DE602005023500D1 - Verteilte rückstreuung - Google Patents

Verteilte rückstreuung

Info

Publication number
DE602005023500D1
DE602005023500D1 DE602005023500T DE602005023500T DE602005023500D1 DE 602005023500 D1 DE602005023500 D1 DE 602005023500D1 DE 602005023500 T DE602005023500 T DE 602005023500T DE 602005023500 T DE602005023500 T DE 602005023500T DE 602005023500 D1 DE602005023500 D1 DE 602005023500D1
Authority
DE
Germany
Prior art keywords
returned
test signals
link
inferring
distributed
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
DE602005023500T
Other languages
English (en)
Inventor
Edmund Sergio Robert Sikora
Peter Healey
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.)
British Telecommunications PLC
Original Assignee
British Telecommunications PLC
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 British Telecommunications PLC filed Critical British Telecommunications PLC
Publication of DE602005023500D1 publication Critical patent/DE602005023500D1/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
    • G01M11/3181—Reflectometers dealing with polarisation
    • 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]
DE602005023500T 2004-09-30 2005-09-26 Verteilte rückstreuung Active DE602005023500D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0421747.7A GB0421747D0 (en) 2004-09-30 2004-09-30 Distributed backscattering
PCT/GB2005/003680 WO2006035205A1 (en) 2004-09-30 2005-09-26 Distributed backscattering

Publications (1)

Publication Number Publication Date
DE602005023500D1 true DE602005023500D1 (de) 2010-10-21

Family

ID=33427829

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602005023500T Active DE602005023500D1 (de) 2004-09-30 2005-09-26 Verteilte rückstreuung

Country Status (6)

Country Link
US (1) US7995197B2 (de)
EP (1) EP1794905B1 (de)
AT (1) ATE480914T1 (de)
DE (1) DE602005023500D1 (de)
GB (1) GB0421747D0 (de)
WO (1) WO2006035205A1 (de)

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US11452153B2 (en) 2012-05-01 2022-09-20 Lisnr, Inc. Pairing and gateway connection using sonic tones
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US9377551B2 (en) * 2013-05-22 2016-06-28 Schlumberger Technology Corporation Method of borehole seismic surveying using an optical fiber
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JP6989703B2 (ja) 2017-07-26 2022-01-05 テッラ１５ プロプライエタリー リミテッド 分布光学センシングシステム及び方法
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Also Published As

Publication number Publication date
EP1794905A1 (de) 2007-06-13
EP1794905B1 (de) 2010-09-08
WO2006035205A1 (en) 2006-04-06
GB0421747D0 (en) 2004-11-03
US7995197B2 (en) 2011-08-09
ATE480914T1 (de) 2010-09-15
US20080278711A1 (en) 2008-11-13

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