Patents
Sitemap › H04 - Electric communication technique › H04J - Multiplex communication › H04J 14 - Optical multiplex systems
Patents for H04J 14 - Optical multiplex systems (27,009)
11/2000
11/15/2000EP1052868A2 Free-space/arrayed-waveguide router
11/15/2000EP1052808A1 Communications network using priority classes
11/15/2000EP1052795A2 WDM optical transmission system
11/15/2000EP1051876A1 Wavelength-selective optical add/drop using tilting micro-mirrors
11/15/2000CN1273755A Wavelength-selective optial switching apparatus optical communication apparatus using it and using method in optical communication apparatus
11/15/2000CN1273474A Method for inhibiting continuous errors in ring-shaped optical SDH network
11/14/2000US6148124 Wavelength division multiplexed optical networks
11/14/2000US6147786 Hybrid analog/digital WDM access network with mini-digital optical node
11/14/2000US6147785 Coherent crosstalk attenuation apparatus
11/14/2000US6147784 Simultaneous wavelength-division multiplexing and broadcast transmission system
11/09/2000WO2000067408A1 Dense wavelength division multiplexing-based network interface module
11/09/2000WO2000067407A1 A device and method for filtering optical wavelengths
11/09/2000WO2000067400A1 Intrinsic securing of fibre optic communication links
11/09/2000WO2000041351A3 Monitoring of signal wavelengths in optical fibre
11/09/2000WO2000041350A3 Routing in a wdm system
11/09/2000WO2000041349A3 A method and coupling to change the wavelength of an optical transmitter in a system using wavelength division multiplexing
11/09/2000WO2000036780A9 High speed linking module
11/09/2000CA2371576A1 Intrinsic securing of fibre optic communication links
11/08/2000EP1051055A2 System and method for eliminating the capacity required for protection of an optical line system
11/08/2000EP1050131A1 Short distance dense wavelength division multiplexing optical communication system
11/08/2000EP1050130A1 Communications system with star / ring topology
11/08/2000CN1272989A Communication using spread spectrum methods over optical fibers
11/07/2000US6144784 Optical input/output module and light-reflecting device
11/07/2000US6144783 Optical multiplexter/demultiplexer
11/07/2000US6144488 Optically amplifying device with gain equalizing function
11/07/2000US6144487 Optical amplifying apparatus capable of detecting at least one of optical individual signals
11/07/2000US6144485 Controller which controls a variable optical attenuator to control the power level of a wavelength-multiplexed optical signal when the number of channels are varied
11/07/2000US6144474 Optical transmission system including optical repeaters with selectively enabled gain equalizers contained therein and including an add/drop apparatus with a plurality of individually selectable filters
11/07/2000US6144472 Upgrading a power-splitting passive optical network using optical filtering
11/07/2000CA2190970C Optical packet processing
11/06/2000CA2306114A1 System and method for eliminating the capacity required for protection of an optical line system
11/02/2000WO2000065760A1 Technique to obtain channel plans for wdm systems with reduced four-wave mixing effect
11/02/2000EP1049274A2 Optical repeater for wavelength division multiplexed signal light
11/02/2000EP1049273A2 Method and arrangement for controlling optical amplification in a wavelength division multiplex system
11/02/2000EP1047971A1 Optical add/drop multiplexer
11/02/2000EP0960349A4 Optical devices and methods
11/02/2000CA2371233A1 Technique to obtain channel plans for wdm systems with reduced four-wave mixing effect
10/2000
10/31/2000US6141470 Magnetically reconfigurable optical grating devices and communication systems
10/31/2000US6141141 Single sideband modulators
10/31/2000US6141127 High capacity chirped-pulse wavelength-division multiplexed communication method and apparatus
10/26/2000WO2000064087A1 Increased capacity bidirectional dwdm network architecture with frequency stacking system
10/26/2000WO2000064079A1 A highly scalable modular optical amplifier based subsystem
10/26/2000WO2000064078A1 Method and apparatus for implementing an optical cross-connection
10/26/2000WO2000039629A3 Acousto-optical device
10/26/2000CA2370762A1 Increased capacity bidirectional dwdm network architecture with frequency stacking system
10/25/2000EP1046070A1 Add/drop optical multiplexing device
10/24/2000US6137927 N-port reconfigurable DWDM multiplexer and demultiplexer
10/24/2000US6137613 Optical transmission apparatus in which light signal with selected wavelength is modulated with selected data signal
10/24/2000US6137610 Optical synchronization arrangement
10/24/2000US6137607 Broadband communications method and apparatus for reducing optical beat interference
10/24/2000US6137606 Optical wavelength router
10/24/2000US6137605 Output power control system for optical amplification repeater
10/24/2000US6137604 Chromatic dispersion compensation in wavelength division multiplexed optical transmission systems
10/24/2000US6137603 Optical network, optical division and insertion node and recovery system from network failure
10/24/2000CA2239913C Wdm network with control wavelength
10/19/2000DE19913374A1 Anordnung zur kanalindividuellen Dispersionskompensation eines Wellenlängen-Multiplexsignals Arrangement for dispersion compensation of a channel-specific wavelength division multiplexed signal
10/18/2000EP1045535A2 Optical amplifier equipment for WDM optical communication
10/18/2000EP1044529A1 Optical add-drop multiplexer
10/18/2000EP1044528A1 Wdm ring transmission system having reduced adjacent channel cross-talk
10/18/2000EP1044526A1 Concatenated codes for spread spectrum communication
10/18/2000EP1019991A4 Optical amplifier apparatus
10/18/2000CN1270719A Optical amplifier with gain adjustment
10/17/2000US6134250 Wavelength-selectable fiber ring laser
10/17/2000US6134036 Add/drop multiplexer node
10/17/2000US6134034 Apparatus and method for controlling power levels of individual signal lights of a wavelength division multiplexed signal light
10/17/2000US6134033 Method and apparatus for improving spectral efficiency in wavelength division multiplexed transmission systems
10/13/2000CA2300534A1 Bidirectional optical networks
10/12/2000WO2000060786A2 Method for measuring the quality of transmission in networks
10/12/2000WO2000035105A3 System for dealing with faults in an optical link
10/12/2000CA2300747A1 Method, apparatus and system for wdm system equalization
10/11/2000EP1043859A2 Optical add/drop multiplexer node device
10/11/2000EP1043856A2 Method and apparatus for implementing a wavelength division multiplexing communication system
10/11/2000EP1043847A1 Optical wavelength-division multiplex transmission network device using transceiver having 2-input/2-output optical path switch
10/10/2000US6130971 Fiber optic dense wavelength division multiplexer with a phase differential method of wavelength separation utilizing a polarization beam splitter and a nonlinear interferometer
10/10/2000US6130765 Drop/insert apparatus for dropping/inserting channels on a bidirectional multi-channel optical link
10/10/2000US6130764 Transmission apparatus in ring network
10/05/2000WO2000058832A1 Fault protection in networks
10/05/2000DE19915091A1 Transmission quality measurement method for optical wavelength division multiplexed (WDM) network using symbols
10/04/2000EP1041762A2 Communication system
10/04/2000EP1041761A2 Wavelength tunable filter apparatus
10/04/2000EP1041753A1 Device and method for compensating the polarisation mode dispersion according to the chromatic dispersion in an optical transmission system
10/04/2000EP1041748A2 Frequency stabilizing equipment for optical communication light source
10/04/2000EP1041747A2 Optical bidirectional communication system with supervisory channel
10/04/2000EP1040610A1 Method and apparatus for simultaneous transmission of digital telephony and analog video using wave division multiplexing
10/04/2000EP1040607A1 A method and a system for coding wdm signals
10/04/2000CN1268823A Communication system
10/03/2000US6128114 Method of and system for transmitting data
10/03/2000CA2257495C Optical transmission systems using optical amplifiers and wavelength division multiplexing
10/03/2000CA2093986C Optical parallel-serial converter and optical serial-parallel converter
09/2000
09/30/2000CA2299635A1 Compensation process and device for dispersion of polarization in an optical transmission system
09/28/2000WO2000057665A1 Optical wavelength add/drop multiplexer
09/28/2000WO2000057590A1 Dense wdm optical multiplexer and demultiplexer
09/28/2000WO2000057589A1 Method and apparatus for wavelenght multiplexing/demultiplexing
09/28/2000WO2000057584A1 Device for channel-specific dispersion compensation of a wavelength multiplex signal
09/28/2000WO2000057582A1 Optically modulated laser beam transceiver system
09/28/2000WO2000057226A1 Configurable optical add/drop device
09/28/2000DE10001388A1 AWG-(Arrayed Waveguide Grating)-Modul und Vorrichtung zur Überwachung eines Lichtsignals, das dieses verwendet AWG (Arrayed Waveguide Grating) module and apparatus for monitoring an optical signal utilizing this
09/28/2000CA2333057A1 Dense wdm optical multiplexer and demultiplexer
09/28/2000CA2332626A1 Configurable optical add/drop device
09/27/2000EP1039670A2 Wavelength division multiplexed system for optical access rings
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