JP2005530194A - デュアルバンド耐曲げ性光導波路 - Google Patents
デュアルバンド耐曲げ性光導波路 Download PDFInfo
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- JP2005530194A JP2005530194A JP2004513816A JP2004513816A JP2005530194A JP 2005530194 A JP2005530194 A JP 2005530194A JP 2004513816 A JP2004513816 A JP 2004513816A JP 2004513816 A JP2004513816 A JP 2004513816A JP 2005530194 A JP2005530194 A JP 2005530194A
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- fiber
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- core
- optical waveguide
- refractive index
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Classifications
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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
- G02B6/028—Optical fibres with cladding with or without a coating with core or cladding having graded refractive index
-
- 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
- G02B6/03655—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
-
- 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
- G02B6/02004—Optical fibres with cladding with or without a coating characterised by the core effective area or mode field radius
-
- 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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
- Optical Integrated Circuits (AREA)
- Eyeglasses (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
- Glass Compositions (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
Description
MFD 動作モードフィールド径
λ 動作波長
λc 第2モードカットオフ波長
rco コア領域の単一有効(屈折率)ステップ近似から形成されたコア半径
ric 内側クラッディング半径
W 内側クラッディング領域の単一有効ステップ近似から形成された内側クラッディング幅(ric−rco)
roc 外側クラッディング半径
nco コア領域の単一有効ステップ近似から形成されたコア屈折率
nic 内側クラッディング領域の単一のステップ近似から形成された内側クラッディング屈折率
noc 外側クラッディング屈折率
next 外部媒体屈折率
+Δ=(nco−noc)/noc
−Δ=(nic−noc)/noc
ΔTot=|(+Δ)|+|(−Δ)|
+Δ=(nco−noc)/noc
−Δ=(nic−noc)/nocおよびΔTot=|(+Δ)|+|(−Δ)|
であり、上式中、ncoがコアの有効ステップインデックスであり、nicが内側クラッディング(低下井戸または堀)の屈折率であり、nocが外側クラッディングの屈折率である。
実施例1
本発明による光ファイバーの典型的な実施態様の1つは、以下の材料の組成を有する。
コア 低濃度にドープされたケイ酸ゲルマニウムガラス(2.5モル%のGeO2)
内側クラッディング フルオロケイ酸リン(約0.1モル%のP2O5および3.4モル%のF)
外側クラッディング 溶融シリカ(100モル%)
a.)クラッド/コア径比が2.6である。
b.)0.0019の+Δ
c.)−0.0028の−Δ
d.)0.0047のΔTot
カットオフ波長=1220nm
MFD@1300nm=8.9ミクロン
MFD@1550nm=9.8ミクロン
曲げ損失(0.635cm 90°)<0.05dB@1300nm
曲げ損失(0.635cm 90°)=0.13dB@1550nm
曲げ損失(0.635cm −90°)=0.21dB@1600nm。
本発明による似た設計を有する光ファイバーの第2の試料を圧伸し、測定した。
a.)クラッド/コア径比が2.4である。
b.)0.0014の+Δ
c.)−0.0028の−Δ
d.)0.0042のΔTot
カットオフ波長=1225nm
MFD@1300nm=9.4ミクロン
MFD@1550nm=10.4ミクロン
曲げ損失(0.635cm 90°)<0.05dB@1300nm
曲げ損失(0.635cm 90°)=0.20dB@1550nm
曲げ損失(0.635cm 90°)=0.25dB@1600nm。
本発明による光ファイバーの曲げ性能を、2つの単純な、単一波長整合クラッド、整合モードフィールド径設計と比較した。
本発明による典型的な低下井戸設計を98ミクロンのガラス径に圧伸した。図4は、得られたファイバーの屈折率プロファイルを示す。前記ファイバーは、125ミクロンの外径の永久硬質ポリマー(1.0ミクロンのコア/クラッド同心性の誤差)と全径250ミクロンとなる2つの可剥性コーティングとを有した。内側可剥性コーティング層のために用いた代表的な材料には、シリコーンまたはデソライト3471−3−152A、デソライト3471−3−14、またはシン−エツOF−206などのアクリレート材料がある。外側可剥性コーティングとして使用するための代表的な材料には、デソライト3471−2−136などのアクリレートまたはウレタン−アクリレート光ファイバーコーティング材料がある。
a.)クラッド/コア径比が2.4である。
b.)0.0016の+Δ
c.)−0.0029の−Δ
d.)0.0045のΔTot
Claims (8)
- a)屈折率ncoおよび半径rcoを有するコアと、
b)屈折率nicおよび外半径ricを有する、前記コアを横方向に囲む内側クラッディングと、
c)屈折率nocを有する、前記内側クラッディングを横方向に囲む外側クラッディングと、
d)狭い低下井戸と、を含み、nco>noc>nicであり、
e)低下井戸内側クラッド半径ricの、コア半径rcoに対する比の範囲が2.4〜3.0であり、
f)0.0014〜0.0021の+Δ、
g)−0.0021〜−0.0034の−Δ、および
h)0.0043〜0.0049のΔTotを含む、光導波路。 - 単一モードデュアルバンド光ファイバーである、請求項1に記載の光導波路。
- 前記コアが10〜12マイクロメータの直径を有する、請求項1に記載の光導波路。
- 1300〜1550nmの動作波長範囲および1300nmより小さい第2モードカットオフ波長を有する、請求項1に記載の光導波路。
- 1300nmにおいて測定した時に8.8〜9.6ミクロンのMFDを有する、請求項1に記載の光導波路。
- 1550nmにおいて測定した時に9.6〜11.2ミクロンのMFDを有する、請求項1に記載の光導波路。
- 1300nmにおいて0.635cmの90度曲げで測定した時に0.05dB以下の曲げ損失を有し、1550nmにおいて0.635cmの−90度曲げで測定した時に0.2dB以下の曲げ損失を有する、請求項1に記載の光導波路。
- 請求項1に記載の光導波路を備える光デバイス。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/172,093 US6947652B2 (en) | 2002-06-14 | 2002-06-14 | Dual-band bend tolerant optical waveguide |
US10/172,093 | 2002-06-14 | ||
PCT/US2003/010284 WO2003107054A1 (en) | 2002-06-14 | 2003-04-03 | Dual-band bend tolerance optical waveguide |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005530194A true JP2005530194A (ja) | 2005-10-06 |
JP4837914B2 JP4837914B2 (ja) | 2011-12-14 |
Family
ID=29732938
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004513816A Expired - Fee Related JP4837914B2 (ja) | 2002-06-14 | 2003-04-03 | デュアルバンド耐曲げ性光導波路 |
Country Status (9)
Country | Link |
---|---|
US (1) | US6947652B2 (ja) |
EP (1) | EP1514145B1 (ja) |
JP (1) | JP4837914B2 (ja) |
KR (1) | KR100980138B1 (ja) |
AT (1) | ATE353143T1 (ja) |
AU (1) | AU2003220655A1 (ja) |
DE (1) | DE60311579D1 (ja) |
TW (1) | TWI276854B (ja) |
WO (1) | WO2003107054A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011197667A (ja) * | 2010-02-26 | 2011-10-06 | Sumitomo Electric Ind Ltd | 光ファイバ及びそれを含む光通信システム |
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US6771865B2 (en) * | 2002-03-20 | 2004-08-03 | Corning Incorporated | Low bend loss optical fiber and components made therefrom |
US20040114892A1 (en) * | 2002-12-11 | 2004-06-17 | Chiang Kin Seng | Optical fiber |
US7130516B2 (en) * | 2004-08-31 | 2006-10-31 | 3M Innovative Properties Company | Triple-band bend tolerant optical waveguide |
US7130515B2 (en) * | 2004-08-31 | 2006-10-31 | 3M Innovative Properties Company | Triple-band bend tolerant optical waveguide |
FR2893149B1 (fr) | 2005-11-10 | 2008-01-11 | Draka Comteq France | Fibre optique monomode. |
FR2899693B1 (fr) | 2006-04-10 | 2008-08-22 | Draka Comteq France | Fibre optique monomode. |
US8265441B2 (en) * | 2007-05-25 | 2012-09-11 | Baker Hughes Incorporated | Hydrogen-resistant optical fiber/grating structure suitable for use in downhole sensor applications |
US9042695B2 (en) * | 2007-10-05 | 2015-05-26 | Optacore D.O.O. Optical Fibers | Low bending loss multimode fiber transmission system |
CN102099711B (zh) | 2007-11-09 | 2014-05-14 | 德雷卡通信技术公司 | 抗微弯光纤 |
FR2930997B1 (fr) * | 2008-05-06 | 2010-08-13 | Draka Comteq France Sa | Fibre optique monomode |
CN101373238B (zh) * | 2008-08-20 | 2010-09-08 | 富通集团有限公司 | 弯曲损耗不敏感的单模光纤 |
US20100220966A1 (en) * | 2009-02-27 | 2010-09-02 | Kevin Wallace Bennett | Reliability Multimode Optical Fiber |
US9146361B2 (en) * | 2010-12-17 | 2015-09-29 | Shing-Wu Paul Tzeng | Cable with non-stripping optical fiber |
US9535211B2 (en) | 2011-12-01 | 2017-01-03 | Raytheon Company | Method and apparatus for fiber delivery of high power laser beams |
US9664869B2 (en) | 2011-12-01 | 2017-05-30 | Raytheon Company | Method and apparatus for implementing a rectangular-core laser beam-delivery fiber that provides two orthogonal transverse bending degrees of freedom |
US8983259B2 (en) | 2012-05-04 | 2015-03-17 | Raytheon Company | Multi-function beam delivery fibers and related system and method |
EP3457183B1 (en) * | 2016-05-12 | 2020-06-10 | Sumitomo Electric Industries, Ltd. | Multicore optical fiber, fiber bragg grating, and method for manufacturing a fiber bragg grating |
US20220026604A1 (en) * | 2020-07-21 | 2022-01-27 | Corning Research & Development Corporation | Single-mode optical fiber with thin coating for high density cables and interconnects |
JPWO2022085244A1 (ja) * | 2020-10-19 | 2022-04-28 | ||
US11867947B2 (en) | 2021-04-30 | 2024-01-09 | Corning Research & Development Corporation | Cable assembly having routable splice protectors |
CN114488390B (zh) * | 2022-03-21 | 2023-05-26 | 创昇光电科技(苏州)有限公司 | 渐变式中心凹陷光纤 |
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2002
- 2002-06-14 US US10/172,093 patent/US6947652B2/en not_active Expired - Lifetime
-
2003
- 2003-04-03 WO PCT/US2003/010284 patent/WO2003107054A1/en active IP Right Grant
- 2003-04-03 AT AT03716973T patent/ATE353143T1/de not_active IP Right Cessation
- 2003-04-03 AU AU2003220655A patent/AU2003220655A1/en not_active Abandoned
- 2003-04-03 EP EP03716973A patent/EP1514145B1/en not_active Expired - Lifetime
- 2003-04-03 JP JP2004513816A patent/JP4837914B2/ja not_active Expired - Fee Related
- 2003-04-03 DE DE60311579T patent/DE60311579D1/de not_active Expired - Lifetime
- 2003-04-03 KR KR1020047020250A patent/KR100980138B1/ko not_active IP Right Cessation
- 2003-05-08 TW TW092112589A patent/TWI276854B/zh not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011197667A (ja) * | 2010-02-26 | 2011-10-06 | Sumitomo Electric Ind Ltd | 光ファイバ及びそれを含む光通信システム |
Also Published As
Publication number | Publication date |
---|---|
WO2003107054A1 (en) | 2003-12-24 |
EP1514145B1 (en) | 2007-01-31 |
ATE353143T1 (de) | 2007-02-15 |
US6947652B2 (en) | 2005-09-20 |
US20030231847A1 (en) | 2003-12-18 |
JP4837914B2 (ja) | 2011-12-14 |
DE60311579D1 (de) | 2007-03-22 |
TWI276854B (en) | 2007-03-21 |
KR20050006289A (ko) | 2005-01-15 |
TW200407573A (en) | 2004-05-16 |
AU2003220655A1 (en) | 2003-12-31 |
EP1514145A1 (en) | 2005-03-16 |
KR100980138B1 (ko) | 2010-09-03 |
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