DE60334059D1 - Ramanverstärker mit grosser Bandbreite - Google Patents

Ramanverstärker mit grosser Bandbreite

Info

Publication number
DE60334059D1
DE60334059D1 DE60334059T DE60334059T DE60334059D1 DE 60334059 D1 DE60334059 D1 DE 60334059D1 DE 60334059 T DE60334059 T DE 60334059T DE 60334059 T DE60334059 T DE 60334059T DE 60334059 D1 DE60334059 D1 DE 60334059D1
Authority
DE
Germany
Prior art keywords
raman amplifier
large bandwidth
bandwidth
raman
amplifier
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
DE60334059T
Other languages
English (en)
Inventor
Hiroshi Nakamoto
Takao Naito
Kenichi Torii
Toshiki Tanaka
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
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Application granted granted Critical
Publication of DE60334059D1 publication Critical patent/DE60334059D1/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
    • H04B10/2912—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
    • H04B10/2916—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 using Raman or Brillouin 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
    • H01S3/09—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
    • H01S3/094076—Pulsed or modulated 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
    • H01S3/09—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
    • H01S3/094096—Multi-wavelength 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
    • H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
    • H01S3/102—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling the active medium, e.g. by controlling the processes or apparatus for excitation
    • H01S3/1022—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling the active medium, e.g. by controlling the processes or apparatus for excitation 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
    • H01S3/30—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range using scattering effects, e.g. stimulated Brillouin or Raman effects
    • H01S3/302—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range using scattering effects, e.g. stimulated Brillouin or Raman effects in an optical fibre
    • 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
DE60334059T 2002-11-18 2003-11-18 Ramanverstärker mit grosser Bandbreite Expired - Lifetime DE60334059D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002334037A JP4184046B2 (ja) 2002-11-18 2002-11-18 ラマン増幅器

Publications (1)

Publication Number Publication Date
DE60334059D1 true DE60334059D1 (de) 2010-10-21

Family

ID=32171442

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60334059T Expired - Lifetime DE60334059D1 (de) 2002-11-18 2003-11-18 Ramanverstärker mit grosser Bandbreite

Country Status (4)

Country Link
US (1) US7379233B2 (de)
EP (1) EP1420528B1 (de)
JP (1) JP4184046B2 (de)
DE (1) DE60334059D1 (de)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6904217B2 (en) * 2003-01-29 2005-06-07 Furukawa Electric North America Method for the manufacture of optical fibers, improved optical fibers, and improved Raman fiber amplifier communication systems
JP2006084882A (ja) * 2004-09-17 2006-03-30 Fujitsu Ltd 光ノード
WO2009089298A1 (en) * 2008-01-07 2009-07-16 Xtera Communications. Inc. Optical amplifier bandwidth alteration
US20090185262A1 (en) * 2008-01-22 2009-07-23 Xiaodong Duan Optical Amplifier With Time-Multiplexed Pump Laser
JP2010177346A (ja) * 2009-01-28 2010-08-12 Nippon Telegr & Teleph Corp <Ntt> 光増幅器及び光増幅方法
JPWO2011104864A1 (ja) * 2010-02-26 2013-06-17 株式会社 ＳｍａｒｔＥｂｏｏｋ．ｃｏｍ コンテンツ配信システム、およびコンテンツ配信方法
EP2375602B1 (de) * 2010-04-03 2019-12-18 ADVA Optical Networking SE Optisches Netzwerkelement und optisches Übertragungssystem
US20120002283A1 (en) * 2010-06-30 2012-01-05 Chongjin Xie Method and apparatus for raman co-pumps
GB2486881A (en) 2010-12-22 2012-07-04 Oclaro Technology Ltd Raman Amplifiers
JP5838748B2 (ja) * 2011-11-15 2016-01-06 富士通株式会社 光伝送システム、励起光供給制御方法及び励起光供給装置
US9172467B2 (en) * 2012-04-18 2015-10-27 Infinera Corporation Raman pump circuit
JP6557956B2 (ja) * 2014-09-30 2019-08-14 富士通株式会社 光伝送装置および光伝送システム
EP3903389A4 (de) * 2018-12-28 2022-09-07 NLIGHT, Inc. Faseroptische vorrichtungen und verfahren zur reduzierung der lichtintensität der stimulierten raman-streuung (srs) in signalverbundenen systemen

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Publication number Priority date Publication date Assignee Title
FR2724077B1 (fr) * 1994-08-29 1996-09-20 Alcatel Nv Procede et ensemble pour orienter et amplifier des signaux optiques guides
JP3453301B2 (ja) 1998-04-27 2003-10-06 富士通株式会社 能動型光ファイバ及び光ファイバ増幅器
US6611368B1 (en) 2000-04-20 2003-08-26 Lucent Technologies Inc. Time-division multiplexed pump wavelengths resulting in ultra broad band, flat, backward pumped Raman gain
US6452716B1 (en) * 2000-10-05 2002-09-17 Nortel Networks Limited Amplitude modulation of a pump laser signal in a distributed raman amplifier
JP2002182253A (ja) * 2000-12-12 2002-06-26 Sumitomo Electric Ind Ltd 光源安全装置、ラマン増幅器および光伝送システム
US6373621B1 (en) * 2001-01-18 2002-04-16 Nortel Networks Limited Method and apparatus for safer operation of raman amplifiers
US6417958B1 (en) * 2001-01-24 2002-07-09 Lucent Technologies Inc. WDM optical communication system using co-propagating Raman amplification
JP4551007B2 (ja) 2001-02-06 2010-09-22 富士通株式会社 ラマン増幅器およびそれを用いた光伝送システム
US7149256B2 (en) * 2001-03-29 2006-12-12 Quellan, Inc. Multilevel pulse position modulation for efficient fiber optic communication
JP2002303895A (ja) 2001-04-03 2002-10-18 Sumitomo Electric Ind Ltd ラマン増幅方法およびそのシステム
JP4188573B2 (ja) * 2001-04-09 2008-11-26 株式会社日立製作所 光増幅器の増幅帯域拡大方法、光増幅器、及び増設ユニット
US20020167719A1 (en) * 2001-04-20 2002-11-14 Bo Pedersen Method of pump wavelength combing for enhanced power dynamic range and redundancy broad band raman optical amplifier system
US6456426B1 (en) 2001-06-28 2002-09-24 Onetta, Inc. Raman amplifiers with modulated pumps
JP4647147B2 (ja) * 2001-07-16 2011-03-09 富士通株式会社 ラマン増幅を用いた光伝送方法および光伝送システム
US20030081307A1 (en) * 2001-09-28 2003-05-01 Fludger Christopher R. Raman amplification
JP2003115799A (ja) * 2001-10-03 2003-04-18 Fujitsu Ltd 光伝送装置及び励起制御方法
US6798563B2 (en) * 2002-07-08 2004-09-28 Nortel Networks Limited Method and device for reducing pump noise transfer in raman amplification
WO2004032384A1 (en) * 2002-10-04 2004-04-15 Fujitsu Limited Raman amplification system utilizing modulated second-order raman pumping
US6813067B1 (en) * 2002-11-05 2004-11-02 At&T Corp. Method and apparatus for providing a broadband raman amplifier with improved noise performance
JP3961973B2 (ja) * 2003-03-14 2007-08-22 富士通株式会社 Ｏｔｄｒによる測定方法及び端局装置
JP4176527B2 (ja) * 2003-03-31 2008-11-05 富士通株式会社 ラマン増幅器およびそれを用いた光伝送システム
JP2004301991A (ja) * 2003-03-31 2004-10-28 Fujitsu Ltd 光増幅制御ユニットおよび光増幅制御方法
ATE304247T1 (de) * 2003-04-14 2005-09-15 Cit Alcatel Optischer raman-verstärker und verfahren zur pumpmodulation
JP4718769B2 (ja) * 2003-09-22 2011-07-06 日本電気株式会社 ラマン増幅中継器
FR2861233B1 (fr) * 2003-10-17 2006-04-21 Cit Alcatel Systeme de transmission a fibre optique a amplificateur par effat raman
JP2005141099A (ja) * 2003-11-07 2005-06-02 Nec Corp ラマン増幅中継器及びこれを用いた光伝送システム
JP2006084882A (ja) * 2004-09-17 2006-03-30 Fujitsu Ltd 光ノード

Also Published As

Publication number Publication date
EP1420528A3 (de) 2006-03-08
EP1420528B1 (de) 2010-09-08
US7379233B2 (en) 2008-05-27
JP2004170533A (ja) 2004-06-17
EP1420528A2 (de) 2004-05-19
US20050063043A1 (en) 2005-03-24
JP4184046B2 (ja) 2008-11-19

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