DE69221542D1 - Optischer Verstärker - Google Patents

Optischer Verstärker

Info

Publication number
DE69221542D1
DE69221542D1 DE69221542T DE69221542T DE69221542D1 DE 69221542 D1 DE69221542 D1 DE 69221542D1 DE 69221542 T DE69221542 T DE 69221542T DE 69221542 T DE69221542 T DE 69221542T DE 69221542 D1 DE69221542 D1 DE 69221542D1
Authority
DE
Germany
Prior art keywords
optical amplifier
amplifier
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
DE69221542T
Other languages
English (en)
Other versions
DE69221542T2 (de
Inventor
Kazuo Aida
Hiroji Masuda
Kiyoshi Nakagawa
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone 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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Publication of DE69221542D1 publication Critical patent/DE69221542D1/de
Application granted granted Critical
Publication of DE69221542T2 publication Critical patent/DE69221542T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • H01S2301/00—Functional characteristics
    • H01S2301/02—ASE (amplified spontaneous emission), noise; Reduction thereof
    • 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
    • H01S3/06704—Housings; Packages
    • 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
    • H01S3/09—Processes or apparatus for excitation, e.g. pumping
    • H01S3/091—Processes or apparatus for excitation, e.g. pumping using optical pumping
    • H01S3/094—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light
    • H01S3/094003—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light the pumped medium being a fibre
    • H01S3/094011—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light the pumped medium being a fibre with bidirectional pumping, i.e. with injection of the pump light from both two ends of the fibre
    • 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
    • H01S5/00—Semiconductor lasers
    • H01S5/06—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
    • H01S5/068—Stabilisation of laser output parameters
    • H01S5/06825—Protecting the laser, e.g. during switch-on/off, detection of malfunctioning or degradation
    • 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
    • H01S5/00—Semiconductor lasers
    • H01S5/06—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
    • H01S5/068—Stabilisation of laser output parameters
    • H01S5/0683—Stabilisation of laser output parameters by monitoring the optical output parameters

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Optics & Photonics (AREA)
  • Lasers (AREA)
  • Light Guides In General And Applications Therefor (AREA)
DE69221542T 1991-06-03 1992-06-03 Optischer Verstärker Expired - Lifetime DE69221542T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3131326A JP2648643B2 (ja) 1991-06-03 1991-06-03 光増幅器

Publications (2)

Publication Number Publication Date
DE69221542D1 true DE69221542D1 (de) 1997-09-18
DE69221542T2 DE69221542T2 (de) 1998-03-19

Family

ID=15055338

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69221542T Expired - Lifetime DE69221542T2 (de) 1991-06-03 1992-06-03 Optischer Verstärker

Country Status (4)

Country Link
US (1) US5245690A (de)
EP (1) EP0517503B1 (de)
JP (1) JP2648643B2 (de)
DE (1) DE69221542T2 (de)

Families Citing this family (70)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3190036B2 (ja) * 1990-10-24 2001-07-16 住友電気工業株式会社 ファイバ増幅器及びファイバレーザ
DE4208858A1 (de) * 1992-03-19 1993-09-23 Sel Alcatel Ag Faseroptischer verstaerker mit regelung der pumplicht-wellenlaenge
US5471334A (en) * 1992-10-21 1995-11-28 Nippon Telegraph And Telephone Corporation Method and apparatus for monitoring noise figure of optical amplifier
DE4315846A1 (de) * 1993-03-30 1994-10-06 Sel Alcatel Ag Faseroptischer Verstärker
JPH06318754A (ja) * 1993-05-10 1994-11-15 Matsushita Electric Ind Co Ltd 光ファイバ増幅器および光信号伝送システム
GB2278230A (en) * 1993-05-18 1994-11-23 Northern Telecom Ltd Optical amplifier
DE4321856A1 (de) * 1993-07-01 1995-01-12 Sel Alcatel Ag Faseroptischer Verstärker mit einer Vorrichtung zur Überwachung der Pump- und Eingangsleistung
US5374973A (en) * 1993-09-21 1994-12-20 Alcatel Network Systems, Inc. Optical amplifier
JP3012760B2 (ja) * 1993-10-25 2000-02-28 三菱電機株式会社 光増幅器及び分配システム及びローカル・エリア・ネットワーク及び利得制御方法
JP2778438B2 (ja) * 1993-12-27 1998-07-23 日本電気株式会社 光増幅装置と光増幅器設計方法と光中継伝送システム
FR2714982B1 (fr) * 1994-01-13 1996-02-02 Alcatel Nv Amplificateur optique régulé.
US5526153A (en) * 1994-01-21 1996-06-11 At&T Corp. Optical channel adding/dropping filter
JPH0832162A (ja) * 1994-07-15 1996-02-02 Sumitomo Electric Ind Ltd 光増幅器
US5533163A (en) * 1994-07-29 1996-07-02 Polaroid Corporation Optical fiber structure for efficient use of pump power
JP3442897B2 (ja) * 1995-03-08 2003-09-02 Ｋｄｄｉ株式会社 範囲別利得制御光増幅器及び範囲別光増幅器利得制御方法及び光受信器及び光中継器
JPH08248455A (ja) * 1995-03-09 1996-09-27 Fujitsu Ltd 波長多重用光増幅器
JP2800715B2 (ja) * 1995-05-12 1998-09-21 日本電気株式会社 光ファイバ増幅器
JP2809132B2 (ja) * 1995-06-07 1998-10-08 日本電気株式会社 光増幅監視装置
FR2743233B1 (fr) * 1995-12-28 1998-01-23 Alcatel Nv Systeme de repartition de signaux optiques
CA2172873C (en) * 1996-03-28 2002-03-12 Kim Byron Roberts Method of determining optical amplifier failures
US6369938B1 (en) 1996-05-28 2002-04-09 Fujitsu Limited Multi-wavelength light amplifier
JP3909119B2 (ja) * 1996-10-31 2007-04-25 憲一 植田 レーザ装置
FR2755771B1 (fr) * 1996-11-13 1998-12-04 France Telecom Amplificateur a guide d'onde optique dope par des ions fluorescents, a gain regule par fluorescence transverse
JP3228462B2 (ja) * 1996-11-19 2001-11-12 セントラル硝子株式会社 光導波路及びそれを用いた１．５μｍ帯光増幅器
KR100207603B1 (ko) * 1997-01-28 1999-07-15 윤종용 광 증폭기 아이솔레이터 복합모듈 및 이를 사용한 광 증폭기
JP3065980B2 (ja) * 1998-01-07 2000-07-17 日本電気株式会社 光増幅器
US5912761A (en) * 1998-01-22 1999-06-15 Tyco Submarine Systems Ltd. Apparatus and method for controlling shared optical pump power sources
JPH11266047A (ja) * 1998-03-17 1999-09-28 Fujitsu Ltd 光増幅器及び該光増幅器を備えたシステム
US6603596B2 (en) 1998-03-19 2003-08-05 Fujitsu Limited Gain and signal level adjustments of cascaded optical amplifiers
US6052031A (en) * 1998-08-26 2000-04-18 Scientific-Atlanta, Inc. Signal level control circuit for amplifiers
DE60003736T2 (de) 1999-03-17 2004-06-03 Hamamatsu Photonics K.K., Hamamatsu Laservorrichtung und zugehöriger Verstärker für optische Signale
US6437320B1 (en) * 1999-04-27 2002-08-20 Nec Corporation Optical amplifier control unit, optical amplification apparatus, and transmission system
US6246510B1 (en) * 1999-04-28 2001-06-12 Marconi Communications, Inc. Light amplification apparatus with automatic monitoring and controls
KR100350482B1 (ko) 1999-07-22 2002-08-28 삼성전자 주식회사 비동기전송모드 무선접속망의 고장관리방법
US6366393B1 (en) 1999-08-25 2002-04-02 Lucent Technologies Inc. Fast gain control for optical amplifiers
US6583923B1 (en) * 1999-12-07 2003-06-24 Siemens Aktiengesellschaft Optical fiber amplifier
US6307670B1 (en) 1999-12-14 2001-10-23 Corning Incorporated Pump power control for optical fiber amplifier
JP2001196670A (ja) * 2000-01-12 2001-07-19 Oki Electric Ind Co Ltd 光増幅器
EP1130718A3 (de) * 2000-01-20 2003-07-02 Cyoptics (Israel) Ltd. Stabilisierter frequenzverstimmbarer Laser mit Fasergitter
KR100326318B1 (ko) 2000-02-09 2002-03-08 윤종용 파장분할다중화 시스템용 광섬유 증폭기의 일시 과도 현상억제 장치
US6414788B1 (en) 2000-10-02 2002-07-02 Onetta, Inc. Optical amplifier system with transient control
US6341034B1 (en) 2000-10-18 2002-01-22 Onetta Inc. Optical amplifier system with transient control using spectrally filtered input
US6498677B1 (en) 2000-10-23 2002-12-24 Onetta, Inc. Optical amplifier systems with transient control
US6441950B1 (en) 2000-11-03 2002-08-27 Onetta, Inc. Distributed raman amplifier systems with transient control
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
KR100358115B1 (ko) * 2000-12-14 2002-10-25 한국전자통신연구원 자동 이득 제어된 광섬유 증폭 장치
US6636345B2 (en) * 2001-02-27 2003-10-21 Corning Incorporated Optical fiber pumping system
JP3859455B2 (ja) 2001-03-07 2006-12-20 レーザーフロントテクノロジーズ株式会社 半導体レーザ励起固体レーザ装置及び該装置の状態診断方法
US6671085B2 (en) * 2001-04-11 2003-12-30 Bti Photonics Inc. Switchable dynamic gain-flattened optical amplifiers and methods with wide dynamic gain range
US6476961B1 (en) 2001-04-26 2002-11-05 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
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
US6989923B2 (en) 2001-08-08 2006-01-24 Photuris, Inc. Optical amplifier having automatic gain control with improved performance
US6690505B1 (en) 2001-09-28 2004-02-10 Onetta, Inc. Optical network equipment with gain transient control and automatic drift compensation
US6788870B1 (en) 2001-11-08 2004-09-07 Tyco Telecommunications (Us) Inc. Isothermal fiber optic tray
US7064890B2 (en) * 2001-12-10 2006-06-20 Sumitomo Electric Industries, Ltd. Optical amplifier and optical communication system including the same
US7177334B2 (en) * 2003-10-02 2007-02-13 Asia Optical Co., Ltd. High power driver system
US7433375B2 (en) * 2003-10-09 2008-10-07 National Semiconductor Corporation Laser trim and compensation methodology for passively aligning optical transmitter
US7321606B2 (en) * 2003-10-09 2008-01-22 National Semiconductor Corporation Laser trim and compensation methodology for passively aligning optical transmitter
JP2006066610A (ja) * 2004-08-26 2006-03-09 Fujitsu Ltd 光増幅装置、ラマン増幅器、光波長多重伝送システム、光波長多重伝送方法
JP5303961B2 (ja) * 2008-02-26 2013-10-02 富士通株式会社 光ファイバ増幅器、劣化検出器および劣化検出方法
US8953652B2 (en) 2011-01-31 2015-02-10 Ipg Photonics Corporation Method and apparatus for differentially controlling population inversion in gain medium
RU2480875C2 (ru) * 2011-01-31 2013-04-27 Ооо "Научно-Техническое Объединение "Ирэ-Полюс" Способ дифференциального контроля инверсии населенности лазерной среды и устройство его реализующее
CN103162822A (zh) * 2013-02-28 2013-06-19 中国人民解放军国防科学技术大学 基于积分球的光纤激光输出功率在线监测系统
EP2973895A1 (de) * 2013-03-13 2016-01-20 Nufern Optisches fasersystem mit einem entfernten leistungsmodul
US10739229B2 (en) * 2018-07-25 2020-08-11 Stc.Unm Systems and methods for measuring absorption coefficients of doped optical fibers
CN112986663A (zh) 2019-12-13 2021-06-18 福州高意通讯有限公司 一种L-band光纤放大器中前馈泵浦失效的探测结构及方法
GB202214966D0 (en) * 2019-12-13 2022-11-23 Ii Vi Delaware Inc Blind pump laser detection
TWI758923B (zh) * 2020-10-27 2022-03-21 財團法人工業技術研究院 雷射檢測系統

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5464902A (en) * 1977-11-01 1979-05-25 Fujitsu Ltd Optical transmitting device
JPS61168282A (ja) * 1985-01-21 1986-07-29 Canon Inc 半導体装置
JPH0628244B2 (ja) * 1987-12-09 1994-04-13 株式会社東芝 レーザ増幅器装置の励起制御装置
JPH06105821B2 (ja) * 1988-10-11 1994-12-21 株式会社東芝 レーザ増幅器装置の励起制御装置
FR2638854B1 (fr) * 1988-11-10 1992-09-04 Comp Generale Electricite Amplificateur laser a fibre optique dopee
JPH02273976A (ja) * 1989-04-17 1990-11-08 Nippon Telegr & Teleph Corp <Ntt> 光増幅器
GB2230912B (en) * 1989-04-22 1993-10-20 Stc Plc Optical amplifier gain control
KR940001043B1 (ko) * 1989-07-20 1994-02-08 스미도모덴기고오교오 가부시기가이샤 파이버형 광증폭기
US5018152A (en) * 1989-09-07 1991-05-21 Spectra-Physics, Inc. Apparatus for controlling pulse energy in a Q-switched laser system
IT1236632B (it) * 1989-10-24 1993-03-25 Pirelli Cavi Spa Amplificatore per linee di telecomunicazioni a fibre ottiche e linee di telecomunicazioni a fibre ottiche incorporanti detto amplificatore
IT1237980B (it) * 1990-02-12 1993-06-19 Pirelli Cavi Spa Amplificatore ottico a fibra attiva monomodale incurvata
GB9008735D0 (en) * 1990-04-18 1990-06-13 British Telecomm Fibre amplifier with automatic gain control
JP2649737B2 (ja) * 1990-07-05 1997-09-03 国際電信電話株式会社 光増幅器の励起光源駆動方式
US5181210A (en) * 1991-05-28 1993-01-19 At&T Bell Laboratories Electrically tunable fiber ring laser
US5159601A (en) * 1991-07-17 1992-10-27 General Instrument Corporation Method for producing a tunable erbium fiber laser

Also Published As

Publication number Publication date
JPH04356984A (ja) 1992-12-10
US5245690A (en) 1993-09-14
EP0517503A2 (de) 1992-12-09
JP2648643B2 (ja) 1997-09-03
EP0517503B1 (de) 1997-08-13
EP0517503A3 (en) 1994-01-12
DE69221542T2 (de) 1998-03-19

Similar Documents

Publication Publication Date Title
DE69221542T2 (de) Optischer Verstärker
DE69325672D1 (de) Optischer Verstärker
DE69117728D1 (de) Optischer verstärker
DE69129281T2 (de) Optischer Halbleiterverstärker
DE69416031D1 (de) Optischer Verstärker
DE69129807D1 (de) Lichtverstärkungspolarisator
DE69104573D1 (de) Optischer Verstärker.
DE69400790D1 (de) Optischer Verstärker
DE69219359D1 (de) Transimpedanzverstärker
DE69228393T2 (de) Faseroptischer Verstärker
DE69319008D1 (de) Verstärker
DE69026815D1 (de) Optischer verstärker
DE69413939D1 (de) Bidirektionaler optischer Verstärker
DE69322737T2 (de) Verstärker
DK137691A (da) Optisk fiberforstaerker
DE69231901D1 (de) Transimpedanz-differenzverstärker
DE69225898T2 (de) Verstärker
DE69224125T2 (de) Leseverstärker
DE69315949T2 (de) Optischer Halbleiterverstärker
DE69229893T2 (de) Optische Verstärker
DE69225620T2 (de) Operationsverstärker
UA25931A1 (uk) Широкосмуговий оптичhий підсилювач
DE59208486D1 (de) Verstärker
ITMI922501A0 (it) Amplificatore ottico compatto
FI932102A0 (fi) Optisk bandkabel

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
R071 Expiry of right

Ref document number: 517503

Country of ref document: EP