BR112013000068A2 - método para gerar um pulso de exame e reflectômetro de domínio do tempo óptico coerente - Google Patents
método para gerar um pulso de exame e reflectômetro de domínio do tempo óptico coerenteInfo
- Publication number
- BR112013000068A2 BR112013000068A2 BR112013000068A BR112013000068A BR112013000068A2 BR 112013000068 A2 BR112013000068 A2 BR 112013000068A2 BR 112013000068 A BR112013000068 A BR 112013000068A BR 112013000068 A BR112013000068 A BR 112013000068A BR 112013000068 A2 BR112013000068 A2 BR 112013000068A2
- Authority
- BR
- Brazil
- Prior art keywords
- pulse
- time domain
- signal
- reflectometer
- pulse signal
- Prior art date
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
- H04B10/07—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]
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- 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
- G01M11/3109—Reflectometers detecting the back-scattered light in the time-domain, e.g. OTDR
- G01M11/3127—Reflectometers detecting the back-scattered light in the time-domain, e.g. OTDR using multiple or wavelength variable input source
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Optical Devices Or Fibers (AREA)
- Optical Communication System (AREA)
Abstract
método para geração de impulso sonda e reflectômetro óptico no domínio de tempo na coerência. a presente invenção relaciona-se com o campo de transmissão de comunicações, em particular proporciona um método para a geração de impulsos de sondas e um reflectômetro óptico no domínio de tempo na coerência (cotdr). o reflectômetro óptico no domínio de tempo na coerência inclui: uma unidade de controle, configurada para gerar um primeiro sinal de impulso e de um segundo impulso de sinal com o mesmo perído t, onde o segundo sinal de impulso está atrás do segundo sinal de impulso, e o perído t do primeiro de impulso e o segundo sinal de impulso satisfaz t<242>t<242> 2l/c; uma unidade de acionamento, configurada para gerar uma mudança de frequência de sinal de acionamelto de acordo com o primeiro o sinal de impulso; um dispositivo de laser de luz contínua, configurado para gerar, impulsionada pelo sinal do conversor de frequência de mudança, luz contínua com uma frequência mudada e largura do espectro de frequância inalterada; e uma unidade geradora de impulso de sonda, configurada para o modulador de luz contínua, conforme o segundo sinal de impulso, de modo a gerar o impulso sonda. o reflectômetro óptico no domínio de tempo na coerência fornecido pelas formas de realização da presente invenção tem uma resolução mais elevada de falha da fibra e precisão de localização.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201010219146.7 | 2010-06-30 | ||
CN201010219146.7A CN102142892B (zh) | 2010-06-30 | 2010-06-30 | 一种探测脉冲的产生方法和相干光时域反射仪 |
PCT/CN2011/073376 WO2011140915A1 (zh) | 2010-06-30 | 2011-04-27 | 一种探测脉冲的产生方法和相干光时域反射仪 |
Publications (2)
Publication Number | Publication Date |
---|---|
BR112013000068A2 true BR112013000068A2 (pt) | 2016-05-10 |
BR112013000068B1 BR112013000068B1 (pt) | 2020-05-12 |
Family
ID=44410150
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR112013000068-6A BR112013000068B1 (pt) | 2010-06-30 | 2011-04-27 | Método para gerar um pulso de exame e reflectômetro de domínio do tempo óptico coerente |
Country Status (5)
Country | Link |
---|---|
US (1) | US8831422B2 (pt) |
EP (1) | EP2589948B1 (pt) |
CN (1) | CN102142892B (pt) |
BR (1) | BR112013000068B1 (pt) |
WO (1) | WO2011140915A1 (pt) |
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CA2658193A1 (en) | 2009-03-12 | 2010-09-12 | Morgan Solar Inc. | Stimulated emission luminescent light-guide solar concentrators |
US9263605B1 (en) | 2011-04-20 | 2016-02-16 | Morgan Solar Inc. | Pulsed stimulated emission luminescent photovoltaic solar concentrator |
CN102412894B (zh) * | 2011-11-14 | 2015-07-08 | 南京大学 | 多频探测光时分复用相干光时域反射仪方法和装置 |
CN103399256B (zh) * | 2013-07-18 | 2016-09-21 | 中国商用飞机有限责任公司 | 实现导线故障定位的方法和装置 |
CN104422512B (zh) * | 2013-09-02 | 2018-01-05 | 中国石油天然气集团公司 | 基于相干光时域反射的振动检测方法 |
CN103763021B (zh) * | 2013-12-06 | 2016-04-20 | 无锡联河光子技术有限公司 | 一种相干光时域反射测量方法及反射仪装置 |
US9752955B2 (en) * | 2014-07-31 | 2017-09-05 | Ii-Vi Incorporated | Edge propagating optical time domain reflectometer and method of using the same |
JP6226854B2 (ja) * | 2014-11-13 | 2017-11-08 | 日本電信電話株式会社 | 光パルス試験装置及び光パルス試験方法 |
KR102068559B1 (ko) * | 2015-02-05 | 2020-02-24 | 한국전자통신연구원 | 트레이스 기반 자동 이득 제어 가능한 광 선로 감시 장치 및 방법 |
US10250323B2 (en) * | 2015-05-28 | 2019-04-02 | Telefonaktiebolaget L M Ericsson (Publ) | Device and method for monitoring optical fibre link |
CN105634588B (zh) * | 2015-12-30 | 2018-04-06 | 电子科技大学 | 基于相位共轭双子波的相干光时域反射仪 |
CN106533547B (zh) * | 2016-10-19 | 2018-12-18 | 全球能源互联网研究院有限公司 | 电力光纤通信线路故障监测装置 |
CN110114692B (zh) * | 2016-12-29 | 2021-09-17 | 华为技术有限公司 | 一种地面环境的检测方法和装置 |
CN106953687B (zh) * | 2017-01-19 | 2023-09-05 | 中铁第四勘察设计院集团有限公司 | 基于Simplex编码的POTDR***及其信号确定方法 |
US10305586B1 (en) * | 2017-03-29 | 2019-05-28 | Fluke Corporation | Combined signal responses in an optical time-domain reflectometer |
DE102018105905B4 (de) * | 2018-03-14 | 2020-12-31 | Bundesrepublik Deutschland, vertreten durch die Bundesministerin für Wirtschaft und Energie, diese vertreten durch den Präsidenten der Bundesanstalt für Materialforschung und-prüfung (BAM) | Verfahren zum vorzeichenrichtigen Bestimmen einer Änderung eines physikalischen Parameters und Vorrichtung mit einer optischen Faser |
CN110492941B (zh) | 2018-05-14 | 2021-01-29 | 华为技术有限公司 | 一种光信号收发装置 |
CN109617600B (zh) * | 2018-12-28 | 2020-09-15 | 东南大学 | 基于pon链路故障识别的探测脉冲波形自调试***和方法 |
JP6896354B2 (ja) * | 2019-01-25 | 2021-06-30 | アンリツ株式会社 | 光パルス試験装置及び光パルス試験方法 |
CN113014313B (zh) * | 2019-12-20 | 2022-12-02 | ***通信集团山西有限公司 | 光时域反射仪 |
CN111412936B (zh) * | 2020-03-10 | 2021-08-06 | 天津大学 | 一种全数字正交相移脉冲cotdr传感装置和方法 |
CN113517922B (zh) * | 2020-04-09 | 2022-09-02 | 华为技术有限公司 | 一种信号检测方法和光时域反射仪 |
WO2022076836A1 (en) * | 2020-10-08 | 2022-04-14 | Nec Laboratories America, Inc. | Otdr measurement via wavelength/frequency sweeping in phase-sensitive das/dvs systems |
CN114034326B (zh) * | 2022-01-07 | 2022-03-11 | 高勘(广州)技术有限公司 | 光缆探测方法、装置、设备及存储介质 |
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US6122043A (en) | 1996-06-06 | 2000-09-19 | Gn Nettest (New York) Inc. | Method and apparatus for electrically reducing coherence/polarization noise in reflectometers |
CN1114286C (zh) * | 2000-06-27 | 2003-07-09 | 华为技术有限公司 | 用于光时域反射仪的高速数据采集和实时累加处理电路 |
JP3607930B2 (ja) * | 2001-07-02 | 2005-01-05 | 和夫 保立 | 光ファイバ特性測定装置及び方法 |
US20040208523A1 (en) * | 2002-01-30 | 2004-10-21 | Tellabs Operations, Inc. | Swept frequency reflectometry using an optical signal with sinusoidal modulation |
CN1207547C (zh) * | 2002-06-24 | 2005-06-22 | 中国科学院光电技术研究所 | 一种脉冲光波前测量的哈特曼波前传感器 |
CN103181753B (zh) * | 2003-10-27 | 2016-12-28 | 通用医疗公司 | 用于使用频域干涉测量法进行光学成像的方法和设备 |
US7869708B2 (en) * | 2004-03-05 | 2011-01-11 | Huawei Marine Networks Co., Ltd. | COTDR arrangement with swept frequency pulse generator for an optical transmission system |
GB2441154B (en) * | 2006-08-24 | 2009-02-18 | Schlumberger Holdings | Measuring brillouin backscatter from an optical fibre using channelisation |
GB2442746B (en) * | 2006-10-13 | 2011-04-06 | At & T Corp | Method and apparatus for acoustic sensing using multiple optical pulses |
JP4134249B1 (ja) * | 2007-06-25 | 2008-08-20 | アンリツ株式会社 | コヒーレントotdr |
US7872737B2 (en) * | 2007-07-27 | 2011-01-18 | Tyco Electronics Subsea Communications Llc | System and method for optical time domain reflectometry using multi-resolution code sequences |
CN101226100B (zh) | 2008-01-31 | 2010-08-25 | 太原理工大学 | 混沌光时域反射仪及其测量方法 |
JP5550214B2 (ja) * | 2008-04-17 | 2014-07-16 | アンリツ株式会社 | コヒーレントotdr装置 |
CN101729141B (zh) * | 2008-10-21 | 2013-06-05 | 华为技术有限公司 | 对海缆***进行监测的方法和装置 |
US8594496B2 (en) * | 2009-11-13 | 2013-11-26 | Futurewei Technologies, Inc. | Tunable coherent optical time division reflectometry |
-
2010
- 2010-06-30 CN CN201010219146.7A patent/CN102142892B/zh active Active
-
2011
- 2011-04-27 BR BR112013000068-6A patent/BR112013000068B1/pt active IP Right Grant
- 2011-04-27 WO PCT/CN2011/073376 patent/WO2011140915A1/zh active Application Filing
- 2011-04-27 EP EP11780136.5A patent/EP2589948B1/en active Active
-
2012
- 2012-12-27 US US13/728,686 patent/US8831422B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
EP2589948B1 (en) | 2016-02-24 |
BR112013000068B1 (pt) | 2020-05-12 |
WO2011140915A1 (zh) | 2011-11-17 |
EP2589948A4 (en) | 2013-08-21 |
CN102142892B (zh) | 2014-12-17 |
US20130114954A1 (en) | 2013-05-09 |
CN102142892A (zh) | 2011-08-03 |
US8831422B2 (en) | 2014-09-09 |
EP2589948A1 (en) | 2013-05-08 |
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B06F | Objections, documents and/or translations needed after an examination request according art. 34 industrial property law | ||
B06U | Preliminary requirement: requests with searches performed by other patent offices: suspension of the patent application procedure | ||
B09A | Decision: intention to grant | ||
B16A | Patent or certificate of addition of invention granted |
Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 27/04/2011, OBSERVADAS AS CONDICOES LEGAIS. |