NO20015514D0 - Storskala WDM/TDM sensorgruppe som benytter forsterkere med erbiumdopede fibere - Google Patents

Storskala WDM/TDM sensorgruppe som benytter forsterkere med erbiumdopede fibere

Info

Publication number
NO20015514D0
NO20015514D0 NO20015514A NO20015514A NO20015514D0 NO 20015514 D0 NO20015514 D0 NO 20015514D0 NO 20015514 A NO20015514 A NO 20015514A NO 20015514 A NO20015514 A NO 20015514A NO 20015514 D0 NO20015514 D0 NO 20015514D0
Authority
NO
Norway
Prior art keywords
amplifiers
optical
signal
distribution bus
buses
Prior art date
Application number
NO20015514A
Other languages
English (en)
Other versions
NO332666B1 (no
NO20015514L (no
Inventor
Craig W Hodgson
Benjamin J Vakoe
Original Assignee
Litton Systems Inc
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 Litton Systems Inc filed Critical Litton Systems Inc
Publication of NO20015514D0 publication Critical patent/NO20015514D0/no
Publication of NO20015514L publication Critical patent/NO20015514L/no
Publication of NO332666B1 publication Critical patent/NO332666B1/no

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H9/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means
    • G01H9/004—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means using fibre optic sensors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
    • G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
    • G01D5/353—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre
    • G01D5/35383—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre using multiple sensor devices using multiplexing techniques
NO20015514A 1999-05-13 2001-11-12 Storskala WDM/TDM sensorgruppe som benytter forsterkere med erbiumdopede fibere NO332666B1 (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/311,007 US6282334B1 (en) 1999-05-13 1999-05-13 Large scale WDM/TDM sensor array employing erbium-doped fiber amplifiers
PCT/US2000/001777 WO2000070308A1 (en) 1999-05-13 2000-01-24 Large scale wdm/tdm sensor array employing erbium-doped fiber amplifiers

Publications (3)

Publication Number Publication Date
NO20015514D0 true NO20015514D0 (no) 2001-11-12
NO20015514L NO20015514L (no) 2001-11-12
NO332666B1 NO332666B1 (no) 2012-12-03

Family

ID=23204978

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20015514A NO332666B1 (no) 1999-05-13 2001-11-12 Storskala WDM/TDM sensorgruppe som benytter forsterkere med erbiumdopede fibere

Country Status (8)

Country Link
US (1) US6282334B1 (no)
EP (1) EP1177412B1 (no)
AT (1) ATE479078T1 (no)
AU (1) AU3855100A (no)
CA (1) CA2369729C (no)
DE (1) DE60044868D1 (no)
NO (1) NO332666B1 (no)
WO (1) WO2000070308A1 (no)

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Publication number Priority date Publication date Assignee Title
US6667935B2 (en) 1998-04-03 2003-12-23 The Board Of Trustees Of The Leland Stanford Junior University Apparatus and method for processing optical signals from two delay coils to increase the dynamic range of a sagnac-based fiber optic sensor array
US6278657B1 (en) * 1998-04-03 2001-08-21 The Board Of Trustees Of The Leland Stanford Junior University Folded sagnac sensor array
US6678211B2 (en) 1998-04-03 2004-01-13 The Board Of Trustees Of The Leland Stanford Junior University Amplified tree structure technology for fiber optic sensor arrays
US6507679B1 (en) * 1999-05-13 2003-01-14 Litton Systems, Inc. Long distance, all-optical telemetry for fiber optic sensor using remote optically pumped EDFAs
US6429964B1 (en) * 1999-09-24 2002-08-06 Agere Systems Guardian Corp. High power, multiple-tap co-doped optical amplifier
US6735392B1 (en) * 1999-10-18 2004-05-11 Nortel Networks Limited System and method for transmitting and restoring an optical signal
US6728165B1 (en) 1999-10-29 2004-04-27 Litton Systems, Inc. Acoustic sensing system for downhole seismic applications utilizing an array of fiber optic sensors
US6724319B1 (en) 1999-10-29 2004-04-20 Litton Systems, Inc. Acoustic sensing system for downhole seismic applications utilizing an array of fiber optic sensors
US7184670B2 (en) * 2000-05-10 2007-02-27 Lockheed Martin Corporation Telemetry system and method for acoustic arrays
JP4184266B2 (ja) * 2001-08-10 2008-11-19 ザ・ボード・オブ・トラスティーズ・オブ・ザ・レランド・スタンフォード・ジュニア・ユニバーシティ 光ファイバセンサアレイのための増幅ツリー構造技術
CN1330119C (zh) * 2001-11-11 2007-08-01 华为技术有限公司 一种用于高速传输系统的光信号调节方法及光传输系统
GB0128588D0 (en) * 2001-11-29 2002-01-23 Qinetiq Ltd Coherent laser radar apparatus
WO2003084082A2 (en) * 2002-03-29 2003-10-09 Celion Networks, Inc. Distributed terminal optical transmission system
US7075712B2 (en) 2002-05-30 2006-07-11 Fujitsu Limited Combining and distributing amplifiers for optical network and method
US7085496B2 (en) 2002-05-30 2006-08-01 Fujitsu Limited Passive add/drop amplifier for optical networks and method
US7092587B1 (en) * 2002-08-16 2006-08-15 Raytheon Company Multichannel optical demultiplexer with varying angles of incidence to the light bandpass filters
DE20302615U1 (de) * 2003-02-17 2004-07-15 Tower Automotive Gmbh & Co. Kg Hohlformteil mit geschlossenem Querschnitt und einer Verstärkung
US6995683B2 (en) * 2004-03-12 2006-02-07 Welldynamics, Inc. System and method for transmitting downhole data to the surface
FR2889305B1 (fr) * 2005-07-28 2007-10-19 Sercel Sa Reseau d'interferometres a fibre optique
US7526147B2 (en) * 2005-08-31 2009-04-28 Northrop Grumman, Inc. Sensor array for perimeter defense
GB0606010D0 (en) * 2006-03-25 2006-05-03 Qinetiq Ltd Fibre-Optic Sensor Array
TW200827798A (en) * 2006-12-20 2008-07-01 Inventec Multimedia & Telecom Switching device of light-beam channel of optical fiber network
GB2478915B (en) * 2010-03-22 2012-11-07 Stingray Geophysical Ltd Sensor array
US9146151B2 (en) 2010-11-18 2015-09-29 Optasense, Inc. Pulse labeling for high-bandwidth fiber-optic distributed acoustic sensing with reduced cross-talk
US9234790B2 (en) 2012-03-19 2016-01-12 The Board Of Trustees Of The Leland Stanford Junior University Apparatus and methods utilizing optical sensors operating in the reflection mode
GB2517859A (en) * 2012-05-04 2015-03-04 Us Seismic Systems Inc Fiber optic sensing systems and methods of operating the same
US9366691B2 (en) 2013-05-02 2016-06-14 Halliburton Energy Services, Inc. Multiplexed fiber optic sensing system and method
CN103954307B (zh) * 2014-04-29 2016-09-21 中国人民解放军海军工程大学 光纤激光传感器时分、波分联合复用方法
CN108303626B (zh) * 2018-03-09 2024-04-12 广东电网有限责任公司珠海供电局 基于分布式光纤传感阵列的局部放电超声测量系统与方法
CN114509095B (zh) * 2022-02-22 2023-12-12 武汉光迅科技股份有限公司 传感系统

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5796504A (en) 1996-03-13 1998-08-18 Hughes Electronics Fiber-optic telemetry system and method for large arrays of sensors
US5866898A (en) 1996-07-12 1999-02-02 The Board Of Trustees Of The Leland Stanford Junior University Time domain multiplexed amplified sensor array with improved signal to noise ratios
US5696857A (en) * 1996-07-25 1997-12-09 Litton Systems, Inc. WDM/FDM fiber optic sensor architecture using WDM tap coupler
US6097486A (en) * 1998-04-03 2000-08-01 The Board Of Trustees Of The Leland Stanford Junior University Fiber optic acoustic sensor array based on Sagnac interferometer
US6034924A (en) * 1998-04-03 2000-03-07 The Board Of Trustees Of The Leland Stanford Junior Univerisity Folded sagnac sensor array

Also Published As

Publication number Publication date
DE60044868D1 (de) 2010-10-07
EP1177412A1 (en) 2002-02-06
CA2369729A1 (en) 2000-11-23
ATE479078T1 (de) 2010-09-15
NO332666B1 (no) 2012-12-03
NO20015514L (no) 2001-11-12
AU3855100A (en) 2000-12-05
CA2369729C (en) 2008-12-30
WO2000070308A1 (en) 2000-11-23
US6282334B1 (en) 2001-08-28
EP1177412B1 (en) 2010-08-25

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