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DE60216752D1 - Faseroptische rückstreu-polarimetrie - Google Patents

Faseroptische rückstreu-polarimetrie

Info

Publication number
DE60216752D1
DE60216752D1 DE60216752T DE60216752T DE60216752D1 DE 60216752 D1 DE60216752 D1 DE 60216752D1 DE 60216752 T DE60216752 T DE 60216752T DE 60216752 T DE60216752 T DE 60216752T DE 60216752 D1 DE60216752 D1 DE 60216752D1
Authority
DE
Germany
Prior art keywords
optical fiber
polarisation
polarimetry
retrofit
fiber optic
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.)
Expired - Lifetime
Application number
DE60216752T
Other languages
English (en)
Other versions
DE60216752T2 (de
DE60216752T8 (de
Inventor
John Rogers
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
University of Surrey
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 University of Surrey filed Critical University of Surrey
Application granted granted Critical
Publication of DE60216752D1 publication Critical patent/DE60216752D1/de
Publication of DE60216752T2 publication Critical patent/DE60216752T2/de
Publication of DE60216752T8 publication Critical patent/DE60216752T8/de
Active 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
    • G01M11/3181—Reflectometers dealing with polarisation

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Artificial Filaments (AREA)
  • Dental Preparations (AREA)
  • Testing Of Optical Devices Or Fibers (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Multicomponent Fibers (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
DE60216752T 2001-05-18 2002-05-09 Faseroptische rückstreu-polarimetrie Active DE60216752T8 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB0112161 2001-05-18
GBGB0112161.5A GB0112161D0 (en) 2001-05-18 2001-05-18 Distributed fibre polarimetry for communications and sensing
PCT/GB2002/002138 WO2002095349A1 (en) 2001-05-18 2002-05-09 Optical fibre backscatter polarimetry

Publications (3)

Publication Number Publication Date
DE60216752D1 true DE60216752D1 (de) 2007-01-25
DE60216752T2 DE60216752T2 (de) 2007-10-11
DE60216752T8 DE60216752T8 (de) 2008-02-07

Family

ID=9914873

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60216752T Active DE60216752T8 (de) 2001-05-18 2002-05-09 Faseroptische rückstreu-polarimetrie

Country Status (8)

Country Link
US (1) US7130496B2 (de)
EP (1) EP1390707B1 (de)
JP (1) JP4350380B2 (de)
AT (1) ATE348323T1 (de)
CA (1) CA2447660A1 (de)
DE (1) DE60216752T8 (de)
GB (1) GB0112161D0 (de)
WO (1) WO2002095349A1 (de)

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US7173690B2 (en) 2003-07-03 2007-02-06 Senstar-Stellar Corporation Method and apparatus using polarisation optical time domain reflectometry for security applications
RU2339982C2 (ru) * 2003-10-22 2008-11-27 Фудзикура Лтд. Оптическое волокно и способ измерения поляризационной модовой дисперсии оптического волокна
US7697729B2 (en) 2004-01-29 2010-04-13 Authentec, Inc. System for and method of finger initiated actions
US7693359B2 (en) 2005-01-12 2010-04-06 Network Integrity Systems, Inc. Intrusion detection system for use on single mode optical fiber using a cost reduced polarimeter
US7142737B1 (en) 2005-01-12 2006-11-28 Network Integrity Systems Inc. Intrusion detection system for use on single mode optical fiber using a storage register for data
US7831070B1 (en) 2005-02-18 2010-11-09 Authentec, Inc. Dynamic finger detection mechanism for a fingerprint sensor
US8231056B2 (en) 2005-04-08 2012-07-31 Authentec, Inc. System for and method of protecting an integrated circuit from over currents
JP4781746B2 (ja) * 2005-04-14 2011-09-28 株式会社フジクラ 光ファイバの複屈折測定方法及び測定装置及び光ファイバの偏波モード分散測定方法
KR100832470B1 (ko) 2005-04-14 2008-05-26 가부시키가이샤후지쿠라 광섬유의 복굴절 측정 방법 및 측정 장치, 광섬유의 편파모드 분산 측정 방법 및 광섬유
US7164469B1 (en) 2005-06-30 2007-01-16 Corning Incorporated Method of evaluating fiber PMD using composite POTDR trace
JP4554476B2 (ja) * 2005-08-30 2010-09-29 財団法人電力中央研究所 生体活動監視方法と、これに用いる光ファイバ式平板状体センサ
US7190442B1 (en) 2005-08-31 2007-03-13 Corning Incorporated Method of evaluating fiber PMD using POTDR trace
US8364034B2 (en) * 2007-04-05 2013-01-29 Exfo Inc. In-band optical noise measurement using differential polarization response
CA2684152C (en) 2007-04-05 2017-05-09 Exfo Electro-Optical Engineering Inc. Method and system for determining in-band optical noise
JP4770913B2 (ja) * 2008-11-13 2011-09-14 横河電機株式会社 光ファイバ特性測定装置および光ファイバ特性測定方法
GB0823306D0 (en) 2008-12-22 2009-01-28 Rogers Alan Frequency-mapped distributed presure measurement
US8605263B2 (en) * 2009-01-30 2013-12-10 Gamesa Innovation & Technology, S.L. Wind turbine blades strain measuring system during static tests
GB0912851D0 (en) * 2009-07-23 2009-08-26 Fotech Solutions Ltd Distributed optical fibre sensing
US8866347B2 (en) 2010-01-15 2014-10-21 Idex Asa Biometric image sensing
US8421890B2 (en) 2010-01-15 2013-04-16 Picofield Technologies, Inc. Electronic imager using an impedance sensor grid array and method of making
US9158958B2 (en) 2010-10-28 2015-10-13 Synaptics Incorporated Signal strength enhancement in a biometric sensor array
GB201019117D0 (en) 2010-11-11 2010-12-29 Fotech Solutions Ltd Distributed optical fibre sensor
US20130279769A1 (en) 2012-04-10 2013-10-24 Picofield Technologies Inc. Biometric Sensing
EP3123138A1 (de) 2014-03-24 2017-02-01 Prysmian S.p.A. Verfahren zur messung der stromverteilung in hoch- und mittelspannungskabeln
BR112018070565A2 (pt) 2016-04-07 2019-02-12 Bp Exploration Operating Company Limited detecção de eventos de fundo de poço usando características de domínio da frequência acústicas
CA3020223A1 (en) 2016-04-07 2017-10-12 Bp Exploration Operating Company Limited Detecting downhole sand ingress locations
CN106289726B (zh) * 2016-07-14 2018-08-24 北京航空航天大学 一种光子带隙光纤背向散射分布式测量方法及装置
EP3583296B1 (de) 2017-03-31 2021-07-21 BP Exploration Operating Company Limited Bohrloch- und abraumüberwachung mithilfe verteilter akustiksensoren
BR112020003742A2 (pt) 2017-08-23 2020-09-01 Bp Exploration Operating Company Limited detecção de localizações de ingresso de areia em fundo de poço
CN111771042A (zh) 2017-10-11 2020-10-13 英国石油勘探运作有限公司 使用声学频域特征来检测事件
CA3120164A1 (en) 2018-11-29 2020-06-04 Bp Exploration Operating Company Limited Event detection using das features with machine learning
GB201820331D0 (en) 2018-12-13 2019-01-30 Bp Exploration Operating Co Ltd Distributed acoustic sensing autocalibration
EP4045766A1 (de) 2019-10-17 2022-08-24 Lytt Limited Flüssigkeitszuflusscharakterisierung unter verwendung von hybriden das/dts-messungen
WO2021073740A1 (en) 2019-10-17 2021-04-22 Lytt Limited Inflow detection using dts features
WO2021093974A1 (en) 2019-11-15 2021-05-20 Lytt Limited Systems and methods for draw down improvements across wellbores
WO2021249643A1 (en) 2020-06-11 2021-12-16 Lytt Limited Systems and methods for subterranean fluid flow characterization
EP4168647A1 (de) 2020-06-18 2023-04-26 Lytt Limited Ereignismodelltraining unter verwendung von in-situ-daten
IT202200004667A1 (it) 2022-03-11 2022-06-11 Sestosensor S R L Rivelatore di fase e polarizzazione per sensori acustici distribuiti a fibre ottiche ed interrogatore basato sullo stesso

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8622609D0 (en) * 1986-09-19 1986-10-22 Rogers A J Optical fibres
US4840481A (en) * 1987-12-10 1989-06-20 Simmonds Precision Polarimetric optical frequency domain distributed strain sensor and method

Also Published As

Publication number Publication date
DE60216752T2 (de) 2007-10-11
ATE348323T1 (de) 2007-01-15
EP1390707B1 (de) 2006-12-13
CA2447660A1 (en) 2002-11-28
US20040136636A1 (en) 2004-07-15
DE60216752T8 (de) 2008-02-07
US7130496B2 (en) 2006-10-31
WO2002095349A1 (en) 2002-11-28
JP2004525388A (ja) 2004-08-19
JP4350380B2 (ja) 2009-10-21
EP1390707A1 (de) 2004-02-25
GB0112161D0 (en) 2001-07-11

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: FOTECH SOLUTIONS LTD.,, LONDON, GB