JP5588451B2 - 小径光ファイバ - Google Patents
小径光ファイバ Download PDFInfo
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- JP5588451B2 JP5588451B2 JP2011535526A JP2011535526A JP5588451B2 JP 5588451 B2 JP5588451 B2 JP 5588451B2 JP 2011535526 A JP2011535526 A JP 2011535526A JP 2011535526 A JP2011535526 A JP 2011535526A JP 5588451 B2 JP5588451 B2 JP 5588451B2
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- optical fiber
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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
- G02B6/02395—Glass optical fibre with a protective coating, e.g. two layer polymer coating deposited directly on a silica cladding surface during fibre manufacture
-
- 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
- C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
- C03C25/10—Coating
- C03C25/104—Coating to obtain optical fibres
- C03C25/106—Single coatings
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- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Surface Treatment Of Glass Fibres Or Filaments (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
Description
図3および図4は、それぞれ、標準的な市販の一次被覆(すなわち、従来の一次被覆)と、本発明に係る光ファイバの製造に用いた典型的な一次被覆の動的機械特性を示す。従来の一次被覆は、DSM Desotech社(イリノイ州、エルジン)により商品名DeSolite DP 1007として提供されるUV硬化性のウレタンアクリレートである。本発明に係る典型的な一次被覆(すなわち、本発明の光ファイバを形成するために用いられた)は、DSM Desotech社(イリノイ州、エルジン)により商品名DeSolite DP 1011として提供されるUV硬化性のウレタンアクリレートである。
採用された第1テスト方法は、当業者に公知のバスケットウィーブ(basket weave)温度サイクル手順である。このテスト手順によれば、光ファイバは、約490mN(すなわち、9mmの「lay」を備える直径300mmの石英シリンダー上に50gfの張力)でで巻かれた。50層が、ファイバからファイバへの多数のクロスオーバーを作り出すために、石英ドラム上で巻かれた。実施例2のテスト手順は、IEC TR62221、方法Dの適合する。
第2テスト法は、(1)標準的な市販の一次被覆(すなわち、従来の一次被覆)を有する光ファイバと、(2)本発明に係る典型的な一次被覆を有する光ファイバのそれぞれのマイクロベンド感度を評価するために、よりアグレッシブな環境(すなわち条件)を採用した。
(1)従来の市販の被覆を備える従来のシングルモードガラスファイバ、(2)従来の市販の被覆を備える曲げ感度の低いガラスファイバ、および(3)本発明に係る被覆(例えば、ドラカ・コムテツク社のColorLockXSブランドの被覆システム)を備える曲げ感度の低いガラスファイバ(例えば、商品名BendBrightXSとして市販されているドラカ・コムテツク社のシングルモードガラスファイバ)を含む典型的な光ファイバに関し、それぞれのマイクロベンド感度を測定した。
(1)従来の市販の被覆を備える従来のシングルモードガラスファイバ、(2)本発明に係る被覆(例えば、ドラカ・コムテツク社のColorLockXSブランドの被覆システム)を備える曲げ感度の低いガラスファイバ(例えば、商品名BendBrightXSとして市販されているドラカ・コムテツク社のシングルモードガラスファイバ)を含む典型的な光ファイバに関し、厳しいテスト条件の下でそれぞれのマイクロベンド感度を測定した。
表1(マイクロベンド感度)
(1)従来の市販の被覆を備える従来のシングルモードガラスファイバ、および(2)本発明に係る被覆(例えば、ドラカ・コムテツク社のColorLockXSブランドの被覆システム)を備える曲げ感度の低いガラスファイバ(例えば、商品名BendBrightXSとして市販されているドラカ・コムテツク社のシングルモードガラスファイバ)を含む典型的な光ファイバに関し、さらなる測定を行った。
(1)低弾性係数の一次被覆を備える改善されたシングルモードガラスファイバ(ESMF)、(2)従来の一次被覆を備える様々な曲げ感度の低いガラスファイバ(例えば、ドラカ・コムテツク社の商品名BendBrightXSで市販のシングルモードガラスファイバ)、および(3)低弾性係数の一次被覆を備える様々な曲げ感度の低いガラスファイバおよびマクロベンド耐久性ガラスファイバ(例えば、BendBrightXSおよびBendBrightの商品名で市販のドラカ・コムテツク社のシングルモードガラスファイバ)を含む典型的な光ファイバに対して、それぞれマイクロベンド感度をさらに測定した。
(1)ドラカ・コムテツク社のColorLockXSブランドの被覆システムを備える改善されたシングルモードガラスファイバ(ESMF)および(2)ドラカ・コムテツク社の改善されたColorLockXSブランドの被覆システムを備えるドラカ・コムテツク社の商品名BendBrightXSで市販のシングルモードガラスファイバを含む典型的な光ファイバに対して、IEC固定径サンドペーパドラムテスト(すなわち、IEC TR62221,方法B)に従ってそれぞれマイクロベンド感度を測定した。
表5(機械的信頼性)
Claims (15)
- ストレスに起因するマイクロベンディングを低減する被覆システムを有する光ファイバであって、
125ミクロンの直径を有し、且つITU−T G.657.A標準規格および/またはITU−T G.657.B標準規格を満たす、屈折率のトレンチを備えるガラスファイバと、
前記ガラスファイバを囲む実質的に硬化した一次被覆であって、前記実質的に硬化した一次被覆が(1)0.2MPaを超え且つ0.65MPa未満のin situ弾性係数および(2)−50℃またはそれ以下のガラス転移温度を有し、前記一次被覆が135から175ミクロンの外径を有する一次被覆層を規定する、一次被覆と、
前記一次被覆層を囲う実質的に硬化した二次被覆であって、二次被覆層を規定する二次被覆と、
を備えることを特徴とする光ファイバ。 - 前記実質的に硬化した一次被覆は、0.5MPa未満のin situ弾性係数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。
- 前記実質的に硬化した一次被覆は、0.3MPaを超えるin situ弾性係数を有することを特徴とする請求項1または2に記載の光ファイバ。
- 前記実質的に硬化した一次被覆は、−55℃またはそれ以下のガラス転移温度を有することを特徴とする請求項1から3のいずれかに記載の光ファイバ。
- 前記一次被覆層は、165ミクロン未満の外径を有することを特徴とする請求項1から4のいずれかに記載の光ファイバ。
- 前記一次被覆層は、140ミクロンを超える外径を有することを特徴とする請求項1から5のいずれかに記載の光ファイバ。
- 前記一次被覆層は、160ミクロンまたはそれ以下の外径を有し、前記二次被覆層は、230ミクロン未満の外径を有することを特徴とする請求項1から6のいずれかに記載の光ファイバ。
- インク層をさらに備え、当該光ファイバは、210ミクロンまたはそれ以下の外径を有することを特徴とする請求項1から7のいずれかに記載の光ファイバ。
- 前記二次被覆は、当該光ファイバをカラーコード化するために着色されることを特徴とする請求項1から7のいずれかに記載の光ファイバ。
- 光ファイバ引張強度分布の50パーセンタイルにおいて、ファイバ破損の引張強度が少なくとも500kpsiであることを特徴とする請求項1から9のいずれかに記載の光ファイバ。
- 当該光ファイバは、少なくとも20の動的疲労応力腐食係数(n値)を有することを特徴とする請求項10に記載の光ファイバ。
- 1550nmの波長において、当該光ファイバは、440メートルのファイバサンプルが、1,470mNで、粗面を形成するために320グリットのサンドペーパで包まれた直径300mmの石英シリンダー上に単一層に巻かれる、修正されたIEC TR62221固定形サンドペーパドラムテスト(小径光ファイバのマイクロベンド感度テスト)に従って、23℃で測定したときに、1.5dB/km未満のファイバ減衰を有することを特徴とする請求項1から10のいずれかに記載の光ファイバ。
- 請求項1から12のいずれかに記載の1つまたは複数の光ファイバを含むことを特徴とするケーブルまたはバッファチューブ。
- 請求項1から12のいずれかに記載の1つまたは複数の光ファイバの少なくとも一部を受けることを特徴とする光モジュールまたは筐体。
- 請求項1から12のいずれかに記載の1つまたは複数の光ファイバを備えることを特徴とするFTTx。
Applications Claiming Priority (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11259508P | 2008-11-07 | 2008-11-07 | |
US61/112,595 | 2008-11-07 | ||
US17799609P | 2009-05-13 | 2009-05-13 | |
US61/177,996 | 2009-05-13 | ||
US24831909P | 2009-10-02 | 2009-10-02 | |
US61/248,319 | 2009-10-02 | ||
PCT/NL2009/000214 WO2010053356A2 (en) | 2008-11-07 | 2009-11-06 | Reduced-diameter optical fiber |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2012508395A JP2012508395A (ja) | 2012-04-05 |
JP5588451B2 true JP5588451B2 (ja) | 2014-09-10 |
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ID=41510703
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2011535526A Active JP5588451B2 (ja) | 2008-11-07 | 2009-11-06 | 小径光ファイバ |
Country Status (8)
Country | Link |
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US (2) | US8600206B2 (ja) |
EP (1) | EP2344911B1 (ja) |
JP (1) | JP5588451B2 (ja) |
CN (1) | CN102272635B (ja) |
DK (1) | DK2344911T3 (ja) |
ES (1) | ES2543879T3 (ja) |
PL (1) | PL2344911T3 (ja) |
WO (1) | WO2010053356A2 (ja) |
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US11747551B2 (en) | 2019-09-30 | 2023-09-05 | Nitto Denko Corporation | Plastic optical fiber |
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Cited By (2)
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WO2016161240A1 (en) | 2015-04-01 | 2016-10-06 | Afl Telecommunications Llc | Ultra-high fiber density micro-duct cable with extreme operating performance |
US11747551B2 (en) | 2019-09-30 | 2023-09-05 | Nitto Denko Corporation | Plastic optical fiber |
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CN102272635B (zh) | 2017-04-12 |
EP2344911B1 (en) | 2015-04-29 |
EP2344911A2 (en) | 2011-07-20 |
WO2010053356A3 (en) | 2011-06-23 |
ES2543879T3 (es) | 2015-08-25 |
US8600206B2 (en) | 2013-12-03 |
DK2344911T3 (en) | 2015-07-13 |
US20140086548A1 (en) | 2014-03-27 |
US9244220B2 (en) | 2016-01-26 |
WO2010053356A2 (en) | 2010-05-14 |
US20100119202A1 (en) | 2010-05-13 |
JP2012508395A (ja) | 2012-04-05 |
PL2344911T3 (pl) | 2015-10-30 |
CN102272635A (zh) | 2011-12-07 |
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