BR0215963A - Método para fabricar uma fibra óptica de dispersão não nula, e, fibra ótica - Google Patents

Método para fabricar uma fibra óptica de dispersão não nula, e, fibra ótica

Info

Publication number
BR0215963A
BR0215963A BR0215963-5A BR0215963A BR0215963A BR 0215963 A BR0215963 A BR 0215963A BR 0215963 A BR0215963 A BR 0215963A BR 0215963 A BR0215963 A BR 0215963A
Authority
BR
Brazil
Prior art keywords
optical fiber
delta
zero dispersion
segment
sym
Prior art date
Application number
BR0215963-5A
Other languages
English (en)
Other versions
BRPI0215963B1 (pt
Inventor
Antonio Collaro
Giuseppe Ferri
Alfonso Pannullo
Original Assignee
Pirelli & C 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 Pirelli & C Spa filed Critical Pirelli & C Spa
Publication of BR0215963A publication Critical patent/BR0215963A/pt
Publication of BRPI0215963B1 publication Critical patent/BRPI0215963B1/pt

Links

Classifications

    • 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
    • G02B6/02214—Optical fibres with cladding with or without a coating tailored to obtain the desired dispersion, e.g. dispersion shifted, dispersion flattened
    • G02B6/02219—Characterised by the wavelength dispersion properties in the silica low loss window around 1550 nm, i.e. S, C, L and U bands from 1460-1675 nm
    • G02B6/02266—Positive dispersion fibres at 1550 nm
    • G02B6/02271—Non-zero dispersion shifted fibres, i.e. having a small positive dispersion at 1550 nm, e.g. ITU-T G.655 dispersion between 1.0 to 10 ps/nm.km for avoiding nonlinear effects
    • 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
    • C03B37/0253—Controlling or regulating
    • 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
    • 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
    • G02B6/03644—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 - + -
    • 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
    • G02B6/03661—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 4 layers only
    • 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
    • G02B6/24—Coupling light guides
    • G02B6/255—Splicing of light guides, e.g. by fusion or bonding
    • G02B6/2551—Splicing of light guides, e.g. by fusion or bonding using thermal methods, e.g. fusion welding by arc discharge, laser beam, plasma torch
    • 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
    • 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
    • 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
    • C03B2203/29—Segmented core 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
    • C03B2203/36—Dispersion modified fibres, e.g. wavelength or polarisation shifted, flattened or compensating fibres (DSF, DFF, DCF)
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2205/00—Fibre drawing or extruding details
    • C03B2205/40—Monitoring or regulating the draw tension or draw rate
    • 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
    • G02B6/02004—Optical fibres with cladding with or without a coating characterised by the core effective area or mode field radius
    • G02B6/02009—Large effective area or mode field radius, e.g. to reduce nonlinear effects in single mode fibres
    • G02B6/02014—Effective area greater than 60 square microns in the C band, i.e. 1530-1565 nm
    • 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
    • G02B6/02214—Optical fibres with cladding with or without a coating tailored to obtain the desired dispersion, e.g. dispersion shifted, dispersion flattened
    • G02B6/0228—Characterised by the wavelength dispersion slope properties around 1550 nm
    • 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
    • G02B6/03605—Highest refractive index not on central axis
    • G02B6/03611—Highest index adjacent to central axis region, e.g. annular core, coaxial ring, centreline depression affecting waveguiding

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Dispersion Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Plasma & Fusion (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)

Abstract

"MéTODO PARA FABRICAR UMA FIBRA óPTICA DE DISPERSãO NãO NULA, E, FIBRA óTICA". A invenção refere-se a um processo para fabricação de uma fibra óptica de dispersão deslocada e não nula tendo baixa perda em emenda e baixa atenuação e a uma fibra óptica produzida por este processo. Uma redução da perda em emenda é observada com o decréscimo da tensão de estiramento. A fibra óptica inclui uma região núcleo com três segmentos e um segmento interno de casca, cada um tendo uma diferença percentual máxima de índice de refração, <30>delta~ <sym>~ %, i = 0 - 3, o subscrito <sym> referente a um segmento particular, os segmentos núcleos sendo selecionados de forma que <30> delta~ 0~ % ><30> delta~ 2~ % > <30> delta~ 1~, % <242> 0 e ><30> delta~ 2~ % > delta~ 3~ % <242>.0. Fibras ópticas que apresentam baixa perda em emenda foram estiradas em tensões não superiores a 150 g, preferivelmente não superiores a 100 g.
BRPI0215963A 2002-12-24 2002-12-24 método para fabricar uma fibra óptica de dispersão não nula BRPI0215963B1 (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2002/014757 WO2004059355A1 (en) 2002-12-24 2002-12-24 Optical fibre having low splice loss and method for making it

Publications (2)

Publication Number Publication Date
BR0215963A true BR0215963A (pt) 2005-09-13
BRPI0215963B1 BRPI0215963B1 (pt) 2016-12-13

Family

ID=32668690

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0215963A BRPI0215963B1 (pt) 2002-12-24 2002-12-24 método para fabricar uma fibra óptica de dispersão não nula

Country Status (10)

Country Link
US (1) US7849713B2 (pt)
EP (1) EP1576400B1 (pt)
JP (1) JP2006512266A (pt)
CN (1) CN100343704C (pt)
AU (1) AU2002358796A1 (pt)
BR (1) BRPI0215963B1 (pt)
CA (1) CA2509263C (pt)
DK (1) DK1576400T3 (pt)
HK (1) HK1086338A1 (pt)
WO (1) WO2004059355A1 (pt)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015072466A (ja) 2013-09-04 2015-04-16 住友電気工業株式会社 光ファイバ伝送路
US10481323B2 (en) * 2014-02-14 2019-11-19 Adolphe Merkle Institute, University Of Fribourg Physiologically responsive mechanically adaptive polymer optical fibers, production and methods of use
JP2016148749A (ja) * 2015-02-12 2016-08-18 株式会社フジクラ 分散シフト光ファイバ
US10438846B2 (en) * 2017-11-28 2019-10-08 Taiwan Semiconductor Manufacturing Co., Ltd. Physical vapor deposition process for semiconductor interconnection structures
US10408996B2 (en) * 2017-11-30 2019-09-10 Sterlite Technologies Limited Non-zero dispersion shifted fiber with low cut off wavelength and large effective area

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3823995A (en) * 1972-03-30 1974-07-16 Corning Glass Works Method of forming light focusing fiber waveguide
US4810276A (en) 1987-08-05 1989-03-07 Corning Glass Works Forming optical fiber having abrupt index change
US6212322B1 (en) 1998-09-11 2001-04-03 Corning Incorporated Positive dispersion low dispersion slope fiber
US6247987B1 (en) * 1999-04-26 2001-06-19 Chad Byron Moore Process for making array of fibers used in fiber-based displays
US6427044B1 (en) 1999-06-23 2002-07-30 Sumitomo Electric Industries, Ltd. Optical fiber
CA2385935A1 (en) * 1999-09-27 2001-04-05 Sumitomo Electric Industries, Ltd. Distribution management optical fiber, its manufacturing method, optical communication system employing the optical fiber and optical fiber base material
WO2001035132A1 (fr) 1999-11-08 2001-05-17 Sumitomo Electric Industries, Ltd. Fibre optique, son procede de fabrication et systeme de transmission optique la contenant
US8695379B2 (en) 1999-12-29 2014-04-15 Prysmian Cavi E Sistemi Energia S.R.L. Apparatus and method for applying traction to an elongate element produced by fusing a preform of glass material and usable in a process for producing an optical fibre
AU2002231425A1 (en) * 2000-08-16 2002-02-25 Corning Incorporated Optical fiber with large effective area, low dispersion and low dispersion slope
JP4540034B2 (ja) 2000-12-22 2010-09-08 コーニング インコーポレイテッド 還元剤を用いたスート・プリフォームの処理

Also Published As

Publication number Publication date
WO2004059355A1 (en) 2004-07-15
BRPI0215963B1 (pt) 2016-12-13
EP1576400B1 (en) 2012-06-13
DK1576400T3 (da) 2012-07-30
JP2006512266A (ja) 2006-04-13
EP1576400A1 (en) 2005-09-21
CA2509263A1 (en) 2004-07-15
US7849713B2 (en) 2010-12-14
US20070003200A1 (en) 2007-01-04
CN1717600A (zh) 2006-01-04
CN100343704C (zh) 2007-10-17
CA2509263C (en) 2011-09-20
HK1086338A1 (en) 2006-09-15
AU2002358796A1 (en) 2004-07-22

Similar Documents

Publication Publication Date Title
BR9808613A (pt) Processo de produção de uma fibra ótica tendo região de núcleo de ìndice diminuìdo.
WO2002051761A3 (en) Low water peak optical waveguide fiber and method of manufacturing same
BR0302547A (pt) Fibra inorgânica vìtrea resistente a altas temperaturas e processo de fabricação da mesma
BR112015027582A2 (pt) fibra óptica com diâmetro do campo do modo grande e baixas perdas por micro curvaturas
AR031185A1 (es) Casquillo de empalme interacoplable, de baja perdida, para fibras opticas y un metodo para la fabricacion de este
BR112014006106A2 (pt) fibra ótica e sistema de transmissão ótica de multiplexação de divisão de modo
WO2008013627A3 (en) Low bend loss optical fiber with high modulus coating
BR112012012441A2 (pt) fibra óptica de baixa perda
BR0010012A (pt) Fibra ótica e um método para fabricação de uma fibra ótica de dispersão de modo de polarização baixa e baixa atenuação
BRPI0514071A (pt) processo e instalação para fabricação de polpa de celulose
BR0306455A (pt) Processo e aparelho para produzir uma fibra ótica de baixa pmd, cabo ótico, e, fibra ótica
BRPI0411471A (pt) método para produzir um não-trançado fibroso e não-trançado fibroso
ATE397228T1 (de) Faser mit positiver dispersion und geringem dispersionsgradienten
BR9508480A (pt) Fibra inorgânica e processo para sua formação
ATE263740T1 (de) Doppelbrechende optische fasern und verfahren zu deren herstellung sowie zu deren verbindung
BR9814195A (pt) Guia de onda de modo simples de alta performance
BR0215963A (pt) Método para fabricar uma fibra óptica de dispersão não nula, e, fibra ótica
BRPI0415665A (pt) montagens de fibra ótica, cabos, e métodos de manufatura destes
BR0013016A (pt) Processo para projeto e ajuste de lentes considerando-se as propriedades das lentes
BR0210109A (pt) Fibra óptica
WO2003058308A8 (en) Birefringent optical fibres
BR0111478A (pt) Fibra óptica de modo único, e, método para a fabricação da mesma
BR0215107A (pt) Processo de fabricação de monofilamentos de polipropileno, monofilamentos de propileno e seu uso
ATE489651T1 (de) Verfahren zur herstellung einer lichtleitfaser mit brechungsindexvariationen
BR0318487A (pt) processo para produzir uma fibra ótica de dispersão de modo de baixa polarização

Legal Events

Date Code Title Description
B25A Requested transfer of rights approved

Owner name: PRYSMIAN CAVI E SISTEMI ENERGIA S.R.L. (IT)

Free format text: TRANFERERIDO DE : PIRELLI AND C.S.P.A.

B15K Others concerning applications: alteration of classification

Free format text: AS CLASSIFICACOES ANTERIORES ERAM: G02B 6/16 , C03B 37/027

Ipc: C03B 37/027 (2006.01), C03B 37/025 (2006.01), G02B

B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 13/12/2016, OBSERVADAS AS CONDICOES LEGAIS.

B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time

Free format text: REFERENTE A 19A ANUIDADE.

B24J Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)

Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2650 DE 19-10-2021 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.