CN107431537A - 一种光信号的频率校准方法和设备 - Google Patents

一种光信号的频率校准方法和设备 Download PDF

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Publication number
CN107431537A
CN107431537A CN201580077460.7A CN201580077460A CN107431537A CN 107431537 A CN107431537 A CN 107431537A CN 201580077460 A CN201580077460 A CN 201580077460A CN 107431537 A CN107431537 A CN 107431537A
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optical signal
frequency
signal
baseline
difference
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CN201580077460.7A
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CN107431537B (zh
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黄远达
李良川
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • 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
    • H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
    • H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
    • H04B10/0795—Performance monitoring; Measurement of transmission parameters
    • H04B10/07957—Monitoring or measuring wavelength
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/20—Monitoring; Testing of receivers
    • H04B17/21—Monitoring; Testing of receivers for calibration; for correcting measurements
    • 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
    • H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
    • H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
    • H04B10/0795—Performance monitoring; Measurement of transmission parameters
    • 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
    • H04B10/50—Transmitters
    • H04B10/501—Structural aspects
    • H04B10/503—Laser transmitters
    • 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
    • H04B10/50—Transmitters
    • H04B10/572—Wavelength control
    • 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
    • H04B10/60—Receivers
    • H04B10/61—Coherent receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/10—Monitoring; Testing of transmitters
    • H04B17/11—Monitoring; Testing of transmitters for calibration
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optics & Photonics (AREA)
  • Optical Communication System (AREA)

Abstract

本发明公开了一种光信号的频率校准方法和设备，包括：接收接入节点的发射机中激光器产生的发生频偏的第一光信号；以及接收本振发送的基准光信号；计算所述基准光信号与所述第一光信号之间的频率差与设定的频率差之间的差值；根据所述差值对所述第一光信号进行频率校准，并利用校准后的所述第一光信号对待发送的上行数据进行调制，将调制后的所述上行数据发送给所述主节点。在UDWDM汇聚型网络中，每一个接入节点将主节点发送的光信号作为基准，对发射机中激光器产生的发生频偏的光信号进行频偏校准，使得主节点对应的所有接入节点发射的上行信号之间的相对漂移相同，有效地避免了上行信号在传输过程中造成的相邻信道间串扰，提升了上行信号的传输性能。

Description

PCT国内申请，说明书已公开。

Claims (24)

  1. PCT国内申请，权利要求书已公开。
CN201580077460.7A 2015-03-19 2015-03-19 一种光信号的频率校准方法和设备 Active CN107431537B (zh)

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PCT/CN2015/074600 WO2016145659A1 (zh) 2015-03-19 2015-03-19 一种光信号的频率校准方法和设备

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US (1) US10116400B2 (zh)
EP (1) EP3264639B1 (zh)
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WO (1) WO2016145659A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108768515A (zh) * 2018-05-24 2018-11-06 武汉华工正源光子技术有限公司 突发接收光功率校准方法及装置
CN114640907A (zh) * 2020-12-16 2022-06-17 华为技术有限公司 一种光通信装置和光通信方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101867418A (zh) * 2009-04-16 2010-10-20 华为技术有限公司 一种光信号的接收方法、光信号接收装置和光传输系统
CN102215079A (zh) * 2011-06-03 2011-10-12 武汉邮电科学研究院 一种基于多波长相关光通信系统的频率偏移消除方法
CN102820932A (zh) * 2012-08-10 2012-12-12 武汉邮电科学研究院 相干光通信中频偏自适应精确补偿的系统及方法
CN104038302A (zh) * 2014-05-29 2014-09-10 成都泰富通信有限公司 适用于dwdm光传输系统的超精密时间频率传递方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0239131A (ja) * 1988-07-29 1990-02-08 Hitachi Ltd 周波数間隔安定化方法、光ヘテロダイン又は光ホモダイン通信方法
JP2008054093A (ja) * 2006-08-25 2008-03-06 Nec Corp 光通信システム、光通信装置および光通信波長制御方法
EP2362558B1 (en) * 2010-02-16 2016-04-13 Xieon Networks S.à r.l. Optical network element
EP2545714B1 (en) * 2010-03-11 2014-11-26 Xieon Networks S.à.r.l. Data processing of an optical network element
CN102264012B (zh) 2011-07-29 2017-11-28 中兴通讯股份有限公司 一种pon系统的本振同步方法及onu和olt

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101867418A (zh) * 2009-04-16 2010-10-20 华为技术有限公司 一种光信号的接收方法、光信号接收装置和光传输系统
CN102215079A (zh) * 2011-06-03 2011-10-12 武汉邮电科学研究院 一种基于多波长相关光通信系统的频率偏移消除方法
CN102820932A (zh) * 2012-08-10 2012-12-12 武汉邮电科学研究院 相干光通信中频偏自适应精确补偿的系统及方法
CN104038302A (zh) * 2014-05-29 2014-09-10 成都泰富通信有限公司 适用于dwdm光传输系统的超精密时间频率传递方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108768515A (zh) * 2018-05-24 2018-11-06 武汉华工正源光子技术有限公司 突发接收光功率校准方法及装置
CN114640907A (zh) * 2020-12-16 2022-06-17 华为技术有限公司 一种光通信装置和光通信方法

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Publication number Publication date
EP3264639B1 (en) 2019-05-08
CN107431537B (zh) 2019-10-18
EP3264639A1 (en) 2018-01-03
US20180006740A1 (en) 2018-01-04
WO2016145659A1 (zh) 2016-09-22
EP3264639A4 (en) 2018-04-04
US10116400B2 (en) 2018-10-30

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