NO155862C - Fremgangsmaate for aa eliminere den aksiale brytningsindeksnedsettingen ved optiske fibre. - Google Patents

Fremgangsmaate for aa eliminere den aksiale brytningsindeksnedsettingen ved optiske fibre.

Info

Publication number
NO155862C
NO155862C NO834524A NO834524A NO155862C NO 155862 C NO155862 C NO 155862C NO 834524 A NO834524 A NO 834524A NO 834524 A NO834524 A NO 834524A NO 155862 C NO155862 C NO 155862C
Authority
NO
Norway
Prior art keywords
eliminate
procedure
optical fibers
index reduction
axial
Prior art date
Application number
NO834524A
Other languages
English (en)
Norwegian (no)
Other versions
NO834524L (no
NO155862B (no
Inventor
Giacomo Roba
Original Assignee
Cselt Centro Studi Lab Telecom
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 Cselt Centro Studi Lab Telecom filed Critical Cselt Centro Studi Lab Telecom
Publication of NO834524L publication Critical patent/NO834524L/no
Publication of NO155862B publication Critical patent/NO155862B/no
Publication of NO155862C publication Critical patent/NO155862C/no

Links

Classifications

    • 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
    • C03B37/01869—Collapsing
    • 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Glass Melting And Manufacturing (AREA)
  • Optical Couplings Of Light Guides (AREA)
  • Microscoopes, Condenser (AREA)
NO834524A 1982-12-16 1983-12-08 Fremgangsmaate for aa eliminere den aksiale brytningsindeksnedsettingen ved optiske fibre. NO155862C (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT68476/82A IT1157146B (it) 1982-12-16 1982-12-16 Metodo per la compensazione del profilo di indice di rifrazione di fibre ottiche

Publications (3)

Publication Number Publication Date
NO834524L NO834524L (no) 1984-06-18
NO155862B NO155862B (no) 1987-03-02
NO155862C true NO155862C (no) 1987-06-10

Family

ID=11309531

Family Applications (1)

Application Number Title Priority Date Filing Date
NO834524A NO155862C (no) 1982-12-16 1983-12-08 Fremgangsmaate for aa eliminere den aksiale brytningsindeksnedsettingen ved optiske fibre.

Country Status (11)

Country Link
US (1) US4921516A (ja)
EP (1) EP0111901B1 (ja)
JP (1) JPS59111940A (ja)
AT (1) ATE23323T1 (ja)
BR (1) BR8306623A (ja)
CA (1) CA1246875A (ja)
DE (2) DE3367379D1 (ja)
DK (1) DK583183A (ja)
ES (1) ES8500193A1 (ja)
IT (1) IT1157146B (ja)
NO (1) NO155862C (ja)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5047076A (en) * 1988-12-07 1991-09-10 Sip - Societa Italiana Per L-Esercizio Delle Telecomunicazioni P.A. Method of fabricating optical fibres by solution-doping
EP0443781A1 (en) * 1990-02-23 1991-08-28 AT&T Corp. Method for doping optical fibers
CA2091711C (en) * 1992-03-17 2001-12-18 Shinji Ishikawa Method for producing glass thin film
US5522003A (en) 1993-03-02 1996-05-28 Ward; Robert M. Glass preform with deep radial gradient layer and method of manufacturing same
KR100624247B1 (ko) * 2004-07-02 2006-09-19 엘에스전선 주식회사 고속 근거리 전송망을 위한 다중모드 광섬유

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2463016C2 (de) * 1973-08-21 1982-05-06 International Standard Electric Corp., 10022 New York, N.Y. Verfahren zur Herstellung eines Glasfaser-Lichtleiters
US3961926A (en) * 1974-12-27 1976-06-08 International Telephone And Telegraph Corporation Preparation of germania cores in optical fibers
JPS53108445A (en) * 1977-03-03 1978-09-21 Fujitsu Ltd Preparation of glass for optical transmission wire
FR2410832A1 (fr) * 1977-11-30 1979-06-29 Comp Generale Electricite Procede de realisation d'une fibre optique
JPS5678804A (en) * 1979-11-30 1981-06-29 Fujitsu Ltd Focusing optical fiber and its production
IT1130481B (it) * 1980-06-16 1986-06-11 Cselt Centro Studi Lab Telecom Procedimento per la riduzione del contenuto di gruppi ossidrili in preforme per fibre ottiche realizzate secondo il metodo mcvd
US4304581A (en) * 1980-08-07 1981-12-08 Western Electric Co., Inc. Lightguide preform fabrication
DE3206144A1 (de) * 1982-02-20 1983-09-01 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Verfahren zur herstellung eines lichtwellenleiters
JPS6447136A (en) * 1987-08-18 1989-02-21 Toshiba Corp Satellite communication system

Also Published As

Publication number Publication date
EP0111901A1 (en) 1984-06-27
US4921516A (en) 1990-05-01
DE111901T1 (de) 1984-12-06
BR8306623A (pt) 1984-07-31
ATE23323T1 (de) 1986-11-15
JPS624332B2 (ja) 1987-01-29
EP0111901B1 (en) 1986-11-05
DE3367379D1 (en) 1986-12-11
DK583183A (da) 1984-06-17
NO834524L (no) 1984-06-18
ES527888A0 (es) 1984-10-01
JPS59111940A (ja) 1984-06-28
IT1157146B (it) 1987-02-11
IT8268476A0 (it) 1982-12-16
NO155862B (no) 1987-03-02
ES8500193A1 (es) 1984-10-01
DK583183D0 (da) 1983-12-16
CA1246875A (en) 1988-12-20

Similar Documents

Publication Publication Date Title
ATE19388T1 (de) Verfahren zur herstellung von lichtleitfasern.
GB1245891A (en) Improvements in or relating to optical transmission media
NO811998L (no) Fremgangsmaate for redusering av hydroksylgruppeinnholdet i forloepere for optiske fibre
IT1126375B (it) Metodo di fabbricazione di preforme di fibre ottiche
DE3460590D1 (en) Method of making a solid preform for drawing optical fibres
ES8104154A1 (es) Procedimiento e instalacion para la produccion de preformas para fibras opticas
DK0484211T3 (da) Fremgangsmåde og apparat til fremstilling af fibre ved intern centrifugering og anvendelse til fibrering af visse glasarter
NO155862C (no) Fremgangsmaate for aa eliminere den aksiale brytningsindeksnedsettingen ved optiske fibre.
DE3261900D1 (en) Production of optical fibres
IT7923808A0 (it) Procedimento di fabbricazione di preforme per fibre ottiche.
EP0356872A3 (de) Verfahren zum Ändern des Fleckdurchmessers von Monomode-Stufenfasern
ATE6492T1 (de) Verfahren zur herstellung optischer glasfasern.
GB1419872A (en) Clad optical fibres
ATE65984T1 (de) Verfahren zur herstellung von optischen fasern mittels einer kollabierten vorform.
JPS5767040A (en) Manufacture of long-sized preform rod
JPS51141646A (en) Method for manufacturing fiber for light communication
JPS5319036A (en) Preparation of fiber for optical transmission
ATE50759T1 (de) Verfahren zum herstellen einer vorform zum ziehen von lichtleitfasern.
JPS55142309A (en) Optical fiber connector
JPS56120539A (en) Optical transmission glass fiber and its manufacture
JPS5282248A (en) Jointing method for optical transmission glass fiber
ES8308084A3 (es) Metodo para producir una fibra optica.
JPS53136850A (en) Production of preform for optical transmission fibers
JPS5267645A (en) Method for producing light-transmitting fibers