JPWO2018159146A1 - 光ファイバ - Google Patents
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- JPWO2018159146A1 JPWO2018159146A1 JP2019502502A JP2019502502A JPWO2018159146A1 JP WO2018159146 A1 JPWO2018159146 A1 JP WO2018159146A1 JP 2019502502 A JP2019502502 A JP 2019502502A JP 2019502502 A JP2019502502 A JP 2019502502A JP WO2018159146 A1 JPWO2018159146 A1 JP WO2018159146A1
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- 238000000576 coating method Methods 0.000 claims abstract description 172
- 239000011248 coating agent Substances 0.000 claims abstract description 171
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- 238000005253 cladding Methods 0.000 claims description 51
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- 238000011065 in-situ storage Methods 0.000 claims description 22
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- 229910005793 GeO 2 Inorganic materials 0.000 claims description 12
- 238000012360 testing method Methods 0.000 claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 7
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Images
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
- G02B6/02395—Glass optical fibre with a protective coating, e.g. two layer polymer coating deposited directly on a silica cladding surface during fibre manufacture
-
- 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
- G02B6/02004—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
- G02B6/02004—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
-
- 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
- G02B6/02004—Optical fibres with cladding with or without a coating characterised by the core effective area or mode field radius
- G02B6/02028—Small effective area or mode field radius, e.g. for allowing nonlinear effects
-
- 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
- G02B6/02—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
- G02B6/036—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
- G02B6/036—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
- 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 - - +
-
- 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
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
-
- 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
- G02B6/03627—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 - +
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Surface Treatment Of Glass Fibres Or Filaments (AREA)
Abstract
Description
最初に本願発明の実施形態の内容をそれぞれ個別に列挙して説明する。
(6)本実施形態の一態様として、クラッドは、コアに隣接した状態でファイバ軸に沿って延びる内側クラッドと、該内側クラッドを包囲した状態で前記ファイバ軸に沿って延びる外側クラッドと、を含んでもよい。この場合、外側クラッドはコアより低い屈折率を有し、内側クラッドは外側クラッドより低い屈折率を有するのが好ましい。
以下、本実施形態に係る光ファイバの具体的な構造を、添付図面を参照しながら詳細に説明する。なお、本発明はこれらの例示に限定されるものではなく、請求の範囲によって示され、請求の範囲と均等の意味および範囲内での全ての変更が含まれることが意図される。また、図面の説明において同一の要素には同一符号を付して重複する説明を省略する。
Claims (8)
- ファイバ軸に沿って延びた、シリカガラスからなるコアと、
前記コアを包囲した状態で前記ファイバ軸に沿って延びた、シリカガラスからなるクラッドであって、前記コアより低い屈折率を有するとともに、前記ファイバ軸に直交する断面上において80μm以上130μm以下の外径を有するクラッドと、
前記クラッドを包囲した状態で前記ファイバ軸に沿って延びた、紫外線硬化性樹脂からなる一次被覆と、
前記一次被覆を包囲した状態で前記ファイバ軸に沿って延びた、前記一次被覆より高い弾性を有する紫外線硬化性樹脂からなる二次被覆であって、前記断面上において180μm以上210μm以下の外径を有る二次被覆と、
を備え、
波長1550nmにおいて10μm以上13μm以下のモードフィールド径と、
1260nmより長いケーブルカットオフ波長と、
波長1550nmにおいて0.6dB/km以下のマイクロベンドロスであって、IEC TR62221に規定されるメッシュボビン試験により測定されるマイクロベンドロスを有する、
光ファイバ。 - 前記断面上において前前記一次被覆の厚さが15μm以上50μm以下であり、
前記断面上において前記二次被覆の厚さが10μm以上40μm以下である、
請求項1に記載の光ファイバ。 - 前記一次被覆のin situ弾性率が0.05MPa以上0.7MPa以下であり、
前記二次被覆のヤング率が700MPa以上1200MPa以下である、
請求項1または2に記載の光ファイバ。 - 前記一次被覆のin situ弾性率が0.1MPa以上0.3MPa以下であり、
前記二次被覆のヤング率が900MPa以上1200MPa以下である、
請求項1〜3の何れか一項に記載の光ファイバ。 - 前記コアが実質的にGeO2を含まず、
前記コアに含まれる遷移金属不純物の濃度がゼロまたは1mol ppb以下であり、
当該光ファイバが波長1550nmにおいて0.17dB/kmより低い伝送損失を有する、
請求項1〜4の何れか一項に記載の光ファイバ。 - 前記断面上において前記クラッドの外径が124μm以上126μm以下であり、
前記断面上において前記一次被覆の外径が156μm以上180μm以下であり、
前記断面上において前記一次被覆の厚さが前記二次被覆の厚さより厚い、
請求項1〜5の何れか一項に記載の光ファイバ。 - 前記クラッドが、前記コアに隣接した状態で前記ファイバ軸に沿って延びる内側クラッドと、前記内側クラッドを包囲した状態で前記ファイバ軸に沿って延びる外側クラッドと、を含み、
前記外側クラッドが前記コアより低い屈折率を有し、
前記内側クラッドが前記外側クラッドより低い屈折率を有する、
請求項1〜6の何れか一項に記載の光ファイバ。 - 前記二次被覆のガラス転移温度Tgが60℃〜90℃である、請求項1〜7の何れか一項に記載の光ファイバ。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017040540 | 2017-03-03 | ||
JP2017040540 | 2017-03-03 | ||
PCT/JP2018/001556 WO2018159146A1 (ja) | 2017-03-03 | 2018-01-19 | 光ファイバ |
Publications (1)
Publication Number | Publication Date |
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JPWO2018159146A1 true JPWO2018159146A1 (ja) | 2020-01-09 |
Family
ID=63370284
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2019502502A Pending JPWO2018159146A1 (ja) | 2017-03-03 | 2018-01-19 | 光ファイバ |
Country Status (5)
Country | Link |
---|---|
US (1) | US20190384000A1 (ja) |
EP (1) | EP3591450A4 (ja) |
JP (1) | JPWO2018159146A1 (ja) |
CN (1) | CN110383130B (ja) |
WO (1) | WO2018159146A1 (ja) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
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EP3851890A4 (en) | 2018-09-13 | 2022-06-08 | Furukawa Electric Co., Ltd. | FIBER OPTIC CORE WIRE AND FIBER OPTIC CABLE |
EP3876010A4 (en) | 2018-10-30 | 2022-07-06 | Furukawa Electric Co., Ltd. | OPTICAL FIBER |
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 |
JPWO2021039914A1 (ja) * | 2019-08-30 | 2021-03-04 | ||
JPWO2021187514A1 (ja) | 2020-03-18 | 2021-09-23 | ||
US20230266556A1 (en) * | 2020-07-01 | 2023-08-24 | Fujikura Ltd. | Optical fiber unit and optical fiber unit manufacturing method |
EP4185905A1 (en) * | 2020-07-21 | 2023-05-31 | Corning Incorporated | Single-mode optical fiber with thin coating for high density cables and interconnects |
EP4276503A1 (en) * | 2021-01-05 | 2023-11-15 | Nippon Telegraph And Telephone Corporation | Optical fiber |
JP2022153101A (ja) * | 2021-03-29 | 2022-10-12 | 古河電気工業株式会社 | 光ファイバ |
DE112021005214T8 (de) * | 2021-07-29 | 2023-10-05 | Hengtong Optical Material Co., Ltd. | Faserstruktur und Verfahren zu deren Herstellung |
CN115047559B (zh) * | 2022-06-15 | 2023-04-21 | 烽火通信科技股份有限公司 | 一种多波段衰减平坦光纤 |
CN115951445B (zh) * | 2023-03-15 | 2023-05-16 | 中天科技光纤有限公司 | 抗弯曲高耐压光纤及其制备方法 |
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2018
- 2018-01-19 WO PCT/JP2018/001556 patent/WO2018159146A1/ja active Application Filing
- 2018-01-19 JP JP2019502502A patent/JPWO2018159146A1/ja active Pending
- 2018-01-19 CN CN201880015367.7A patent/CN110383130B/zh active Active
- 2018-01-19 EP EP18761969.7A patent/EP3591450A4/en active Pending
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2019
- 2019-08-23 US US16/549,111 patent/US20190384000A1/en not_active Abandoned
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JP2014530378A (ja) * | 2011-09-21 | 2014-11-17 | オーエフエスファイテル,エルエルシー | 最適化された超大面積光ファイバ |
JP2015536475A (ja) * | 2012-10-30 | 2015-12-21 | 長飛光繊光纜股▲ふん▼有限公司 | 大有効面積を有するシングルモード光ファイバ |
JP2016522428A (ja) * | 2013-04-15 | 2016-07-28 | コーニング インコーポレイテッド | 小さい直径の光ファイバ |
JP2016522440A (ja) * | 2013-05-02 | 2016-07-28 | コーニング インコーポレイテッド | 大きいモードフィールド直径および低いマイクロベンド損失を有する光ファイバ |
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US20190384000A1 (en) | 2019-12-19 |
EP3591450A4 (en) | 2020-03-04 |
CN110383130A (zh) | 2019-10-25 |
CN110383130B (zh) | 2021-06-22 |
EP3591450A1 (en) | 2020-01-08 |
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