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DE69940873D1 - Optisches Übertragungssystem - Google Patents

Optisches Übertragungssystem

Info

Publication number
DE69940873D1
DE69940873D1 DE69940873T DE69940873T DE69940873D1 DE 69940873 D1 DE69940873 D1 DE 69940873D1 DE 69940873 T DE69940873 T DE 69940873T DE 69940873 T DE69940873 T DE 69940873T DE 69940873 D1 DE69940873 D1 DE 69940873D1
Authority
DE
Germany
Prior art keywords
transmission system
optical transmission
optical
transmission
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
DE69940873T
Other languages
English (en)
Inventor
Yutaka Miyamoto
Kazushige Yonenaga
Shoichirou Kuwahara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Corp filed Critical Nippon Telegraph and Telephone Corp
Application granted granted Critical
Publication of DE69940873D1 publication Critical patent/DE69940873D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • H04B10/50—Transmitters
    • H04B10/501—Structural aspects
    • H04B10/503—Laser transmitters
    • H04B10/505—Laser transmitters using external 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
    • H04B10/501—Structural aspects
    • H04B10/503—Laser transmitters
    • H04B10/505—Laser transmitters using external modulation
    • H04B10/5055—Laser transmitters using external modulation using a pre-coder
    • 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
    • H04B10/5057—Laser transmitters using external modulation using a feedback signal generated by analysing the optical output
    • H04B10/50572—Laser transmitters using external modulation using a feedback signal generated by analysing the optical output to control the modulating signal amplitude including amplitude distortion
    • 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
    • H04B10/5057—Laser transmitters using external modulation using a feedback signal generated by analysing the optical output
    • H04B10/50575—Laser transmitters using external modulation using a feedback signal generated by analysing the optical output to control the modulator DC bias
    • 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
    • H04B10/508—Pulse generation, e.g. generation of solitons
    • 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
    • H04B10/5162—Return-to-zero modulation schemes
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optics & Photonics (AREA)
  • Optical Communication System (AREA)
DE69940873T 1998-07-29 1999-07-28 Optisches Übertragungssystem Expired - Lifetime DE69940873D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21420998 1998-07-29

Publications (1)

Publication Number Publication Date
DE69940873D1 true DE69940873D1 (de) 2009-06-25

Family

ID=16652047

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69940873T Expired - Lifetime DE69940873D1 (de) 1998-07-29 1999-07-28 Optisches Übertragungssystem

Country Status (3)

Country Link
US (1) US6559996B1 (de)
EP (1) EP0977382B1 (de)
DE (1) DE69940873D1 (de)

Families Citing this family (57)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6556326B2 (en) * 1996-12-20 2003-04-29 Tyco Telecommunications (Us) Inc. Synchronous amplitude modulation for improved performance of optical transmission systems
US20040161245A1 (en) * 1996-12-20 2004-08-19 Bergano Neal S. Synchronous amplitude modulation for improved performance of optical transmission systems
DE60142814D1 (de) 2000-02-28 2010-09-30 Nippon Telegraph & Telephone Optisches Übertragungsverfahren, optischer Sender und optischer Empfänger
JP3563027B2 (ja) * 2000-03-06 2004-09-08 沖電気工業株式会社 光ｒｚ信号生成装置および光ｒｚ信号生成方法
JP2001296506A (ja) * 2000-04-13 2001-10-26 Nec Corp Ｒｚ光送信器
JP3765967B2 (ja) * 2000-06-30 2006-04-12 三菱電機株式会社 光送信装置およびこれに用いる光変調器のバイアス電圧制御方法
US6862317B1 (en) * 2000-07-25 2005-03-01 Thomson Licensing S.A. Modulation technique providing high data rate through band limited channels
JP3721062B2 (ja) * 2000-08-30 2005-11-30 日本電信電話株式会社 光送信機
US7010056B1 (en) * 2000-10-10 2006-03-07 Freescale Semiconductor, Inc. System and method for generating ultra wideband pulses
DE60045385D1 (de) * 2000-10-13 2011-01-27 Mitsubishi Electric Corp Verfahren und einrichtung zur optischen übertragung
GB2370473B (en) 2000-12-21 2004-04-07 Marconi Caswell Ltd Improvements in or relating to optical communication
US6665500B2 (en) * 2001-01-29 2003-12-16 Oyster Optics, Inc. Dual-mode fiber optic telecommunications system and method
US20020109893A1 (en) * 2001-02-14 2002-08-15 Mehrdad Givehchi Methods and apparatus for generating return-to-zero optically encoded data stream
GB2372830B (en) * 2001-03-02 2003-05-21 Marconi Caswell Ltd Electro-optic gating arrangement with improved duty cycle
US20020131106A1 (en) 2001-03-16 2002-09-19 Peter Snawerdt Secure wave-division multiplexing telecommunications system and method
US7483639B2 (en) * 2001-05-10 2009-01-27 Fujitsu Limited Method and system for transmitting information in an optical communication system using distributed amplification
US7200344B1 (en) 2001-05-10 2007-04-03 Fujitsu Limited Receiver and method for a multichannel optical communication system
US7035543B1 (en) 2001-05-10 2006-04-25 Fujitsu Limited Method and system for demultiplexing non-intensity modulated wavelength division multiplexed (WDM) signals
US6941078B1 (en) * 2001-05-10 2005-09-06 Fujitsu Limited Method and system for communicating a clock signal over an optical link
US7082268B2 (en) * 2001-05-31 2006-07-25 Teradvance Communications, Llc Method and system for 80 and 160 gigabit-per-second QRZ transmission in 100 GHz optical bandwidth with enhanced receiver performance
JP4278332B2 (ja) * 2001-06-29 2009-06-10 日本電信電話株式会社 光送信器および光伝送システム
WO2003007024A2 (en) 2001-07-09 2003-01-23 Oyster Optics, Inc. Fiber optic telecommunications card with security detection
US6643046B2 (en) 2001-09-26 2003-11-04 Kabushiki Kaisha Toshiba Apparatus and method for optical modulation
US6775424B2 (en) * 2001-11-12 2004-08-10 Fujitsu Network Communications, Inc. Modulation and filtration of optical signals
US20030156774A1 (en) * 2002-02-15 2003-08-21 Jan Conradi Unipolar electrical to bipolar optical converter
US7155130B2 (en) * 2002-02-28 2006-12-26 Lucent Technologies Inc. NRZ-to-RZ conversion for communication systems
JP3892326B2 (ja) * 2002-03-26 2007-03-14 富士通株式会社 光変調器の制御装置
US7308210B2 (en) * 2002-04-05 2007-12-11 Kabushiki Kaisha Toshiba Optical modulating device, optical transmitting apparatus using the same, method of controlling optical modulating device, and control program recording medium
JP4110913B2 (ja) * 2002-10-11 2008-07-02 三菱電機株式会社 光送信器
KR100493095B1 (ko) * 2002-10-16 2005-06-02 삼성전자주식회사 광 전송 시스템
KR100480274B1 (ko) * 2002-11-29 2005-04-07 삼성전자주식회사 광위상변조기를 이용한 광전송시스템
KR100516654B1 (ko) * 2002-12-10 2005-09-22 삼성전자주식회사 마하젠더 변조기를 이용한 광 ｃｒｚ 송신장치
US7289560B2 (en) 2003-01-17 2007-10-30 Freesystems Pte. Ltd. Digital modulation and demodulation technique for reliable wireless (both RF and IR) and wired high bandwidth data transmission
KR100547746B1 (ko) * 2003-04-30 2006-01-31 삼성전자주식회사 듀오바이너리 광 전송장치
DE10329459A1 (de) * 2003-07-01 2005-01-20 Marconi Communications Gmbh Sender für ein optisches Nachrichtensignal
US7809281B2 (en) 2003-08-27 2010-10-05 Mitsubishi Denki Kabushiki Kaisha Optical transmitter
GB0327605D0 (en) * 2003-11-27 2003-12-31 Azea Networks Ltd Method and apparatus for producing chirped RZ-DPSK modulated optical signals
KR100592878B1 (ko) * 2003-12-18 2006-06-23 한국전자통신연구원 전기적으로 대역 제한된 광학적 디피에스케이(ｄｐｓｋ)변조 장치 및 방법
JP4663997B2 (ja) * 2004-03-09 2011-04-06 富士通株式会社 広入力ダイナミックレンジ光増幅器を用いた光伝送装置
US7466926B2 (en) * 2004-05-28 2008-12-16 Alcatel-Lucent Usa Inc. Method and apparatus for RZ-DPSK optical signal generation
US7346283B2 (en) * 2004-06-30 2008-03-18 Lucent Technologies Inc. Method and apparatus for CRZ-DQPSK optical signal generation
KR100651378B1 (ko) * 2004-10-20 2006-11-29 삼성전자주식회사 첩 영복귀-교호부호반전 광송신기
KR100617771B1 (ko) * 2004-11-20 2006-08-28 삼성전자주식회사 영복귀-교호부호반전 광송신기 및 이를 이용한영복귀-교호부호반전 광신호의 생성 방법
US7734190B2 (en) * 2005-02-24 2010-06-08 Futurewei Technologies, Inc. System and method for generating optical return-to-zero signals with differential bi-phase shift
US7606501B2 (en) 2005-02-25 2009-10-20 Futurewei Technologies, Inc. System and method for generating optical return-to-zero signals with alternating bi-phase shift and frequency chirp
US7720391B2 (en) * 2005-02-25 2010-05-18 Futurewei Technologies, Inc. System and method for generating optical return-to-zero signals with alternating bi-phase shift
JP4508915B2 (ja) * 2005-03-23 2010-07-21 京セラ株式会社 光送信装置及び可視光通信システム
GB2428149B (en) * 2005-07-07 2009-10-28 Agilent Technologies Inc Multimode optical fibre communication system
DE102005060472B3 (de) * 2005-12-17 2007-04-26 Atmel Germany Gmbh PLL-Frequenzgenerator
CN101212257B (zh) * 2006-12-31 2011-06-15 华为技术有限公司 一种用于产生多种码型光归零码信号的光发射机及其方法
CN102484535B (zh) * 2009-05-20 2015-07-08 新飞通光电公司 300脚和cfp msa模块中的40、50和100gb/s光收发器/转发器
JP5935105B2 (ja) * 2010-05-28 2016-06-15 国立大学法人東北大学 非同期プロトコル変換装置
CN103999381B (zh) * 2011-10-20 2016-06-01 三菱电机株式会社 预均衡光发送机以及预均衡光发送方法
US9094130B2 (en) * 2013-04-24 2015-07-28 Broadcom Corporation Linearization of optical intensity modulation systems
US9001925B1 (en) * 2014-06-27 2015-04-07 L-3 Communications Corp. Digital architecture for encoding a return-to-zero differential phase shift keying waveform
US9526163B2 (en) * 2015-03-11 2016-12-20 Intel IP Corporation Device and method for crosstalk reduction in transmission lines
WO2016168717A1 (en) * 2015-04-17 2016-10-20 Aurora Networks, Inc. Sychronization of sbs suppression modulation to enable small offset, obi free, wdm signal transmission

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5543952A (en) * 1994-09-12 1996-08-06 Nippon Telegraph And Telephone Corporation Optical transmission system
US5625722A (en) 1994-12-21 1997-04-29 Lucent Technologies Inc. Method and apparatus for generating data encoded pulses in return-to-zero format
US5917638A (en) * 1997-02-13 1999-06-29 Lucent Technologies, Inc. Duo-binary signal encoding
US6072615A (en) * 1997-06-13 2000-06-06 Lucent Technologies Inc. Phase modulator-based generation of high-quality high bit rate return-to-zero optical data streams

Also Published As

Publication number Publication date
EP0977382A3 (de) 2003-09-10
EP0977382B1 (de) 2009-05-13
EP0977382A2 (de) 2000-02-02
US6559996B1 (en) 2003-05-06

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Legal Events

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8364 No opposition during term of opposition