JP7371062B2 - 光ファイバ - Google Patents
光ファイバ Download PDFInfo
- Publication number
- JP7371062B2 JP7371062B2 JP2021110724A JP2021110724A JP7371062B2 JP 7371062 B2 JP7371062 B2 JP 7371062B2 JP 2021110724 A JP2021110724 A JP 2021110724A JP 2021110724 A JP2021110724 A JP 2021110724A JP 7371062 B2 JP7371062 B2 JP 7371062B2
- Authority
- JP
- Japan
- Prior art keywords
- optical fiber
- diameter
- core
- trench
- refractive index
- 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.)
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- 239000013307 optical fiber Substances 0.000 title claims description 107
- 238000005253 cladding Methods 0.000 claims description 31
- 239000006185 dispersion Substances 0.000 claims description 26
- 238000005452 bending Methods 0.000 claims description 11
- 239000011521 glass Substances 0.000 claims description 8
- 239000000835 fiber Substances 0.000 description 36
- 238000010586 diagram Methods 0.000 description 24
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 11
- 238000004364 calculation method Methods 0.000 description 11
- 238000004088 simulation Methods 0.000 description 11
- 230000003287 optical effect Effects 0.000 description 10
- 239000011248 coating agent Substances 0.000 description 8
- 238000000576 coating method Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 230000004048 modification Effects 0.000 description 7
- 238000012986 modification Methods 0.000 description 7
- 238000013461 design Methods 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 235000012239 silicon dioxide Nutrition 0.000 description 5
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 239000002019 doping agent Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- 239000005062 Polybutadiene Substances 0.000 description 1
- 238000003848 UV Light-Curing Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- UHESRSKEBRADOO-UHFFFAOYSA-N ethyl carbamate;prop-2-enoic acid Chemical compound OC(=O)C=C.CCOC(N)=O UHESRSKEBRADOO-UHFFFAOYSA-N 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- KCTAWXVAICEBSD-UHFFFAOYSA-N prop-2-enoyloxy prop-2-eneperoxoate Chemical compound C=CC(=O)OOOC(=O)C=C KCTAWXVAICEBSD-UHFFFAOYSA-N 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
Images
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
- G02B6/036—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
- G02B6/03633—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 - -
-
- 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
-
- 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
- G02B6/02214—Optical fibres with cladding with or without a coating tailored to obtain the desired dispersion, e.g. dispersion shifted, dispersion flattened
-
- 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 - - +
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
Description
図1は、実施形態1に係る光ファイバの模式的断面図である。光ファイバ10は、光ファイバ10の略中心に位置するコア部11と、コア部11の外周に位置するクラッド部12とを備えている。クラッド部12は、コア部11の外周に隣接するように取り囲む隣接領域12aと、隣接領域12aの外周に位置し、隣接領域12aの外周に隣接するように取り囲む非隣接領域12bとを備えている。すなわち、コア部11と非隣接領域12bとの間に隣接領域12aが介在する。
実施形態2に係る光ファイバは、実施形態1に係る光ファイバ10と同様に、石英系ガラスからなるコア部と、石英系ガラスからなるクラッド部とを備えており、クラッド部は、隣接領域と非隣接領域とを備えている。また、クラッド部の外周を覆うようにコーティングが形成されている。
このように、トレンチ位置についてb/aが2倍以上の場合に、(c-b)/aが0.2~1、すなわち、(c-b)がaの0.2倍~1倍であることが好ましい。また、Δ2は、-0.4%以下であることが好ましい。
11 コア部
12 クラッド部
12a 隣接領域
12b 非隣接領域
Claims (5)
- ガラスからなるコア部と、
前記コア部の外周に位置し、前記コア部の屈折率よりも低い屈折率を有するガラスからなるクラッド部と、を備え、
ステップ型の屈折率プロファイルを有し、
前記クラッド部の外径は88μm以上100μm未満であり、前記クラッド部に対する前記コア部の比屈折率差が0.33%~0.34%かつ前記コア部のコア径が8μm~9μmである、または、前記クラッド部の外径は80μm以上100μm未満であり、前記クラッド部に対する前記コア部の比屈折率差が0.37%~0.39%かつ前記コア部のコア径が7μm~9μmであり、
波長1310nmにおけるモードフィールド径が8.6μm~9.5μmであり、
波長1625nmにおいて0.001dB/km以下のリーケージ損失であることを特徴とする光ファイバ。 - 直径60mmで曲げた場合の波長1550nmにおける曲げ損失が5.3×10-3dB/m以下であることを特徴とする請求項1に記載の光ファイバ。
- ゼロ分散波長が1300nm~1324nmであり、前記ゼロ分散波長での分散スロープが0.092ps/nm2/km以下であ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。
- ケーブルカットオフ波長が1260nm以下であることを特徴とする請求項1~3のいずれか一つに記載の光ファイバ。
- ケーブルカットオフ波長が1530nm以下であることを特徴とする請求項1~3のいずれか一つに記載の光ファイバ。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2021110724A JP7371062B2 (ja) | 2018-03-08 | 2021-07-02 | 光ファイバ |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018041711A JP7214352B2 (ja) | 2018-03-08 | 2018-03-08 | 光ファイバ |
JP2021110724A JP7371062B2 (ja) | 2018-03-08 | 2021-07-02 | 光ファイバ |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2018041711A Division JP7214352B2 (ja) | 2018-03-08 | 2018-03-08 | 光ファイバ |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2021152684A JP2021152684A (ja) | 2021-09-30 |
JP7371062B2 true JP7371062B2 (ja) | 2023-10-30 |
Family
ID=67846172
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2018041711A Active JP7214352B2 (ja) | 2018-03-08 | 2018-03-08 | 光ファイバ |
JP2021110724A Active JP7371062B2 (ja) | 2018-03-08 | 2021-07-02 | 光ファイバ |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2018041711A Active JP7214352B2 (ja) | 2018-03-08 | 2018-03-08 | 光ファイバ |
Country Status (4)
Country | Link |
---|---|
US (3) | US11314017B2 (ja) |
EP (1) | EP3764133A4 (ja) |
JP (2) | JP7214352B2 (ja) |
WO (1) | WO2019172079A1 (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7214352B2 (ja) | 2018-03-08 | 2023-01-30 | 古河電気工業株式会社 | 光ファイバ |
WO2020162406A1 (ja) * | 2019-02-05 | 2020-08-13 | 古河電気工業株式会社 | 光ファイバ |
JP2020140079A (ja) * | 2019-02-28 | 2020-09-03 | 住友電気工業株式会社 | 光ファイバ |
US11860406B2 (en) | 2019-11-08 | 2024-01-02 | Fujikura Ltd. | Optical fiber |
EP3868728A4 (en) | 2019-11-08 | 2022-03-09 | Fujikura Ltd. | OPTICAL FIBER |
EP4130819A4 (en) * | 2020-03-27 | 2024-03-20 | Furukawa Electric Co Ltd | OPTICAL FIBER |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005012967A1 (ja) | 2003-08-04 | 2005-02-10 | Sumitomo Electric Industries, Ltd. | 光ファイバ |
JP2006154713A (ja) | 2004-11-05 | 2006-06-15 | Fujikura Ltd | シングルモード光ファイバ及び伝送システム並びに波長多重伝送システム |
US20080124028A1 (en) | 2006-11-29 | 2008-05-29 | Scott Robertson Bickham | Low bend loss quasi-single-mode optical fiber and optical fiber line |
JP2015045704A (ja) | 2013-08-27 | 2015-03-12 | 日本電信電話株式会社 | 光ファイバ |
JP2019158941A (ja) | 2018-03-08 | 2019-09-19 | 古河電気工業株式会社 | 光ファイバ |
Family Cites Families (20)
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US7187833B2 (en) * | 2004-04-29 | 2007-03-06 | Corning Incorporated | Low attenuation large effective area optical fiber |
JP4444177B2 (ja) * | 2004-08-11 | 2010-03-31 | 古河電気工業株式会社 | 光ファイバ、光ファイバテープおよび光インターコネクションシステム |
JP2008058663A (ja) * | 2006-08-31 | 2008-03-13 | Furukawa Electric Co Ltd:The | 光ファイバおよび光ファイバテープならびに光インターコネクションシステム |
US7620282B2 (en) * | 2006-08-31 | 2009-11-17 | Corning Incorporated | Low bend loss single mode optical fiber |
JP2008058664A (ja) * | 2006-08-31 | 2008-03-13 | Furukawa Electric Co Ltd:The | 光ファイバおよび光ファイバテープならびに光インターコネクションシステム |
JP2010520496A (ja) * | 2007-02-28 | 2010-06-10 | コーニング インコーポレイテッド | 広有効面積光ファイバー |
US7844155B2 (en) * | 2007-05-07 | 2010-11-30 | Corning Incorporated | Optical fiber containing alkali metal oxide |
JP4398491B2 (ja) * | 2007-06-27 | 2010-01-13 | 日本電信電話株式会社 | 光ファイバ |
CN101598834B (zh) * | 2009-06-26 | 2011-01-19 | 长飞光纤光缆有限公司 | 一种单模光纤及其制造方法 |
US8385701B2 (en) * | 2009-09-11 | 2013-02-26 | Corning Incorporated | Low bend loss optical fiber |
US8737793B2 (en) * | 2010-03-16 | 2014-05-27 | Furukawa Electric Co., Ltd. | Multi-core optical fiber and method of manufacturing the same |
EP2369379B1 (en) * | 2010-03-17 | 2015-05-06 | Draka Comteq B.V. | Fibre optique monomode ayant des pertes par courbures réduites |
JP2012212115A (ja) * | 2011-03-23 | 2012-11-01 | Sumitomo Electric Ind Ltd | 光ファイバ、光ファイバコードおよび光ファイバケーブル |
EP2503368A1 (en) * | 2011-03-24 | 2012-09-26 | Draka Comteq B.V. | Multimode optical fiber with improved bend resistance |
US8693834B2 (en) * | 2011-08-15 | 2014-04-08 | Corning Incorporated | Few mode optical fibers for mode division multiplexing |
BR112014006106A2 (pt) * | 2011-09-16 | 2017-04-11 | Corning Inc | fibra ótica e sistema de transmissão ótica de multiplexação de divisão de modo |
JP2013068747A (ja) * | 2011-09-21 | 2013-04-18 | Sumitomo Electric Ind Ltd | 光伝送路 |
US8995803B2 (en) * | 2012-02-19 | 2015-03-31 | Corning Incorporated | Mode delay managed few moded optical fiber link |
US8904326B2 (en) * | 2012-06-29 | 2014-12-02 | Taiwan Semiconductor Manufacturing Company, Ltd. | Semiconductor device design method, system and computer program product |
CN106796323B (zh) * | 2015-05-27 | 2020-11-06 | 株式会社藤仓 | 光纤 |
-
2018
- 2018-03-08 JP JP2018041711A patent/JP7214352B2/ja active Active
-
2019
- 2019-02-28 EP EP19764150.9A patent/EP3764133A4/en active Pending
- 2019-02-28 WO PCT/JP2019/007869 patent/WO2019172079A1/ja active Application Filing
-
2020
- 2020-09-03 US US17/011,665 patent/US11314017B2/en active Active
-
2021
- 2021-07-02 JP JP2021110724A patent/JP7371062B2/ja active Active
-
2022
- 2022-03-18 US US17/655,486 patent/US11709313B2/en active Active
-
2023
- 2023-06-01 US US18/327,503 patent/US20230324606A1/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005012967A1 (ja) | 2003-08-04 | 2005-02-10 | Sumitomo Electric Industries, Ltd. | 光ファイバ |
JP2006154713A (ja) | 2004-11-05 | 2006-06-15 | Fujikura Ltd | シングルモード光ファイバ及び伝送システム並びに波長多重伝送システム |
US20080124028A1 (en) | 2006-11-29 | 2008-05-29 | Scott Robertson Bickham | Low bend loss quasi-single-mode optical fiber and optical fiber line |
JP2015045704A (ja) | 2013-08-27 | 2015-03-12 | 日本電信電話株式会社 | 光ファイバ |
JP2019158941A (ja) | 2018-03-08 | 2019-09-19 | 古河電気工業株式会社 | 光ファイバ |
Also Published As
Publication number | Publication date |
---|---|
JP2019158941A (ja) | 2019-09-19 |
EP3764133A1 (en) | 2021-01-13 |
US20230324606A1 (en) | 2023-10-12 |
US11314017B2 (en) | 2022-04-26 |
US20200400882A1 (en) | 2020-12-24 |
JP7214352B2 (ja) | 2023-01-30 |
WO2019172079A1 (ja) | 2019-09-12 |
US11709313B2 (en) | 2023-07-25 |
JP2021152684A (ja) | 2021-09-30 |
EP3764133A4 (en) | 2021-11-10 |
US20220206215A1 (en) | 2022-06-30 |
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