WO2009008370A1 - 光変調回路および光伝送システム - Google Patents

光変調回路および光伝送システム Download PDF

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Publication number
WO2009008370A1
WO2009008370A1 PCT/JP2008/062182 JP2008062182W WO2009008370A1 WO 2009008370 A1 WO2009008370 A1 WO 2009008370A1 JP 2008062182 W JP2008062182 W JP 2008062182W WO 2009008370 A1 WO2009008370 A1 WO 2009008370A1
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WO
WIPO (PCT)
Prior art keywords
optical
signal
phase
modulator
light
Prior art date
Application number
PCT/JP2008/062182
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English (en)
French (fr)
Inventor
Takayuki Kobayashi
Akihide Sano
Yutaka Miyamoto
Original Assignee
Nippon Telegraph And Telephone Corporation
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 Nippon Telegraph And Telephone Corporation filed Critical Nippon Telegraph And Telephone Corporation
Priority to US12/664,745 priority Critical patent/US8437638B2/en
Priority to EP08777897.3A priority patent/EP2166681B1/en
Priority to CN200880021467.7A priority patent/CN101682422B/zh
Publication of WO2009008370A1 publication Critical patent/WO2009008370A1/ja

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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
    • H04B10/50—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
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/03—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on ceramics or electro-optical crystals, e.g. exhibiting Pockels effect or Kerr effect
    • G02F1/0327—Operation of the cell; Circuit arrangements
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/21—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  by interference
    • G02F1/225—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  by interference in an optical waveguide structure
    • 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
    • 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]
    • H04B10/5561—Digital phase modulation

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Nonlinear Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Optics & Photonics (AREA)
  • Electromagnetism (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optical Communication System (AREA)
  • Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)

Abstract

　　本発明の光変調器および光伝送システムは、一定で位相がそろった異なる周波数の連続光を発生する多波長光源のそれぞれの連続光に対してそれぞれの周波数を中心に光のサブキャリアが発生するような変調器駆動信号に変換し、連続光を変調器駆動信号を用いて光サブキャリアに変調する。光変調を光直交変調器により行う場合には、例えば、送信データをＡ（ｔ）およびＢ（ｔ）の２つの並列データに変換し、Ａ（ｔ）＋Ｂ（ｔ）に周波数ωのクロック信号で変調したＩ相信号と、Ａ（ｔ）－Ｂ（ｔ）に前記クロック信号から位相をπ／２ずらした信号で変調したＱ相信号とを生成し、Ｉ相信号とＱ相信号とを、光直交変調器のそれぞれの電極に印加する。
PCT/JP2008/062182 2007-07-06 2008-07-04 光変調回路および光伝送システム WO2009008370A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US12/664,745 US8437638B2 (en) 2007-07-06 2008-07-04 Optical modulation circuit and optical transmission system
EP08777897.3A EP2166681B1 (en) 2007-07-06 2008-07-04 Optical modulation circuit and optical transmission system
CN200880021467.7A CN101682422B (zh) 2007-07-06 2008-07-04 光调制电路和光传输系统

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007177871A JP4906103B2 (ja) 2007-07-06 2007-07-06 光変調回路および光伝送システム
JP2007-177871 2007-07-06

Publications (1)

Publication Number Publication Date
WO2009008370A1 true WO2009008370A1 (ja) 2009-01-15

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/062182 WO2009008370A1 (ja) 2007-07-06 2008-07-04 光変調回路および光伝送システム

Country Status (5)

Country Link
US (1) US8437638B2 (ja)
EP (1) EP2166681B1 (ja)
JP (1) JP4906103B2 (ja)
CN (1) CN101682422B (ja)
WO (1) WO2009008370A1 (ja)

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CN101692628A (zh) * 2009-09-10 2010-04-07 复旦大学 基于单边带调制的单载波频域均衡技术的光纤通信系统
WO2011032531A1 (de) * 2009-09-18 2011-03-24 Karlsruher Institut für Technologie Optische anordnung
CN102055527A (zh) * 2010-12-10 2011-05-11 武汉邮电科学研究院 一种产生多载波光的方法
JP2011188246A (ja) * 2010-03-09 2011-09-22 Kddi R & D Laboratories Inc 光通信装置及び光通信方法
CN101557270B (zh) * 2009-04-30 2012-08-15 华中科技大学 全光傅立叶变换器、反变换器及一种正交频分复用系统
JP2014106492A (ja) * 2012-11-29 2014-06-09 Fujitsu Ltd 光信号処理装置及び光信号処理方法

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JP4905951B2 (ja) * 2006-11-28 2012-03-28 日本電信電話株式会社 光変調回路および光伝送システム
JP4941340B2 (ja) * 2008-02-04 2012-05-30 Ｋｄｄｉ株式会社 光通信方法及び装置
TWI396033B (zh) * 2008-11-07 2013-05-11 Univ Nat Chiao Tung Multi - frequency electrical signal of the photoelectric device
KR20130036377A (ko) * 2008-12-16 2013-04-11 알카텔-루센트 유에스에이 인코포레이티드 신호 성상도를 이용하는 통신 시스템 및 방법
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
JP5303323B2 (ja) * 2009-03-16 2013-10-02 日本電信電話株式会社 可変光マルチキャリア発生装置及び可変光マルチキャリア送信装置及び可変マルチキャリア発生方法
EP2434665B1 (en) 2009-05-18 2017-03-08 Nippon Telegraph And Telephone Corporation Signal generation circuit, optical signal transmitter, signal reception circuit, optical signal synchronization establishment method, and optical signal synchronization system
JP5269697B2 (ja) * 2009-05-29 2013-08-21 日本電信電話株式会社 光受信器及び光伝送システム
KR101382619B1 (ko) * 2009-07-24 2014-04-07 한국전자통신연구원 광 송신 장치 및 방법과 광 수신 장치 및 방법
KR20110018826A (ko) * 2009-08-18 2011-02-24 한국전자통신연구원 개방형 광가입자망 시스템
CN102687475B (zh) 2009-10-13 2015-08-05 骁阳网络有限公司 用于在光学网络部件中处理数据的方法以及光学网络部件
JP5830872B2 (ja) * 2010-03-19 2015-12-09 富士通株式会社 光信号処理装置、光通信方法、受信機、および光ネットワークシステム
JP5385858B2 (ja) * 2010-06-04 2014-01-08 日本電信電話株式会社 光直交周波数分割多重光信号の生成方法及び生成装置
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EP2648349A1 (en) * 2010-11-29 2013-10-09 Hitachi, Ltd. Optical communication system, optical transmitter, and transponder
US8948546B2 (en) 2011-02-16 2015-02-03 Nippon Telegraph And Telephone Corporation Optical frequency shifter and optical modulator using the same
US9294216B2 (en) 2011-03-03 2016-03-22 Ofidium Pty. Ltd. Optical OFDM transmission
US20120237156A1 (en) * 2011-03-16 2012-09-20 Nokia Siemens Networks Oy Optical modulator, communication system, and communication method
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KR20130093705A (ko) * 2011-12-23 2013-08-23 한국전자통신연구원 멀티캐리어 기반의 광송신 장치 및 광수신 장치
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JP5870754B2 (ja) * 2012-02-27 2016-03-01 富士通株式会社 光信号送信装置及び光信号送信方法
US9461751B2 (en) * 2012-12-18 2016-10-04 Ciena Corporation Frequency domain multiplex optical transmission
JP6122334B2 (ja) * 2013-04-12 2017-04-26 日本電信電話株式会社 光変調器
JP6059589B2 (ja) * 2013-04-12 2017-01-11 日本電信電話株式会社 光変調器およびそれを用いた光変調装置
CN104579482B (zh) * 2013-10-17 2019-02-19 光红建圣股份有限公司 光纤模块
WO2015120087A1 (en) * 2014-02-04 2015-08-13 Futurewei Technologies, Inc. Direct-detected orthogonal frequency-division multiplexing with dispersion pre-compensation digital signal processing
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101557270B (zh) * 2009-04-30 2012-08-15 华中科技大学 全光傅立叶变换器、反变换器及一种正交频分复用系统
CN101692628A (zh) * 2009-09-10 2010-04-07 复旦大学 基于单边带调制的单载波频域均衡技术的光纤通信系统
WO2011032531A1 (de) * 2009-09-18 2011-03-24 Karlsruher Institut für Technologie Optische anordnung
JP2011188246A (ja) * 2010-03-09 2011-09-22 Kddi R & D Laboratories Inc 光通信装置及び光通信方法
CN102055527A (zh) * 2010-12-10 2011-05-11 武汉邮电科学研究院 一种产生多载波光的方法
JP2014106492A (ja) * 2012-11-29 2014-06-09 Fujitsu Ltd 光信号処理装置及び光信号処理方法

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Publication number Publication date
CN101682422A (zh) 2010-03-24
CN101682422B (zh) 2016-03-16
JP2009017320A (ja) 2009-01-22
EP2166681A1 (en) 2010-03-24
US20100220376A1 (en) 2010-09-02
EP2166681A4 (en) 2014-01-01
JP4906103B2 (ja) 2012-03-28
EP2166681B1 (en) 2019-09-18
US8437638B2 (en) 2013-05-07

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