CA2096965A1 - Method and arrangement for optical switching - Google Patents

Method and arrangement for optical switching

Info

Publication number
CA2096965A1
CA2096965A1 CA002096965A CA2096965A CA2096965A1 CA 2096965 A1 CA2096965 A1 CA 2096965A1 CA 002096965 A CA002096965 A CA 002096965A CA 2096965 A CA2096965 A CA 2096965A CA 2096965 A1 CA2096965 A1 CA 2096965A1
Authority
CA
Canada
Prior art keywords
optical
switch
tunable
lambda
optical switching
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
CA002096965A
Other languages
French (fr)
Other versions
CA2096965C (en
Inventor
Sonny Johansson
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
Individual
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 Individual filed Critical Individual
Publication of CA2096965A1 publication Critical patent/CA2096965A1/en
Application granted granted Critical
Publication of CA2096965C publication Critical patent/CA2096965C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0005—Switch and router aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0005—Switch and router aspects
    • H04Q2011/0007—Construction
    • H04Q2011/0009—Construction using wavelength filters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0005—Switch and router aspects
    • H04Q2011/0007—Construction
    • H04Q2011/0015—Construction using splitting combining
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0005—Switch and router aspects
    • H04Q2011/0007—Construction
    • H04Q2011/0024—Construction using space switching
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0005—Switch and router aspects
    • H04Q2011/0037—Operation
    • H04Q2011/0049—Crosstalk reduction; Noise; Power budget

Abstract

The present invention relates to an optical switch by means of which wavelength multiplexed optical signals (.lambda. i-.lambda. n) can be switched in an optically uninterrupted fashion through the switch. The switch is transparent to the bit rate and code format of the optical signals and comprises groups of a number (n) of tunable optical wavelength filters (39A1-39An...39n1-39nN), preferably tunable laser amplifiers.

Control means control the setting of the tunable wavelength filters as well as the settings of optical switching elements (45A-45N) so as to prevent two identical wavelengths from appearing simultaneously at the input and output links.
CA002096965A 1990-12-07 1991-11-20 Method and arrangement for optical switching Expired - Lifetime CA2096965C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9003914A SE469149B (en) 1990-12-07 1990-12-07 OPTICAL SELECTOR, OPTICAL CROSS COUPLER, AND MOVE TO RETURN GROUPS OF OPTICAL SIGNALS
SE9003914-0 1990-12-07
PCT/SE1991/000787 WO1992010770A1 (en) 1990-12-07 1991-11-20 A method and arrangement for optical switching

Publications (2)

Publication Number Publication Date
CA2096965A1 true CA2096965A1 (en) 1992-06-08
CA2096965C CA2096965C (en) 2002-02-05

Family

ID=20381131

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002096965A Expired - Lifetime CA2096965C (en) 1990-12-07 1991-11-20 Method and arrangement for optical switching

Country Status (7)

Country Link
US (1) US5450224A (en)
EP (1) EP0560824B1 (en)
JP (1) JP3164369B2 (en)
CA (1) CA2096965C (en)
DE (1) DE69131668T2 (en)
SE (1) SE469149B (en)
WO (1) WO1992010770A1 (en)

Families Citing this family (38)

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AU669002B2 (en) * 1992-09-14 1996-05-23 British Telecommunications Public Limited Company Distributive communications network
US5485297A (en) * 1992-10-09 1996-01-16 Alcatel N.V. Optical switching matrix
US5515194A (en) * 1993-05-28 1996-05-07 Interdigital Technology Corporation Optical interconnect for high speed processors
US6373605B1 (en) 1996-05-02 2002-04-16 Interdigital Technology Corporation Optical interconnect for high speed processor
US5500908A (en) * 1994-04-14 1996-03-19 U.S. Philips Corporation Optical switch and transmitter and receiver for a multiplex transmission system including such a switch
SE514658C2 (en) * 1994-12-21 2001-03-26 Ericsson Telefon Ab L M Node Architecture for Application of Optical Optimization (OADM)
JPH0918420A (en) * 1995-06-30 1997-01-17 Fujitsu Ltd Optical transmission line switching device
US5943150A (en) * 1996-09-30 1999-08-24 Regents Of The University Of California Massively parallel processor networks with optical express channels
JPH10164022A (en) * 1996-12-04 1998-06-19 Nec Corp Submarine branching device
US6271949B1 (en) * 1996-12-18 2001-08-07 Nec Corporation Optical communication system using wavelength-division multiplexed light
US5959767A (en) * 1996-12-31 1999-09-28 Lucent Technologies Loss-less optical cross-connect
JP3139540B2 (en) * 1997-01-07 2001-03-05 日本電気株式会社 Optical switch network
JP3481442B2 (en) * 1997-12-22 2003-12-22 日本電気株式会社 Optical network
US6058227A (en) * 1998-01-29 2000-05-02 Trw Inc. Method and apparatus for an opto-electronic circuit switch
JP3425861B2 (en) * 1998-02-20 2003-07-14 富士通株式会社 Optical switch
JPH11275614A (en) * 1998-03-26 1999-10-08 Nec Corp Photo switching device
US6584102B1 (en) * 1998-12-21 2003-06-24 At&T Corp. Communication network apparatus and method
JP2001016625A (en) * 1999-01-20 2001-01-19 Fujitsu Ltd Optical cross connector and optical network
EP1054572A3 (en) * 1999-04-27 2007-04-25 Fujitsu Limited Optical cross connect apparatus and optical network
US6549313B1 (en) * 1999-09-21 2003-04-15 Lucent Technologies Inc. Broadbrand electronic N×N cross-connect switch using tunable lasers
US6282336B1 (en) * 1999-09-24 2001-08-28 Light Bytes, Inc. High speed fiber-optic switch
US6532317B2 (en) 2000-04-17 2003-03-11 Polyoptic Technologies, Inc. Optical circuit board
US6344912B1 (en) * 2000-05-26 2002-02-05 Versatile Optical Networks Hybrid and scalable opto-electronic processing in a wavelength-division multiplexed system
WO2001093481A1 (en) * 2000-05-26 2001-12-06 Versatile Optical Networks Hybrid and scalable opto-electronic processing in a wavelength-division multiplexed system
JP3744343B2 (en) * 2000-11-08 2006-02-08 日本電気株式会社 Optical cross-connect device
AUPR236500A0 (en) * 2000-12-29 2001-01-25 Royal Melbourne Institute Of Technology A scalable data processing system
US6829401B2 (en) * 2002-04-30 2004-12-07 Lucent Technologies Inc. Parallelization of optical switch fabrics
US7194206B2 (en) * 2002-05-15 2007-03-20 Altera Corporation Variable-density optical cross-connect architectures and upgrades
TW575747B (en) * 2002-06-07 2004-02-11 Delta Electronics Inc Waveband-selective optical switch
US7266294B2 (en) * 2003-12-02 2007-09-04 Fujitsu Limited Coupler-based optical cross-connect
US6959128B2 (en) * 2003-12-02 2005-10-25 Fujitsu Limited Coupler-based optical cross-connect having a regeneration module
JP4677195B2 (en) * 2004-03-22 2011-04-27 富士通株式会社 Optical network system and optical multiplexer / demultiplexer
US7903973B1 (en) 2005-12-23 2011-03-08 Lockheed Martin Corporation Dynamic temporal duration optical transmission privacy
US7792427B1 (en) 2006-01-30 2010-09-07 Lockheed Martin Corporation Optical code division multiple access data storage and retrieval
US7991288B1 (en) * 2006-02-07 2011-08-02 Lockheed Martin Corporation Optical code division multiple access data storage encryption and retrieval
KR100825747B1 (en) * 2006-11-17 2008-04-29 한국전자통신연구원 Optical transmission node for mesh-type wdm optical network
US8391713B2 (en) * 2009-10-16 2013-03-05 Verizon Patent And Licensing, Inc. Testing optical networks
US20160301495A1 (en) * 2015-04-08 2016-10-13 Nec Laboratories America, Inc. Power Efficient Multi-Degree ROADM Using Variable Optical Splitter

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0636621B2 (en) * 1986-10-15 1994-05-11 日本電気株式会社 Optical switch
JP2527553B2 (en) * 1987-03-10 1996-08-28 富士通株式会社 Optical multiple switching equipment
DE3853935T2 (en) * 1987-09-30 1995-10-12 Nec Corp Time and wavelength division multiplexed switching system.

Also Published As

Publication number Publication date
SE469149B (en) 1993-05-17
DE69131668T2 (en) 2000-01-13
SE9003914L (en) 1992-06-08
SE9003914D0 (en) 1990-12-07
WO1992010770A1 (en) 1992-06-25
DE69131668D1 (en) 1999-11-04
EP0560824B1 (en) 1999-09-29
EP0560824A1 (en) 1993-09-22
US5450224A (en) 1995-09-12
JP3164369B2 (en) 2001-05-08
CA2096965C (en) 2002-02-05
JPH06503432A (en) 1994-04-14

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