JP2012247780A - シングルモード光ファイバ - Google Patents
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- 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
- G02B6/0365—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 - - +
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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
- 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]
- C03B37/01413—Reactant delivery systems
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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
- C03B37/014—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
- C03B37/01807—Reactant delivery systems, e.g. reactant deposition burners
-
- 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
- C03B37/01861—Means for changing or stabilising the diameter or form of tubes or rods
-
- 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
-
- 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
- G02B6/03666—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 - + - +
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2201/00—Type of glass produced
- C03B2201/02—Pure silica glass, e.g. pure fused quartz
-
- 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
-
- 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 - +
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Abstract
【解決手段】シングルモード光ファイバは、中心から周囲に、コア、少なくとも第1と第2の陥没クラッド、及び外側クラッドを有する。コアは、3.5μm〜5.5μmの半径(Rco)と、0〜3x10−3の外側クラッドとの屈折率差(Dnco−Dnout)とを有し、第1の陥没クラッドは、9μm〜15μmの半径(Rcl1)と、5.5x10−3〜−2.5x10−3の外側クラッドとの屈折率差(Dncl1−Dnout)とを有し、第2の陥没クラッドは、38μm〜42μmの半径(Rcl2)と、−0.5x10−3〜0.5x10−3の第1の陥没クラッドとの屈折率差(Dncl2−Dncl1)とを有し、外側クラッドは、61.5μm〜63.5μmの半径を有する。
【選択図】図2
Description
Claims (15)
- 中心から周囲に、コアと、少なくとも第1と第2の陥没クラッドと、外側クラッドと、を有するシングルモード光ファイバであって、
前記コアは、3.5μm〜5.5μmの半径(Rco)と、0〜3x10−3の外側クラッドとの屈折率差(Dnco−Dnout)を有し、
前記第1の陥没クラッドは、9μm〜15μmの半径(Rcl1)と、5.5x10−3〜−2.5x10−3の外側クラッドとの屈折率差(Dncl1−Dnout)を有し、
前記第2の陥没クラッドは、38μm〜42μmの半径(Rcl2)と、−0.5x10−3〜0.5x10−3の第1の陥没クラッドとの屈折率差(Dncl2−Dncl1)を有し、
前記外側クラッドは、61.5μm〜63.5μmの半径を有するシングルモード光ファイバ。 - 前記シングルモード光ファイバは、更に、前記第1と第2の陥没クラッドの間に配置された第3の陥没クラッドを有し、
前記第3の陥没クラッドは、15μm〜25μmの半径(Rcl3)と、−0.5x10−3〜0.5x10−3の前記第1の陥没クラッドとの屈折率差(Dncl3−Dncl1)と、−0.5x10−3〜0.5x10−3の前記第2の陥没クラッドとの屈折率差(Dncl3−Dncl2)とを有する、請求項1に記載のシングルモード光ファイバ。 - 前記コアが、非ドープ・シリカで作成された、請求項1又は2に記載のシングルモード光ファイバ。
- 前記外側クラッドが、非ドープ・シリカで作成された、請求項1〜3のいずれかに記載のシングルモード光ファイバ。
- 前記陥没クラッドがそれぞれ、フッ素ドープ・シリカで作成された、請求項1〜4のいずれかに記載のシングルモード光ファイバ。
- 1550nmの波長で0.18dB/km未満の減衰を有する、請求項1〜5のいずれかに記載のシングルモード光ファイバ。
- 1383nmの波長で0.35dB/km未満の減衰を有する、請求項1〜6のいずれかに記載のシングルモード光ファイバ。
- 1383nmの波長で0.32dB/km未満の減衰を有する、請求項1〜7のいずれかに記載のシングルモード光ファイバ。
- 請求項1〜8のいずれかの特徴を有するシングルモード光ファイバを製造する方法であって、
付着管を提供する段階と、
前記付着管の内側に層付着を行って前記コアと前記第1の陥没クラッドを構成する段階と、
前記付着管を完全に取り除く段階と、
前記第2の陥没クラッドを提供する段階と、
前記外側クラッドを提供し、それにより光学プリフォームを提供する段階と、
前記光学プリフォームからシングルモード光ファイバを線引きする段階とを含む方法。 - 前記付着管が、非ドープ石英で作成された、請求項9に記載の方法。
- 前記付着管を除去する段階は、化学的エッチング、火炎研磨、粉砕、研磨、又はこれらの組み合わせによって行われる、請求項9又は10に記載の方法。
- 請求項2の特徴を有するシングルモード光ファイバを製造する方法であって、
フッ素ドープ・シリカで作成された付着管を提供する段階と、
前記付着管の内側に層付着を行って前記コアと前記第1の陥没クラッドを構成する段階と、
第3の陥没クラッドを構成する付着管の周囲に前記第2の陥没クラッドを提供する段階と、
前記外側クラッドを提供し、それにより光学プリフォームを提供する段階と、
前記光学プリフォームからシングルモード光ファイバを引き出す段階とを含む方法。 - 前記第2の陥没クラッドは、
ドープ管によるスリーブ化、ドープ・シリカによるオーバークラッド化、ドープ・シリカによる外部蒸着のうちの1つによって作成された、請求項9〜12のいずれかに記載の方法。 - 請求項1〜8のいずれかの特徴を有するシングルモード光ファイバを製造する方法であって、
外部蒸着によってコア・ロッドを提供する段階と、
少なくとも2つの連続した陥没クラッドを提供する段階と、
前記外側クラッドを提供し、それにより光学プリフォームを提供する段階と、
前記光学プリフォームからシングルモード光ファイバを線引きする段階とを含む方法。 - 前記連続した陥没クラッドはそれぞれ、
ドープ管によるスリーブ化、ドープ・シリカによるオーバークラッド化、ドープ・シリカによる外部蒸着のうちの1つによって作成された、請求項14に記載の方法。
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EP11305654.3 | 2011-05-27 | ||
EP11305654.3A EP2527893B1 (en) | 2011-05-27 | 2011-05-27 | Single mode optical fiber |
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JP2012247780A true JP2012247780A (ja) | 2012-12-13 |
JP2012247780A5 JP2012247780A5 (ja) | 2014-03-13 |
JP6008575B2 JP6008575B2 (ja) | 2016-10-19 |
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US (1) | US8798423B2 (ja) |
EP (1) | EP2527893B1 (ja) |
JP (1) | JP6008575B2 (ja) |
CN (1) | CN102798927B (ja) |
AR (1) | AR086566A1 (ja) |
AU (1) | AU2012203014B2 (ja) |
BR (1) | BR102012012455B1 (ja) |
DK (1) | DK2527893T3 (ja) |
ES (1) | ES2438173T3 (ja) |
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JP2016527169A (ja) * | 2013-07-01 | 2016-09-08 | ドラカ・コムテツク・ベー・ベー | 基材管の除去を伴うプラズマ蒸着工程 |
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CN102798927A (zh) | 2012-11-28 |
BR102012012455A2 (pt) | 2013-11-05 |
US20120301093A1 (en) | 2012-11-29 |
AR086566A1 (es) | 2014-01-08 |
ES2438173T3 (es) | 2014-01-16 |
BR102012012455B1 (pt) | 2020-03-10 |
CN102798927B (zh) | 2016-04-27 |
AU2012203014A1 (en) | 2012-12-13 |
AU2012203014B2 (en) | 2013-12-05 |
US8798423B2 (en) | 2014-08-05 |
EP2527893A1 (en) | 2012-11-28 |
EP2527893B1 (en) | 2013-09-04 |
DK2527893T3 (da) | 2013-12-16 |
JP6008575B2 (ja) | 2016-10-19 |
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