DE69225024T2 - Optisches Übertragungssystem mit Frequenzmultiplexierung - Google Patents

Optisches Übertragungssystem mit Frequenzmultiplexierung

Info

Publication number
DE69225024T2
DE69225024T2 DE69225024T DE69225024T DE69225024T2 DE 69225024 T2 DE69225024 T2 DE 69225024T2 DE 69225024 T DE69225024 T DE 69225024T DE 69225024 T DE69225024 T DE 69225024T DE 69225024 T2 DE69225024 T2 DE 69225024T2
Authority
DE
Germany
Prior art keywords
transmission system
frequency division
optical transmission
division multiplexing
multiplexing
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
DE69225024T
Other languages
English (en)
Other versions
DE69225024D1 (de
Inventor
Hideaki Tsushima
Shinya Sasaki
Katsuhiko Kuboki
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.)
Hitachi Ltd
Original Assignee
Hitachi 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
Priority claimed from JP3165360A external-priority patent/JPH0514280A/ja
Priority claimed from JP32435391A external-priority patent/JP3246930B2/ja
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Application granted granted Critical
Publication of DE69225024D1 publication Critical patent/DE69225024D1/de
Publication of DE69225024T2 publication Critical patent/DE69225024T2/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
    • H04B10/50—Transmitters
    • H04B10/572—Wavelength control
    • 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
    • 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
    • H04B10/506—Multiwavelength transmitters
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)
DE69225024T 1991-07-05 1992-07-03 Optisches Übertragungssystem mit Frequenzmultiplexierung Expired - Fee Related DE69225024T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP3165360A JPH0514280A (ja) 1991-07-05 1991-07-05 光周波数分割多重伝送装置
JP32435391A JP3246930B2 (ja) 1991-12-09 1991-12-09 光周波数安定化方式

Publications (2)

Publication Number Publication Date
DE69225024D1 DE69225024D1 (de) 1998-05-14
DE69225024T2 true DE69225024T2 (de) 1998-12-03

Family

ID=26490123

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69225024T Expired - Fee Related DE69225024T2 (de) 1991-07-05 1992-07-03 Optisches Übertragungssystem mit Frequenzmultiplexierung

Country Status (3)

Country Link
US (1) US5408349A (de)
EP (2) EP0521514B1 (de)
DE (1) DE69225024T2 (de)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06224882A (ja) * 1992-10-03 1994-08-12 Canon Inc 光ｆｓｋ受信器及びそれを用いた光ｆｄｍ−ｆｓｋ伝送システム
EP0607029B1 (de) * 1993-01-14 2000-12-20 Nippon Telegraph And Telephone Corporation Optisches bidirektionales Kommunikationssystem mit Wellenlängenmultiplex
JP3303515B2 (ja) * 1994-03-18 2002-07-22 キヤノン株式会社 光通信方式及びそれを用いた光通信システム
JP3231545B2 (ja) * 1994-06-28 2001-11-26 富士通株式会社 光周波数安定化装置
JPH08316938A (ja) * 1995-05-17 1996-11-29 Canon Inc 複数のチャンネルを多重して通信を行う光通信方法及び光通信システム
US5717708A (en) * 1995-11-09 1998-02-10 Mells; Bradley Method and apparatus of stabilizing a semiconductor laser
JP3720112B2 (ja) * 1996-03-18 2005-11-24 富士通株式会社 波長分割多重が適用されるシステム及び光パワー制御装置
JPH1063350A (ja) * 1996-08-14 1998-03-06 Kokusai Denshin Denwa Co Ltd <Kdd> 光周波数安定化装置
KR100325687B1 (ko) * 1999-12-21 2002-02-25 윤덕용 주입된 비간섭성 광에 파장 잠김된 페브리-페롯 레이저다이오드를 이용한 파장분할 다중방식 광통신용 광원
WO2001056179A1 (en) * 2000-01-26 2001-08-02 Vyyo, Ltd. Programmable phy for broadband wireless access systems
WO2001056194A1 (en) 2000-01-26 2001-08-02 Vyyo, Ltd. Space diversity method and system for broadband wireless access
WO2001056231A1 (en) * 2000-01-26 2001-08-02 Vyyo, Ltd. Quality of service scheduling scheme for a broadband wireless access system
US7027776B2 (en) * 2000-01-26 2006-04-11 Vyyo, Inc. Transverter control mechanism for a wireless modem in a broadband access system
WO2001056188A1 (en) * 2000-01-26 2001-08-02 Vyyo, Ltd. Offset carrier frequency correction in a two-way broadband wireless access system
US6941119B2 (en) * 2000-01-26 2005-09-06 Vyyo Ltd. Redundancy scheme for the radio frequency front end of a broadband wireless hub
US6876834B2 (en) * 2000-01-26 2005-04-05 Vyyo, Ltd. Power inserter configuration for wireless modems
WO2001056309A1 (en) * 2000-01-26 2001-08-02 Vyyo, Ltd. Distributed processing for optimal qos in a broadband access system
AU2001243476A1 (en) 2000-03-07 2001-09-17 Vyyo, Ltd. Adaptive downstream modulation scheme for broadband wireless access systems
US7298715B2 (en) * 2000-03-14 2007-11-20 Vyyo Ltd Communication receiver with signal processing for beam forming and antenna diversity
US20020024693A1 (en) * 2000-05-02 2002-02-28 Eliezer Manor Optical frequency division multiplexing
US6407846B1 (en) 2001-03-16 2002-06-18 All Optical Networks, Inc. Photonic wavelength shifting method
US20020131125A1 (en) * 2001-03-16 2002-09-19 Myers Michael H. Replicated-spectrum photonic transceiving
US20020131100A1 (en) * 2001-03-16 2002-09-19 Myers Michael H. Method for photonic wavelength error detection
US6865345B2 (en) * 2001-08-28 2005-03-08 Agilent Technologies, Inc. Frequency translating devices and frequency translating measurement systems that utilize light-activated resistors
US20040208646A1 (en) * 2002-01-18 2004-10-21 Seemant Choudhary System and method for multi-level phase modulated communication
US7593647B2 (en) * 2002-09-19 2009-09-22 Novera Optics, Inc. Apparatuses and methods for automatic wavelength locking of an optical transmitter to the wavelength of an injected incoherent light signal
KR100473520B1 (ko) 2002-12-24 2005-03-10 한국과학기술원 외부 비간섭성 광원을 주입하여 파장 고정된 페브리-페롯레이저를 이용한 광 가입자 망
KR100955129B1 (ko) * 2003-05-30 2010-04-28 정보통신연구진흥원 비간섭성　광대역　광원을 이용한 파장분할다중방식　수동형　광 네트워크 구현 방법
GB2415309A (en) * 2004-06-18 2005-12-21 Univ Kent Canterbury Electro-magnetic terahertz transmission/reception system
US20090080559A1 (en) * 2005-05-11 2009-03-26 Michael Armbruster Antenna diversity by means of its through connection for receivers of digital radio signals
KR100698766B1 (ko) * 2005-09-07 2007-03-23 한국과학기술원 파장분할 다중방식 수동형 광 가입자 망 시스템에 사용되는장애 위치 감시 장치 및 이를 구비한 파장분할 다중방식수동형 광 가입자 망 시스템
KR100785436B1 (ko) * 2005-09-20 2007-12-13 한국과학기술원 방송 서비스와 통신 서비스를 융합한 파장분할 다중방식수동형 광 가입자망
US8571410B2 (en) * 2006-10-11 2013-10-29 Novera Optics, Inc. Mutual wavelength locking in WDM-PONS
JP2010206709A (ja) * 2009-03-05 2010-09-16 Fujitsu Optical Components Ltd 光受信器、光受信方法及び光伝送システム

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3509354C2 (de) * 1985-03-15 1994-10-13 Alcatel Nv Optisches Nachrichtenübertragungssystem
FR2586874B1 (fr) * 1985-08-29 1988-08-05 Comp Generale Electricite Dispositif de telecommunication par fibres optiques.
GB8522821D0 (en) * 1985-09-16 1985-10-23 British Telecomm Frequency referencing system
NL8700108A (nl) * 1987-01-19 1988-08-16 Philips Nv Optische zendinrichting.
DE3854730T2 (de) * 1987-06-09 1996-05-02 At & T Corp Optisches Übertragungssystem mit Konstanthalten einer Frequenzgruppe.
US4989201A (en) * 1987-06-09 1991-01-29 At&T Bell Laboratories Optical communication system with a stabilized "comb" of frequencies
CA1279414C (en) * 1987-06-26 1991-01-22 Makoto Nishio Apparatus for discriminating an optical signal from others and an apparatus for tuning an optical wavelength filter used in the same
JP2567680B2 (ja) * 1988-09-26 1996-12-25 日本電信電話株式会社 光周波数多重伝送方式

Also Published As

Publication number Publication date
EP0521514B1 (de) 1998-04-08
EP0521514A2 (de) 1993-01-07
US5408349A (en) 1995-04-18
EP0814578A2 (de) 1997-12-29
EP0521514A3 (en) 1994-09-21
EP0814578A3 (de) 1998-10-21
DE69225024D1 (de) 1998-05-14

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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