| 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) |
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| 03/03/2005 | US20050047778 Modular controller that interfaces with modular optical device |
| 03/03/2005 | US20050047727 Low noise multi-wavelength light source and wavelength division multiplexing system using same |
| 03/03/2005 | US20050047714 Branching unit with full or partial broadcast of wavelengths |
| 03/03/2005 | US20050047601 Quantum communication system |
| 03/03/2005 | US20050047452 Optical pulse demultiplexer and method thereof |
| 03/03/2005 | US20050047427 Communication network using code division multiplexing technology |
| 03/03/2005 | US20050046929 Optical transmission systems including signal varying devices and methods |
| 03/03/2005 | US20050046927 Controller which controls a variable optical attenuator to control the power level of a wavelength-multiplexed optical signal when the number of channels are varied |
| 03/03/2005 | US20050046868 System for monitoring optical output/wavelength |
| 03/03/2005 | US20050046843 Monitoring alignment between pulse carvers and phase modulators in optical systems |
| 03/03/2005 | US20050045810 Method and system for controlling an amplifier in an optical network |
| 03/03/2005 | DE10336925A1 Optischer Übertrager mit Koppelschlitten The optical transmitter with coupling slide |
| 03/03/2005 | DE102004014159A1 Projektionssystem Projection system |
| 03/02/2005 | EP1511331A1 Controller for switching wavelength-division multiplex optical signal |
| 03/02/2005 | EP1511208A2 A branching unit with full or partial broadcast of wavelengths |
| 03/02/2005 | EP1511207A2 Method and apparatus to reduce second order distortion in optical communications |
| 03/02/2005 | EP1511203A1 High-speed wireless personal area network system for extending service area |
| 03/02/2005 | EP1511202A1 Optical subscriber network system |
| 03/02/2005 | EP1511201A2 Optical fiber transmission lines with dispersion management, optical transmission cable, and method of making same |
| 03/02/2005 | EP1511200A1 Device for regenerating an optical signal and corresponding method |
| 03/02/2005 | EP1511199A2 Method and system for controlling an amplifier in an optical network |
| 03/02/2005 | EP1511198A2 Optical receiver cicuit |
| 03/02/2005 | EP1511196A2 Scheme for reducing low frequency components in an optical transmission network |
| 03/02/2005 | EP1511195A1 Duobinary optical transmission device using at least one semiconductor optical amplifier |
| 03/02/2005 | EP1511194A2 Apparatus and method for tracking optical wavelengths in WDM passive optical network using loop-back light source |
| 03/02/2005 | EP1510842A1 Optical interconnect system and method of communications over an optical backplane |
| 03/02/2005 | EP1509976A1 Cascaded raman pump for raman amplification in optical systems |
| 03/02/2005 | EP1430622B1 Improvements in or relating to signal transmission in an optical system |
| 03/02/2005 | CN1589544A Quantum transmission device, quantum receiver, quantum cipher communication device and method |
| 03/02/2005 | CN1589227A Elevator |
| 03/02/2005 | CN1589062A Extendable photoectric mixing optical fiber network system back plate |
| 03/02/2005 | CN1588828A Light relay station device for light transmission; system and its automatic fain regulating method |
| 03/02/2005 | CN1588827A Self adaptive channel reservation and searching method in light burst exchange |
| 03/02/2005 | CN1588826A Method for realizing light burst exchange connection control |
| 03/02/2005 | CN1588825A Light burst exchange network edge node structure and realizing method |
| 03/02/2005 | CN1588711A Tunable single longitudinal mode optical-fiber laser for clearing beat frequency noise |
| 03/02/2005 | CN1588223A Double pump wide band optical fiber parameter amplifier |
| 03/02/2005 | CN1588151A Multiple wave length simultaneously exciting erbium blended optical fiber laser working and room temperature |
| 03/02/2005 | CN1588150A Method for producing multiple channel filter based on optical fiber grating |
| 03/02/2005 | CN1588149A Tunable light wave guide dispersion compensator controlled by two-section erverse electrode oriented coupler |
| 03/02/2005 | CN1588147A Cascade 1XN light power distributor |
| 03/02/2005 | CN1588146A Micro motor variable light attenuator |
| 03/02/2005 | CN1588145A Assembling type iso-film double optical fiber head and its producing method |
| 03/02/2005 | CN1588144A Full optical fiber interference system |
| 03/02/2005 | CN1588141A Photon crystal optical fiber |
| 03/02/2005 | CN1588140A Single mode photon crystal optical fiber |
| 03/02/2005 | CN1191694C Apparatus and method for determining quality of one digital signal |
| 03/02/2005 | CN1191693C Automatic in-off method of Raman amplifier and its safe control module |
| 03/01/2005 | US6862413 Compensation for polarization mode dispersion in single mode fiber |
| 03/01/2005 | US6862397 Method for audibly measuring optical efficiency in an installed fiber optic link |
| 03/01/2005 | US6862395 Attenuation devices |
| 03/01/2005 | US6862391 Optical transmission line, and optical fiber and dispersion compensating module employed in the same |
| 03/01/2005 | US6862380 Transparent optical switch |
| 03/01/2005 | US6862377 System and method for PMD measurement from coherent spectral analysis |
| 03/01/2005 | US6862306 Driving circuit for light emitting element, and optical communication device using same |
| 03/01/2005 | US6862303 Multiwavelength locking method and apparatus using acousto-optic tunable filter |
| 03/01/2005 | US6862299 Method and system for galvanically isolated transmission of gigabit/sec data via a slip ring arrangement |
| 03/01/2005 | US6862134 Distributed optical amplifier, amplifying method, and optical communication system |
| 03/01/2005 | US6862133 Raman amplifier and wavelength division multiplexing optical communication system, and method of controlling raman amplification |
| 03/01/2005 | US6862126 Transmission wavelength characteristics variable optical element, and wavelength characteristics variable apparatus, optical amplifier, optical transmission system, and control method of transmission wavelength characteristics, using same |
| 03/01/2005 | US6861673 Chip CMOS optical element |
| 03/01/2005 | CA2344299C Control channel processor and switching mechanism |
| 03/01/2005 | CA2328748C Srs pilot tone interaction and higher order effects in optical performance monitoring |
| 02/26/2005 | CA2478357A1 Method and apparatus to reduce second order distortion in optical communications |
| 02/24/2005 | WO2005018118A1 Distortion generator circuit, pre-distortion circuit, optical signal transmitter using the same, and optical signal transmission system |
| 02/24/2005 | WO2005018117A1 Unrepeatered optical communication system with suppressed sbs |
| 02/24/2005 | WO2005017609A2 Distributed amplifier optical modulators |
| 02/24/2005 | WO2005017583A2 Buried fiber optic system including a sub-distribution system and related methods |
| 02/24/2005 | WO2004070974A9 Multipoint monitoring method, multipoint monitoring system and monitoring station unit |
| 02/24/2005 | WO2004046763A3 Method and apparatus for providing controllable second-order polarization mode dispersion |
| 02/24/2005 | WO2003102634A3 Optical bypass method and architecture |
| 02/24/2005 | US20050044116 All-frequency PMD compensator and emulator |
| 02/24/2005 | US20050041986 Optical transmission method and optical receiver |
| 02/24/2005 | US20050041985 Transimpedance amplifier |
| 02/24/2005 | US20050041984 Electro-absorption modulation of optical signals |
| 02/24/2005 | US20050041983 Method of forming a coded optical signal with a return to zero or non return to zero format |
| 02/24/2005 | US20050041982 Optical transmission apparatuses, methods, and systems |
| 02/24/2005 | US20050041981 Methods and apparatus for producing transmission failure protected, bridged, and dispersion resistant signals |
| 02/24/2005 | US20050041980 Wireless optical system |
| 02/24/2005 | US20050041979 Method and apparatus for data recovery in an optical transmission system |
| 02/24/2005 | US20050041977 Method and system for reducing Raman gain tilt error |
| 02/24/2005 | US20050041975 Wavelength division multiplexing transmission system |
| 02/24/2005 | US20050041974 Modular multiplexing/demultiplexing units in optical transmission systems |
| 02/24/2005 | US20050041972 Passive optical network using error correction code |
| 02/24/2005 | US20050041971 Multi-wavelength optical transmitter and bi-directional wavelength division multiplexing system using the same |
| 02/24/2005 | US20050041970 Optical packet buffering device and buffering method thereof |
| 02/24/2005 | US20050041969 Dynamic control of power loss in an optical fiber by contrapropagation of a supervisory channel |
| 02/24/2005 | US20050041968 Optical transmission system |
| 02/24/2005 | US20050041921 Variable wavelength dispersion compensator |
| 02/24/2005 | US20050041917 Apparatus and method for fiber optic link with built-in test |
| 02/24/2005 | US20050041902 Method, apparatus and system for minimally intrusive fiber identification |
| 02/24/2005 | US20050041706 Laser driver circuit |
| 02/24/2005 | US20050041699 Wavelength division multiplex optical wavelength converter |
| 02/24/2005 | US20050041682 Method and apparatus for reducing data burst overhead in an ethernet passive optical network |
| 02/24/2005 | US20050041253 Transmission system |
| 02/24/2005 | US20050040892 Transimpedance amplifier with receive signal strength indicator |
| 02/24/2005 | US20050040773 Method and apparatus for a variable intensity pulsed L.E.D. light |
| 02/24/2005 | DE10334428A1 Method for ascertaining the quality of an optical signal e.g. for commercial data transmission systems such as WDM, DWDM, involves approximating at least one freely formed data pattern where deviations from second profile are detected |
| 02/24/2005 | DE10333127A1 Retrieval of the clock signal from an optical data signal, e.g. in an optical time domain multiplex system, whereby the transmitted optical data signal is filtered in the frequency range around that of the clock frequency |
| 02/24/2005 | DE102004035683A1 Leichte tragbare phasengesteuerte Antenne Lightweight portable phased array antenna |