GB1331228A - Electro-optic apparatus - Google Patents

Electro-optic apparatus

Info

Publication number
GB1331228A
GB1331228A GB1331228DA GB1331228A GB 1331228 A GB1331228 A GB 1331228A GB 1331228D A GB1331228D A GB 1331228DA GB 1331228 A GB1331228 A GB 1331228A
Authority
GB
United Kingdom
Prior art keywords
crystals
crystal
pockels cell
polarizer
optical path
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
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.)
Post Office
Original Assignee
Post Office
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 Post Office filed Critical Post Office
Publication of GB1331228A publication Critical patent/GB1331228A/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
    • G02F1/35—Non-linear optics
    • G02F1/355—Non-linear optics characterised by the materials used
    • G02F1/361—Organic materials
    • G02F1/3611—Organic materials containing Nitrogen
    • G02F1/3612—Heterocycles having N as heteroatom
    • 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
    • G02F1/0009—Materials therefor
    • G02F1/0018—Electro-optical materials
    • 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
    • G02F1/35—Non-linear optics
    • G02F1/355—Non-linear optics characterised by the materials used
    • G02F1/361—Organic materials
    • G02F1/3611—Organic materials containing Nitrogen
    • 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
    • G02F1/35—Non-linear optics
    • G02F1/355—Non-linear optics characterised by the materials used
    • G02F1/361—Organic materials
    • G02F1/3613—Organic materials containing Sulfur
    • G02F1/3614—Heterocycles having S as heteroatom

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
  • Photoreceptors In Electrophotography (AREA)

Abstract

1331228 Modulating light POST OFFICE 19 April 1971 [2 Dec 1969] 58864/69 Heading H4F A Pockel cell comprises a single crystal of a polarizable dipolar organic compound having a non-centrosymmetric crystal structure and an extended # electron system, for example derivatives of benzene, pyridine, azulene, tropone, pyrazole, anthracene, and naphthalene, and including quinones, azo-compounds, carbodiimides, azines, phenylhydrazones, merocyanine dyes, syndrons and analogous heterocycles, some compounds being specifically listed in the Specification. After purification by zone refining, single crystals of the material are formed by vapour sublimation, by pulling an evacuated capsule containing the material from a thermostatically controlled bath, or by a Bridgman technique. As described, two identical rectangular cross-sectioned crystals with faces parallel to the crystal axes, are placed in tandem along an optical path between an analyzer and polarizer, their X axes coinciding with the optical path, and having electrodes on their Z faces. A #/2 plate is placed between the crystals, and identical potentials but of opposite polarity are applied across the crystals. Such an arrangement causes the static birefringence to cancel and gives twice the charge in polarization for a given potential difference. In alternative forms, (a) a single Pockels cell may be used; (b) Pockels cell may be immersed in an optically matched fluid (c) transparent electrodes may be provided for the longitudinal effect (d) one face of the crystal may be provided with a reflecting surface. A light reflector may comprises a polarizer, a Pockels cell and a birefringent crystal.
GB1331228D 1969-12-02 1969-12-02 Electro-optic apparatus Expired GB1331228A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5886469 1969-12-02

Publications (1)

Publication Number Publication Date
GB1331228A true GB1331228A (en) 1973-09-26

Family

ID=10482573

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1331228D Expired GB1331228A (en) 1969-12-02 1969-12-02 Electro-optic apparatus

Country Status (1)

Country Link
GB (1) GB1331228A (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4077699A (en) * 1974-09-24 1978-03-07 The Post Office Optical devices
US4431263A (en) * 1979-06-25 1984-02-14 University Patents, Inc. Novel nonlinear optical materials and processes employing diacetylenes
US4557551A (en) * 1983-09-28 1985-12-10 Andrew Corporation Non-linear optical fiber coupler and a method of making same
WO1989000301A1 (en) * 1987-06-30 1989-01-12 British Telecommunications Public Limited Company Optical second harmonic generation
US4826295A (en) * 1983-11-23 1989-05-02 British Telecommunications Controlled Optical signal absorber apparatus and method using quantum well layer structure
US4961631A (en) * 1988-02-11 1990-10-09 E. I Du Pont De Nemours And Company Nonlinear optical devices from derivatives of stilbene
US4973429A (en) * 1988-02-17 1990-11-27 Ciba-Geigy Corporation Organic materials with non-linear optical properties
US4992202A (en) * 1986-02-04 1991-02-12 Imperial Chemical Industries Plc Non-linear optics
US4992203A (en) * 1986-02-04 1991-02-12 Imperial Chemical Industries Plc Non-linear optics
US5015417A (en) * 1988-02-11 1991-05-14 E. I. Du Pont De Nemours And Company Nonlinear optical devices for derivatives of stilbene and diphenylacetylene
US5368782A (en) * 1987-07-29 1994-11-29 Toray Industries, Inc. Method of operating third-order nonlinear optical element
EP0635750A1 (en) * 1993-02-05 1995-01-25 Sumitomo Electric Industries, Ltd. Third-order nonlinear optical material
DE102016224615A1 (en) 2016-12-09 2018-06-14 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Modulator arrangement and method for modulating light

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4077699A (en) * 1974-09-24 1978-03-07 The Post Office Optical devices
US4431263A (en) * 1979-06-25 1984-02-14 University Patents, Inc. Novel nonlinear optical materials and processes employing diacetylenes
US4557551A (en) * 1983-09-28 1985-12-10 Andrew Corporation Non-linear optical fiber coupler and a method of making same
US4826295A (en) * 1983-11-23 1989-05-02 British Telecommunications Controlled Optical signal absorber apparatus and method using quantum well layer structure
US4992202A (en) * 1986-02-04 1991-02-12 Imperial Chemical Industries Plc Non-linear optics
US4992203A (en) * 1986-02-04 1991-02-12 Imperial Chemical Industries Plc Non-linear optics
EP0299647A1 (en) * 1987-06-30 1989-01-18 BRITISH TELECOMMUNICATIONS public limited company Optical second harmonic generation
WO1989000301A1 (en) * 1987-06-30 1989-01-12 British Telecommunications Public Limited Company Optical second harmonic generation
US5368782A (en) * 1987-07-29 1994-11-29 Toray Industries, Inc. Method of operating third-order nonlinear optical element
US4961631A (en) * 1988-02-11 1990-10-09 E. I Du Pont De Nemours And Company Nonlinear optical devices from derivatives of stilbene
US5015417A (en) * 1988-02-11 1991-05-14 E. I. Du Pont De Nemours And Company Nonlinear optical devices for derivatives of stilbene and diphenylacetylene
US4973429A (en) * 1988-02-17 1990-11-27 Ciba-Geigy Corporation Organic materials with non-linear optical properties
EP0635750A1 (en) * 1993-02-05 1995-01-25 Sumitomo Electric Industries, Ltd. Third-order nonlinear optical material
EP0635750A4 (en) * 1993-02-05 1995-12-13 Sumitomo Electric Industries Third-order nonlinear optical material.
US5679808A (en) * 1993-02-05 1997-10-21 Sumitomo Electric Industries, Ltd. Tertiary non-linear optical material
DE102016224615A1 (en) 2016-12-09 2018-06-14 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Modulator arrangement and method for modulating light
DE102016224615B4 (en) 2016-12-09 2018-09-27 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Modulator arrangement and method for modulating light
US11281016B2 (en) 2016-12-09 2022-03-22 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Modulator assembly and method for modulating light

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Legal Events

Date Code Title Description
PS Patent sealed
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PE20 Patent expired after termination of 20 years