WO2013185734A3 - 相干光通信系统中色散和非线性补偿方法及系统 - Google Patents

相干光通信系统中色散和非线性补偿方法及系统 Download PDF

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Publication number
WO2013185734A3
WO2013185734A3 PCT/CN2013/081517 CN2013081517W WO2013185734A3 WO 2013185734 A3 WO2013185734 A3 WO 2013185734A3 CN 2013081517 W CN2013081517 W CN 2013081517W WO 2013185734 A3 WO2013185734 A3 WO 2013185734A3
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WO
WIPO (PCT)
Prior art keywords
dispersion
compensation
nonlinearity compensation
phase angle
optical communication
Prior art date
Application number
PCT/CN2013/081517
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English (en)
French (fr)
Other versions
WO2013185734A2 (zh
Inventor
沈百林
喻松
杨杰
李敏良
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中兴通讯股份有限公司
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.)
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Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to KR1020157012750A priority Critical patent/KR101686927B1/ko
Priority to EP13805082.8A priority patent/EP2922219B1/en
Publication of WO2013185734A2 publication Critical patent/WO2013185734A2/zh
Publication of WO2013185734A3 publication Critical patent/WO2013185734A3/zh

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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
    • H04B10/25—Arrangements specific to fibre transmission
    • H04B10/2507—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion
    • H04B10/2513—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion due to chromatic dispersion
    • 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
    • H04B10/25—Arrangements specific to fibre transmission
    • H04B10/2507—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion
    • H04B10/2543—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion due to fibre non-linearities, e.g. Kerr effect
    • 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
    • H04B10/299—Signal waveform processing, e.g. reshaping or retiming
    • 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
    • H04B10/616—Details of the electronic signal processing in coherent optical receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2210/00—Indexing scheme relating to optical transmission systems
    • H04B2210/25—Distortion or dispersion compensation
    • H04B2210/252—Distortion or dispersion compensation after the transmission line, i.e. post-compensation

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

Abstract

一种相干光通信系统中色散和非线性补偿方法及系统。所述方法包括：将光纤总长划分为等长的N个步长，在各步长内先进行色散补偿，再进行非线性补偿；其中，在各步长内进行非线性补偿的步骤包括：以当前采样点为中心，对X和Y偏振态各2k+1个采样点采样，计算2（2k+1）个采样点的功率，将X和Y偏振态上位置相同的采样点的功率相加，得到2k+1个功率值，对2k+1个功率值加权求和，再将加权求和的值乘以设定系数W后得到当前采样点的非线性相角，根据非线性相角进行补偿，其中，所述N和k为正整数。本发明实施例的技术方案中，改进了非线性相角的计算方式，降低了计算复杂度。
PCT/CN2013/081517 2012-11-19 2013-08-15 相干光通信系统中色散和非线性补偿方法及系统 WO2013185734A2 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020157012750A KR101686927B1 (ko) 2012-11-19 2013-08-15 코히어런트 광통신 시스템 중의 색 분산 및 비선형성 보상 방법 및 시스템
EP13805082.8A EP2922219B1 (en) 2012-11-19 2013-08-15 Dispersion and nonlinearity compensation method and system in a coherent optical communication system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201210468694.2 2012-11-19
CN201210468694.2A CN102983910B (zh) 2012-11-19 2012-11-19 相干光通信系统中色散和非线性补偿方法及系统

Publications (2)

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WO2013185734A2 WO2013185734A2 (zh) 2013-12-19
WO2013185734A3 true WO2013185734A3 (zh) 2014-02-06

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Country Link
EP (1) EP2922219B1 (zh)
KR (1) KR101686927B1 (zh)
CN (1) CN102983910B (zh)
WO (1) WO2013185734A2 (zh)

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CN102983910B (zh) * 2012-11-19 2017-06-23 中兴通讯股份有限公司 相干光通信系统中色散和非线性补偿方法及系统
CN103916190B (zh) * 2014-01-26 2017-10-27 北京邮电大学 一种光传输过程中对光非线性相位补偿的优化方法
CN105207721A (zh) * 2014-06-19 2015-12-30 中兴通讯股份有限公司 光信号探测与解调装置及系统
CN104125017B (zh) * 2014-07-23 2017-01-18 同济大学 一种光纤非线性和色散效应补偿装置
CN105471507B (zh) * 2014-09-12 2019-03-08 中兴通讯股份有限公司 一种非线性补偿方法及装置
US9806813B2 (en) 2014-10-01 2017-10-31 Futurewei Technologies, Inc. Optical receiver with optical transmitter-specific dispersion post-compensation
CN106330320B (zh) * 2015-06-24 2019-05-24 中兴通讯股份有限公司 一种自适应均衡器及其实现自适应均衡处理的方法
CN105071858B (zh) * 2015-07-07 2017-07-18 华中科技大学 一种光纤通信系统中的色散估计方法
CN106533998B (zh) * 2015-09-15 2020-03-06 富士通株式会社 非线性特性的确定方法、装置和系统
CN105915289B (zh) * 2016-06-06 2018-05-11 武汉邮电科学研究院 光纤传输损失补偿的数字背投算法中最佳步长的确定方法
KR101951996B1 (ko) 2016-10-18 2019-02-25 연세대학교 산학협력단 광통신 시스템에서 광섬유의 분산 특성을 보상하기 위한 장치 및 방법
CN106921433B (zh) * 2017-01-10 2019-03-01 西南交通大学 一种自适应的多参量非线性因子联合估计方法
CN108768540B (zh) * 2018-05-25 2020-05-05 武汉邮电科学研究院有限公司 光信号接收装置、方法及具有该装置的相干光传输系统
CN111010239B (zh) * 2019-12-18 2021-03-26 华中科技大学 一种相干光纤通信系统中非线性相位噪声补偿方法及系统
CN111988089B (zh) * 2020-07-23 2021-05-25 北京邮电大学 一种用于光纤通信系统的信号补偿方法及系统
CN114244439B (zh) * 2021-07-16 2023-03-21 北京邮电大学 一种光纤通信系统的信号补偿方法及装置
CN117498941B (zh) * 2023-12-28 2024-04-12 湖北大学 一种改进型光纤非线性损伤补偿方法、设备及存储设备

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Also Published As

Publication number Publication date
KR101686927B1 (ko) 2016-12-15
EP2922219A2 (en) 2015-09-23
EP2922219B1 (en) 2019-02-20
WO2013185734A2 (zh) 2013-12-19
CN102983910A (zh) 2013-03-20
CN102983910B (zh) 2017-06-23
EP2922219A4 (en) 2015-12-30
KR20150070334A (ko) 2015-06-24

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