DE69028562D1 - Verfahren zum Steuern der Polarisation von optischen Signalen in einem frequenzmultiplexierten kohärenten Nachrichtenübertragungssystem - Google Patents

Verfahren zum Steuern der Polarisation von optischen Signalen in einem frequenzmultiplexierten kohärenten Nachrichtenübertragungssystem

Info

Publication number
DE69028562D1
DE69028562D1 DE69028562T DE69028562T DE69028562D1 DE 69028562 D1 DE69028562 D1 DE 69028562D1 DE 69028562 T DE69028562 T DE 69028562T DE 69028562 T DE69028562 T DE 69028562T DE 69028562 D1 DE69028562 D1 DE 69028562D1
Authority
DE
Germany
Prior art keywords
polarization
controlling
communication system
frequency division
optical signals
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
DE69028562T
Other languages
English (en)
Other versions
DE69028562T2 (de
Inventor
Shuntaro Yamazaki
Takashi Ono
Haruhito Shimizu
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.)
NEC Corp
Original Assignee
NEC 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 NEC Corp filed Critical NEC Corp
Application granted granted Critical
Publication of DE69028562D1 publication Critical patent/DE69028562D1/de
Publication of DE69028562T2 publication Critical patent/DE69028562T2/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
    • H04B10/60—Receivers
    • H04B10/61—Coherent 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
    • H04B10/615—Arrangements affecting the optical part of the receiver
    • H04B10/6151—Arrangements affecting the optical part of the receiver comprising a polarization controller at the receiver's input stage
    • 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
    • H04B10/63—Homodyne, i.e. coherent receivers where the local oscillator is locked in frequency and phase to the carrier signal
    • 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
    • H04B10/64—Heterodyne, i.e. coherent receivers where, after the opto-electronic conversion, an electrical signal at an intermediate frequency [IF] is obtained

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)
DE69028562T 1989-03-16 1990-03-15 Verfahren zum Steuern der Polarisation von optischen Signalen in einem frequenzmultiplexierten kohärenten Nachrichtenübertragungssystem Expired - Fee Related DE69028562T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1065716A JP2540935B2 (ja) 1989-03-16 1989-03-16 一括偏波制御方法

Publications (2)

Publication Number Publication Date
DE69028562D1 true DE69028562D1 (de) 1996-10-24
DE69028562T2 DE69028562T2 (de) 1997-03-06

Family

ID=13295022

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69028562T Expired - Fee Related DE69028562T2 (de) 1989-03-16 1990-03-15 Verfahren zum Steuern der Polarisation von optischen Signalen in einem frequenzmultiplexierten kohärenten Nachrichtenübertragungssystem

Country Status (4)

Country Link
US (1) US5007693A (de)
EP (1) EP0387870B1 (de)
JP (1) JP2540935B2 (de)
DE (1) DE69028562T2 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5276543A (en) * 1991-11-22 1994-01-04 Gte Laboratories Incorporated Optical signal equalizer for wavelength division multiplexed optical fiber systems
USRE38359E1 (en) * 1991-11-22 2003-12-23 Verizon Laboratories Inc. Optical signal equalizer for wavelength division multiplexed optical fiber systems
US5311346A (en) * 1992-06-17 1994-05-10 At&T Bell Laboratories Fiber-optic transmission polarization-dependent distortion compensation
CA2164355C (en) * 1994-12-14 2000-12-19 Neal S. Bergano Dynamically controlled polarization modulation in wavelength division multiplexed transmission systems
DE19612604A1 (de) * 1996-03-29 1997-10-02 Sel Alcatel Ag Optischer Empfänger mit einer Entzerrerschaltung für durch PMD verursachte Störungen und System mit einem solchen optischen Empfänger
CN1543720A (zh) * 2001-08-16 2004-11-03 ����ɭ�绰�ɷ����޹�˾ 光放大器

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3727062A (en) * 1972-03-10 1973-04-10 Zenith Radio Corp Acousto-optic information translation system with reference beam for control purposes
US3908121A (en) * 1973-11-19 1975-09-23 Gte Laboratories Inc Integrated optical frequency-division multiplexer
US4467468A (en) * 1981-12-28 1984-08-21 At&T Bell Laboratories Optical communication system
GB8515499D0 (en) * 1985-06-19 1985-07-24 British Telecomm Digital information transmission system
US4703474A (en) * 1986-02-28 1987-10-27 American Telephone And Telegraph Company, At&T Bell Laboratories Spread spectrum code-division-multiple-access (SS-CDMA) lightwave communication system
DE3621734A1 (de) * 1986-06-28 1988-01-07 Standard Elektrik Lorenz Ag Optischer ueberlagerungsempfaenger
JPH0636621B2 (ja) * 1986-10-15 1994-05-11 日本電気株式会社 光交換機
DE3716247C2 (de) * 1987-05-15 1994-04-28 Sel Alcatel Ag Optisches Nachrichtenübertragungssystem mit Wellenlängen- und Polarisations-Multiplex
US4912527A (en) * 1987-07-24 1990-03-27 Nec Corporation Optical apparatus for pulling an intermediate frequency in a predetermined frequency range
JPS6470703A (en) * 1987-09-11 1989-03-16 Hitachi Ltd Waveguide type optical multiplexer and demultiplexer
JPH063511B2 (ja) * 1987-10-27 1994-01-12 日本電気株式会社 光ヘテロダイン・ホモダイン検波方法
JP2562623B2 (ja) * 1987-10-28 1996-12-11 国際電信電話株式会社 ベースバンド合成法による偏波ダイバーシティ光受信方式
US4956834A (en) * 1989-01-12 1990-09-11 The Boeing Company Coherence multiplexed optical signal transmission system and method

Also Published As

Publication number Publication date
DE69028562T2 (de) 1997-03-06
US5007693A (en) 1991-04-16
EP0387870B1 (de) 1996-09-18
EP0387870A2 (de) 1990-09-19
EP0387870A3 (de) 1992-04-08
JP2540935B2 (ja) 1996-10-09
JPH02244032A (ja) 1990-09-28

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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