SE9700533L - Optisk förstärkare med variabel förstärkning - Google Patents

Optisk förstärkare med variabel förstärkning

Info

Publication number
SE9700533L
SE9700533L SE9700533A SE9700533A SE9700533L SE 9700533 L SE9700533 L SE 9700533L SE 9700533 A SE9700533 A SE 9700533A SE 9700533 A SE9700533 A SE 9700533A SE 9700533 L SE9700533 L SE 9700533L
Authority
SE
Sweden
Prior art keywords
amplifier
power
gain
preamplifier
power amplifier
Prior art date
Application number
SE9700533A
Other languages
English (en)
Other versions
SE9700533D0 (sv
SE509968C2 (sv
Inventor
Dag Bonnedal
Johan Sandell
Magnus Sundelin
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Priority to SE9700533A priority Critical patent/SE509968C2/sv
Publication of SE9700533D0 publication Critical patent/SE9700533D0/sv
Priority to PCT/SE1998/000255 priority patent/WO1998036513A1/en
Priority to AU62346/98A priority patent/AU737550B2/en
Priority to EP98904494A priority patent/EP0960491B1/en
Priority to JP53566598A priority patent/JP3992749B2/ja
Priority to CA002280962A priority patent/CA2280962A1/en
Priority to TW087102048A priority patent/TW366632B/zh
Priority to DE69830145T priority patent/DE69830145T2/de
Priority to KR1019997007080A priority patent/KR100343346B1/ko
Priority to AT98904494T priority patent/ATE295641T1/de
Priority to BR9807355-9A priority patent/BR9807355A/pt
Priority to CNB988025205A priority patent/CN1135751C/zh
Priority to MYPI98000633A priority patent/MY119518A/en
Publication of SE9700533L publication Critical patent/SE9700533L/sv
Publication of SE509968C2 publication Critical patent/SE509968C2/sv
Priority to US09/368,468 priority patent/US6421169B1/en

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
    • 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
    • H01S3/06758—Tandem 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
    • H01S3/1301—Stabilisation of laser output parameters, e.g. frequency or amplitude in optical amplifiers
    • 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
    • H04B10/25—Arrangements specific to fibre transmission
    • H04B10/2581—Multimode transmission
    • 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
    • H04B10/2941—Signal power control in a multiwavelength system, e.g. gain equalisation using an equalising unit, e.g. a filter
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2210/00—Indexing scheme relating to optical transmission systems
    • H04B2210/003—Devices including multiple stages, e.g., multi-stage optical amplifiers or dispersion compensators

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Plasma & Fusion (AREA)
  • Optics & Photonics (AREA)
  • Lasers (AREA)
  • Optical Communication System (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Control Of Amplification And Gain Control (AREA)
SE9700533A 1997-02-14 1997-02-14 Optisk förstärkare med variabel förstärkning SE509968C2 (sv)

Priority Applications (14)

Application Number Priority Date Filing Date Title
SE9700533A SE509968C2 (sv) 1997-02-14 1997-02-14 Optisk förstärkare med variabel förstärkning
CNB988025205A CN1135751C (zh) 1997-02-14 1998-02-13 光学放大器和放大光信号的方法
TW087102048A TW366632B (en) 1997-02-14 1998-02-13 Optical fiber amplifier having variable gain
KR1019997007080A KR100343346B1 (ko) 1997-02-14 1998-02-13 가변 이득을 가지는 광섬유 증폭기
EP98904494A EP0960491B1 (en) 1997-02-14 1998-02-13 Optical fiber amplifier having variable gain
JP53566598A JP3992749B2 (ja) 1997-02-14 1998-02-13 可変な利得を有する光ファイバ増幅器
CA002280962A CA2280962A1 (en) 1997-02-14 1998-02-13 Optical fiber amplifier having variable gain
PCT/SE1998/000255 WO1998036513A1 (en) 1997-02-14 1998-02-13 Optical fiber amplifier having variable gain
DE69830145T DE69830145T2 (de) 1997-02-14 1998-02-13 Faseroptischer verstärker mit variabler verstärkung
AU62346/98A AU737550B2 (en) 1997-02-14 1998-02-13 Optical fiber amplifier having variable gain
AT98904494T ATE295641T1 (de) 1997-02-14 1998-02-13 Faseroptischer verstärker mit variabler verstärkung
BR9807355-9A BR9807355A (pt) 1997-02-14 1998-02-13 Dispositivo amplificador óptico, rede de fibra óptica, e, processo para amplificar sinais luminosos viajando em um enlace de transmissão óptico
MYPI98000633A MY119518A (en) 1997-02-14 1998-02-14 Optical fiber amplifier having variable gain
US09/368,468 US6421169B1 (en) 1997-02-14 1999-08-02 Optical fiber amplifier having variable gain

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9700533A SE509968C2 (sv) 1997-02-14 1997-02-14 Optisk förstärkare med variabel förstärkning

Publications (3)

Publication Number Publication Date
SE9700533D0 SE9700533D0 (sv) 1997-02-14
SE9700533L true SE9700533L (sv) 1998-09-01
SE509968C2 SE509968C2 (sv) 1999-03-29

Family

ID=20405805

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9700533A SE509968C2 (sv) 1997-02-14 1997-02-14 Optisk förstärkare med variabel förstärkning

Country Status (14)

Country Link
US (1) US6421169B1 (sv)
EP (1) EP0960491B1 (sv)
JP (1) JP3992749B2 (sv)
KR (1) KR100343346B1 (sv)
CN (1) CN1135751C (sv)
AT (1) ATE295641T1 (sv)
AU (1) AU737550B2 (sv)
BR (1) BR9807355A (sv)
CA (1) CA2280962A1 (sv)
DE (1) DE69830145T2 (sv)
MY (1) MY119518A (sv)
SE (1) SE509968C2 (sv)
TW (1) TW366632B (sv)
WO (1) WO1998036513A1 (sv)

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US6603596B2 (en) * 1998-03-19 2003-08-05 Fujitsu Limited Gain and signal level adjustments of cascaded optical amplifiers
US6049413A (en) * 1998-05-22 2000-04-11 Ciena Corporation Optical amplifier having first and second stages and an attenuator controlled based on the gains of the first and second stages
DE69801663T2 (de) * 1998-10-13 2002-06-20 Lucent Technologies Inc., Murray Hill Verfahren und Vorrichtung zur optischen Leistungsregelung eines optischen Übertragungssignals
FR2787953A1 (fr) * 1998-12-28 2000-06-30 Cit Alcatel Amplification quasi-distribuee dans un systeme de transmission a fibre optique
FR2787954A1 (fr) * 1998-12-28 2000-06-30 Cit Alcatel Amplification quasi-distribuee dans un systeme de transmission a fibre optique
JP3844902B2 (ja) * 1999-03-02 2006-11-15 富士通株式会社 波長多重用光増幅器及び光通信システム
US6583923B1 (en) 1999-12-07 2003-06-24 Siemens Aktiengesellschaft Optical fiber amplifier
AUPQ574200A0 (en) * 2000-02-21 2000-03-16 Commonwealth Scientific And Industrial Research Organisation Starch branching enzyme
US6563628B2 (en) * 2000-02-25 2003-05-13 Fujikura Ltd. Gain tilt free optical fiber amplifier in a wide dynamic gain range
US6661946B2 (en) * 2001-07-09 2003-12-09 Lucent Technologies Inc. Method of controlling optical signal power at an add/drop node in a WDM optical communication system
US7460296B2 (en) * 2002-04-30 2008-12-02 Pivotal Decisions Llc Compensation for spectral power tilt from scattering
US6977770B2 (en) * 2002-06-14 2005-12-20 Fujitsu Limited Optical amplifier and control method therefor
EP1420491A3 (en) * 2002-11-18 2005-04-27 Fujitsu Limited Optical amplifier and optical amplifier control method
JP4359035B2 (ja) * 2002-11-21 2009-11-04 富士通株式会社 光中継器
KR100526560B1 (ko) * 2002-12-07 2005-11-03 삼성전자주식회사 자동파워조절 기능을 갖는 광섬유 증폭기 및 그 자동 파워조절 방법
US7361171B2 (en) 2003-05-20 2008-04-22 Raydiance, Inc. Man-portable optical ablation system
US8173929B1 (en) 2003-08-11 2012-05-08 Raydiance, Inc. Methods and systems for trimming circuits
US7367969B2 (en) * 2003-08-11 2008-05-06 Raydiance, Inc. Ablative material removal with a preset removal rate or volume or depth
US20050065502A1 (en) * 2003-08-11 2005-03-24 Richard Stoltz Enabling or blocking the emission of an ablation beam based on color of target
US8921733B2 (en) 2003-08-11 2014-12-30 Raydiance, Inc. Methods and systems for trimming circuits
US9022037B2 (en) 2003-08-11 2015-05-05 Raydiance, Inc. Laser ablation method and apparatus having a feedback loop and control unit
US20050038487A1 (en) * 2003-08-11 2005-02-17 Richard Stoltz Controlling pulse energy of an optical amplifier by controlling pump diode current
US7143769B2 (en) * 2003-08-11 2006-12-05 Richard Stoltz Controlling pulse energy of an optical amplifier by controlling pump diode current
US20050068612A1 (en) * 2003-09-30 2005-03-31 Gordon Wilson Pre-programmable optical filtering / amplifying method and apparatus
US7247796B2 (en) * 2003-10-28 2007-07-24 3M Innovative Properties Company Filling materials
US20050111077A1 (en) * 2003-11-24 2005-05-26 Ching-Wen Hsiao Gain controller with selectable wavelength feedback
JP4451696B2 (ja) * 2004-03-30 2010-04-14 富士通株式会社 微細構造ファイバの非線形係数の波長依存性をキャンセルする装置
US7349452B2 (en) 2004-12-13 2008-03-25 Raydiance, Inc. Bragg fibers in systems for the generation of high peak power light
US8135050B1 (en) 2005-07-19 2012-03-13 Raydiance, Inc. Automated polarization correction
EP1753102B1 (en) * 2005-08-08 2009-10-07 The Regents of The University of Colorado, A Body Corporate Method for optimizing output in ultrashort-pulse multipass laser amplifiers with selective use of a spectral filter
JP4717602B2 (ja) * 2005-11-16 2011-07-06 富士通株式会社 光増幅器
US8189971B1 (en) 2006-01-23 2012-05-29 Raydiance, Inc. Dispersion compensation in a chirped pulse amplification system
US7444049B1 (en) 2006-01-23 2008-10-28 Raydiance, Inc. Pulse stretcher and compressor including a multi-pass Bragg grating
US8232687B2 (en) 2006-04-26 2012-07-31 Raydiance, Inc. Intelligent laser interlock system
US9130344B2 (en) 2006-01-23 2015-09-08 Raydiance, Inc. Automated laser tuning
US7822347B1 (en) 2006-03-28 2010-10-26 Raydiance, Inc. Active tuning of temporal dispersion in an ultrashort pulse laser system
US7715092B2 (en) * 2006-10-03 2010-05-11 Jds Uniphase Corporation Dynamic raman tilt compensation
JP5239223B2 (ja) 2007-06-21 2013-07-17 富士通株式会社 光増幅器
US7903326B2 (en) 2007-11-30 2011-03-08 Radiance, Inc. Static phase mask for high-order spectral phase control in a hybrid chirped pulse amplifier system
US7911684B1 (en) * 2008-03-07 2011-03-22 Oplink Communications, Inc. Variable gain erbium doped fiber amplifier
ATE509439T1 (de) * 2008-03-13 2011-05-15 Nokia Siemens Networks Oy Verfahren zur steuerung eines edfa-verstärkers (erbium doped fibre amplifier) und verstärkeranordnung
US8125704B2 (en) 2008-08-18 2012-02-28 Raydiance, Inc. Systems and methods for controlling a pulsed laser by combining laser signals
KR20140018183A (ko) 2010-09-16 2014-02-12 레이디안스, 아이엔씨. 적층 재료의 레이저 기반 처리
US9059799B2 (en) * 2011-04-21 2015-06-16 Futurewei Technologies, Inc. Apparatus and method to calculate a noise figure of an optical amplifier for wavelength channels in a partial-fill scenario to account for channel loading
CN111416665B (zh) * 2019-01-07 2022-04-15 中国移动通信有限公司研究院 一种光纤通信方法、装置、设备及存储介质
CN112310791B (zh) * 2020-10-23 2021-10-12 武汉光迅电子技术有限公司 一种增益调节方法和光纤放大器
CN114499673B (zh) * 2020-11-12 2024-07-26 莫列斯有限公司 光放大器模块及其增益控制方法

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JPH05241209A (ja) * 1992-03-02 1993-09-21 Fujitsu Ltd 光増幅器制御システム
DE4208857A1 (de) * 1992-03-19 1993-09-23 Sel Alcatel Ag Optisches nachrichtenuebertragungssystem mit faseroptischen verstaerkern und regelung der sender-wellenlaenge
GB9305977D0 (en) * 1993-03-23 1993-05-12 Northern Telecom Ltd Transmission system incorporating optical amplifiers
GB2280561B (en) * 1993-07-31 1997-03-26 Northern Telecom Ltd Optical transmission system
JPH07212315A (ja) * 1994-01-18 1995-08-11 Fujitsu Ltd 光増幅器
JPH08248455A (ja) * 1995-03-09 1996-09-27 Fujitsu Ltd 波長多重用光増幅器
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JP3730299B2 (ja) * 1996-02-07 2005-12-21 富士通株式会社 光等化増幅器および光等化増幅方法
GB2314714B (en) * 1996-06-26 2000-04-05 Northern Telecom Ltd Optical amplifier modules
US5900969A (en) * 1997-02-14 1999-05-04 Lucent Technologies Inc. Broadband flat gain optical amplifier

Also Published As

Publication number Publication date
JP2001511975A (ja) 2001-08-14
CA2280962A1 (en) 1998-08-20
BR9807355A (pt) 2000-04-18
CN1247655A (zh) 2000-03-15
MY119518A (en) 2005-06-30
ATE295641T1 (de) 2005-05-15
CN1135751C (zh) 2004-01-21
SE9700533D0 (sv) 1997-02-14
KR20000070817A (ko) 2000-11-25
SE509968C2 (sv) 1999-03-29
WO1998036513A1 (en) 1998-08-20
EP0960491A1 (en) 1999-12-01
KR100343346B1 (ko) 2002-07-24
EP0960491B1 (en) 2005-05-11
DE69830145D1 (de) 2005-06-16
US6421169B1 (en) 2002-07-16
AU6234698A (en) 1998-09-08
JP3992749B2 (ja) 2007-10-17
AU737550B2 (en) 2001-08-23
TW366632B (en) 1999-08-11
DE69830145T2 (de) 2006-03-02

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