Patents
Sitemap › H04 - Electric communication technique › H04B - Transmission › 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
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)
06/2003
06/12/2003WO2003049336A2 Method for transmitting multi-level signals through dispersive media
06/12/2003WO2003049335A1 Optical amplifier
06/12/2003WO2003049334A2 Method for reducing optical carrier of signals circulating on an optical fiber, and device therefor
06/12/2003WO2003049333A1 Modulation control
06/12/2003WO2003049332A1 Photonic integrated device
06/12/2003WO2003049331A1 Optical external dpqsk modulator with subsequent prechirping
06/12/2003WO2003049330A1 Optical communication system
06/12/2003WO2003049329A1 An interface device for a fiberoptic communication network and methods of using such a device
06/12/2003WO2003049328A1 Optical transmitter apparatus
06/12/2003WO2003047651A2 Apparatus and methods for delivery of multiple distributed stents
06/12/2003WO2002047294A3 Optical performance monitoring for dwdm networks
06/12/2003US20030108353 Optical module, optical transmission apparatus, WDM optical transmission device, and method for stabilizing laser wavelength
06/12/2003US20030108351 Methods for ultra long-haul optical communications
06/12/2003US20030108315 Optical fiber transmission line, optical cable, and optical transmission system
06/12/2003US20030108313 Optical fiber transmission line, optical cable, and optical transmission system
06/12/2003US20030108282 Methods of connecting and testing interfaces for CWDM fiber-optic systems
06/12/2003US20030108281 Interface device for a fiberoptic communication network and methods of using such a device
06/12/2003US20030108271 Optical data throughput protection switch
06/12/2003US20030108270 Visible light tracer for high power-carrying optical fibers
06/12/2003US20030108267 Device for detecting the pmd of optoelectronic transmission lines
06/12/2003US20030107792 Device for generating, adding and subtracting digital sequences of optical pulses
06/12/2003US20030107791 Apparatus and method for controlling electro-optic modulator
06/12/2003US20030107790 Optical wavelength conversion device
06/12/2003US20030107333 Driving circuit for light emitting element, and optical communication device using same
06/12/2003US20030106990 Optical amplifier
06/12/2003CA2469142A1 Optical network communication system
06/12/2003CA2469127A1 Apparatus and methods for delivery of multiple distributed stents
06/12/2003CA2468110A1 Methods of connecting and testing interfaces for cwdm fiberoptic systems
06/11/2003EP1318639A1 Digital transmission system with receiver using parallel decision circuits
06/11/2003EP1318627A2 Optical clock phase-locked loop circuit
06/11/2003EP1318622A2 Polarisation mode dispersion measurement and compensation
06/11/2003EP1318621A2 Optical amplifier and optical communication system including the same
06/11/2003EP1318620A2 Optical amplifier
06/11/2003EP1318490A2 Manufacturing system incorporating telemetry and/or remote control
06/11/2003EP1317789A1 Large current watchdog circuit for a photodetector
06/11/2003EP1101141A4 Laser communication system and methods
06/11/2003EP1025661B1 Transceiver for wavelength multiplexing processes
06/11/2003CN2555511Y Electrostatic micromechanical whole light switch
06/11/2003CN1423853A Method and device for regulating a medium with an amplifying effect, especially a fiber optical waveguide
06/11/2003CN1423754A Bus configuration for optically interconnecting a plurality of calculation units
06/11/2003CN1423446A Pluggable optical plug-in and complexing module
06/11/2003CN1423445A Method for transmitting wavelength number optimized WDM system power management by optical monitoring channel
06/11/2003CN1423444A Optical wave-division complexing/decomplexing apparatus with optical power detection
06/11/2003CN1423162A Modulated optical attenuator
06/10/2003US6577877 Wireless infrared peripheral interface for a communication device
06/10/2003US6577800 Optical fiber for metropolitan and access network systems
06/10/2003US6577789 Double-pass optical amplifiers and optical network equipment
06/10/2003US6577788 Gain equalization system and method
06/10/2003US6577786 Device and method for optical performance monitoring in an optical communications network
06/10/2003US6577782 Direct space-to-time pulse shaper and optical pulse train generator
06/10/2003US6577655 Control circuit for a radiation source, apparatus comprising the control circuit, optical transmitter comprising the control circuit, and method for controlling a radiation source
06/10/2003US6577652 Optical add-drop multiplexer of WDM optical signals
06/10/2003US6577439 Optical amplifier
06/10/2003US6577438 Method and apparatus for monitoring and controlling gain tilt in an optical amplifier
06/10/2003US6577437 Optical amplification apparatus utilizing Raman amplification and controlling method thereof
06/10/2003US6577426 Optical arrangement for full duplex free space infrared transmission
06/10/2003US6577424 Chromatic dispersion compensator providing dispersion compensation to select channels of a wavelength division multiplexed signal
06/10/2003US6577423 Optical transmission systems, optical receivers, and receiving methods
06/10/2003US6577422 Long reach delivery of broadcast services using broadband optical sources and pre-compensation dispersion
06/10/2003US6577421 Alignment system and method for optical satellite communication
06/10/2003US6577420 Reduction of modal noise in step-index fiber bundles
06/10/2003US6577419 Optical-frequency communications system for aircraft
06/10/2003US6577417 Heterodyne-wavelength division demultiplexing for optical pick-ups, microscopy, tomography telecommunication and lidar
06/10/2003US6577416 Channel control in a wavelength division multiplexed communications network
06/10/2003US6577415 Optical add-drop module with low loss and high isolation
06/10/2003US6577413 Method and apparatus for polarization multiplexing and demultiplexing optical tributary signals
06/10/2003US6577399 Optical waveguide based power and wavelength monitor
06/10/2003US6577385 Optical time-domain reflectometer capable of determining when a test of an optical fiber should be conducted
06/10/2003US6576833 Cable detect and EMI reduction apparatus and method
06/10/2003US6575790 Detachable connecting system
06/10/2003CA2257518C Split-pumped dual stage optical fiber amplifier
06/05/2003WO2003047145A2 Methods and devices to minimize the optical loss when multiplexing a plurality of tunable laser sources
06/05/2003WO2003047143A1 A method and apparatus of light signal modulation in light
06/05/2003WO2003047131A1 Communication system by terminal with no power supply
06/05/2003WO2003047130A1 A cellular communication system employing wireless optical links
06/05/2003WO2003046623A2 Waveguide optical fiber for amplification within s-band optical range
06/05/2003WO2003046614A2 Smart single fiber optic transceiver
06/05/2003WO2003046504A1 System and method for monitoring optical fiber cables
06/05/2003WO2003007024A3 Fiber optic telecommunications card with security detection
06/05/2003WO2002091029A3 Split redundant trunk architecture using passive splitters and path switching
06/05/2003WO2002058289A3 Optical broadband transmission device and distribution method
06/05/2003US20030103772 Optical transmitter and optical transmission system
06/05/2003US20030103771 Spread polarization transmitter and associated system and method of operation
06/05/2003US20030103749 Dispersion slope compensating optical fiber
06/05/2003US20030103723 Compensation system for adaptive equalization of an optical signal
06/05/2003US20030103252 Method and system for monitoring performance of optical network
06/05/2003US20030101575 Manufacturing system incorporating telemetry and/or remote control
06/05/2003CA2413439A1 Pmd measurement and compensation
06/04/2003EP1317162A2 Backbone interface, terminal communication interface for spacial vehicle and communication network comprising such interfaces
06/04/2003EP1317095A1 Frequency detection circuit for an optical receiver using two parallel bandpass filters with shifted centre frequencies
06/04/2003EP1317089A2 Attenuation devices
06/04/2003EP1317088A1 Method and apparatus for remote testing of optical cables using a test wavelength
06/04/2003EP1317084A2 Optical amplifier arrangement
06/04/2003EP1317083A2 Optical transmission system and optical transmission method utilizing Raman amplification
06/04/2003EP1317037A2 Optical amplifier
06/04/2003EP1316166A2 Pump power monitor system and method for gain control of optical amplifier
06/04/2003EP1316164A1 Wireless communication receiver using a totally internally reflecting concentrator
06/04/2003EP1316163A2 Optical hinge apparatus
06/04/2003EP0968579B1 Multiple stage optical fiber amplifier
06/04/2003CN2554639Y Multiplex expended micro-mechanical photoswitch array
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