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DE60300563D1 - Optischer Verstärker und zugehöriges Ansteuerungsverfahren - Google Patents

Optischer Verstärker und zugehöriges Ansteuerungsverfahren

Info

Publication number
DE60300563D1
DE60300563D1 DE60300563T DE60300563T DE60300563D1 DE 60300563 D1 DE60300563 D1 DE 60300563D1 DE 60300563 T DE60300563 T DE 60300563T DE 60300563 T DE60300563 T DE 60300563T DE 60300563 D1 DE60300563 D1 DE 60300563D1
Authority
DE
Germany
Prior art keywords
driving method
optical amplifier
associated driving
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.)
Revoked
Application number
DE60300563T
Other languages
English (en)
Other versions
DE60300563T2 (de
Inventor
Kosuke Komaki
Hiroyuki Itou
Hiroshi Iizuka
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=29717437&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE60300563(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
Application granted granted Critical
Publication of DE60300563D1 publication Critical patent/DE60300563D1/de
Publication of DE60300563T2 publication Critical patent/DE60300563T2/de
Anticipated expiration legal-status Critical
Revoked 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
    • H01S3/05—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
    • 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
    • H04B10/2912—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
    • 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
    • H01S3/10015—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating in optical amplifiers by monitoring or controlling, e.g. attenuating, the input signal
    • 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
    • H01S3/10069—Memorized or pre-programmed characteristics, e.g. look-up table [LUT]
    • 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)
  • Plasma & Fusion (AREA)
  • Optics & Photonics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Lasers (AREA)
  • Optical Communication System (AREA)
DE60300563T 2002-06-14 2003-06-12 Optischer Verstärker und zugehöriges Ansteuerungsverfahren Revoked DE60300563T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2002173620 2002-06-14
JP2002173620 2002-06-14

Publications (2)

Publication Number Publication Date
DE60300563D1 true DE60300563D1 (de) 2005-06-02
DE60300563T2 DE60300563T2 (de) 2006-01-19

Family

ID=29717437

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60300563T Revoked DE60300563T2 (de) 2002-06-14 2003-06-12 Optischer Verstärker und zugehöriges Ansteuerungsverfahren

Country Status (3)

Country Link
US (1) US6977770B2 (de)
EP (1) EP1376904B1 (de)
DE (1) DE60300563T2 (de)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100567317B1 (ko) * 2002-05-07 2006-04-04 한국전자통신연구원 이득 제어를 위한 광섬유 증폭 방법 및 그 장치
US6977770B2 (en) * 2002-06-14 2005-12-20 Fujitsu Limited Optical amplifier and control method therefor
US7202997B2 (en) * 2002-11-18 2007-04-10 Fujitsu Limited Optical amplifier and optical amplifier control method
US7400443B1 (en) * 2002-11-20 2008-07-15 Ciena Corporation Method and apparatus for optical amplifying device gain control with gain threshold
US7068423B2 (en) * 2002-11-26 2006-06-27 Dowslake Microsystems Corporation Low cost flexible automated optical power management
US7466478B2 (en) * 2002-12-19 2008-12-16 Fujitsu Limited Optical-level control method, optical-level control apparatus and wavelength-multiplexing optical network
WO2004070898A1 (ja) * 2003-02-03 2004-08-19 Fujitsu Limited 光増幅器
US20040197105A1 (en) * 2003-02-14 2004-10-07 Jds Uniphase Corporation Variable gain multi-stage optical amplifier
US7483205B1 (en) * 2003-05-29 2009-01-27 Ciena Corporation Transient optical power suppressing apparatus, method, and network
JP4746951B2 (ja) * 2005-09-28 2011-08-10 富士通株式会社 光増幅器および光増幅方法
DE102005060019A1 (de) * 2005-12-15 2007-06-21 Siemens Ag Regelbarer optischer Verstärker und Verfahren zur Regelung eines optischen Verstärkers
JP5239141B2 (ja) * 2006-09-26 2013-07-17 富士通株式会社 光増幅装置およびその制御方法
JP4580404B2 (ja) * 2007-03-29 2010-11-10 富士通株式会社 光増幅器
JP5239223B2 (ja) 2007-06-21 2013-07-17 富士通株式会社 光増幅器
US8908264B2 (en) * 2010-08-31 2014-12-09 Jds Uniphase Corporation Reducing transients in an optical amplifier
JP5617510B2 (ja) * 2010-10-07 2014-11-05 富士通株式会社 光ノード及び光通信方法
JP6070101B2 (ja) * 2012-11-19 2017-02-01 富士通株式会社 光増幅装置及び伝送システム

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5889609A (en) 1992-07-31 1999-03-30 Fujitsu Limited Optical attenuator
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
JPH08248455A (ja) 1995-03-09 1996-09-27 Fujitsu Ltd 波長多重用光増幅器
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
US6369938B1 (en) * 1996-05-28 2002-04-09 Fujitsu Limited Multi-wavelength light amplifier
SE509968C2 (sv) * 1997-02-14 1999-03-29 Ericsson Telefon Ab L M Optisk förstärkare med variabel förstärkning
KR100243003B1 (ko) 1997-02-26 2000-03-02 김영환 플랫셀 어레이의 온/오프전류비 개선회로
US6603596B2 (en) 1998-03-19 2003-08-05 Fujitsu Limited Gain and signal level adjustments of cascaded optical amplifiers
US6061171A (en) * 1998-05-22 2000-05-09 Ciena Corporation Optical amplifier having a variable attenuator controlled based on input power
CA2313034A1 (en) * 1998-10-04 2000-04-13 The Furukawa Electric Co., Ltd. Optical amplifier
US7170673B2 (en) * 1999-07-30 2007-01-30 Mitsubishi Denki Kabushiki Kaisha Optical amplifying repeater apparatus and optical amplifying/repeating transmission system
JP4498509B2 (ja) * 1999-11-16 2010-07-07 富士通株式会社 波長多重用光アンプの制御装置および制御方法
US20020044343A1 (en) * 2000-07-17 2002-04-18 Tariq Manzur Control system for optical amplifiers and optical fiber devices
US6943937B2 (en) * 2001-05-17 2005-09-13 Avanex Corporation Optical amplifier performance controller and method of use
US20030035203A1 (en) * 2001-08-09 2003-02-20 Redc Optical Networks Ltd. Method and apparatus for dynamic optical gain tilting in L-band
US6690508B2 (en) * 2002-03-26 2004-02-10 Fujitsu Network Communications, Inc. Control system and method for an optical amplifier
US6977770B2 (en) * 2002-06-14 2005-12-20 Fujitsu Limited Optical amplifier and control method therefor
FR2843505B1 (fr) * 2002-08-09 2006-06-02 Cit Alcatel Dispositif d'amplification optique pour reseau optique a controle de gain automatique
US7202997B2 (en) * 2002-11-18 2007-04-10 Fujitsu Limited Optical amplifier and optical amplifier control method

Also Published As

Publication number Publication date
DE60300563T2 (de) 2006-01-19
EP1376904B1 (de) 2005-04-27
US20030231379A1 (en) 2003-12-18
EP1376904A1 (de) 2004-01-02
US6977770B2 (en) 2005-12-20

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8331 Complete revocation