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)
04/2000
04/12/2000CN1250325A Radio signal sender
04/12/2000CN1250283A Tunable increasing wave/decaying wave multiplexer
04/12/2000CN1250282A Light increasing-downleading multiplexer and wave division multiplex optical chain-circuit
04/12/2000CN1250275A 100 Mbps optical fiber transceiver for communication in computer Ethernet
04/12/2000CN1250274A 10 Mbps optical fiber transceiver for communication in computer Ethernet
04/11/2000US6049593 Hybrid universal broadband telecommunications using small radio cells interconnected by free-space optical links
04/11/2000US6049417 Wide band optical amplifier
04/11/2000US6049416 Erbium-doped fiber amplifiers with desired gain-bandwidth characteristics
04/11/2000US6049414 Temperature-compensated rare earth doped optical waveguide amplifiers
04/11/2000US6049405 Optical node in an optical bus network
04/11/2000US6049404 N+M digitally programmable optical routing switch
04/11/2000US6049175 Arrangements relating to light emitting devices
04/11/2000CA2196556C Quantum cryptography
04/11/2000CA2195259C Optical signal shaping device for complex spectral shaping applications
04/11/2000CA2185289C Optical network
04/06/2000WO2000019651A2 Improvement in optical multichannel systems
04/06/2000WO2000019642A1 Information system
04/06/2000WO2000001098A9 Dispersion compensating element having substantially uniform spectral nonlinearity
04/06/2000DE19845701A1 Anordnungen zur Überwachung der Performance von DWDM-Mehrwellenlängensystemen Arrangements for monitoring the performance of multi-wavelength DWDM systems
04/05/2000EP0991286A2 Portable telephone and automobile system
04/05/2000EP0991217A2 Low cost WDM system
04/05/2000EP0991152A2 An optical filter for use in or with an optical amplifier
04/05/2000EP0625295B1 Optical signal transmission network
04/05/2000CN1249871A Switchable wavelength router
04/05/2000CN1249857A Stabilized DFB laser
04/05/2000CN1249823A Optical device
04/05/2000CN1249813A Polarization mode dispersion measuring method, and dispersion compensation control device and dispersion compensation control method
04/05/2000CN1249578A Method for implementing service routing in synchronous optical transmission system
04/05/2000CN1249577A Forward error correction for high-speed optical transmission system
04/05/2000CN1249576A Method for identifying light path
04/05/2000CN1051185C High stability optic fibre LD emission modules
04/05/2000CA2282938A1 Device for regenerating a wavelength-multiplexed signal including a saturable absorbent
04/04/2000US6046841 All-optical wavelength conversion system comprising an optical discriminator
04/04/2000US6046838 Automatic bias control for electro-optic modulators
04/04/2000US6046833 Method and apparatus for operation, protection, and restoration of heterogeneous optical communication networks
04/04/2000US6046813 Wavelength detecting device
04/04/2000US6046461 Semiconductor integrated circuit device
04/04/2000CA2170548C Signal processing techniques based upon optical devices
04/04/2000CA2140802C Optical fiber system and method for overcoming the effects of polarization gain anisotropy in a fiber amplifier
03/2000
03/31/2000WO2000060800A1 Method and arrangement for measuring the signal quality in an optical transmission system
03/30/2000WO2000018047A2 Pre- and post-compensation techniques for wavelength division multiplexing systems
03/30/2000WO2000018044A1 Linearization of a broadband analog link using two wavelengths
03/30/2000WO2000018043A1 Method and system for detecting loss of signal in wavelength division multiplexed systems
03/30/2000WO2000018042A2 Tuneable add/drop multiplexer
03/30/2000WO2000018020A2 Gain control and shaping of edfas via dual cavity gain control
03/30/2000WO2000017967A1 Removable connecting system
03/30/2000WO2000017687A1 Bus system for transmitting optical signals
03/30/2000WO2000017613A1 Optical phase detector
03/30/2000WO1999053620A3 Optical-transmission system having a split-gain amplifier and a signal-modifying device
03/30/2000DE19834723A1 Connection system for optical network
03/30/2000CA2344543A1 Wavelength division multiplexing systems
03/30/2000CA2343724A1 Tuneable add/drop multiplexer
03/30/2000CA2341726A1 Gain control and shaping of edfas via dual cavity gain control
03/29/2000EP0989711A1 Method and apparatus for transmitting an internet protocol (IP) packet within a fiber optic network
03/29/2000EP0989694A1 Method for determining a switching moment
03/29/2000EP0989693A1 Optical amplification system including an Erbium-Ytterbium co-doped fiber
03/29/2000EP0989692A1 Apparatus for controlling the beam direction in a laser satellite communication system
03/29/2000EP0989437A1 Tunable optical waveguide grating device
03/29/2000EP0989426A1 Tapered optical fiber grating devices with variable index coatings for modifying guide properties of the fundamental mode
03/29/2000EP0988727A1 Span management system for wavelength division multiplexed network
03/29/2000EP0988723A1 Apparatus and method for transmitting and receiving a signal
03/29/2000EP0988663A1 Communications system
03/29/2000CA2282914A1 Double-passage acousto-optical device and laser
03/29/2000CA2282245A1 Method for detecting and locating a break in a synchronous digital hierarchy (sdh) optical link system
03/28/2000US6044256 Terminal device with detector
03/28/2000US6044185 Optical switch module
03/28/2000US6044102 Laser transmitting or receiving devices and method for optically transmitting information
03/28/2000US6044095 Light emitting device drive circuit
03/28/2000US6044056 Flying optical head with dynamic mirror
03/28/2000US6043931 Optical transmission system with dynamic compensation of the power transmitted
03/28/2000US6043928 Robust multi-wavelength optical fiber communication systems
03/28/2000US6043922 Optical receiver board, optical wavelength-tuning filter module used for optical receiver board, and actuator for optical wavelength-tuning filter module
03/28/2000US6043921 Fading-free optical phase rate receiver
03/28/2000US6043920 Method and apparatus for laser communication through a lossy medium
03/28/2000US6043919 Frequency characteristic correction system for optical network
03/28/2000US6043918 Laser satellite communication systems
03/28/2000US6043916 System for transmitting and receiving signals along a circular path
03/28/2000US6043915 Stabilization of a multi-channel optical signal transmitter through correlation feedback
03/28/2000US6043914 Dense WDM in the 1310 nm band
03/28/2000CA2171337C Optical pulse sequence generator
03/23/2000WO2000016503A1 Free space optical interconnect system
03/23/2000WO2000016489A2 Wireless optical communications without electronics
03/23/2000WO2000016139A2 Circularly polarized fiber in optical circuits
03/23/2000WO2000002291A8 Optical gain equalizer, and optical amplifier and wavelength-division multiplex transmitter both comprising the optical gain equalizer
03/23/2000WO1999067609B1 Optical network monitor
03/23/2000DE19936422A1 Langwelliger optischer Faserverstärker Long-wave optical fiber amplifier
03/23/2000DE19845794A1 Increasing transfer capacity of broadband optical wavelength multiplex transmitters involves demultiplexing selected wavelength regions into individually modulated channels and multiplexing
03/23/2000DE19841755A1 Polarisation transformer for optical transmission engineering
03/23/2000CA2347714A1 Wireless optical communications without electronics
03/23/2000CA2344682A1 Circularly polarized fiber in optical circuits
03/23/2000CA2308390A1 Free space optical interconnect system
03/23/2000CA2282911A1 A method to determine a switching moment and a line terminator, a control network unit and a network unit realizing such a method and a tree-like optical network including such a line terminator, such a control network unit or such a network unit
03/22/2000EP0987844A1 Optical device for processing an optical impulse
03/22/2000EP0987843A2 Remote amplifier for an optical transmission system and method of location of a faulty point
03/22/2000EP0987583A2 Polarisation-independent phase-conjugation apparatus and system comprising this apparatus
03/22/2000EP0986921A1 Interconnect apparatus including a signal bus
03/22/2000CA2282943A1 Raman fiber laser
03/22/2000CA2282941A1 Optical amplifying unit and optical transmission system
03/21/2000US6040934 Receptacle-type optical transmission/reception apparatus
03/21/2000US6040931 Optical transmitter, terminal-station apparatus having the optical transmitter, and optical communication system
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