DK0618650T3 - - Google Patents

Info

Publication number
DK0618650T3
DK0618650T3 DK94104467.9T DK94104467T DK0618650T3 DK 0618650 T3 DK0618650 T3 DK 0618650T3 DK 94104467 T DK94104467 T DK 94104467T DK 0618650 T3 DK0618650 T3 DK 0618650T3
Authority
DK
Denmark
Prior art keywords
fibre
input light
light power
optic
amplifiers
Prior art date
Application number
DK94104467.9T
Other languages
Danish (da)
English (en)
Inventor
Rolf Dr Heidemann
Bernhard Junginger
Original Assignee
Sel Alcatel Ag
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 Sel Alcatel Ag filed Critical Sel Alcatel Ag
Application granted granted Critical
Publication of DK0618650T3 publication Critical patent/DK0618650T3/da

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
    • 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
    • H01S3/094003—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light the pumped medium being a fibre
    • 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
    • H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
    • H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
    • H04B10/077—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using a supervisory or additional signal
    • 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
    • H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
    • H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
    • H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
    • H04B10/0795—Performance monitoring; Measurement of transmission parameters
    • H04B10/07955—Monitoring or measuring 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
    • 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
    • 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
    • H01S3/0014—Monitoring arrangements not otherwise provided for
    • 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
    • H01S3/10—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
    • H01S3/131—Stabilisation of laser output parameters, e.g. frequency or amplitude by controlling the active medium, e.g. by controlling the processes or apparatus for excitation
    • H01S3/1315—Stabilisation of laser output parameters, e.g. frequency or amplitude by controlling the active medium, e.g. by controlling the processes or apparatus for excitation by gain saturation

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)
  • Amplifiers (AREA)
  • Testing Of Optical Devices Or Fibers (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)
DK94104467.9T 1993-03-30 1994-03-22 DK0618650T3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4310292A DE4310292A1 (de) 1993-03-30 1993-03-30 Faseroptischer Verstärker mit einer Vorrichtung zu Überwachung der Eingangsleistung

Publications (1)

Publication Number Publication Date
DK0618650T3 true DK0618650T3 (fr) 1997-03-17

Family

ID=6484216

Family Applications (1)

Application Number Title Priority Date Filing Date
DK94104467.9T DK0618650T3 (fr) 1993-03-30 1994-03-22

Country Status (8)

Country Link
US (1) US5521752A (fr)
EP (1) EP0618650B1 (fr)
JP (1) JPH0750439A (fr)
AT (1) ATE143181T1 (fr)
CA (1) CA2119838A1 (fr)
DE (2) DE4310292A1 (fr)
DK (1) DK0618650T3 (fr)
ES (1) ES2094579T3 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9309006D0 (en) * 1993-04-30 1993-06-16 Laser Ecosse Ltd High power laser amplifier
JPH0837497A (ja) * 1994-05-20 1996-02-06 Fujitsu Ltd 光増幅器及び光送信装置
JP3587580B2 (ja) * 1995-03-17 2004-11-10 富士通株式会社 光増幅中継器の入力モニタシステム
JP3530951B2 (ja) * 1996-03-29 2004-05-24 株式会社日立コミュニケーションテクノロジー 光ファイバ、光増幅器および光伝送システム
US6151336A (en) * 1998-02-11 2000-11-21 Sorrento Networks, Inc. Time division multiplexing expansion subsystem
US6400478B1 (en) 1998-04-02 2002-06-04 Sorrento Networks, Inc. Wavelength-division-multiplexed optical transmission system with expanded bidirectional transmission capacity over a single fiber
US6298103B1 (en) 1998-06-16 2001-10-02 Sorrento Networks Corporation Flexible clock and data recovery module for a DWDM optical communication system with multiple clock rates

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3137632B2 (ja) * 1989-08-31 2001-02-26 富士通株式会社 光ファイバ増幅器を備えた光通信方式
US5229876A (en) * 1990-03-26 1993-07-20 At&T Bell Laboratories Telemetry for optical fiber amplifier repeater
JP2649737B2 (ja) * 1990-07-05 1997-09-03 国際電信電話株式会社 光増幅器の励起光源駆動方式
DE4036327A1 (de) * 1990-11-15 1992-05-21 Standard Elektrik Lorenz Ag Optisches nachrichtenuebertragungssystem mit einem faseroptischen verstaerker
IT1247844B (it) * 1991-03-29 1995-01-02 Pirelli Cavi S P A Dir Proprie Linea di telecomunicazione a fibre ottiche con amplificatori ottici, dotata di mezzi di protezione in grado di interrompere l'emissione luminosa in tutta la linea in presenza di un'interruzione della fibra ottica e di riattivarla automaticamente al ripristino della sua continuita'
DE4208858A1 (de) * 1992-03-19 1993-09-23 Sel Alcatel Ag Faseroptischer verstaerker mit regelung der pumplicht-wellenlaenge
US5374973A (en) * 1993-09-21 1994-12-20 Alcatel Network Systems, Inc. Optical amplifier

Also Published As

Publication number Publication date
EP0618650A2 (fr) 1994-10-05
US5521752A (en) 1996-05-28
EP0618650A3 (fr) 1994-11-30
ES2094579T3 (es) 1997-01-16
DE4310292A1 (de) 1994-10-06
JPH0750439A (ja) 1995-02-21
CA2119838A1 (fr) 1994-10-01
ATE143181T1 (de) 1996-10-15
EP0618650B1 (fr) 1996-09-18
DE59400656D1 (de) 1996-10-24

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