DE69828347D1 - Verfahren und Vorrichtung zum Extrahieren eines Taktsignals - Google Patents

Verfahren und Vorrichtung zum Extrahieren eines Taktsignals

Info

Publication number
DE69828347D1
DE69828347D1 DE69828347T DE69828347T DE69828347D1 DE 69828347 D1 DE69828347 D1 DE 69828347D1 DE 69828347 T DE69828347 T DE 69828347T DE 69828347 T DE69828347 T DE 69828347T DE 69828347 D1 DE69828347 D1 DE 69828347D1
Authority
DE
Germany
Prior art keywords
extracting
clock signal
clock
signal
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 - Fee Related
Application number
DE69828347T
Other languages
English (en)
Other versions
DE69828347T2 (de
Inventor
George Ishikawa
Hiroki Ooi
Takeshi Ihara
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.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Application granted granted Critical
Publication of DE69828347D1 publication Critical patent/DE69828347D1/de
Publication of DE69828347T2 publication Critical patent/DE69828347T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H04B10/25—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
    • H04B10/2519—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion due to chromatic dispersion using Bragg gratings
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/02—Speed or phase control by the received code signals, the signals containing no special synchronisation information
    • H04L7/027—Speed or phase control by the received code signals, the signals containing no special synchronisation information extracting the synchronising or clock signal from the received signal spectrum, e.g. by using a resonant or bandpass circuit
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/02—Speed or phase control by the received code signals, the signals containing no special synchronisation information
    • H04L7/033—Speed or phase control by the received code signals, the signals containing no special synchronisation information using the transitions of the received signal to control the phase of the synchronising-signal-generating means, e.g. using a phase-locked loop

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)
DE69828347T 1997-09-11 1998-04-23 Verfahren und Vorrichtung zum Extrahieren eines Taktsignals Expired - Fee Related DE69828347T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP24708697 1997-09-11
JP24708697A JP3770711B2 (ja) 1997-09-11 1997-09-11 タイミング信号生成装置及び方法

Publications (2)

Publication Number Publication Date
DE69828347D1 true DE69828347D1 (de) 2005-02-03
DE69828347T2 DE69828347T2 (de) 2005-10-13

Family

ID=17158226

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69828347T Expired - Fee Related DE69828347T2 (de) 1997-09-11 1998-04-23 Verfahren und Vorrichtung zum Extrahieren eines Taktsignals

Country Status (5)

Country Link
US (1) US6204949B1 (de)
EP (1) EP0902559B1 (de)
JP (1) JP3770711B2 (de)
CN (1) CN1196283C (de)
DE (1) DE69828347T2 (de)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69929640T2 (de) 1998-03-30 2006-12-07 Fujitsu Ltd. Verfahren zur Einstellung der Signalwellenlänge in einem optischen Übertragungssystem
FR2791835B1 (fr) * 1999-03-31 2001-06-29 Cit Alcatel Dispositif et procede de compensation de la dispersion de polarisation dans un systeme de transmission optique
IT1310666B1 (it) * 1999-08-03 2002-02-19 Cselt Centro Studi Lab Telecom Ricevitore per segnali a flusso discontinuo e relativo procedimento diricezione.
US6792209B1 (en) * 1999-12-22 2004-09-14 At&T Corp. Method and system for reducing non-linear cross talk in low dispersion optical fiber
EP1179900A1 (de) 2000-08-11 2002-02-13 Alcatel Optischer Empfänger mit einer Taktrückgewinnung eines Eingangssignals und eine zusätzliche Phaseneinstellung von dem zurückgewonnenen Taktsignal
US20030039013A1 (en) * 2001-08-27 2003-02-27 Jones David J. Dynamic dispersion compensation in high-speed optical transmission systems
US7197245B1 (en) * 2002-03-15 2007-03-27 Xtera Communications, Inc. System and method for managing system margin
US7058311B1 (en) 2002-03-15 2006-06-06 Xtera Communications, Inc. System and method for dispersion compensation in an optical communication system
US6819478B1 (en) 2002-03-15 2004-11-16 Xtera Communications, Inc. Fiber optic transmission system with low cost transmitter compensation
DE10216281B4 (de) * 2002-04-12 2007-04-12 Noé, Reinhold, Prof. Dr.-Ing. Anordnung und Verfahren für eine Dispersionsdetektion
JP4082992B2 (ja) * 2002-11-21 2008-04-30 富士通株式会社 光分散モニタ装置および方法、並びに、それを用いた光伝送システム
CA2427416C (en) * 2003-05-01 2010-11-16 101039130 Saskatchewan Ltd. Steering device for towed implements
US20040234275A1 (en) * 2003-05-20 2004-11-25 Aref Chowdhury Process for optical communication and system for same
JP2005159928A (ja) * 2003-11-28 2005-06-16 Hitachi Communication Technologies Ltd 自動分散補償方法
US7454144B2 (en) * 2003-12-05 2008-11-18 Lucent Technologies Inc. Low total excursion dispersion maps
JP4464959B2 (ja) * 2004-02-20 2010-05-19 富士通株式会社 分散補償方法及び分散補償装置
JP2005341392A (ja) * 2004-05-28 2005-12-08 Fujitsu Ltd 光伝送装置、光伝送システムおよび分散補償方法
US20080194998A1 (en) * 2005-05-24 2008-08-14 Nils Holmstrom Method, Device and Computer-Readable Medium for Evaluating Prevalence of Different Patient Postures
EP1819070A1 (de) * 2006-02-09 2007-08-15 Alcatel Lucent Taktrückgewinnungsschaltung und Verfahren für einen digitalen optischen Empfänger.
US20080212658A1 (en) * 2007-03-01 2008-09-04 Ahmadreza Rofougaran Method and system for communication of signals using a direct digital frequency synthesizer (ddfs)
JP2009117921A (ja) * 2007-11-01 2009-05-28 Sumitomo Electric Ind Ltd 光受信器、及び、光受信器の制御方法
JP5458826B2 (ja) * 2009-11-24 2014-04-02 富士通株式会社 分散補償装置、光受信装置、分散補償方法および光受信方法
US9178614B2 (en) * 2011-01-24 2015-11-03 Nippon Telegraph And Telephone Corporation Method for estimating amount of wavelength dispersion, wavelength dispersion compensation circuit, and receiving device
JP6687939B2 (ja) * 2016-01-15 2020-04-28 国立研究開発法人情報通信研究機構 光電変換器
US11502756B2 (en) * 2020-06-23 2022-11-15 Infinera Corporation Data synchronization in optical networks and devices

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06216467A (ja) 1993-01-19 1994-08-05 Hitachi Ltd 半導体光分散補償器
US5574588A (en) * 1994-02-23 1996-11-12 Nippon Telegraph And Telephone Corporation Phase lock loop circuit using optical correlation detection
EP0684709B1 (de) 1994-05-25 2002-10-02 AT&T Corp. Optisches Übertragungssystem mit verstellbarer Dispersionskompensation
JP3846918B2 (ja) * 1994-08-02 2006-11-15 富士通株式会社 光伝送システム、光多重伝送システム及びその周辺技術
JPH08256106A (ja) 1995-03-17 1996-10-01 Fujitsu Ltd 光増幅海底伝送システムの分散補償装置
JP3522044B2 (ja) 1996-04-19 2004-04-26 富士通株式会社 光伝送システム

Also Published As

Publication number Publication date
JPH1188262A (ja) 1999-03-30
JP3770711B2 (ja) 2006-04-26
EP0902559A3 (de) 2004-02-11
EP0902559B1 (de) 2004-12-29
US6204949B1 (en) 2001-03-20
CN1196283C (zh) 2005-04-06
DE69828347T2 (de) 2005-10-13
EP0902559A2 (de) 1999-03-17
CN1211117A (zh) 1999-03-17

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee