DE60309543D1 - Optischer Verstärker - Google Patents

Optischer Verstärker

Info

Publication number
DE60309543D1
DE60309543D1 DE60309543T DE60309543T DE60309543D1 DE 60309543 D1 DE60309543 D1 DE 60309543D1 DE 60309543 T DE60309543 T DE 60309543T DE 60309543 T DE60309543 T DE 60309543T DE 60309543 D1 DE60309543 D1 DE 60309543D1
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
DE60309543T
Other languages
English (en)
Other versions
DE60309543T2 (de
Inventor
Masato Nishihara
Yasushi Sugaya
Etsuko Hayashi
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=29728330&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE60309543(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Publication of DE60309543D1 publication Critical patent/DE60309543D1/de
Application granted granted Critical
Publication of DE60309543T2 publication Critical patent/DE60309543T2/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
    • H04B10/2933—Signal power control considering the whole optical path
    • H04B10/2935—Signal power control considering the whole optical path with a cascade of 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
    • H01S3/05—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
    • H01S3/10007—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating in optical amplifiers
    • H01S3/10013—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating in optical amplifiers by controlling the temperature of the active medium
    • 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
    • H01S2301/00—Functional characteristics
    • H01S2301/04—Gain spectral shaping, flattening
    • 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
    • H01S3/06762—Fibre amplifiers having a specific amplification band
    • H01S3/06775—S-band amplifiers, i.e. amplification in the range of about 1450 nm to 1530 nm
    • 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
    • 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
    • H01S3/10007—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating in optical amplifiers
    • H01S3/10023—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating in optical amplifiers by functional association of additional optical elements, e.g. filters, gratings, reflectors
    • 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
    • H01S3/14—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range characterised by the material used as the active medium
    • H01S3/16—Solid materials
    • H01S3/1601—Solid materials characterised by an active (lasing) ion
    • H01S3/1603—Solid materials characterised by an active (lasing) ion rare earth
    • H01S3/1608—Solid materials characterised by an active (lasing) ion rare earth erbium
    • 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
    • H01S3/14—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range characterised by the material used as the active medium
    • H01S3/16—Solid materials
    • H01S3/17—Solid materials amorphous, e.g. glass
    • H01S3/173—Solid materials amorphous, e.g. glass fluoride glass, e.g. fluorozirconate or ZBLAN [ ZrF4-BaF2-LaF3-AlF3-NaF]
    • 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
    • H01S3/14—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range characterised by the material used as the active medium
    • H01S3/16—Solid materials
    • H01S3/17—Solid materials amorphous, e.g. glass
    • H01S3/176—Solid materials amorphous, e.g. glass silica or silicate glass

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Optics & Photonics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Lasers (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
  • Optical Communication System (AREA)
DE60309543T 2002-06-24 2003-01-24 Optischer Verstärker Expired - Lifetime DE60309543T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2002182750 2002-06-24
JP2002182750A JP4094352B2 (ja) 2002-06-24 2002-06-24 光増幅器

Publications (2)

Publication Number Publication Date
DE60309543D1 true DE60309543D1 (de) 2006-12-21
DE60309543T2 DE60309543T2 (de) 2007-08-30

Family

ID=29728330

Family Applications (2)

Application Number Title Priority Date Filing Date
DE60309543T Expired - Lifetime DE60309543T2 (de) 2002-06-24 2003-01-24 Optischer Verstärker
DE60319891T Expired - Lifetime DE60319891T2 (de) 2002-06-24 2003-01-24 Optischer Verstärker

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE60319891T Expired - Lifetime DE60319891T2 (de) 2002-06-24 2003-01-24 Optischer Verstärker

Country Status (4)

Country Link
US (1) US8064130B2 (de)
EP (2) EP1720271B1 (de)
JP (1) JP4094352B2 (de)
DE (2) DE60309543T2 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5246725B2 (ja) * 2005-03-02 2013-07-24 住友電気工業株式会社 光増幅器
JP2009076493A (ja) * 2007-09-18 2009-04-09 Sumitomo Electric Ind Ltd 増幅用光ファイバ
JP5884654B2 (ja) * 2012-06-12 2016-03-15 富士通株式会社 光増幅器及び光増幅器制御方法
PT2947728T (pt) * 2014-05-23 2018-05-02 Padtec S A Amplificador óptico, sistema de comunicação óptica wdm e método para amplificar opticamente um sinal óptico wdm
US10523334B1 (en) * 2018-12-07 2019-12-31 Fujitsu Limited Controlling gain modulation in optical communication networks
CN112993738A (zh) * 2021-04-21 2021-06-18 武汉光迅科技股份有限公司 一种S-band光放大器及其实现方法
CN115361066B (zh) * 2022-08-16 2023-09-26 北京邮电大学 一种s波段信号的增益均衡方法及系统

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0411794A (ja) 1990-04-28 1992-01-16 Furukawa Electric Co Ltd:The ファイバ型光増幅器
US5337382A (en) * 1992-05-29 1994-08-09 At&T Bell Laboratories Article comprising an optical waveguide with in-line refractive index grating
JP3422398B2 (ja) * 1995-12-07 2003-06-30 富士通株式会社 重心波長モニタ方法及び装置、光増幅器並びに光通信システム
EP1433761B1 (de) * 1997-02-14 2006-08-02 Nippon Telegraph and Telephone Corporation Optischer Verstärker
US5920424A (en) * 1997-02-18 1999-07-06 Lucent Technologies Inc. Article comprising a broadband optical fiber amplifier
JP3597045B2 (ja) 1997-06-02 2004-12-02 ルーセント テクノロジーズ インコーポレーテッド 広帯域光増幅器およびこれを含む装置および光信号を増幅する方法
US6049417A (en) * 1997-06-02 2000-04-11 Lucent Technologies Inc. Wide band optical amplifier
JP3452768B2 (ja) * 1997-08-11 2003-09-29 富士通株式会社 光増幅のための方法及び装置並びに該装置を有するシステム
CA2320872A1 (en) * 1998-02-20 1999-08-26 Paul N. Freeman Upgradable, gain flattened fiber amplifiers for wdm applications
US6600592B2 (en) * 1998-03-24 2003-07-29 Xtera Communications, Inc. S+ band nonlinear polarization amplifiers
JP3688131B2 (ja) 1998-09-10 2005-08-24 日本電信電話株式会社 光増幅素子
JP2000277842A (ja) * 1999-03-23 2000-10-06 Oki Electric Ind Co Ltd 光学部品、光増幅器及び光増幅器の特性制御方法
US6344425B1 (en) * 1999-11-19 2002-02-05 Corning Incorporated Fluorotellurite, amplifier glasses
DE60138935D1 (de) * 2000-02-23 2009-07-23 Fujitsu Ltd Optischer Verstärker
JP2001313433A (ja) 2000-02-23 2001-11-09 Fujitsu Ltd 光増幅器及び光増幅方法
JP2001252165A (ja) 2000-03-09 2001-09-18 Yamato Kogyo Kk 竹製酒容器
US6519081B2 (en) * 2000-04-13 2003-02-11 Corning Incorporated Method of operating a noise-compensating gain controller for an optical amplifier
EP1209779A1 (de) * 2000-11-27 2002-05-29 Alcatel Optischer Faserverstärker mit Heizsystem zur Regelung der Temperatur der verstärkenden Faser und entsprechende Methode
JP2002171016A (ja) * 2000-11-30 2002-06-14 Sumitomo Electric Ind Ltd 光フィルタ、光増幅システムおよび光通信システム
US6529316B1 (en) * 2001-05-03 2003-03-04 Onetta, Inc. Optical network equipment with optical channel monitor and dynamic spectral filter alarms
US6690506B2 (en) * 2001-05-17 2004-02-10 Corning Incorporated Control architecture and method for optical amplifiers
US6621621B1 (en) * 2001-06-07 2003-09-16 Innovance, Inc. Line amplification system for wavelength switched optical networks
ATE247077T1 (de) * 2001-06-21 2003-08-15 Cit Alcatel Optische vorrichtung mit mehrkomponentenoxidglas
JP2003069116A (ja) * 2001-08-22 2003-03-07 Fujitsu Ltd 光増幅器及び利得偏差補償方法

Also Published As

Publication number Publication date
US20030234976A1 (en) 2003-12-25
EP1720271B1 (de) 2008-03-19
EP1385279A2 (de) 2004-01-28
US8064130B2 (en) 2011-11-22
DE60319891T2 (de) 2009-03-05
JP2004031480A (ja) 2004-01-29
JP4094352B2 (ja) 2008-06-04
DE60309543T2 (de) 2007-08-30
EP1720271A1 (de) 2006-11-08
EP1385279A3 (de) 2005-06-15
DE60319891D1 (de) 2008-04-30
EP1385279B1 (de) 2006-11-08

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Legal Events

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8363 Opposition against the patent