ATE348323T1 - Faseroptische rückstreu-polarimetrie - Google Patents

Faseroptische rückstreu-polarimetrie

Info

Publication number
ATE348323T1
ATE348323T1 AT02771667T AT02771667T ATE348323T1 AT E348323 T1 ATE348323 T1 AT E348323T1 AT 02771667 T AT02771667 T AT 02771667T AT 02771667 T AT02771667 T AT 02771667T AT E348323 T1 ATE348323 T1 AT E348323T1
Authority
AT
Austria
Prior art keywords
optical fiber
polarisation
polarimetry
fiber optical
spatial distribution
Prior art date
Application number
AT02771667T
Other languages
English (en)
Inventor
Alan John Rogers
Original Assignee
Univ 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 Univ Surrey filed Critical Univ Surrey
Application granted granted Critical
Publication of ATE348323T1 publication Critical patent/ATE348323T1/de

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)
  • Length Measuring Devices By Optical Means (AREA)
  • Multicomponent Fibers (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
AT02771667T 2001-05-18 2002-05-09 Faseroptische rückstreu-polarimetrie ATE348323T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB0112161.5A GB0112161D0 (en) 2001-05-18 2001-05-18 Distributed fibre polarimetry for communications and sensing

Publications (1)

Publication Number Publication Date
ATE348323T1 true ATE348323T1 (de) 2007-01-15

Family

ID=9914873

Family Applications (1)

Application Number Title Priority Date Filing Date
AT02771667T ATE348323T1 (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
US7206469B2 (en) 2005-01-12 2007-04-17 Network Integrity Systems Inc. Intrusion detection system for use on single mode optical fiber using a 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
EP2392818A1 (de) * 2009-01-30 2011-12-07 Gamesa Innovation & Technology, S.L. System zur messung von deformationen bei windturbinenschaufeln während einer statischen prüfung
GB0912851D0 (en) * 2009-07-23 2009-08-26 Fotech Solutions Ltd Distributed optical fibre sensing
US8421890B2 (en) 2010-01-15 2013-04-16 Picofield Technologies, Inc. Electronic imager using an impedance sensor grid array and method of making
US8866347B2 (en) 2010-01-15 2014-10-21 Idex Asa Biometric image sensing
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
EP2958053A1 (de) 2012-04-10 2015-12-23 Idex Asa Biometrische erfassung
US10139433B2 (en) 2014-03-24 2018-11-27 Prysmian S.P.A. Method of measuring current distribution in high and medium voltage cables
US11199084B2 (en) 2016-04-07 2021-12-14 Bp Exploration Operating Company Limited Detecting downhole events using acoustic frequency domain features
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
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
CA3058256C (en) 2017-03-31 2023-09-12 Bp Exploration Operating Company Limited Well and overburden monitoring using distributed acoustic sensors
WO2019038401A1 (en) 2017-08-23 2019-02-28 Bp Exploration Operating Company Limited DETECTION OF SAND INPUT LOCATIONS AT THE BOTTOM OF A HOLE
EP3695099A2 (de) 2017-10-11 2020-08-19 BP Exploration Operating Company Limited Erkennung von ereignissen mit akustischen frequenzbereichsmerkmalen
AU2019386279A1 (en) 2018-11-29 2021-06-17 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
WO2021073740A1 (en) 2019-10-17 2021-04-22 Lytt Limited Inflow detection using dts features
WO2021073741A1 (en) 2019-10-17 2021-04-22 Lytt Limited Fluid inflow characterization using hybrid das/dts measurements
WO2021093974A1 (en) 2019-11-15 2021-05-20 Lytt Limited Systems and methods for draw down improvements across wellbores
EP4165284B1 (de) 2020-06-11 2024-08-07 Lytt Limited Systeme und verfahren zur charakterisierung von unterirdischen flüssigkeitsströmen
CA3182376A1 (en) 2020-06-18 2021-12-23 Cagri CERRAHOGLU Event model training using in situ data
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
GB0112161D0 (en) 2001-07-11
US7130496B2 (en) 2006-10-31
EP1390707B1 (de) 2006-12-13
DE60216752T8 (de) 2008-02-07
CA2447660A1 (en) 2002-11-28
JP2004525388A (ja) 2004-08-19
WO2002095349A1 (en) 2002-11-28
DE60216752D1 (de) 2007-01-25
DE60216752T2 (de) 2007-10-11
US20040136636A1 (en) 2004-07-15
JP4350380B2 (ja) 2009-10-21
EP1390707A1 (de) 2004-02-25

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