FR2435026B1 - - Google Patents

Info

Publication number
FR2435026B1
FR2435026B1 FR7906535A FR7906535A FR2435026B1 FR 2435026 B1 FR2435026 B1 FR 2435026B1 FR 7906535 A FR7906535 A FR 7906535A FR 7906535 A FR7906535 A FR 7906535A FR 2435026 B1 FR2435026 B1 FR 2435026B1
Authority
FR
France
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.)
Expired
Application number
FR7906535A
Other languages
French (fr)
Other versions
FR2435026A1 (fr
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.)
Felten and Guilleaume Carlswerk AG
Original Assignee
Felten and Guilleaume Carlswerk AG
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 Felten and Guilleaume Carlswerk AG filed Critical Felten and Guilleaume Carlswerk AG
Publication of FR2435026A1 publication Critical patent/FR2435026A1/fr
Application granted granted Critical
Publication of FR2435026B1 publication Critical patent/FR2435026B1/fr
Granted 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
    • G01M11/31—Testing of optical devices, constituted by fibre optics or optical waveguides with a light emitter and a light receiver being disposed at the same side of a fibre or waveguide end-face, e.g. reflectometers
    • G01M11/3109—Reflectometers detecting the back-scattered light in the time-domain, e.g. OTDR
    • G01M11/3145—Details of the optoelectronics or data analysis

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Testing Of Optical Devices Or Fibers (AREA)
FR7906535A 1978-08-31 1979-03-14 Reflectometre optique a domaine de temps pour determiner l'amortissement de fibres conductrices de la lumiere Granted FR2435026A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2837981A DE2837981C2 (de) 1978-08-31 1978-08-31 Optisches Zeitbereichs-Reflektometer zur Bestimmung der Dämpfung von Lichtleitfasern

Publications (2)

Publication Number Publication Date
FR2435026A1 FR2435026A1 (fr) 1980-03-28
FR2435026B1 true FR2435026B1 (ja) 1984-06-15

Family

ID=6048345

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7906535A Granted FR2435026A1 (fr) 1978-08-31 1979-03-14 Reflectometre optique a domaine de temps pour determiner l'amortissement de fibres conductrices de la lumiere

Country Status (6)

Country Link
CH (1) CH636960A5 (ja)
DE (1) DE2837981C2 (ja)
FR (1) FR2435026A1 (ja)
GB (1) GB2033078B (ja)
IT (1) IT1112188B (ja)
SE (1) SE444731B (ja)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2945055C2 (de) * 1979-11-08 1982-09-02 Philips Kommunikations Industrie Ag, 8500 Nuernberg Verfahren und Vorrichtung zum Konstanthalten der in einer Lichtleitfaser geführten Lichtleistung
DE3115200A1 (de) * 1981-04-15 1983-02-03 Philips Kommunikations Industrie AG, 8500 Nürnberg Verfahren zur messung von impulslaufzeiten, fehlerorten und daempfung auf kabeln und lichtwellenleitern
GB2122337B (en) * 1982-05-18 1985-11-13 Nat Res Dev Fibre optic sensing device
GB2138234B (en) * 1983-04-14 1986-10-08 Standard Telephones Cables Ltd Coherent reflectometer
SE456190B (sv) * 1983-10-14 1988-09-12 Ericsson Telefon Ab L M Forfarande att i ett fiberoptiskt transmissionssystem meta dispersionen hos den transmitterande optiska fibern
GB2198524B (en) * 1986-12-11 1990-08-29 Plessey Co Plc Improvements relating to optical sensing systems
DE4328486A1 (de) * 1993-08-24 1995-03-02 Siemens Ag Überwachung optischer Einfaser-Anschlußleitungen bis zu einer passiven Schnittstelle

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2620357A1 (de) * 1976-05-06 1977-11-17 Aeg Telefunken Kabelwerke Daempfungsmessung in lichtleitern

Also Published As

Publication number Publication date
IT7920298A0 (it) 1979-02-16
FR2435026A1 (fr) 1980-03-28
GB2033078B (en) 1983-05-11
DE2837981A1 (de) 1980-03-06
SE7907153L (sv) 1980-03-01
IT1112188B (it) 1986-01-13
SE444731B (sv) 1986-04-28
DE2837981C2 (de) 1986-01-30
GB2033078A (en) 1980-05-14
CH636960A5 (de) 1983-06-30

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Legal Events

Date Code Title Description
ST Notification of lapse