BR9812674A - Method for reducing polarization mode dispersion in stretched optical fiber and method for stretching optical fiber of a fiber optic preform - Google Patents

Method for reducing polarization mode dispersion in stretched optical fiber and method for stretching optical fiber of a fiber optic preform

Info

Publication number
BR9812674A
BR9812674A BR9812674-1A BR9812674A BR9812674A BR 9812674 A BR9812674 A BR 9812674A BR 9812674 A BR9812674 A BR 9812674A BR 9812674 A BR9812674 A BR 9812674A
Authority
BR
Brazil
Prior art keywords
fiber
optical fiber
stretching
polarization mode
preform
Prior art date
Application number
BR9812674-1A
Other languages
Portuguese (pt)
Inventor
Martin W Allen
Lori Lee Haskins
Lisa M Ruger
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 BR9812674A publication Critical patent/BR9812674A/en

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
    • C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
    • 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
    • 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
    • C03B2205/00—Fibre drawing or extruding details
    • C03B2205/40—Monitoring or regulating the draw tension or draw rate
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2205/00—Fibre drawing or extruding details
    • C03B2205/42—Drawing at high speed, i.e. > 10 m/s
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2205/00—Fibre drawing or extruding details
    • C03B2205/44—Monotoring or regulating the preform feed rate
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2205/00—Fibre drawing or extruding details
    • C03B2205/60—Optical fibre draw furnaces
    • C03B2205/72—Controlling or measuring the draw furnace temperature

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)
  • Manufacture, Treatment Of Glass Fibers (AREA)

Abstract

Patente de Invenção para <B>"MéTODO PARA REDUçãO DA DISPERSãO DE MODO DE POLARIZAçãO EM FIBRA óTICA ESTIRADA E MéTODO PARA ESTIRAMENTO DE FIBRA óTICA DE UMA PRé-FORMA DE FIBRA óTICA"<D>. Fibra ótica (14) é estirada de uma pré-forma (10) que é alimentada para uma fornalha à uma taxa de alimentação descendente constante. A fibra ótica (14) é estirada por um trator (20) à uma taxa de pelo menos 10 metros por segundo, e o trator (20) é permitido variar a velocidade de estirar da fibra (14) baseado no diâmetro da fibra conforme medido por um monitor de diâmetro (15) durante o processamento de estirar, de modo a manter um diâmetro de fibra relativamente constante. A manutenção da taxa de alimentação descendente da pré-forma constante, mesmo em taxas de estirar altas, em excesso de 20 metros por segundo, não afeta adversamente o processo de estirar, e acredita-se reduzir ou eliminar a oscilação no loop de controle de estirar que pode causar variações na forma do núcleo durante a formação da fibra, resultando em PMD reduzido e uniformidade de MFD aperfeiçoada.Invention Patent for <B> "METHOD FOR REDUCING THE DISPERSION OF POLARIZATION MODE IN STRAIGHT FIBER OPTICS AND METHOD FOR STRETCHING FIBER OPTICS FROM A FIBER OPTIC FORM" <D>. Optical fiber (14) is stretched from a preform (10) which is fed into a furnace at a constant downward feed rate. The optical fiber (14) is drawn by a tractor (20) at a rate of at least 10 meters per second, and the tractor (20) is allowed to vary the drawing speed of the fiber (14) based on the diameter of the fiber as measured by a diameter monitor (15) during the stretching process, in order to maintain a relatively constant fiber diameter. Maintaining the descending feed rate of the constant preform, even at high stretch rates, in excess of 20 meters per second, does not adversely affect the stretching process, and is believed to reduce or eliminate oscillation in the control loop. stretching which can cause variations in the shape of the core during fiber formation, resulting in reduced PMD and improved MFD uniformity.

BR9812674-1A 1997-09-25 1998-09-10 Method for reducing polarization mode dispersion in stretched optical fiber and method for stretching optical fiber of a fiber optic preform BR9812674A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US5966297P 1997-09-25 1997-09-25
PCT/US1998/018785 WO1999015470A1 (en) 1997-09-25 1998-09-10 Draw constant downfeed process

Publications (1)

Publication Number Publication Date
BR9812674A true BR9812674A (en) 2000-08-22

Family

ID=22024419

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9812674-1A BR9812674A (en) 1997-09-25 1998-09-10 Method for reducing polarization mode dispersion in stretched optical fiber and method for stretching optical fiber of a fiber optic preform

Country Status (9)

Country Link
EP (1) EP1030823A4 (en)
JP (1) JP2001517598A (en)
KR (1) KR20010024306A (en)
CN (1) CN1119301C (en)
AU (1) AU738625B2 (en)
BR (1) BR9812674A (en)
CA (1) CA2301033A1 (en)
ID (1) ID24850A (en)
WO (1) WO1999015470A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6232583B1 (en) * 1999-08-20 2001-05-15 Alcatel Infrared high temperature measurement of optical fiber during draw
CN1931757B (en) * 2001-11-20 2012-08-29 王胜国 Optical fiber drawing process and control new method
KR100492964B1 (en) * 2002-07-29 2005-06-07 삼성전자주식회사 Apparatus for drawing optical fiber and method for controlling optical fiber preform feeding speed
CN1331654C (en) * 2004-12-31 2007-08-15 中国科学院西安光学精密机械研究所 Drawing equipment for polymer photonic crystal optical fiber preform
KR100642378B1 (en) * 2005-04-04 2006-11-03 엘에스전선 주식회사 A device for decreasing pmd by changing pressure around optical fiber and apparatus for making an optical fiber having low polarization mode dispersion by using the same
DE102014209601A1 (en) 2014-05-20 2015-11-26 Itv Denkendorf Produktservice Gmbh Core-sheath-thread, core-sheath-thread-making process, medical product and medical kit
DE102014209606B4 (en) 2014-05-20 2018-11-29 Itv Denkendorf Produktservice Gmbh Threads with varying thread diameter and method of manufacturing such threads
CN104944764A (en) * 2015-05-29 2015-09-30 成都亨通光通信有限公司 Drawing method with characteristic of optical fiber wire diameter control benefiting
CN105276122B (en) * 2015-09-24 2018-10-23 北京天地玛珂电液控制系统有限公司 A kind of five-plunger emulsion pump
CN111482477B (en) * 2020-03-26 2022-04-29 浙江技鸣电工器材有限公司 Online measurement control system of wire drawing machine
US20240279104A1 (en) * 2023-02-20 2024-08-22 Sterlite Technologies Limited Apparatus, system, and method for drawing an optical fiber

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59217642A (en) * 1983-05-23 1984-12-07 Furukawa Electric Co Ltd:The Spinning of optical fiber
IN169141B (en) * 1985-08-21 1991-09-07 Stc Plc
JPS62153137A (en) * 1985-12-27 1987-07-08 Sumitomo Electric Ind Ltd Wire drawing of optical fiber
JP2765033B2 (en) * 1989-04-14 1998-06-11 住友電気工業株式会社 Optical fiber drawing method
JPH02283633A (en) * 1989-04-24 1990-11-21 Furukawa Electric Co Ltd:The Drawing method for optical fiber
JPH02307840A (en) * 1989-05-23 1990-12-21 Fujikura Ltd Method for spinning optical fiber
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
JPH06211536A (en) * 1993-01-13 1994-08-02 Asahi Optical Co Ltd Production of glass fiber
DE4412563A1 (en) * 1994-04-12 1995-10-19 Siecor Fertigungsgesellschaft Appts. and method for cooling an optical fibre during its prodn.
FR2746093B1 (en) * 1996-03-13 1998-04-24 METHOD AND DEVICE FOR REGULATING AN OPTICAL FIBER FIBRATION TOWER TAKING INTO ACCOUNT A MEASUREMENT OF THE BARE FIBER TENSION
KR0184481B1 (en) * 1996-06-10 1999-05-15 김광호 Highly productive optical fiber extraction facility and extraction process thereof

Also Published As

Publication number Publication date
KR20010024306A (en) 2001-03-26
CA2301033A1 (en) 1999-04-01
ID24850A (en) 2000-08-24
AU9381798A (en) 1999-04-12
CN1119301C (en) 2003-08-27
EP1030823A4 (en) 2000-12-27
JP2001517598A (en) 2001-10-09
WO1999015470A1 (en) 1999-04-01
CN1271334A (en) 2000-10-25
AU738625B2 (en) 2001-09-20
EP1030823A1 (en) 2000-08-30

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Legal Events

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B08F Application fees: application dismissed [chapter 8.6 patent gazette]

Free format text: REFERENTE A 6A E 7A ANUIDADES.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: EM VIRTUDE DO ARQUIVAMENTO PUBLICADO NA RPI 1830 DE 31-01-2006 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDO O ARQUIVAMENTO DO PEDIDO DE PATENTE, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.