10 Инсайт Корпорейшн Производные пиперазинилпиперидина в качестве антагонистов хемокинового рецептора
US7317855B2 (en) * 2004-12-16 2008-01-08 Corning Incorporated Method of imparting twist to optical fiber
JP2007272060A (ja) * 2006-03-31 2007-10-18 Furukawa Electric Co Ltd:The 光ファイバリボン芯線及び光ファイバケーブル
CN101512404B (zh) * 2007-08-22 2012-10-10 古河电气工业株式会社 光纤带状芯线
WO2009107667A1 (ja) * 2008-02-28 2009-09-03 住友電気工業株式会社 光ファイバ
DK2341377T3 (da) * 2008-10-20 2017-11-13 Sumitomo Electric Industries Fremgangsmåde til fremstilling af optisk fiber
DK2370442T5 (da) 2008-11-26 2013-09-23 Pfizer 3-aminocyclopentancarboxamider som chemokinreceptor modulatorer
US8923678B2 (en) * 2009-12-02 2014-12-30 Ofs Fitel, Llc Techniques for manipulating crosstalk in multicore fibers
US20110265520A1 (en) * 2010-04-28 2011-11-03 Xin Chen Methods For Determining The Rotational Characteristics Of An Optical Fiber
KR101218312B1 (ko) * 2010-07-22 2013-01-02 한국광기술원 자이로 센서용 광섬유 코일, 그 제작 장치 및 이를 이용한 자이로 센서
FR2967155B1 (fr) * 2010-11-08 2017-12-15 Delachaux Sa Dispositif de guidage de fibre optique ameliore
JP5948136B2 (ja) * 2011-05-27 2016-07-06 株式会社フジクラ 光ファイバおよびその製造方法
KR101968846B1 (ko) * 2017-11-29 2019-04-12 한국광기술원 수모드 광섬유를 이용한 소형 무편광기
BR112022015066A2 (pt) * 2020-01-29 2022-11-08 Ampliconyx Oy Fibra óptica ativa com birrefringência baixa
CN114180823B (zh) * 2022-02-14 2022-05-20 武汉长进激光技术有限公司 抗辐照超宽带L-band掺铒光纤及其制备方法和应用

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3912478A (en) * 1974-06-17 1975-10-14 Bell Telephone Labor Inc Methods of introducing geometrical variations in optical fibers
US4038062A (en) * 1976-03-25 1977-07-26 Bell Telephone Laboratories, Incorporated Method and apparatus for introducing geometrical perturbations in optical fiber waveguides
US4291940A (en) * 1977-06-13 1981-09-29 Canadian Patents & Development Ltd. Low loss access coupler for multimode optical fiber distribution systems
US4274854A (en) * 1978-01-13 1981-06-23 Bell Telephone Laboratories, Incorporated Polarization-preserving optical fiber
US4308045A (en) * 1978-03-10 1981-12-29 Bell Telephone Laboratories, Incorporated Method for fabricating optical fibers with enhanced mode coupling
US4184859A (en) * 1978-06-09 1980-01-22 International Telephone And Telegraph Corporation Method of fabricating an elliptical core single mode fiber
US4426129A (en) * 1980-01-11 1984-01-17 Hitachi, Ltd. Optical fiber and method of producing the same
EP0067017B1 (de) * 1981-05-29 1987-03-04 Hitachi, Ltd. Die Polarisationsebene beibehaltende optische Faser und Verfahren zu ihrer Herstellung
GB2101762B (en) * 1981-07-07 1984-11-28 Central Electr Generat Board Optic fibre
FR2515632A1 (fr) * 1981-11-03 1983-05-06 Thomson Csf Procede d'obtention d'un objet a structure chiralique issu de l'etirage a partir d'une source de matiere ramollie, et dispositif mettant en oeuvre ce procede
US4669814A (en) * 1982-08-02 1987-06-02 Andrew Corporation Single mode, single polarization optical fiber with accessible guiding region and method of forming directional coupler using same
US4668264A (en) * 1982-08-02 1987-05-26 Andrew Corporation Method for making self-aligning optical fiber with accessible guiding region
JPS5969438A (ja) * 1982-10-15 1984-04-19 Hitachi Ltd 光フアイバ母材の製造方法
US4606605A (en) * 1984-06-29 1986-08-19 At&T Bell Laboratories Optical fiber having in-line polarization filter
GB2170920B (en) * 1985-02-12 1988-09-07 Stc Plc Beam splitter/combers
US4859223A (en) * 1987-06-15 1989-08-22 Hitachi Cable Limited Method of manufacturing polarization-maintaining optical fibers
DE3720028A1 (de) * 1987-06-16 1988-12-29 Philips Patentverwaltung Verfahren zur herstellung von lichtleitfasern
GB2239983A (en) * 1989-12-22 1991-07-17 Univ Southampton Optical fibre laser
DE4212602A1 (de) * 1992-04-15 1993-10-21 Sel Alcatel Ag Lichtwellenleiter sowie Verfahren und Vorrichtung zu seiner Herstellung
US5298047A (en) * 1992-08-03 1994-03-29 At&T Bell Laboratories Method of making a fiber having low polarization mode dispersion due to a permanent spin
US5309530A (en) * 1993-04-30 1994-05-03 At&T Bell Laboratories Technique utilizing stress-induced birefringence for reducing polarization dependent hole-burning in an amplified optical transmission system
US5327516A (en) * 1993-05-28 1994-07-05 At&T Bell Laboratories Optical fiber for wavelength division multiplexing
AU670505B2 (en) * 1993-06-22 1996-07-18 Sumitomo Electric Industries, Ltd. Optical fiber preform, optical fiber and their manufacturing methods
JP3860237B2 (ja) * 1995-07-26 2006-12-20 富士通株式会社 偏波分散の抑圧特性を持つ光ファイバ及びその製造方法
US5704960A (en) * 1995-12-20 1998-01-06 Corning, Inc. Method of forming an optical fiber for reduced polarization effects in amplifiers

Also Published As

Publication number Publication date
EP0811176A1 (de) 1997-12-10
CN1176005A (zh) 1998-03-11
KR19980702330A (ko) 1998-07-15
DE69621779D1 (de) 2002-07-18
EP0811176A4 (de) 1999-02-03
EP0811176B1 (de) 2002-06-12
CA2210470A1 (en) 1997-06-26
AU1288097A (en) 1997-07-14
JPH11501133A (ja) 1999-01-26
US5822487A (en) 1998-10-13
US5704960A (en) 1998-01-06
AU705950B2 (en) 1999-06-03
WO1997022897A1 (en) 1997-06-26

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