WO2001014924A8 - Device for producing optically-controlled incremental time delays - Google Patents

Device for producing optically-controlled incremental time delays

Info

Publication number
WO2001014924A8
WO2001014924A8 PCT/US2000/023361 US0023361W WO0114924A8 WO 2001014924 A8 WO2001014924 A8 WO 2001014924A8 US 0023361 W US0023361 W US 0023361W WO 0114924 A8 WO0114924 A8 WO 0114924A8
Authority
WO
WIPO (PCT)
Prior art keywords
optical
instruments
time delay
approach
free
Prior art date
Application number
PCT/US2000/023361
Other languages
French (fr)
Other versions
WO2001014924A1 (en
WO2001014924A9 (en
Inventor
Stuart A Collins
Betty Lise Anderson
Original Assignee
Univ Ohio State
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 US09/645,136 external-priority patent/US6388815B1/en
Application filed by Univ Ohio State filed Critical Univ Ohio State
Priority to EP00961366A priority Critical patent/EP1210641A4/en
Priority to KR1020027002528A priority patent/KR20020062625A/en
Priority to AU73327/00A priority patent/AU7332700A/en
Priority to JP2001519225A priority patent/JP2003536090A/en
Publication of WO2001014924A1 publication Critical patent/WO2001014924A1/en
Publication of WO2001014924A8 publication Critical patent/WO2001014924A8/en
Publication of WO2001014924A9 publication Critical patent/WO2001014924A9/en

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 
    • G02F1/03—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 ceramics or electro-optical crystals, e.g. exhibiting Pockels effect or Kerr effect
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/0087—Phased arrays
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
    • H01Q3/2676—Optically controlled phased array
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B2207/00—Coding scheme for general features or characteristics of optical elements and systems of subclass G02B, but not including elements and systems which would be classified in G02B6/00 and subgroups
    • G02B2207/117—Adjustment of the optical path length

Abstract

The present invention includes time delay devices and time delay systems. The invention also includes machines and instruments using those aspects of the invention. The invention may also be used to upgrade, repair, or retrofit existing machines or instruments, using methods and components known in the art. The present invention comprises a true time device that falls into the free-space category but uses a multiple-pass optical cell with a beam splitter (28) and refocusing mirrors (13, 14, 24, 25) that have the advantage of avoiding beam spreading problems. The approach differs from previous free-space approaches in that it uses only one optical switch or spatial light modulator (12) instead of one or more switches for each bit. In one approach, a microwave signal for each antenna element may be modulated onto an optical beam. After the individual optical beams are delayed by the desired amount of time through the system, the signal may then be down-converted to microwave signals for further processing. This process may be used in either the transmit or the receive mode of a phased array radar.
PCT/US2000/023361 1999-08-26 2000-08-25 Device for producing optically-controlled incremental time delays WO2001014924A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP00961366A EP1210641A4 (en) 1999-08-26 2000-08-25 Device for producing optically-controlled incremental time delays
KR1020027002528A KR20020062625A (en) 1999-08-26 2000-08-25 Device for producing optically-controlled incremental time delays
AU73327/00A AU7332700A (en) 1999-08-26 2000-08-25 Device for producing optically-controlled incremental time delays
JP2001519225A JP2003536090A (en) 1999-08-26 2000-08-25 Device for generating an optically controlled incremental time delay

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US15088999P 1999-08-26 1999-08-26
US60/150,889 1999-08-26
US09/645,136 2000-08-24
US09/645,136 US6388815B1 (en) 2000-08-24 2000-08-24 Device and method for producing optically-controlled incremental time delays

Publications (3)

Publication Number Publication Date
WO2001014924A1 WO2001014924A1 (en) 2001-03-01
WO2001014924A8 true WO2001014924A8 (en) 2001-11-29
WO2001014924A9 WO2001014924A9 (en) 2002-09-06

Family

ID=26848129

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2000/023361 WO2001014924A1 (en) 1999-08-26 2000-08-25 Device for producing optically-controlled incremental time delays

Country Status (5)

Country Link
US (2) US6525889B1 (en)
EP (1) EP1210641A4 (en)
JP (1) JP2003536090A (en)
KR (1) KR20020062625A (en)
WO (1) WO2001014924A1 (en)

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US6388815B1 (en) * 2000-08-24 2002-05-14 The Ohio State University Device and method for producing optically-controlled incremental time delays
JP2003536090A (en) * 1999-08-26 2003-12-02 ジ・オハイオ・ステート・ユニバーシティ Device for generating an optically controlled incremental time delay
US6452546B1 (en) * 2000-06-14 2002-09-17 Hrl Laboratories, Llc Wavelength division multiplexing methods and apparatus for constructing photonic beamforming networks
US7164859B2 (en) * 2001-08-29 2007-01-16 Capella Photonics, Inc. Free-space dynamic wavelength routing systems with interleaved channels for enhanced performance
US6760140B1 (en) * 2002-03-01 2004-07-06 The Ohio State University Research Foundation Binary optical interconnection
US6674939B1 (en) 2002-03-26 2004-01-06 The Ohio State University Using fibers as delay elements in optical true-time delay devices based on the white cell
US6724951B1 (en) 2002-03-26 2004-04-20 The Ohio State University Using fibers as shifting elements in optical interconnection devices based on the white cell
US6766073B1 (en) 2002-05-17 2004-07-20 The Ohio State University Optical circulator with large number of ports and no polarization-based components
US7236238B1 (en) 2002-12-02 2007-06-26 The Ohio State University Method and apparatus for monitoring the quality of optical links
US6958861B1 (en) * 2002-12-02 2005-10-25 The Ohio State University Method and apparatus for combining optical beams
US7057716B2 (en) * 2003-10-28 2006-06-06 Hrl Laboratories, Llc White cell antenna beamformers
US7187820B1 (en) * 2003-11-12 2007-03-06 Wavefront Research, Inc. Optical time delay system
US7430347B2 (en) 2004-07-16 2008-09-30 The Ohio State University Methods, systems, and apparatuses for optically generating time delays in signals
US7633670B2 (en) 2004-07-16 2009-12-15 The Ohio State University Methods, systems, and devices for steering optical beams
US7660499B2 (en) 2004-07-16 2010-02-09 The Ohio State University Optical spot displacement apparatus
US7034985B1 (en) * 2004-10-19 2006-04-25 Reflectivity, Inc. Asymmetric spatial light modulator in a package
US20060139730A1 (en) * 2004-12-23 2006-06-29 Oehler Peter R Illumination system with compact turning prism and projection system using same
CA2596954A1 (en) * 2005-02-03 2006-08-10 Essex Corporation Long time aperture optical tapped delay line
US7466502B2 (en) 2005-12-07 2008-12-16 Tessera North America, Inc. Optical wavelength division coupler and associated methods
JP5568236B2 (en) 2005-07-22 2014-08-06 デジタルオプティクス・コーポレイション・イースト Optical wavelength division coupler and related method
US7911671B2 (en) 2006-05-10 2011-03-22 The Ohio State University Apparatus and method for providing true time delay in optical signals using a Fourier cell
US7630598B2 (en) 2006-05-10 2009-12-08 The Ohio State University Apparatus and method for providing an optical cross-connect
KR100893768B1 (en) * 2007-05-04 2009-04-20 한국광기술원 Optical delay line apparatus by polygon mirror
US9746654B2 (en) 2013-05-08 2017-08-29 Ohio State Innovation Foundation Optical delay elements created from variations of the robert cell
US9967546B2 (en) 2013-10-29 2018-05-08 Vefxi Corporation Method and apparatus for converting 2D-images and videos to 3D for consumer, commercial and professional applications
US20150116458A1 (en) 2013-10-30 2015-04-30 Barkatech Consulting, LLC Method and apparatus for generating enhanced 3d-effects for real-time and offline appplications
US10158847B2 (en) 2014-06-19 2018-12-18 Vefxi Corporation Real—time stereo 3D and autostereoscopic 3D video and image editing
WO2016093776A1 (en) * 2014-12-08 2016-06-16 Levent Onural A system and method for displaying and capturing holographic true 3d images
KR102612412B1 (en) * 2016-02-05 2023-12-12 한국전자통신연구원 Imaging sensor and method of manufacturing the same
US10324355B2 (en) * 2016-04-21 2019-06-18 Ohio State Innovation Foundation Devices and methods for implementing an optical switching engine

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US6388815B1 (en) * 2000-08-24 2002-05-14 The Ohio State University Device and method for producing optically-controlled incremental time delays

Also Published As

Publication number Publication date
JP2003536090A (en) 2003-12-02
US6525889B1 (en) 2003-02-25
EP1210641A4 (en) 2003-06-11
KR20020062625A (en) 2002-07-26
WO2001014924A1 (en) 2001-03-01
WO2001014924A9 (en) 2002-09-06
US6266176B1 (en) 2001-07-24
EP1210641A1 (en) 2002-06-05

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