Patents
Sitemap › H04 - Electric communication technique › H04J - Multiplex communication › H04J 14 - Optical multiplex systems
Patents for H04J 14 - Optical multiplex systems (27,009)
05/2003
05/02/2003EP1306988A2 Wavelength/band-specific optical amplifier
05/02/2003EP1305903A1 Wavelength division multiplex (wdm) optical network
05/02/2003EP1305658A2 Athermalization and pressure desensitization of diffraction grating based wdm devices
05/01/2003WO2003036841A1 Hitless filter tuning
05/01/2003WO2003036834A1 Method and system for optical time division multiplexed fiber communications with coherent detection
05/01/2003WO2003036341A2 Field reconfigurable line cards for an optical transport system
05/01/2003WO2002101965A3 Routing and switching in a hybrid network
05/01/2003WO2002097476A3 Point-to-multipoint passive optical network that utilizes variable-length packets and variable-length upstream tine slots
05/01/2003WO2002075975A3 Improvements in optical data receiver systems
05/01/2003WO2002075369A3 Modular all-optical cross-connect
05/01/2003WO2002042802A9 Optical polarization encoder
05/01/2003US20030084367 Fault recovery system and method for a communications network
05/01/2003US20030081893 Optical system and method
05/01/2003US20030081889 Optical communication link
05/01/2003US20030081306 DWDM optical source wavelength control
05/01/2003US20030081294 Free-space optical WDM communication system
05/01/2003US20030081286 Wavelength tunable multiplexing and demultiplexing filter device and wavelength routing device
05/01/2003US20030081285 Transmission device having wavelength-band-specific optical amplifiers provided commonly for all transmission lines
05/01/2003US20030081284 Optical communications system
05/01/2003US20030081283 Optical exchange for wavelength division multiplexed (WDM) network, and optical exchange method for WDM network
05/01/2003US20030081282 WDM transmission system, central controller for the system, and method for controlling preemphasis in the system
05/01/2003US20030081281 WDMA free space broadcast technique for optical backplanes and interplanar communications
04/2003
04/30/2003DE20300459U1 Optical filter unit for an optical wavelength multiplexing transmission (WDM) system has multiplex signal port, output ports and band pass structures
04/30/2003CN1415145A 光学分插滤光器 Drop optical filters
04/30/2003CN1414728A Full optical fibre shift light pulse sequence compression-expansion mode
04/30/2003CN1414407A Multiple bifucation/multiple connection or partial ware/combine wave device formed from single interference filter elements
04/29/2003US6556743 Optical signal add and drop apparatus
04/29/2003US6556742 Optical wavelength division multiplexed system using wavelength splitters
04/29/2003US6556341 Optical transmission system having cascaded raman
04/29/2003US6556328 Frequency stabilizing equipment for optical communication light source
04/29/2003US6556323 Demultiplexing and clock-recovery circuit
04/29/2003US6556322 Method of detecting one or more free channels in an optical time-division multiplex, a device for implementing it and the use of the device
04/29/2003US6556321 WDM optical network and switching node with pilot tone communications
04/29/2003US6556319 Split redundant trunk architecture using passive splitters and path switching
04/29/2003US6556297 Athermalization and pressure desensitization of diffraction grating based spectrometer devices
04/24/2003WO2003034629A1 Method for demultiplexing an optical data flow
04/24/2003WO2002049252A9 High-speed optical data network with improved optical receiver
04/24/2003WO2002043296A9 Birefringent interleaver for wdm fiber optic communications
04/24/2003WO2002037727A9 Optical routers and redundancy
04/24/2003WO2002035261A9 Method and apparatus for thermally compensating a birefringent optical element
04/24/2003US20030077038 Optical component, Optical encoder, Optical decoder, and Optical communication system
04/24/2003US20030077030 Protection in mixed optical wdm systems
04/24/2003US20030077029 Method and apparatus for optical wavelength demultiplexing, multiplexing and routing
04/24/2003US20030076790 Transmission device
04/24/2003US20030076581 Method and apparatus for monitoring of data channels
04/24/2003US20030076568 Light frequency stabilizer
04/24/2003US20030076560 Single fiber passive optical network wavelength division multiplex overlay
04/23/2003EP1304819A2 Central multi-wavelength source
04/23/2003EP1304775A2 Dispersion-compensated optical fiber amplifier
04/23/2003EP1304014A2 Optical node with add-drop or cross-connect functionality
04/23/2003EP1304013A2 Modular optical network node
04/23/2003EP1303961A1 Multichannel interferometer with phase generated carrier demodulation and quadrature error correction
04/23/2003EP1303775A1 Ultra-dense wavelength division multiplexing/demultiplexing devices
04/23/2003EP0880835B1 Wdm switching network
04/23/2003CN1413310A Method for altering refractive index of optial fibers using stress
04/23/2003CN1412969A Wavelength-division multiplex device and wavelength-division multiplex system
04/23/2003CN1412968A Notifying type dynamic path protection for optical network
04/23/2003CN1412967A Two-way optical fiber dispersion compensation device
04/23/2003CN1412966A Optical fiber dispersion compensation method and its device
04/22/2003US6552834 Methods and apparatus for preventing deadbands in an optical communication system
04/22/2003US6552833 Programmable optical add/drop multiplexer
04/22/2003US6552832 Telecommunications system including transmultiplexer installed between digital switch and optical signal transmission fiber
04/22/2003CA2314853C Optical wavelength-space cross-connect switch architecture
04/22/2003CA2084077C Fiber optics system
04/17/2003WO2003032550A2 Optical-inclusive dwdm local area network
04/17/2003WO2003032549A2 Digital optical network architecture
04/17/2003WO2003032548A1 Channel identification in communications networks
04/17/2003WO2003032547A2 Transmitter photonic integrated circuit
04/17/2003WO2003032534A2 Dynamic optical spectral control scheme for optical amplifier sites
04/17/2003WO2003032533A2 Optical amplifier control in wdm communications systems
04/17/2003WO2003032532A1 Optical signal transmission
04/17/2003WO2003032036A2 TRANSMITTER PHOTONIC INTEGRATED CIRCUIT (TxPIC) CHIP WITH ENHANCED POWER AND YIELD WITHOUT ON-CHIP AMPLIFICATION
04/17/2003WO2003032021A2 TRANSMITTER PHOTONIC INTEGRATED CIRCUITS (TxPIC) AND OPTICAL TRANSPORT NETWORKS EMPLOYING TxPICs
04/17/2003WO2002056128A3 High capacity network for numerous simultaneous streams
04/17/2003WO2002011339A3 Multiplexer, demultiplexer and add/drop multiplexer for single mode optical fiber communication links
04/17/2003US20030072522 Apparatus and method for wavelength division multiplexing
04/17/2003US20030072064 Supervisory controlling method and supervisory controlling system of optical repeater
04/17/2003US20030072059 System and method for securing a communication channel over an optical network
04/17/2003US20030072057 Virtual common space: using WDM in metro access networks
04/17/2003US20030072056 Wavelength division multiplexer and wavelength division multiplexing system
04/17/2003US20030072054 Optical power control monitor for multiple wavelength fiber-optic networks
04/17/2003US20030072053 Closed-loop optical network system and an associated transceiver and method for transmitting a plurality of optical signals
04/17/2003US20030072052 Optical wavelength plan for metropolitan photonic network
04/17/2003US20030072051 Orthogonal-code, photonic multiplexing
04/17/2003US20030071985 Method of measuring wavelength dispersion amount and optical transmission system
04/17/2003CA2463278A1 Transmitter photonic integrated circuits (txpic) and optical transport networks employing txpics
04/17/2003CA2461541A1 Optical signal transmission
04/17/2003CA2460722A1 Optical amplifier control in wdm communications systems
04/17/2003CA2458383A1 Channel identification in communications networks
04/16/2003EP1303160A2 Wavelength routing and switching mechanism for a photonic transport network
04/16/2003EP1303111A2 System and method for routing stability-based integrated traffic engineering for gmpls optical networks
04/16/2003EP1303110A2 Dynamic path protection for optical networks
04/16/2003EP1302009A1 Beam combiner
04/16/2003EP1301816A1 Technique for detecting the status of wdm optical signals
04/16/2003CN1411197A Plane oprical waveguide segmented Bragg optical grating interleaving apparatus/de-interleaving apparatus
04/16/2003CN1105926C High capacity optical fiber netword
04/15/2003US6549865 Method of controlling a dynamic gain controller
04/15/2003US6549701 Selectable wavelength channel filter for optical WDM systems
04/15/2003US6549697 Wavelength division multiplex optical signal regeneration method
04/15/2003US6549549 Method of stabilizing the wavelength of lasers and a wavelength monitor
1 ... 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 ... 271