BR0200388A - Fibra ótica e linha de transmissão ótica - Google Patents

Fibra ótica e linha de transmissão ótica

Info

Publication number
BR0200388A
BR0200388A BR0200388-0A BR0200388A BR0200388A BR 0200388 A BR0200388 A BR 0200388A BR 0200388 A BR0200388 A BR 0200388A BR 0200388 A BR0200388 A BR 0200388A
Authority
BR
Brazil
Prior art keywords
less
wavelength
transmission line
optical
shielded
Prior art date
Application number
BR0200388-0A
Other languages
English (en)
Inventor
Mitsuhiro Kawasaki
Yohei Uchida
Hiroaki Oonuma
Original Assignee
Furukawa Electric Co Ltd
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.)
Filing date
Publication date
Application filed by Furukawa Electric Co Ltd filed Critical Furukawa Electric Co Ltd
Publication of BR0200388A publication Critical patent/BR0200388A/pt

Links

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
    • 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
    • G02B6/02214—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
    • G02B6/02266—Positive dispersion fibres at 1550 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
    • G02B6/02214—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
    • G02B6/02266—Positive dispersion fibres at 1550 nm
    • G02B6/02271—Non-zero dispersion shifted fibres, i.e. having a small positive dispersion at 1550 nm, e.g. ITU-T G.655 dispersion between 1.0 to 10 ps/nm.km for avoiding 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
    • G02B6/02214—Optical fibres with cladding with or without a coating tailored to obtain the desired dispersion, e.g. dispersion shifted, dispersion flattened
    • G02B6/0228—Characterised by the wavelength dispersion slope properties around 1550 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
    • G02B6/028—Optical fibres with cladding with or without a coating with core or cladding having graded refractive index
    • G02B6/0286—Combination of graded index in the central core segment and a graded index layer external to the central core segment

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Communication System (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)

Abstract

"FIBRA óTICA E LINHA DE TRANSMISSãO óTICA". A presente invenção refere-se a uma fibra ótica que inclui uma parte de núcleo central (1), uma parte de núcleo lateral (2) e uma parte blindada (3) em uma ordem a partir de um lado interno, que possui um valor de dispersão de 14 ps/nm/km ou maior e 20 ps/nm/km ou menos em um comprimento de onda de 1550 nm, uma inclinação de dispersão de 0,05 ps/nm^ 2^/km ou maior e 0,08 ps/nm^ 2^/km ou menos a um comprimento de onda de 1550 nm e uma atenuação de transmissão de 0,2 dB/km ou menos a um comprimento de onda de 1550 nm, em que a diferença de índice de refração relativa <30>1 entre a parte de núcleo central (1) e a parte blindada (3) é 0,25% ou maior e 0,50% ou menos, a diferença de índice de refração relativa <30>2 entre a parte de núcleo lateral (2) e a parte blindada (3) é 0,05% ou maior e 0,30% ou menor, uma desigualdade <30>2 < <30>1 é satisfeita, uma razão a/b entre um diâmetro externo a da parte de núcleo central (1) e um diâmetro externo b da parte de núcleo lateral (2) é 0,3 ou maior e 0,7 ou menor, e uma área de núcleo eficaz Aeff a um comprimento de onda de 1550 nm é 90 <109>m^ 2^ ou maior.
BR0200388-0A 2001-02-16 2002-02-15 Fibra ótica e linha de transmissão ótica BR0200388A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001040663A JP3845260B2 (ja) 2001-02-16 2001-02-16 光ファイバおよび光伝送路

Publications (1)

Publication Number Publication Date
BR0200388A true BR0200388A (pt) 2002-10-08

Family

ID=18903230

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0200388-0A BR0200388A (pt) 2001-02-16 2002-02-15 Fibra ótica e linha de transmissão ótica

Country Status (9)

Country Link
US (2) US6665482B2 (pt)
EP (1) EP1233288A3 (pt)
JP (1) JP3845260B2 (pt)
KR (1) KR20020067654A (pt)
CN (1) CN1199063C (pt)
BR (1) BR0200388A (pt)
CA (1) CA2371044A1 (pt)
HK (1) HK1049884A1 (pt)
RU (1) RU2002104340A (pt)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6611647B2 (en) 2000-12-12 2003-08-26 Corning Incorporated Large effective area optical fiber
JP2003227959A (ja) * 2002-02-04 2003-08-15 Furukawa Electric Co Ltd:The 波長多重伝送用単一モード光ファイバ
KR100575934B1 (ko) * 2003-01-22 2006-05-02 삼성전자주식회사 광섬유
US6952519B2 (en) * 2003-05-02 2005-10-04 Corning Incorporated Large effective area high SBS threshold optical fiber
US6904218B2 (en) * 2003-05-12 2005-06-07 Fitel U.S.A. Corporation Super-large-effective-area (SLA) optical fiber and communication system incorporating the same
US7082243B2 (en) * 2004-04-05 2006-07-25 Corning Incorporated Large effective area high SBS threshold optical fiber
KR100602754B1 (ko) 2004-07-08 2006-07-20 엘에스전선 주식회사 Ｓ-ｃ-ｌ밴드에서 파장분할 다중신호를 고속, 대용량으로전송하기 위한 광섬유, 이를 이용한 광전송선 및 광통신시스템
FR2900739B1 (fr) * 2006-05-03 2008-07-04 Draka Comteq France Fibre de compensation de la dispersion chromatique
WO2007148799A1 (ja) 2006-06-23 2007-12-27 Uni-Charm Corporation 吸収性物品
JP5123513B2 (ja) 2006-06-23 2013-01-23 ユニ・チャーム株式会社 吸収体
JP5328088B2 (ja) 2006-06-23 2013-10-30 ユニ・チャーム株式会社 不織布
JP5328089B2 (ja) 2006-06-23 2013-10-30 ユニ・チャーム株式会社 多層不織布及び多層不織布の製造方法
FR2914751B1 (fr) 2007-04-06 2009-07-03 Draka Comteq France Fibre optique monomode
US8016065B2 (en) * 2008-09-11 2011-09-13 Clark Equipment Company Split chaincase with fixed axles
CN102200610B (zh) * 2011-05-27 2012-10-17 成都富通光通信技术有限公司 适用于超高速长距离密集波分复用的色散优化单模光纤

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS543553A (en) * 1977-06-10 1979-01-11 Nippon Telegr & Teleph Corp <Ntt> Optical line
JPS6252508A (ja) * 1985-09-02 1987-03-07 Nippon Telegr & Teleph Corp <Ntt> 光フアイバ
US4877304A (en) * 1987-09-09 1989-10-31 Corning Incorporated Few-mode/single-mode fiber
US5822488A (en) * 1995-10-04 1998-10-13 Sumitomo Electric Industries, Inc. Single-mode optical fiber with plural core portions
US5715346A (en) * 1995-12-15 1998-02-03 Corning Incorporated Large effective area single mode optical waveguide
DE69836402T2 (de) * 1997-09-12 2007-09-20 Corning Inc. Optischer Wellenleiter mit niedriger Dämpfung
EP1037074A4 (en) * 1997-12-05 2001-01-17 Sumitomo Electric Industries DISPERSIONS MOVED OPTICAL FIBER
EP1107027B1 (en) * 1999-04-13 2011-10-12 Sumitomo Electric Industries, Ltd. Optical fiber and optical communication system comprising the same
CA2340947A1 (en) * 1999-06-28 2001-01-04 The Furukawa Electric Co., Ltd. Optical transmission line
US6611647B2 (en) * 2000-12-12 2003-08-26 Corning Incorporated Large effective area optical fiber
US6483975B1 (en) * 2001-04-27 2002-11-19 Fitel Usa Corp. Positive dispersion optical fiber having large effective area

Also Published As

Publication number Publication date
CN1371003A (zh) 2002-09-25
US20040223714A1 (en) 2004-11-11
US20020154876A1 (en) 2002-10-24
RU2002104340A (ru) 2003-10-20
HK1049884A1 (zh) 2003-05-30
JP3845260B2 (ja) 2006-11-15
EP1233288A3 (en) 2004-05-26
CN1199063C (zh) 2005-04-27
CA2371044A1 (en) 2002-08-16
US6665482B2 (en) 2003-12-16
KR20020067654A (ko) 2002-08-23
EP1233288A2 (en) 2002-08-21
JP2002243965A (ja) 2002-08-28

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Legal Events

Date Code Title Description
B11A Dismissal acc. art.33 of ipl - examination not requested within 36 months of filing
B11Y Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette]