AU2002214469A1 - A system and a method for limiting the maximum of light transmitted from a ribbon fiber - Google Patents

A system and a method for limiting the maximum of light transmitted from a ribbon fiber

Info

Publication number
AU2002214469A1
AU2002214469A1 AU2002214469A AU1446902A AU2002214469A1 AU 2002214469 A1 AU2002214469 A1 AU 2002214469A1 AU 2002214469 A AU2002214469 A AU 2002214469A AU 1446902 A AU1446902 A AU 1446902A AU 2002214469 A1 AU2002214469 A1 AU 2002214469A1
Authority
AU
Australia
Prior art keywords
fiber
incoming
ribbon
ribbon fiber
optical power
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
AU2002214469A
Inventor
Jacob Rengman
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Publication of AU2002214469A1 publication Critical patent/AU2002214469A1/en
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
    • H04B10/075—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

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)
  • Eye Examination Apparatus (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)
  • Light Guides In General And Applications Therefor (AREA)

Abstract

A terminal (104) is connected to a communication link (102) comprising a ribbon fiber (110) for communication in two directions over pairs of fiber in the ribbon. For each incoming fiber (106) in the ribbon fiber a receiver (112) is connected to an amplifier/detector (114) which emits detection signals on line (117). The detection signals indicate that there is sufficient optical power in the corresponding incoming fibers and are supplied via gates (124) to control units (122). These control whether electric signals incoming on lines (120) are to be conveyed further to transmitters (118) for being sent on the outgoing fibers (108). A channel selector unit (126) delivers selector signals to the gates so that when insufficient optical power exists in an incoming fiber the corresponding transmitter is only permitted to transmit during short repeated periods and is shut off in between.
AU2002214469A 2000-11-15 2001-11-08 A system and a method for limiting the maximum of light transmitted from a ribbon fiber Abandoned AU2002214469A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE0004183 2000-11-15
SE0004183A SE517754C2 (en) 2000-11-15 2000-11-15 Device link and method for controlling communication links
PCT/SE2001/002475 WO2002041532A1 (en) 2000-11-15 2001-11-08 A system and a method for limiting the maximum of light transmitted from a ribbon fiber

Publications (1)

Publication Number Publication Date
AU2002214469A1 true AU2002214469A1 (en) 2002-05-27

Family

ID=20281832

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2002214469A Abandoned AU2002214469A1 (en) 2000-11-15 2001-11-08 A system and a method for limiting the maximum of light transmitted from a ribbon fiber

Country Status (6)

Country Link
EP (1) EP1340325B1 (en)
AT (1) ATE356476T1 (en)
AU (1) AU2002214469A1 (en)
DE (1) DE60127168D1 (en)
SE (1) SE517754C2 (en)
WO (1) WO2002041532A1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4317863C2 (en) * 1993-05-28 1997-08-21 Bosch Gmbh Robert Arrangement for monitoring an optical fiber transmission link
US5956168A (en) * 1997-08-14 1999-09-21 Finisar Corporation Multi-protocol dual fiber link laser diode controller and method
US6504630B1 (en) * 1998-12-04 2003-01-07 Lucent Technologies Inc. Automatic power shut-down arrangement for optical line systems
EP1017192B1 (en) * 1998-12-31 2006-02-22 Cisco Systems International B.V. Automatic protection system for an optical transmission system
GB2348063B (en) * 1999-03-19 2001-03-07 Marconi Comm Ltd Optical communication system

Also Published As

Publication number Publication date
ATE356476T1 (en) 2007-03-15
EP1340325A1 (en) 2003-09-03
WO2002041532A1 (en) 2002-05-23
SE0004183L (en) 2002-05-16
SE0004183D0 (en) 2000-11-15
EP1340325B1 (en) 2007-03-07
DE60127168D1 (en) 2007-04-19
SE517754C2 (en) 2002-07-09

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