GB1494150A - Optical switch arrangement - Google Patents

Optical switch arrangement

Info

Publication number
GB1494150A
GB1494150A GB5039075A GB5039075A GB1494150A GB 1494150 A GB1494150 A GB 1494150A GB 5039075 A GB5039075 A GB 5039075A GB 5039075 A GB5039075 A GB 5039075A GB 1494150 A GB1494150 A GB 1494150A
Authority
GB
United Kingdom
Prior art keywords
chamber
liquid
vapour
guide
light
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
Application number
GB5039075A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables 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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB5039075A priority Critical patent/GB1494150A/en
Priority to CA266,991A priority patent/CA1076857A/en
Publication of GB1494150A publication Critical patent/GB1494150A/en
Expired 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
    • G02F1/29—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
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/004—Optical devices or arrangements for the control of light using movable or deformable optical elements based on a displacement or a deformation of a fluid
    • 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
    • G02B6/3538—Optical coupling means having switching means based on displacement or deformation of a liquid
    • 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
    • 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
    • G02B6/3564—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
    • G02B6/3576—Temperature or heat actuation
    • 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
    • G02B6/3586—Control or adjustment details, e.g. calibrating
    • G02B6/359—Control or adjustment details, e.g. calibrating of the position of the moving element itself during switching, i.e. without monitoring the switched beams

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Mechanical Light Control Or Optical Switches (AREA)

Abstract

1494150 Switchable light guide STANDARD TELEPHONES & CABLES Ltd 9 Dec 1975 50390/75 Heading G23 The guide 11 has a parallel-sided chamber 14 formed therein and fillable with a substance either in liquid or vapour form. The refractive index of the liquid is similar to that of the guide and allows light to pass. The vapour has an r.i. approximating to unity and prevents passage of the light. By suitable dimensioning of the chamber it can form an etalon filter. Side guides can be arranged adjacent the (or each) chamber to receive light deflected therefrom in the vapour-filled state. The liquid can be vapourized/condensed by heat or mechanically moved in and out of the chamber.
GB5039075A 1975-12-09 1975-12-09 Optical switch arrangement Expired GB1494150A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB5039075A GB1494150A (en) 1975-12-09 1975-12-09 Optical switch arrangement
CA266,991A CA1076857A (en) 1975-12-09 1976-12-02 Optical fiber light transmission switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5039075A GB1494150A (en) 1975-12-09 1975-12-09 Optical switch arrangement

Publications (1)

Publication Number Publication Date
GB1494150A true GB1494150A (en) 1977-12-07

Family

ID=10455744

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5039075A Expired GB1494150A (en) 1975-12-09 1975-12-09 Optical switch arrangement

Country Status (2)

Country Link
CA (1) CA1076857A (en)
GB (1) GB1494150A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS566203A (en) * 1979-06-28 1981-01-22 Nippon Telegr & Teleph Corp <Ntt> Photoswitch
FR2553907A1 (en) * 1983-10-21 1985-04-26 Thomson Csf OPTICAL MODULATOR
EP1130443A2 (en) * 2000-02-22 2001-09-05 Agilent Technologies Inc. a Delaware Corporation System and method for providing temperature control for a thermally activated optical switch using constant total power
US6345132B1 (en) 1997-03-20 2002-02-05 Institut Fur Mikrotechnik Mainz Gmbh Optical switching element and switching arrangement
US6404941B1 (en) 1997-03-20 2002-06-11 Institut Fur Mikrotechnik Mainz Gmbh Optical multiple circuit breaker

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS566203A (en) * 1979-06-28 1981-01-22 Nippon Telegr & Teleph Corp <Ntt> Photoswitch
FR2553907A1 (en) * 1983-10-21 1985-04-26 Thomson Csf OPTICAL MODULATOR
EP0141714A2 (en) * 1983-10-21 1985-05-15 Thomson-Csf Optical modulator
EP0141714A3 (en) * 1983-10-21 1985-06-19 Thomson-Csf Optical modulator
US4701021A (en) * 1983-10-21 1987-10-20 Thomson-Csf Optical modulator
US6345132B1 (en) 1997-03-20 2002-02-05 Institut Fur Mikrotechnik Mainz Gmbh Optical switching element and switching arrangement
US6404941B1 (en) 1997-03-20 2002-06-11 Institut Fur Mikrotechnik Mainz Gmbh Optical multiple circuit breaker
EP1130443A2 (en) * 2000-02-22 2001-09-05 Agilent Technologies Inc. a Delaware Corporation System and method for providing temperature control for a thermally activated optical switch using constant total power
EP1130443A3 (en) * 2000-02-22 2002-06-12 Agilent Technologies, Inc. (a Delaware corporation) System and method for providing temperature control for a thermally activated optical switch using constant total power

Also Published As

Publication number Publication date
CA1076857A (en) 1980-05-06

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Legal Events

Date Code Title Description
PS Patent sealed
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee