Patents
Patents for H04B 10 - Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication (73,125)
10/2001
10/03/2001CN1315789A Broad-band full-service integrated network access method
10/03/2001CN1072429C Wireless selective call receiver and system for writing desired data in same
10/03/2001CN1072414C Process and circuit arrangement for transmitting received signals from antenna to base station of radio system
10/02/2001US6298187 High power fiber gain media system achieved through power scaling via multiplexing
10/02/2001US6298074 Mode-locked fiber laser and fiber amplifier using single pump laser
10/02/2001US6298027 Low-birefringence optical fiber for use in an optical data storage system
10/02/2001US6297902 Light amplification medium control method, light amplification apparatus and system using the same
10/02/2001US6297897 Method and arrangement for optical information transmission via satellites
10/02/2001US6297896 Optical switch and optical communication system using the same
10/02/2001US6297895 Wavelength division multiplexing system, wavelength division multiplexing transmission system and optical path cross connection system
10/02/2001US6297802 Wireless communication system having a plurality of transmitting parts one of which is selectively used
10/02/2001US6297487 Device for generating an electrical control signal according to the position of a light beam
10/02/2001US6296361 Optical apparatus which uses a virtually imaged phased array to produced chromatic dispersion
10/02/2001CA2228781C Optical switch, method of manufacturing same, and optical communication equipment using same
09/2001
09/30/2001CA2342279A1 Ultra-linear laser drive circuit
09/30/2001CA2341983A1 Wavelength multiplexing system, wavelength adjusting system, and optical transmitter
09/30/2001CA2339577A1 Optical waveform for use in a dwdm optical network and systems for generating and processing same
09/30/2001CA2337598A1 Apparatus for demultiplexing/multiplexing optical signals modulated with different data rates in wdm systems
09/27/2001WO2001071959A2 Method and system of transmitting optical signals generated by multi-line sources via wdm optical network
09/27/2001WO2001071952A1 Wireless communication systems
09/27/2001WO2001071951A2 Method and system for non-soliton transmission of short pulse signals via an optical fiber
09/27/2001WO2001071950A2 Apparatus for distributing optical fiber transmission paths
09/27/2001WO2001071944A1 Array antenna base station apparatus
09/27/2001WO2001071932A1 Transmission device
09/27/2001WO2001071398A1 Method and apparatus for estimating chromatic dispersion in fibre bragg gratings
09/27/2001WO2001033757A3 Method and system for communication protection
09/27/2001WO2001033756A3 Method and system for transmitting optical communication signals
09/27/2001WO2001033745A3 Method and device for optimizing an optical transfer signal modulated with a binary data signal
09/27/2001US20010024544 Optical transmission system and optical coupler/branching filter
09/27/2001US20010024542 Method and device for dropping optical channels in an optical transmission system
09/27/2001US20010024540 Optical node system and switched connection method
09/27/2001US20010024538 Polarization-mode dispersion emulator
09/27/2001US20010024315 Opto-electronic frequency divider circuit and method of operating same
09/27/2001US20010024307 Method for the reduction of noise in a long-distance optical telecommunications system
09/27/2001US20010024306 Dispersion-compensating module, line switching apparatus and optical communication system
09/27/2001US20010024305 Optical node device and signal switching and connection method
09/27/2001US20010024304 Optical transmission system and method
09/27/2001DE10035083A1 PMD-compensator for compensating polarization mode conditioned distortions in optical transmission systems, esp. transmission fibers, uses polarization transformation element
09/27/2001DE10033819A1 Method of ascertaining the polarization mode dispersion (PMD) of a transmission system esp. a transmission laser, using a tunable optical element in the form of a narrow-band laser
09/27/2001DE10013718A1 Broadband thermal light source for optical communications system has amplified spontaneous emission emitter with input connected to laser diode and output to transmission path
09/27/2001DE10013489A1 Optical network element has switching matrix between optical receivers and transmitters, another transmitter for digital optical signal with frame structure synchronized to reference clock
09/27/2001DE10013197A1 Amplitude modulation method for optical signal
09/27/2001DE10012881A1 Raman amplifier arrangement enabling optimal amplification of optical signals using the Raman effect
09/27/2001DE10012270A1 Optical header for optical data bus system, has optical gate electronically switched to state of minimum insertion loss during partial failure of electronic component
09/26/2001EP1137311A2 Optical network element
09/26/2001EP1137308A2 Programmable optical switch apparatus
09/26/2001EP1137307A2 Optical node system and connection method
09/26/2001EP1137213A2 Optical TDM multiplexer, optical TDM demultiplexer, WDM/TDM converter and TDM/WDM converter
09/26/2001EP1137208A1 Synchonous optical regenerator using intensity modulation and phase modulation with cross-Kerr effect
09/26/2001EP1137207A2 Optical attenuator including dual control loops
09/26/2001EP1137206A2 Wideband thermic light source as well as optical transmission system using it
09/26/2001EP1137205A1 An apparatus and method for identifying active fibers in a fiber distribution frame
09/26/2001EP1137204A1 Multiwavelength light source device employing annular optical delay circuit
09/26/2001EP1137129A2 Optical gain equalizer and optical gain equalizing method
09/26/2001EP1137128A2 Optical component
09/26/2001EP1136865A2 Optical receiver
09/26/2001EP1136850A1 Optical fiber line, optical transmission line, production method of optical cables and method of laying optical transmission lines
09/26/2001EP1136797A2 Polarity-independent optical receiver and method for fabricating same
09/26/2001EP1135707A2 Array and method for monitoring the performance of dwdm multiwavelenght systems
09/26/2001CN2450830Y High isolation wavelength-division multiplexer
09/26/2001CN2450829Y Dense wavelength division multiplexer
09/26/2001CN2450828Y Optical cable real time monitoring device
09/26/2001CN2450827Y Optoelectronic transmitter-receiver for radio communication apparatus
09/26/2001CN1315093A WDM ring network
09/26/2001CN1315076A Optical amplifiers and optical transmission line
09/26/2001CN1071961C Optical transmission line and method of forming thereof
09/25/2001US6295396 Method and apparatus for higher-order chromatic dispersion compensation
09/25/2001US6295161 Twin coupler with mode scrambling for multimode pumping of optical amplifiers
09/25/2001US6295152 Optical receiver for receiving digitally transmitted data
09/25/2001US6295151 Optical transmission and receiving equipment
09/25/2001US6295150 Wavelength division multiplexing device
09/25/2001US6295148 Optical network for transmitting two-way multicast signals
09/25/2001US6295147 Wavelength multiplexing transmission apparatus and wavelength demultiplexing reception apparatus
09/25/2001US6295146 System and method for sharing a spare channel among two or more optical ring networks
09/24/2001CA2341816A1 Optical amplifier with active-fiber loop mirror
09/22/2001CA2337548A1 Optical waveguide gratings device with adjustable optical spacing profile
09/20/2001WO2001069822A1 Dispersion compensator
09/20/2001WO2001069821A1 Raman amplifier system
09/20/2001WO2001069819A1 Method and system for amplitude modulation of an optical signal
09/20/2001WO2001069818A1 Optical monitor
09/20/2001WO2001069817A1 Optical communication interface module connected to electrical communication interface module of i2c communication protocol
09/20/2001WO2001069313A1 Helical fiber amplifier
09/20/2001WO2001019003A3 Positively chirped signals in optical communication systems
09/20/2001WO2001009992A3 Extreme broad bandwidth erbium doped amplifier
09/20/2001WO2000016489A3 Wireless optical communications without electronics
09/20/2001US20010022878 Optical signal processing device using optical gate
09/20/2001US20010022875 Optical cross-connect apparatus, and its signal monitoring method
09/20/2001US20010022874 Optical gain equalizer and optical gain equalizing method
09/20/2001US20010022684 Optical amplifier and wavelength multiplexing optical transmission system
09/20/2001US20010022683 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
09/20/2001US20010022678 Synchronous optical regenerator using intensity modulation and phase modulation by the crossed kerr effect
09/20/2001US20010022676 Optical wavelength multiplex transmission method and optical dispersion compensation method
09/20/2001DE10020267A1 Reducing stimulated Brillouin scattering during transmission of optical signal via optical fibre by continuously varying polarization
09/20/2001DE10011287A1 Optischer Empfänger Optical Receiver
09/20/2001CA2403206A1 Dispersion compensator
09/19/2001EP1134999A2 Ultra-highspeed packet transfer ring network
09/19/2001EP1134998A2 Apparatus and method for automatic port identity discovery in heterogenous optical communications systems
09/19/2001EP1134925A2 Optical transmission system including performance optimization
09/19/2001EP1134917A2 Generating methods for single and multi-channel wideband optical analog pulse positioned waveforms
09/19/2001EP1134859A1 Optical amplifying device