DE185361T1 - Verfahren und vorrichtung zur messung des brechungsindexprofils in monomode-licht-leitfasern. - Google Patents

Verfahren und vorrichtung zur messung des brechungsindexprofils in monomode-licht-leitfasern.

Info

Publication number
DE185361T1
DE185361T1 DE198585116102T DE85116102T DE185361T1 DE 185361 T1 DE185361 T1 DE 185361T1 DE 198585116102 T DE198585116102 T DE 198585116102T DE 85116102 T DE85116102 T DE 85116102T DE 185361 T1 DE185361 T1 DE 185361T1
Authority
DE
Germany
Prior art keywords
filter
axis
bundle
image
mask
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
DE198585116102T
Other languages
German (de)
English (en)
Inventor
Gianni Asti Coppa
Pietro Torino Di Vita
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Telecom Italia SpA
Original Assignee
CSELT Centro Studi e Laboratori Telecomunicazioni SpA
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 e Laboratori Telecomunicazioni SpA filed Critical CSELT Centro Studi e Laboratori Telecomunicazioni SpA
Publication of DE185361T1 publication Critical patent/DE185361T1/de
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
    • G01M11/30—Testing of optical devices, constituted by fibre optics or optical waveguides
    • G01M11/33—Testing of optical devices, constituted by fibre optics or optical waveguides with a light emitter being disposed at one fibre or waveguide end-face, and a light receiver at the other end-face
    • 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)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Optics & Photonics (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Light Guides In General And Applications Therefor (AREA)
DE198585116102T 1984-12-18 1985-12-17 Verfahren und vorrichtung zur messung des brechungsindexprofils in monomode-licht-leitfasern. Pending DE185361T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT68256/84A IT1179877B (it) 1984-12-18 1984-12-18 Procedimento e apparecchiatura per la misura del profilo d indice di rifrazione di fibre ottiche monomodo

Publications (1)

Publication Number Publication Date
DE185361T1 true DE185361T1 (de) 1988-04-28

Family

ID=11308714

Family Applications (2)

Application Number Title Priority Date Filing Date
DE198585116102T Pending DE185361T1 (de) 1984-12-18 1985-12-17 Verfahren und vorrichtung zur messung des brechungsindexprofils in monomode-licht-leitfasern.
DE8585116102T Expired DE3572395D1 (en) 1984-12-18 1985-12-17 Method of and apparatus for the measurement of the refractive-index profile in monomode optical fibres

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE8585116102T Expired DE3572395D1 (en) 1984-12-18 1985-12-17 Method of and apparatus for the measurement of the refractive-index profile in monomode optical fibres

Country Status (6)

Country Link
US (1) US4664516A (enExample)
EP (1) EP0185361B1 (enExample)
JP (1) JPS61148341A (enExample)
CA (1) CA1235923A (enExample)
DE (2) DE185361T1 (enExample)
IT (1) IT1179877B (enExample)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1182686B (it) * 1985-11-15 1987-10-05 Cselt Centro Studi Lab Telecom Procedimento ed apparecchiatura per la determinazione del raggio modale di fibre ottiche monomodo
GB8621418D0 (en) * 1986-09-05 1986-10-15 Sira Ltd Inspection apparatus
US4761057A (en) * 1987-02-19 1988-08-02 General Electric Company Aperture member for photo plotting apparatus
US5606435A (en) * 1995-12-22 1997-02-25 The United States Of America As Represented By The Secretary Of The Army Fiber optic-based correlating and sensing system
JP3072986B2 (ja) * 1998-10-12 2000-08-07 佐々木 一正 光ファイバ母材の内部屈折率分布測定法と測定装置
FR2945637B1 (fr) * 2009-05-18 2012-08-03 Univ Rennes Procede et systeme d'observation de modes transverses d'un guide optique.
WO2017120730A1 (zh) * 2016-01-11 2017-07-20 周瑾 用渐变孔径光学积分法测量单模光纤模场直径的新方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4515475A (en) * 1980-03-11 1985-05-07 National Research Development Corporation Measurement of refractive index profile

Also Published As

Publication number Publication date
EP0185361A3 (en) 1987-12-23
IT1179877B (it) 1987-09-16
CA1235923A (en) 1988-05-03
DE3572395D1 (en) 1989-09-21
JPH0325731B2 (enExample) 1991-04-08
US4664516A (en) 1987-05-12
JPS61148341A (ja) 1986-07-07
EP0185361A2 (en) 1986-06-25
EP0185361B1 (en) 1989-08-16
IT8468256A0 (it) 1984-12-18

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