WO2001093464A3 - Device and method for monitoring signal direction in an optical communications network - Google Patents

Device and method for monitoring signal direction in an optical communications network Download PDF

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Publication number
WO2001093464A3
WO2001093464A3 PCT/US2001/017831 US0117831W WO0193464A3 WO 2001093464 A3 WO2001093464 A3 WO 2001093464A3 US 0117831 W US0117831 W US 0117831W WO 0193464 A3 WO0193464 A3 WO 0193464A3
Authority
WO
WIPO (PCT)
Prior art keywords
optical
opm
communications network
signals
optical communications
Prior art date
Application number
PCT/US2001/017831
Other languages
French (fr)
Other versions
WO2001093464A2 (en
WO2001093464A9 (en
WO2001093464A8 (en
Inventor
Michael Sussman
Ian Turner
Original Assignee
Lightchip Inc
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 US09/872,383 external-priority patent/US20010048537A1/en
Application filed by Lightchip Inc filed Critical Lightchip Inc
Priority to AU2001292546A priority Critical patent/AU2001292546A1/en
Priority to CA002410897A priority patent/CA2410897A1/en
Priority to EP01972915A priority patent/EP1312174A2/en
Publication of WO2001093464A2 publication Critical patent/WO2001093464A2/en
Publication of WO2001093464A8 publication Critical patent/WO2001093464A8/en
Publication of WO2001093464A9 publication Critical patent/WO2001093464A9/en
Publication of WO2001093464A3 publication Critical patent/WO2001093464A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
    • H04J14/0241—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths
    • H04J14/0242—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths in WDM-PON
    • H04J14/0245—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths in WDM-PON for downstream transmission, e.g. optical line terminal [OLT] to ONU
    • H04J14/0246—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths in WDM-PON for downstream transmission, e.g. optical line terminal [OLT] to ONU using one wavelength per ONU
    • 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
    • H04B10/077—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using a supervisory or additional signal
    • 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
    • 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
    • H04B10/0795—Performance monitoring; Measurement of transmission parameters
    • H04B10/07957—Monitoring or measuring wavelength
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
    • H04J14/0241—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths
    • H04J14/0242—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths in WDM-PON
    • H04J14/0249—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths in WDM-PON for upstream transmission, e.g. ONU-to-OLT or ONU-to-ONU
    • H04J14/025—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths in WDM-PON for upstream transmission, e.g. ONU-to-OLT or ONU-to-ONU using one wavelength per ONU, e.g. for transmissions from-ONU-to-OLT or from-ONU-to-ONU
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0278—WDM optical network architectures
    • H04J14/0279—WDM point-to-point architectures

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Optical Communication System (AREA)

Abstract

A method and device are disclosed for monitoring communication activity within an optical communications network. The device includes a pair of optical components for tapping optical signals transported across a fiber optic line in the optical communications network. At least one optical performance monitor (OPM) receives tapped signals from the pair of optical components. An optical switch, controlled by the OPM, selectively provides to the at least one OPM tapped signals corresponding to optical signals traveling on the fiber optic line in a first direction. The OPM measures the various signal characteristics of the tapped signals when the optical switch is opened and closed, and determines the direction of travel of optical signals on the first optic line based upon the measured signal characteristics.
PCT/US2001/017831 2000-06-02 2001-06-01 Device and method for monitoring signal direction in an optical communications network WO2001093464A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AU2001292546A AU2001292546A1 (en) 2000-06-02 2001-06-01 Device and method for monitoring signal direction in an optical communications network
CA002410897A CA2410897A1 (en) 2000-06-02 2001-06-01 Device and method for monitoring signal direction in an optical communications network
EP01972915A EP1312174A2 (en) 2000-06-02 2001-06-01 Device and method for monitoring signal direction in an optical communications network

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US20848100P 2000-06-02 2000-06-02
US60/208,481 2000-06-02
US22095100P 2000-07-26 2000-07-26
US60/220,951 2000-07-26
US09/872,383 2001-05-31
US09/872,383 US20010048537A1 (en) 2000-06-02 2001-05-31 Device and method for monitoring signal direction in an optical communications network

Publications (4)

Publication Number Publication Date
WO2001093464A2 WO2001093464A2 (en) 2001-12-06
WO2001093464A8 WO2001093464A8 (en) 2002-03-21
WO2001093464A9 WO2001093464A9 (en) 2002-12-12
WO2001093464A3 true WO2001093464A3 (en) 2003-02-27

Family

ID=27395206

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/017831 WO2001093464A2 (en) 2000-06-02 2001-06-01 Device and method for monitoring signal direction in an optical communications network

Country Status (4)

Country Link
EP (1) EP1312174A2 (en)
AU (1) AU2001292546A1 (en)
CA (1) CA2410897A1 (en)
WO (1) WO2001093464A2 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0652651A1 (en) * 1993-11-04 1995-05-10 Koninklijke KPN N.V. Positionally independent application of an OTDR technique based on correlation in a branched optical fibre network during operation
US5859716A (en) * 1996-01-18 1999-01-12 Northern Telecom Limited Self-stimulation signal detection in an optical transmission system
GB2328571A (en) * 1997-08-21 1999-02-24 Northern Telecom Ltd Monitoring induced counterpropagating signals in optical communications systems

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0652651A1 (en) * 1993-11-04 1995-05-10 Koninklijke KPN N.V. Positionally independent application of an OTDR technique based on correlation in a branched optical fibre network during operation
US5859716A (en) * 1996-01-18 1999-01-12 Northern Telecom Limited Self-stimulation signal detection in an optical transmission system
GB2328571A (en) * 1997-08-21 1999-02-24 Northern Telecom Ltd Monitoring induced counterpropagating signals in optical communications systems

Also Published As

Publication number Publication date
CA2410897A1 (en) 2001-12-06
WO2001093464A2 (en) 2001-12-06
EP1312174A2 (en) 2003-05-21
WO2001093464A9 (en) 2002-12-12
WO2001093464A8 (en) 2002-03-21
AU2001292546A1 (en) 2001-12-11

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