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DE602005018818D1 - Erkennung einer störung bei der ausbreitung von licht in einem optischen wellenleiter - Google Patents

Erkennung einer störung bei der ausbreitung von licht in einem optischen wellenleiter

Info

Publication number
DE602005018818D1
DE602005018818D1 DE602005018818T DE602005018818T DE602005018818D1 DE 602005018818 D1 DE602005018818 D1 DE 602005018818D1 DE 602005018818 T DE602005018818 T DE 602005018818T DE 602005018818 T DE602005018818 T DE 602005018818T DE 602005018818 D1 DE602005018818 D1 DE 602005018818D1
Authority
DE
Germany
Prior art keywords
light
difference signal
pulses
optical fibre
intensity
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.)
Active
Application number
DE602005018818T
Other languages
English (en)
Inventor
Alan John Rogers
Sotiris Emil Kanellopoulos
Sergey Vladimir Shatalin
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.)
Fotech Solutions Ltd
Original Assignee
Fotech Solutions Ltd
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 Fotech Solutions Ltd filed Critical Fotech Solutions Ltd
Publication of DE602005018818D1 publication Critical patent/DE602005018818D1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • G01M11/3118—Reflectometers detecting the back-scattered light in the time-domain, e.g. OTDR using coded light-pulse sequences
    • 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
    • G01M11/3127—Reflectometers detecting the back-scattered light in the time-domain, e.g. OTDR using multiple or wavelength variable input source

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Transform (AREA)
  • Testing Of Optical Devices Or Fibers (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Mechanical Light Control Or Optical Switches (AREA)
  • Optical Couplings Of Light Guides (AREA)
DE602005018818T 2004-11-03 2005-11-03 Erkennung einer störung bei der ausbreitung von licht in einem optischen wellenleiter Active DE602005018818D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0424305.1A GB0424305D0 (en) 2004-11-03 2004-11-03 Phase-disturbance location and measurement in optical-fibre interferometric reflectometry
PCT/GB2005/004243 WO2006048647A2 (en) 2004-11-03 2005-11-03 Detecting a disturbance in the propagation of light in an optical waveguide

Publications (1)

Publication Number Publication Date
DE602005018818D1 true DE602005018818D1 (de) 2010-02-25

Family

ID=33515962

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602005018818T Active DE602005018818D1 (de) 2004-11-03 2005-11-03 Erkennung einer störung bei der ausbreitung von licht in einem optischen wellenleiter

Country Status (6)

Country Link
US (1) US7872736B2 (de)
EP (1) EP1817561B1 (de)
AT (1) ATE454617T1 (de)
DE (1) DE602005018818D1 (de)
GB (1) GB0424305D0 (de)
WO (1) WO2006048647A2 (de)

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Also Published As

Publication number Publication date
ATE454617T1 (de) 2010-01-15
US20080297772A1 (en) 2008-12-04
WO2006048647A3 (en) 2006-08-10
WO2006048647A2 (en) 2006-05-11
US7872736B2 (en) 2011-01-18
EP1817561A2 (de) 2007-08-15
EP1817561B1 (de) 2010-01-06
GB0424305D0 (en) 2004-12-01

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