IT1298254B1 - Amplificatore a fibra ottica e sistema di comunicazione ottico utilizzante lo stesso - Google Patents

Amplificatore a fibra ottica e sistema di comunicazione ottico utilizzante lo stesso

Info

Publication number
IT1298254B1
IT1298254B1 IT98MI000288A ITMI980288A IT1298254B1 IT 1298254 B1 IT1298254 B1 IT 1298254B1 IT 98MI000288 A IT98MI000288 A IT 98MI000288A IT MI980288 A ITMI980288 A IT MI980288A IT 1298254 B1 IT1298254 B1 IT 1298254B1
Authority
IT
Italy
Prior art keywords
same
communication system
fiber optic
optical communication
optic amplifier
Prior art date
Application number
IT98MI000288A
Other languages
English (en)
Inventor
Atsushi Toyohara
Original Assignee
Nec 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 Nec Corp filed Critical Nec Corp
Publication of ITMI980288A1 publication Critical patent/ITMI980288A1/it
Application granted granted Critical
Publication of IT1298254B1 publication Critical patent/IT1298254B1/it

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
    • 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
    • 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
    • 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
    • H04B10/2942—Signal power control in a multiwavelength system, e.g. gain equalisation using automatic gain control [AGC]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0221—Power control, e.g. to keep the total optical power constant
    • 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

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Optical Communication System (AREA)
  • Lasers (AREA)
IT98MI000288A 1997-02-17 1998-02-16 Amplificatore a fibra ottica e sistema di comunicazione ottico utilizzante lo stesso IT1298254B1 (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9031955A JPH10229386A (ja) 1997-02-17 1997-02-17 光ファイバアンプとこれを用いた光通信システム

Publications (2)

Publication Number Publication Date
ITMI980288A1 ITMI980288A1 (it) 1999-08-16
IT1298254B1 true IT1298254B1 (it) 1999-12-20

Family

ID=12345389

Family Applications (1)

Application Number Title Priority Date Filing Date
IT98MI000288A IT1298254B1 (it) 1997-02-17 1998-02-16 Amplificatore a fibra ottica e sistema di comunicazione ottico utilizzante lo stesso

Country Status (4)

Country Link
US (1) US6072601A (it)
JP (1) JPH10229386A (it)
FR (1) FR2759831A1 (it)
IT (1) IT1298254B1 (it)

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JP3102397B2 (ja) 1997-12-10 2000-10-23 日本電気株式会社 光波長多重伝送システム
JP3166695B2 (ja) 1998-01-05 2001-05-14 日本電気株式会社 波長分割多重送信装置
US6693737B2 (en) 1998-03-24 2004-02-17 Xtera Communications, Inc. Dispersion compensating nonlinear polarization amplifiers
US6600592B2 (en) 1998-03-24 2003-07-29 Xtera Communications, Inc. S+ band nonlinear polarization amplifiers
US6760148B2 (en) 1998-03-24 2004-07-06 Xtera Communications, Inc. Nonlinear polarization amplifiers in nonzero dispersion shifted fiber
US6574037B2 (en) 1998-06-16 2003-06-03 Xtera Communications, Inc. All band amplifier
DE19838788A1 (de) 1998-08-26 2000-03-09 Siemens Ag Geregelter optischer Verstärker
JP3802992B2 (ja) * 1999-02-08 2006-08-02 富士通株式会社 波長多重光通信システム
JP2000269578A (ja) * 1999-03-18 2000-09-29 Fujitsu Ltd 光増幅のための方法、装置及びシステム
CA2375539A1 (en) 1999-07-09 2001-01-18 Sumitomo Electric Industries, Ltd. Optical amplifier and optical amplification method
JP3779502B2 (ja) * 1999-08-12 2006-05-31 富士通株式会社 光増幅装置、光送信装置、光伝送システム、光増幅方法および光入射方法
JP3338007B2 (ja) 1999-09-10 2002-10-28 古河電気工業株式会社 光増幅器及び波長多重光通信システム
KR100346221B1 (ko) * 2000-09-06 2002-08-01 삼성전자 주식회사 어븀첨가 광섬유 증폭기의 이득 제어 장치 및 방법
US6498677B1 (en) * 2000-10-23 2002-12-24 Onetta, Inc. Optical amplifier systems with transient control
KR100358115B1 (ko) * 2000-12-14 2002-10-25 한국전자통신연구원 자동 이득 제어된 광섬유 증폭 장치
US6532101B2 (en) * 2001-03-16 2003-03-11 Xtera Communications, Inc. System and method for wide band Raman amplification
US6810214B2 (en) 2001-03-16 2004-10-26 Xtera Communications, Inc. Method and system for reducing degradation of optical signal to noise ratio
US6614589B2 (en) * 2001-05-09 2003-09-02 Ciena Corporation Method and system for controlling amplifier power in an optical communications network
US7242863B2 (en) * 2001-05-09 2007-07-10 Ciena Corporation Method and system for coordinating and utilizing channel power information in an optical communications network
US6559985B1 (en) * 2001-05-09 2003-05-06 Ciena Corporation Method and system for determining channel power in an optical communications network
US6600596B2 (en) * 2001-05-09 2003-07-29 Ciena Corporation Method and system for controlling amplifier power in an optical communications network having add/drop capability
WO2002091027A2 (en) * 2001-05-09 2002-11-14 Ciena Corporation Method and system for controlling amplifier power in an optical communications network having add/drop capability
WO2002091646A1 (en) * 2001-05-09 2002-11-14 Ciena Corporation Method and system for coordinating and utilizing channel power information in an optical communications network
US6587259B2 (en) 2001-07-27 2003-07-01 Xtera Communications, Inc. System and method for controlling noise figure
IL145262A0 (en) * 2001-09-04 2002-06-30 Lightscape Networks Ltd Method and system for channel count and power control in optical networks
US6594071B1 (en) 2001-10-02 2003-07-15 Xtera Communications, Inc. Method and apparatus for amplifier control
US6819479B1 (en) 2001-12-20 2004-11-16 Xtera Communications, Inc. Optical amplification using launched signal powers selected as a function of a noise figure
US7197245B1 (en) 2002-03-15 2007-03-27 Xtera Communications, Inc. System and method for managing system margin
US7068938B1 (en) 2002-03-15 2006-06-27 Xtera Communications, Inc. Band optical add/drop multiplexing
US6778321B1 (en) 2002-03-15 2004-08-17 Xtera Communications, Inc. Fiber optic transmission system for a metropolitan area network
US6819478B1 (en) 2002-03-15 2004-11-16 Xtera Communications, Inc. Fiber optic transmission system with low cost transmitter compensation
US7061668B2 (en) 2002-03-21 2006-06-13 Siemens Communications Inc. Fast optical amplifier control circuit
IL153941A (en) * 2003-01-14 2008-06-05 Eci Telecom Ltd Technique for power control in optical networks
IL157985A (en) * 2003-09-18 2008-04-13 Eci Telecom Ltd Method and device of analyzing a signal transmitted via a communication link
US7254337B1 (en) 2006-05-16 2007-08-07 Xtera Communications, Inc. Band optical add/drop multiplexing
US8649899B2 (en) * 2006-06-19 2014-02-11 Amazon Technologies, Inc. System and method for maneuvering a mobile drive unit
US8995053B2 (en) * 2006-12-28 2015-03-31 Alcatel Lucent Positive optical amplifier power transient suppression
JP5135849B2 (ja) * 2007-03-30 2013-02-06 富士通株式会社 利得制御装置，光伝送装置および光増幅器の利得制御方法
JP4693864B2 (ja) * 2008-05-08 2011-06-01 三菱電機株式会社 波長多重光装置及び波長多重光通信システム
US8294981B2 (en) * 2009-09-15 2012-10-23 Oclaro Technology Limited Optical amplifiers using switched filter devices
CN102687428B (zh) * 2009-10-16 2016-01-20 日本电气株式会社 光分路单元、光通信***和光复用方法
EP2587701B1 (en) * 2010-06-24 2018-10-24 Mitsubishi Electric Corporation Wavelength-division multiplexing transmission device
JP5614252B2 (ja) * 2010-11-12 2014-10-29 富士通株式会社 光切替装置および通信システム
CN102624452B (zh) * 2011-02-01 2017-06-13 樱桃树管理顾问有限公司 光信号与光能传输的中继方法、装置与***
JP6561445B2 (ja) * 2014-09-30 2019-08-21 富士通株式会社 光増幅装置、光伝送装置、及び、光伝送システム
US11290190B2 (en) * 2017-11-30 2022-03-29 Adva Optical Networking Se Method and apparatus for automatic signal gain setting

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JPS6212222A (ja) * 1985-07-10 1987-01-21 Matsushita Electric Ind Co Ltd 波長多重光伝送装置
US4884867A (en) * 1988-05-31 1989-12-05 Grumman Aerospace Corporation Cascaded optical notching system
US5225922A (en) * 1991-11-21 1993-07-06 At&T Bell Laboratories Optical transmission system equalizer
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JPH06258546A (ja) * 1993-03-09 1994-09-16 Hitachi Ltd 光分配素子、光分配回路及び分配回路構成方法
JPH0832554A (ja) * 1994-07-13 1996-02-02 Nippon Telegr & Teleph Corp <Ntt> 多チャネル光ｗｄｍ受信器
JP3379052B2 (ja) * 1994-09-26 2003-02-17 富士通株式会社 波長多重光増幅装置及び光波長多重伝送システム及び光波長多重伝送方法
JPH08264871A (ja) * 1995-03-20 1996-10-11 Fujitsu Ltd 多波長一括光増幅装置
JPH0964819A (ja) * 1995-08-23 1997-03-07 Fujitsu Ltd 光システム
JP2904114B2 (ja) * 1996-04-23 1999-06-14 日本電気株式会社 光増幅装置とこれを用いた波長多重光伝送装置
JP3006500B2 (ja) * 1996-08-01 2000-02-07 日本電気株式会社 波長多重光伝送用光増幅装置
US5943150A (en) * 1996-09-30 1999-08-24 Regents Of The University Of California Massively parallel processor networks with optical express channels
JP3860278B2 (ja) * 1997-03-13 2006-12-20 富士通株式会社 遠隔励起方式の波長多重光伝送システム

Also Published As

Publication number Publication date
JPH10229386A (ja) 1998-08-25
ITMI980288A1 (it) 1999-08-16
US6072601A (en) 2000-06-06
FR2759831A1 (fr) 1998-08-21

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