[go: up one dir, main page]

AU2001240645A1 - Optical communication system with two parallel transmission paths - Google Patents

Optical communication system with two parallel transmission paths

Info

Publication number
AU2001240645A1
AU2001240645A1 AU2001240645A AU4064501A AU2001240645A1 AU 2001240645 A1 AU2001240645 A1 AU 2001240645A1 AU 2001240645 A AU2001240645 A AU 2001240645A AU 4064501 A AU4064501 A AU 4064501A AU 2001240645 A1 AU2001240645 A1 AU 2001240645A1
Authority
AU
Australia
Prior art keywords
path
paths
node
signal power
optical
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
AU2001240645A
Inventor
Ulf A. Persson
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 AU2001240645A1 publication Critical patent/AU2001240645A1/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
    • H04B10/27—Arrangements for networking
    • 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
    • H04B10/27—Arrangements for networking
    • H04B10/275—Ring-type networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Computing Systems (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)
  • Small-Scale Networks (AREA)

Abstract

In an optical communication link a first node (30) with transmission means (50) and a second node with receiving means (40) are connected by at least two optical fibre transmission paths (100,200). One path serves as the working path, while the remaining path or paths serve as protection paths. The transmission means in the first node is connected to an optical signal power splitter (60) which couples the signal power from the transmitting means unequally into the different transmission paths. This uneven coupling of signal power imposes greater losses in one path than in the other or others. By arranging the splitter to couple a higher proportion of the transmitted optical power into the path that has the highest inherent losses the additional loss imposed on this path is reduced. Thus the maximum path loss between any two nodes can be minimised. This in turn means that the link length and also the size of the network is virtually unaffected by using the same transmitter. <IMAGE>
AU2001240645A 2000-04-05 2001-02-21 Optical communication system with two parallel transmission paths Abandoned AU2001240645A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP00107415A EP1143646A1 (en) 2000-04-05 2000-04-05 Optical communication system with two parallel transmission paths
EP00107415 2000-04-05
PCT/EP2001/001975 WO2001078268A1 (en) 2000-04-05 2001-02-21 Optical communication system with two parallel transmission paths

Publications (1)

Publication Number Publication Date
AU2001240645A1 true AU2001240645A1 (en) 2001-10-23

Family

ID=8168386

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001240645A Abandoned AU2001240645A1 (en) 2000-04-05 2001-02-21 Optical communication system with two parallel transmission paths

Country Status (6)

Country Link
US (1) US7450843B2 (en)
EP (2) EP1143646A1 (en)
AT (1) ATE270477T1 (en)
AU (1) AU2001240645A1 (en)
DE (1) DE60104100T2 (en)
WO (1) WO2001078268A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030189897A1 (en) * 2002-04-09 2003-10-09 Lucent Technologies Inc. Dual line monitoring of 1‘protection with auto-switch
US7343096B1 (en) * 2003-06-18 2008-03-11 Ciena Corporation Method and apparatus for in-service upgrading of OADM to wavelength selective switch of higher degree
US7289728B2 (en) * 2004-03-11 2007-10-30 General Instrument Corporation Use of variable ratio couplers for network protection and recovery
JP4709764B2 (en) * 2004-09-17 2011-06-22 富士通株式会社 Optical add / drop device
IN2013MU01980A (en) * 2013-06-10 2015-05-29 Indian Inst Technology Bombay
US9960878B2 (en) * 2013-10-01 2018-05-01 Indian Institute Of Technology Bombay Scalable ultra dense hypergraph network for data centers
US12176953B2 (en) 2021-10-29 2024-12-24 Corning Research & Development Corporation Fiber optic networks, optical network units and methods for configuring split ratios of variable ratio couplers within optical network units

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3069411B2 (en) * 1991-09-04 2000-07-24 科学技術振興事業団 Waveguide type asymmetric directional optical coupler
US5253104A (en) * 1992-09-15 1993-10-12 At&T Bell Laboratories Balanced optical amplifier
US5396357A (en) * 1994-01-25 1995-03-07 Honeywell Inc. Fault tolerant optical cross-channel data link
US5901260A (en) * 1997-04-01 1999-05-04 Lockheed Martin Corporation Optical interface device
SE509807C2 (en) * 1997-05-15 1999-03-08 Ericsson Telefon Ab L M Device at add / drop node in a path length multiplexed optical communication system.
JPH11275028A (en) * 1998-03-20 1999-10-08 Fujitsu Ltd Optical communication system
SE520876C2 (en) * 1998-06-10 2003-09-09 Ericsson Telefon Ab L M ADD / Drpo node for an optical WDM network that has traffic only between neighboring nodes
US6359728B1 (en) * 1998-09-22 2002-03-19 Pirelli Cavi E Sistemi S.P.A. Pump device for pumping an active fiber of an optical amplifier and corresponding optical amplifier
USH2075H1 (en) * 1998-10-13 2003-08-05 At&T Corp. Restorable architectures for fiber-based broadband local access networks
US6947670B1 (en) * 1999-06-30 2005-09-20 Lucent Technologies Inc. Optical add/drop arrangement for ring networks employing wavelength division multiplexing
US6242484B1 (en) 1999-07-06 2001-06-05 Paraquest, Inc. Hypoestoxides, derivatives and agonists thereof for use of antiparasitic agents
US6760151B1 (en) * 2000-04-27 2004-07-06 Jds Uniphase Corporation Depolarized semiconductor laser sources

Also Published As

Publication number Publication date
US7450843B2 (en) 2008-11-11
DE60104100T2 (en) 2005-08-25
EP1143646A1 (en) 2001-10-10
EP1269664A1 (en) 2003-01-02
US20030156845A1 (en) 2003-08-21
DE60104100D1 (en) 2004-08-05
WO2001078268A1 (en) 2001-10-18
EP1269664B1 (en) 2004-06-30
ATE270477T1 (en) 2004-07-15

Similar Documents

Publication Publication Date Title
WO2000016489A3 (en) Wireless optical communications without electronics
ATE121884T1 (en) TRANSMISSION DEVICE WITH AN OPTICAL TRANSMISSION LINE.
EP1083446A4 (en) Optical transmission line, negative dispersion optical fiber used for the optical transmission line, and optical transmission system comprising optical transmission line
CA2014552A1 (en) Optical repeater and optical network using the same
EP0476566A3 (en) Optical communication systems and optical nodes for use therein
EP1451953B1 (en) An interface device for a fiberoptic communication network and methods of using such a device
WO2001064010A3 (en) Optical amplifier and optical transmission system
AU2001240645A1 (en) Optical communication system with two parallel transmission paths
AU641225B2 (en) Optical communication system with fibre optic amplifier
WO1998045974A3 (en) Access network for transmitting optical signals
Cai et al. Demonstration of photonic packet-switched ring network with optically transparent nodes
WO1999041857A3 (en) Optical telecommunications network
CA2272786A1 (en) Low-latency high-bandwidth tdm-wdm network architecture
EP1278316A4 (en) DISPERSION COMPENSATION DEVICE
WO2003021823A3 (en) Ring network made using a dual optical data bus
WO2006039184A3 (en) Fiber optic communication assembly
WO2005054908A3 (en) Undersea optical transmission system employing raman gain to mitigate shallow water repair penalties
EP0874482A3 (en) Arrangement for transmitting and receiving optical signals
ATE135863T1 (en) OPTICAL TRANSMIT AND RECEIVE SYSTEM WITH OPTICAL CIRCULATION
JPH03154442A (en) Optical communication line adapter
KR900002586A (en) Optical communication network
KR19980075310A (en) Bidirectional Fiber Optic Amplifier Using Single Active Fiber
CA2282882A1 (en) Serial transmission path switching system
CN211293366U (en) Mode conversion equipment for single-mode optical fiber and multimode optical fiber
JPH11340953A5 (en)