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CN110463090A - 一种光发射机、光接收机及光传输方法 - Google Patents

一种光发射机、光接收机及光传输方法 Download PDF

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Publication number
CN110463090A
CN110463090A CN201780089070.0A CN201780089070A CN110463090A CN 110463090 A CN110463090 A CN 110463090A CN 201780089070 A CN201780089070 A CN 201780089070A CN 110463090 A CN110463090 A CN 110463090A
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optical
optical signal
pairs
modulated
pair
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CN201780089070.0A
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CN110463090B (zh
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余毅
黄远达
李良川
王勰
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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
    • H04B10/50—Transmitters
    • H04B10/516—Details of coding or modulation
    • H04B10/548—Phase or frequency modulation
    • H04B10/556—Digital modulation, e.g. differential phase shift keying [DPSK] or frequency shift keying [FSK]
    • H04B10/5563—Digital frequency modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/005—Optical Code Multiplex
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • 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
    • H04B10/505—Laser transmitters using external modulation
    • H04B10/5051—Laser transmitters using external modulation using a series, i.e. cascade, combination of modulators
    • 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
    • H04B10/516—Details of coding or modulation
    • H04B10/5165—Carrier suppressed; Single sideband; Double sideband or vestigial
    • 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
    • H04B10/615—Arrangements affecting the optical part of the receiver
    • 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
    • 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
    • H04B10/6164—Estimation or correction of the frequency offset between the received optical signal and the optical local oscillator
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/10—Code generation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/005—Optical Code Multiplex
    • H04J14/007—Orthogonal Optical Code Multiplex
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • 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
    • H04B10/505—Laser transmitters using external modulation
    • H04B10/5053—Laser transmitters using external modulation using a parallel, i.e. shunt, combination of modulators

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

Abstract

一种光发射机、光接收机及光传输方法，用于解决现有技术存在的解复用复杂度高的问题。光发射机包括光信号产生器、N个扩频器、N对数据调制器以及合路器；光信号产生器产生N路单一波长的光载波；第i个扩频器针对光信号产生器产生的第i路光载波进行扩频处理得到具有两个子载波的扩频光信号以及将扩频光信号分为第一光信号以及第二光信号，并针对第二光信号进行延时处理得到第三光信号；第i对数据调制器针对第一光信号以及第三光信号进行调制处理得到一对调制光信号，并将一对调制光信号分别传输给合路器；到达合路器的一对调制光信号在时域上相差1/4fsi；合路器将由N对数据调制器传输来的N对调制光信号合路为一路光信号。

Description

PCT国内申请，说明书已公开。

Claims (21)

  1. PCT国内申请，权利要求书已公开。
CN201780089070.0A 2017-08-16 2017-08-16 一种光发射机、光接收机及光传输方法 Active CN110463090B (zh)

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* Cited by examiner, † Cited by third party
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CN112468232A (zh) * 2020-11-13 2021-03-09 锐捷网络股份有限公司 一种控制信号传输系统及方法
WO2022171010A1 (zh) * 2021-02-10 2022-08-18 华为技术有限公司 通信方法、光信号交换装置、通信系统
CN115033052A (zh) * 2022-05-31 2022-09-09 武汉邮电科学研究院有限公司 一种光电混合张量卷积的计算方法和系统

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CN102932089A (zh) * 2012-11-16 2013-02-13 华南师范大学 基于超密集波分复用的多载波码分复用光传输系统和方法
JP5411538B2 (ja) * 2009-03-16 2014-02-12 日本電信電話株式会社 光マルチキャリア発生装置及び方法及び光マルチキャリア発生装置を用いた光マルチキャリア送信装置
WO2017084046A1 (zh) * 2015-11-18 2017-05-26 华为技术有限公司 一种信号发射方法、信号接收方法及相关设备与系统

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CN101369851A (zh) * 2007-08-16 2009-02-18 富士通株式会社 相干光接收系统
JP5411538B2 (ja) * 2009-03-16 2014-02-12 日本電信電話株式会社 光マルチキャリア発生装置及び方法及び光マルチキャリア発生装置を用いた光マルチキャリア送信装置
CN102142902A (zh) * 2010-11-19 2011-08-03 华为技术有限公司 一种实现直接检测和相干检测的方法和装置
CN102932089A (zh) * 2012-11-16 2013-02-13 华南师范大学 基于超密集波分复用的多载波码分复用光传输系统和方法
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112468232A (zh) * 2020-11-13 2021-03-09 锐捷网络股份有限公司 一种控制信号传输系统及方法
WO2022171010A1 (zh) * 2021-02-10 2022-08-18 华为技术有限公司 通信方法、光信号交换装置、通信系统
CN115033052A (zh) * 2022-05-31 2022-09-09 武汉邮电科学研究院有限公司 一种光电混合张量卷积的计算方法和系统

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Publication number Publication date
US11018775B2 (en) 2021-05-25
US20200186255A1 (en) 2020-06-11
EP3664324A4 (en) 2020-09-02
CN110463090B (zh) 2021-02-23
WO2019033301A1 (zh) 2019-02-21
EP3664324A1 (en) 2020-06-10
EP3664324B1 (en) 2022-06-01

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