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)
10/2003
10/09/2003US20030189955 Survivable ring transmission system with multiple protection classes
10/09/2003US20030189751 Gain and signal level adjustments of cascaded optical amplifiers
10/09/2003US20030189750 All band amplifier
10/09/2003US20030189747 Low voltage, optical phase modulator
10/09/2003US20030189745 Optical single sideband transmitter
10/09/2003US20030189701 Error function analysis of optical components
10/09/2003US20030189699 System for measuring and/or dynamically controlling power loss in an optical transmission line, and an associated method
10/09/2003CA2447927A1 Depolarized optical signal transmitter
10/08/2003EP1351449A1 Method and system for supporting point-to-point emulation in an Ethernet passive optical network by means of an extended Ethernet frame
10/08/2003EP1351429A1 Clock recovery circuit
10/08/2003EP1351423A2 WDM transmission system
10/08/2003EP1351417A1 Dispersion-compensation fiber using higher order mode
10/08/2003EP1351416A2 System and method for amplifying signals in an optical network
10/08/2003EP1350381A2 Interfacing fiber optic data with electrical power systems
10/08/2003EP1350350A2 Athermalization and pressure desensitization of diffraction grating based spectrometer devices
10/08/2003EP1350349A1 Channel balancing of a wavelength division multiplexed optical signal
10/08/2003EP1350096A2 Electro-optic system controller and method of operation
10/08/2003CN2579094Y Flat-top pass band wave length division multiplexing components
10/08/2003CN2579093Y Integrated rarefaction wave length division multiplexer
10/08/2003CN1447554A Wave-division multiplexing transmission system for measuring dispersive charactoristic, light emitter and light receiver
10/08/2003CN1447553A Light transmission system and method
10/08/2003CN1447552A Wave-division multiplexing passive optical fiber network system
10/08/2003CN1447539A Two-Way light transmission system and station and sub-station used thereof
10/08/2003CN1447538A Communicator and communicating system
10/08/2003CN1447537A Non-return to zero code fiber optic transmission system and dispersion compensation process
10/08/2003CN1447137A Optic fiber connection method utilized in long-distance transmission
10/08/2003CN1124000C Signal light outputting appts. and optical transmission system having signal light outputting appts.
10/08/2003CA2424087A1 Optical demultiplexer and optical transmission system
10/07/2003US6631246 Wavelength division multiplexed optical communication system having tunable multi-channel dispersion compensating filters
10/07/2003US6631245 Device for extracting and inserting optical carriers in optical communications networks
10/07/2003US6631222 Reconfigurable optical switch
10/07/2003US6631221 Compensation of polarization mode dispersion
10/07/2003US6631145 Wavelength-tunable mode-locked laser, wavelength converter and transmission system
10/07/2003US6631028 Broadband amplifier and communication system
10/07/2003US6631027 Universal controller for an optical amplifier that operates over a wide dynamic range of optical signals and optical amplifiers utilizing such controllers
10/07/2003US6631026 Optical amplifier, excitation light source control method for use in optical amplifier, and optical amplifier control method
10/07/2003US6631025 Low-noise distributed Raman amplifier using bi-directional pumping using multiple Raman orders
10/07/2003US6631019 Reconfigurable multichannel transmitter for dense wavelength division multiplexing (DWDM) optical communication
10/07/2003US6631018 WDM optical network with passive pass-through at each node
10/07/2003US6630992 Method and device for executing control and monitoring measurements in optical transmission paths
10/07/2003US6629638 Electro-optic system controller and method of operation
10/07/2003CA2279343C Distributed ethernet hub
10/02/2003WO2003081944A1 Optical cross-connector containing a multi-stage clos network in which a single-stage matrix comprises one stage of the clos network
10/02/2003WO2003081826A2 Supervisory channel in an optical network system
10/02/2003WO2003081815A1 Optical transmission system using an optical phase conjugation device
10/02/2003WO2003081814A1 Optical transmission system using an optical phase conjugation device
10/02/2003WO2003081813A2 Optical fiber receiver having an increased bandwidth
10/02/2003WO2003081812A1 Stabilizing optical sources in a communication system___________
10/02/2003WO2003081811A1 Method of up-conversion of all-optical signal through cross-gain modulation in semiconductor optical amplifier and apparatus thereof
10/02/2003WO2003081789A2 Tunable pulse width generation of return-to-zero format for system optimization
10/02/2003WO2003081302A2 Optically powered and controlled optical switch
10/02/2003WO2003058827A3 Laser optics integrated control system and method of operation
10/02/2003WO2003049333A8 Modulation control
10/02/2003WO2003028261A3 Topology discovery in optical wdm networks
10/02/2003WO2003007035A3 Dispersion and dispersion slope compensating optical fiber
10/02/2003WO2002061983A8 Dual-mode fiber optic telecommunications system and method
10/02/2003WO2002021736A9 Active equipment protection methods and apparatus
10/02/2003WO2001097412A3 Optical communications system utilizing frequency division multiplexing
10/02/2003US20030185578 Receiving device for disturbed optical signals with generation of a feedback signal by correlation, and method of generating such a feedback signal
10/02/2003US20030185577 Measuring optical waveforms
10/02/2003US20030185575 Drive control apparatus and drive control method for optical modulator
10/02/2003US20030185574 Reduces signal deterioration caused by dispersion even in a transmission system having a high-speed transmission rate, and is suited to a long-distance transmission.
10/02/2003US20030185573 Optical transmission systems
10/02/2003US20030185571 Forming a loop on an optical transmission line to each of the remote units for delay compensation test between the main unit and each of the remotes
10/02/2003US20030185570 Systems and methods for gain pre-compensation in optical communication systems
10/02/2003US20030185569 Photoelectric transfer element array directly and optically coupled to the optical demultiplexing component.
10/02/2003US20030185568 Chromatic dispersion compensating apparatus
10/02/2003US20030185567 Signal transmission method in WDM transmission system, and WDM terminal, optical add-drop multiplexer node, and network element used in the same system
10/02/2003US20030185566 Optical cross-connect device
10/02/2003US20030185565 Providing transparent (optical) switching of subsets of wavelengths in addition to opaque (electrical) switching of individual light paths.
10/02/2003US20030185564 Data transmission system, transmission method of optical network monitor control signal, and node
10/02/2003US20030185563 Optical signal controller on an optical link between two optical nodes; compensating channels are combined with the optical signal to compensate for power variations in the signal channels passing between the nodes.
10/02/2003US20030185562 Split redundant trunk architecture using passive splitters and path switching
10/02/2003US20030185504 Device using a virtually-imaged phased array (VIPA) with an improved transmission wave characteristic of output light
10/02/2003US20030185503 Optical transmission systems and optical amplifiers for use therein
10/02/2003US20030185502 Optical receiving apparatus, optical transmitting apparatus, optical transmitting/receiving apparatus and optical transfer system
10/02/2003US20030185500 Optical transmission systems
10/02/2003US20030185491 Optical switch with a geometry based on perpendicularly-oriented planar lightwave circuit switches
10/02/2003US20030185482 Polarized wave scrambler and optical signal transmission apparatus
10/02/2003US20030185258 Spectral conditioning system and method
10/02/2003US20030185229 Reservation-based media access controller and reservation-based optical network
10/02/2003US20030184851 Control system and method for an optical amplifier
10/02/2003US20030184850 Optical amplifier having various control circuitry
10/02/2003US20030184846 Modular optical amplifier assembly and a method of assembly
10/02/2003US20030184840 Phase modulator and phase modulating method
10/02/2003US20030184838 Control apparatus and control method for an optical modulator
10/02/2003US20030184735 System and method for measuring and compensating for the polarization mode dispersion of an optical signal
10/02/2003CA2478869A1 Optical cross-connector containing a multi-stage clos network in which a single-stage matrix comprises one stage of the clos network
10/01/2003EP1349311A1 Optical packet time-compressor with delay loop for high-speed transmissions
10/01/2003EP1349309A2 Method and system for control signaling in an open ring optical network
10/01/2003EP1349308A2 Flexible open ring optical network and method
10/01/2003EP1349303A2 Dispersion discrimination for wideband optical signals
10/01/2003EP1349302A2 Optical transmission systems
10/01/2003EP1349301A2 Chromatic dispersion compensating apparatus
10/01/2003EP1349300A1 Receiving device for distorted optical signals based on a feedback signal generated by correlation
10/01/2003EP1349299A1 Control system and method for an optical amplifier
10/01/2003EP1348988A2 Optical switch with a geometry based on perpendicularly-oriented planar lightwave circuits
10/01/2003EP1348313A2 Digital cross-connect
10/01/2003EP1348273A2 Network transceiver for extending the bandwidth of optical fiber-based network infrastructure
10/01/2003EP1348266A1 Control scheme for long wavelength channels in wideband wdm optical fiber transmission system
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