FR2747849B1 - Dispositif d'amplification optique et appareil de transfert de lumiere multiplexee en longueurs d'onde utilisant ce dispositif - Google Patents

Dispositif d'amplification optique et appareil de transfert de lumiere multiplexee en longueurs d'onde utilisant ce dispositif

Info

Publication number
FR2747849B1
FR2747849B1 FR9704957A FR9704957A FR2747849B1 FR 2747849 B1 FR2747849 B1 FR 2747849B1 FR 9704957 A FR9704957 A FR 9704957A FR 9704957 A FR9704957 A FR 9704957A FR 2747849 B1 FR2747849 B1 FR 2747849B1
Authority
FR
France
Prior art keywords
same
transfer apparatus
wavelength light
optical amplification
amplification device
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 - Fee Related
Application number
FR9704957A
Other languages
English (en)
Other versions
FR2747849A1 (fr
Inventor
Miwa Sasagawa
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.)
NEC Corp
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 FR2747849A1 publication Critical patent/FR2747849A1/fr
Application granted granted Critical
Publication of FR2747849B1 publication Critical patent/FR2747849B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H01S3/10—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
    • H04B10/293—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
    • 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
    • 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
    • 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
    • H01S3/1305—Feedback control systems

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Plasma & Fusion (AREA)
  • Optics & Photonics (AREA)
  • Lasers (AREA)
  • Optical Communication System (AREA)
  • Glass Compositions (AREA)
FR9704957A 1996-04-23 1997-04-22 Dispositif d'amplification optique et appareil de transfert de lumiere multiplexee en longueurs d'onde utilisant ce dispositif Expired - Fee Related FR2747849B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8100911A JP2904114B2 (ja) 1996-04-23 1996-04-23 光増幅装置とこれを用いた波長多重光伝送装置

Publications (2)

Publication Number Publication Date
FR2747849A1 FR2747849A1 (fr) 1997-10-24
FR2747849B1 true FR2747849B1 (fr) 1999-07-02

Family

ID=14286531

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9704957A Expired - Fee Related FR2747849B1 (fr) 1996-04-23 1997-04-22 Dispositif d'amplification optique et appareil de transfert de lumiere multiplexee en longueurs d'onde utilisant ce dispositif

Country Status (4)

Country Link
US (1) US5933262A (fr)
JP (1) JP2904114B2 (fr)
FR (1) FR2747849B1 (fr)
IT (1) IT1291645B1 (fr)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3075200B2 (ja) * 1996-12-10 2000-08-07 日本電気株式会社 信号光モニタとこれを用いた光増幅器
JPH10229386A (ja) * 1997-02-17 1998-08-25 Nec Corp 光ファイバアンプとこれを用いた光通信システム
JP3050304B2 (ja) * 1997-12-04 2000-06-12 日本電気株式会社 光ａｄｍ装置
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
JP3063724B2 (ja) * 1998-01-16 2000-07-12 日本電気株式会社 Ｗｄｍ光直接増幅器
JP4190545B2 (ja) * 1998-02-06 2008-12-03 富士通株式会社 光増幅器及び光増幅器の制御方法
JP3251223B2 (ja) 1998-02-25 2002-01-28 日本電気株式会社 光増幅器
JPH11284574A (ja) * 1998-03-31 1999-10-15 Nec Corp 光送信器、波長多重光送信器、及び光伝送方法
JP2943802B1 (ja) * 1998-08-07 1999-08-30 日本電気株式会社 可変波長フィルタ装置及び可変波長フィルタの制御方法
JP3851007B2 (ja) 1998-12-18 2006-11-29 富士通株式会社 波長多重光検出装置
JP3583309B2 (ja) 1999-02-17 2004-11-04 富士通株式会社 多波長光アンプの制御方法及びその装置
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
US6356386B1 (en) * 2000-02-29 2002-03-12 Lucent Technologies Inc. Method and apparatus for stabilizing transient control in amplified optical networks
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
US6999686B1 (en) * 2001-02-01 2006-02-14 Ciena Corporation Wavelength management in an optical network
WO2002103937A1 (fr) * 2001-06-18 2002-12-27 Fujitsu Limited Systeme et appareil de telecommunication par fibre optique

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2787820B2 (ja) * 1990-07-20 1998-08-20 キヤノン株式会社 波長多重光通信システム及びそこで用いられる光増幅装置
JP2734778B2 (ja) * 1991-01-16 1998-04-02 日本電気株式会社 光増幅装置
US5600473A (en) * 1993-06-04 1997-02-04 Ciena Corporation Optical amplifier systems with add/drop multiplexing
JP2550898B2 (ja) * 1993-11-30 1996-11-06 日本電気株式会社 光増幅装置
FR2715017B1 (fr) * 1994-01-13 1996-02-16 Alcatel Nv Procédé de transmission et liaison optique à multiplexage spectral avec amplification.
JPH0837497A (ja) * 1994-05-20 1996-02-06 Fujitsu Ltd 光増幅器及び光送信装置
JP2723067B2 (ja) * 1995-03-14 1998-03-09 日本電気株式会社 光増幅装置

Also Published As

Publication number Publication date
JP2904114B2 (ja) 1999-06-14
ITMI970951A1 (it) 1998-10-22
FR2747849A1 (fr) 1997-10-24
JPH09289503A (ja) 1997-11-04
IT1291645B1 (it) 1999-01-19
US5933262A (en) 1999-08-03
ITMI970951A0 (fr) 1997-04-22

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Legal Events

Date Code Title Description
ST Notification of lapse