BR0200538A - Fibra ótica de baixa atenuação - Google Patents

Fibra ótica de baixa atenuação

Info

Publication number
BR0200538A
BR0200538A BR0200538-7A BR0200538A BR0200538A BR 0200538 A BR0200538 A BR 0200538A BR 0200538 A BR0200538 A BR 0200538A BR 0200538 A BR0200538 A BR 0200538A
Authority
BR
Brazil
Prior art keywords
low attenuation
optical fiber
wavelength
attenuation optical
transmission loss
Prior art date
Application number
BR0200538-7A
Other languages
English (en)
Inventor
Fumio Takahashi
Jun-Ichi Tamura
Akira Iino
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 BR0200538A publication Critical patent/BR0200538A/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
    • G02B6/03661—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
    • 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
    • G02B6/02214—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
    • G02B6/02228—Dispersion flattened fibres, i.e. having a low dispersion variation over an extended wavelength range
    • G02B6/02238—Low dispersion slope fibres
    • G02B6/02242—Low dispersion slope fibres having a dispersion slope <0.06 ps/km/nm2
    • 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
    • G02B6/02285—Characterised by the polarisation mode dispersion [PMD] properties, e.g. for minimising PMD
    • 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
    • G02B6/028—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 DE BAIXA ATENUAçãO". Uma fibra ótica de baixa atenuação que está dentro de 2-14 ps/nm/km em valor de dispersão absoluto sobre a faixa de comprimento de onda total de 1530-1565 nm e não mais que 0,25 dB/km de perda de transmissão em 1550 nm de comprimento de onda a temperatura normal e umidade relativa, e ainda permanece não mais que 0,25 dB/km de perda de transmissão em 1550 nm ou 1520 nm depois de ser exposto longamente sob pressão atmosférica normal que consiste substancialmente de hidrogênio e que ainda compreende uma dispersão de modo de polarização (PMD) de não mais que 0,5 ps/ <sym>Km a um comprimento de onda de 1550 nm e um aumento de perda de não mais que 40 dB/m em um diâmetro de curvatura de 20 mm.
BR0200538-7A 2001-02-27 2002-02-27 Fibra ótica de baixa atenuação BR0200538A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001052971A JP2002258090A (ja) 2001-02-27 2001-02-27 低損失光ファイバ

Publications (1)

Publication Number Publication Date
BR0200538A true BR0200538A (pt) 2002-10-29

Family

ID=18913510

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0200538-7A BR0200538A (pt) 2001-02-27 2002-02-27 Fibra ótica de baixa atenuação

Country Status (8)

Country Link
US (2) US6782173B2 (pt)
EP (1) EP1235084A3 (pt)
JP (1) JP2002258090A (pt)
KR (1) KR20020070143A (pt)
CN (1) CN1372399A (pt)
BR (1) BR0200538A (pt)
CA (1) CA2373567A1 (pt)
HK (1) HK1046794A1 (pt)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002258090A (ja) * 2001-02-27 2002-09-11 Furukawa Electric Co Ltd:The 低損失光ファイバ
US20030099450A1 (en) * 2001-11-28 2003-05-29 Huailiang Wei Profile for limited mode fiber
KR20040075982A (ko) 2002-02-15 2004-08-30 코닝 인코포레이티드 저기울기 분산 편이 광섬유
US20040022509A1 (en) * 2002-07-31 2004-02-05 Pushkar Tandon Non-zero dispersion shifted optical fiber with depressed core having large effective area, low slope and low dispersion
US7103251B2 (en) * 2002-12-31 2006-09-05 Corning Incorporated Dispersion flattened NZDSF fiber
US7752870B1 (en) 2003-10-16 2010-07-13 Baker Hughes Incorporated Hydrogen resistant optical fiber formation technique
US6985662B2 (en) * 2003-10-30 2006-01-10 Corning Incorporated Dispersion compensating fiber for moderate dispersion NZDSF and transmission system utilizing same
US7024083B2 (en) 2004-02-20 2006-04-04 Corning Incorporated Non-zero dispersion shifted optical fiber
FR2867865B1 (fr) * 2004-03-16 2008-05-30 Cit Alcatel Fibre optique a compensation de dispersion chromatique en bande utilisant un mode d'ordre superieur
US7946135B2 (en) * 2007-01-02 2011-05-24 Draka Comteq, B.V. Extended-baking process for glass deposition tubes
KR20110110605A (ko) * 2010-04-01 2011-10-07 엘에스전선 주식회사 저손실 비영분산천이 광섬유 및 그 제조방법
US12278693B2 (en) * 2022-12-06 2025-04-15 Ciena Corporation Stretched single optical span communications system and method avoiding hazardous power levels

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63208003A (ja) * 1987-02-25 1988-08-29 Sumitomo Electric Ind Ltd 光フアイバ
EP0673895A3 (en) * 1994-03-24 1996-01-03 At & T Corp Glass passivated optical waveguides against hydrogen induced loss increases.
KR100265788B1 (ko) 1997-07-03 2000-09-15 윤종용 높은소신호이득을갖는광섬유증폭기
ID24704A (id) * 1997-07-15 2000-08-03 Corning Inc Mengurangi sensitifitas h2 pada serat optik
FR2790107B1 (fr) * 1999-02-18 2001-05-04 Cit Alcatel Fibre de ligne pour systemes de transmission a fibre optique a multiplexage en longueurs d'onde
DE60039600D1 (de) * 2000-08-25 2008-09-04 Draka Comteq Bv Verfahren zur Verringerung der Wasserstoffempfindlichkeit von Glasfasern bei 1380-1410 nm
JP2002202428A (ja) * 2000-10-31 2002-07-19 Sumitomo Electric Ind Ltd 光ファイバ
JP2002258090A (ja) * 2001-02-27 2002-09-11 Furukawa Electric Co Ltd:The 低損失光ファイバ
US6944381B2 (en) * 2002-08-28 2005-09-13 The Furukawa Electric Co., Ltd. Optical fiber and evaluation method thereof

Also Published As

Publication number Publication date
KR20020070143A (ko) 2002-09-05
EP1235084A2 (en) 2002-08-28
CA2373567A1 (en) 2002-08-27
EP1235084A3 (en) 2004-09-08
US6782173B2 (en) 2004-08-24
US20020168159A1 (en) 2002-11-14
HK1046794A1 (zh) 2003-01-24
US20040258380A1 (en) 2004-12-23
JP2002258090A (ja) 2002-09-11
US6952516B2 (en) 2005-10-04
CN1372399A (zh) 2002-10-02

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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 acc. article 33 of ipl - extension of time limit for request of examination expired