DE69423152T2 - Optisches Übertragungssystem mit Wellenlängenmultiplexierung und optischer Verstärkung - Google Patents

Optisches Übertragungssystem mit Wellenlängenmultiplexierung und optischer Verstärkung

Info

Publication number
DE69423152T2
DE69423152T2 DE69423152T DE69423152T DE69423152T2 DE 69423152 T2 DE69423152 T2 DE 69423152T2 DE 69423152 T DE69423152 T DE 69423152T DE 69423152 T DE69423152 T DE 69423152T DE 69423152 T2 DE69423152 T2 DE 69423152T2
Authority
DE
Germany
Prior art keywords
optical
transmission system
division multiplexing
wavelength division
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 - Fee Related
Application number
DE69423152T
Other languages
English (en)
Other versions
DE69423152D1 (de
Inventor
Richard Edward Epworth
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.)
Nortel Networks Ltd
Original Assignee
Nortel Networks 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 Nortel Networks Corp filed Critical Nortel Networks Corp
Application granted granted Critical
Publication of DE69423152D1 publication Critical patent/DE69423152D1/de
Publication of DE69423152T2 publication Critical patent/DE69423152T2/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
    • H04B10/29—Repeaters
    • H04B10/291—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form
    • H04B10/293—Signal power control
    • H04B10/294—Signal power control in a multiwavelength system, e.g. gain equalisation
    • H04B10/296—Transient power control, e.g. due to channel add/drop or rapid fluctuations in the input power
    • 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
    • H04B10/29—Repeaters
    • H04B10/291—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form
    • H04B10/2912—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form characterised by the medium used for amplification or processing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0221—Power control, e.g. to keep the total optical power constant
DE69423152T 1993-07-31 1994-07-28 Optisches Übertragungssystem mit Wellenlängenmultiplexierung und optischer Verstärkung Expired - Fee Related DE69423152T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9315912A GB2280561B (en) 1993-07-31 1993-07-31 Optical transmission system

Publications (2)

Publication Number Publication Date
DE69423152D1 DE69423152D1 (de) 2000-04-06
DE69423152T2 true DE69423152T2 (de) 2000-07-06

Family

ID=10739785

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69423152T Expired - Fee Related DE69423152T2 (de) 1993-07-31 1994-07-28 Optisches Übertragungssystem mit Wellenlängenmultiplexierung und optischer Verstärkung

Country Status (4)

Country Link
US (1) US5463487A (de)
EP (1) EP0637148B1 (de)
DE (1) DE69423152T2 (de)
GB (1) GB2280561B (de)

Families Citing this family (70)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3379052B2 (ja) * 1994-09-26 2003-02-17 富士通株式会社 波長多重光増幅装置及び光波長多重伝送システム及び光波長多重伝送方法
JP3306693B2 (ja) * 1995-01-19 2002-07-24 富士通株式会社 光増幅装置，光波長多重通信システム，光端局装置及び光中継装置
JP3770635B2 (ja) * 1995-06-20 2006-04-26 富士通株式会社 不要強度変調成分抑圧機能を有する光受信機
JP2871547B2 (ja) * 1995-09-08 1999-03-17 日本電気株式会社 光スペクトルアナライザ装置および光増幅器の制御方法
GB9518922D0 (en) * 1995-09-15 1995-11-15 Integrated Optical Components Controlling optical signals
JP3363003B2 (ja) 1995-10-03 2003-01-07 株式会社日立製作所 光増幅装置及び光増幅装置を用いた光伝送システム
JP3739453B2 (ja) * 1995-11-29 2006-01-25 富士通株式会社 光増幅器及び該光増幅器を備えた光通信システム
JPH09185091A (ja) * 1995-12-28 1997-07-15 Nec Corp 波長多重光伝送装置
FR2743233B1 (fr) * 1995-12-28 1998-01-23 Alcatel Nv Systeme de repartition de signaux optiques
US6108113A (en) * 1995-12-29 2000-08-22 Mci Communications Corporation Method and system for transporting ancillary network data
JP3739471B2 (ja) 1996-03-01 2006-01-25 富士通株式会社 光可変減衰器
JP2976874B2 (ja) * 1996-03-08 1999-11-10 日本電気株式会社 光受信装置
JP2910667B2 (ja) * 1996-04-09 1999-06-23 日本電気株式会社 線形中継光増幅伝送装置
US6025947A (en) * 1996-05-02 2000-02-15 Fujitsu Limited Controller which controls a variable optical attenuator to control the power level of a wavelength-multiplexed optical signal when the number of channels are varied
JPH09321701A (ja) * 1996-05-31 1997-12-12 Fujitsu Ltd 光通信システム及び光増幅器
JPH09326770A (ja) * 1996-06-06 1997-12-16 Nec Corp 波長分割多重伝送システムに用いられる線形中継器
JP2904131B2 (ja) * 1996-07-04 1999-06-14 日本電気株式会社 波長多重光増幅装置と波長多重光伝送装置
US6175436B1 (en) * 1996-07-30 2001-01-16 Tellium, Inc. Automatic feedback gain control for multiple channels in a doped optical fiber amplifier
JP3006500B2 (ja) * 1996-08-01 2000-02-07 日本電気株式会社 波長多重光伝送用光増幅装置
SE514609C2 (sv) 1996-09-13 2001-03-19 Ericsson Telefon Ab L M System och förfarande för reglering av uteffekten hos en optisk förstärkare
SE506403C2 (sv) * 1996-09-13 1997-12-15 Ericsson Telefon Ab L M Transmissionssystem med återkopplad optisk förstärkare
US5907420A (en) * 1996-09-13 1999-05-25 Lucent Technologies, Inc. System and method for mitigating cross-saturation in optically amplified networks
US5699081A (en) * 1996-09-26 1997-12-16 Lucent Technologies Inc. Apparatus and method for automatically provisioning power on a per channel basis in a communications transmission system
JP2991131B2 (ja) * 1996-10-07 1999-12-20 日本電気株式会社 信号光チャネル数計数器とこれを用いた光増幅装置
US5719697A (en) * 1996-10-10 1998-02-17 At&T Submarine Systems, Inc. Method and apparatus for combining add/drop optical signal lines from a plurality of branching units
JP2914334B2 (ja) * 1997-01-20 1999-06-28 日本電気株式会社 光波長多重通信システムの光増幅器出力レベル制御方式
US5900969A (en) * 1997-02-14 1999-05-04 Lucent Technologies Inc. Broadband flat gain optical amplifier
SE509968C2 (sv) * 1997-02-14 1999-03-29 Ericsson Telefon Ab L M Optisk förstärkare med variabel förstärkning
JP3860278B2 (ja) 1997-03-13 2006-12-20 富士通株式会社 遠隔励起方式の波長多重光伝送システム
JP4240551B2 (ja) * 1997-03-19 2009-03-18 富士通株式会社 光増幅装置
JP3068500B2 (ja) * 1997-04-25 2000-07-24 日本電気株式会社 光信号増幅伝送方式
JPH10303821A (ja) * 1997-04-25 1998-11-13 Nec Corp 光信号増幅伝送方式
JPH10341206A (ja) * 1997-06-06 1998-12-22 Nec Corp 波長多重伝送装置
US5923450A (en) * 1998-09-30 1999-07-13 Alcatel Network Systems, Inc. Optical channel regulator and method
JP3050304B2 (ja) * 1997-12-04 2000-06-12 日本電気株式会社 光ａｄｍ装置
JP3166695B2 (ja) * 1998-01-05 2001-05-14 日本電気株式会社 波長分割多重送信装置
DE69835510T2 (de) * 1998-02-06 2007-08-09 Fujitsu Ltd., Kawasaki Optischer verstärker und verfahren zur steuerung der lichtquellenerregung von einem optischen verstärker
US6124957A (en) * 1998-02-13 2000-09-26 Lucent Technologies Inc. Optical signal translator unit
US6496300B2 (en) 1998-02-27 2002-12-17 Fujitsu Limited Optical amplifier
US6441955B1 (en) * 1998-02-27 2002-08-27 Fujitsu Limited Light wavelength-multiplexing systems
KR20000042660A (ko) * 1998-12-26 2000-07-15 서평원 광중계 시스템의 이득제어방법
IL128557A (en) 1999-02-16 2003-04-10 Eci Telecom Ltd Wave division multiplexing communications system
US6236481B1 (en) 1999-06-09 2001-05-22 Astarte Fiber Networks, Inc. Method and apparatus for providing loss equalization and adjustment in a fiber optic network
GB2352104B (en) * 1999-07-15 2003-01-15 Marconi Comm Ltd Communications systems
EP1120925B1 (de) * 1999-07-30 2007-10-17 Mitsubishi Denki Kabushiki Kaisha Optischer verstärkungswiederholer und optischer verstärkungswiederholer und übertragungsanordnung
FR2800217B1 (fr) * 1999-10-25 2002-10-11 Cit Alcatel Systeme de transmission optique a signaux de charge sdh ou fec, avec une surmodulation de sous porteuse optimisee
AU781588B2 (en) * 2000-01-17 2005-06-02 University Of Sydney, The Method and apparatus for monitoring of data channels
AUPQ511700A0 (en) * 2000-01-17 2000-02-10 University Of Sydney, The Method and apparatus for monitoring of data channels
US6760532B1 (en) 2000-01-28 2004-07-06 Ciena Corporation Optical device having dynamic channel equalization
DE10046104C2 (de) * 2000-09-18 2002-08-29 Siemens Ag Verfahren und Vorrichtung zur Erkennung von Leitungsunterbrechungen in einem optischen WDM-System
US6961522B1 (en) 2000-11-22 2005-11-01 Cisco Technology, Inc. Automatic raman gain and tilt control for ultra-long-distance dense WDM optical communication system
US6542287B1 (en) * 2000-12-12 2003-04-01 Onetta, Inc. Optical amplifier systems with transient control
US6941079B1 (en) 2001-05-24 2005-09-06 Cisco Technology, Inc. Optical demultiplexer with multi-channel power control and tilt compensation
CA2449563C (en) * 2001-06-22 2011-12-06 John C. Carrick System and method for measuring power of optical signals carried over a fiber optic link
US7113705B2 (en) * 2001-06-29 2006-09-26 Tellabs Operations, Inc. Methods and apparatus for sensing multiple wavelengths simultaneously in a single wavelength sensing device
JP4651231B2 (ja) * 2001-07-26 2011-03-16 富士通株式会社 光伝送システム
GB2402282B (en) * 2001-07-26 2005-05-04 Fujitsu Ltd Optical repeater
US6980736B1 (en) * 2002-01-03 2005-12-27 Mci, Inc. Verification of path integrity in optical switch network
DE10202143A1 (de) * 2002-01-21 2003-08-14 Siemens Ag Anordnung und Verfahren zur Begrenzung von Übertragungskapazität auf einer Datenübertragungsstrecke
US20040017603A1 (en) * 2002-07-29 2004-01-29 Paul Jay Optical amplifier controller
US7031050B2 (en) * 2002-08-14 2006-04-18 Tropic Networds Inc. Method and system for precision cross-talk cancellation in optical amplifiers
US7412166B2 (en) * 2003-04-30 2008-08-12 Tellabs Operations, Inc. Pilot tones for optical signal wavelength identification and power measurement
US7027210B2 (en) * 2003-05-29 2006-04-11 Fujitsu Limited Method and system for determining gain for an optical signal
US7009761B2 (en) * 2003-05-29 2006-03-07 Fujitsu Limited Power tilt compensation using automatic power balance control
US7974317B2 (en) * 2007-12-20 2011-07-05 Qualcomm Incorporated Systems and methods for controlling the voltage of signals used to control power amplifiers
JP5177035B2 (ja) * 2009-03-19 2013-04-03 日本電気株式会社 波長分割多重装置、波長分割多重伝送システムおよび波長多重信号制御方法
JP5838827B2 (ja) * 2012-01-23 2016-01-06 富士通株式会社 光伝送装置、及び光伝送方法
CN102571213B (zh) * 2012-02-02 2017-02-08 中兴通讯股份有限公司 一种实现光放大器增益控制的装置和方法
EP2642676B1 (de) 2012-03-20 2017-03-15 ADVA Optical Networking SE Verfahren und Einrichtung zum Betrieb eines optischen Übertragungssystems
US9667312B2 (en) * 2015-01-13 2017-05-30 Hughes Network Systems, Llc Radio based automatic level control for linear radio calibration

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4616898A (en) * 1980-03-31 1986-10-14 Polaroid Corporation Optical communication systems using raman repeaters and components therefor
JPH0681119B2 (ja) * 1986-04-17 1994-10-12 日本電気株式会社 波長多重光伝送方式
JP2787820B2 (ja) * 1990-07-20 1998-08-20 キヤノン株式会社 波長多重光通信システム及びそこで用いられる光増幅装置
US5035481A (en) * 1990-08-23 1991-07-30 At&T Bell Laboratories Long distance soliton lightwave communication system
JP3110805B2 (ja) * 1991-07-01 2000-11-20 富士通株式会社 光中継システム
US5225922A (en) * 1991-11-21 1993-07-06 At&T Bell Laboratories Optical transmission system equalizer
US5276543A (en) * 1991-11-22 1994-01-04 Gte Laboratories Incorporated Optical signal equalizer for wavelength division multiplexed optical fiber systems
JPH05191380A (ja) * 1992-01-13 1993-07-30 Fujitsu Ltd 波長多重伝送方式
US5280383A (en) * 1992-12-02 1994-01-18 At&T Bell Laboratories Dual-stage low power optical amplifier

Also Published As

Publication number Publication date
GB9315912D0 (en) 1993-09-15
EP0637148B1 (de) 2000-03-01
GB2280561A (en) 1995-02-01
GB2280561B (en) 1997-03-26
US5463487A (en) 1995-10-31
DE69423152D1 (de) 2000-04-06
EP0637148A1 (de) 1995-02-01

Similar Documents

Publication Publication Date Title
DE69423152D1 (de) Optisches Übertragungssystem mit Wellenlängenmultiplexierung und optischer Verstärkung
DE69630812D1 (de) Optische übertragungssysteme mit optischen verstärkern und wellenlängenmultiplexierung
DE69601815T2 (de) Bidirektionelles optisches Übertragungssystem mit bidirektionalem optischem Verstärker
GB2303984B (en) Wavelength division multiplexing optical transmission system and optical transmitting device used in the transmission system
DE69636708D1 (de) Optisches Übertragungssystem und optischer Verstärker
DE69734702D1 (de) Optisches Übertragungssystem mit Inline-Verstärkern
DE69225024T2 (de) Optisches Übertragungssystem mit Frequenzmultiplexierung
DE69737813D1 (de) Optisches Kommunikationssystem mit optischer Verstärkung
DE69107723D1 (de) Optisches Übertragungssystem mit Faserverstärker.
DE69740015D1 (de) Optisches Übertragungssystem
DE69627165D1 (de) Optisches uebertragungssystem
DK0627639T3 (da) Optisk fiber til bölgelængdemultiplexing
DE69427715D1 (de) Optisches Netzwerk mit kompaktem Wellenlängendemultiplexer
DE69232475T2 (de) Optisches Übertragungssystem
DE69123354T2 (de) Optisches übertragungssystem
DE69432502D1 (de) Leitungsungebundenes optisches Übertragungssystem
DE69326001T2 (de) Optisches nachrichtenübertragungssystem
DE69430108D1 (de) Optisches Übertragungssystem
DE69431626D1 (de) Lichtwellenleiterübertragungssystem
DE69324879T2 (de) Optisches Übertragungssystem
DE69829822D1 (de) Optisches Wellenlängenmultiplex Übertragungssystem mit Wellenlängenwählern
DE69128537T2 (de) Optisches Übertragungssystem
DE59407842D1 (de) Faseroptischer Transmissionssensor mit Modulator
DE69533274D1 (de) Optisches Zeitgetrenntlage-Übertragungssystem
DE69738885D1 (de) Faseroptische übertragung mit faserverstärkern und überwachungssignalen

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: NORTEL NETWORKS LTD., ST.LAURENT, QUEBEC, CA

8339 Ceased/non-payment of the annual fee