FR2853481B1 - Procede de mesure par otdr et appareil de station terminale - Google Patents

Procede de mesure par otdr et appareil de station terminale

Info

Publication number
FR2853481B1
FR2853481B1 FR0402566A FR0402566A FR2853481B1 FR 2853481 B1 FR2853481 B1 FR 2853481B1 FR 0402566 A FR0402566 A FR 0402566A FR 0402566 A FR0402566 A FR 0402566A FR 2853481 B1 FR2853481 B1 FR 2853481B1
Authority
FR
France
Prior art keywords
station apparatus
measurement method
terminal station
otdr measurement
otdr
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
FR0402566A
Other languages
English (en)
Other versions
FR2853481A1 (fr
Inventor
Takayuki Maehara
Shinichirou Harasawa
Gentaro Funatsu
Hideki Maeda
Akira Naka
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.)
Fujitsu Ltd
Nippon Telegraph and Telephone Corp
Original Assignee
Fujitsu Ltd
Nippon Telegraph and Telephone Corp
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 Fujitsu Ltd, Nippon Telegraph and Telephone Corp filed Critical Fujitsu Ltd
Publication of FR2853481A1 publication Critical patent/FR2853481A1/fr
Application granted granted Critical
Publication of FR2853481B1 publication Critical patent/FR2853481B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • H04B10/29—Repeaters
    • H04B10/291—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form
    • H04B10/2912—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form characterised by the medium used for amplification or processing
    • H04B10/2916—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form characterised by the medium used for amplification or processing using Raman or Brillouin amplifiers
    • 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)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)
  • Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
  • Testing Of Optical Devices Or Fibers (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
FR0402566A 2003-03-14 2004-03-12 Procede de mesure par otdr et appareil de station terminale Expired - Lifetime FR2853481B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003070318A JP3961973B2 (ja) 2003-03-14 2003-03-14 Ｏｔｄｒによる測定方法及び端局装置

Publications (2)

Publication Number Publication Date
FR2853481A1 FR2853481A1 (fr) 2004-10-08
FR2853481B1 true FR2853481B1 (fr) 2011-05-06

Family

ID=32171457

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0402566A Expired - Lifetime FR2853481B1 (fr) 2003-03-14 2004-03-12 Procede de mesure par otdr et appareil de station terminale

Country Status (4)

Country Link
US (2) US7215415B2 (fr)
JP (1) JP3961973B2 (fr)
FR (1) FR2853481B1 (fr)
GB (1) GB2400763B (fr)

Families Citing this family (82)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3934529B2 (ja) * 2002-10-30 2007-06-20 富士通株式会社 波長多重光通信システム
JP4184046B2 (ja) * 2002-11-18 2008-11-19 富士通株式会社 ラマン増幅器
JP3961973B2 (ja) * 2003-03-14 2007-08-22 富士通株式会社 Ｏｔｄｒによる測定方法及び端局装置
EP1469621B1 (fr) * 2003-04-14 2005-09-07 Alcatel Amplificateur optique Raman et procédé de modulation de pompe
US8194238B1 (en) * 2006-02-14 2012-06-05 Killdeer Mountain Manufacturing, Inc. Optical sensor component identification and interrogation system
EP1876435A1 (fr) * 2006-07-06 2008-01-09 Agilent Technologies, Inc. Mesure des pertes optiques par réflectrométrie optique
EP3192876A1 (fr) 2007-10-10 2017-07-19 Pocared Diagnostics Ltd. Système permettant d'effectuer l'identification de bactéries dans l'urine
JP5309160B2 (ja) 2008-02-05 2013-10-09 ポカード・ディアグノスティクス・リミテッド 生体サンプル中のバクテリアの同定を行うシステム
JP2009276287A (ja) * 2008-05-16 2009-11-26 Kansai Electric Power Co Inc:The ラマン利得効率測定方法および装置
US8309897B2 (en) * 2009-02-06 2012-11-13 Pocared Diagnostics Ltd. Optical measurement arrangement
ES2388629B1 (es) * 2009-05-22 2013-08-27 Consejo Superior De Investigaciones Científicas (Csic) Sistema para la mejora del rango dinámico y la reducción de la incertidumbre de medida en sensores distribuidos sobre fibra óptica.
US10288632B2 (en) * 2009-09-21 2019-05-14 Pocared Diagnostics Ltd. System for conducting the identification of bacteria in biological samples
CN101917226B (zh) * 2010-08-23 2016-03-02 中兴通讯股份有限公司 一种在无源光网络中进行光纤故障诊断的方法及光线路终端
US8804114B2 (en) 2010-11-03 2014-08-12 Pocared Diagnostics Ltd. Optical cup
US8651726B2 (en) 2010-11-19 2014-02-18 Reald Inc. Efficient polarized directional backlight
WO2012068532A2 (fr) 2010-11-19 2012-05-24 Reald Inc. Illuminateurs plats directionnels
US9250448B2 (en) 2010-11-19 2016-02-02 Reald Inc. Segmented directional backlight and related methods of backlight illumination
US20140041205A1 (en) 2010-11-19 2014-02-13 Reald Inc. Method of manufacturing directional backlight apparatus and directional structured optical film
JP5627427B2 (ja) * 2010-12-08 2014-11-19 三菱電機株式会社 波長多重伝送装置及び波長多重伝送システム
WO2013028944A1 (fr) 2011-08-24 2013-02-28 Reald Inc. Dispositif d'affichage auto-stéréoscopique à plaque d'onde diffractante cycloïdale passive
JP5838748B2 (ja) * 2011-11-15 2016-01-06 富士通株式会社 光伝送システム、励起光供給制御方法及び励起光供給装置
US9001423B2 (en) 2012-07-23 2015-04-07 Reald Inc. Temporally multiplexed display with landscape and portrait operation modes
US10054732B2 (en) 2013-02-22 2018-08-21 Reald Spark, Llc Directional backlight having a rear reflector
US9188731B2 (en) 2012-05-18 2015-11-17 Reald Inc. Directional backlight
US9350980B2 (en) 2012-05-18 2016-05-24 Reald Inc. Crosstalk suppression in a directional backlight
CN108089340B (zh) 2012-05-18 2021-08-10 瑞尔D斯帕克有限责任公司 定向显示设备
US9594261B2 (en) 2012-05-18 2017-03-14 Reald Spark, Llc Directionally illuminated waveguide arrangement
US9235057B2 (en) 2012-05-18 2016-01-12 Reald Inc. Polarization recovery in a directional display device
US9678267B2 (en) 2012-05-18 2017-06-13 Reald Spark, Llc Wide angle imaging directional backlights
CN104380185B (zh) 2012-05-18 2017-07-28 瑞尔D斯帕克有限责任公司 定向背光源
EP2850482B1 (fr) 2012-05-18 2022-07-27 RealD Spark, LLC Commande de sources de lumière d'un rétroéclairage directionnel
US9140624B2 (en) 2012-07-03 2015-09-22 Ciena Corporation Systems and methods reducing coherence effect in narrow line-width light sources
EP2875638A4 (fr) * 2012-07-23 2016-03-30 Reald Inc Affichage stéréoscopique automatique de suivi d'observateur
US9148710B2 (en) * 2012-09-19 2015-09-29 Ciena Corporation Raman amplifier system and method with integrated optical time domain reflectometer
EP2931915B1 (fr) 2012-12-11 2022-08-03 Pocared Diagnostics Ltd. Cuvette optique à fond incurvé
CN105008983B (zh) 2012-12-21 2018-08-07 瑞尔D斯帕克有限责任公司 用于定向显示器的超透镜组件
CN105474633B (zh) 2013-06-17 2019-07-09 瑞尔D斯帕克有限责任公司 控制定向背光的光源
EP3058562A4 (fr) 2013-10-14 2017-07-26 RealD Spark, LLC Commande d'affichage directionnel
EP3058422B1 (fr) 2013-10-14 2019-04-24 RealD Spark, LLC Entrée de lumière pour rétroéclairage directionnel
WO2015073438A1 (fr) 2013-11-15 2015-05-21 Reald Inc. Rétroéclairages directionnels avec des boîtiers d'éléments émetteurs de lumière
WO2015200814A1 (fr) 2014-06-26 2015-12-30 Reald Inc. Dispositif d'affichage intime directionnel
US9835792B2 (en) 2014-10-08 2017-12-05 Reald Spark, Llc Directional backlight
WO2016105541A1 (fr) 2014-12-24 2016-06-30 Reald Inc. Réglage de la rotondité perçue dans une image stéréoscopique d'une tête
US9503181B2 (en) 2015-01-06 2016-11-22 Ii-Vi Incorporated Rare earth-doped fiber amplifier with integral optical metrology functionality
RU2596062C1 (ru) 2015-03-20 2016-08-27 Автономная Некоммерческая Образовательная Организация Высшего Профессионального Образования "Сколковский Институт Науки И Технологий" Способ коррекции изображения глаз с использованием машинного обучения и способ машинного обучения
US10359560B2 (en) 2015-04-13 2019-07-23 Reald Spark, Llc Wide angle imaging directional backlights
EP3304188B1 (fr) 2015-05-27 2020-10-07 RealD Spark, LLC Rétroéclairages directionnels d'imagerie à grand angle
US10475418B2 (en) 2015-10-26 2019-11-12 Reald Spark, Llc Intelligent privacy system, apparatus, and method thereof
CN106656320B (zh) * 2015-10-29 2019-04-12 阿里巴巴集团控股有限公司 用于光量子通信业务的光纤信道损耗测量系统、方法及装置
WO2017083526A1 (fr) 2015-11-10 2017-05-18 Reald Inc. Systèmes de conversion de polarisation par mise en correspondance de distorsions et procédés associés
EP3374822B1 (fr) 2015-11-13 2023-12-27 RealD Spark, LLC Éléments de surface pour rétroéclairages directionnels d'imagerie
CN108463667B (zh) 2015-11-13 2020-12-01 瑞尔D斯帕克有限责任公司 广角成像定向背光源
CA3006971A1 (fr) * 2015-12-03 2017-06-08 The Arizona Board Of Regents On Behalf Of The University Of Arizona Sondage rapide de qualite de signal dans un reseau wdm
CN114143495A (zh) 2016-01-05 2022-03-04 瑞尔D斯帕克有限责任公司 多视角图像的注视校正
US9941957B2 (en) * 2016-01-07 2018-04-10 Luxtera, Inc. Method and system for connectionless integrated optical receiver and transmitter test
EP3217574A1 (fr) * 2016-03-09 2017-09-13 Xieon Networks S.à r.l. Communication bidirectionnelle et appareil de pompage raman directionnel configurable
CN114554177A (zh) 2016-05-19 2022-05-27 瑞尔D斯帕克有限责任公司 广角成像定向背光源
US10425635B2 (en) 2016-05-23 2019-09-24 Reald Spark, Llc Wide angle imaging directional backlights
US10476587B2 (en) 2016-05-31 2019-11-12 Alibaba Group Holding Limited System and method for enhancing reliability in a transport network
US10401638B2 (en) 2017-01-04 2019-09-03 Reald Spark, Llc Optical stack for imaging directional backlights
CN108631875A (zh) 2017-03-24 2018-10-09 阿里巴巴集团控股有限公司 双通道小型化可插拔模块、外壳和通信系统
WO2018187154A1 (fr) 2017-04-03 2018-10-11 Reald Spark, Llc Rétroéclairages directionnels d'imagerie segmentée
WO2018208619A1 (fr) 2017-05-08 2018-11-15 Reald Spark, Llc Empilement optique pour affichage directionnel
US10303030B2 (en) 2017-05-08 2019-05-28 Reald Spark, Llc Reflective optical stack for privacy display
US10126575B1 (en) 2017-05-08 2018-11-13 Reald Spark, Llc Optical stack for privacy display
ES2967691T3 (es) 2017-08-08 2024-05-03 Reald Spark Llc Ajuste de una representación digital de una región de cabeza
TW201921060A (zh) 2017-09-15 2019-06-01 美商瑞爾Ｄ斯帕克有限責任公司 用於可切換定向顯示器的光學堆疊結構
US11115647B2 (en) 2017-11-06 2021-09-07 Reald Spark, Llc Privacy display apparatus
CA3089477A1 (fr) 2018-01-25 2019-08-01 Reald Spark, Llc Ecran tactile pour affichage de confidentialite
BR112020015167A2 (pt) 2018-01-25 2021-01-19 Reald Spark, Llc Pilha óptica refletiva para visor de privacidade
US10763964B2 (en) * 2018-06-28 2020-09-01 Nec Corporation Bidirectional optical communication and sensing WDM architecture using same fiber transmission band
CN108879305B (zh) * 2018-07-27 2019-12-27 武汉光迅科技股份有限公司 一种具有otdr功能的遥泵泵浦源装置及控制方法
RU2705934C1 (ru) * 2019-04-24 2019-11-12 Федеральное государственное бюджетное образовательное учреждение высшего образования "Поволжский государственный университет телекоммуникаций и информатики" (ФГБОУ ВО ПГУТИ) Способ контроля антенно-мачтовых сооружений
US11394814B2 (en) 2020-05-20 2022-07-19 Alibaba Group Holding Limited Path control by end hosts in networks
US11057113B1 (en) 2020-06-02 2021-07-06 Alibaba Group Holding Limited High-speed silicon photonics optical transceivers
EP4214441A4 (fr) 2020-09-16 2024-08-28 Reald Spark Llc Dispositif d'éclairage externe de véhicule
US11668590B2 (en) 2020-11-11 2023-06-06 Alibaba Group Holding Limited System and method for fiber sensing
US11336376B1 (en) 2021-01-29 2022-05-17 Alibaba Group Holding Limited Flexible switch solution based on co-packaged optics
US11630261B2 (en) 2021-04-29 2023-04-18 Alibaba Singapore Holding Private Limited Co-packaged optics switch solution based on analog optical engines
US11824581B2 (en) * 2021-08-11 2023-11-21 Ciena Corporation Turn-up procedure for local and remote amplifiers in an optical system
US11671172B1 (en) * 2022-02-25 2023-06-06 Huawei Technologies Co., Ltd. Systems and methods for characterizing an optical fiber in a dense wavelength division multiplexing optical link
US11966049B2 (en) 2022-08-02 2024-04-23 Reald Spark, Llc Pupil tracking near-eye display

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU5839290A (en) * 1989-06-22 1991-01-08 British Telecommunications Public Limited Company Optical time domain reflectometry
FR2682239B1 (fr) * 1991-10-04 1994-11-04 Cit Alcatel Systeme de transmission bidirectionnelle, notamment par fibre optique, avec une porteuse unique pour les deux sens de transmission.
US5907417A (en) 1994-12-30 1999-05-25 Lucent Technologies Inc. Passive optical network with diagnostic loop-back
EP1291986B1 (fr) 1995-03-20 2008-06-11 Fujitsu Limited Dispositif et procédé de traitement de signaux optiques
JP3859256B2 (ja) 1995-03-20 2006-12-20 富士通株式会社 光ファイバ増幅器
GB9526176D0 (en) 1995-12-21 1996-02-21 Stc Submarine Systems Ltd System fibre break detection in systems using ropas
JPH09261187A (ja) 1996-03-19 1997-10-03 Fujitsu Ltd 無中継光伝送システムのリモートアンプおよび障害点標定方法
US5959750A (en) * 1996-06-06 1999-09-28 Lucent Technologies Inc. Method of upgrading transmission capacity by Raman amplification
US6028684A (en) * 1996-10-23 2000-02-22 Tyco Submarine Systems Ltd Path to provide OTDR measurements of an optical transmission system that includes optical isolators
DE10012881B4 (de) * 2000-03-16 2008-09-04 Nokia Siemens Networks Gmbh & Co.Kg Ramanverstärkeranordnung
GB0024453D0 (en) * 2000-10-05 2000-11-22 Nortel Networks Ltd Raman amplification
JP4372330B2 (ja) * 2000-10-30 2009-11-25 富士通株式会社 分布型光増幅装置、光通信用の局および光通信システム
JP4541574B2 (ja) * 2001-02-07 2010-09-08 富士通株式会社 光中継伝送システムおよび光中継伝送方法
JP3808766B2 (ja) * 2001-12-21 2006-08-16 富士通株式会社 ラマン増幅器および光伝送システム
JP3961973B2 (ja) * 2003-03-14 2007-08-22 富士通株式会社 Ｏｔｄｒによる測定方法及び端局装置

Also Published As

Publication number Publication date
GB2400763A (en) 2004-10-20
US7215415B2 (en) 2007-05-08
JP2004282363A (ja) 2004-10-07
GB2400763B (en) 2006-06-21
JP3961973B2 (ja) 2007-08-22
FR2853481A1 (fr) 2004-10-08
US20070183785A1 (en) 2007-08-09
US20050110980A1 (en) 2005-05-26
GB0405654D0 (en) 2004-04-21
US7420666B2 (en) 2008-09-02

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