GB2045954A - Method of monitoring an amplifier in an opto-electrical circuit - Google Patents

Method of monitoring an amplifier in an opto-electrical circuit Download PDF

Info

Publication number
GB2045954A
GB2045954A GB8008611A GB8008611A GB2045954A GB 2045954 A GB2045954 A GB 2045954A GB 8008611 A GB8008611 A GB 8008611A GB 8008611 A GB8008611 A GB 8008611A GB 2045954 A GB2045954 A GB 2045954A
Authority
GB
United Kingdom
Prior art keywords
amplifier
signal
value
monitoring
noise ratio
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.)
Withdrawn
Application number
GB8008611A
Other languages
English (en)
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Publication of GB2045954A publication Critical patent/GB2045954A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/28—Testing of electronic circuits, e.g. by signal tracer
    • G01R31/317—Testing of digital circuits
    • G01R31/31708—Analysis of signal quality
    • G01R31/3171—BER [Bit Error Rate] test
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/28—Measuring attenuation, gain, phase shift or derived characteristics of electric four pole networks, i.e. two-port networks; Measuring transient response
    • 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
    • H04B10/07—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
    • H04B10/0797—Monitoring line amplifier or line repeater equipment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/24—Testing correct operation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2210/00—Indexing scheme relating to optical transmission systems
    • H04B2210/08—Shut-down or eye-safety

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Optical Communication System (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Dc Digital Transmission (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
GB8008611A 1979-03-22 1980-03-13 Method of monitoring an amplifier in an opto-electrical circuit Withdrawn GB2045954A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792911175 DE2911175A1 (de) 1979-03-22 1979-03-22 Verfahren zur ueberwachung des signal/ rausch-verhaeltnisses auf optischen uebertragungsstrecken

Publications (1)

Publication Number Publication Date
GB2045954A true GB2045954A (en) 1980-11-05

Family

ID=6066062

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8008611A Withdrawn GB2045954A (en) 1979-03-22 1980-03-13 Method of monitoring an amplifier in an opto-electrical circuit

Country Status (5)

Country Link
JP (1) JPS55128942A (fr)
DE (1) DE2911175A1 (fr)
FR (1) FR2454220A1 (fr)
GB (1) GB2045954A (fr)
IT (1) IT1130264B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990006640A1 (fr) * 1988-11-25 1990-06-14 Honeywell Inc. Mesure du bruit dans une ligne de fibre optique et systeme d'optimalisation
EP0411188A1 (fr) * 1989-08-03 1991-02-06 Siemens Aktiengesellschaft Méthode pour la surveillance de l'état de fonctionnement d'un dispositif de transmission électro-optique et circuit pour la mise en oeuvre
GB2272590A (en) * 1992-11-17 1994-05-18 Northern Telecom Ltd Optical communications system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3213370A (en) * 1961-03-13 1965-10-19 Ibm Signal selecting system with switching at the interstice between data increments
US4027152A (en) * 1975-11-28 1977-05-31 Hewlett-Packard Company Apparatus and method for transmitting binary-coded information

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990006640A1 (fr) * 1988-11-25 1990-06-14 Honeywell Inc. Mesure du bruit dans une ligne de fibre optique et systeme d'optimalisation
EP0411188A1 (fr) * 1989-08-03 1991-02-06 Siemens Aktiengesellschaft Méthode pour la surveillance de l'état de fonctionnement d'un dispositif de transmission électro-optique et circuit pour la mise en oeuvre
US5224128A (en) * 1989-08-03 1993-06-29 Siemens Aktiengesellschaft Method and circuit arrangement for monitoring the operating condition of an electro-optical transmission system
GB2272590A (en) * 1992-11-17 1994-05-18 Northern Telecom Ltd Optical communications system
FR2698174A1 (fr) * 1992-11-17 1994-05-20 Northern Telecom Ltd Procédé de mesure du rapport signal-sur-bruit dans un amplificateur.
GB2272590B (en) * 1992-11-17 1996-06-19 Northern Telecom Ltd Optical communications system

Also Published As

Publication number Publication date
IT1130264B (it) 1986-06-11
FR2454220A1 (fr) 1980-11-07
JPS55128942A (en) 1980-10-06
IT8020328A0 (it) 1980-03-03
DE2911175A1 (de) 1980-09-25

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)