Patents
Patents for H04J 14 - Optical multiplex systems (27,009)
05/1999
05/26/1999EP0918405A1 Channel control in a wavelength division multiplexed communications network
05/26/1999EP0917784A1 Method for optimising a mostly optical network
05/26/1999EP0917776A1 Spectral equalizer using reconfigurable holographic filter
05/26/1999EP0917775A1 System with feedback controlled optical amplifiers
05/26/1999EP0917774A2 System with optical amplifier
05/25/1999US5907429 For amplifying a wavelength multiplexed signal
05/25/1999US5907420 System and method for mitigating cross-saturation in optically amplified networks
05/25/1999US5907417 Passive optical network with diagnostic loop-back
05/20/1999WO1999025081A1 Optical wavelength converter
05/20/1999CA2308638A1 Optical wavelength converter
05/19/1999EP0917313A2 Optical transmission system and optical communications device
05/19/1999EP0917312A2 Wavelength division multiplex optical transmission apparatus
05/19/1999EP0917310A2 Method and apparatus for monitoring multi-wavelength optical systems
05/19/1999EP0917262A2 Wavelength selectable laser source
05/19/1999EP0916199A1 Bidirectional multichannel optical telecommunication system
05/19/1999EP0916198A1 Fault-tolerant optical routing switch
05/19/1999EP0916105A1 Optical module for access networks to wide band communication systems and relevant production method
05/18/1999US5905586 Two-way optical fiber communication system having a single light source
05/18/1999CA2132559C High-density optical wavelength division multiplexing
05/12/1999EP0915583A2 Wavelength division multiplex transmission apparatus
05/11/1999US5903560 Parallel optical transmission system and optical transmission apparatus
05/11/1999US5903385 Remotely pumping type multi-wavelength light transmission system
05/11/1999US5903376 Optical transmitter for an optical communication system in connection with a radio system
05/11/1999US5903371 Transparent optical self-healing-ring communication network
05/11/1999US5903368 Method and a system for optical communications with passive routing
05/11/1999CA2121955C Communication method in network system for performing information transmission among terminal equipments using light beams of a plurality of wavelengths, terminal equipment used in the method, and network system using the method
05/06/1999WO1999022259A1 Multiple wavelength bidirectional lightwave amplifier
05/06/1999WO1999012268A3 Method and system for modular multiplexing and amplification in a multi-channel plan
05/06/1999EP0914015A2 Optical switch, optical amplifier and optical power controller as well as optical add-drop multiplexer
05/06/1999EP0913962A2 Wavelength-multiplexing optical transmission system provided with wavelength selectors
05/06/1999DE19745323A1 Verfahren und Vorrichtung zum spektralen Pegelableich in MDW Vielkanalsystemen Method and apparatus for spectral Pegelableich MDW multi-channel systems
05/06/1999CA2306765A1 Multiple wavelength bidirectional lightwave amplifier
05/04/1999US5900970 Optical filter and optical transmission system having the same
05/04/1999US5900969 Broadband flat gain optical amplifier
05/04/1999US5900968 Method of fast gain control in WDM optical networks
05/04/1999US5900957 Optical packet-switched transmission network
05/04/1999CA2183912C Chirped-pulse multiple wavelength communications system
05/04/1999CA2146275C Wavelength division optical multiplexing elements
04/1999
04/29/1999WO1999021316A1 Remodulators for wdm optical communication systems
04/29/1999WO1999021304A1 Transceiver for wavelength multiplexing processes
04/29/1999WO1999021303A1 Optical transmission system
04/29/1999WO1999021302A1 Optical amplifier control
04/29/1999WO1999021039A1 Optical add/drop multiplexer
04/29/1999CA2307209A1 Optical add/drop multiplexer
04/29/1999CA2275700A1 Remodulators for wdm optical communication systems
04/28/1999EP0911999A2 Method and device for receiving optical wavelength-multiplexed signal
04/28/1999EP0911994A2 Optical signal power detection with signature bit pattern in WDM systems
04/28/1999EP0911928A2 Control method and apparatus for stabilising optical wavelength
04/28/1999CN1215273A Transmission device in loop network
04/28/1999CN1215268A Optical cross-connection unit, divided insertion multiplexer, light source unit and insertion unit
04/27/1999US5898801 Optical transport system
04/27/1999US5898697 Arrangement for defining a transmission delay in a subscriber network
04/22/1999WO1999020012A1 Transmission system for carrying out a wavelength division multiplex method
04/22/1999WO1999019768A1 Method and device for spectral levelling in wdb multi-channel systems
04/22/1999WO1999007087A3 Communication using spread spectrum methods over optical fibers
04/22/1999DE19746350A1 Transceiver for use in wavelength multiplex transmission processes
04/21/1999EP0910187A2 Coherent optical communication system
04/21/1999EP0910185A1 Soliton and wavelength division multiplexed optical fibre transmission system
04/21/1999EP0910183A2 Wavelength multiplexing transmission apparatus and wavelength demultiplexing reception apparatus
04/21/1999EP0910182A2 Optical transmission device and optical communication system
04/21/1999EP0910141A1 Optically amplifying fiber and amplifier with such a fiber
04/21/1999EP0910138A1 Sub-carrier multiplexing in broadband optical networks
04/21/1999CN1214581A Wavelength division multiplexed transmission system and transmitting method using the same
04/20/1999US5896217 Optical transmission system, optical multiplexing transmission system, and related peripheral techniques
04/20/1999US5896213 Optical fiber network system
04/20/1999US5896212 Wavelength division multiplexing optical communication network
04/20/1999US5896211 Optical communication system
04/16/1999CA2248890A1 System for transmitting soliton signals via optical fibre with wavelength-division multiplexing
04/15/1999WO1998053571A3 Distributed intelligence wavelength division multiplexed network
04/15/1999DE19746578A1 Communications network for the wavelength multiplex method
04/14/1999EP0909054A2 Light-wave network system with fault recovery
04/14/1999EP0908035A1 Optical tdma network
04/14/1999EP0908034A1 Optical transmission systems using optical amplifiers and wavelength division multiplexing
04/14/1999EP0908032A1 Switchable multi-drop video distribution system
04/14/1999EP0908029A1 Optical network
04/14/1999EP0907993A1 Optical amplifier modules
04/13/1999US5894362 Optical communication system which determines the spectrum of a wavelength division multiplexed signal and performs various processes in accordance with the determined spectrum
04/08/1999WO1999017501A1 A lightware transmission telecommunications system employing a stacked matrix architecture
04/08/1999WO1999017485A1 Optical channel regulator and method
04/08/1999WO1999017484A1 Method and system for managing optical subcarrier reception
04/08/1999WO1999017452A1 High-speed serial-to-parallel and analog-to-digital conversion
04/08/1999WO1999017410A1 Optical amplifier apparatus
04/08/1999CA2303841A1 Optical amplifier apparatus
04/08/1999CA2273991A1 A lightwave transmission telecommunications system employing a stacked matrix architecture
04/07/1999EP0907267A1 Compensation method for optical fibre transmission link and link terminals applying this method
04/07/1999EP0907266A2 Optical wave network system and method of monitoring a network trouble
04/07/1999EP0740892B1 Interconnected passive optical networks
04/07/1999CN1213473A Channel selection in optical TDMA network
04/06/1999US5892773 Radio frequency cable to optical fiber cable converter/interface
04/06/1999US5892608 Optical receiver device for dark soliton lightwave
04/06/1999CA2138828C Method and apparatus to compensate for differential attenuation in an optical time slot interchanger
04/06/1999CA2061041C Optical communications systems for the subscriber area with optical amplifiers
03/1999
03/31/1999EP0905937A2 Interleaved broadcast techniques for wavelength division multiplexed systems
03/31/1999EP0905936A2 WDM optical network with passive pass-through at each node
03/31/1999CN1212538A Multiplexed optical transmission systems
03/30/1999US5889904 Integrable fiberoptic coupler and resulting devices and systems
03/25/1999WO1999014879A2 Wavelength-selective optical switching apparatus
03/25/1999WO1999014873A1 Optical amplifier with gain adjustment
03/25/1999CA2300886A1 Wavelength-selective optical switching apparatus, optical communications apparatus using the same, and method for use in the optical communications apparatus
03/25/1999CA2248626A1 Wdm optical signal transmission apparatus