Patents
Sitemap › H04 - Electric communication technique › H04J - Multiplex communication › H04J 14 - Optical multiplex systems
Patents for H04J 14 - Optical multiplex systems (27,009)
04/2003
04/15/2003US6549315 Optical transmission system and optical amplifying apparatus, optical amplifying unit, and optical coupler for the same
04/15/2003US6549314 Optical control apparatus, optical junction apparatus, optical ADM apparatus and optical transmission apparatus having thereof
04/15/2003US6549312 Method for designing optical filter cards
04/15/2003US6549018 Method for measuring the individual crosstalk in wavelength-division multiplex systems and wavelength division multiplex system
04/15/2003US6548806 Apparatus for monitoring frequency of WDM signals using pilot tone
04/15/2003CA2407327A1 Virtual common space: using wdm in metro access networks
04/15/2003CA2247687C Coherent optical communication system
04/10/2003WO2003030428A1 System for improving osnr of dwdm transmission system
04/10/2003WO2003030427A1 Improving osnr of optically amplified dwdm transmission system
04/10/2003WO2003030426A2 Method for extracting spectral parameters of channels from non-channelised light
04/10/2003WO2003030413A2 Fault signalling in optical communications networks
04/10/2003WO2003019240A3 Optical communications systems, devices, and methods
04/10/2003WO2002009299A9 Method and apparatus for extending fiber transmission distance with multiple pre-emphases in optically amplified dwdm system
04/10/2003US20030068148 Optical time-division multiplexing system
04/10/2003US20030068123 Wavelength tunable demultiplexing filter device, wavelength tunable multiplexing filter device, and wavelength routing device
04/10/2003US20030068122 Wavelength tunable demultiplexing filter device, wavelength tunable multiplexing filter device, and wavelength routing device
04/10/2003US20030067919 Labeled analog burst switching for any high-layer-over-signal channel integration
04/10/2003US20030067880 System and method for routing stability-based integrated traffic engineering for GMPLS optical networks
04/10/2003US20030067673 Optical amplifier
04/10/2003US20030067670 Dynamic optical spectral control scheme for optical amplifier sites
04/10/2003US20030067658 Optical module for wavelength reference measurement in WDM systems
04/10/2003US20030067655 Methods and systems for integrated IP routers and long haul/ultra long haul optical communication transceivers
04/10/2003US20030067652 Wavelength division-multiplexing optical transmission system
04/10/2003US20030067651 Channel identification in communications networks
04/10/2003US20030067649 Ring network using multi-wavelength generator
04/10/2003US20030067648 Optical maintenance signaling in optical data networks
04/10/2003US20030067647 Channel identification in communications networks
04/10/2003US20030067646 Channel identification in communications networks
04/10/2003US20030067645 Wavelength division multiplexed device
04/10/2003US20030067643 Bidirectional wavelength division multiplexed self-healing ring network composed of add fiber and drop fiber
04/09/2003EP1300975A1 Optical demultiplexing system for wavelength bands
04/09/2003EP1300968A1 A device for demultiplexing optical RZ signals
04/09/2003EP1299968A2 Athermalization and pressure desensitization of diffraction grating based spectrometer devices
04/09/2003EP1299967A1 Bragg grating assisted mmimi-coupler for tunable add-drop multiplexing
04/09/2003CN1409143A Device for multipath resolving optical R2 signal
04/08/2003US6546167 Tunable grating optical device
04/08/2003US6546165 Optical multiplexing/demultiplexing module
04/08/2003US6546162 1½×2 optical switch with a transmissive switching element
04/08/2003US6546160 Transceiver for wavelength multiplexing processes
04/08/2003US6546014 Method and system for dynamic bandwidth allocation in an optical access network
04/08/2003US6545826 Thermally compensated wavelength division demultiplexer and multiplexer and method of fabrication thereof
04/08/2003US6545799 Method and apparatus for optical system link control
04/08/2003US6545787 Method of communication between earth stations using a constellation of satellites
04/08/2003US6545784 Optical cross connect unit, optical add-drop multiplexer, light source unit, and adding unit
04/08/2003US6545783 Optical wavelength add/drop multiplexer
04/08/2003US6545782 Assymmetric wavelength slicing based dense wavelength division multiplexing
04/08/2003US6545781 High-throughput, low-latency next generation internet networks using optical label switching and high-speed optical header generation, detection and reinsertion
04/08/2003US6545780 Wavelength allocation method, a transmission equipment and receiving equipment using this method and a wavelength division multiplex transmission system
04/08/2003US6545779 System for dealing with faults in an optical link
04/04/2003CA2358206A1 Multi-wavelength optical access networks
04/03/2003WO2003028403A2 All-optical switching sites for an agile optical network
04/03/2003WO2003028307A1 Optical fiber network system transmission method, optical fiber network system thereof, and central unit thereof
04/03/2003WO2003028267A1 Mitigating nonlinear transmission impairments in fiber-optic communications systems
04/03/2003WO2003028265A2 Reconfigurable optical add/drop multiplexer having an array of micro-mirrors
04/03/2003WO2003028264A2 Light source for generating an output signal having spaced apart frequencies
04/03/2003WO2003028263A1 System for optical demultiplexing of wavelength bands
04/03/2003WO2003028262A1 Method and device for splitting and/or concentrating electromagnetic waves
04/03/2003WO2003028261A2 Topology discovery in optical wdm networks
04/03/2003WO2003028260A2 Method and apparatus for transmission of upstream data in an optical network
04/03/2003WO2003028252A1 System and method for orthogonal frequency division multiplexed optical communication
04/03/2003WO2003027739A1 Littrow grating based oadm
04/03/2003WO2003027735A1 Optical arrangement and transceiver module for bi-directional optical wdm systems and optical data transmissions
04/03/2003WO2002029453A9 A holographic multiplexer/demultiplexer and wavelength exchanger
04/03/2003US20030063871 Light-emitting module
04/03/2003US20030063854 Method for extracting spectral parameters of channels from non-channelised light
04/03/2003US20030063847 Deep fiber network architecture
04/03/2003US20030063843 Method and apparatus for transmission of upstream data in an optical network
04/03/2003US20030063840 Reconfigurable directional optical system
04/03/2003US20030063347 Optical exchanger
04/03/2003US20030063346 Reconfigurable, multi-user optical communications network, with low latency time
04/03/2003US20030063345 Wayside user communications over optical supervisory channel
04/03/2003US20030063344 Device for demultiplexing optical RZ signals
04/03/2003US20030063343 Optical power management in an optical network
04/03/2003CA2461475A1 All-optical switching sites for an agile optical network
04/02/2003EP1298956A1 Reconfigurable directional optical system
04/02/2003EP1298831A1 A CA-RZ optical clock signal generator, and a resynchronized optical multiplexer containing such a generator
04/02/2003EP1298827A2 Optical signal processing system
04/02/2003EP1298826A2 Method of transmission of at least a first and a second polarisation multiplexed data signals in an optical communication system
04/02/2003EP1298818A2 Method for transmission of at least a first and second polarisation multiplexed signal in an optical transmission system
04/02/2003EP1298467A1 Optical wavelength selective switch without distortion of unblocked channels
04/02/2003EP1297649A2 Optical performance monitor with optimized focus spot size
04/02/2003EP1244894A4 Dense wavelength division multiplexer utilizing an asymmetric pass band interferometer
04/02/2003EP0848873B1 Optical communication system
04/02/2003CN2543286Y Wave division multiplexer/demultiplexer based on array waveguide interferometer
04/02/2003CN1408071A Reducing insertion losses of written in grating with mode coupling in cladding
04/02/2003CN1407752A Multi-raster optical waveguide monitor
04/02/2003CN1407751A WDM switch with OADM and control method thereof
04/02/2003CN1407749A 光码变换器 Optical code converter
04/02/2003CN1407356A Cascade light filter
04/01/2003US6542678 High-dispersion fibers for high-speed transmission
04/01/2003US6542660 Method and system for increasing a number of information channels carried by optical waveguides
04/01/2003US6542291 Optical amplifier excitation light source control method for use in optical amplifier and optical amplifier control method
04/01/2003US6542290 Optical amplifier
04/01/2003US6542277 Optically amplified back-up receiver
04/01/2003US6542275 Dispersion compensating element having substantially uniform spectral nonlinearity
04/01/2003US6542271 Apparatus and method for reducing optical impairments in optical communications systems and networks
04/01/2003US6542268 Optical channel cross connect for telecommunication systems in wdm technology (wavelength division multiplexing) having a double spatial switching structure of optical flows strictly not blocking and interposed functional units operating on single channels
04/01/2003CA2273020C Optical channel regulator and method
03/2003
03/27/2003WO2003026226A1 Allocation of bit streams for communication over multi-carrier frequency-division multiplexing (fdm)
03/27/2003WO2003026179A1 Mapping of bit streams into mpeg frames
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