WO1999035523A8 - Composite diffraction gratings for signal processing and optical control applications - Google Patents

Composite diffraction gratings for signal processing and optical control applications

Info

Publication number
WO1999035523A8
WO1999035523A8 PCT/US1999/000425 US9900425W WO9935523A8 WO 1999035523 A8 WO1999035523 A8 WO 1999035523A8 US 9900425 W US9900425 W US 9900425W WO 9935523 A8 WO9935523 A8 WO 9935523A8
Authority
WO
WIPO (PCT)
Prior art keywords
composite
spectral filtering
signal processing
operative
diffraction gratings
Prior art date
Application number
PCT/US1999/000425
Other languages
French (fr)
Other versions
WO1999035523A1 (en
Inventor
William R Babbitt
Thomas W Mossberg
Original Assignee
Templex Technology 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
Application filed by Templex Technology Inc filed Critical Templex Technology Inc
Priority to EP99901373A priority Critical patent/EP1060427A4/en
Priority to JP2000527852A priority patent/JP2002501213A/en
Priority to CA002317784A priority patent/CA2317784A1/en
Priority to KR1020007007516A priority patent/KR20010033934A/en
Publication of WO1999035523A1 publication Critical patent/WO1999035523A1/en
Publication of WO1999035523A8 publication Critical patent/WO1999035523A8/en

Links

Classifications

    • 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
    • G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
    • G02B6/29304—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating by diffraction, e.g. grating
    • G02B6/29305—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating by diffraction, e.g. grating as bulk element, i.e. free space arrangement external to a light guide
    • G02B6/29311—Diffractive element operating in transmission
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/18—Diffraction gratings
    • G02B5/1814—Diffraction gratings structurally combined with one or more further optical elements, e.g. lenses, mirrors, prisms or other diffraction gratings
    • G02B5/1819—Plural gratings positioned on the same surface, e.g. array of gratings
    • 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
    • G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
    • G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
    • G02B6/12007—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind forming wavelength selective elements, e.g. multiplexer, demultiplexer
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/88—Image or video recognition using optical means, e.g. reference filters, holographic masks, frequency domain filters or spatial domain filters
    • G06V10/89—Image or video recognition using optical means, e.g. reference filters, holographic masks, frequency domain filters or spatial domain filters using frequency domain filters, e.g. Fourier masks implemented on spatial light modulators
    • G06V10/893—Image or video recognition using optical means, e.g. reference filters, holographic masks, frequency domain filters or spatial domain filters using frequency domain filters, e.g. Fourier masks implemented on spatial light modulators characterised by the kind of filter
    • G06V10/895—Image or video recognition using optical means, e.g. reference filters, holographic masks, frequency domain filters or spatial domain filters using frequency domain filters, e.g. Fourier masks implemented on spatial light modulators characterised by the kind of filter the filter being related to phase processing, e.g. phase-only filters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/005—Optical Code Multiplex
    • 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
    • G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
    • G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
    • G02B2006/12083—Constructional arrangements
    • G02B2006/12107—Grating

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Mathematical Physics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optical Communication System (AREA)
  • Diffracting Gratings Or Hologram Optical Elements (AREA)
  • Optical Integrated Circuits (AREA)

Abstract

A composite grating structure is disclosed that performs a programmed complex-valued, spectral filtering function on an input optical signal. The grating consists of a plurality of subgratings, each controlling the diffraction of a specific optical subbandwidth of light from an operative input direction to an operative output direction imparting a controllable amplitude and phase change onto the corresponding subbandwidth of light. The set of subgratings comprising the composite grating collectively controls the diffraction of an operative output direction. Each composite grating is programmed through its construction or is dynamically modified to provide a desired spectral filtering function. The composite gratings can be employed for general spectral filtering application but are especially attractive for optical waveform processing, generation, and detection.
PCT/US1999/000425 1998-01-07 1999-01-07 Composite diffraction gratings for signal processing and optical control applications WO1999035523A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP99901373A EP1060427A4 (en) 1998-01-07 1999-01-07 Composite diffraction gratings for signal processing and optical control applications
JP2000527852A JP2002501213A (en) 1998-01-07 1999-01-07 Compound diffraction grating for signal processing and light control
CA002317784A CA2317784A1 (en) 1998-01-07 1999-01-07 Composite diffraction gratings for signal processing and optical control applications
KR1020007007516A KR20010033934A (en) 1998-01-07 1999-01-07 Composite diffraction gratings for signal processing and optical control applications

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US7068498P 1998-01-07 1998-01-07
US60/070,684 1998-01-07

Publications (2)

Publication Number Publication Date
WO1999035523A1 WO1999035523A1 (en) 1999-07-15
WO1999035523A8 true WO1999035523A8 (en) 1999-09-16

Family

ID=22096778

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1999/000425 WO1999035523A1 (en) 1998-01-07 1999-01-07 Composite diffraction gratings for signal processing and optical control applications

Country Status (5)

Country Link
EP (1) EP1060427A4 (en)
JP (1) JP2002501213A (en)
KR (1) KR20010033934A (en)
CA (1) CA2317784A1 (en)
WO (1) WO1999035523A1 (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6965464B2 (en) 2000-03-16 2005-11-15 Lightsmyth Technologies Inc Optical processor
US6987911B2 (en) 2000-03-16 2006-01-17 Lightsmyth Technologies, Inc. Multimode planar waveguide spectral filter
USRE42407E1 (en) 2000-03-16 2011-05-31 Steyphi Services De Llc Distributed optical structures with improved diffraction efficiency and/or improved optical coupling
US7773842B2 (en) 2001-08-27 2010-08-10 Greiner Christoph M Amplitude and phase control in distributed optical structures
US6879441B1 (en) 2000-03-16 2005-04-12 Thomas Mossberg Holographic spectral filter
USRE42206E1 (en) 2000-03-16 2011-03-08 Steyphi Services De Llc Multiple wavelength optical source
USRE41570E1 (en) 2000-03-16 2010-08-24 Greiner Christoph M Distributed optical structures in a planar waveguide coupling in-plane and out-of-plane optical signals
FR2814548B1 (en) * 2000-09-26 2003-02-21 Jobin Yvon S A OPTICAL LIGHT DIFFRACTION METHOD, CORRESPONDING OPTICAL SYSTEM AND DEVICE
FR2822241B1 (en) * 2001-03-15 2003-08-22 Teem Photonics GUIDING STRUCTURE FOR TRANSFORMING A GAUSSIAN PROFILE PROPAGATION MODE INTO AN EXTENDED PROFILE PROPAGATION MODE
WO2004057376A2 (en) 2002-12-17 2004-07-08 Lightsmyth Technologies Incorporated Optical multiplexing device
US7260290B1 (en) 2003-12-24 2007-08-21 Lightsmyth Technologies Inc Distributed optical structures exhibiting reduced optical loss
US7181103B1 (en) 2004-02-20 2007-02-20 Lightsmyth Technologies Inc Optical interconnect structures incorporating sets of diffractive elements
US7120334B1 (en) 2004-08-25 2006-10-10 Lightsmyth Technologies Inc Optical resonator formed in a planar optical waveguide with distributed optical structures
US7327908B1 (en) 2005-03-07 2008-02-05 Lightsmyth Technologies Inc. Integrated optical sensor incorporating sets of diffractive elements
US7349599B1 (en) 2005-03-14 2008-03-25 Lightsmyth Technologies Inc Etched surface gratings fabricated using computed interference between simulated optical signals and reduction lithography
US7643400B1 (en) 2005-03-24 2010-01-05 Lightsmyth Technologies Inc Optical encoding of data with distributed diffractive structures
US7190856B1 (en) 2005-03-28 2007-03-13 Lightsmyth Technologies Inc Reconfigurable optical add-drop multiplexer incorporating sets of diffractive elements
US10188289B2 (en) 2014-06-20 2019-01-29 Rambus Inc. Systems and methods for lensed and lensless optical sensing

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4387955A (en) * 1981-02-03 1983-06-14 The United States Of America As Represented By The Secretary Of The Air Force Holographic reflective grating multiplexer/demultiplexer
DE3915625A1 (en) * 1989-05-12 1990-11-15 Standard Elektrik Lorenz Ag SEMICONDUCTOR LASER
US5204524A (en) * 1991-03-22 1993-04-20 Mitutoyo Corporation Two-dimensional optical encoder with three gratings in each dimension
US5216529A (en) * 1992-01-15 1993-06-01 Bell Communications Research, Inc. Holographic code division multiple access
US5315423A (en) * 1992-02-18 1994-05-24 Rockwell International Corporation Wavelength multiplexed two dimensional image transmission through single mode optical fiber
DE19629530C1 (en) * 1996-07-22 1997-10-30 Univ Dresden Tech Fibre-optical coder/decoder for optical code/multiplex systems
GB9616598D0 (en) * 1996-08-07 1996-09-25 Univ Cambridge Tech Active holographic spectral equalizer

Also Published As

Publication number Publication date
JP2002501213A (en) 2002-01-15
CA2317784A1 (en) 1999-07-15
EP1060427A4 (en) 2006-01-25
WO1999035523A1 (en) 1999-07-15
EP1060427A1 (en) 2000-12-20
KR20010033934A (en) 2001-04-25

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