CA2178952A1 - Surveillance de lignes optiques de raccordement a large bande jusqu'a une interface passive - Google Patents

Surveillance de lignes optiques de raccordement a large bande jusqu'a une interface passive

Info

Publication number
CA2178952A1
CA2178952A1 CA 2178952 CA2178952A CA2178952A1 CA 2178952 A1 CA2178952 A1 CA 2178952A1 CA 2178952 CA2178952 CA 2178952 CA 2178952 A CA2178952 A CA 2178952A CA 2178952 A1 CA2178952 A1 CA 2178952A1
Authority
CA
Canada
Prior art keywords
signal
optical
pseudo
line unit
owg
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.)
Abandoned
Application number
CA 2178952
Other languages
English (en)
Inventor
Frowin Derr
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.)
Siemens AG
Original Assignee
Individual
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
Priority claimed from DE19934342792 external-priority patent/DE4342792A1/de
Priority claimed from DE19944411376 external-priority patent/DE4411376A1/de
Application filed by Individual filed Critical Individual
Publication of CA2178952A1 publication Critical patent/CA2178952A1/fr
Abandoned legal-status Critical Current

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
    • H04B10/07—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]
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
    • G01M11/30—Testing of optical devices, constituted by fibre optics or optical waveguides
    • G01M11/31—Testing of optical devices, constituted by fibre optics or optical waveguides with a light emitter and a light receiver being disposed at the same side of a fibre or waveguide end-face, e.g. reflectometers
    • G01M11/3109—Reflectometers detecting the back-scattered light in the time-domain, e.g. OTDR
    • G01M11/3118—Reflectometers detecting the back-scattered light in the time-domain, e.g. OTDR using coded light-pulse sequences
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
    • G01M11/30—Testing of optical devices, constituted by fibre optics or optical waveguides
    • G01M11/39—Testing of optical devices, constituted by fibre optics or optical waveguides in which light is projected from both sides of the fiber or waveguide end-face

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)

Abstract

Un signal binaire de bruit pseudo-aléatoire est transmis avec le signal d'information depuis une unité de raccordement à grande longueur d'onde. Une partie réduite du signal optique est déviée sur un embranchement au niveau de l'interface passive et retransmise à l'unité de raccordement, puis transmise, avec le signal optique reçu en sens inverse, au transducteur optoélectrique. Le signal électrique de réception est soumis à une corrélation avec le signal binaire originel de bruit pseudo-aléatoire entre-temps retardé. L'amplitude des signaux de corrélation ainsi obtenue indique, en tenant compte du temps de propagation du signal, l'occurrence ou la non-occurrence du signal binaire de bruit pseudo-aléatoire réfléchi par l'interface passive (PNT1)
CA 2178952 1993-12-15 1994-12-01 Surveillance de lignes optiques de raccordement a large bande jusqu'a une interface passive Abandoned CA2178952A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DEP4342792.8 1993-12-15
DE19934342792 DE4342792A1 (de) 1993-12-15 1993-12-15 Überwachung optischer Breitband-Anschlußleitungen bis zu einer passiven Schnittstelle
DEP4411376.5 1994-03-31
DE19944411376 DE4411376A1 (de) 1994-03-31 1994-03-31 Überwachung optischer Breitband-Anschlußleitungen bis zu einer passiven Schnittstelle

Publications (1)

Publication Number Publication Date
CA2178952A1 true CA2178952A1 (fr) 1995-06-22

Family

ID=25932104

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2178952 Abandoned CA2178952A1 (fr) 1993-12-15 1994-12-01 Surveillance de lignes optiques de raccordement a large bande jusqu'a une interface passive

Country Status (5)

Country Link
EP (1) EP0734622A1 (fr)
JP (1) JPH09506748A (fr)
CA (1) CA2178952A1 (fr)
RU (1) RU2115245C1 (fr)
WO (1) WO1995017053A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6441937B1 (en) 2001-07-03 2002-08-27 Infineon Technologies Ag Optoelectronic transceiver module, and method for receiving optical signals

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2315938B (en) * 1996-08-01 2001-02-28 Northern Telecom Ltd Optical transmission system fault analysis
US10070695B2 (en) 2010-04-30 2018-09-11 Boa Technology Inc. Tightening mechanisms and applications including the same
US9118412B2 (en) 2011-09-27 2015-08-25 Broadcom Corporation System and method for performing in-band reflection analysis in a passive optical network
RU2484521C1 (ru) * 2012-03-27 2013-06-10 Федеральное государственное бюджетное учреждение науки Институт проблем управления им. В.А. Трапезникова РАН Устройство обнаружения и устранения отказов при передаче двоичных сигналов по двум линиям оптического канала

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62179632A (ja) * 1986-02-03 1987-08-06 Advantest Corp 光フアイバ試験装置
GB2190186B (en) * 1986-05-09 1990-12-19 Dr Jeremy Kenneth Arth Everard Greatly enhanced spatial detection of optical backscatter for sensor applications
GB9027716D0 (en) * 1990-12-20 1991-02-13 British Telecomm Optical communications system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6441937B1 (en) 2001-07-03 2002-08-27 Infineon Technologies Ag Optoelectronic transceiver module, and method for receiving optical signals

Also Published As

Publication number Publication date
WO1995017053A1 (fr) 1995-06-22
EP0734622A1 (fr) 1996-10-02
RU2115245C1 (ru) 1998-07-10
JPH09506748A (ja) 1997-06-30

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Legal Events

Date Code Title Description
FZDE Dead