CA2450152A1 - Method and system for multi-level power management in an optical network - Google Patents

Method and system for multi-level power management in an optical network Download PDF

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Publication number
CA2450152A1
CA2450152A1 CA002450152A CA2450152A CA2450152A1 CA 2450152 A1 CA2450152 A1 CA 2450152A1 CA 002450152 A CA002450152 A CA 002450152A CA 2450152 A CA2450152 A CA 2450152A CA 2450152 A1 CA2450152 A1 CA 2450152A1
Authority
CA
Canada
Prior art keywords
level
power management
channels
powers
network
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.)
Granted
Application number
CA002450152A
Other languages
French (fr)
Other versions
CA2450152C (en
Inventor
Eddie Kai Ho Ng
Michael Joseph Mccloskey
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.)
Nokia Canada Inc
Original Assignee
Tropic Networks 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
Application filed by Tropic Networks Inc filed Critical Tropic Networks Inc
Publication of CA2450152A1 publication Critical patent/CA2450152A1/en
Application granted granted Critical
Publication of CA2450152C publication Critical patent/CA2450152C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H04B10/077—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
    • H04B10/07955—Monitoring or measuring power
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0221—Power control, e.g. to keep the total optical power constant

Abstract

A method and system for multi-level power management in an optical network is provided. They include three levels of power equalization. The first level of power management equalizes the powers of channels in a band of channels. The second level of power management equalizes the average powers of bands of channels on a fiber. The third level of control equalizes the powers of bands of channels on working and protection fibers for a path in the optical network. As a result, this multi-level power management in the network provides a dynamic, automatic method for the network to adjust to changing operating conditions and configurations and to maintain relatively stable network powers. Each level of power management may be implemented jointly or independently, and operates autonomously so that, for example, one modification comprises continuous first level control and only periodic second level control.
CA002450152A 2002-12-24 2003-11-20 Method and system for multi-level power management in an optical network Expired - Fee Related CA2450152C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US43585902P 2002-12-24 2002-12-24
US60/435,859 2002-12-24

Publications (2)

Publication Number Publication Date
CA2450152A1 true CA2450152A1 (en) 2004-06-24
CA2450152C CA2450152C (en) 2009-06-02

Family

ID=32595321

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002450152A Expired - Fee Related CA2450152C (en) 2002-12-24 2003-11-20 Method and system for multi-level power management in an optical network

Country Status (2)

Country Link
US (1) US7289734B2 (en)
CA (1) CA2450152C (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8064771B2 (en) * 2005-06-30 2011-11-22 Infinera Corporation Active control loop for power control of optical channel groups
JP2007274482A (en) * 2006-03-31 2007-10-18 Fujitsu Ltd Optical transmitter
CN101656577B (en) * 2009-09-16 2012-03-28 中兴通讯股份有限公司 Automatic power adjusting system and automatic power adjusting method for optical network system
US8891957B2 (en) * 2011-07-13 2014-11-18 Tyco Electronics Subsea Communications Llc Method and system for fault recovery in an optical network
JP6103097B1 (en) * 2016-03-18 2017-03-29 日本電気株式会社 Optical transmission apparatus and control method thereof

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US20030133713A1 (en) * 2002-01-17 2003-07-17 Ng Eddie Kai Ho Method and system for multi-level power management in an optical network
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Also Published As

Publication number Publication date
US20040120712A1 (en) 2004-06-24
CA2450152C (en) 2009-06-02
US7289734B2 (en) 2007-10-30

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Effective date: 20161121