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)
10/2002
10/29/2002US6473224 Configurable safety shutdown for an optical amplifier using non-volatile storage
10/29/2002US6473223 Raman amplifier
10/29/2002US6473222 Hyper-heterodyning, expanded bandpass apparatus and method
10/29/2002US6473214 Methods of and apparatus for optical signal transmission
10/29/2002US6473213 Process and system to optimize optical inter-satellite links
10/29/2002US6473212 Lightwave communication systems using semiconductor optical amplifiers
10/29/2002US6473211 Optical crossbar switching and/or routing system
10/29/2002US6473210 Method for measuring the performance of broadband dense wavelength division multiplexer (DWDM) using non-linear iterative algorithm
10/29/2002US6472981 Machine tool probe with wireless signal transmission
10/29/2002US6472655 Remote amplifier for an optical transmission system and method of evaluating a faulty point
10/29/2002US6471361 Optical apparatus which uses a virtually imaged phased array to produce chromatic dispersion
10/24/2002WO2002084915A1 Low loss wdm add drop node
10/24/2002WO2002084906A1 High-speed optical transmission device
10/24/2002WO2002084905A2 Optical sources and transmitters for optical telecommunications
10/24/2002WO2002084904A1 Device and method for reducing polarization dependent loss in an optical monitor device
10/24/2002WO2002084902A2 Device and system for the optical transmission of data between satellites
10/24/2002WO2002084901A2 Method for controlling a laser-based 3r regenerator
10/24/2002WO2002084900A2 3r regenerator with wavelength conversion
10/24/2002WO2002084888A2 Frequency comb analysis
10/24/2002WO2002084742A1 Switched laser array modulation with integral electroabsorption modulator
10/24/2002WO2002084635A1 Methods and apparatus for transmitting data over graphic displays
10/24/2002WO2002084573A1 Information card system
10/24/2002WO2002084379A1 Dynamic spectral equalizer and wavelength selective switch having extremely low polarization dependent loss and polarization mode dispersion
10/24/2002WO2002083000A1 Method and system for galvanically isolated transmission of gigabit/sec data via a slip ring arrangement
10/24/2002WO2002049267A8 System for secure optical transmission of binary code
10/24/2002WO2002048750B1 Interfacing fiber optic data with electrical power systems
10/24/2002WO2001059960A9 Optical compensation for dispersion-induced power fading in optical transmission of double-sideband signals
10/24/2002WO2000010271A3 Wavelength control in optical wdm systems
10/24/2002US20020157114 Burst-mode digital transmitter
10/24/2002US20020157060 Reducing scintillation effects for optical free-space transmission
10/24/2002US20020156042 Human suppressor tRNA oligonucleotides and methods of use for same
10/24/2002US20020154877 Waveguide fiber for dispersion and slope compensation
10/24/2002US20020154862 Temperature compensating device for optical fibre gratings
10/24/2002US20020154858 Wavelength monitoring device
10/24/2002US20020154855 Wavelength division multiplexed device
10/24/2002US20020154667 Semiconductor laser module, spatial optical transmission system and electronic appliance
10/24/2002US20020154662 Method and apparatus for precision wavelength stabilization in fiber optic communication systems using an optical tapped delay line
10/24/2002US20020154390 Pump assembly employing coupled radiation sources for multiple fibers
10/24/2002US20020154386 Optical transmission system
10/24/2002US20020154383 Optical systems
10/24/2002US20020154373 Optical receiver
10/24/2002US20020154372 Power and optical frequency monitoring system and transmission system of frequency-modulated optical signal
10/24/2002US20020154371 Burst-mode analog transmitter
10/24/2002US20020154370 Optic relay unit and terminal station in light transmission system
10/24/2002US20020154369 Bidirectional optical communication device and bidirectional optical communication apparatus
10/24/2002US20020154368 Reverse path optical combining using an optical commutator
10/24/2002US20020154367 Network and method for transmitting reverse analog signals by sub-sampling the digital reverse bandwidth
10/24/2002US20020154365 Method of controlling alignment of an optical wireless communication link
10/24/2002US20020154364 Signalling system
10/24/2002US20020154363 Universal fiber optics network
10/24/2002US20020154362 Optical link module
10/24/2002US20020154359 Method of activating optical communication system, channel increasing/decreasing method, and computer-readable recording medium
10/24/2002US20020154358 Clock synchronization supervisory method of OSC signal in wavelength multiplexing system and wavelength multiplexing system using that method
10/24/2002US20020154356 Optical transmission system with an improved signal-to-noise ratio
10/24/2002US20020154355 WDM transmitter
10/24/2002US20020154353 Method and apparatus for measuring and estimating optical signal to noise ratio in photonic networks
10/24/2002US20020154352 Data transmission rate arbitration method and optical communication apparatus
10/24/2002US20020154351 Optical network architecture with reduced equipment
10/24/2002US20020154137 Transmission of digital data from a screen
10/24/2002US20020153958 Signal amplifier and optical signal receiver using the same
10/24/2002US20020153476 Data decision circuit using clock signal which has phase optimized with respect to phase of input data signal
10/24/2002US20020153475 Optical receiver zero calibration system and method
10/24/2002DE10213599A1 Wellenleiterempfänger mit einem Nachverstärker mit einstellbarer Bandbreite Waveguide receiver with a post-amplifier with adjustable bandwidth
10/24/2002CA2482418A1 Information card system
10/24/2002CA2444625A1 Optical sources and transmitters for optical telecommunications
10/24/2002CA2443612A1 3r regenerator with wavelength conversion
10/24/2002CA2440395A1 Low loss wdm add drop node
10/23/2002EP1251712A2 Wavelength group wavelength converter and wavelength group exchange using the same
10/23/2002EP1251651A1 Method for bi-directional transmission of wavelength in a WDM transmission system and a WDM transmission system and optical nodes therefore
10/23/2002EP1251647A1 Optical communications system with adjustable dispersion compensation
10/23/2002EP1251607A2 Semiconductor laser module, spatial optical transmission system and electronic appliance
10/23/2002EP1250772A1 Network for distributing signals to a plurality of users
10/23/2002EP1250771A1 Wireless digital high speed communications
10/23/2002EP1250737A1 Raman amplifier with bi-directional pumping
10/23/2002EP1250620A2 An optical router including bistable optical switch and method thereof
10/23/2002EP1058979A4 Virtual star network
10/23/2002EP1053614A4 Dense wdm in the 1310nm band
10/23/2002EP0920647B1 Optical dispersion compensation
10/23/2002CN2518262Y Automatic monitor for optical cable
10/23/2002CN1376346A WDM transmitter and receiver
10/23/2002CN1376343A Method and system to reduce four-wave mixing (FWM) penalty in NRZ WDM systems
10/23/2002CN1376326A Integrated wavelength tunable single and two-stage all-optical wavelength converter
10/23/2002CN1376325A Optical fiber amplifier for controlling gain flatness
10/23/2002CN1376272A Distribution management opticalfiber, its manufacturing method, optical communication system employing the optical fiber and optical fiber base material
10/23/2002CN1375958A Wave-division shared transmission path and dispersion compensation optical fiber
10/23/2002CN1375957A Delay interference wavelength conversion and/or 2R regenerator
10/23/2002CN1375947A Waveguide grating array wave splitting/composing device with channel monitoring function
10/23/2002CN1375945A Device for reducing code-mode effect produced while clock extraction of injected mode-locked fiber cyclic laser
10/23/2002CN1375944A Four-port photocirculator
10/23/2002CN1093344C Apparatus for infrared channel
10/22/2002US6470132 Optical hinge apparatus
10/22/2002US6470116 Bidirectional signal transmission device using light
10/22/2002US6470112 Lightwave system
10/22/2002US6469981 Point-to-multipoint network
10/22/2002US6469826 Optical amplifier
10/22/2002US6469825 Method of amplifying optical signals using erbium-doped materials with extremely broad bandwidths
10/22/2002US6469823 Optical wavelength converter and optical wavelength division multiplexing communication system using the same
10/22/2002US6469816 Phase-modulated fiber optic telecommunications system
10/22/2002US6469815 Inter-satellite optical link acquisition sensor
10/22/2002US6469814 Apparatus and method for detecting channel information from WDM optical signal by using wavelength selective photo detector