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1. WO2000017681 - OPTICAL FIBRE WITH OPTIMISED RATIO OF EFFECTIVE AREA TO DISPERSION SCOPE FOR OPTICAL FIBRE TRANSMISSION SYSTEM WITH WAVELENGTH MULTIPLEXING

Publication Number WO/2000/017681
Publication Date 30.03.2000
International Application No. PCT/FR1999/002220
International Filing Date 17.09.1999
IPC
G02B 6/036 2006.01
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
02Optical fibre with cladding
036core or cladding comprising multiple layers
CPC
G02B 6/02014
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6Light guides
02Optical fibre with cladding ; with or without a coating
02004characterised by the core effective area or mode field radius
02009Large effective area or mode field radius, e.g. to reduce nonlinear effects in single mode fibres
02014Effective area greater than 60 square microns in the C band, i.e. 1530-1565 nm
G02B 6/02271
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6Light guides
02Optical fibre with cladding ; with or without a coating
02214tailored to obtain the desired dispersion, e.g. dispersion shifted, dispersion flattened
02219Characterised 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
02266Positive dispersion fibres at 1550 nm
02271Non-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
G02B 6/0228
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6Light guides
02Optical fibre with cladding ; with or without a coating
02214tailored to obtain the desired dispersion, e.g. dispersion shifted, dispersion flattened
0228Characterised by the wavelength dispersion slope properties around 1550 nm
G02B 6/0281
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6Light guides
02Optical fibre with cladding ; with or without a coating
028with core or cladding having graded refractive index
0281Graded index region forming part of the central core segment, e.g. alpha profile, triangular, trapezoidal core
G02B 6/03611
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6Light guides
02Optical fibre with cladding ; with or without a coating
036core or cladding comprising multiple layers
03605Highest refractive index not on central axis
03611Highest index adjacent to central axis region, e.g. annular core, coaxial ring, centreline depression affecting waveguiding
G02B 6/03627
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6Light guides
02Optical fibre with cladding ; with or without a coating
036core or cladding comprising multiple layers
03616Optical 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
03622having 2 layers only
03627arranged - +
Applicants
  • ALCATEL [FR]/[FR] (AllExceptUS)
  • DE MONTMORILLON, Louis-Anne [FR]/[FR] (UsOnly)
  • NOUCHI, Pascale [FR]/[FR] (UsOnly)
  • ROUSSEAU, Jean-Claude [FR]/[FR] (UsOnly)
  • SAUVAGEON, Raphaëlle [FR]/[FR] (UsOnly)
  • CHARIOT, Jean-François [FR]/[FR] (UsOnly)
  • BERTAINA, Alain [FR]/[FR] (UsOnly)
Inventors
  • DE MONTMORILLON, Louis-Anne
  • NOUCHI, Pascale
  • ROUSSEAU, Jean-Claude
  • SAUVAGEON, Raphaëlle
  • CHARIOT, Jean-François
  • BERTAINA, Alain
Agents
  • LAMOUREUX, Bernard
Priority Data
98/1164417.09.1998FR
99/0202818.02.1999FR
Publication Language French (FR)
Filing Language French (FR)
Designated States
Title
(EN) OPTICAL FIBRE WITH OPTIMISED RATIO OF EFFECTIVE AREA TO DISPERSION SCOPE FOR OPTICAL FIBRE TRANSMISSION SYSTEM WITH WAVELENGTH MULTIPLEXING
(FR) FIBRE OPTIQUE A RAPPORT OPTIMISE ENTRE L'AIRE EFFECTIVE ET LA PENTE DE DISPERSION POUR SYSTEMES DE TRANSMISSION A FIBRE OPTIQUE A MULTIPLEXAGE EN LONGUEURS D'ONDE
Abstract
(EN)
The invention concerns a monomode optical fibre having, for a wavelength of 1550 nm an effective area not less than 60 $g(m)m2, a chromatic dispersion between 3 and 14 ps/(nm.km), a chromatic dispersion slope between 0 and 0.1 ps/(nm2.km), and a ratio of the effective area to the chromatic dispersion slope not less than 1000 $g(m)m2.nm2.km/ps, and a chromatic dispersion cut off wavelength less than 1480 nm. Thus the fibre has both a high effective area and a low chromatic dispersion shift, and is thereby well adapted for transmission with wavelength multiplexing. The invention also concerns an optical fibre transmission system with wavelength multiplexing using such a fibre as transmission fibre.
(FR)
L'invention propose une fibre optique monomode présentant, pour une longueur d'onde de 1550 nm une aire effective supérieure ou égale à 60 $g(m)m2, une dispersion chromatique entre 3 et 14 ps/(nm.km), une pente de dispersion chromatique entre 0 et 0,1 ps/(nm2.km), et un rapport entre l'aire effective et la pente de dispersion chromatique supérieur ou égal à 1000 $g(m)m2.nm2..km/ps, ainsi qu'une longueur d'onde d'annulation de la dispersion chromatique inférieure à 1480 nm. La fibre présente ainsi à la fois une forte aire effective et aussi une faible pente de dispersion chromatique, et est donc bien adaptée aux transmissions à multiplexage en longueurs d'onde. L'invention concerne aussi un système de transmission à fibre optique à multiplexage en longueurs d'onde, utilisant comme fibre de ligne une telle fibre.
Also published as
EP2008020062
Latest bibliographic data on file with the International Bureau