WO2001027666A3 - Optical multiplexer/demultiplexer using resonant grating filters - Google Patents

Optical multiplexer/demultiplexer using resonant grating filters Download PDF

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Publication number
WO2001027666A3
WO2001027666A3 PCT/US2000/025345 US0025345W WO0127666A3 WO 2001027666 A3 WO2001027666 A3 WO 2001027666A3 US 0025345 W US0025345 W US 0025345W WO 0127666 A3 WO0127666 A3 WO 0127666A3
Authority
WO
WIPO (PCT)
Prior art keywords
filters
demultiplexer
resonant grating
grating filters
optical multiplexer
Prior art date
Application number
PCT/US2000/025345
Other languages
French (fr)
Other versions
WO2001027666A2 (en
Inventor
Eric B Grann
L Curtis Maxey
Original Assignee
Ut Battelle Llc
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 Ut Battelle Llc filed Critical Ut Battelle Llc
Priority to EP00991375A priority Critical patent/EP1145052A2/en
Priority to JP2001530621A priority patent/JP2003514250A/en
Priority to CA002351535A priority patent/CA2351535A1/en
Priority to BR0007159-5A priority patent/BR0007159A/en
Priority to KR1020017006229A priority patent/KR20010099801A/en
Priority to AU32613/01A priority patent/AU3261301A/en
Publication of WO2001027666A2 publication Critical patent/WO2001027666A2/en
Publication of WO2001027666A3 publication Critical patent/WO2001027666A3/en

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • 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
    • 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
    • G02B27/10—Beam splitting or combining systems
    • G02B27/1086—Beam splitting or combining systems operating by diffraction only
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/18—Diffraction gratings
    • G02B5/1861—Reflection gratings characterised by their structure, e.g. step profile, contours of substrate or grooves, pitch variations, materials
    • 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
    • G02B6/29307—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 components assembled in or forming a solid transparent unitary block, e.g. for facilitating component alignment
    • 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
    • G02B6/2931—Diffractive element operating in reflection
    • 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
    • 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
    • G02B6/29346—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 wave or beam interference
    • G02B6/29361—Interference filters, e.g. multilayer coatings, thin film filters, dichroic splitters or mirrors based on multilayers, WDM filters
    • G02B6/29362—Serial cascade of filters or filtering operations, e.g. for a large number of channels
    • 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
    • G02B6/29379—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 characterised by the function or use of the complete device
    • G02B6/2938—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 characterised by the function or use of the complete device for multiplexing or demultiplexing, i.e. combining or separating wavelengths, e.g. 1xN, NxM
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems

Abstract

A wavelength division multiplex/demultiplexer (WDM) has a plurality of narrow-band zeroth order resonant grating filters (10a-10e) to multiplex or demultiplex multiple wavelengths that have very close channel spacing. In one embodiment, a plurality of these filters (10a-10e) are assembled in a block (20) in parallel and at an angle to a propagation axis to reflect signals for a plurality of discrete frequency channels. The block spacing material (21) can be liquid or solid. In another embodiment, the angular orientation of the resonant grating filters (10f-10g) is varied slightly to provide reflected signals for the plurality of discrete frequency channels. Crosstalk between channels can be reduced by reflecting each signal three times. Individual filters can be of binary structure or a sinusoidal grating (16) and can be made using thin film techniques.
PCT/US2000/025345 1999-09-17 2000-09-15 Optical multiplexer/demultiplexer using resonant grating filters WO2001027666A2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP00991375A EP1145052A2 (en) 1999-09-17 2000-09-15 Optical multiplexer/demultiplexer using resonant grating filters
JP2001530621A JP2003514250A (en) 1999-09-17 2000-09-15 Optical multiplexer / demultiplexer using resonant grating filter
CA002351535A CA2351535A1 (en) 1999-09-17 2000-09-15 Optical multiplexer/demultiplexer using resonant grating filters
BR0007159-5A BR0007159A (en) 1999-09-17 2000-09-15 Optical multiplexer / demultiplexer using resonant reticular filters
KR1020017006229A KR20010099801A (en) 1999-09-17 2000-09-15 Optical multiplexer/demultiplexer using resonant grating filters
AU32613/01A AU3261301A (en) 1999-09-17 2000-09-15 Optical multiplexer/demultiplexer using resonant grating filters

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/398,242 US6212312B1 (en) 1999-09-17 1999-09-17 Optical multiplexer/demultiplexer using resonant grating filters
US09/398,242 1999-09-17

Publications (2)

Publication Number Publication Date
WO2001027666A2 WO2001027666A2 (en) 2001-04-19
WO2001027666A3 true WO2001027666A3 (en) 2002-09-26

Family

ID=23574588

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2000/025345 WO2001027666A2 (en) 1999-09-17 2000-09-15 Optical multiplexer/demultiplexer using resonant grating filters

Country Status (8)

Country Link
US (1) US6212312B1 (en)
EP (1) EP1145052A2 (en)
JP (1) JP2003514250A (en)
KR (1) KR20010099801A (en)
AU (1) AU3261301A (en)
BR (1) BR0007159A (en)
CA (1) CA2351535A1 (en)
WO (1) WO2001027666A2 (en)

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Also Published As

Publication number Publication date
WO2001027666A2 (en) 2001-04-19
BR0007159A (en) 2001-07-31
EP1145052A2 (en) 2001-10-17
US6212312B1 (en) 2001-04-03
CA2351535A1 (en) 2001-04-19
AU3261301A (en) 2001-04-23
KR20010099801A (en) 2001-11-09
JP2003514250A (en) 2003-04-15

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