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IT1119485B - Perfezionamenti ai metodi determinazione dell indice di rifrazione di fibre ottiche - Google Patents

Perfezionamenti ai metodi determinazione dell indice di rifrazione di fibre ottiche

Info

Publication number
IT1119485B
IT1119485B IT69212/79A IT6921279A IT1119485B IT 1119485 B IT1119485 B IT 1119485B IT 69212/79 A IT69212/79 A IT 69212/79A IT 6921279 A IT6921279 A IT 6921279A IT 1119485 B IT1119485 B IT 1119485B
Authority
IT
Italy
Prior art keywords
determining
methods
refractive index
fiber optics
optics
Prior art date
Application number
IT69212/79A
Other languages
English (en)
Other versions
IT7969212A0 (it
Inventor
Di Pietro Vita
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
Priority to IT69212/79A priority Critical patent/IT1119485B/it
Publication of IT7969212A0 publication Critical patent/IT7969212A0/it
Priority to CA000363897A priority patent/CA1141188A/en
Priority to JP15524180A priority patent/JPS5676028A/ja
Priority to EP80106913A priority patent/EP0029195B1/en
Priority to DE8080106913T priority patent/DE3066520D1/de
Priority to US06/208,705 priority patent/US4349276A/en
Application granted granted Critical
Publication of IT1119485B publication Critical patent/IT1119485B/it

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/41—Refractivity; Phase-affecting properties, e.g. optical path length
    • G01N21/412—Index profiling of optical fibres

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
IT69212/79A 1979-11-15 1979-11-15 Perfezionamenti ai metodi determinazione dell indice di rifrazione di fibre ottiche IT1119485B (it)

Priority Applications (6)

Application Number Priority Date Filing Date Title
IT69212/79A IT1119485B (it) 1979-11-15 1979-11-15 Perfezionamenti ai metodi determinazione dell indice di rifrazione di fibre ottiche
CA000363897A CA1141188A (en) 1979-11-15 1980-11-03 Determination of the refractive index of optical fibres
JP15524180A JPS5676028A (en) 1979-11-15 1980-11-06 Improvement regarding decision of refractive index of optical fiber
EP80106913A EP0029195B1 (en) 1979-11-15 1980-11-10 Method of determining the refractive index profile of an optical fibre
DE8080106913T DE3066520D1 (en) 1979-11-15 1980-11-10 Method of determining the refractive index profile of an optical fibre
US06/208,705 US4349276A (en) 1979-11-15 1980-11-14 Method of and system for determining refractive-index profiles of optical fibers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT69212/79A IT1119485B (it) 1979-11-15 1979-11-15 Perfezionamenti ai metodi determinazione dell indice di rifrazione di fibre ottiche

Publications (2)

Publication Number Publication Date
IT7969212A0 IT7969212A0 (it) 1979-11-15
IT1119485B true IT1119485B (it) 1986-03-10

Family

ID=11311576

Family Applications (1)

Application Number Title Priority Date Filing Date
IT69212/79A IT1119485B (it) 1979-11-15 1979-11-15 Perfezionamenti ai metodi determinazione dell indice di rifrazione di fibre ottiche

Country Status (6)

Country Link
US (1) US4349276A (it)
EP (1) EP0029195B1 (it)
JP (1) JPS5676028A (it)
CA (1) CA1141188A (it)
DE (1) DE3066520D1 (it)
IT (1) IT1119485B (it)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3272281D1 (en) * 1981-05-07 1986-09-04 Plessey Overseas Optical apparatus for determining the index profile of an optical fibre
US4508461A (en) * 1981-09-22 1985-04-02 Westinghouse Electric Corp. Distributed fiber optic temperature monitoring apparatus and method
FR2514493A1 (fr) * 1981-10-12 1983-04-15 Alard F Procede et dispositif de mesure du diametre effectif du mode guide dans une fibre optique monomode
US4519704A (en) * 1982-03-18 1985-05-28 National Research Development Corporation Measurement of optical refractive index profiles
DE3327668A1 (de) * 1983-07-30 1985-02-07 Udo Dr Ing Unrau Anordnung zur selektiven modenanregung oder modenanalyse in gradientenfasern
IT1171039B (it) * 1983-11-10 1987-06-10 Cselt Centro Studi Lab Telecom Procedimento ed apparecchiatura per la misura dei monenti radiali del campo elettromagnetico associato a un fascio ottico
US4662743A (en) * 1985-11-01 1987-05-05 Sumitomo Electric Research Triangle, Inc. Method of measuring the geometry of optical fibers
US4779978A (en) * 1986-09-08 1988-10-25 Sumitomo Electric Research Triangle, Inc. Method of measuring the refractive index profile of optical fibers

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5831860B2 (ja) * 1977-05-27 1983-07-08 日本電信電話株式会社 光ファイバ遮断波長測定装置
JPS5435757A (en) * 1977-08-25 1979-03-16 Fujitsu Ltd Measuring method of refractive index distribution of optical fibers

Also Published As

Publication number Publication date
EP0029195A1 (en) 1981-05-27
US4349276A (en) 1982-09-14
DE3066520D1 (en) 1984-03-15
IT7969212A0 (it) 1979-11-15
CA1141188A (en) 1983-02-15
JPS5676028A (en) 1981-06-23
EP0029195B1 (en) 1984-02-08

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