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AU2003291953A1 - Method and device for ascertaining defects in optical fibers - Google Patents

Method and device for ascertaining defects in optical fibers

Info

Publication number
AU2003291953A1
AU2003291953A1 AU2003291953A AU2003291953A AU2003291953A1 AU 2003291953 A1 AU2003291953 A1 AU 2003291953A1 AU 2003291953 A AU2003291953 A AU 2003291953A AU 2003291953 A AU2003291953 A AU 2003291953A AU 2003291953 A1 AU2003291953 A1 AU 2003291953A1
Authority
AU
Australia
Prior art keywords
optical fibers
pulses
ascertaining
defects
shift register
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.)
Abandoned
Application number
AU2003291953A
Inventor
Stephan Schiemann
Gerald Werner
Mario Werner
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.)
FIBOTEC FIBEROPTICS GmbH
Original Assignee
FIBOTEC FIBEROPTICS GmbH
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 FIBOTEC FIBEROPTICS GmbH filed Critical FIBOTEC FIBEROPTICS GmbH
Publication of AU2003291953A1 publication Critical patent/AU2003291953A1/en
Abandoned 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
    • G01M11/3118—Reflectometers detecting the back-scattered light in the time-domain, e.g. OTDR using coded light-pulse sequences
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
    • H04B10/071—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using a reflected signal, e.g. using optical time domain reflectometers [OTDR]

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Optics & Photonics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)
  • Testing Of Optical Devices Or Fibers (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Optical Transform (AREA)

Abstract

The method involves sending and receiving digital binary pulse sequences controlled by a common clock and carrying out a pulse echo time analysis, converting the pulse sequences into optical pulses in a light source using the clock, emitting the light pulses while simultaneously feeding pulses into a shift register (43) for simultaneous comparison of sub-patterns after each stage of the shift register. AN Independent claim is also included for a method of determining defect locations in optical fibers.
AU2003291953A 2002-11-27 2003-11-26 Method and device for ascertaining defects in optical fibers Abandoned AU2003291953A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10255528 2002-11-27
DE10255528.1 2002-11-27
PCT/DE2003/003924 WO2004048920A1 (en) 2002-11-27 2003-11-26 Method and device for ascertaining defects in optical fibers

Publications (1)

Publication Number Publication Date
AU2003291953A1 true AU2003291953A1 (en) 2004-06-18

Family

ID=32318755

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2003291953A Abandoned AU2003291953A1 (en) 2002-11-27 2003-11-26 Method and device for ascertaining defects in optical fibers

Country Status (5)

Country Link
EP (1) EP1565718B1 (en)
AT (1) ATE459870T1 (en)
AU (1) AU2003291953A1 (en)
DE (3) DE10307542A1 (en)
WO (1) WO2004048920A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016008662A1 (en) * 2014-07-17 2016-01-21 Infibra Technologies S.R.L. Method and apparatus for measuring a distributed physical value of an optical device under test
EP3578946B1 (en) 2018-06-07 2020-11-04 ADVA Optical Networking SE Method and device of determining a time-of-flight of an optical signal between a starting point of an optical path and a reflection point within the optical path

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2190186B (en) * 1986-05-09 1990-12-19 Dr Jeremy Kenneth Arth Everard Greatly enhanced spatial detection of optical backscatter for sensor applications
GB9121226D0 (en) * 1991-10-04 1991-11-20 British Telecomm Monitoring system
GB9225782D0 (en) * 1992-12-10 1993-02-03 Marconi Gec Ltd Distance measuring arrangement
GB2292495B (en) * 1994-08-17 1998-03-25 Northern Telecom Ltd Fault location in optical communication systems
GB9524485D0 (en) * 1995-11-30 1996-01-31 Bicc Plc Device for interrogating an optical fibre network
US5969833A (en) * 1996-10-09 1999-10-19 Tyco Submarine Systems Ltd. Monitoring system using an optical side tone as a test signal

Also Published As

Publication number Publication date
EP1565718B1 (en) 2010-03-03
DE10307542A1 (en) 2004-06-17
DE50312486D1 (en) 2010-04-15
EP1565718A1 (en) 2005-08-24
WO2004048920A1 (en) 2004-06-10
DE10394116D2 (en) 2005-10-20
ATE459870T1 (en) 2010-03-15

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Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase