ATE257297T1 - System mit durch rückkopplung kontrollierten optischen verstärkern - Google Patents

System mit durch rückkopplung kontrollierten optischen verstärkern

Info

Publication number
ATE257297T1
ATE257297T1 AT97941306T AT97941306T ATE257297T1 AT E257297 T1 ATE257297 T1 AT E257297T1 AT 97941306 T AT97941306 T AT 97941306T AT 97941306 T AT97941306 T AT 97941306T AT E257297 T1 ATE257297 T1 AT E257297T1
Authority
AT
Austria
Prior art keywords
output
feedback
detector block
optical amplifiers
optical amplifier
Prior art date
Application number
AT97941306T
Other languages
English (en)
Inventor
Bo Gunnar Lagerstroem
Gunnar Forsberg
Magnus Oeberg
Dag Bonnedal
Bengt Johansson
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Application granted granted Critical
Publication of ATE257297T1 publication Critical patent/ATE257297T1/de

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
    • H01S3/10007—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
    • H01S3/13—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
    • H04B10/293—Signal power control
    • H04B10/294—Signal power control in a multiwavelength system, e.g. gain equalisation
    • 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
    • H01S3/09—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
    • H01S3/094061—Shared pump, i.e. pump light of a single pump source is used to pump plural gain media in parallel
    • 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
    • H01S3/23—Arrangements of two or more lasers not provided for in groups H01S3/02 - H01S3/22, e.g. tandem arrangements of separate active media
    • H01S3/2383—Parallel arrangements

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Optics & Photonics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)
  • Lasers (AREA)
  • Semiconductor Lasers (AREA)
  • Feedback Control In General (AREA)
  • Amplifiers (AREA)
AT97941306T 1996-09-13 1997-09-11 System mit durch rückkopplung kontrollierten optischen verstärkern ATE257297T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9603337A SE506403C2 (sv) 1996-09-13 1996-09-13 Transmissionssystem med återkopplad optisk förstärkare
PCT/SE1997/001535 WO1998011681A1 (en) 1996-09-13 1997-09-11 System with feedback controlled optical amplifiers

Publications (1)

Publication Number Publication Date
ATE257297T1 true ATE257297T1 (de) 2004-01-15

Family

ID=20403872

Family Applications (1)

Application Number Title Priority Date Filing Date
AT97941306T ATE257297T1 (de) 1996-09-13 1997-09-11 System mit durch rückkopplung kontrollierten optischen verstärkern

Country Status (12)

Country Link
US (1) US6215583B1 (de)
EP (1) EP0917775B1 (de)
JP (1) JP2001500336A (de)
CN (1) CN1130859C (de)
AT (1) ATE257297T1 (de)
AU (1) AU4324697A (de)
BR (1) BR9711785A (de)
DE (1) DE69727061T2 (de)
ES (1) ES2213834T3 (de)
MY (1) MY123816A (de)
SE (1) SE506403C2 (de)
WO (1) WO1998011681A1 (de)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE512370C2 (sv) 1998-07-03 2000-03-06 Ericsson Telefon Ab L M Anordning och förfarande för att uppskatta total bruseffekt
SE514253C2 (sv) * 1998-07-17 2001-01-29 Ericsson Telefon Ab L M Förbättrad styrning av optiska fiberförstärkare
EP0981212A1 (de) * 1998-08-14 2000-02-23 Telefonaktiebolaget Lm Ericsson Wegüberwachung in optischen Übertragungssystemen
US6414775B1 (en) * 1998-12-28 2002-07-02 Tycom (Us) Inc. Method and apparatus for measuring gain shape in an optical repeater using FM modulation
JP2001077754A (ja) * 1999-09-01 2001-03-23 Fujitsu Ltd 光分岐装置および光分岐・挿入装置
DE19952216B4 (de) * 1999-10-29 2009-04-02 Carl Zeiss Meditec Ag Anordnung zur Leistungsregelung und -überwachung von durch eine oder mehrere optische Faser(n) übertragener Strahlung
KR100326318B1 (ko) * 2000-02-09 2002-03-08 윤종용 파장분할다중화 시스템용 광섬유 증폭기의 일시 과도 현상억제 장치
US6961522B1 (en) 2000-11-22 2005-11-01 Cisco Technology, Inc. Automatic raman gain and tilt control for ultra-long-distance dense WDM optical communication system
US7065300B1 (en) 2000-12-14 2006-06-20 Finsiar Corporation Optical transmitter including a linear semiconductor optical amplifier
US6853658B1 (en) 2000-12-14 2005-02-08 Finisar Corporation Optical logical circuits based on lasing semiconductor optical amplifiers
US6909536B1 (en) 2001-03-09 2005-06-21 Finisar Corporation Optical receiver including a linear semiconductor optical amplifier
CN100353695C (zh) * 2001-04-11 2007-12-05 模式转换控股公司 低损耗wdm插入分出节点
US6941079B1 (en) * 2001-05-24 2005-09-06 Cisco Technology, Inc. Optical demultiplexer with multi-channel power control and tilt compensation
JP4665344B2 (ja) * 2001-06-04 2011-04-06 株式会社日立製作所 波長間レベル偏差や光ｓｎ偏差を補償する光伝送装置
US6690508B2 (en) 2002-03-26 2004-02-10 Fujitsu Network Communications, Inc. Control system and method for an optical amplifier
WO2007012829A2 (en) * 2005-07-25 2007-02-01 Azea Networks Limited Twin optical amplifier with dual pump power control
JP4935250B2 (ja) * 2006-08-31 2012-05-23 富士通株式会社 分散補償装置および分散補償制御方法
CZ305446B6 (cs) * 2010-11-26 2015-09-23 Microrisc S. R. O. Způsob vytvoření funkčního uspořádání obecné bezdrátové mesh sítě komunikačních zařízení s paketovým přenosem zpráv a způsob směrování paketového přenosu zpráv v takto vytvořené síti
CN116316020A (zh) * 2023-02-07 2023-06-23 华中光电技术研究所(中国船舶集团有限公司第七一七研究所) 一种高功率单频激光器的功率前馈控制装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4991229A (en) * 1989-04-03 1991-02-05 Honeywell Inc. Optical transmitter power measurement and control
JPH05199184A (ja) 1992-01-20 1993-08-06 Fujitsu Ltd 光増幅中継器
GB2280561B (en) * 1993-07-31 1997-03-26 Northern Telecom Ltd Optical transmission system
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
JP3363003B2 (ja) * 1995-10-03 2003-01-07 株式会社日立製作所 光増幅装置及び光増幅装置を用いた光伝送システム
JPH09321701A (ja) 1996-05-31 1997-12-12 Fujitsu Ltd 光通信システム及び光増幅器

Also Published As

Publication number Publication date
JP2001500336A (ja) 2001-01-09
WO1998011681A1 (en) 1998-03-19
BR9711785A (pt) 1999-08-24
AU4324697A (en) 1998-04-02
ES2213834T3 (es) 2004-09-01
SE9603337L (sv) 1997-12-15
SE9603337D0 (sv) 1996-09-13
CN1230314A (zh) 1999-09-29
SE506403C2 (sv) 1997-12-15
US6215583B1 (en) 2001-04-10
EP0917775A1 (de) 1999-05-26
DE69727061D1 (de) 2004-02-05
DE69727061T2 (de) 2004-11-25
MY123816A (en) 2006-06-30
EP0917775B1 (de) 2004-01-02
CN1130859C (zh) 2003-12-10

Similar Documents

Publication Publication Date Title
SE9603336L (sv) System med optisk förstärkare
DE69727061D1 (de) System mit durch rückkopplung kontrollierten optischen verstärkern
AU648868B2 (en) Optical-to-electric transducer with extended dynamic range
EP0777346A3 (de) Optischer Verstärker und diesen verwendendes optisches Übertragungssystem
CA2337183A1 (en) Optical amplifier and a method of controlling the optical amplifier
KR970075964A (ko) 파장 다중화 광섬유 증폭기용 파워 레벨 제어기
TW366632B (en) Optical fiber amplifier having variable gain
ATE331351T1 (de) Optische verstärkerüberwachungssteuerung und verfahren zur verwendung
EP0838913A3 (de) Stabilisierte Leistungsregelung für optische Übertragungssysteme
FI954809A0 (fi) Ylläpitosanomien välittäminen kuituvahvistimelta
CA2228227A1 (en) Dynamic gain control system for optical amplifier and method thereof
ATE221280T1 (de) Optische verstärkereinrichtung
EP0818894A3 (de) Sender für optische Signale und optisches Übertragunssystem mit einem solchen Sender
EP1317083A3 (de) Ramanverstärkungssystem und optische Signalübertragung unter Verwendung desselben
ATE251352T1 (de) Optischer faserverstärker und kommunikationssystem unter verwendung desselben
EP1187275A3 (de) Verfahren und Vorrichtung zur Verstärkungsregelung für Erbium-dotierten Faserverstärker
EP0944188A3 (de) Optische Verstärkungseinrichtung für Wellenlängenmultiplexsignale
SE9701521L (sv) Effektförstärkare och tillhörande förfarande
EP1220382A3 (de) Optischer Verstärker, optisches Kommunikationssystem unter Verwendung desselben und darin enthaltenes faseroptisches Modul
EP0593237A3 (de) Optischer Halbleiterverstärker
TW275164B (en) Precision current mirror circuit
EP0986149A3 (de) Optischer Verstärker
EP0959640A3 (de) Optischer Schalter und optisches Netzwerk
AU2002224306A1 (en) Amplifier circuit, an optical communication system and a method of controlling amplification
WO2002101892A8 (en) Dynamically controlled optical amplifier module

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties