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)
04/2003
04/01/2003US6542723 Optoelectronic phase locked loop with balanced photodetection for clock recovery in high-speed optical time division multiplexed systems
04/01/2003US6542678 High-dispersion fibers for high-speed transmission
04/01/2003US6542666 Optical component
04/01/2003US6542661 Method for upgrading bandwidth in an optical system utilizing Raman amplification
04/01/2003US6542660 Method and system for increasing a number of information channels carried by optical waveguides
04/01/2003US6542655 N×N crossconnect switch using wavelength routers and space switches
04/01/2003US6542650 Polarization-mode dispersion emulator
04/01/2003US6542647 Optical signal transmission system and magneto-optical modulator designed to establish modulation over wide range for use in the same
04/01/2003US6542460 Relating to multidirectional communication systems
04/01/2003US6542291 Optical amplifier excitation light source control method for use in optical amplifier and optical amplifier control method
04/01/2003US6542290 Optical amplifier
04/01/2003US6542289 Gain saturation tuning in optical amplifiers
04/01/2003US6542288 Optical amplifier utilizing rare earth element-doped optical fibers for temperature compensation
04/01/2003US6542287 Optical amplifier systems with transient control
04/01/2003US6542280 Return-to-zero optical modulator with configurable pulse width
04/01/2003US6542277 Optically amplified back-up receiver
04/01/2003US6542276 Method and apparatus for increasing the spectral efficiency of dense wavelength division multiplexed systems
04/01/2003US6542275 Dispersion compensating element having substantially uniform spectral nonlinearity
04/01/2003US6542274 Method and apparatus for recovering an optical clock signal
04/01/2003US6542272 Control signal transmission method and apparatus for optical transmission system
04/01/2003US6542271 Apparatus and method for reducing optical impairments in optical communications systems and networks
04/01/2003US6542270 Interference-robust coded-modulation scheme for optical communications and method for modulating illumination for optical communications
04/01/2003US6542269 Optical device for processing an optical impulse
04/01/2003CA2273020C Optical channel regulator and method
03/2003
03/28/2003CA2405180A1 Raman amplification
03/28/2003CA2404895A1 Remote modules in optical communications links
03/27/2003WO2003026239A1 Optical reception apparatus
03/27/2003WO2003026167A1 Improvements in or relating to signal transmission in an optical system
03/27/2003WO2003026166A2 A method and system for free-space communication
03/27/2003WO2003026165A1 Integrated optical transmitter, receiver for free space optical communication and network system and application apparatus thereof
03/27/2003WO2003026164A1 Optical transmitter, receiver for free space optical communication and network system and application apparatus thereof
03/27/2003WO2003000008A3 High speed electro-optic clock recovery circuit
03/27/2003WO2002100007B1 Device for hybrid connection between optical fibres and lines transporting electric signals, and network incorporating same
03/27/2003WO2002027981A1 Raman amplifier
03/27/2003WO2002017522A3 Method and system for transmitting signals with spectrally enriched optical pulses
03/27/2003WO2002014938A9 High speed polarization mode dispersion compensator
03/27/2003WO2001089119A3 Variable rate high-speed input and output in optical communication networks
03/27/2003WO2001080463A3 Integrated optics encryption device
03/27/2003WO2001067659A9 Optical power managed network node for processing dense wavelength division multiplexed optical signals
03/27/2003US20030061390 Method of synchronizing parallel optical links between communications components
03/27/2003US20030060171 Millimeter-wave communications link with adaptive transmitter power control
03/27/2003US20030059186 L-band dispersion compensating fiber and transmission system including same
03/27/2003US20030059160 Optical clock signal distribution system in WDM network
03/27/2003US20030059158 Broadcast network using multi-fiber cable
03/27/2003US20030059156 Bifurcated optical and power connectivity for ultra long-haul optical communication systems
03/27/2003US20030059154 Optical switching system and optical switching method
03/27/2003US20030058790 Ring switching method and node apparatus using the same
03/27/2003US20030058524 Raman amplifier, optical repeater, and raman amplification method
03/27/2003US20030058523 Multi-stage optical amplifier and broadbband communication system
03/27/2003US20030058519 Apparatus and method for optical modulation
03/27/2003US20030058516 Dynamic spectral equalizer and wavelength selective switch having extremely low polarization dependent loss and polarization mode dispersion
03/27/2003US20030058512 Frequency guiding filter for dispersion managed soliton transmission
03/27/2003US20030058511 Method and system for transmitting a signal via a non linear transmission unit
03/27/2003US20030058510 First and second derivative processing of wavelength multiplexed optical signals
03/27/2003US20030058509 Optical vestigial sideband (VSB) transmission
03/27/2003US20030058508 RZ optical transmission
03/27/2003US20030058507 Optical transmitter and wavelength division multiplexing transmission system
03/27/2003US20030058506 Optical free space signalling system
03/27/2003US20030058505 Passive distribution of wavelengths in optical networks
03/27/2003US20030058504 Method and system for mitigating nonlinear transmission impairments in fiber-optic communications systems
03/27/2003US20030058501 Wireless communication system comprising a host and a guest, and method associated herewith
03/27/2003US20030058500 Optical signal processing system
03/27/2003US20030058499 Method and system for optical time division multiplexed fiber communications with coherent detection
03/27/2003US20030058497 All-optical switching sites for an agile optical network
03/27/2003US20030058496 Topology discovery in optical WDM networks
03/27/2003US20030058495 CS-RZ optical clock signal generator, and a resynchronized optical multiplexer containing such a generator
03/27/2003US20030058494 Control of parameters in a global optical controller
03/27/2003US20030058493 Optical communication system
03/27/2003US20030058262 Information transmission system using light as communication medium, information transmission method, image pickup device, and computer programmed product
03/27/2003US20030057886 Methods and apparatus for controlling devices in a networked lighting system
03/27/2003US20030057351 Light wavelength meter
03/27/2003CA2462578A1 Improvements in or relating to signal transmission in an optical system
03/26/2003EP1296472A2 Device for compensating distortion of optical signals
03/26/2003EP1296471A2 Compensation arrangement for adaptive equalization of an optical signal
03/26/2003EP1296470A2 Optical transmission systems using optical amplifiers and wavelength division multiplexing
03/26/2003EP1296469A1 Decision device for a modulated electrical signal
03/26/2003EP1296468A1 Modulation method and bit error detection in optical transmission systems
03/26/2003EP1296423A1 Optical amplifier device
03/26/2003EP1295424A2 Polarization division multiplexer
03/26/2003EP1295422A1 Arrangement and method relating to switched telecommunications
03/26/2003EP1295416A2 Method for determining the optimum pre-compensation in an optical transmission system
03/26/2003EP1295415A1 Optimal dispersion compensation for return-to-zero transmission over non-zero dispersion shifted fibers
03/26/2003EP1295414A1 Method and arrangement for measuring the optical signal quality in a fiber network using optical cross-connectors
03/26/2003EP1295413A1 Reflectometer with non - reciprocal optical components
03/26/2003EP1295369A1 Wavelength selectable fiber laser system
03/26/2003EP1295368A1 Universal controller for an optical amplifier
03/26/2003EP0890229B1 Method of determining optical amplifier failures
03/26/2003CN2541857Y High precision device
03/26/2003CN1406418A Application of digital processing scheme for enhanced cable television dnetwork performance
03/26/2003CN1406342A Circularly polarized fiber in optical circuits
03/26/2003CN1406021A Channel distribution device of optical monitoring channel-unit in wave-division multiplexing system
03/26/2003CN1406020A Integrated de-multiplexer for use in sparse wave-division multiplexer
03/26/2003CN1406019A Controller for controlling changeable light attenuator
03/26/2003CN1406018A Controller for controlling changeable light attenuator
03/26/2003CN1406017A Controller for controlling changeable light attenuator
03/26/2003CN1406016A Controller for controlling changeable light attenuator
03/26/2003CN1406000A Channel speed regulator light-burst-bag exchange network core node
03/26/2003CN1405999A Buffer-storage-free photo-exchanging matrix based on sharing wavelength convertor
03/26/2003CN1405998A Optical-fibre signal interface circuit
03/26/2003CN1405997A Infrared tour-guiding system
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