JP2012133388A - ディプレスト・インデックス光ファイバの製造 - Google Patents
ディプレスト・インデックス光ファイバの製造 Download PDFInfo
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- JP2012133388A JP2012133388A JP2012036938A JP2012036938A JP2012133388A JP 2012133388 A JP2012133388 A JP 2012133388A JP 2012036938 A JP2012036938 A JP 2012036938A JP 2012036938 A JP2012036938 A JP 2012036938A JP 2012133388 A JP2012133388 A JP 2012133388A
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- cladding
- doped
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- 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
- C03B37/01205—Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments
- C03B37/01211—Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments by inserting one or more rods or tubes into a tube
-
- 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
-
- 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]
-
- 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]
- C03B37/018—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] by glass deposition on a glass substrate, e.g. by inside-, modified-, plasma-, or plasma modified- chemical vapour deposition [ICVD, MCVD, PCVD, PMCVD], i.e. by thin layer coating on the inside or outside of a glass tube or on a glass rod
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL 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
- C03C13/00—Fibre or filament compositions
- C03C13/04—Fibre optics, e.g. core and clad fibre compositions
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL 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
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
-
- 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
- G02B6/03622—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 2 layers only
- G02B6/03627—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 2 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
- G02B6/03694—Multiple layers differing in properties other than the refractive index, e.g. attenuation, diffusion, stress properties
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2201/00—Type of glass produced
- C03B2201/06—Doped silica-based glasses
- C03B2201/08—Doped silica-based glasses doped with boron or fluorine or other refractive index decreasing dopant
- C03B2201/12—Doped silica-based glasses doped with boron or fluorine or other refractive index decreasing dopant doped with fluorine
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2201/00—Type of glass produced
- C03B2201/06—Doped silica-based glasses
- C03B2201/30—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi
- C03B2201/31—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi doped with germanium
-
- 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
- G02B6/03677—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 arranged - + + -
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geochemistry & Mineralogy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Manufacture, Treatment Of Glass Fibers (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
Abstract
【解決手段】本発明は、ディプレスト・インデックス・クラッディングを2ステップで作成する方法である。内側クラッディングの最も内側の部分は、スート法を使用して作られ、これによって、ほとんどの光出力を運ぶクラッディングの領域についてスート法の有利性を引き出し、その後、ロッド・イン・チューブ・ステップを使用して内側クラッディング層の残りの部分を形成する。この方法は、両方の方法の有利性と不利益を効果的に密接に結合させる。
【選択図】図2
Description
Δ=(n(r)−nSiO2)/nSiO2
ただし、n(r)は半径方向位置の関数としての屈折率であり、nSiO2は純シリカの屈折率である。コアは正のΔを有し、内側クラッディングは負のΔを有し、外側クラッディング13は0のΔを有する。通常、外側クラッディング領域13はシリカ・チューブを使用して形成される。
WD=(DF−DC)/2
として表すことができ、ここで、DFは、Fドーピングされた領域の直径(図6では約46ミクロン)であり、DCは、コアの直径(図6では約8ミクロン)である。
WD[(DF−DC)/2]>10ミクロン、好ましくは14ミクロンを超える。
ディプレスト・内側クラッディング(12)Δの75%超が、−0.0005より負。
Claims (8)
- ダウン・ドーピングされた内側クラッディング層によって囲まれたアップ・ドーピングされたコアを含む光ファイバであって、前記ダウン・ドーピングされた内側クラッディング層は、
VADまたはOVDによってスートから得られたガラスを含む、前記コアに隣接する第1のダウン・ドーピングされたクラッディング領域と、
オーバークラッド・チューブから得られたガラスを含む、前記第1クラッディング領域を囲む第2のダウン・ドーピングされたクラッディング領域とを含むことを特徴とする光ファイバ。 - 前記ダウン・ドーピングされたクラッディング領域にはフッ素がドーピングされていることを特徴とする請求項1に記載の光ファイバ。
- 前記内側クラッディング層は、
WD=(DF−DC)/2
(DFは前記ダウン・ドーピングされた領域の直径、DCは前記コアの直径、そしてWDは12ミクロンより大きい)によって定義される幅WDを有することを特徴とする請求項1に記載の光ファイバ。 - 前記第1ダウン・ドーピングされたクラッディング領域の幅は少なくとも0.25WDであることを特徴とする請求項1に記載の光ファイバ。
- 前記第1ダウン・ドーピングされたクラッディング領域の少なくとも50%は−0.0005より負のデルタを有することを特徴とする請求項1に記載の光ファイバ。
- 前記第2ダウン・ドーピングされたクラッディング領域は−0.0008より負のデルタを有することを特徴とする請求項1に記載の光ファイバ。
- 前記ディプレスト・クラッディング領域の幅WDの少なくとも75%は−0.0005より負のデルタを有することを特徴とする請求項1に記載の光ファイバ。
- 1383nmで0.31dB/km未満の水ピークを有することを特徴とする請求項1に記載の光ファイバ。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/366,361 US20070204657A1 (en) | 2006-03-02 | 2006-03-02 | Manufacture of depressed index optical fibers |
US11/366361 | 2006-03-02 |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007052305A Division JP2007230862A (ja) | 2006-03-02 | 2007-03-02 | ディプレスト・インデックス光ファイバの製造 |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2012133388A true JP2012133388A (ja) | 2012-07-12 |
Family
ID=38470314
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007052305A Withdrawn JP2007230862A (ja) | 2006-03-02 | 2007-03-02 | ディプレスト・インデックス光ファイバの製造 |
JP2012036938A Pending JP2012133388A (ja) | 2006-03-02 | 2012-02-23 | ディプレスト・インデックス光ファイバの製造 |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007052305A Withdrawn JP2007230862A (ja) | 2006-03-02 | 2007-03-02 | ディプレスト・インデックス光ファイバの製造 |
Country Status (4)
Country | Link |
---|---|
US (2) | US20070204657A1 (ja) |
JP (2) | JP2007230862A (ja) |
KR (1) | KR20070090747A (ja) |
CN (1) | CN101085697A (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10267984B2 (en) | 2015-07-17 | 2019-04-23 | Fujikura Ltd. | Optical fiber |
JP2020072153A (ja) * | 2018-10-30 | 2020-05-07 | ファナック株式会社 | ファイバレーザ用光ファイバ、ファイバレーザ及びファイバレーザ用光ファイバの製造方法 |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100247912A1 (en) * | 2009-03-24 | 2010-09-30 | Gapontsev Valentin P | Method for Manufacturing LMA Optical Preforms and Fibers |
CN101585658A (zh) * | 2009-06-23 | 2009-11-25 | 长飞光纤光缆有限公司 | 一种光纤预制棒及其制造方法 |
US8869566B2 (en) * | 2010-08-27 | 2014-10-28 | Corning Incorporated | Soot radial pressing for optical fiber overcladding |
EP2656127B1 (en) | 2010-12-23 | 2019-02-27 | Prysmian S.p.A. | Low macrobending loss single-mode optical fibre |
CN103380091B (zh) | 2010-12-23 | 2016-08-10 | 普睿司曼股份公司 | 制造光纤玻璃预制件的方法 |
US9873629B2 (en) | 2011-06-30 | 2018-01-23 | Corning Incorporated | Methods for producing optical fiber preforms with low index trenches |
JP5342614B2 (ja) * | 2011-08-09 | 2013-11-13 | 古河電気工業株式会社 | 光ファイバ母材および光ファイバの製造方法 |
CN104049299A (zh) * | 2014-03-31 | 2014-09-17 | 江苏科信光电科技有限公司 | 弯曲不敏感单模光纤及其制作方法 |
CN108919415B (zh) * | 2018-07-19 | 2021-05-14 | 江苏南方光纤科技有限公司 | 一种低损耗单模光纤及其拉丝工艺 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60122744A (ja) * | 1983-12-07 | 1985-07-01 | Hitachi Cable Ltd | 単一モ−ドファイバの製造方法 |
JPS6343107A (ja) * | 1986-08-08 | 1988-02-24 | エィ・テイ・アンド・ティ・コーポレーション | 光ファイバ |
JP2002365464A (ja) * | 2001-04-27 | 2002-12-18 | Fitel Usa Corp | 有効面積の広い正分散光ファイバ |
JP2005509916A (ja) * | 2001-11-15 | 2005-04-14 | コーニング・インコーポレーテッド | 大容量光導波路ファイバ |
JP2005534963A (ja) * | 2002-07-31 | 2005-11-17 | コーニング・インコーポレーテッド | 大なる実効面積、低傾斜及び低ゼロ分散である非ゼロ分散シフト光ファイバ |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5917109A (en) * | 1994-12-20 | 1999-06-29 | Corning Incorporated | Method of making optical fiber having depressed index core region |
US6574994B2 (en) * | 2001-06-18 | 2003-06-10 | Corning Incorporated | Method of manufacturing multi-segmented optical fiber and preform |
US6923024B2 (en) * | 2002-05-09 | 2005-08-02 | Furukawa Electric North America | VAD manufacture of optical fiber preforms with improved deposition control |
-
2006
- 2006-03-02 US US11/366,361 patent/US20070204657A1/en not_active Abandoned
-
2007
- 2007-02-13 KR KR1020070014678A patent/KR20070090747A/ko active IP Right Grant
- 2007-03-01 CN CNA200710084673XA patent/CN101085697A/zh active Pending
- 2007-03-02 JP JP2007052305A patent/JP2007230862A/ja not_active Withdrawn
-
2008
- 2008-04-23 US US12/148,891 patent/US20080260339A1/en not_active Abandoned
-
2012
- 2012-02-23 JP JP2012036938A patent/JP2012133388A/ja active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60122744A (ja) * | 1983-12-07 | 1985-07-01 | Hitachi Cable Ltd | 単一モ−ドファイバの製造方法 |
JPS6343107A (ja) * | 1986-08-08 | 1988-02-24 | エィ・テイ・アンド・ティ・コーポレーション | 光ファイバ |
JP2002365464A (ja) * | 2001-04-27 | 2002-12-18 | Fitel Usa Corp | 有効面積の広い正分散光ファイバ |
JP2005509916A (ja) * | 2001-11-15 | 2005-04-14 | コーニング・インコーポレーテッド | 大容量光導波路ファイバ |
JP2005534963A (ja) * | 2002-07-31 | 2005-11-17 | コーニング・インコーポレーテッド | 大なる実効面積、低傾斜及び低ゼロ分散である非ゼロ分散シフト光ファイバ |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10267984B2 (en) | 2015-07-17 | 2019-04-23 | Fujikura Ltd. | Optical fiber |
JP2020072153A (ja) * | 2018-10-30 | 2020-05-07 | ファナック株式会社 | ファイバレーザ用光ファイバ、ファイバレーザ及びファイバレーザ用光ファイバの製造方法 |
US11245241B2 (en) | 2018-10-30 | 2022-02-08 | Fanuc Corporation | Optical fiber for a fiber laser, fiber laser, and production method for optical fiber for a fiber laser |
Also Published As
Publication number | Publication date |
---|---|
US20070204657A1 (en) | 2007-09-06 |
CN101085697A (zh) | 2007-12-12 |
JP2007230862A (ja) | 2007-09-13 |
US20080260339A1 (en) | 2008-10-23 |
KR20070090747A (ko) | 2007-09-06 |
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