IT1295276B1 - Contatore di canale di segnale ottico e dispositivo di amplificazione ottica utilizzante lo stesso - Google Patents

Contatore di canale di segnale ottico e dispositivo di amplificazione ottica utilizzante lo stesso

Info

Publication number
IT1295276B1
IT1295276B1 IT97MI002259A ITMI972259A IT1295276B1 IT 1295276 B1 IT1295276 B1 IT 1295276B1 IT 97MI002259 A IT97MI002259 A IT 97MI002259A IT MI972259 A ITMI972259 A IT MI972259A IT 1295276 B1 IT1295276 B1 IT 1295276B1
Authority
IT
Italy
Prior art keywords
same
optical
signal channel
amplification device
channel counter
Prior art date
Application number
IT97MI002259A
Other languages
English (en)
Inventor
Hideki Okuno
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 ITMI972259A1 publication Critical patent/ITMI972259A1/it
Application granted granted Critical
Publication of IT1295276B1 publication Critical patent/IT1295276B1/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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J11/00—Measuring the characteristics of individual optical pulses or of optical pulse trains
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Optical Communication System (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Lasers (AREA)
  • Semiconductor Lasers (AREA)
  • Spectrometry And Color Measurement (AREA)
  • Optical Radar Systems And Details Thereof (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
IT97MI002259A 1996-10-07 1997-10-03 Contatore di canale di segnale ottico e dispositivo di amplificazione ottica utilizzante lo stesso IT1295276B1 (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8266112A JP2991131B2 (ja) 1996-10-07 1996-10-07 信号光チャネル数計数器とこれを用いた光増幅装置

Publications (2)

Publication Number Publication Date
ITMI972259A1 ITMI972259A1 (it) 1999-04-03
IT1295276B1 true IT1295276B1 (it) 1999-05-04

Family

ID=17426496

Family Applications (1)

Application Number Title Priority Date Filing Date
IT97MI002259A IT1295276B1 (it) 1996-10-07 1997-10-03 Contatore di canale di segnale ottico e dispositivo di amplificazione ottica utilizzante lo stesso

Country Status (4)

Country Link
US (1) US5966236A (it)
JP (1) JP2991131B2 (it)
FR (1) FR2754895B1 (it)
IT (1) IT1295276B1 (it)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100265792B1 (ko) 1997-09-26 2000-09-15 윤종용 파장분할다중전송시스템및그전송방법
SE9703000D0 (sv) * 1997-10-21 1997-08-20 Ericsson Telefon Ab L M Optical amplifier control
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
CN1255259A (zh) * 1998-02-06 2000-05-31 富士通株式会社 光放大器,用于光放器中的激励光源控制方法,和光放大器控制方法
US6411413B1 (en) * 1998-02-26 2002-06-25 Tycom (Us) Inc. Method and apparatus for performing dispersion compensation without a change in polarization and a transmitter incorporating same
DE19838788A1 (de) * 1998-08-26 2000-03-09 Siemens Ag Geregelter optischer Verstärker
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
EP1220388B1 (en) * 1999-07-09 2008-11-19 Sumitomo Electric Industries, Ltd. Optical amplifier and optical amplifying method
US6366393B1 (en) * 1999-08-25 2002-04-02 Lucent Technologies Inc. Fast gain control for optical amplifiers
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
WO2001047152A2 (en) * 1999-12-23 2001-06-28 Sdl, Inc. A lossless optical transmission link with raman gain
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
US6760152B2 (en) * 2001-10-12 2004-07-06 Jds Uniphase Corporation Method for increasing dynamic range of erbium doped fiber amplifiers
JP4094905B2 (ja) * 2002-07-25 2008-06-04 富士通株式会社 ラマン光増幅器
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
JP5857697B2 (ja) * 2011-12-07 2016-02-10 富士通株式会社 波長多重伝送装置
JP2015103831A (ja) * 2013-11-21 2015-06-04 富士通株式会社 光分岐装置および光挿入装置

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4206347A (en) * 1978-01-12 1980-06-03 Jersey Nuclear-Avco Isotopes, Inc. Acousto-optic multiplexing and demultiplexing
US4592043A (en) * 1983-07-08 1986-05-27 At&T Bell Laboratories Wavelength division multiplexing optical communications systems
GB2209101A (en) * 1987-08-23 1989-04-26 Schlumberger Ind Ltd Optical transducer sensing
EP1156606A3 (en) * 1991-10-21 2004-02-04 Nec Corporation An optical transmission system
GB2280561B (en) * 1993-07-31 1997-03-26 Northern Telecom Ltd Optical transmission system
GB9411061D0 (en) * 1994-06-02 1994-07-20 Northern Telecom Ltd Optical waveguide amplifiers
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
JP2723067B2 (ja) * 1995-03-14 1998-03-09 日本電気株式会社 光増幅装置
US5532864A (en) * 1995-06-01 1996-07-02 Ciena Corporation Optical monitoring channel for wavelength division multiplexed optical communication system
JP2809132B2 (ja) * 1995-06-07 1998-10-08 日本電気株式会社 光増幅監視装置
JP2871547B2 (ja) * 1995-09-08 1999-03-17 日本電気株式会社 光スペクトルアナライザ装置および光増幅器の制御方法
US5631758A (en) * 1995-10-26 1997-05-20 Lucent Technologies Inc. Chirped-pulse multiple wavelength telecommunications system

Also Published As

Publication number Publication date
ITMI972259A1 (it) 1999-04-03
FR2754895A1 (fr) 1998-04-24
JPH10112686A (ja) 1998-04-28
US5966236A (en) 1999-10-12
FR2754895B1 (fr) 2002-05-24
JP2991131B2 (ja) 1999-12-20

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