WO2004064259A3 - Fully protected broadcast and select all optical network - Google Patents

Fully protected broadcast and select all optical network Download PDF

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Publication number
WO2004064259A3
WO2004064259A3 PCT/US2004/000260 US2004000260W WO2004064259A3 WO 2004064259 A3 WO2004064259 A3 WO 2004064259A3 US 2004000260 W US2004000260 W US 2004000260W WO 2004064259 A3 WO2004064259 A3 WO 2004064259A3
Authority
WO
WIPO (PCT)
Prior art keywords
fiber
ring
line
optical network
select
Prior art date
Application number
PCT/US2004/000260
Other languages
French (fr)
Other versions
WO2004064259A2 (en
Inventor
Winston Way
Chao Xiang Shi
Original Assignee
Opvista Inc
Winston Way
Chao Xiang Shi
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 Opvista Inc, Winston Way, Chao Xiang Shi filed Critical Opvista Inc
Publication of WO2004064259A2 publication Critical patent/WO2004064259A2/en
Publication of WO2004064259A3 publication Critical patent/WO2004064259A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0287—Protection in WDM systems
    • H04J14/0297—Optical equipment protection
    • 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
    • H04B10/50—Transmitters
    • H04B10/501—Structural aspects
    • H04B10/503—Laser transmitters
    • 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
    • H04B10/50—Transmitters
    • H04B10/501—Structural aspects
    • H04B10/506—Multiwavelength transmitters
    • 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
    • H04B10/50—Transmitters
    • H04B10/564—Power control
    • 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
    • H04J14/0283—WDM ring architectures
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0287—Protection in WDM systems
    • H04J14/0293—Optical channel protection
    • H04J14/0294—Dedicated protection at the optical channel (1+1)
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0287—Protection in WDM systems
    • H04J14/0293—Optical channel protection
    • H04J14/0295—Shared protection at the optical channel (1:1, n:m)
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/42—Loop networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/42—Loop networks
    • H04L12/437—Ring fault isolation or reconfiguration
    • 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

An all optical network (10) for optical signal traffic provides at least a first ring (12) with at least a first clockwise fiber (14), a second counter-clockwise fiber (16) and a plurality of network nodes (18). Each node has at least a WDM transponder (20) that with a line-side transmitter (22) and a client side receiver (24) in a first direction, and a line-side receiver (26) and a client-side transmitter (28) in an opposing second direction. The line-side receiver (26) includes a fixed or a tunable optical wavelength filter (30). At least a first add and a first drop broadband couplers (32 and 34) are positioned on each fiber (14 and 16). Each coupler (32 and 34) has first and second ports for through traffic and a third port for adding or dropping local traffic. The first add and first drop broadband couplers (32 and 34) are configured to minimize a pass-through loss in each fiber (14 and 16). If there are multiple WDM transponders (20), their wavelengths are added to the ring (12) either in series or in parallel. All wavelengths dropped from the ring (12) are selected by each individual WDM transponder (20) in a parallel or serial manner.
PCT/US2004/000260 2003-01-06 2004-01-06 Fully protected broadcast and select all optical network WO2004064259A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/338,088 2003-01-06
US10/338,088 US7499647B2 (en) 2000-05-22 2003-01-06 Fully protected broadcast and select all optical network

Publications (2)

Publication Number Publication Date
WO2004064259A2 WO2004064259A2 (en) 2004-07-29
WO2004064259A3 true WO2004064259A3 (en) 2005-09-15

Family

ID=32710961

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/000260 WO2004064259A2 (en) 2003-01-06 2004-01-06 Fully protected broadcast and select all optical network

Country Status (2)

Country Link
US (1) US7499647B2 (en)
WO (1) WO2004064259A2 (en)

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US20030180047A1 (en) 2003-09-25
US7499647B2 (en) 2009-03-03
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