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AU2001222777A1 - Optical protection system for liquid crystal switches - Google Patents

Optical protection system for liquid crystal switches

Info

Publication number
AU2001222777A1
AU2001222777A1 AU2001222777A AU2277701A AU2001222777A1 AU 2001222777 A1 AU2001222777 A1 AU 2001222777A1 AU 2001222777 A AU2001222777 A AU 2001222777A AU 2277701 A AU2277701 A AU 2277701A AU 2001222777 A1 AU2001222777 A1 AU 2001222777A1
Authority
AU
Australia
Prior art keywords
liquid crystal
protection system
optical protection
crystal switches
switches
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
AU2001222777A
Inventor
David F. Gahan
James M. Harris
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.)
Corning Inc
Original Assignee
Corning 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 Corning Inc filed Critical Corning Inc
Publication of AU2001222777A1 publication Critical patent/AU2001222777A1/en
Abandoned 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
    • H04Q11/0062—Network aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/22—Arrangements for detecting or preventing errors in the information received using redundant apparatus to increase reliability
    • 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
    • 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
    • H04J14/0297—Optical equipment protection
    • 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
    • H04Q2011/0039—Electrical control
    • 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
    • H04Q2011/0043—Fault tolerance
    • 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
    • H04Q11/0062—Network aspects
    • H04Q2011/0079—Operation or maintenance aspects
    • H04Q2011/0081—Fault tolerance; Redundancy; Recovery; Reconfigurability

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Liquid Crystal (AREA)
  • Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
AU2001222777A 2000-01-25 2000-12-18 Optical protection system for liquid crystal switches Abandoned AU2001222777A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09491052 2000-01-25
US09/491,052 US6323974B1 (en) 2000-01-25 2000-01-25 Optical protection system for liquid crystal switches
PCT/US2000/034429 WO2001056211A1 (en) 2000-01-25 2000-12-18 Optical protection system for liquid crystal switches

Publications (1)

Publication Number Publication Date
AU2001222777A1 true AU2001222777A1 (en) 2001-08-07

Family

ID=23950592

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001222777A Abandoned AU2001222777A1 (en) 2000-01-25 2000-12-18 Optical protection system for liquid crystal switches

Country Status (4)

Country Link
US (1) US6323974B1 (en)
AU (1) AU2001222777A1 (en)
TW (1) TW522676B (en)
WO (1) WO2001056211A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6563979B2 (en) * 2001-06-22 2003-05-13 Dorsal Networks, Inc. Automatically switched redundant switch configurations
US6943768B2 (en) * 2003-02-21 2005-09-13 Xtellus Inc. Thermal control system for liquid crystal cell
US7009680B2 (en) * 2003-06-02 2006-03-07 Xtellus Inc. Narrow band tunable filter with integrated detector
US20060007386A1 (en) * 2003-02-21 2006-01-12 Extellus Usa Flat top tunable filter with integrated detector
US7355671B2 (en) * 2003-02-21 2008-04-08 Xtellus Inc. Fabrication method for liquid crystal cell
US7352428B2 (en) * 2003-02-21 2008-04-01 Xtellus Inc. Liquid crystal cell platform
JP4638754B2 (en) * 2005-03-18 2011-02-23 富士通株式会社 Optical device and optical cross-connect device
FR2906045B1 (en) * 2006-09-20 2008-10-31 Alcatel Sa CONTROL METHOD FOR SHARED PROTECTION MODULE AND OPTICAL WAVE LENGTH PROCESSING DEVICE
TW200827797A (en) * 2006-12-20 2008-07-01 Inventec Multimedia & Telecom Switching device of light-beam channel of optical fiber network
US8929201B2 (en) * 2011-09-22 2015-01-06 Electronics And Telecommunications Research Institute Method and apparatus of performing protection switching on networks
TWI505654B (en) * 2013-06-17 2015-10-21 Univ Nat Taipei Technology Optical network system

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5003531A (en) * 1989-08-11 1991-03-26 Infotron Systems Corporation Survivable network using reverse protection ring
US5050164A (en) * 1989-10-31 1991-09-17 Bell Communications Research, Inc. Optical customer premises network
CA2054443C (en) * 1990-10-30 1995-11-07 Kazuo Yamane Switching system of optical transmission lines for protecting from trouble
AU1234092A (en) * 1990-12-17 1992-07-22 Aster Corporation Optical communication monitoring and control
US5594581A (en) * 1993-12-29 1997-01-14 Lucent Technologies Inc. Low loss optical transmission/monitoring path selection in redundant equipment terminals
DE69532939T2 (en) * 1994-07-18 2005-06-16 Nippon Telegraph And Telephone Corp. A trouble-free path switching arrangement and method
US5838924A (en) * 1996-08-06 1998-11-17 Lucent Technologies Inc Asynchronous transfer mode (ATM) connection protection switching apparatus and method
US5889610A (en) * 1996-12-31 1999-03-30 Lucent Technologies Inc. Optical protection switching system
US6075629A (en) 1998-01-27 2000-06-13 Lucent Technologies Inc. Optical protection switch employing an interference filter

Also Published As

Publication number Publication date
WO2001056211A1 (en) 2001-08-02
TW522676B (en) 2003-03-01
US6323974B1 (en) 2001-11-27

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