[go: up one dir, main page]

GB2198255B - Optical switch - Google Patents

Optical switch

Info

Publication number
GB2198255B
GB2198255B GB8726403A GB8726403A GB2198255B GB 2198255 B GB2198255 B GB 2198255B GB 8726403 A GB8726403 A GB 8726403A GB 8726403 A GB8726403 A GB 8726403A GB 2198255 B GB2198255 B GB 2198255B
Authority
GB
United Kingdom
Prior art keywords
optical switch
switch
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.)
Expired - Fee Related
Application number
GB8726403A
Other versions
GB2198255A (en
GB8726403D0 (en
Inventor
Jeffrey David Skinner
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Publication of GB8726403D0 publication Critical patent/GB8726403D0/en
Publication of GB2198255A publication Critical patent/GB2198255A/en
Application granted granted Critical
Publication of GB2198255B publication Critical patent/GB2198255B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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 
    • G02F1/13—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 liquid crystals, e.g. single liquid crystal display cells
    • G02F1/1326—Liquid crystal optical waveguides or liquid crystal cells specially adapted for gating or modulating between 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
    • 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
    • G02F1/29—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 position or the direction of light beams, i.e. deflection
    • G02F1/31—Digital deflection, i.e. optical switching
    • G02F1/315—Digital deflection, i.e. optical switching based on the use of controlled internal reflection
    • 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 
    • G02F1/13—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 liquid crystals, e.g. single liquid crystal display cells
    • G02F1/137—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 liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
    • G02F1/139—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 liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent
    • G02F1/1392—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 liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent using a field-induced sign-reversal of the dielectric anisotropy

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Liquid Crystal (AREA)
GB8726403A 1986-11-12 1987-11-11 Optical switch Expired - Fee Related GB2198255B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB868626966A GB8626966D0 (en) 1986-11-12 1986-11-12 Optical switch

Publications (3)

Publication Number Publication Date
GB8726403D0 GB8726403D0 (en) 1987-12-16
GB2198255A GB2198255A (en) 1988-06-08
GB2198255B true GB2198255B (en) 1990-05-23

Family

ID=10607178

Family Applications (2)

Application Number Title Priority Date Filing Date
GB868626966A Pending GB8626966D0 (en) 1986-11-12 1986-11-12 Optical switch
GB8726403A Expired - Fee Related GB2198255B (en) 1986-11-12 1987-11-11 Optical switch

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB868626966A Pending GB8626966D0 (en) 1986-11-12 1986-11-12 Optical switch

Country Status (1)

Country Link
GB (2) GB8626966D0 (en)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1370694A (en) * 1971-09-06 1974-10-16 Rca Corp Circuits for energising liquid crystal devices
GB1410161A (en) * 1973-01-12 1975-10-15 Philips Electronic Associated Apparatus comprinsing an electro-optical device comprising a layer of nematic liquid crystal material
GB2010560A (en) * 1977-11-22 1979-06-27 Suwa Seikosha Kk Liquid crystal display arrangements
EP0015139A1 (en) * 1979-02-21 1980-09-03 Sperry Corporation Electro-optical switching matrix
GB2042202A (en) * 1979-01-24 1980-09-17 Secr Defence Operating a liquid crystal cell
EP0029737A1 (en) * 1979-11-26 1981-06-03 Sperry Corporation Electro-optical switching devices
EP0080343A1 (en) * 1981-11-19 1983-06-01 Sperry Corporation Optical bypass switch
GB2164169A (en) * 1984-08-30 1986-03-12 Casio Computer Co Ltd Controlling liquid crystal light shutters
GB2183056A (en) * 1985-11-05 1987-05-28 Int Standard Electric Corp Liquid-crystal optical switching device
GB2187860A (en) * 1986-03-12 1987-09-16 Gen Electric Plc Reduced crosstalk optical switch

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1370694A (en) * 1971-09-06 1974-10-16 Rca Corp Circuits for energising liquid crystal devices
GB1410161A (en) * 1973-01-12 1975-10-15 Philips Electronic Associated Apparatus comprinsing an electro-optical device comprising a layer of nematic liquid crystal material
GB2010560A (en) * 1977-11-22 1979-06-27 Suwa Seikosha Kk Liquid crystal display arrangements
GB2042202A (en) * 1979-01-24 1980-09-17 Secr Defence Operating a liquid crystal cell
EP0015139A1 (en) * 1979-02-21 1980-09-03 Sperry Corporation Electro-optical switching matrix
EP0029737A1 (en) * 1979-11-26 1981-06-03 Sperry Corporation Electro-optical switching devices
EP0080343A1 (en) * 1981-11-19 1983-06-01 Sperry Corporation Optical bypass switch
GB2164169A (en) * 1984-08-30 1986-03-12 Casio Computer Co Ltd Controlling liquid crystal light shutters
GB2183056A (en) * 1985-11-05 1987-05-28 Int Standard Electric Corp Liquid-crystal optical switching device
GB2187860A (en) * 1986-03-12 1987-09-16 Gen Electric Plc Reduced crosstalk optical switch

Also Published As

Publication number Publication date
GB2198255A (en) 1988-06-08
GB8626966D0 (en) 1986-12-10
GB8726403D0 (en) 1987-12-16

Similar Documents

Publication Publication Date Title
GB8713043D0 (en) Optical switch
GB2177810B (en) Optical switch
IL90135A0 (en) Optical switch
GB2191357B (en) Optical switching
EP0233011A3 (en) Optical switch
GB8626152D0 (en) Optical switch arrays
EP0276115A3 (en) Optical switch
GB2187861B (en) Optical switch structure
GB8618688D0 (en) Optical switch
GB2185588B (en) Optical switching
GB2189038B (en) Optical switching
GB2211956B (en) Optical switch
GB8716509D0 (en) Integrated optical switch
GB2174212B (en) Optical switch
GB8600657D0 (en) Optical light switch
GB8626451D0 (en) Optical switch
GB8606153D0 (en) Optical switch
GB8603893D0 (en) Optical fibre switch
GB2194701B (en) Optical switch
GB2198255B (en) Optical switch
GB2185589B (en) Optical switching arrangement
GB8624001D0 (en) Optical switch
GB8725945D0 (en) Optical switch
GB8719478D0 (en) Optical switch
GB2192731B (en) Bistable optical switch

Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee