JPH05500107A - 光通信システム - Google Patents

光通信システム

Info

Publication number
JPH05500107A
JPH05500107A JP2511805A JP51180590A JPH05500107A JP H05500107 A JPH05500107 A JP H05500107A JP 2511805 A JP2511805 A JP 2511805A JP 51180590 A JP51180590 A JP 51180590A JP H05500107 A JPH05500107 A JP H05500107A
Authority
JP
Japan
Prior art keywords
test
test pulse
pulse sequence
sequence
frame
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.)
Pending
Application number
JP2511805A
Other languages
English (en)
Japanese (ja)
Inventor
ジェイムズ、サイモン・マーク
ドルート、ドミニク
ゴールド、ステファン・エリック
Original Assignee
ブリテイッシュ・テレコミュニケーションズ・パブリック・リミテッド・カンパニー
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 ブリテイッシュ・テレコミュニケーションズ・パブリック・リミテッド・カンパニー filed Critical ブリテイッシュ・テレコミュニケーションズ・パブリック・リミテッド・カンパニー
Publication of JPH05500107A publication Critical patent/JPH05500107A/ja
Pending legal-status Critical Current

Links

Classifications

    • 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)
  • Optical Communication System (AREA)
  • Testing Of Optical Devices Or Fibers (AREA)
JP2511805A 1989-08-18 1990-08-09 光通信システム Pending JPH05500107A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB898918862A GB8918862D0 (en) 1989-08-18 1989-08-18 Line monitoring system
GB8918862.7 1989-08-18

Publications (1)

Publication Number Publication Date
JPH05500107A true JPH05500107A (ja) 1993-01-14

Family

ID=10661821

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2511805A Pending JPH05500107A (ja) 1989-08-18 1990-08-09 光通信システム

Country Status (7)

Country Link
EP (1) EP0486583A1 (de)
JP (1) JPH05500107A (de)
AU (1) AU637629B2 (de)
CA (1) CA2064789A1 (de)
GB (1) GB8918862D0 (de)
NZ (1) NZ234860A (de)
WO (1) WO1991002959A1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991012509A1 (en) * 1990-02-15 1991-08-22 British Telecommunications Public Limited Company Optical test apparatus
DE69321548T2 (de) * 1992-05-01 1999-04-15 Nippon Telegraph And Telephone Corp., Tokio/Tokyo Verfahren zur identifizierung einer optischen linie
GB9524485D0 (en) * 1995-11-30 1996-01-31 Bicc Plc Device for interrogating an optical fibre network
GB2401738A (en) * 2003-05-16 2004-11-17 Radiodetection Ltd Optical fibre sensor
US9118412B2 (en) 2011-09-27 2015-08-25 Broadcom Corporation System and method for performing in-band reflection analysis in a passive optical network

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3340428A1 (de) * 1983-11-09 1985-05-23 Wandel & Goltermann Gmbh & Co, 7412 Eningen Verfahren und einrichtung zur ueberwachung eines optischen nachrichtenuebertragungssystems
GB8906937D0 (en) * 1989-03-28 1989-05-10 Plessey Telecomm Testing optical fibre links
GB9027716D0 (en) * 1990-12-20 1991-02-13 British Telecomm Optical communications system

Also Published As

Publication number Publication date
NZ234860A (en) 1992-10-28
GB8918862D0 (en) 1989-09-27
CA2064789A1 (en) 1991-02-19
EP0486583A1 (de) 1992-05-27
AU637629B2 (en) 1993-06-03
WO1991002959A1 (en) 1991-03-07
AU6182690A (en) 1991-04-03

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