JP2008280240A5 - - Google Patents

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Publication number
JP2008280240A5
JP2008280240A5 JP2008122810A JP2008122810A JP2008280240A5 JP 2008280240 A5 JP2008280240 A5 JP 2008280240A5 JP 2008122810 A JP2008122810 A JP 2008122810A JP 2008122810 A JP2008122810 A JP 2008122810A JP 2008280240 A5 JP2008280240 A5 JP 2008280240A5
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JP
Japan
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core
cylinder
core body
pieces
piece
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JP2008122810A
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English (en)
Japanese (ja)
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JP2008280240A (ja
JP4870114B2 (ja
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Priority claimed from US11/801,365 external-priority patent/US7836728B2/en
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Publication of JP2008280240A5 publication Critical patent/JP2008280240A5/ja
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Publication of JP4870114B2 publication Critical patent/JP4870114B2/ja
Expired - Fee Related legal-status Critical Current
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JP2008122810A 2007-05-09 2008-05-09 光ファイバプリフォームのクラッド対コア比Ｄ／ｄが低いコアロッドのＤ／ｄの増加方法 Expired - Fee Related JP4870114B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/801365 2007-05-09
US11/801,365 US7836728B2 (en) 2007-05-09 2007-05-09 Increasing the cladding-to-core ratio (D/d) of low D/d ratio core rods in optical fiber performs

Publications (3)

Publication Number Publication Date
JP2008280240A JP2008280240A (ja) 2008-11-20
JP2008280240A5 true JP2008280240A5 (https=) 2011-01-06
JP4870114B2 JP4870114B2 (ja) 2012-02-08

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ID=39708655

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2008122810A Expired - Fee Related JP4870114B2 (ja) 2007-05-09 2008-05-09 光ファイバプリフォームのクラッド対コア比Ｄ／ｄが低いコアロッドのＤ／ｄの増加方法

Country Status (5)

Country Link
US (2) US7836728B2 (https=)
EP (1) EP1990324B1 (https=)
JP (1) JP4870114B2 (https=)
KR (1) KR100958270B1 (https=)
CN (2) CN102092934B (https=)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7836728B2 (en) * 2007-05-09 2010-11-23 Ofs Fitel, Llc Increasing the cladding-to-core ratio (D/d) of low D/d ratio core rods in optical fiber performs
JP5520640B2 (ja) * 2010-03-08 2014-06-11 株式会社フジクラ 母材の着脱方法及び光ファイバの製造方法
CN104968622B (zh) 2012-12-28 2018-08-14 普睿司曼股份公司 制造用于具有低水峰的光纤的预制件的方法
EP2938581B1 (en) 2012-12-28 2018-05-02 Prysmian S.p.A. Method of manufacturing preforms for optical fibres having low water peak
KR101978103B1 (ko) * 2014-08-13 2019-05-13 헤래우스 테네보 엘엘씨 석영 유리 제품 및 석영 유리 광학 소자의 형성 방법
CN109665709B (zh) * 2016-07-01 2021-11-12 浙江富通光纤技术有限公司 光纤预制棒松散体的剥除装置
WO2018138736A2 (en) * 2017-01-27 2018-08-02 Sterlite Technologies Limited Optical fiber draw assembly and fabricated optical fiber thereof
CN110981181B (zh) * 2019-12-19 2021-03-26 华中科技大学 一种异质玻璃材料光纤拉丝方法
US12195380B2 (en) * 2021-03-31 2025-01-14 Sterlite Technologies Limited Preform assembly for drawing multicore or holey optical fibre and method of manufacturing thereof
WO2022224798A1 (ja) * 2021-04-23 2022-10-27 住友電気工業株式会社 光ファイバの製造方法
US20250002391A1 (en) * 2023-06-30 2025-01-02 Sterlite Technologies Limited Optical Fiber Drawing Apparatus and Method Thereof

Family Cites Families (23)

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Publication number Priority date Publication date Assignee Title
GB1551657A (en) 1977-05-17 1979-08-30 Standard Telephones Cables Ltd Manufacture of optical fibres
JPS5590431A (en) * 1978-12-28 1980-07-09 Fujitsu Ltd Preparation of single mode glass fiber
FR2487811B1 (fr) 1980-07-31 1985-07-26 France Etat Procede et installation de fabrication de fibres optiques en continu
JPS5767040A (en) * 1980-10-06 1982-04-23 Nippon Telegr & Teleph Corp <Ntt> Manufacture of long-sized preform rod
US5958103A (en) * 1995-03-06 1999-09-28 Hoya Corporation Process for producing preform for glass fiber and process for producing glass fiber
US5894537A (en) * 1996-01-11 1999-04-13 Corning Incorporated Dispersion managed optical waveguide
US6131414A (en) * 1997-05-13 2000-10-17 Shin-Etsu Chemical Co., Ltd. Method for making a preform for optical fibers by drawing a mother ingot
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
DE19944951B4 (de) * 1999-09-20 2010-06-10 Behr Gmbh & Co. Kg Klimaanlage mit innerem Wärmeübertrager
US6460378B1 (en) * 2000-02-29 2002-10-08 Xiaoyuan Dong Collapsing a multitube assembly and subsequent optical fiber drawing in the same furnace
JP2003531796A (ja) * 2000-03-25 2003-10-28 ヘライオステネフォーアーゲー サブストレート管及び光ファイバーのプリフォームを製造する方法
EP1182173A1 (en) * 2000-08-08 2002-02-27 Lucent Technologies Inc. Preform for optical fibres and methods for making the preform and optical fibres
US6701753B2 (en) * 2001-02-11 2004-03-09 Fitel Usa Corp. Method and apparatus for making improved optical fiber preforms and optical fiber therefrom
US6574994B2 (en) * 2001-06-18 2003-06-10 Corning Incorporated Method of manufacturing multi-segmented optical fiber and preform
JP3753975B2 (ja) 2001-11-29 2006-03-08 株式会社フジクラ シングルモード光ファイバの製造方法及びシングルモード光ファイバ
JP4252807B2 (ja) 2003-01-14 2009-04-08 古河電気工業株式会社 光ファイバ用プリフォームの製造方法
JP4292862B2 (ja) * 2003-05-12 2009-07-08 住友電気工業株式会社 光ファイバ用母材の製造方法及び光ファイバの製造方法
JP5176274B2 (ja) * 2003-05-19 2013-04-03 住友電気工業株式会社 光ファイバとその製造方法
JP3917115B2 (ja) 2003-07-02 2007-05-23 日本電信電話株式会社 光ファイバの製造方法
JP4179265B2 (ja) * 2003-10-30 2008-11-12 住友電気工業株式会社 光ファイバ母材及びその製造方法
US7641969B2 (en) 2005-03-23 2010-01-05 Fletcher Iii Joseph P Optical fiber preform with overclad tubes
US20070003198A1 (en) * 2005-06-29 2007-01-04 Lance Gibson Low loss optical fiber designs and methods for their manufacture
US7836728B2 (en) * 2007-05-09 2010-11-23 Ofs Fitel, Llc Increasing the cladding-to-core ratio (D/d) of low D/d ratio core rods in optical fiber performs

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