WO2008126080A3 - Optical switches and logic gates employing same - Google Patents

Optical switches and logic gates employing same Download PDF

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Publication number
WO2008126080A3
WO2008126080A3 PCT/IL2008/000494 IL2008000494W WO2008126080A3 WO 2008126080 A3 WO2008126080 A3 WO 2008126080A3 IL 2008000494 W IL2008000494 W IL 2008000494W WO 2008126080 A3 WO2008126080 A3 WO 2008126080A3
Authority
WO
WIPO (PCT)
Prior art keywords
light
piezoelectric element
passageway
logic gates
activation
Prior art date
Application number
PCT/IL2008/000494
Other languages
French (fr)
Other versions
WO2008126080A2 (en
Inventor
Gary Neal Poovey
Original Assignee
Galtronics Ltd.
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
Priority claimed from US11/734,750 external-priority patent/US7606450B2/en
Priority claimed from US11/734,747 external-priority patent/US7532786B2/en
Application filed by Galtronics Ltd. filed Critical Galtronics Ltd.
Priority to EP20080738196 priority Critical patent/EP2137563A4/en
Priority to KR1020097023519A priority patent/KR101487809B1/en
Priority to CA002683730A priority patent/CA2683730A1/en
Priority to CN2008800195110A priority patent/CN101836145B/en
Priority to US12/595,764 priority patent/US8180186B2/en
Priority to JP2010502636A priority patent/JP5721427B2/en
Publication of WO2008126080A2 publication Critical patent/WO2008126080A2/en
Priority to IL201408A priority patent/IL201408A/en
Publication of WO2008126080A3 publication Critical patent/WO2008126080A3/en

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/35—Optical coupling means having switching means
    • G02B6/3564—Mechanical details of the actuation mechanism associated with the moving element or mounting mechanism details
    • G02B6/3568—Mechanical details of the actuation mechanism associated with the moving element or mounting mechanism details characterised by the actuating force
    • G02B6/3578—Piezoelectric force
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/35—Optical coupling means having switching means
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/0128—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on electro-mechanical, magneto-mechanical, elasto-optic effects
    • G02F1/0131—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on electro-mechanical, magneto-mechanical, elasto-optic effects based on photo-elastic effects, e.g. mechanically induced birefringence
    • G02F1/0134—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on electro-mechanical, magneto-mechanical, elasto-optic effects based on photo-elastic effects, e.g. mechanically induced birefringence in optical waveguides
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F3/00—Optical logic elements; Optical bistable devices
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/35—Optical coupling means having switching means
    • G02B6/354—Switching arrangements, i.e. number of input/output ports and interconnection types
    • G02B6/3544—2D constellations, i.e. with switching elements and switched beams located in a plane
    • G02B6/3548—1xN switch, i.e. one input and a selectable single output of N possible outputs
    • G02B6/3552—1x1 switch, e.g. on/off switch
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/35—Optical coupling means having switching means
    • G02B6/3594—Characterised by additional functional means, e.g. means for variably attenuating or branching or means for switching differently polarized beams
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F2203/00—Function characteristic
    • G02F2203/48—Variable attenuator
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/1301—Optical transmission, optical switches

Abstract

An optical switch including a light passageway having a changeable cross-sectional area, an activation light responsive piezoelectric element associated with the light passageway, the activation light responsive piezoelectric element being operative to change its shape in response to activation light impinging thereon and a conductive element operatively associated with the piezoelectric element for enhancing activation light responsiveness thereof, the activation light responsive piezoelectric element being associated with the light passageway and being operative such that changes in the shape of the piezoelectric element cause changes in the changeable cross-sectional area of the light passageway sufficient to govern the passage of light along the light passageway. Logic gates and logic functionality employing an optical switch are also described.
PCT/IL2008/000494 2004-08-30 2008-04-10 Optical switches and logic gates employing same WO2008126080A2 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP20080738196 EP2137563A4 (en) 2007-04-12 2008-04-10 Optical switches and logic gates employing same
KR1020097023519A KR101487809B1 (en) 2007-04-12 2008-04-10 Optical switches and logic gates employing same
CA002683730A CA2683730A1 (en) 2007-04-12 2008-04-10 Optical switches and logic gates employing same
CN2008800195110A CN101836145B (en) 2007-04-12 2008-04-10 Optical switches and logic gates employing same
US12/595,764 US8180186B2 (en) 2004-08-30 2008-04-10 Optical switches and logic gates employing same
JP2010502636A JP5721427B2 (en) 2007-04-12 2008-04-10 Optical switch and logic gate using optical switch
IL201408A IL201408A (en) 2007-04-12 2009-10-11 Optical switches and logic gates employing same

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US91146907P 2007-04-12 2007-04-12
US60/911,469 2007-04-12
US11/734,750 US7606450B2 (en) 2004-08-30 2007-04-12 Light activated optical switch that includes a piezoelectric element and a conductive layer
US11/734,747 2007-04-12
US11/734,747 US7532786B2 (en) 2004-08-30 2007-04-12 Light activated optical switch that includes a piezoelectric element with layers of piezoelectric material having different piezoelectric characteristics
US11/734,750 2007-04-12

Publications (2)

Publication Number Publication Date
WO2008126080A2 WO2008126080A2 (en) 2008-10-23
WO2008126080A3 true WO2008126080A3 (en) 2010-02-25

Family

ID=39864454

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IL2008/000494 WO2008126080A2 (en) 2004-08-30 2008-04-10 Optical switches and logic gates employing same

Country Status (6)

Country Link
EP (1) EP2137563A4 (en)
JP (2) JP5721427B2 (en)
KR (1) KR101487809B1 (en)
CN (1) CN101836145B (en)
CA (1) CA2683730A1 (en)
WO (1) WO2008126080A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015089812A1 (en) * 2013-12-20 2015-06-25 华为技术有限公司 All-optical logic gate

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4632518A (en) * 1984-07-31 1986-12-30 Hughes Aircraft Company Phase insensitive optical logic gate device
US5144375A (en) * 1990-05-10 1992-09-01 At&T Bell Laboratories Sagnac optical logic gate
US5150242A (en) * 1990-08-17 1992-09-22 Fellows William G Integrated optical computing elements for processing and encryption functions employing non-linear organic polymers having photovoltaic and piezoelectric interfaces
US5943453A (en) * 1997-03-14 1999-08-24 The Board Of Trustees Of The Leland Stanford Junior University All fiber polarization splitting switch
US6990281B2 (en) * 2002-08-22 2006-01-24 Prima Luci, Inc. All optical logic gates
US20060045407A1 (en) * 2004-08-30 2006-03-02 Poovey Gary N Bending element light switch
US7072536B2 (en) * 2003-12-11 2006-07-04 Gary Neal Poovey Light triggered light switch

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2504285B1 (en) * 1981-04-15 1986-06-06 Chevron Res DEVICE AND METHOD FOR MODULATING RADIANT ENERGY
US4524294A (en) * 1984-05-07 1985-06-18 The United States Of America As Represented By The Secretary Of The Army Ferroelectric photomechanical actuators
JP2525764B2 (en) * 1985-12-12 1996-08-21 宇部興産株式会社 Optical drive relay
US5050242A (en) * 1990-10-29 1991-09-24 Udell C Leland Hospital gown
JPH0674213A (en) * 1992-08-26 1994-03-15 Mitsubishi Cable Ind Ltd Micro-gripper mechanism
JPH06160736A (en) * 1992-11-16 1994-06-07 Sumitomo Electric Ind Ltd Optical breaker
US5502781A (en) * 1995-01-25 1996-03-26 At&T Corp. Integrated optical devices utilizing magnetostrictively, electrostrictively or photostrictively induced stress
JP3829548B2 (en) * 1999-09-24 2006-10-04 ソニー株式会社 Functional materials and functional elements
JP2004145315A (en) * 2002-10-01 2004-05-20 Canon Inc Optical element and method of modulating optical element
JP2005315955A (en) * 2004-04-27 2005-11-10 Murata Mfg Co Ltd Matrix type light switch

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4632518A (en) * 1984-07-31 1986-12-30 Hughes Aircraft Company Phase insensitive optical logic gate device
US5144375A (en) * 1990-05-10 1992-09-01 At&T Bell Laboratories Sagnac optical logic gate
US5150242A (en) * 1990-08-17 1992-09-22 Fellows William G Integrated optical computing elements for processing and encryption functions employing non-linear organic polymers having photovoltaic and piezoelectric interfaces
US5943453A (en) * 1997-03-14 1999-08-24 The Board Of Trustees Of The Leland Stanford Junior University All fiber polarization splitting switch
US6990281B2 (en) * 2002-08-22 2006-01-24 Prima Luci, Inc. All optical logic gates
US7072536B2 (en) * 2003-12-11 2006-07-04 Gary Neal Poovey Light triggered light switch
US20060045407A1 (en) * 2004-08-30 2006-03-02 Poovey Gary N Bending element light switch

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2137563A4 *

Also Published As

Publication number Publication date
JP2010526322A (en) 2010-07-29
CA2683730A1 (en) 2008-10-23
WO2008126080A2 (en) 2008-10-23
EP2137563A4 (en) 2012-07-11
CN101836145A (en) 2010-09-15
JP2015118380A (en) 2015-06-25
JP5721427B2 (en) 2015-05-20
EP2137563A2 (en) 2009-12-30
CN101836145B (en) 2013-06-12
KR20100016439A (en) 2010-02-12
KR101487809B1 (en) 2015-01-29

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