H04J 14 - Optical multiplex systems

Patents for H04J 14 - Optical multiplex systems (27,009)
11/2002
11/28/2002	WO2002071132A3 Methods and apparatus for diffractive optical processing using an actuatable structure
11/28/2002	WO2001018921A9 Multifunction optical transmitter for dwdm system
11/28/2002	US20020178417 Communication channel optimization using forward error correction statistics
11/28/2002	US20020177965 Mehtod of controlling a dynamic gain controller
11/28/2002	US20020176645 Polarization mode dispersion compensation in optical transmission media
11/28/2002	US20020176457 Apparatus and method for wavelength-locked loops for systems and applications employing electromagnetic signals
11/28/2002	US20020176432 Hitless protection switching
11/28/2002	US20020176356 Hitless protection switching
11/28/2002	US20020176151 Dynamic optical filter having a spatial light modulator
11/28/2002	US20020176149 Variable optical source
11/28/2002	US20020176144 Optical transmission system using optical signal processing in terminals for improved system performance
11/28/2002	US20020176137 Apparatus and methods for maintaining balanced communication channels with increasing service demands
11/28/2002	US20020176135 Multiplexer and demultiplexer for single mode optical fiber communication links
11/28/2002	US20020176134 Dynamically reconfigurable add/drop multiplexer with low coherent cross-talk for optical communication networks
11/28/2002	US20020176132 Differential dense wavelength division multiplexing (DDWDM) in optical systems
11/28/2002	US20020176131 Protection switching for an optical network, and methods and apparatus therefor
11/28/2002	US20020176130 Optical network with fault/normal pattern tables for identifying location of path failure
11/28/2002	US20020176129 Performance monitoring in an optical communication system
11/28/2002	US20020176080 Polarization compensator and wavelength division multiplexing apparatus using same
11/28/2002	CA2458848A1 Hybrid wdm/tdm network architecture
11/28/2002	CA2349029A1 Integrated optical add-drop multiplexer (oadm) using optical waveguide mirrors and multiplexer/demultiplexer
11/27/2002	EP1261160A2 Optical add drop multiplexer
11/27/2002	EP1261159A1 Differential dense wavelength division multiplexing (DDWDM) in optical systems
11/27/2002	EP1261157A2 Hitless protection switching
11/27/2002	EP1261153A1 Optical module for a parallel dispersion management
11/27/2002	EP1260044A1 Method and apparatus for polarization multiplexing and demultiplexing optical tributary signals
11/27/2002	EP1260043A1 Arrangement for producing a wavelength-multiplex signal with small interchannel spaces
11/27/2002	EP1260040A1 Method for transmitting additional optical signals in the s-band
11/27/2002	EP1259839A1 Interleaving optical filter
11/27/2002	CN2523124Y Dynamic gain flattener based on long-period optical fibre raster
11/27/2002	CN2523123Y 密集波分复用模组 Dense Wavelength Division Multiplexing Module
11/27/2002	CN2523122Y Dense wavelength division multiplexing apparatus
11/27/2002	CN1381963A Multi-grain optical router based on optical burst switch
11/27/2002	CN1381962A Waveform regulation structure and method for optical filter of DWDM transmission system
11/26/2002	US6487405 Communication system with multicarrier telephony transport for controlling a plurality of service units
11/26/2002	US6487335 Distributed filter for DWDM cascade device using Mach-Zehnder interferometers
11/26/2002	US6487334 Optical switch
11/26/2002	US6487332 Strictly non-blocking wavelength division multiplexed (WDM) cross-connect device for use in a heterogeneous network
11/26/2002	US6487329 Non-blocking wavelength router architecture with wavelength reuse capability
11/26/2002	US6486993 Wavelength dispersion compensation apparatus in wavelength multiplex transmission system
11/26/2002	US6486991 Optical transmission system having an optical surge suppression function
11/26/2002	US6486990 Method and apparatus for communicating a clock signal in a soliton optical transmission system
11/26/2002	US6486989 Optical communications terminal station, optical signal transmission method, and optical signal increasing method in wavelength multiplexing system
11/26/2002	US6486988 Upgrading optical communications systems without traffic interruption
11/26/2002	US6486987 Circuit arrangement for the operation of wavelength division multiplexing
11/26/2002	US6486986 System for optically transmitting frequency-division-multiplexed signal and transmitter therefor
11/26/2002	US6486985 Method for transmitting an additional data signal and a useful data signal in an optical network
11/26/2002	US6486984 Wavelength monitor using hybrid approach
11/26/2002	US6486958 Method and system for optical spectrum analysis with matched filter detection
11/26/2002	US6486950 Multi-channel wavelength monitor
11/26/2002	CA2245873C Optical pulse source
11/26/2002	CA2230294C Apparatus and method for digital data transmission
11/23/2002	CA2381682A1 Performance monitoring in an optical communication system
11/21/2002	WO2002093806A1 Signal addition to a wave division multiplex system
11/21/2002	WO2002093793A1 Optical communication method and optical communication system
11/21/2002	WO2002093686A1 Reverse path optical combining using an optical commutator
11/21/2002	WO2002093221A2 Integrated optical ring resonators for optical signal analysis
11/21/2002	WO2002080429A3 Method and apparatus for optical data transmission at high data rates with enhanced capacity using polarization multiplexing
11/21/2002	WO2002079821A3 Optical demultiplexers based on arrayed waveguide grantings (awg) analysing te-and tm-polarisation directions
11/21/2002	WO2002079816A3 All optical data selection element
11/21/2002	WO2002075999A3 Method and apparatus for interconnecting a plurality of optical transducers with a wavelength division multiplexed optical switch
11/21/2002	WO2002065181A3 Optical waveguide bragg grating system
11/21/2002	WO2002035261A3 Method and apparatus for thermally compensating a birefringent optical element
11/21/2002	WO2001099347A3 Shared optical ring protection in a multi-fiber ring
11/21/2002	US20020174207 Self-healing hierarchical network management system, and methods and apparatus therefor
11/21/2002	US20020173332 Optical communication system with dynamic bandwidth allocation
11/21/2002	US20020173089 Vertical cavity surface emitting laser with buried dielectric distributed bragg reflector
11/21/2002	US20020172453 Network healing smart fiber optic switch
11/21/2002	US20020172239 Tunable external cavity laser
11/21/2002	US20020172150 Transmission unit and failure recovery method
11/21/2002	US20020171914 Bidirectional multichannel optical telecommunication system
11/21/2002	US20020171891 Optical apparatus using a 2D-spatial light modulator
11/21/2002	US20020171890 Optical add/drop multiplexer using integrated optical components
11/21/2002	US20020171889 Light-transmitting apparatus and wavelength-division-multiplexing communication system having optical-signal-abnormality-detecting function
11/21/2002	US20020171888 Hybrid WDM/TDM network Architecture
11/21/2002	US20020171884 High efficiency optical traffic monitoring and reporting
11/21/2002	DE10120276A1 Verfahren und Übertragungssystem zur Optimierung der Übertragungseigenschaften eines optischen Wellenlängen-Multiplex-Systems A method and transmission system for optimizing the transmission characteristics of an optical wavelength multiplexing system
11/20/2002	EP1259014A2 DWDM network
11/20/2002	EP1257858A1 Wavelength controlled fbg filter
11/20/2002	CN1380757A Burst time-delay control device in ATM passive optic network system and its implement method
11/20/2002	CN1380561A Optical mark production and extraction device
11/19/2002	US6483637 System and method for per-band optical amplification
11/19/2002	US6483636 Optical amplifier
11/19/2002	US6483632 Multistage optical amplifier with gain flattening
11/19/2002	US6483630 Optical amplifier, method of controlling the output light from the optical amplifier, optical transmission system and method of controlling an optical transmission path cross reference to related application
11/19/2002	US6483625 WDM optical transmission apparatus
11/19/2002	US6483618 Narrow band wavelength division demultiplexer and method of demultiplexing optical signals
11/19/2002	US6483616 Safe repair of malfunction in optical communication system
11/19/2002	CA2270738C Circuit for monitoring optical signals
11/14/2002	WO2002091660A1 Method and system for communicating a clock signal over an optical link
11/14/2002	WO2002091646A1 Method and system for coordinating and utilizing channel power information in an optical communications network
11/14/2002	WO2002091645A1 Method and system for demultiplexing non-intensity modulated wavelength division multiplexed (wdm) signals
11/14/2002	WO2002091644A1 Receiver and method of receiving a multichannel optical signal
11/14/2002	WO2002091638A1 Method and system for transmitting information in an optical communication system using distributed amplification
11/14/2002	WO2002091636A2 Terrestrial optical communication network of integrated fiber and free-space links which requires no electro-optical conversion between links
11/14/2002	WO2002091635A1 Method and system for determining channel power in an optical communications network
11/14/2002	WO2002091634A2 Method and system for tuning an optical signal based on transmission conditions
11/14/2002	WO2002091065A1 A method for searching and tracking wavelength with variable step-length
11/14/2002	WO2002091045A2 Compact tunable optical wavelength interleaver
11/14/2002	WO2002091029A2 Split redundant trunk architecture using passive splitters and path switching

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