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1. US20130183016 - Multi-core optical fiber and method of manufacturing the same

Office
États-Unis d'Amérique
Numéro de la demande 13786029
Date de la demande 05.03.2013
Numéro de publication 20130183016
Date de publication 18.07.2013
Numéro de délivrance 08737793
Date de délivrance 27.05.2014
Type de publication B2
CIB
G02B 6/036
GPHYSIQUE
02OPTIQUE
BÉLÉMENTS, SYSTÈMES OU APPAREILS OPTIQUES
6Guides de lumière; Détails de structure de dispositions comprenant des guides de lumière et d'autres éléments optiques, p.ex. des moyens de couplage
02Fibres optiques avec revêtement
036le noyau ou le revêtement comprenant des couches multiples
G02B 6/02
GPHYSIQUE
02OPTIQUE
BÉLÉMENTS, SYSTÈMES OU APPAREILS OPTIQUES
6Guides de lumière; Détails de structure de dispositions comprenant des guides de lumière et d'autres éléments optiques, p.ex. des moyens de couplage
02Fibres optiques avec revêtement
C03B 37/012
CCHIMIE; MÉTALLURGIE
03VERRE; LAINE MINÉRALE OU DE SCORIES
BFABRICATION OU FAÇONNAGE DU VERRE, DE LA LAINE MINÉRALE OU DE SCORIES;  TRAITEMENTS ADDITIONNELS DANS LA FABRICATION OU LE FAÇONNAGE DU VERRE, DE LA LAINE MINÉRALE OU DE SCORIES
37Fabrication ou traitement de copeaux, de fibres ou de filaments obtenus à partir de verre, substances minérales ou scories ramollies
01Fabrication de fibres ou de filaments de verre
012Fabrication d'ébauches d'étirage de fibres ou de filaments
CPC
G02B 6/02042
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6Light guides
02Optical fibre with cladding ; with or without a coating
02042Multicore optical fibres
C03B 37/01222
CCHEMISTRY; METALLURGY
03GLASS; MINERAL OR SLAG WOOL
BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
37Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
01Manufacture of glass fibres or filaments
012Manufacture of preforms for drawing fibres or filaments
01205starting from tubes, rods, fibres or filaments
01211by inserting one or more rods or tubes into a tube
01222for making preforms of multiple core optical fibres
G02B 6/0365
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
03638having 3 layers only
0365arranged - - +
Déposants Furukawa Electric Co., Ltd.
Inventeurs Imamura Katsunori
Mandataires Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
Données relatives à la priorité 2010-059960 16.03.2010 JP
Titre
(EN) Multi-core optical fiber and method of manufacturing the same
Abrégé
(EN)

A multi-core optical fiber includes: a plurality of core portions; and a cladding portion positioned so as to surround each of the core portions, wherein each core portion includes a center core portion that has a refractive index greater than that of the cladding portion, a second core portion that is formed so as to surround the center core portion and that has a refractive index less than that of the center core portion, and a depressed portion that is formed so as to surround the second core portion and that has a refractive index less than those of the second core portion and the cladding portion, and an interval distance between the adjacent core portions is set such that optical cross-talk between the core portions for a total length of the multi-core optical fiber is equal to or less than −30 dB at a wavelength of 1.55 μm.


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