CA1137787A - Methode et appareil de localisation de defauts dans un circuit a fibres optiques - Google Patents

Methode et appareil de localisation de defauts dans un circuit a fibres optiques

Info

Publication number: CA1137787A
Authority: CA; Canada
Prior art keywords: fiber; frequency; discontinuity; signal; interference signal
Prior art date: 1981-04-08
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

Application number

CA000374977A

Other languages

English (en)

Inventor

Felix P. Kapron

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.)

Nortel Networks Ltd

Original Assignee

Northern Telecom Ltd

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.)

1981-04-08

Filing date

1981-04-08

Publication date

1982-12-21

1981-04-08 Application filed by Northern Telecom Ltd filed Critical Northern Telecom Ltd

1981-04-08 Priority to CA000374977A priority Critical patent/CA1137787A/fr

1982-12-21 Application granted granted Critical

1982-12-21 Publication of CA1137787A publication Critical patent/CA1137787A/fr

Status Expired legal-status Critical Current

Links

238000000034 method Methods 0.000 title claims abstract description 21
239000013307 optical fiber Substances 0.000 title claims abstract description 5
239000000835 fiber Substances 0.000 claims abstract description 52
230000003287 optical effect Effects 0.000 claims description 18
238000001228 spectrum Methods 0.000 claims description 14
238000002347 injection Methods 0.000 claims description 2
239000007924 injection Substances 0.000 claims description 2
230000001902 propagating effect Effects 0.000 claims 2
238000012544 monitoring process Methods 0.000 claims 1
238000002310 reflectometry Methods 0.000 abstract description 3
238000000253 optical time-domain reflectometry Methods 0.000 description 6
238000012360 testing method Methods 0.000 description 6
230000008901 benefit Effects 0.000 description 4
238000002168 optical frequency-domain reflectometry Methods 0.000 description 4
230000004044 response Effects 0.000 description 4
238000012935 Averaging Methods 0.000 description 2
230000010355 oscillation Effects 0.000 description 2
230000009467 reduction Effects 0.000 description 2
230000002238 attenuated effect Effects 0.000 description 1
230000008859 change Effects 0.000 description 1
238000004891 communication Methods 0.000 description 1
239000002131 composite material Substances 0.000 description 1
230000006866 deterioration Effects 0.000 description 1
230000000694 effects Effects 0.000 description 1
230000004927 fusion Effects 0.000 description 1
238000010438 heat treatment Methods 0.000 description 1
238000007654 immersion Methods 0.000 description 1
230000006872 improvement Effects 0.000 description 1
239000000463 material Substances 0.000 description 1
238000005259 measurement Methods 0.000 description 1
230000003534 oscillatory effect Effects 0.000 description 1
230000008439 repair process Effects 0.000 description 1
239000004065 semiconductor Substances 0.000 description 1
230000035945 sensitivity Effects 0.000 description 1
238000000926 separation method Methods 0.000 description 1
238000010183 spectrum analysis Methods 0.000 description 1
238000010408 sweeping Methods 0.000 description 1
230000001360 synchronised effect Effects 0.000 description 1

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
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- 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
- H04B10/071—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using a reflected signal, e.g. using optical time domain reflectometers [OTDR]

Landscapes

Physics & Mathematics (AREA)
Electromagnetism (AREA)
Engineering & Computer Science (AREA)
Computer Networks & Wireless Communication (AREA)
Signal Processing (AREA)
Testing Of Optical Devices Or Fibers (AREA)

CA000374977A 1981-04-08 1981-04-08 Methode et appareil de localisation de defauts dans un circuit a fibres optiques Expired CA1137787A (fr)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
CA000374977A CA1137787A (fr)	1981-04-08	1981-04-08	Methode et appareil de localisation de defauts dans un circuit a fibres optiques

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA000374977A CA1137787A (fr)	1981-04-08	1981-04-08	Methode et appareil de localisation de defauts dans un circuit a fibres optiques

Publications (1)

Publication Number	Publication Date
CA1137787A true CA1137787A (fr)	1982-12-21

Family

ID=4119684

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA000374977A Expired CA1137787A (fr)	1981-04-08	1981-04-08	Methode et appareil de localisation de defauts dans un circuit a fibres optiques

Country Status (1)

Country	Link
CA (1)	CA1137787A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0448293A1 (fr) *	1990-03-22	1991-09-25	STC Submarine Systems Limited	Procédé pour localiser une faute

1981
- 1981-04-08 CA CA000374977A patent/CA1137787A/fr not_active Expired

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0448293A1 (fr) *	1990-03-22	1991-09-25	STC Submarine Systems Limited	Procédé pour localiser une faute
US5184081A (en) *	1990-03-22	1993-02-02	Northern Telecom Europe	Fault location

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Legal Events

Date	Code	Title	Description
1999-12-21	MKEX	Expiry