CA2276275A1 - Switchable wavelength router - Google Patents
Switchable wavelength router Download PDFInfo
- Publication number
- CA2276275A1 CA2276275A1 CA002276275A CA2276275A CA2276275A1 CA 2276275 A1 CA2276275 A1 CA 2276275A1 CA 002276275 A CA002276275 A CA 002276275A CA 2276275 A CA2276275 A CA 2276275A CA 2276275 A1 CA2276275 A1 CA 2276275A1
- Authority
- CA
- Canada
- Prior art keywords
- router
- wdm
- optical signals
- signals
- switchable wavelength
- 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.)
- Granted
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
- G02B6/27—Optical coupling means with polarisation selective and adjusting means
- G02B6/2706—Optical coupling means with polarisation selective and adjusting means as bulk elements, i.e. free space arrangements external to a light guide, e.g. polarising beam splitters
- G02B6/2713—Optical coupling means with polarisation selective and adjusting means as bulk elements, i.e. free space arrangements external to a light guide, e.g. polarising beam splitters cascade of polarisation selective or adjusting operations
- G02B6/272—Optical coupling means with polarisation selective and adjusting means as bulk elements, i.e. free space arrangements external to a light guide, e.g. polarising beam splitters cascade of polarisation selective or adjusting operations comprising polarisation means for beam splitting and combining
-
- 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
- G02B6/29302—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 based on birefringence or polarisation, e.g. wavelength dependent birefringence, polarisation interferometers
-
- 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
- G02B6/29395—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 configurable, e.g. tunable or reconfigurable
-
- 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
- G02F1/29—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 position or the direction of light beams, i.e. deflection
- G02F1/31—Digital deflection, i.e. optical switching
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0003—Details
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0005—Switch and router aspects
-
- 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
- G02B6/27—Optical coupling means with polarisation selective and adjusting means
- G02B6/2753—Optical coupling means with polarisation selective and adjusting means characterised by their function or use, i.e. of the complete device
- G02B6/2766—Manipulating the plane of polarisation from one input polarisation to another output polarisation, e.g. polarisation rotators, linear to circular polarisation converters
-
- 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
- H04J14/0209—Multi-stage arrangements, e.g. by cascading multiplexers or demultiplexers
-
- 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
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0005—Switch and router aspects
- H04Q2011/0007—Construction
- H04Q2011/0026—Construction using free space propagation (e.g. lenses, mirrors)
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0005—Switch and router aspects
- H04Q2011/0007—Construction
- H04Q2011/0032—Construction using static wavelength routers (e.g. arrayed waveguide grating router [AWGR] )
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0005—Switch and router aspects
- H04Q2011/0007—Construction
- H04Q2011/0035—Construction using miscellaneous components, e.g. circulator, polarisation, acousto/thermo optical
Abstract
A switchable wavelength router (999) having an input port (11) for the incoming WDM signal (500) and two output ports (13, 14) for de-multiplexing the WDM signals (500). The router (999) divides the received optical signals into divided optical signals (101, 102) comprising a subset of the channels and spatially positions the divided optical signals in response to a control signal applied to the router (999). For example, the router (999) can divide a received WDM signal (500) into two subsets that are either single channel or WDM signals. Multiple routers (999) can be cascaded to form a 2n switchable wavelength router, where n is the number of stages of wavelength routers.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/780,291 US5694233A (en) | 1996-07-23 | 1997-01-08 | Switchable wavelength router |
US780,291 | 1997-01-08 | ||
PCT/US1998/006809 WO1998033289A2 (en) | 1997-01-08 | 1998-01-05 | Switchable wavelength router |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2276275A1 true CA2276275A1 (en) | 1998-07-30 |
CA2276275C CA2276275C (en) | 2002-08-06 |
Family
ID=25119179
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002276275A Expired - Fee Related CA2276275C (en) | 1997-01-08 | 1998-01-05 | Switchable wavelength router |
Country Status (7)
Country | Link |
---|---|
US (1) | US5694233A (en) |
EP (1) | EP0951764A2 (en) |
JP (1) | JP2001508194A (en) |
CN (1) | CN1249871A (en) |
AU (1) | AU727466B2 (en) |
CA (1) | CA2276275C (en) |
WO (1) | WO1998033289A2 (en) |
Families Citing this family (107)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5912748A (en) * | 1996-07-23 | 1999-06-15 | Chorum Technologies Inc. | Switchable wavelength router |
US5867291A (en) * | 1996-10-29 | 1999-02-02 | Chorum Technologies Inc. | Programmable wavelength router |
US6005697A (en) * | 1996-07-23 | 1999-12-21 | Macro-Vision Communications, L.L.C. | Multi-wavelength cross-connect optical network |
US6163393A (en) | 1996-10-29 | 2000-12-19 | Chorum Technologies Inc. | Method and apparatus for wavelength multipexing/demultiplexing |
US6545783B1 (en) * | 1996-10-29 | 2003-04-08 | Chorum Technologies Lp | Optical wavelength add/drop multiplexer |
US6243200B1 (en) * | 2000-03-02 | 2001-06-05 | Chorum Technologies, Inc. | Optical wavelength router based on polarization interferometer |
US6498680B1 (en) | 1996-10-29 | 2002-12-24 | Chorum Technologies Lp | Compact tunable optical wavelength interleaver |
US6166838A (en) * | 1997-03-24 | 2000-12-26 | Chorum Technologies, Inc. | Optical add/drop wavelength switch |
US6115155A (en) | 1996-10-29 | 2000-09-05 | Chorum Technologies Inc. | System for dealing with faults in an optical link |
US6208444B1 (en) | 1996-10-29 | 2001-03-27 | Chorum Technologies Inc. | Apparatus for wavelength demultiplexing using a multi-cavity etalon |
US6847786B2 (en) | 1996-10-29 | 2005-01-25 | Ec-Optics Technology, Inc. | Compact wavelength filter using optical birefringence and reflective elements |
US6208442B1 (en) | 1998-03-26 | 2001-03-27 | Chorum Technologies, Inc. | Programmable optical multiplexer |
US6285478B1 (en) | 1998-03-26 | 2001-09-04 | Chorum Technologies Lp | Programmable optical add/drop device |
US6097518A (en) * | 1996-10-29 | 2000-08-01 | Chorum Technologies Inc. | N x M optical wavelength routing switch |
US6049404A (en) * | 1997-04-02 | 2000-04-11 | Macro-Vision Communications Inc. | N+M digitally programmable optical routing switch |
US6275312B1 (en) | 1997-04-02 | 2001-08-14 | Chorum Technologies Lp | Optical routing switch |
US5946116A (en) * | 1997-04-02 | 1999-08-31 | Wu; Kuang-Yi | 1 X N digitally programmable optical routing switch |
US6519022B1 (en) * | 1997-04-02 | 2003-02-11 | Chorum Technologies Lp | Optical routing switch using symmetric liquid crystal cells |
US5945255A (en) * | 1997-06-09 | 1999-08-31 | Taiwan Semiconductor Manufacturing Company, Ltd. | Birefringent interlayer for attenuating standing wave photoexposure of a photoresist layer formed over a reflective layer |
JP2004500722A (en) * | 1997-08-08 | 2004-01-08 | コーラム テクノロジーズ インコーポレイティド | Multi-wavelength cross-connect optical network |
US6094246A (en) | 1998-01-06 | 2000-07-25 | Chorum Technologies | Acute twist nematic liquid crystal electro-optic modulator for use in an infrared optical communication system having extinction ratio of -25db |
JP3779054B2 (en) * | 1998-01-23 | 2006-05-24 | 富士通株式会社 | Variable optical filter |
JP3638777B2 (en) | 1998-02-04 | 2005-04-13 | 富士通株式会社 | Method for gain equalization and apparatus and system used to implement the method |
US6026203A (en) * | 1998-07-30 | 2000-02-15 | Hewlett-Packard Company | Polarization mixer based on walk-off crystals, half-wave plates and TEC fibers |
US6134358A (en) | 1998-08-27 | 2000-10-17 | Chorum Technologies Inc. | N x N switch array with reduced components |
US6519060B1 (en) * | 1999-06-04 | 2003-02-11 | Chorum Technologies Lp | Synchronous optical network in frequency domain |
US6160665A (en) * | 1999-06-04 | 2000-12-12 | Chorum Technologies Inc. | High extinction ratio polarization beamsplitter |
US6341040B1 (en) | 1999-06-08 | 2002-01-22 | Jds Uniphase Corporation | Multi-plate comb filter and applications therefor |
US6275322B1 (en) | 1999-06-08 | 2001-08-14 | Jds Uniphase Corporation | Michelson phase shifter interleaver/deinterleavers |
US6360037B1 (en) | 1999-06-16 | 2002-03-19 | Nuonics, Inc. | Polarization-based fiber-optic switch |
US6285500B1 (en) | 1999-06-29 | 2001-09-04 | Corning Incorporated | Wavelength selective switch |
US6594054B1 (en) * | 1999-09-15 | 2003-07-15 | Lucent Technologies Inc. | Filtering system for eliminating dispersion and method for doing same |
US6853488B1 (en) | 1999-09-23 | 2005-02-08 | Avanex Corporation | Reflection-type optical circulator utilizing a lens and birefringent plates |
US6560015B1 (en) | 1999-09-23 | 2003-05-06 | Avanex Corporation | High-isolation dense wavelength division multiplexer utilizing birefringent plates and a non-linear interferometer |
US6236506B1 (en) | 1999-09-23 | 2001-05-22 | Avanex Corporation | Reflection-type optical circulation utilizing a lens and birefringent plates |
US6373604B1 (en) | 1999-10-01 | 2002-04-16 | New Focus, Inc. | Optical MUX/DEMUX |
AU4502701A (en) * | 1999-10-01 | 2001-06-04 | New Focus, Inc. | Otpical mux/demux |
US6396609B1 (en) * | 1999-12-20 | 2002-05-28 | Chorum Technologies, Lp | Dispersion compensation for optical systems |
US6360034B1 (en) | 1999-12-30 | 2002-03-19 | Jds Uniphase Corporation | Reflection based nonmoving part optical switch |
US6335830B1 (en) | 1999-12-31 | 2002-01-01 | Jds Uniphase Corporation | Double-pass folded interleaver/deinterleavers |
US6342968B1 (en) | 1999-12-31 | 2002-01-29 | Jds Uniphase Corporation | Frequency tuning of optical devices |
US6301046B1 (en) | 1999-12-31 | 2001-10-09 | Jds Uniphase Corporation | Interleaver/deinterleavers causing little or no dispersion of optical signals |
US6337770B1 (en) | 1999-12-31 | 2002-01-08 | Jds Uniphase Corporation | Single-pass folded interleaver/deinterleavers |
US20020015547A1 (en) * | 2000-01-07 | 2002-02-07 | Patel Jay S. | Compact multi-channel polarization mode dispersion compensator |
US6212313B1 (en) * | 2000-01-31 | 2001-04-03 | Oplink Communications, Inc. | Optical interleaver |
US6687462B1 (en) | 2000-02-01 | 2004-02-03 | Oplink Communications, Inc. | Wavelength slicer for optical signal switching |
US6463189B1 (en) | 2000-02-24 | 2002-10-08 | Avanex Corporation | Method and apparatus for optical switching devices utilizing a bi-morphic piezoelectric apparatus |
US6333816B1 (en) | 2000-03-03 | 2001-12-25 | Jds Uniphase Corporation | Apparatus capable of operating as interleaver/deinterleavers or filters |
US6559992B2 (en) | 2000-03-27 | 2003-05-06 | Chorum Technologies Lp | Adjustable chromatic dispersion compensation |
US6441960B1 (en) | 2000-04-20 | 2002-08-27 | Oplink Communications, Inc. | Optical interleavers with minimized dispersion |
US6490377B1 (en) * | 2000-05-01 | 2002-12-03 | Oplink Communications, Inc. | Optical interleaver |
US6426816B1 (en) * | 2000-05-01 | 2002-07-30 | Chorum Technologies, Lp | Wide transmission optical comb filter with wide pass band and wide stop band |
US6721477B2 (en) * | 2000-05-05 | 2004-04-13 | Jds Uniphase Inc. | Dispersion-free optical filters |
US6693743B2 (en) | 2000-06-07 | 2004-02-17 | Cirvine Corporation | Birefringent devices |
US6781754B2 (en) | 2000-06-07 | 2004-08-24 | Cirvine Corporation | Interleaver using spatial birefringent elements |
US6687054B2 (en) | 2000-06-07 | 2004-02-03 | Cirvine Corporation | Apparatus and method for low dispersion in communications |
US6731430B2 (en) * | 2000-06-07 | 2004-05-04 | Cirvine Corporation | Low crosstalk flat band filter |
US6628449B2 (en) | 2000-11-01 | 2003-09-30 | Cirvine Corporation | Tandem comb filter |
US6563641B2 (en) | 2000-06-23 | 2003-05-13 | Cirvine Corporation | Fold interleaver |
AU2000255111A1 (en) * | 2000-06-30 | 2002-04-08 | Nortel Networks (Photonics) Pty Ltd | Optical filter for frequency dependent filtering |
FR2812730B1 (en) * | 2000-08-01 | 2003-07-25 | Thomson Csf | SYSTEM INCLUDING A DEVICE REQUIRING TO RECEIVE LINEARLY POLARIZED BEAMS AND CORRESPONDING METHOD |
US6466704B1 (en) | 2000-09-13 | 2002-10-15 | Nortel Networks (Photonics) Pty Ltd. | Optical filtering method and device |
US6704143B1 (en) | 2000-10-23 | 2004-03-09 | Adc Telecommunications, Inc. | Method and apparatus for adjusting an optical element to achieve a precise length |
US6441961B1 (en) * | 2000-10-30 | 2002-08-27 | Oplink Communications, Inc. | Folded optical interleaver with optional routing capability |
US6678476B1 (en) * | 2000-10-30 | 2004-01-13 | Oplink Communications, Inc. | WDM with optical interleaving for increased channel capacity |
US20030179450A1 (en) * | 2000-11-10 | 2003-09-25 | Tomomi Sano | Interleaver, filter included therein, and interleaver system |
US7127179B2 (en) * | 2000-11-22 | 2006-10-24 | Optellios, Inc. | Polarization encoder device |
US6535335B2 (en) | 2000-11-22 | 2003-03-18 | Optellios, Inc. | Optical polarization encoder |
US6907167B2 (en) | 2001-01-19 | 2005-06-14 | Gazillion Bits, Inc. | Optical interleaving with enhanced spectral response and reduced polarization sensitivity |
US7031060B2 (en) * | 2001-01-19 | 2006-04-18 | Jds Uniphase Corporation | Non-moving parts add/drop device |
US20050174639A1 (en) * | 2001-01-22 | 2005-08-11 | Zeev Zalevsky | Fast all-optical switches and attenuators |
US6807329B2 (en) * | 2001-07-17 | 2004-10-19 | Civcom Devices & Systems Ltd. | Method and device for polarization-based all-optical switching |
US6694066B2 (en) | 2001-02-14 | 2004-02-17 | Finisar Corporation | Method and apparatus for an optical filter |
US6618516B1 (en) | 2001-02-14 | 2003-09-09 | Sharp Laboratories Of America, Inc. | Optical switching devices |
US6684002B2 (en) | 2001-02-14 | 2004-01-27 | Finisar Corporation | Method and apparatus for an optical filter |
US6885821B2 (en) * | 2001-02-27 | 2005-04-26 | Avanex Corporation | Full-duplex optical add/drop communications system utilizing central light sources |
US6407846B1 (en) | 2001-03-16 | 2002-06-18 | All Optical Networks, Inc. | Photonic wavelength shifting method |
US6493139B1 (en) * | 2001-03-16 | 2002-12-10 | Hongdu Liu | Optical switch |
TW476009B (en) * | 2001-03-27 | 2002-02-11 | Ind Tech Res Inst | Optical circulator with 3-port |
US6809863B2 (en) | 2001-06-07 | 2004-10-26 | Cirvine Corporation | Low dispersion filters |
US7106508B2 (en) * | 2001-06-11 | 2006-09-12 | Finisar Corporation | Hybrid cell |
US6639707B2 (en) | 2001-06-25 | 2003-10-28 | Cirvine Corporation | Tandem interleaver |
US6900938B2 (en) | 2001-06-25 | 2005-05-31 | Bin Zhao | Low dispersion interleaver |
US7154668B2 (en) * | 2001-07-10 | 2006-12-26 | Optellios, Inc. | Wavelength dependent optical attenuator and variable attenuation profile controller |
US6515786B1 (en) | 2001-08-03 | 2003-02-04 | Chorum Technologies Lp | Bandwidth variable wavelength router and method of operation |
WO2003014781A1 (en) * | 2001-08-03 | 2003-02-20 | Chorum Technologies Lp | Wavelength router and method of operation |
ATE354891T1 (en) * | 2001-08-16 | 2007-03-15 | Ericsson Telefon Ab L M | OPTICAL AMPLIFIER |
ITMI20011817A1 (en) * | 2001-08-28 | 2003-02-28 | Marconi Comm Spa | DEVICES FOR OPTICAL SWITCHING OF WAVELENGTHS IN TELECOMMUNICATIONS NETWORKS |
US6871022B2 (en) * | 2001-09-14 | 2005-03-22 | Stratos International, Inc. | Cascaded optical multiplexer |
US20030076568A1 (en) * | 2001-10-22 | 2003-04-24 | Adc Telecommunications, Inc. | Light frequency stabilizer |
US6587267B2 (en) | 2001-11-09 | 2003-07-01 | Jds Uniphase Inc. | Beam directing device |
US6680470B1 (en) | 2001-11-14 | 2004-01-20 | Dicon Fiberoptics, Inc. | Interleaver with thermal and chromatic dispersion compensation |
US6718082B2 (en) * | 2001-12-18 | 2004-04-06 | Agiltron, Inc. | Solid-State optical wavelength switches |
US6917760B2 (en) * | 2001-12-31 | 2005-07-12 | Wavesplitter Technologies, Inc. | Wide passband optical interleaver |
US20040227996A1 (en) * | 2002-06-12 | 2004-11-18 | Tengda Du | Optical interleaver and filter cell design with enhanced thermal stability |
US7268944B2 (en) * | 2002-06-12 | 2007-09-11 | Finisar Corporation | Optical interleaver, filter cell, and component design with reduced chromatic dispersion |
US7173763B2 (en) * | 2002-06-12 | 2007-02-06 | Finisar Corporation | Optical interleaver and filter cell design with enhanced clear aperture |
US20040223222A1 (en) * | 2002-06-12 | 2004-11-11 | Schott Daniel Philip | Hermetically sealed collimator and optical interleaver design |
US6850364B2 (en) | 2002-06-12 | 2005-02-01 | Finisar Corporation | Method and apparatus for an optical multiplexer and demultiplexer with an optical processing loop |
JP4544828B2 (en) * | 2003-03-31 | 2010-09-15 | 富士通株式会社 | Wavelength selective switch |
US9530132B2 (en) * | 2004-01-27 | 2016-12-27 | George Chester Cox | System and method for customer video authentication to prevent identity theft |
FR2878041B1 (en) * | 2004-11-18 | 2007-10-26 | Eads Astrium Sas Soc Par Actio | OPTICAL SEPARATION DEVICE AND OPTICAL COMMUNICATION TERMINAL COMPRISING SUCH A DEVICE |
US20060262396A1 (en) * | 2005-05-19 | 2006-11-23 | Smith Irl W | Optical diplexer with liquid crystal tunable waveplate |
CN102023397B (en) * | 2009-09-11 | 2013-02-06 | 福州高意通讯有限公司 | Dimmable filter |
CN102043255B (en) * | 2010-11-18 | 2012-07-25 | 华中科技大学 | Polarization interference-based full-light OFDM signal multiplexing and demultiplexing device |
CN102207586A (en) * | 2011-05-20 | 2011-10-05 | 深圳市天阳谷科技发展有限公司 | Four-port optical directional router |
US10439302B2 (en) | 2017-06-08 | 2019-10-08 | Pct International, Inc. | Connecting device for connecting and grounding coaxial cable connectors |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3503670A (en) * | 1967-01-16 | 1970-03-31 | Ibm | Multifrequency light processor and digital deflector |
JPS55121215U (en) * | 1979-02-21 | 1980-08-28 | ||
US4461543A (en) * | 1982-03-26 | 1984-07-24 | Sperry Corporation | Electro optic switch |
US4685773A (en) * | 1984-09-13 | 1987-08-11 | Gte Laboratories Incorporated | Birefringent optical multiplexer with flattened bandpass |
US4720171A (en) * | 1985-11-05 | 1988-01-19 | Itt Defense Communications, A Division Of Itt Corporation | Liquid crystal optical switching device having reduced crosstalk |
WO1989002614A1 (en) * | 1987-09-11 | 1989-03-23 | British Telecommunications Public Limited Company | An optical space switch |
US4919522A (en) * | 1988-02-25 | 1990-04-24 | Geo-Centers, Inc. | Optical switch having birefringent element |
US4989941A (en) * | 1988-03-18 | 1991-02-05 | The United States Of America As Represented By The Secretary Of The Air Force | Normal incidence optical switches using ferroelectric liquid crystals |
US4987567A (en) * | 1988-11-21 | 1991-01-22 | Gte Laboratories Incorporated | Optical wavelength multiplexer/demultiplexer and demultiplexer/remultiplexer |
DE69013130T2 (en) * | 1989-12-28 | 1995-03-09 | Fujitsu Ltd | Optical spatial switch and network with such optical spatial switches. |
US5165104A (en) * | 1991-03-01 | 1992-11-17 | Optivideo Corporation | Optical interconnecting device and method |
US5317658A (en) * | 1992-04-06 | 1994-05-31 | At&T Bell Laboratories | Apparatus and method for providing a polarization independent optical switch |
US5381250A (en) * | 1992-11-06 | 1995-01-10 | Displaytech, Inc. | Electro-optical switch with 4 port modules with electro-optic polarization rotators |
US5363228A (en) * | 1993-03-05 | 1994-11-08 | General Electric Company | Optical device with spatial light modulators for switching arbitrarily polarized light |
US5414541A (en) * | 1993-06-01 | 1995-05-09 | Bell Communications Research, Inc. | Optical switch employing first and second ferroelectric cells with alignment layers having alignment directions offset by 45° |
-
1997
- 1997-01-08 US US08/780,291 patent/US5694233A/en not_active Expired - Lifetime
-
1998
- 1998-01-05 WO PCT/US1998/006809 patent/WO1998033289A2/en not_active Application Discontinuation
- 1998-01-05 CA CA002276275A patent/CA2276275C/en not_active Expired - Fee Related
- 1998-01-05 JP JP53228698A patent/JP2001508194A/en active Pending
- 1998-01-05 CN CN98803180A patent/CN1249871A/en active Pending
- 1998-01-05 AU AU69531/98A patent/AU727466B2/en not_active Ceased
- 1998-01-05 EP EP98915317A patent/EP0951764A2/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
CA2276275C (en) | 2002-08-06 |
CN1249871A (en) | 2000-04-05 |
JP2001508194A (en) | 2001-06-19 |
WO1998033289A3 (en) | 1998-11-05 |
US5694233A (en) | 1997-12-02 |
WO1998033289A2 (en) | 1998-07-30 |
EP0951764A2 (en) | 1999-10-27 |
EP0951764A4 (en) | 1999-10-27 |
AU6953198A (en) | 1998-08-18 |
AU727466B2 (en) | 2000-12-14 |
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