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 coerente

Info

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
Application number
BR112013000068A
Other languages
English (en)
Other versions
BR112013000068B1 (pt
Inventor
Shaofeng Qiu
Yijia Wei
Zhiyong Feng
Original Assignee
Huawei Tech Co Ltd
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 Huawei Tech Co Ltd filed Critical Huawei Tech Co Ltd
Publication of BR112013000068A2 publication Critical patent/BR112013000068A2/pt
Publication of BR112013000068B1 publication Critical patent/BR112013000068B1/pt

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]
    • 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.
BR112013000068-6A 2010-06-30 2011-04-27 Método para gerar um pulso de exame e reflectômetro de domínio do tempo óptico coerente BR112013000068B1 (pt)

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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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
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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
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US10305586B1 (en) * 2017-03-29 2019-05-28 Fluke Corporation Combined signal responses in an optical time-domain reflectometer
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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系统和方法
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 中国移动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
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Also Published As

Publication number Publication date
BR112013000068B1 (pt) 2020-05-12
CN102142892A (zh) 2011-08-03
WO2011140915A1 (zh) 2011-11-17
EP2589948A1 (en) 2013-05-08
US8831422B2 (en) 2014-09-09
US20130114954A1 (en) 2013-05-09
EP2589948A4 (en) 2013-08-21
EP2589948B1 (en) 2016-02-24
CN102142892B (zh) 2014-12-17

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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
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B16A Patent or certificate of addition of invention granted

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