IT1122360B - Filamento ottico,con indice a gradiente ad elevata larghezza di banda e metodo di fabbricazione - Google Patents

Filamento ottico,con indice a gradiente ad elevata larghezza di banda e metodo di fabbricazione

Info

Publication number: IT1122360B
Authority: IT; Italy
Prior art keywords: manufacturing; high gradient; bandwidth index; optical filament; filament
Prior art date: 1978-07-31

Application number

IT24686/79A

Other languages

English (en)

Other versions

IT7924686A0 (it

Original Assignee

Corning Glass Works

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.)

1978-07-31

Filing date

1979-07-26

Publication date

1986-04-23

1979-07-26 Application filed by Corning Glass Works filed Critical Corning Glass Works

1979-07-26 Publication of IT7924686A0 publication Critical patent/IT7924686A0/it

1986-04-23 Application granted granted Critical

1986-04-23 Publication of IT1122360B publication Critical patent/IT1122360B/it

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
- G02B6/03627—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 - +
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/012—Manufacture of preforms for drawing fibres or filaments
- C03B37/014—Manufacture of preforms for drawing fibres or filaments made entirely or partially by chemical means, e.g. vapour phase deposition of bulk porous glass either by outside vapour deposition [OVD], or by outside vapour phase oxidation [OVPO] or by vapour axial deposition [VAD]
- C03B37/018—Manufacture of preforms for drawing fibres or filaments made entirely or partially by chemical means, e.g. vapour phase deposition of bulk porous glass either by outside vapour deposition [OVD], or by outside vapour phase oxidation [OVPO] or by vapour axial deposition [VAD] by glass deposition on a glass substrate, e.g. by inside-, modified-, plasma- or plasma modified- chemical vapour deposition [ICVD, MCVD, PCVD, PMCVD], i.e. by thin layer coating on the inside or outside of a glass tube or on a glass rod
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/012—Manufacture of preforms for drawing fibres or filaments
- C03B37/014—Manufacture of preforms for drawing fibres or filaments made entirely or partially by chemical means, e.g. vapour phase deposition of bulk porous glass either by outside vapour deposition [OVD], or by outside vapour phase oxidation [OVPO] or by vapour axial deposition [VAD]
- C03B37/018—Manufacture of preforms for drawing fibres or filaments made entirely or partially by chemical means, e.g. vapour phase deposition of bulk porous glass either by outside vapour deposition [OVD], or by outside vapour phase oxidation [OVPO] or by vapour axial deposition [VAD] by glass deposition on a glass substrate, e.g. by inside-, modified-, plasma- or plasma modified- chemical vapour deposition [ICVD, MCVD, PCVD, PMCVD], i.e. by thin layer coating on the inside or outside of a glass tube or on a glass rod
- C03B37/01861—Means for changing or stabilising the diameter or form of tubes or rods
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C13/00—Fibre or filament compositions
- C03C13/04—Fibre optics, e.g. core and clad fibre compositions
- C03C13/045—Silica-containing oxide glass compositions
- 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
- G02B6/0288—Multimode fibre, e.g. graded index core for compensating modal dispersion
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2201/00—Type of glass produced
- C03B2201/06—Doped silica-based glasses
- C03B2201/08—Doped silica-based glasses doped with boron or fluorine or other refractive index decreasing dopant
- C03B2201/10—Doped silica-based glasses doped with boron or fluorine or other refractive index decreasing dopant doped with boron
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2201/00—Type of glass produced
- C03B2201/06—Doped silica-based glasses
- C03B2201/20—Doped silica-based glasses doped with non-metals other than boron or fluorine
- C03B2201/28—Doped silica-based glasses doped with non-metals other than boron or fluorine doped with phosphorus
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2201/00—Type of glass produced
- C03B2201/06—Doped silica-based glasses
- C03B2201/30—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi
- C03B2201/31—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi doped with germanium
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2203/00—Fibre product details, e.g. structure, shape
- C03B2203/10—Internal structure or shape details
- C03B2203/22—Radial profile of refractive index, composition or softening point
- C03B2203/26—Parabolic or graded index [GRIN] core profile

Landscapes

Chemical & Material Sciences (AREA)
Physics & Mathematics (AREA)
Engineering & Computer Science (AREA)
Materials Engineering (AREA)
Geochemistry & Mineralogy (AREA)
Chemical Kinetics & Catalysis (AREA)
General Chemical & Material Sciences (AREA)
Life Sciences & Earth Sciences (AREA)
Optics & Photonics (AREA)
Organic Chemistry (AREA)
Manufacturing & Machinery (AREA)
General Physics & Mathematics (AREA)
General Life Sciences & Earth Sciences (AREA)
Dispersion Chemistry (AREA)
Manufacture, Treatment Of Glass Fibers (AREA)
Optical Integrated Circuits (AREA)
Glass Compositions (AREA)
Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)

IT24686/79A 1978-07-31 1979-07-26 Filamento ottico,con indice a gradiente ad elevata larghezza di banda e metodo di fabbricazione IT1122360B (it)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US05/929,416 US4230396A (en)	1978-07-31	1978-07-31	High bandwidth optical waveguides and method of fabrication

Publications (2)

Publication Number	Publication Date
IT7924686A0 IT7924686A0 (it)	1979-07-26
IT1122360B true IT1122360B (it)	1986-04-23

Family

ID=25457830

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
IT24686/79A IT1122360B (it)	1978-07-31	1979-07-26	Filamento ottico,con indice a gradiente ad elevata larghezza di banda e metodo di fabbricazione

Country Status (19)

Country	Link
US (1)	US4230396A (it)
JP (1)	JPS5521093A (it)
AU (1)	AU512858B2 (it)
BE (1)	BE877901A (it)
BR (1)	BR7904786A (it)
CA (1)	CA1116450A (it)
DE (1)	DE2930399A1 (it)
DK (1)	DK316679A (it)
ES (2)	ES482850A1 (it)
FI (1)	FI792351A7 (it)
FR (1)	FR2432488A1 (it)
GB (1)	GB2027929B (it)
IL (1)	IL57900A (it)
IN (1)	IN164661B (it)
IT (1)	IT1122360B (it)
NL (1)	NL7905803A (it)
NO (1)	NO792483L (it)
SE (1)	SE7906402L (it)
YU (1)	YU184679A (it)

Families Citing this family (44)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2062610B (en) *	1979-10-29	1983-03-09	Standard Telephones Cables Ltd	Single mode optical fibres
US4339174A (en) *	1980-02-01	1982-07-13	Corning Glass Works	High bandwidth optical waveguide
DE3031147A1 (de) *	1980-08-18	1982-03-18	Siemens AG, 1000 Berlin und 8000 München	Verfahren zum herstellen von glas mit einem vorbestimmten brechzahlprofil und alkalifreies glas aus einem oxis eines grundstoffes, das mit einem oder mehreren weiteren stoffen dotiert ist
CA1170876A (en) *	1980-12-29	1984-07-17	Koichi Abe	Fiber with coarse index gradient
US4412853A (en) *	1981-06-29	1983-11-01	Western Electric Company, Inc.	Method of making optical waveguide fiber preform starter tubes
JPS59232302A (ja) *	1983-06-15	1984-12-27	Sumitomo Electric Ind Ltd	光伝送用フアイバ
US4956000A (en) *	1989-06-28	1990-09-11	Reeber Robert R	Gradient lens fabrication
DE3923686A1 (de) *	1989-07-18	1991-01-24	Rheydt Kabelwerk Ag	Verfahren zur vorbehandlung eines substratrohres fuer lichtwellenleiter
FR2650584B1 (fr) *	1989-08-02	1993-12-17	Cie Generale D Electricite	Procede de fabrication d'une fibre optique a gaine dopee
DE3938386A1 (de) *	1989-11-18	1991-05-23	Rheydt Kabelwerk Ag	Lichtwellenleiter
US5059230A (en) *	1990-01-22	1991-10-22	At&T Bell Laboratories	Fabrication of doped filament optical fibers
US5418882A (en) *	1992-09-25	1995-05-23	General Electric Company	Optical fiber for high power laser transmission
US5852690A (en) *	1997-06-30	1998-12-22	Minnesota Mining And Manufacturing Company	Depressed cladding fiber design for reducing coupling to cladding modes in fiber gratings
KR100322131B1 (ko) *	1999-01-28	2002-02-04	윤종용	오.에이치.차단층을 구비한 광섬유 모재 및 그 제조방법
KR100322126B1 (ko)	1999-01-18	2002-02-04	윤종용	광도파로 제작용 기판 및 그 제작방법
CA2355819A1 (en) *	2000-08-28	2002-02-28	Sumitomo Electric Industries, Ltd.	Optical fiber, method of making optical fiber preform, and method of making optical fiber
US20030024276A1 (en) *	2001-05-30	2003-02-06	3M Innovative Properties Company	Method of manufacture of an optical waveguide article including a fluorine-containing zone
NL1024015C2 (nl)	2003-07-28	2005-02-01	Draka Fibre Technology Bv	Multimode optische vezel voorzien van een brekingsindexprofiel, optisch communicatiesysteem onder toepassing daarvan en werkwijze ter vervaardiging van een dergelijke vezel.
US20090193851A1 (en) *	2005-05-12	2009-08-06	Nitin Kumar Goel	Core suction technique for the fabrication of optical fiber preforms
GB2466422A (en) *	2007-10-23	2010-06-23	Fiber Optics Res Ct	Optical fibre having resistance to hydrogen-induced attenuation
FR2922657B1 (fr) *	2007-10-23	2010-02-12	Draka Comteq France	Fibre multimode.
FR2932932B1 (fr) *	2008-06-23	2010-08-13	Draka Comteq France Sa	Systeme optique multiplexe en longueur d'ondes avec fibres optiques multimodes
FR2933779B1 (fr) *	2008-07-08	2010-08-27	Draka Comteq France	Fibres optiques multimodes
FR2940839B1 (fr) *	2009-01-08	2012-09-14	Draka Comteq France	Fibre optique multimodale a gradient d'indice, procedes de caracterisation et de fabrication d'une telle fibre
FR2946436B1 (fr)	2009-06-05	2011-12-09	Draka Comteq France	Fibre optique multimode a tres large bande passante avec une interface coeur-gaine optimisee
FR2953606B1 (fr) *	2009-12-03	2012-04-27	Draka Comteq France	Fibre optique multimode a large bande passante et a faibles pertes par courbure
FR2957153B1 (fr) *	2010-03-02	2012-08-10	Draka Comteq France	Fibre optique multimode a large bande passante et a faibles pertes par courbure
FR2949870B1 (fr) *	2009-09-09	2011-12-16	Draka Compteq France	Fibre optique multimode presentant des pertes en courbure ameliorees
US9014525B2 (en)	2009-09-09	2015-04-21	Draka Comteq, B.V.	Trench-assisted multimode optical fiber
FR2953029B1 (fr) *	2009-11-25	2011-11-18	Draka Comteq France	Fibre optique multimode a tres large bande passante avec une interface coeur-gaine optimisee
FR2953605B1 (fr) *	2009-12-03	2011-12-16	Draka Comteq France	Fibre optique multimode a large bande passante et a faibles pertes par courbure
FR2953030B1 (fr) *	2009-11-25	2011-11-18	Draka Comteq France	Fibre optique multimode a tres large bande passante avec une interface coeur-gaine optimisee
FR2950156B1 (fr) *	2009-09-17	2011-11-18	Draka Comteq France	Fibre optique multimode
US8385703B2 (en) *	2010-03-02	2013-02-26	Corning Incorporated	High numerical aperture multimode optical fiber
FR2966256B1 (fr)	2010-10-18	2012-11-16	Draka Comteq France	Fibre optique multimode insensible aux pertes par
DK2482106T5 (da)	2011-01-31	2014-09-22	Draka Comteq Bv	Multimode-fiber
FR2971061B1 (fr)	2011-01-31	2013-02-08	Draka Comteq France	Fibre optique a large bande passante et a faibles pertes par courbure
EP2503368A1 (en)	2011-03-24	2012-09-26	Draka Comteq B.V.	Multimode optical fiber with improved bend resistance
EP2506044A1 (en)	2011-03-29	2012-10-03	Draka Comteq B.V.	Multimode optical fiber
EP2518546B1 (en)	2011-04-27	2018-06-20	Draka Comteq B.V.	High-bandwidth, radiation-resistant multimode optical fiber
US8670643B2 (en) *	2011-05-18	2014-03-11	Corning Incorporated	Large effective area optical fibers
DE102011109838A1 (de)	2011-05-27	2012-11-29	J-Plasma Gmbh	Lichtleitfaser
DK2541292T3 (en)	2011-07-01	2014-12-01	Draka Comteq Bv	A multimode optical fiber
US9188736B2 (en) *	2013-04-08	2015-11-17	Corning Incorporated	Low bend loss optical fiber

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3711262A (en) *	1970-05-11	1973-01-16	Corning Glass Works	Method of producing optical waveguide fibers
USRE28028E (en)	1972-01-03	1974-06-04		Method op forming an economic optical waveguide fiber
US3823995A (en) *	1972-03-30	1974-07-16	Corning Glass Works	Method of forming light focusing fiber waveguide
US3785718A (en) *	1972-09-11	1974-01-15	Bell Telephone Labor Inc	Low dispersion optical fiber
US3884550A (en) *	1973-01-04	1975-05-20	Corning Glass Works	Germania containing optical waveguide
DE2302556A1 (de) *	1973-01-19	1974-07-25	Licentia Gmbh	Verfahren zur herstellung von glasfasern zur lichtleitung
CA1050833A (en) *	1974-02-22	1979-03-20	John B. Macchesney	Optical fiber fabrication involving homogeneous reaction within a moving hot zone
JPS51138449A (en) *	1975-05-26	1976-11-30	Sumitomo Electric Ind Ltd	Light transmission fiber and method for fabricating the same
CA1063202A (en) *	1975-06-02	1979-09-25	Preformed Line Products Company	Cable suspension assembly
US4025156A (en) *	1975-09-12	1977-05-24	Bell Telephone Laboratories, Incorporated	Graded-index fiber for multimode optical communication
GB1554754A (en) *	1975-09-12	1979-10-31	Western Electric Co	Optical fibres
DE2647419C2 (de) *	1975-10-20	1981-09-17	Hitachi, Ltd., Tokyo	Optische Faser
JPS5288349A (en) *	1976-01-20	1977-07-23	Nippon Selfoc Co Ltd	Optical fiber for communication
GB1568521A (en) *	1976-04-06	1980-05-29	Standard Telephones Cables Ltd	Optical fibre manufacture
DE2741854B2 (de) *	1976-09-20	1981-03-19	Hitachi, Ltd., Tokyo	Verfahren zur Herstellung optischer Fasern
US4106850A (en) *	1977-04-04	1978-08-15	Bell Telephone Laboratories, Incorporated	Optical fiber with graded index core and pure silica cladding

1978
- 1978-07-31 US US05/929,416 patent/US4230396A/en not_active Expired - Lifetime
1979
- 1979-05-18 CA CA000327923A patent/CA1116450A/en not_active Expired
- 1979-07-26 ES ES482850A patent/ES482850A1/es not_active Expired
- 1979-07-26 IN IN772/CAL/79A patent/IN164661B/en unknown
- 1979-07-26 NL NL7905803A patent/NL7905803A/nl not_active Application Discontinuation
- 1979-07-26 DE DE19792930399 patent/DE2930399A1/de not_active Withdrawn
- 1979-07-26 IT IT24686/79A patent/IT1122360B/it active
- 1979-07-26 GB GB7926122A patent/GB2027929B/en not_active Expired
- 1979-07-26 FR FR7919330A patent/FR2432488A1/fr active Granted
- 1979-07-26 SE SE7906402A patent/SE7906402L/ not_active Application Discontinuation
- 1979-07-26 BE BE0/196460A patent/BE877901A/fr not_active IP Right Cessation
- 1979-07-26 DK DK316679A patent/DK316679A/da not_active Application Discontinuation
- 1979-07-26 IL IL57900A patent/IL57900A/xx unknown
- 1979-07-26 JP JP9555279A patent/JPS5521093A/ja active Pending
- 1979-07-26 FI FI792351A patent/FI792351A7/fi not_active Application Discontinuation
- 1979-07-26 BR BR7904786A patent/BR7904786A/pt unknown
- 1979-07-26 AU AU49283/79A patent/AU512858B2/en not_active Ceased
- 1979-07-26 NO NO792483A patent/NO792483L/no unknown
- 1979-07-27 YU YU01846/79A patent/YU184679A/xx unknown
1980
- 1980-04-10 ES ES490415A patent/ES490415A0/es active Granted

Also Published As

Publication number	Publication date
SE7906402L (sv)	1980-02-01
FR2432488A1 (fr)	1980-02-29
AU512858B2 (en)	1980-10-30
GB2027929A (en)	1980-02-27
ES8103390A1 (es)	1981-02-16
IL57900A (en)	1981-10-30
FR2432488B1 (it)	1985-03-01
NL7905803A (nl)	1980-02-04
IL57900A0 (en)	1979-11-30
GB2027929B (en)	1983-04-27
DE2930399A1 (de)	1980-02-28
YU184679A (en)	1983-06-30
DK316679A (da)	1980-02-01
CA1116450A (en)	1982-01-19
IN164661B (it)	1989-05-06
ES482850A1 (es)	1980-09-01
FI792351A7 (fi)	1981-01-01
BE877901A (fr)	1980-01-28
ES490415A0 (es)	1981-02-16
AU4928379A (en)	1980-02-07
JPS5521093A (en)	1980-02-14
US4230396A (en)	1980-10-28
BR7904786A (pt)	1980-05-13
IT7924686A0 (it)	1979-07-26
NO792483L (no)	1980-02-01

Publication	Publication Date	Title
IT7924686A0 (it)	1979-07-26	Filamento ottico, con indice a gradiente ad elevata larghezza di banda e metodo di fabbricazione.
IT7924685A0 (it)	1979-07-26	Filamento ottico ad elevato indice di gradiente della larghezza di banda e metodo per la fabbricazione dello stesso.
DK143481A (da)	1981-03-30	Fremgangsmaade til fremstilling af fibre
GB2022571B (en)	1982-08-25	Elliptical core optical fibre manufacture
IT1084527B (it)	1985-05-25	Connettore di fibre ottiche.
IT1075082B (it)	1985-04-22	Connettore di fibre ottiche
IT7927477A0 (it)	1979-11-22	Metodo di fabbricazione di preforme di fibre ottiche.
SE7904752L (sv)	1980-12-01	Fiberoptiskt metdon
AU511633B2 (en)	1980-08-28	Manufacturing optical fibres
IT1076871B (it)	1985-04-27	Connettore di fibre ottiche singole
JPS5316642A (en)	1978-02-15	Optical fiber splice
DK541779A (da)	1980-06-21	Fremgangsmaade til fremstilling af sammensatte fibre
NL186540C (nl)	1990-12-17	Optische vezel.
NL184415C (nl)	1989-07-17	Optische golfgeleider en werkwijze ter vervaardiging daarvan.
AU504970B2 (en)	1979-11-01	Optical fibre manufacture
DE3669787D1 (de)	1990-04-26	Herstellungsverfahren fuer optische faserbuendelelemente.
AU506010B2 (en)	1979-12-13	Optical fibre manufacture
IT7923808A0 (it)	1979-06-22	Procedimento di fabbricazione di preforme per fibre ottiche.
IT1077907B (it)	1985-05-04	Connettore di fibre ottiche
IT1085469B (it)	1985-05-28	Sintezizzatore di frequenza a fibre ottiche
JPS5319842A (en)	1978-02-23	Method of manufacturing optical fiber
ZA772271B (en)	1978-03-29	Manufacturing optical fibre connectors
FR2532062B1 (fr)	1987-07-17	Tube a fibres optiques ferme hermetiquement, son procede de fabrication et cable optique arme
GB1549928A (en)	1979-08-08	Optical fibre splice
NO801417L (no)	1980-11-17	Fremgangsmaate for fremstilling av fibre.