JP4744489B2 - ハイパワー用途向け光ファイバ - Google Patents
ハイパワー用途向け光ファイバ Download PDFInfo
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- JP4744489B2 JP4744489B2 JP2007198578A JP2007198578A JP4744489B2 JP 4744489 B2 JP4744489 B2 JP 4744489B2 JP 2007198578 A JP2007198578 A JP 2007198578A JP 2007198578 A JP2007198578 A JP 2007198578A JP 4744489 B2 JP4744489 B2 JP 4744489B2
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- JP
- Japan
- Prior art keywords
- core
- refractive index
- optical fiber
- optical
- center
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- 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
- G02B6/036—Optical fibres with cladding with or without a coating core or cladding comprising multiple layers
- G02B6/03605—Highest refractive index not on central axis
- G02B6/03611—Highest index adjacent to central axis region, e.g. annular core, coaxial ring, centreline depression affecting waveguiding
-
- 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
- G02B6/02014—Effective area greater than 60 square microns in the C band, i.e. 1530-1565 nm
- G02B6/02019—Effective area greater than 90 square microns in the C band, i.e. 1530-1565 nm
-
- 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
- G02B6/032—Optical fibres with cladding with or without a coating with non solid core or cladding
-
- 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
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4296—Coupling light guides with opto-electronic elements coupling with sources of high radiant energy, e.g. high power lasers, high temperature light sources
Description
12 コアのくぼみ
21 コアの屈折率
22 屈折率の領域
24 コア中心部領域
Claims (20)
- 前記コアが、第1の屈折率を有する環状部を含み、前記環状部が、より低い屈折率を有する前記コア中心部の落ち込んだ領域を取り囲む、請求項1に記載の光ファイバ。
- 前記コア中心部の前記落ち込んだ領域の屈折率が、前記導波された信号の波長λにおける信号モードの有効屈折率n eff よりも小さい、請求項2に記載の光ファイバ。
- 前記コア中心部の前記落ち込んだ領域の幅がλ/2n(λが真空中の波長、nが前記コア中心部の屈折率)よりも大きい、請求項3に記載の光ファイバ。
- 前記コア中心部の前記落ち込んだ領域が、前記クラッドの屈折率よりも小さいか、あるいは等しい屈折率を有する、請求項2に記載の光ファイバ。
- 前記コア中心部の前記落ち込んだ領域が空隙を含む、請求項2の光ファイバ。
- 前記環状部と前記コア中心部の屈折率が、前記環状部が前記光パワーの50%以上を搬送するように選択される、請求項6に記載の光ファイバ。
- 光ファイバシステムであって、
(a)1MWより大きい光パワーを導波し、コアおよびクラッドを含む光ファイバを含み、信号モードが、自己収束に対するバルク材料臨界パワー閾値より低いすべての光パワーで測定される300μm2より大きい有効断面積と、
(b)前記光ファイバに結合された光信号源を含み、前記光信号源は、前記光ファイバ内のどこであってもλ2/(4πn0n2)(λが真空中での波長、n0が乱れのない(線形の)屈折率、n2がm2/Wの単位で表される非線形屈折率)より大きいピーク光パワーを有する光信号を生成する、光ファイバシステム。 - 前記コアが、より低い屈折率を有する前記コア中心部の落ち込んだ領域を取り囲む第1の屈折率を有する環状部を含む、請求項8に記載の光ファイバシステム。
- 前記コア中心部の前記落ち込んだ領域が、前記クラッドの屈折率よりも小さいか、あるいは等しい屈折率を有する、請求項9に記載の光ファイバシステム。
- 前記コア中心部の前記落ち込んだ領域が空隙を含む、請求項9に記載の光ファイバシステム。
- 前記コアが、より低い屈折率を有する前記コア中心部の落ち込んだ領域を取り囲む第1の屈折率を有する環状部を含む、請求項12に記載の方法。
- 前記コア中心部の前記落ち込んだ領域が、前記クラッドの屈折率よりも小さいか、あるいは等しい屈折率を有する、請求項13に記載の方法。
- 前記コア中心部の前記落ち込んだ領域が空隙を含む、請求項13に記載の方法。
- 前記環状部が前記光パワーの50%以上を搬送する、請求項15に記載の方法。
- 前記コアが、より低い屈折率を有する前記コア中心部の落ち込んだ領域を取り囲む第1の屈折率を有する環状部を含む、請求項17に記載の光ファイバシステム。
- 前記コア中心部の前記落ち込んだ領域が、前記クラッドの屈折率よりも小さいか、あるいは等しい屈折率を有する、請求項18に記載の光ファイバシステム。
- 前記コア中心部の前記落ち込んだ領域が空隙からなる、請求項18に記載の光ファイバシステム。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/497223 | 2006-08-01 | ||
US11/497,223 US7356232B1 (en) | 2006-08-01 | 2006-08-01 | Optical fibers for high power applications |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2008040495A JP2008040495A (ja) | 2008-02-21 |
JP4744489B2 true JP4744489B2 (ja) | 2011-08-10 |
Family
ID=38716257
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007198578A Expired - Fee Related JP4744489B2 (ja) | 2006-08-01 | 2007-07-31 | ハイパワー用途向け光ファイバ |
Country Status (4)
Country | Link |
---|---|
US (1) | US7356232B1 (ja) |
EP (1) | EP1884808B1 (ja) |
JP (1) | JP4744489B2 (ja) |
CN (1) | CN101173997B (ja) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8103142B2 (en) * | 2007-02-05 | 2012-01-24 | Ofs Fitel, Llc | Preventing dielectric breakdown in optical fibers |
CN102289031B (zh) * | 2011-06-16 | 2014-03-12 | 清华大学 | 提高光纤自聚焦阈值功率的方法及光纤 |
US9158066B2 (en) * | 2011-12-14 | 2015-10-13 | Ofs Fitel, Llc | Bend compensated filter fiber |
US9442246B2 (en) * | 2013-10-14 | 2016-09-13 | Futurewei Technologies, Inc. | System and method for optical fiber |
CN107111051A (zh) * | 2014-10-20 | 2017-08-29 | 可利雷斯股份有限公司 | 光学组件和用于产生这样的光学组件的方法 |
JP6335949B2 (ja) * | 2016-02-12 | 2018-05-30 | 株式会社フジクラ | マルチコアファイバ |
CN106707408A (zh) * | 2017-03-28 | 2017-05-24 | 中山大学 | 一种基于环形结构纤芯的折射率渐变型光纤 |
CN106950644B (zh) * | 2017-05-03 | 2019-07-23 | 华中科技大学 | 一种弱导环形结构光纤 |
EP3636607B1 (de) * | 2018-10-09 | 2021-01-13 | Heraeus Quarzglas GmbH & Co. KG | Verfahren zur herstellung eines kapillarrohres |
CN109683234A (zh) * | 2019-01-14 | 2019-04-26 | 北京交通大学 | 一种弱模间耦合少模光纤 |
CN110398802B (zh) * | 2019-08-01 | 2021-01-29 | 中国工程物理研究院激光聚变研究中心 | 一种光纤制作方法 |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS5013056A (ja) * | 1973-06-04 | 1975-02-10 | ||
US6018533A (en) * | 1995-04-21 | 2000-01-25 | Ceramoptec Industries, Inc. | Optical fiber and integrated optic lasers with enhanced output power |
JPH09304640A (ja) * | 1996-02-12 | 1997-11-28 | Corning Inc | 大きい実効面積を有する単一モード光導波路 |
AU715435B2 (en) * | 1996-02-12 | 2000-02-03 | Corning Incorporated | Single mode optical waveguide having large effective area |
US5781684A (en) * | 1996-12-20 | 1998-07-14 | Corning Incorporated | Single mode optical waveguide having large effective area |
EP0862069B1 (en) * | 1997-02-26 | 2007-04-11 | Nippon Telegraph And Telephone Corporation | Optical fiber |
JP3450696B2 (ja) * | 1997-02-26 | 2003-09-29 | 日本電信電話株式会社 | 光ファイバ |
EP1020741A4 (en) * | 1997-10-02 | 2005-12-21 | Sumitomo Electric Industries | DISPERSION SHIFTED OPTICAL FIBER |
AU748054B2 (en) * | 1997-10-29 | 2002-05-30 | Corning Incorporated | Waveguide profile for large effective area |
GB9814526D0 (en) * | 1998-07-03 | 1998-09-02 | Univ Southampton | Optical fibre and optical fibre device |
US6751388B2 (en) * | 1999-01-13 | 2004-06-15 | The Board Of Trustees Of The Leland Stanford Junior University | Fiber lasers having a complex-valued Vc-parameter for gain-guiding |
WO2000051269A1 (en) * | 1999-02-23 | 2000-08-31 | Lasercomm, Inc. | High order spatial mode optical fiber |
JP2003517626A (ja) * | 1999-03-12 | 2003-05-27 | コーニング・インコーポレーテッド | 大なる実効断面積を有する導波路ファイバ |
JP2001051146A (ja) * | 1999-08-12 | 2001-02-23 | Fujikura Ltd | 分散シフト光ファイバ |
FR2822242B1 (fr) * | 2001-03-16 | 2003-08-15 | Cit Alcatel | Fibre optique photonique a forte surface effective |
JP2004012685A (ja) * | 2002-06-05 | 2004-01-15 | Furukawa Electric Co Ltd:The | 正分散光ファイバ、それを用いた光伝送路 |
US20040247272A1 (en) * | 2003-06-03 | 2004-12-09 | The Regents Of The University Of California | Flattened mode cylindrical and ribbon fibers and amplifiers |
US7171074B2 (en) * | 2004-11-16 | 2007-01-30 | Furakawa Electric North America Inc. | Large mode area fibers using higher order modes |
US7130514B1 (en) * | 2005-06-15 | 2006-10-31 | Corning Incorporated | High SBS threshold optical fiber |
EP1811616B1 (en) * | 2005-12-16 | 2017-01-04 | OFS Fitel, LLC | Rare-earth-doped, large-mode-area, multimode, hybrid optical fibers and devices using the same |
-
2006
- 2006-08-01 US US11/497,223 patent/US7356232B1/en active Active
-
2007
- 2007-06-01 EP EP07010903.8A patent/EP1884808B1/en not_active Not-in-force
- 2007-07-09 CN CN200710128641.5A patent/CN101173997B/zh not_active Expired - Fee Related
- 2007-07-31 JP JP2007198578A patent/JP4744489B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP1884808B1 (en) | 2013-12-25 |
EP1884808A3 (en) | 2011-04-20 |
EP1884808A2 (en) | 2008-02-06 |
US7356232B1 (en) | 2008-04-08 |
CN101173997A (zh) | 2008-05-07 |
US20080069506A1 (en) | 2008-03-20 |
JP2008040495A (ja) | 2008-02-21 |
CN101173997B (zh) | 2013-06-05 |
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