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
04/09/2003CN1409828A optical apparatus which uses virtually imaged phased array to produce chromatic dispersion
04/09/2003CN1409501A Pulse light source for long-distance light communication system
04/09/2003CN1409500A Method and device for transferring multiple kinds of service information based on synchronous transmission system
04/09/2003CN1409499A Data transmission of infrared laser by direct modulation
04/09/2003CN1409166A Optical transmission net with Raman amplifier
04/09/2003CN1409165A Circuit structure and method for safety cut-off optical amplifier
04/09/2003CN1409143A Device for multipath resolving optical R2 signal
04/09/2003CA2406898A1 Distortion measurement in optical communication systems
04/08/2003USRE38069 Electrical switched load relocation apparatus
04/08/2003US6546160 Transceiver for wavelength multiplexing processes
04/08/2003US6546014 Method and system for dynamic bandwidth allocation in an optical access network
04/08/2003US6545800 Depolarizers for optical channel monitors
04/08/2003US6545799 Method and apparatus for optical system link control
04/08/2003US6545788 Multiple path digital wavelength stabilization
04/08/2003US6545787 Method of communication between earth stations using a constellation of satellites
04/08/2003US6545785 Optical communication system with phase modulation
04/08/2003US6545784 Optical cross connect unit, optical add-drop multiplexer, light source unit, and adding unit
04/08/2003US6545779 System for dealing with faults in an optical link
04/08/2003US6545259 Optical wavelength monitor for a passive optical component
04/08/2003CA2212639C Substrate system for optoelectronic/microwave circuits
04/08/2003CA2075387C Low distortion laser system for am fiber optic communication
04/03/2003WO2003028403A2 All-optical switching sites for an agile optical network
04/03/2003WO2003028326A1 Infrared communications systems comprising a coding function to reduce the maximum number of consecutive spaces in the signal sent
04/03/2003WO2003028307A1 Optical fiber network system transmission method, optical fiber network system thereof, and central unit thereof
04/03/2003WO2003028267A1 Mitigating nonlinear transmission impairments in fiber-optic communications systems
04/03/2003WO2003028264A2 Light source for generating an output signal having spaced apart frequencies
04/03/2003WO2003028263A1 System for optical demultiplexing of wavelength bands
04/03/2003WO2003028261A2 Topology discovery in optical wdm networks
04/03/2003WO2003028260A2 Method and apparatus for transmission of upstream data in an optical network
04/03/2003WO2003028257A1 Optical to microwave converter using direct modulation
04/03/2003WO2003028256A2 Multi-channel wavelength locker using gas tuning
04/03/2003WO2003028254A2 Method and apparatus for higher-order compensation of transmission distortion in optical transmission media
04/03/2003WO2003028252A1 System and method for orthogonal frequency division multiplexed optical communication
04/03/2003WO2003027737A1 L-band dispersion compensating fiber and transmission system including same
04/03/2003WO2003027735A1 Optical arrangement and transceiver module for bi-directional optical wdm systems and optical data transmissions
04/03/2003WO2003027726A2 Long wavelength optical amplifier
04/03/2003WO2002048771A3 Optical-fiber cable and method for transmitting optical signals, particularly according to wavelength multiplexing technology
04/03/2003US20030063881 L-band dispersion compensating fiber and transmission system including same
04/03/2003US20030063879 Optical transmission line and optical communication system
04/03/2003US20030063877 Optical fiber transmission line
04/03/2003US20030063872 Flexible electrical interconnect for optical fibre transceivers
04/03/2003US20030063854 Method for extracting spectral parameters of channels from non-channelised light
04/03/2003US20030063850 Method and device for optical amplification
04/03/2003US20030063847 Deep fiber network architecture
04/03/2003US20030063843 Method and apparatus for transmission of upstream data in an optical network
04/03/2003US20030063840 Reconfigurable directional optical system
04/03/2003US20030063834 Optical phase shifting, splitting and combining device
04/03/2003US20030063696 Method and apparatus for time aligning data modulators using frequency domain analysis of detected output
04/03/2003US20030063374 Raman amplification method, raman amplifier, and optical transmission system
04/03/2003US20030063373 Raman amplifier
04/03/2003US20030063372 Long wavelength optical amplifier
04/03/2003US20030063354 Optical receiver including a dual gain path amplifier system
04/03/2003US20030063353 Method for the modulation of signal wavelengths and method for the detection and correction of bit errors in optical transmission systems
04/03/2003US20030063352 Digital optical transmitter
04/03/2003US20030063351 Microtransponder sensing system
04/03/2003US20030063350 Cascaded line-of-sight free-space communications system
04/03/2003US20030063349 Dispersion compensation in agile networks
04/03/2003US20030063347 Optical exchanger
04/03/2003US20030063346 Reconfigurable, multi-user optical communications network, with low latency time
04/03/2003US20030063345 Wayside user communications over optical supervisory channel
04/03/2003US20030063344 Device for demultiplexing optical RZ signals
04/03/2003US20030063343 Optical power management in an optical network
04/03/2003CA2461889A1 Method and apparatus for higher-order compensation of transmission distortion in optical transmission media
04/03/2003CA2461475A1 All-optical switching sites for an agile optical network
04/02/2003EP1298956A1 Reconfigurable directional optical system
04/02/2003EP1298874A1 Method and apparatus for time aligning a modulated RZ pulse signal and a modulating NRZ data signal by spectral analysis of the detected modulation output voltage over a swept clock delay of the RZ pulse signal
04/02/2003EP1298831A1 A CA-RZ optical clock signal generator, and a resynchronized optical multiplexer containing such a generator
04/02/2003EP1298827A2 Optical signal processing system
04/02/2003EP1298826A2 Method of transmission of at least a first and a second polarisation multiplexed data signals in an optical communication system
04/02/2003EP1298821A2 Optical transmission system using dispersion compensating fibers
04/02/2003EP1298820A2 Remote modules in optical communications links
04/02/2003EP1298819A2 Apparatus and method for optical modulation
04/02/2003EP1298818A2 Method for transmission of at least a first and second polarisation multiplexed signal in an optical transmission system
04/02/2003EP1298766A1 Raman amplification with multiple pump sources
04/02/2003EP1298764A2 Method and device for optical amplification
04/02/2003EP1298466A1 Compensation of optical dispersion
04/02/2003EP1297717A2 A reconfigurable optical switch
04/02/2003EP1297649A2 Optical performance monitor with optimized focus spot size
04/02/2003EP1297645A2 Method and apparatus for the optimization of dispersion map using slope-compensating optical fibers
04/02/2003EP1244894A4 Dense wavelength division multiplexer utilizing an asymmetric pass band interferometer
04/02/2003EP1228393B1 Device for controlling an optical signal modulation frequency, and in particular for controlling microwave or millimetric modulation frequency
04/02/2003EP0848873B1 Optical communication system
04/02/2003CN2543286Y Wave division multiplexer/demultiplexer based on array waveguide interferometer
04/02/2003CN2543096Y Electric controllable photosignal attenuator
04/02/2003CN2543082Y Rotary optical element type photoswitch
04/02/2003CN2543078Y Photoswitch device
04/02/2003CN2543077Y 1XN Photoswitch
04/02/2003CN2543076Y 1×n光学开关 1 × n optical switch
04/02/2003CN1408151A Optical fiber network
04/02/2003CN1408071A Reducing insertion losses of written in grating with mode coupling in cladding
04/02/2003CN1407752A Multi-raster optical waveguide monitor
04/02/2003CN1407751A WDM switch with OADM and control method thereof
04/02/2003CN1407749A 光码变换器 Optical code converter
04/02/2003CN1407742A Device for compensating polarizing diffusion in optical transmitting system
04/02/2003CN1407741A Improved optical modifier for maximizing nonreturn to zero modification
04/02/2003CN1407739A Classic signal synchronous delayed composite quantum pin issuing system and dual speed protocol
04/02/2003CN1407738A Optical division inserting multiplex device
04/02/2003CN1407358A Dispersion continuous-change fibre
04/02/2003CN1104789C Method and device for integrating ATM services with STM services
04/02/2003CN1104672C Signal treating system
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