JP2004133431A - 光ファイバ通信とその光ファイバの製造方法 - Google Patents
光ファイバ通信とその光ファイバの製造方法 Download PDFInfo
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- JP2004133431A JP2004133431A JP2003312612A JP2003312612A JP2004133431A JP 2004133431 A JP2004133431 A JP 2004133431A JP 2003312612 A JP2003312612 A JP 2003312612A JP 2003312612 A JP2003312612 A JP 2003312612A JP 2004133431 A JP2004133431 A JP 2004133431A
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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
- G02B6/02004—Optical fibres with cladding with or without a coating characterised by the core effective area or mode field radius
- G02B6/02009—Large effective area or mode field radius, e.g. to reduce nonlinear effects in single mode fibres
-
- 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
- G02B6/02214—Optical fibres with cladding with or without a coating tailored to obtain the desired dispersion, e.g. dispersion shifted, dispersion flattened
- G02B6/02219—Characterised by the wavelength dispersion properties in the silica low loss window around 1550 nm, i.e. S, C, L and U bands from 1460-1675 nm
- G02B6/02252—Negative dispersion fibres at 1550 nm
- G02B6/02261—Dispersion compensating fibres, i.e. for compensating positive dispersion of other fibres
-
- 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 - + - +
-
- 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
- G02B6/028—Optical fibres with cladding with or without a coating with core or cladding having graded refractive index
- G02B6/0281—Graded index region forming part of the central core segment, e.g. alpha profile, triangular, trapezoidal core
-
- 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
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
- G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
- G02B6/29371—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating principle based on material dispersion
- G02B6/29374—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating principle based on material dispersion in an optical light guide
- G02B6/29376—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating principle based on material dispersion in an optical light guide coupling light guides for controlling wavelength dispersion, e.g. by concatenation of two light guides having different dispersion properties
- G02B6/29377—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating principle based on material dispersion in an optical light guide coupling light guides for controlling wavelength dispersion, e.g. by concatenation of two light guides having different dispersion properties controlling dispersion around 1550 nm, i.e. S, C, L and U bands from 1460-1675 nm
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- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Communication System (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
Abstract
【解決手段】逆分散ファイバ10は、屈折率n1のドープされたコア領域11、屈折率n2のクラッド領域15、屈折率n3、n4およびn5をそれぞれ備え、コア領域11とクラッド領域15の間に形成されたトレンチ領域12、第1のバリヤ領域13及び第2のバリヤ領域14を含む。好ましい実施形態による逆分散ファイバ10は約−44ピコ秒/(ナノメートル−キロメートル)の色分散、および相対的に大きな、すなわち、例えば約30μm2を超える実効面積Aeffを、両方共に1550nmの波長で有する。
【選択図】図1A
Description
次の表は好ましい実施形態による本発明の光ファイバの領域11〜14の各々の直径ならびに領域11〜14の各々の屈折率を示している。
以下の表は、図1A〜2Bを参照して上記で検討した屈折率およびその他の特性を有する本発明の光ファイバの最適パラメータに関する中央値のリストである。
Claims (10)
- 光ファイバ通信システムであって、
少なくとも1つの光学エネルギー源、
前記少なくとも1つの光学エネルギー源に結合された少なくとも1つの正分散光ファイバ、および前記正分散光ファイバに結合された少なくとも1つの逆分散光ファイバを含む光ファイバ・ケーブルにおいて、
前記逆分散光ファイバ(10)が、
屈折率n1を有するドープされたコア領域(11)、
屈折率n2を有するクラッド領域(15)、
前記ドープされたコア領域(11)と前記クラッド領域(15)の間にあって、かつ前記ドープされたコア領域(11)に隣接し、屈折率n3を有するトレンチ領域(12)、
前記ドープされたコア領域(11)と前記クラッド領域(15)の間にあって、かつ前記トレンチ領域(12)に隣接し、屈折率n4を有する第1のバリヤ領域(13)、及び
前記ドープされたコア領域(11)と前記クラッド領域(15)の間にあって、かつ前記第1のバリヤ領域(13)に隣接し、屈折率n5を有する第2のバリヤ領域(14)を含み、
前記逆分散光ファイバ(10)が、1550ナノメートル(nm)の波長で約−48ピコ秒/(ナノメートル−キロメートル)と−38ピコ秒/(ナノメートル−キロメートル)の間の色分散を有し、
前記逆分散光ファイバ(10)が、1550nmで約0.235デシベル(dB)/キロメートル(dB/km)以下の損失中央値を有する光ファイバ・ケーブル、及び
前記少なくとも1つの光学エネルギー源から光学エネルギーを受けるために前記逆分散光ファイバ(10)に結合される少なくとも1つの受信器を含む光ファイバ通信システム。 - 前記逆分散光ファイバ(10)が、1550nmの波長で約0.0030nm−1の相対的分散勾配(RDS)を有する、請求項1に記載のシステム。
- 前記ドープされたコア領域(11)、前記クラッド領域(15)、前記トレンチ領域(12)、前記第1のバリヤ領域(13)および前記第2のバリヤ領域(14)が、約0.709%<Δ1<1%、約−0.358%<Δ2<−0.293%、約0.194%<Δ3<0.237%、および約−0.045%<Δ4<−0.037%となるように構成され、Δ1=(n1−n2)/n2、Δ2=(n3−n2)/n2、Δ3=(n4−n2)/n2、およびΔ4=(n5−n2)/n2である、請求項1に記載のシステム。
- Δ1が約0.788%、Δ2が約−0.326%、Δ3が約0.215%、およびΔ4が約−0.041%である、請求項3に記載のシステム。
- 前記逆分散光ファイバ(10)が、1550nmの波長で少なくとも約30マイクロメートル平方(μm2)の実効モード・フィールド面積、Aeffを有する、請求項1に記載のシステム。
- 前記光ファイバ・ケーブルが、互いにスプライス接続された複数の逆分散ファイバ(10)をさらに有し、スプライス接続された逆分散ファイバの間のスプライス損失が約1550nmの波長で0.15dB以下である、請求項1に記載のシステム。
- 前記正分散ファイバと前記逆分散ファイバ(10)の間のスプライス損失が約1550nmの波長で0.40dB以下である、請求項1に記載のシステム。
- 前記逆分散光ファイバ(10)が1550nmの波長で約6.4μmのモード・フィールド直径(MFD)を有する、請求項1に記載のシステム。
- 光ファイバを作製するための方法であって、
屈折率n1を有するドープされたコア領域(11)を形成する工程、
前記ドープされたコア領域(11)の周囲に屈折率n3を有するトレンチ領域(12)を形成する工程、
前記トレンチ領域(12)の周囲に屈折率n4を有する第1のバリヤ領域(13)を形成する工程、
前記第1のバリヤ領域(13)の周囲に屈折率n5を有する第2のバリヤ領域(14)を形成する工程、および
前記第2のバリヤ領域(14)の周囲に屈折率n2を有するクラッド領域(15)を形成する工程を含み、
前記ドープされたコア領域(11)、前記クラッド領域(15)、前記トレンチ領域(12)、前記第1のバリヤ領域(13)および前記第2のバリヤ領域(14)が、約0.709%<Δ1<1%、約−0.358%<Δ2<−0.293%、約0.194%<Δ3<0.237%、および約−0.045%<Δ4<−0.037%となるように構成され、Δ1=(n1−n2)/n2、Δ2=(n3−n2)/n2、Δ3=(n4−n2)/n2、およびΔ4=(n5−n2)/n2である方法。 - Δ1が約0.788%、Δ2が約−0.326%、Δ3が約0.215%、およびΔ4が約−0.041%である、請求項9に記載の方法。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/234,818 US6707976B1 (en) | 2002-09-04 | 2002-09-04 | Inverse dispersion compensating fiber |
Publications (2)
Publication Number | Publication Date |
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JP2004133431A true JP2004133431A (ja) | 2004-04-30 |
JP4005960B2 JP4005960B2 (ja) | 2007-11-14 |
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Application Number | Title | Priority Date | Filing Date |
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JP2003312612A Expired - Fee Related JP4005960B2 (ja) | 2002-09-04 | 2003-09-04 | 光ファイバ通信とその光ファイバの製造方法 |
Country Status (4)
Country | Link |
---|---|
US (1) | US6707976B1 (ja) |
EP (1) | EP1396743B1 (ja) |
JP (1) | JP4005960B2 (ja) |
DE (1) | DE60302843T2 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007140510A (ja) * | 2005-11-10 | 2007-06-07 | Draka Comteq Bv | 単一モード光ファイバ |
KR20090124990A (ko) * | 2008-05-30 | 2009-12-03 | 후루카와 일렉트릭 노쓰 아메리카 인코포레이티드 | 해저 광섬유 전송 시스템들 |
JP2016106421A (ja) * | 2011-03-01 | 2016-06-16 | オーエフエス ファイテル,エルエルシー | 高次モードファイバを用いる超短パルスのファイバデリバリーのための方法、およびシステム |
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JP2003287642A (ja) * | 2002-01-22 | 2003-10-10 | Fujikura Ltd | 光ファイバ及び光伝送路 |
US7102812B2 (en) | 2002-10-15 | 2006-09-05 | Corning Incorporated | Devices and methods for raman amplification and dispersion compensation |
US6959137B2 (en) * | 2003-06-11 | 2005-10-25 | Fitel U.S.A. Corporation | Large-effective-area inverse dispersion compensating fiber, and a transmission line incorporating the same |
US7542761B2 (en) * | 2004-10-06 | 2009-06-02 | At&T Mobility Ii Llc | Voice quality on a communication link based on customer feedback |
FR2899693B1 (fr) * | 2006-04-10 | 2008-08-22 | Draka Comteq France | Fibre optique monomode. |
US7844154B2 (en) * | 2007-05-07 | 2010-11-30 | Corning Incorporated | Optical fiber for optical power transmission |
US8107784B2 (en) * | 2007-06-15 | 2012-01-31 | Ofs Fitel, Llc | Reduced bend sensitivity and catastrophic bend loss in single mode optical fibers and method of making same |
BRPI0819166B1 (pt) | 2007-11-09 | 2019-03-06 | Draka Comteq, B.V. | Fibra óptica, e caixa óptica |
FR2930997B1 (fr) | 2008-05-06 | 2010-08-13 | Draka Comteq France Sa | Fibre optique monomode |
US7570857B1 (en) | 2008-05-08 | 2009-08-04 | Corning Incorporated | Low bend loss dispersion slope compensating optical fiber |
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-
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- 2003-05-08 DE DE60302843T patent/DE60302843T2/de not_active Expired - Lifetime
- 2003-05-08 EP EP03010402A patent/EP1396743B1/en not_active Expired - Lifetime
- 2003-09-04 JP JP2003312612A patent/JP4005960B2/ja not_active Expired - Fee Related
Cited By (6)
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JP2007140510A (ja) * | 2005-11-10 | 2007-06-07 | Draka Comteq Bv | 単一モード光ファイバ |
US8837889B2 (en) | 2005-11-10 | 2014-09-16 | Draka Comteq, B.V. | Single mode optical fiber |
KR20090124990A (ko) * | 2008-05-30 | 2009-12-03 | 후루카와 일렉트릭 노쓰 아메리카 인코포레이티드 | 해저 광섬유 전송 시스템들 |
JP2009288788A (ja) * | 2008-05-30 | 2009-12-10 | Ofs Fitel Llc | 海底用光ファイバ伝送システム |
KR101639584B1 (ko) | 2008-05-30 | 2016-07-22 | 후루카와 일렉트릭 노쓰 아메리카 인코포레이티드 | 해저 광섬유 전송 시스템들 |
JP2016106421A (ja) * | 2011-03-01 | 2016-06-16 | オーエフエス ファイテル,エルエルシー | 高次モードファイバを用いる超短パルスのファイバデリバリーのための方法、およびシステム |
Also Published As
Publication number | Publication date |
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US6707976B1 (en) | 2004-03-16 |
EP1396743B1 (en) | 2005-12-21 |
EP1396743A3 (en) | 2004-04-28 |
JP4005960B2 (ja) | 2007-11-14 |
US20040042748A1 (en) | 2004-03-04 |
EP1396743A2 (en) | 2004-03-10 |
DE60302843T2 (de) | 2006-07-13 |
DE60302843D1 (de) | 2006-01-26 |
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