DE69604001D1 - Verfahren und Vorrichtung zur optischen Verstärkung - Google Patents

Verfahren und Vorrichtung zur optischen Verstärkung

Info

Publication number
DE69604001D1
DE69604001D1 DE69604001T DE69604001T DE69604001D1 DE 69604001 D1 DE69604001 D1 DE 69604001D1 DE 69604001 T DE69604001 T DE 69604001T DE 69604001 T DE69604001 T DE 69604001T DE 69604001 D1 DE69604001 D1 DE 69604001D1
Authority
DE
Germany
Prior art keywords
optical amplification
amplification
optical
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
DE69604001T
Other languages
English (en)
Other versions
DE69604001T2 (de
Inventor
Tadayuki Iwano
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 DE69604001D1 publication Critical patent/DE69604001D1/de
Publication of DE69604001T2 publication Critical patent/DE69604001T2/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
    • H04B10/29—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
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
    • H01S3/13—Stabilisation of laser output parameters, e.g. frequency or amplitude
    • H01S3/1301—Stabilisation of laser output parameters, e.g. frequency or amplitude in optical amplifiers
    • H01S3/13013—Stabilisation of laser output parameters, e.g. frequency or amplitude in optical amplifiers by controlling the optical pumping
    • 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
    • H04B10/2942—Signal power control in a multiwavelength system, e.g. gain equalisation using automatic gain control [AGC]
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
    • H01S3/06—Construction or shape of active medium
    • H01S3/063—Waveguide lasers, i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
    • H01S3/067—Fibre lasers
    • H01S3/06754—Fibre amplifiers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
    • H01S3/13—Stabilisation of laser output parameters, e.g. frequency or amplitude
    • H01S3/1305—Feedback control systems

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Plasma & Fusion (AREA)
  • Optics & Photonics (AREA)
  • Optical Communication System (AREA)
  • Lasers (AREA)
DE69604001T 1995-03-14 1996-03-12 Verfahren und Vorrichtung zur optischen Verstärkung Expired - Lifetime DE69604001T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7054005A JP2723067B2 (ja) 1995-03-14 1995-03-14 光増幅装置

Publications (2)

Publication Number Publication Date
DE69604001D1 true DE69604001D1 (de) 1999-10-07
DE69604001T2 DE69604001T2 (de) 2000-05-31

Family

ID=12958480

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69604001T Expired - Lifetime DE69604001T2 (de) 1995-03-14 1996-03-12 Verfahren und Vorrichtung zur optischen Verstärkung

Country Status (4)

Country Link
US (1) US5644423A (de)
EP (1) EP0732786B1 (de)
JP (1) JP2723067B2 (de)
DE (1) DE69604001T2 (de)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
JPH09185091A (ja) * 1995-12-28 1997-07-15 Nec Corp 波長多重光伝送装置
JP2877062B2 (ja) * 1996-01-19 1999-03-31 日本電気株式会社 光信号異常検出回路
JP2904114B2 (ja) * 1996-04-23 1999-06-14 日本電気株式会社 光増幅装置とこれを用いた波長多重光伝送装置
DE19625870A1 (de) * 1996-06-27 1998-01-08 Schleifring & Apparatebau Gmbh Vorrichtung zum Empfang optischer Signale mit einem lichtleitenden Gegenstand
US6175436B1 (en) * 1996-07-30 2001-01-16 Tellium, Inc. Automatic feedback gain control for multiple channels in a doped optical fiber amplifier
KR100210913B1 (ko) * 1996-08-01 1999-07-15 윤종용 전송광의 파장을 자동 추적하여 필터링하는 광섬유증폭기 및 그 운용방법
US5907420A (en) * 1996-09-13 1999-05-25 Lucent Technologies, Inc. System and method for mitigating cross-saturation in optically amplified networks
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
JPH10178627A (ja) * 1996-10-18 1998-06-30 Canon Inc サーバシステム及びサーバシステムにおける信号の配信方法
JP3075200B2 (ja) * 1996-12-10 2000-08-07 日本電気株式会社 信号光モニタとこれを用いた光増幅器
US6038355A (en) * 1997-07-17 2000-03-14 Natural Microsystems Corporation Optical bus
JP3884841B2 (ja) * 1997-11-14 2007-02-21 株式会社日立コミュニケーションテクノロジー 光伝送システム及び光通信装置
KR100295810B1 (ko) * 1998-06-02 2001-10-26 서평원 파장분할다중방식광전송망채널감시시스템
EP0964535A1 (de) * 1998-06-12 1999-12-15 PIRELLI CAVI E SISTEMI S.p.A. Wellenlängenmultiplex-Telekommunikationssystem mit einem optischen Kanalanalysator
JP2000041006A (ja) * 1998-07-23 2000-02-08 Nec Corp 光伝送信号の再生中継方法およびこれを用いた光再生中継器並びに波長多重光伝送システム
FI982841A (fi) * 1998-12-31 2000-07-01 Nokia Networks Oy Optisella kuidulla kulkevien signaalien aallonpituuksien monitorointi
US6347104B1 (en) * 1999-02-04 2002-02-12 Genoa Corporation Optical signal power monitor and regulator
US6580549B1 (en) * 1999-02-05 2003-06-17 Fujitsu Limited Wavelength-multiplexed light amplifying apparatus, optical amplifier and optical add-and-drop apparatus using wavelength-multiplexed light amplifying basic unit
US6476953B1 (en) * 1999-08-18 2002-11-05 Fujitsu Network Communications, Inc. Wavelength preserving regenerator for DWDM transmission systems
KR100338629B1 (ko) * 1999-10-25 2002-05-30 윤종용 파장분할다중화 시스템용 광섬유 증폭기의 고속 채널 감시 장치
US6356386B1 (en) 2000-02-29 2002-03-12 Lucent Technologies Inc. Method and apparatus for stabilizing transient control in amplified optical networks
GB2363536B (en) * 2000-06-16 2004-03-24 Ericsson Telefon Ab L M WDM signal monitoring
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
US6941079B1 (en) 2001-05-24 2005-09-06 Cisco Technology, Inc. Optical demultiplexer with multi-channel power control and tilt compensation
US6751014B2 (en) * 2001-06-19 2004-06-15 International Business Machines Corporation Automatic gain control and dynamic equalization of erbium doped optical amplifiers in wavelength multiplexing networks
KR100407346B1 (ko) * 2001-10-12 2003-11-28 삼성전자주식회사 모니터링 장치를 구비한 반도체 광증폭기 모듈
KR100832505B1 (ko) * 2006-12-21 2008-05-28 명지대학교 산학협력단 광섬유 증폭기의 이득제어기
US9219345B2 (en) * 2011-09-20 2015-12-22 Nec Corporation Optical amplification control apparatus and control method of the same

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US5268786A (en) * 1991-03-15 1993-12-07 Mitsubishi Denki Kabushiki Kaisha Optical fiber amplifier and its amplification method
JPH05235810A (ja) * 1992-02-20 1993-09-10 Nec Corp 遠隔制御システム及びそれに用いる端局装置、中継局装置
JP3256713B2 (ja) * 1992-06-27 2002-02-12 キヤノン株式会社 波長可変フィルタ制御方式、制御装置及びそれを用いた光通信システム
JPH06260710A (ja) * 1993-03-05 1994-09-16 Fujitsu Ltd 希土類ドープファイバ光増幅器及び光増幅多中継システム
JP2798582B2 (ja) * 1993-05-31 1998-09-17 日本電気 株式会社 光バンドパスフィルタ制御装置
JP2550898B2 (ja) * 1993-11-30 1996-11-06 日本電気株式会社 光増幅装置
US5539570A (en) * 1995-03-21 1996-07-23 Nec Corporation Monitoring state of optical elements in an optical amplifier

Also Published As

Publication number Publication date
DE69604001T2 (de) 2000-05-31
JPH08248457A (ja) 1996-09-27
EP0732786B1 (de) 1999-09-01
EP0732786A1 (de) 1996-09-18
JP2723067B2 (ja) 1998-03-09
US5644423A (en) 1997-07-01

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