BR0116585A - Cabo óptico para telecomunicações, método para confeccionar um cabo óptico para telecomunicações, fibra óptica adequada para uso em um cabo óptico, e, método para confeccionar a mesma - Google Patents

Cabo óptico para telecomunicações, método para confeccionar um cabo óptico para telecomunicações, fibra óptica adequada para uso em um cabo óptico, e, método para confeccionar a mesma

Info

Publication number
BR0116585A
BR0116585A BR0116585-2A BR0116585A BR0116585A BR 0116585 A BR0116585 A BR 0116585A BR 0116585 A BR0116585 A BR 0116585A BR 0116585 A BR0116585 A BR 0116585A
Authority
BR
Brazil
Prior art keywords
optical
optical cable
making
telecommunications
core
Prior art date
Application number
BR0116585-2A
Other languages
English (en)
Other versions
BRPI0116585B1 (pt
Inventor
Franco Cochini
Andrea Mazzotti
Alfonso Cavallaro
Francesco Di Nola
Original Assignee
Pirelli
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 filed Critical Pirelli
Publication of BR0116585A publication Critical patent/BR0116585A/pt
Publication of BRPI0116585B1 publication Critical patent/BRPI0116585B1/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
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4401—Optical cables
    • G02B6/4429—Means specially adapted for strengthening or protecting the cables
    • G02B6/443—Protective covering
    • G02B6/4432—Protective covering with fibre reinforcements
    • 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
    • C03B37/014—Manufacture of preforms for drawing fibres or filaments made entirely or partially by chemical means, e.g. vapour phase deposition of bulk porous glass either by outside vapour deposition [OVD], or by outside vapour phase oxidation [OVPO] or by vapour axial deposition [VAD]
    • C03B37/01486—Means for supporting, rotating or translating the preforms being formed, e.g. lathes
    • 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
    • C03B37/02745—Fibres having rotational spin around the central longitudinal axis, e.g. alternating +/- spin to reduce polarisation mode dispersion
    • 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
    • C03B2203/18—Axial perturbations, e.g. in refractive index or composition
    • 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
    • C03B2203/18—Axial perturbations, e.g. in refractive index or composition
    • C03B2203/19—Alternating positive/negative spins or twists
    • 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
    • C03B2203/18—Axial perturbations, e.g. in refractive index or composition
    • C03B2203/20—Axial perturbations, e.g. in refractive index or composition helical
    • 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
    • C03B2203/00—Fibre product details, e.g. structure, shape
    • C03B2203/32—Eccentric core or cladding
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2203/00—Fibre product details, e.g. structure, shape
    • C03B2203/34—Plural core other than bundles, e.g. double 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
    • C03B2203/36—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
    • C03B2205/06—Rotating the fibre fibre about its longitudinal axis
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2207/00—Glass deposition burners
    • C03B2207/60—Relationship between burner and deposit, e.g. position
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2207/00—Glass deposition burners
    • C03B2207/70—Control measures
    • 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
    • G02B6/02285—Characterised by the polarisation mode dispersion [PMD] properties, e.g. for minimising PMD
    • 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 - + -

Landscapes

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

Abstract

"CABO óPTICO PARA TELECOMUNICAçõES, MéTODO PARA CONFECCIONAR UM CABO óPTICO PARA TELECOMUNICAçõES, FIBRA óPTICA ADEQUADA PARA USO EM UM CABO óPTICO, E, MéTODO PARA CONFECCIONAR A MESMA". Um cabo óptico (1) para telecomunicações compreende um núcleo óptico (2) e diversos elementos ou camadas de proteção e reforço (7, 11 e 13) colocados em torno do núcleo óptico, o núcleo óptico (2) compreendendo, por sua vez um elemento de reforço central (4), uma camada de polímero (5), diversas fibras ópticas (3) incorporadas na camada de polímero (5) e um revestimento fino (6) que cobre a camada de polímero (5), as fibras ópticas possuindo uma rotação alternada em relação a seus próprios eixos, com um valor máximo de pelo menos 4 torções por metro, e compreendendo um núcleo (12) possuindo uma elipticidade média na faixa de 0,25 a 0,55, de tal modo que os efeitos de birrefringência das fibras causados pelo processo de cabeamento são significativamente reduzidos.
BRPI0116585-2A 2000-12-28 2001-12-14 Cabo óptico para telecomunicações, fibra óptica adequada para uso em um cabo óptico, e, método para confeccionar a mesma BRPI0116585B1 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP00128599 2000-12-28
PCT/EP2001/014760 WO2002053117A2 (en) 2000-12-28 2001-12-14 Method for producing an optical fibre telecommunications cable with reduced polarization mode dispersion

Publications (2)

Publication Number Publication Date
BR0116585A true BR0116585A (pt) 2004-01-06
BRPI0116585B1 BRPI0116585B1 (pt) 2015-08-04

Family

ID=31197761

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0116585-2A BRPI0116585B1 (pt) 2000-12-28 2001-12-14 Cabo óptico para telecomunicações, fibra óptica adequada para uso em um cabo óptico, e, método para confeccionar a mesma

Country Status (6)

Country Link
US (1) US7016576B2 (pt)
EP (1) EP1356333A2 (pt)
CN (1) CN100390593C (pt)
BR (1) BRPI0116585B1 (pt)
CA (1) CA2433094C (pt)
WO (1) WO2002053117A2 (pt)

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* Cited by examiner, † Cited by third party
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WO2004050573A1 (en) * 2002-09-25 2004-06-17 Giacomo Stefano Roba Process for producing an optical fiber having a low polarization mode dispersion
US6876804B2 (en) * 2003-03-20 2005-04-05 Corning Incorporated Method of making a spun optical fiber with low polarization mode dispersion
US7295734B2 (en) * 2003-07-14 2007-11-13 Massachusetts Institute Of Technology Optoelectronic fiber codrawn from conducting, semiconducting, and insulating materials
US6993229B2 (en) * 2003-09-30 2006-01-31 Corning Incorporated Method of making spun optical fiber with low PMD
GB0605714D0 (en) * 2006-03-22 2006-05-03 Schlumberger Holdings Fibre optic cable
US7599592B2 (en) * 2006-08-30 2009-10-06 3M Innovative Properties Company Polymer fiber polarizers with aligned fibers
US20080055724A1 (en) * 2006-08-30 2008-03-06 3M Innovative Properties Company Optical devices containing birefringent polymer fibers
US7773834B2 (en) 2006-08-30 2010-08-10 3M Innovative Properties Company Multilayer polarizing fibers and polarizers using same
US20080057277A1 (en) * 2006-08-30 2008-03-06 3M Innovative Properties Company Polymer fiber polarizers
US7845069B2 (en) * 2007-11-30 2010-12-07 Commscope, Inc. Of North Carolina Methods for forming armored cable assembly
NO328774B1 (no) * 2008-10-06 2010-05-10 Aker Subsea As SZ-slagningsmaskin
FR2950621A1 (fr) * 2009-09-25 2011-04-01 Draka Comteq France Procede et equipement de recharge d'une preforme de fibre optique
CN113069204A (zh) * 2014-11-14 2021-07-06 波士顿科学医学有限公司 手术激光系统和激光装置
US10464838B2 (en) 2015-01-13 2019-11-05 Asi/Silica Machinery, Llc Enhanced particle deposition system and method
JP6618744B2 (ja) * 2015-09-18 2019-12-11 株式会社フジクラ 光ファイバケーブル、光ファイバケーブルの製造方法および製造装置
CN110015843B (zh) * 2018-01-09 2021-08-24 宁波大学 一种光纤预制棒的掏芯挤压制备方法
WO2020092121A1 (en) * 2018-10-31 2020-05-07 Corning Incorporated Characterization of optical retardance of a glass-based sample using light-scattering polarimetry

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US4307938A (en) * 1979-06-19 1981-12-29 Andrew Corporation Dielectric waveguide with elongate cross-section
JPS5835503A (ja) * 1981-08-27 1983-03-02 Nippon Telegr & Teleph Corp <Ntt> 零偏波分散単一直線偏波光フアイバ
GB2191872B (en) * 1986-06-17 1989-12-28 Stc Plc Optical fibre cables
KR950014101B1 (ko) * 1987-02-16 1995-11-21 스미토모덴기고교 가부시키가이샤 광섬유용 유리모재의 가열로와 그 유리모재의 제조방법
CA1320634C (en) * 1988-05-27 1993-07-27 Hiroshi Kajioka Method of producing elliptic core type polarization-maintaining optical fiber
US4950047A (en) * 1989-06-05 1990-08-21 Corning Incorporated Method of coating optical fibers
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
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Also Published As

Publication number Publication date
WO2002053117A3 (en) 2003-08-28
EP1356333A2 (en) 2003-10-29
CA2433094C (en) 2011-10-04
US7016576B2 (en) 2006-03-21
CA2433094A1 (en) 2002-07-11
BRPI0116585B1 (pt) 2015-08-04
US20040081412A1 (en) 2004-04-29
CN1531664A (zh) 2004-09-22
WO2002053117A2 (en) 2002-07-11
CN100390593C (zh) 2008-05-28

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B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B15K Others concerning applications: alteration of classification

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Ipc: G02B 6/44 (2006.01), G02B 6/04 (2006.01)

B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
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