AU1439900A - Multicore and multimode dispersion managed fibers - Google Patents

Multicore and multimode dispersion managed fibers Download PDF

Info

Publication number: AU1439900A
Authority: AU; Australia
Prior art keywords: fiber; dispersion; cores; optical; core
Prior art date: 1998-09-16
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.): Abandoned

Application number

AU14399/00A

Other languages

English (en)

Inventor

Venkata A. Bhagavatula

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Corning Inc

Original Assignee

Corning Inc

Priority date (The priority date 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 date listed.)

1998-09-16

Filing date

1999-08-10

Publication date

2000-04-03

1999-08-10 Application filed by Corning Inc filed Critical Corning Inc

2000-04-03 Publication of AU1439900A publication Critical patent/AU1439900A/en

Status Abandoned legal-status Critical Current

Links

239000006185 dispersion Substances 0.000 title claims description 230
239000000835 fiber Substances 0.000 title claims description 202
230000003287 optical effect Effects 0.000 claims description 119
230000008878 coupling Effects 0.000 claims description 58
238000010168 coupling process Methods 0.000 claims description 58
238000005859 coupling reaction Methods 0.000 claims description 58
238000005253 cladding Methods 0.000 claims description 36
230000037361 pathway Effects 0.000 claims description 35
238000000034 method Methods 0.000 claims description 20
230000007246 mechanism Effects 0.000 claims description 15
239000000463 material Substances 0.000 claims description 14
239000013307 optical fiber Substances 0.000 claims description 12
230000005540 biological transmission Effects 0.000 claims description 11
239000011521 glass Substances 0.000 claims description 11
238000004519 manufacturing process Methods 0.000 claims description 10
238000012546 transfer Methods 0.000 claims description 10
238000013459 approach Methods 0.000 claims description 8
239000004071 soot Substances 0.000 claims description 8
230000010287 polarization Effects 0.000 claims description 7
230000001902 propagating effect Effects 0.000 claims description 2
230000001747 exhibiting effect Effects 0.000 claims 5
239000011162 core material Substances 0.000 description 165
238000013461 design Methods 0.000 description 15
230000000737 periodic effect Effects 0.000 description 5
229910004298 SiO 2 Inorganic materials 0.000 description 4
238000013507 mapping Methods 0.000 description 4
239000000945 filler Substances 0.000 description 3
229910005793 GeO 2 Inorganic materials 0.000 description 2
VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
238000005452 bending Methods 0.000 description 2
230000008859 change Effects 0.000 description 2
238000011109 contamination Methods 0.000 description 2
238000009826 distribution Methods 0.000 description 2
238000005516 engineering process Methods 0.000 description 2
238000002955 isolation Methods 0.000 description 2
230000008569 process Effects 0.000 description 2
238000007740 vapor deposition Methods 0.000 description 2
229910052691 Erbium Inorganic materials 0.000 description 1
UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
229910010413 TiO 2 Inorganic materials 0.000 description 1
239000002131 composite material Substances 0.000 description 1
238000007596 consolidation process Methods 0.000 description 1
230000002939 deleterious effect Effects 0.000 description 1
UYAHIZSMUZPPFV-UHFFFAOYSA-N erbium Chemical compound [Er] UYAHIZSMUZPPFV-UHFFFAOYSA-N 0.000 description 1
229910052739 hydrogen Inorganic materials 0.000 description 1
239000001257 hydrogen Substances 0.000 description 1
230000005855 radiation Effects 0.000 description 1
230000004044 response Effects 0.000 description 1
238000000926 separation method Methods 0.000 description 1
239000000377 silicon dioxide Substances 0.000 description 1
230000003595 spectral effect Effects 0.000 description 1
239000000758 substrate Substances 0.000 description 1

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
- G02B6/028—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
- G02B6/02214—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
- G02B6/02247—Dispersion varying along the longitudinal direction, e.g. dispersion managed fibre
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/012—Manufacture of preforms for drawing fibres or filaments
- C03B37/01205—Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments
- C03B37/01211—Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments by inserting one or more rods or tubes into a tube
- C03B37/01222—Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments by inserting one or more rods or tubes into a tube for making preforms of multiple core optical 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
- 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
- G02B6/02042—Multicore optical 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
- G02B6/24—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
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2203/00—Fibre product details, e.g. structure, shape
- C03B2203/10—Internal structure or shape details
- C03B2203/22—Radial profile of refractive index, composition or softening point
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2203/00—Fibre product details, e.g. structure, shape
- C03B2203/32—Eccentric core or cladding
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2203/00—Fibre product details, e.g. structure, shape
- C03B2203/34—Plural core other than bundles, e.g. double 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
- G02B6/028—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
- 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
- G02B6/03627—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 - +
- 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
- G02B6/03644—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
- G02B6/03661—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
- G02B6/036—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
- G02B6/03683—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
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/268—Optical coupling means for modal dispersion control, e.g. concatenation of light guides having different modal dispersion properties
- 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
- G02B6/29304—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 by diffraction, e.g. grating
- G02B6/29316—Light guides comprising a diffractive element, e.g. grating in or on the light guide such that diffracted light is confined in the light guide
- G02B6/29317—Light guides of the optical fibre type

Landscapes

Physics & Mathematics (AREA)
Chemical & Material Sciences (AREA)
Dispersion Chemistry (AREA)
Optics & Photonics (AREA)
General Physics & Mathematics (AREA)
Engineering & Computer Science (AREA)
Geochemistry & Mineralogy (AREA)
Organic Chemistry (AREA)
Materials Engineering (AREA)
Manufacturing & Machinery (AREA)
Life Sciences & Earth Sciences (AREA)
General Life Sciences & Earth Sciences (AREA)
Optical Communication System (AREA)
Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
Optical Couplings Of Light Guides (AREA)

AU14399/00A 1998-09-16 1999-08-10 Multicore and multimode dispersion managed fibers Abandoned AU1439900A (en)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
US10049598P	1998-09-16	1998-09-16
US60100495		1998-09-16
PCT/US1999/018090 WO2000016131A2 (en)	1998-09-16	1999-08-10	Multicore and multimode dispersion managed fibers

Publications (1)

Publication Number	Publication Date
AU1439900A true AU1439900A (en)	2000-04-03

Family

ID=22280053

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
AU14399/00A Abandoned AU1439900A (en)	1998-09-16	1999-08-10	Multicore and multimode dispersion managed fibers

Country Status (11)

Country	Link
EP (1)	EP1114337A2 (id)
JP (1)	JP2002525645A (id)
KR (1)	KR20010088804A (id)
CN (1)	CN1359474A (id)
AU (1)	AU1439900A (id)
BR (1)	BR9913334A (id)
CA (1)	CA2344200A1 (id)
ID (1)	ID30554A (id)
TW (1)	TW454099B (id)
WO (1)	WO2000016131A2 (id)
ZA (1)	ZA995927B (id)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US6611648B2 (en)	2001-05-09	2003-08-26	Corning Incorporated	Optical fibers having cores with different propagation constants, and methods of manufacturing same
AU2002356179A1 (en)	2001-08-22	2003-03-10	Corning Incorporated	Controlled dispersion optical fiber
FR2864254B1 (fr) *	2003-12-23	2006-03-03	Cit Alcatel	Fibre optique multimode hom a gestion de dispersion
KR101050885B1 (ko) *	2003-12-26	2011-07-20	주식회사 케이티	광전송 시스템의 분산 보상 장치
CN100495093C (zh) *	2007-09-14	2009-06-03	中国科学院上海光学精密机械研究所	强耦合的多芯光纤
US8123400B2 (en) *	2008-04-16	2012-02-28	Ofs Fitel, Llc	Multi-core fiber grating sensor
EP2345915A4 (en) *	2008-10-03	2012-08-15	Nat University Corp Yokohama Nat University	UNCOPPED MULTI-CORE FIBER
JP5367726B2 (ja)	2008-12-24	2013-12-11	古河電気工業株式会社	マルチコア光ファイバ
JP5267481B2 (ja)	2010-02-18	2013-08-21	住友電気工業株式会社	マルチコア光ファイバ
JP5782502B2 (ja) *	2011-03-04	2015-09-24	株式会社フジクラ	マルチコアファイバ、及び、それを用いたマルチコアファイバの接続方法
JP2012203036A (ja) *	2011-03-23	2012-10-22	Mitsubishi Cable Ind Ltd	光伝送路
JP5351938B2 (ja) *	2011-08-17	2013-11-27	株式会社フジクラ	結合型マルチコアファイバ
JP5867076B2 (ja) *	2011-12-28	2016-02-24	住友電気工業株式会社	マルチコア光ファイバ
WO2013134575A1 (en) *	2012-03-07	2013-09-12	Ofs Fitel, Llc	Grating-based sensor
JP2014052410A (ja) *	2012-09-05	2014-03-20	Mitsubishi Cable Ind Ltd	マルチコア光ファイバ
JP6192442B2 (ja) *	2013-05-16	2017-09-06	株式会社フジクラ	結合型マルチコアファイバ
JP6421822B2 (ja) *	2014-08-22	2018-11-14	住友電気工業株式会社	光ファイバ
WO2016035883A1 (ja) *	2014-09-05	2016-03-10	古河電気工業株式会社	マルチコアファイバおよびその製造方法
CN105091920A (zh) *	2015-09-02	2015-11-25	中国电子科技集团公司第八研究所	集束光纤光栅传感器
US10001597B2 (en)	2015-09-22	2018-06-19	Corning Incorporated	Multicore optical fibers and interconnection methods for the same
JP2017072818A (ja) *	2015-10-08	2017-04-13	住友電気工業株式会社	マルチコア光ファイバ、マルチコア光ファイバケーブルおよび光ファイバ伝送システム
AU2017264006B2 (en) *	2016-05-12	2021-10-28	Sumitomo Electric Industries, Ltd.	Multicore optical fiber, fiber bragg grating, and method for manufacturing fiber bragg grating
KR101941020B1 (ko) *	2016-06-14	2019-01-22	광주과학기술원	광섬유를 이용한 전압센서
CN109613646B (zh) *	2019-01-18	2020-07-03	厦门大学	一种传输光谱存在特征波长的异芯双芯光纤
WO2022003751A1 (ja) *	2020-06-29	2022-01-06	日本電信電話株式会社	マルチコアファイバ、光伝送システム、および、光伝送方法
CN116057438A (zh) *	2020-12-04	2023-05-02	株式会社藤仓	光纤连接体、光通信系统、光设备、以及光纤连接体的制造方法
EP4285167A4 (en) *	2021-01-26	2025-04-02	Ofs Fitel Llc	Multi-core optical fiber
FR3123912B1 (fr)	2021-06-15	2023-06-16	Draka Comteq France	Procédé de fabrication d'une préforme pour une fibre optique multi-cœurs et procédé de fabrication de fibres optiques multi-cœurs.
EP4502683A4 (en) *	2022-03-30	2025-07-09	Sumitomo Electric Industries	MULTI-CORE OPTICAL FIBER
JP2025505483A (ja) *	2022-10-12	2025-02-28	オーエフエスファイテル，エルエルシー	マイクロベンディング下でのマルチコア光ファイバにおけるクロストークの軽減
CN116345279A (zh) *	2023-03-15	2023-06-27	中国地质大学（武汉）	一种腔孤子及光频梳产生装置及方法
CN121596450A (zh) *	2024-08-22	2026-03-03	华为技术有限公司	一种多芯光纤、光缆及通信系统

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* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4478488A (en) *	1980-11-03	1984-10-23	At&T Bell Laboratories	Information transmission using dispersive optical fibers
US5087108A (en) *	1989-08-11	1992-02-11	Societa' Cavi Pirelli S.P.A.	Double-core active-fiber optical amplifier having a wide-band signal wavelength
FR2728693B1 (fr) *	1994-12-21	1997-01-31	Alcatel Cable	Procede de fabrication d'un repartiteur optique multifibre et repartiteur optique obtenu selon ce procede
US5894537A (en) *	1996-01-11	1999-04-13	Corning Incorporated	Dispersion managed optical waveguide

1999
- 1999-08-10 CA CA002344200A patent/CA2344200A1/en not_active Abandoned
- 1999-08-10 CN CN99810832A patent/CN1359474A/zh active Pending
- 1999-08-10 EP EP99969152A patent/EP1114337A2/en not_active Withdrawn
- 1999-08-10 WO PCT/US1999/018090 patent/WO2000016131A2/en not_active Ceased
- 1999-08-10 JP JP2000570612A patent/JP2002525645A/ja active Pending
- 1999-08-10 KR KR1020017003356A patent/KR20010088804A/ko not_active Withdrawn
- 1999-08-10 ID IDW20010838A patent/ID30554A/id unknown
- 1999-08-10 BR BR9913334-2A patent/BR9913334A/pt not_active Application Discontinuation
- 1999-08-10 AU AU14399/00A patent/AU1439900A/en not_active Abandoned
- 1999-09-15 ZA ZA9905927A patent/ZA995927B/xx unknown
- 1999-09-26 TW TW088116554A patent/TW454099B/zh not_active IP Right Cessation

Also Published As

Publication number	Publication date
KR20010088804A (ko)	2001-09-28
TW454099B (en)	2001-09-11
ID30554A (id)	2001-12-20
BR9913334A (pt)	2002-06-18
JP2002525645A (ja)	2002-08-13
EP1114337A2 (en)	2001-07-11
CN1359474A (zh)	2002-07-17
ZA995927B (en)	2000-04-04
CA2344200A1 (en)	2000-03-23
WO2000016131A3 (en)	2000-05-25
WO2000016131A9 (en)	2000-11-16
WO2000016131A2 (en)	2000-03-23

Legal Events

Date	Code	Title	Description
2004-02-19	MK5	Application lapsed section 142(2)(e) - patent request and compl. specification not accepted

Publication	Publication Date	Title
AU1439900A (en)	2000-04-03	Multicore and multimode dispersion managed fibers
JP4065716B2 (ja)	2008-03-26	有効面積の広い正分散光ファイバ
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CN103827708B (zh)	2017-06-20	用于空间多路复用的渐变折射率少模光纤设计
US4252403A (en)	1981-02-24	Coupler for a graded index fiber
CN109581583B (zh)	2020-02-14	一种多包层光纤及多芯光纤耦合器
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US10830946B2 (en)	2020-11-10	Coupled few mode fibers, and corresponding optical link and optical system
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US6751390B2 (en)	2004-06-15	Dispersion and dispersion slope compensating fiber and optical transmission system utilizing same
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