CA2274361A1 - Optical fiber having low non-linearity for wdm transmission - Google Patents

Optical fiber having low non-linearity for wdm transmission Download PDF

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Publication number
CA2274361A1
CA2274361A1 CA002274361A CA2274361A CA2274361A1 CA 2274361 A1 CA2274361 A1 CA 2274361A1 CA 002274361 A CA002274361 A CA 002274361A CA 2274361 A CA2274361 A CA 2274361A CA 2274361 A1 CA2274361 A1 CA 2274361A1
Authority
CA
Canada
Prior art keywords
inner core
region
index
core
linearity
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.)
Granted
Application number
CA002274361A
Other languages
French (fr)
Other versions
CA2274361C (en
Inventor
Bartolomeo Italo Tirloni
Francesco Gabriele Sartori
Davide Sarchi
Giacomo Stefano Roba
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.)
Prysmian Cavi e Sistemi Energia SRL
Original Assignee
Pirelli and C SpA
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 Pirelli and C SpA filed Critical Pirelli and C SpA
Publication of CA2274361A1 publication Critical patent/CA2274361A1/en
Application granted granted Critical
Publication of CA2274361C publication Critical patent/CA2274361C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • G02B6/02004—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
    • G02B6/02214—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
    • G02B6/036—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
    • G02B6/0281—Graded index region forming part of the central core segment, e.g. alpha profile, triangular, trapezoidal core

Abstract

An optical transmission fiber has a refractive index profile with an area of increased index of refraction at the inner core of the fiber, an annular region positioned radially outward from the inner core with an index of refraction exceeding the index of the inner core, and at least a low dopant content region in a cross--sectional region between the inner core and the annular region. A low loss cladding layer surrounds the core region. The optical transmission fiber with this segmented core profile provides a high effective area, low non-linearity coefficient, nonzero dispersion, and relatively flat dispersion slope.
CA002274361A 1998-06-19 1999-06-14 Optical fiber having low non-linearity for wdm transmission Expired - Fee Related CA2274361C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP98111292 1998-06-19
EP98111292.3 1998-06-19

Publications (2)

Publication Number Publication Date
CA2274361A1 true CA2274361A1 (en) 1999-12-19
CA2274361C CA2274361C (en) 2008-08-05

Family

ID=8232144

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002274361A Expired - Fee Related CA2274361C (en) 1998-06-19 1999-06-14 Optical fiber having low non-linearity for wdm transmission

Country Status (10)

Country Link
JP (1) JP2000162461A (en)
KR (1) KR100622615B1 (en)
CN (1) CN1144072C (en)
AR (1) AR020597A1 (en)
AT (1) ATE446524T1 (en)
AU (1) AU768485B2 (en)
BR (1) BR9902386B1 (en)
CA (1) CA2274361C (en)
DE (1) DE69941552D1 (en)
NZ (1) NZ336194A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3100087B1 (en) * 2014-01-31 2022-04-13 OFS Fitel, LLC Design and manufacture of multi-mode optical fibers
CN111983871B (en) * 2020-09-03 2022-05-20 山西大学 All-optical amplification method of optical soliton pulse train
US11592612B2 (en) * 2020-12-30 2023-02-28 Lumentum Operations Llc In-fiber offset to annulus converter

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60257408A (en) * 1984-06-04 1985-12-19 Shin Etsu Chem Co Ltd Optical fiber and its production
US4889404A (en) * 1987-09-09 1989-12-26 Corning Incorporated Asymmetrical bidirectional telecommunication system
US5835655A (en) * 1995-01-26 1998-11-10 Corning Incorporated Large effective area waveguide fiber
AU715435B2 (en) * 1996-02-12 2000-02-03 Corning Incorporated Single mode optical waveguide having large effective area
EP0798578A1 (en) * 1996-03-22 1997-10-01 Corning Incorporated Dispersion shifted optical waveguide fiber

Also Published As

Publication number Publication date
BR9902386A (en) 2000-01-18
DE69941552D1 (en) 2009-12-03
KR20000006257A (en) 2000-01-25
AU3575899A (en) 2000-01-06
ATE446524T1 (en) 2009-11-15
CA2274361C (en) 2008-08-05
BR9902386B1 (en) 2014-08-26
NZ336194A (en) 2000-10-27
AU768485B2 (en) 2003-12-11
KR100622615B1 (en) 2006-09-11
CN1243257A (en) 2000-02-02
CN1144072C (en) 2004-03-31
JP2000162461A (en) 2000-06-16
AR020597A1 (en) 2002-05-22

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