FR2454220A1 - METHOD FOR MONITORING THE SIGNAL-TO-NOISE RATIO ON OPTICAL TRANSMISSION CHANNELS - Google Patents

METHOD FOR MONITORING THE SIGNAL-TO-NOISE RATIO ON OPTICAL TRANSMISSION CHANNELS

Info

Publication number
FR2454220A1
FR2454220A1 FR8006251A FR8006251A FR2454220A1 FR 2454220 A1 FR2454220 A1 FR 2454220A1 FR 8006251 A FR8006251 A FR 8006251A FR 8006251 A FR8006251 A FR 8006251A FR 2454220 A1 FR2454220 A1 FR 2454220A1
Authority
FR
France
Prior art keywords
noise ratio
optical transmission
signal
transmission channels
monitoring
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Withdrawn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
FR8006251A
Other languages
French (fr)
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 FR2454220A1 publication Critical patent/FR2454220A1/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Withdrawn legal-status Critical Current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)

Abstract

PROCEDE POUR LA SURVEILLANCE D'AMPLIFICATEURS SUR DES VOIES DE TRANSMISSION OPTIQUES. LE RAPPORT SIGNALBRUIT EST UTILISE COMME MESURE DU TAUX D'ERREURS DE BITS. LA GRANDEUR REGLANTE DE LA COMMANDE AUTOMATIQUE DE GAIN DE L'AMPLIFICATEUR D'ENTREE EST COMPAREE A UNE VALEUR LIMITE EMPIRIQUE, DONT LE DEPASSEMENT DELIVRE UN SIGNAL D'ALARME.METHOD FOR MONITORING AMPLIFIERS ON OPTICAL TRANSMISSION CHANNELS. THE SIGNAL NOISE RATIO IS USED AS A MEASURE OF THE BIT ERROR RATE. THE ADJUSTING VALUE OF THE AUTOMATIC INPUT AMPLIFIER GAIN CONTROL IS COMPARED TO AN EMPIRICAL LIMIT VALUE, WHOSE EXCEEDING DELIVERS AN ALARM SIGNAL.

FR8006251A 1979-03-22 1980-03-20 METHOD FOR MONITORING THE SIGNAL-TO-NOISE RATIO ON OPTICAL TRANSMISSION CHANNELS Withdrawn FR2454220A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792911175 DE2911175A1 (en) 1979-03-22 1979-03-22 METHOD FOR MONITORING THE SIGNAL / NOISE RATIO ON OPTICAL TRANSMISSION LINKS

Publications (1)

Publication Number Publication Date
FR2454220A1 true FR2454220A1 (en) 1980-11-07

Family

ID=6066062

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8006251A Withdrawn FR2454220A1 (en) 1979-03-22 1980-03-20 METHOD FOR MONITORING THE SIGNAL-TO-NOISE RATIO ON OPTICAL TRANSMISSION CHANNELS

Country Status (5)

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

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4947459A (en) * 1988-11-25 1990-08-07 Honeywell, Inc. Fiber optic link noise measurement and optimization system
ATE119338T1 (en) * 1989-08-03 1995-03-15 Siemens Ag METHOD FOR MONITORING THE OPERATING STATE OF AN ELECTRO-OPTICAL TRANSMISSION DEVICE AND CIRCUIT ARRANGEMENT FOR IMPLEMENTING THE METHOD.
GB2272590B (en) * 1992-11-17 1996-06-19 Northern Telecom Ltd Optical communications system

Citations (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
FR2333387A1 (en) * 1975-11-28 1977-06-24 Hewlett Packard Co DEVICE AND METHOD FOR TRANSMISSION OF BINARY-CODED INFORMATION

Patent Citations (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
FR2333387A1 (en) * 1975-11-28 1977-06-24 Hewlett Packard Co DEVICE AND METHOD FOR TRANSMISSION OF BINARY-CODED INFORMATION

Also Published As

Publication number Publication date
JPS55128942A (en) 1980-10-06
DE2911175A1 (en) 1980-09-25
IT8020328A0 (en) 1980-03-03
GB2045954A (en) 1980-11-05
IT1130264B (en) 1986-06-11

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Legal Events

Date Code Title Description
RE Withdrawal of published application