AU2001274841A1 - Channel equalizer with acousto-optic variable attenuators - Google Patents
Channel equalizer with acousto-optic variable attenuatorsInfo
- Publication number
- AU2001274841A1 AU2001274841A1 AU2001274841A AU7484101A AU2001274841A1 AU 2001274841 A1 AU2001274841 A1 AU 2001274841A1 AU 2001274841 A AU2001274841 A AU 2001274841A AU 7484101 A AU7484101 A AU 7484101A AU 2001274841 A1 AU2001274841 A1 AU 2001274841A1
- Authority
- AU
- Australia
- Prior art keywords
- acousto
- channel equalizer
- variable attenuators
- optic variable
- optic
- 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.)
- Abandoned
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0221—Power control, e.g. to keep the total optical power constant
-
- 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
- G02B6/02—Optical fibres with cladding with or without a coating
- G02B6/02052—Optical fibres with cladding with or without a coating comprising optical elements other than gratings, e.g. 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
- G02B6/02—Optical fibres with cladding with or without a coating
- G02B6/02057—Optical fibres with cladding with or without a coating comprising gratings
- G02B6/02071—Mechanically induced gratings, e.g. having microbends
-
- 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
- G02B6/02—Optical fibres with cladding with or without a coating
- G02B6/02057—Optical fibres with cladding with or without a coating comprising gratings
- G02B6/02076—Refractive index modulation gratings, e.g. Bragg gratings
- G02B6/0208—Refractive index modulation gratings, e.g. Bragg gratings characterised by their structure, wavelength response
- G02B6/021—Refractive index modulation gratings, e.g. Bragg gratings characterised by their structure, wavelength response characterised by the core or cladding or coating, e.g. materials, radial refractive index profiles, cladding shape
-
- 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
- G02B6/14—Mode converters
-
- 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
- G02B6/255—Splicing of light guides, e.g. by fusion or bonding
- G02B6/2552—Splicing of light guides, e.g. by fusion or bonding reshaping or reforming of light guides for coupling using thermal heating, e.g. tapering, forming of a lens on light guide ends
-
- 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
- G02F1/0128—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 electro-mechanical, magneto-mechanical, elasto-optic effects
- G02F1/0131—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 electro-mechanical, magneto-mechanical, elasto-optic effects based on photo-elastic effects, e.g. mechanically induced birefringence
- G02F1/0134—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 electro-mechanical, magneto-mechanical, elasto-optic effects based on photo-elastic effects, e.g. mechanically induced birefringence in optical waveguides
-
- 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
- G02F1/11—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 acousto-optical elements, e.g. using variable diffraction by sound or like mechanical waves
- G02F1/125—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 acousto-optical elements, e.g. using variable diffraction by sound or like mechanical waves in an optical waveguide structure
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0201—Add-and-drop multiplexing
- H04J14/0202—Arrangements therefor
- H04J14/021—Reconfigurable arrangements, e.g. reconfigurable optical add/drop multiplexers [ROADM] or tunable optical add/drop multiplexers [TOADM]
- H04J14/0212—Reconfigurable arrangements, e.g. reconfigurable optical add/drop multiplexers [ROADM] or tunable optical add/drop multiplexers [TOADM] using optical switches or wavelength selective switches [WSS]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0201—Add-and-drop multiplexing
- H04J14/0202—Arrangements therefor
- H04J14/0213—Groups of channels or wave bands arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0201—Add-and-drop multiplexing
- H04J14/0215—Architecture aspects
- H04J14/0217—Multi-degree architectures, e.g. having a connection degree greater than two
-
- 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
- G02B6/12009—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 comprising arrayed waveguide grating [AWG] devices, i.e. with a phased array of waveguides
- G02B6/12019—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 comprising arrayed waveguide grating [AWG] devices, i.e. with a phased array of waveguides characterised by the optical interconnection to or from the AWG devices, e.g. integration or coupling with lasers or photodiodes
- G02B6/12021—Comprising cascaded AWG devices; AWG multipass configuration; Plural AWG devices integrated on a single chip
-
- 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
- G02B6/264—Optical coupling means with optical elements between opposed fibre ends which perform a function other than beam splitting
- G02B6/266—Optical coupling means with optical elements between opposed fibre ends which perform a function other than beam splitting the optical element being an attenuator
-
- 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
- G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
- G02F2201/02—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 fibre
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0201—Add-and-drop multiplexing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0201—Add-and-drop multiplexing
- H04J14/0202—Arrangements therefor
- H04J14/021—Reconfigurable arrangements, e.g. reconfigurable optical add/drop multiplexers [ROADM] or tunable optical add/drop multiplexers [TOADM]
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US20676700P | 2000-05-23 | 2000-05-23 | |
US60/206,767 | 2000-05-23 | ||
US09/666,763 | 2000-09-21 | ||
US09/666,763 US6539148B1 (en) | 1997-06-06 | 2000-09-21 | Channel equalizer with acousto-optic variable attenuators |
PCT/US2001/015902 WO2001091341A2 (en) | 2000-05-23 | 2001-05-15 | Channel equalizer with acousto-optic variable attenuators |
Publications (1)
Publication Number | Publication Date |
---|---|
AU2001274841A1 true AU2001274841A1 (en) | 2001-12-03 |
Family
ID=26901648
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU2001274841A Abandoned AU2001274841A1 (en) | 2000-05-23 | 2001-05-15 | Channel equalizer with acousto-optic variable attenuators |
Country Status (3)
Country | Link |
---|---|
US (1) | US6539148B1 (en) |
AU (1) | AU2001274841A1 (en) |
WO (1) | WO2001091341A2 (en) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6631224B2 (en) | 1997-06-06 | 2003-10-07 | Novera Optics, Inc. | Tunable filter with core mode blocker |
US6640027B2 (en) * | 1997-06-06 | 2003-10-28 | Novera Optics, Inc. | Gain flattening tunable filter |
US6850655B2 (en) | 1997-06-16 | 2005-02-01 | Novera Optics, Inc. | Optical apparatus with faraday rotator, static gain flattening filter and variable optical attenuator |
US6847742B2 (en) * | 1997-06-16 | 2005-01-25 | Novera Optics, Inc. | Tunable dynamic gain flattening filter using polarization delays |
US6904188B1 (en) | 2001-03-16 | 2005-06-07 | Novera Optics, Inc. | Acousto-optic tunable filter having improved wave-damping capability |
JP4576756B2 (en) * | 2001-06-19 | 2010-11-10 | 株式会社日立製作所 | Optical signal switching device and method of using the same |
JP3976554B2 (en) * | 2001-11-28 | 2007-09-19 | 富士通株式会社 | Variable attenuator control system |
EP1318579A1 (en) * | 2001-12-10 | 2003-06-11 | Corning Incorporated | Multi-wavelength raman laser |
AU2003213785A1 (en) * | 2002-03-06 | 2003-09-22 | Paradigm Wireless Systems, Inc. | Rf amplifier system with interface to provide a computer readable spectral depiction of the re output |
US7289734B2 (en) * | 2002-12-24 | 2007-10-30 | Tropic Networks Inc. | Method and system for multi-level power management in an optical network |
US7054519B1 (en) | 2003-03-10 | 2006-05-30 | Active Optical Networks, Inc. | Reconfigurable optical add drop multiplexers with integrated power equalization |
US6950566B1 (en) | 2003-08-27 | 2005-09-27 | Novera Optics, Inc. | Method and apparatus for an acousto-optic filter that generates a helical wave and method for manufacturing same |
US20060088242A1 (en) * | 2003-12-31 | 2006-04-27 | Vlad Novotny | Optical switches with uniaxial mirrors |
US7369953B2 (en) * | 2005-03-17 | 2008-05-06 | The Board Of Trustees Of The Leland Stanford Junior University | Femtosecond spectroscopy using minimum phase functions |
US7493227B2 (en) | 2005-03-17 | 2009-02-17 | The Board Of Trustees Of The Leland Stanford Junior University | Method for determining the complex scattering function of an optical coherence tomography sample |
EP1866616B1 (en) * | 2005-04-05 | 2013-01-16 | The Board Of Trustees Of The Leland Stanford Junior University | Optical image processing using minimum phase functions |
US20080063028A1 (en) * | 2006-09-11 | 2008-03-13 | Lumera Corporation | Photonics-based Multi-band Wireless Communication Methods |
US20080063411A1 (en) * | 2006-09-11 | 2008-03-13 | Lumera Corporation | Photonics-based Multi-band Wireless Communication System |
CN102281110B (en) * | 2011-07-29 | 2014-04-16 | 华为技术有限公司 | Methods and devices for regulating optical power |
CN103076655B (en) * | 2013-01-17 | 2016-06-29 | 珠海保税区光联通讯技术有限公司 | Adjustable optical attenuator wavelength division multiplexer |
JP7181458B2 (en) * | 2018-12-17 | 2022-12-01 | 日本電信電話株式会社 | optical repeater |
Family Cites Families (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4068191A (en) | 1975-08-22 | 1978-01-10 | Gte Laboratories Incorporated | Acoustooptic modulator for optical fiber waveguides |
US5022732A (en) | 1986-01-17 | 1991-06-11 | The Board Of Trustees Of The Leland Stanford Junior University | Fiber optic intermode coupling single sideband frequency shifter |
US4828350A (en) | 1986-01-17 | 1989-05-09 | The Board Of Trustees Of The Leland Stanford Junior University | Fiber optic mode selector |
US4832437A (en) | 1986-01-17 | 1989-05-23 | The Board Of Trustees Of The Leland Stanford Junior University | Fiber optic inter-mode coupling single side band frequency shifter |
US4781425A (en) | 1986-02-18 | 1988-11-01 | The Board Of Trustees Of The Leland Stanford Junior University | Fiber optic apparatus and method for spectrum analysis and filtering |
US4915468A (en) | 1987-02-20 | 1990-04-10 | The Board Of Trustees Of The Leland Stanford Junior University | Apparatus using two-mode optical waveguide with non-circular core |
US4971417A (en) | 1989-08-23 | 1990-11-20 | The Boeing Company | Radiation-hardened optical repeater |
US5007705A (en) | 1989-12-26 | 1991-04-16 | United Technologies Corporation | Variable optical fiber Bragg filter arrangement |
IL106185A (en) | 1993-06-30 | 1997-03-18 | Scitex Corp Ltd | Optical waveguide mode coupling using mechanical wave interference |
GB9401488D0 (en) * | 1994-01-26 | 1994-03-23 | British Telecomm | Optical communications |
US5864414A (en) * | 1994-01-26 | 1999-01-26 | British Telecommunications Public Limited Company | WDM network with control wavelength |
JPH11511568A (en) | 1995-08-29 | 1999-10-05 | アロヨ・オプティクス・インコーポレイテッド | Optical coupler using wavelength selective diffraction grating |
US5652809A (en) | 1996-03-29 | 1997-07-29 | Aronson; Lewis B. | Offset rotated transducers for acousto-optical tunable filters |
JP2977024B2 (en) | 1996-12-03 | 1999-11-10 | 日本電気株式会社 | Optical circuit for wavelength division multiplexing communication and optical transmission communication system including the same |
KR100265865B1 (en) * | 1997-06-16 | 2000-09-15 | 윤덕용 | All-fiber acousto-optic tunable filter |
US6233379B1 (en) * | 1997-06-06 | 2001-05-15 | Ultraband Fiber Optics | Acousto-optic filter |
US6266462B1 (en) | 1998-02-12 | 2001-07-24 | Ultraband Fiber Optics | Acousto-optic filter |
US6151157A (en) | 1997-06-30 | 2000-11-21 | Uniphase Telecommunications Products, Inc. | Dynamic optical amplifier |
US5970201A (en) * | 1997-09-18 | 1999-10-19 | Lucent Technologies Inc. | Power regulation in optical networks |
US6343165B1 (en) | 1998-02-12 | 2002-01-29 | Novera Optics, Inc. | Optical add drop multiplexer |
US5991476A (en) * | 1998-05-12 | 1999-11-23 | Hewlett-Packard Company | Pump directed optical switching element |
US6104856A (en) * | 1998-06-16 | 2000-08-15 | Lucent Technologies Inc. | Optical air-gap attenuator |
US6151427A (en) | 1999-04-20 | 2000-11-21 | The United States Of America As Represented By The National Security Agency | Tunable optic fiber bandpass filter using flexural acoustic waves |
US6292290B1 (en) * | 1999-12-20 | 2001-09-18 | Nortel Networks Limited | Methods and apparatus for adjusting power in an optical signal, for providing a seamless optical ring and for providing a bidirectional equalized amplifier |
-
2000
- 2000-09-21 US US09/666,763 patent/US6539148B1/en not_active Expired - Fee Related
-
2001
- 2001-05-15 WO PCT/US2001/015902 patent/WO2001091341A2/en active Application Filing
- 2001-05-15 AU AU2001274841A patent/AU2001274841A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
US6539148B1 (en) | 2003-03-25 |
WO2001091341A3 (en) | 2002-06-13 |
WO2001091341A2 (en) | 2001-11-29 |
WO2001091341A9 (en) | 2002-10-10 |
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