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CA2088372C - Filtre etalon a cristal liquide accordable - Google Patents

Filtre etalon a cristal liquide accordable

Info

Publication number
CA2088372C
CA2088372C CA002088372A CA2088372A CA2088372C CA 2088372 C CA2088372 C CA 2088372C CA 002088372 A CA002088372 A CA 002088372A CA 2088372 A CA2088372 A CA 2088372A CA 2088372 C CA2088372 C CA 2088372C
Authority
CA
Canada
Prior art keywords
liquid crystal
filter
polarization
alignment
liquid
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
CA002088372A
Other languages
English (en)
Other versions
CA2088372A1 (fr
Inventor
Jayantilal Shamjibhai Patel
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.)
Iconectiv LLC
Original Assignee
Bell Communications Research 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
Priority claimed from US07/577,220 external-priority patent/US5068749A/en
Priority claimed from US07/598,476 external-priority patent/US5150236A/en
Priority claimed from US07/677,769 external-priority patent/US5111321A/en
Application filed by Bell Communications Research Inc filed Critical Bell Communications Research Inc
Publication of CA2088372A1 publication Critical patent/CA2088372A1/fr
Application granted granted Critical
Publication of CA2088372C publication Critical patent/CA2088372C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/25—Arrangements specific to fibre transmission
    • 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 
    • G02F1/21—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  by interference
    • G02F1/216—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  by interference using liquid crystals, e.g. liquid crystal Fabry-Perot filters
    • 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
    • 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 
    • G02F1/21—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  by interference
    • G02F1/213—Fabry-Perot type
    • 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
    • G02F2203/05—Function characteristic wavelength dependent
    • G02F2203/055—Function characteristic wavelength dependent wavelength filtering
    • 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
    • G02F2203/06—Polarisation independent

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Liquid Crystal (AREA)
  • Spectrometry And Color Measurement (AREA)

Abstract

Filtre étalon à cristaux liquides accordable comprenant deux miroirs diélectriques à empilage (18, 20) qui définissent une cavité optique. Ladite cavité est remplie de cristaux liquides (26). Des électrodes (14, 16) disposées sur les parties extérieures des miroirs appliquent un champ électrique aux cristaux liquides, ce qui change leur indice de réfraction et par conséquent leur focale. La bande passante optique du filtre peut ainsi être modifiée électriquement dans une structure robuste, compacte, de faible puissance et peu coûteuse.
CA002088372A 1990-08-31 1991-08-07 Filtre etalon a cristal liquide accordable Expired - Fee Related CA2088372C (fr)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US07/577,220 US5068749A (en) 1990-08-31 1990-08-31 Electronically tunable polarization-independent liquid crystal optical filter
US577,220 1990-08-31
US598,476 1990-10-16
US07/598,476 US5150236A (en) 1990-08-31 1990-10-16 Tunable liquid crystal etalon filter
US677,769 1991-03-29
US07/677,769 US5111321A (en) 1990-10-16 1991-03-29 Dual-polarization liquid-crystal etalon filter
PCT/US1991/005609 WO1992004653A1 (fr) 1990-08-31 1991-08-07 Filtre etalon a cristaux liquides accordable

Publications (2)

Publication Number Publication Date
CA2088372A1 CA2088372A1 (fr) 1992-03-01
CA2088372C true CA2088372C (fr) 1999-10-05

Family

ID=27416265

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002088372A Expired - Fee Related CA2088372C (fr) 1990-08-31 1991-08-07 Filtre etalon a cristal liquide accordable

Country Status (4)

Country Link
EP (1) EP0547077A1 (fr)
JP (1) JP2587743B2 (fr)
CA (1) CA2088372C (fr)
WO (1) WO1992004653A1 (fr)

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KR950011951B1 (ko) * 1992-12-04 1995-10-12 삼성전관주식회사 Lcd 및 그 제조방법
GB9309003D0 (en) * 1993-04-30 1993-06-16 Marconi Gec Ltd Optical devices
GB9608636D0 (en) 1996-04-25 1996-07-03 Secr Defence A tuneable filter
US8111401B2 (en) 1999-11-05 2012-02-07 Robert Magnusson Guided-mode resonance sensors employing angular, spectral, modal, and polarization diversity for high-precision sensing in compact formats
US7167615B1 (en) 1999-11-05 2007-01-23 Board Of Regents, The University Of Texas System Resonant waveguide-grating filters and sensors and methods for making and using same
US7094595B2 (en) 2000-10-30 2006-08-22 Sru Biosystems, Inc. Label-free high-throughput optical technique for detecting biomolecular interactions
US7175980B2 (en) 2000-10-30 2007-02-13 Sru Biosystems, Inc. Method of making a plastic colorimetric resonant biosensor device with liquid handling capabilities
US7142296B2 (en) 2000-10-30 2006-11-28 Sru Biosystems, Inc. Method and apparatus for detecting biomolecular interactions
US7300803B2 (en) 2000-10-30 2007-11-27 Sru Biosystems, Inc. Label-free methods for performing assays using a colorimetric resonant reflectance optical biosensor
US7101660B2 (en) 2000-10-30 2006-09-05 Sru Biosystems, Inc. Method for producing a colorimetric resonant reflection biosensor on rigid surfaces
US7217574B2 (en) 2000-10-30 2007-05-15 Sru Biosystems, Inc. Method and apparatus for biosensor spectral shift detection
US7371562B2 (en) 2000-10-30 2008-05-13 Sru Biosystems, Inc. Guided mode resonant filter biosensor using a linear grating surface structure
US7306827B2 (en) 2000-10-30 2007-12-11 Sru Biosystems, Inc. Method and machine for replicating holographic gratings on a substrate
US7575939B2 (en) 2000-10-30 2009-08-18 Sru Biosystems, Inc. Optical detection of label-free biomolecular interactions using microreplicated plastic sensor elements
US7615339B2 (en) 2000-10-30 2009-11-10 Sru Biosystems, Inc. Method for producing a colorimetric resonant reflection biosensor on rigid surfaces
US6951715B2 (en) * 2000-10-30 2005-10-04 Sru Biosystems, Inc. Optical detection of label-free biomolecular interactions using microreplicated plastic sensor elements
US7153702B2 (en) 2000-10-30 2006-12-26 Sru Biosystems, Inc. Label-free methods for performing assays using a colorimetric resonant reflectance optical biosensor
CA2396859A1 (fr) * 2001-08-06 2003-02-06 Coho Holdings, Llc Dispositif optique de filtrage et de detection
WO2003036354A2 (fr) * 2001-10-25 2003-05-01 Lambda Crossing Ltd. Filtres optiques accordables insensibles a la polarisation
US7429492B2 (en) 2002-09-09 2008-09-30 Sru Biosystems, Inc. Multiwell plates with integrated biosensors and membranes
FR2851043B1 (fr) * 2003-02-07 2005-04-29 Cit Alcatel Demultiplexeur d'un signal lumineux
US7447401B2 (en) * 2005-02-28 2008-11-04 Optium Australia Pty Limited Optical communications system
US9134307B2 (en) 2007-07-11 2015-09-15 X-Body, Inc. Method for determining ion channel modulating properties of a test reagent
NZ582473A (en) 2007-07-11 2011-12-22 Sru Biosystems Inc Methods of identifying modulators of ion channels using a colorimetric resonant reflectance optical biosensor
US9006661B1 (en) 2012-10-31 2015-04-14 Exelis, Inc. Compact THz focal plane imaging array with integrated context imaging sensors and antennae matrix
US9195048B1 (en) 2013-03-05 2015-11-24 Exelis, Inc. Terahertz tunable filter with microfabricated mirrors
US9234797B1 (en) 2013-03-05 2016-01-12 Exelis, Inc. Compact THz imaging detector with an integrated micro-spectrometer spectral tuning matrix
JP6291747B2 (ja) * 2013-08-28 2018-03-14 ソニー株式会社 光学的ローパスフィルタ、撮像デバイスおよび撮像装置
US9400412B2 (en) 2014-07-16 2016-07-26 Kent State University Nanosecond liquid crystalline optical modulator
WO2020105037A1 (fr) * 2018-11-19 2020-05-28 Lauber Yair Zvi Nouveaux systèmes et procédés d'imagerie
CN111193083B (zh) * 2020-02-26 2022-02-01 京东方科技集团股份有限公司 带通滤波器及其制备方法和驱动方法、电子装置
KR102404542B1 (ko) * 2020-10-12 2022-06-02 주식회사 알바트레이스 2중 씰라인을 갖는 파장가변형 액정 에탈론 필터 및 그 제조방법

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59116625A (ja) * 1982-12-23 1984-07-05 Toshiba Corp 光パルス発生器
US4630898A (en) * 1983-10-14 1986-12-23 Jewell Jack L Etalon optical logic gate apparatus and method
JPS60242422A (ja) * 1984-05-16 1985-12-02 Nippon Telegr & Teleph Corp <Ntt> 波長可変光フイルタ
JPS61224384A (ja) * 1985-03-29 1986-10-06 Nippon Telegr & Teleph Corp <Ntt> 波長選択光スイツチ
JPS62178219A (ja) * 1986-01-31 1987-08-05 Nippon Telegr & Teleph Corp <Ntt> 光波長選択素子
GB8621439D0 (en) * 1986-09-05 1986-10-15 Secr Defence Electro-optic device
GB8621438D0 (en) * 1986-09-05 1986-10-15 Secr Defence Electro-optic device
US4762397A (en) * 1987-06-19 1988-08-09 Hughes Aircraft Company Optical phase conjugator with spatially resolvable thresholding utilizing liquid crystal light valve
JPH01306802A (ja) * 1988-06-06 1989-12-11 Nippon Telegr & Teleph Corp <Ntt> 光周波数フィルタ
JPH0284621A (ja) * 1988-09-21 1990-03-26 Nec Corp 波長フィルタ装置
JPH0816739B2 (ja) * 1988-12-22 1996-02-21 日本電気株式会社 波長分岐挿入素子

Also Published As

Publication number Publication date
CA2088372A1 (fr) 1992-03-01
EP0547077A4 (fr) 1994-02-16
WO1992004653A1 (fr) 1992-03-19
JPH06500408A (ja) 1994-01-13
JP2587743B2 (ja) 1997-03-05
EP0547077A1 (fr) 1993-06-23

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