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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11/15/2001 | WO2001086333A2 Emulator for second order polarization mode dispersion (pmd) |
11/15/2001 | WO2001086328A1 Optical component and dispersion compensating method |
11/15/2001 | US20010041032 Coupling element for connecting an electrical apparatus to an optical data bus |
11/15/2001 | US20010041031 Optical head |
11/15/2001 | US20010040922 Process for recovering digital optical signals and a feedback decision circuit |
11/15/2001 | US20010040721 Method for controlling perfomance of optical amplifiers |
11/15/2001 | US20010040720 Optical amplifiers with a simple gain/output control device |
11/15/2001 | US20010040719 Raman amplifying control unit and optical transmission system |
11/15/2001 | US20010040713 Receiving apparatus, transmitting apparatus, and communication system |
11/15/2001 | US20010040711 Optical transmission including optical restoration |
11/15/2001 | US20010040710 Optical communication system |
11/15/2001 | DE10021860A1 Method and circuit for determining optical signal to noise ratios by optical transformation |
11/15/2001 | DE10020951A1 Optic dispersion compensator, preferably before or after optic transmission path |
11/15/2001 | CA2408784A1 Chromatic dispersion compensation |
11/14/2001 | EP1154591A2 Method and apparatus for communication signal autotracking in a free space optical transmission system |
11/14/2001 | EP1154590A1 Infrared local area network |
11/14/2001 | EP1154299A1 Optical communications device |
11/14/2001 | EP1154291A1 Optical communication apparatus |
11/14/2001 | EP1153488A1 Method for monitoring the transmission quality of an optical transmission system, notably an optical wavelength-division multiplex network |
11/14/2001 | EP1153462A1 Wdm transmitter |
11/14/2001 | EP1153332A1 Non-linearity compensation in optical devices and transmission systems |
11/14/2001 | EP1153331A1 Opto-electronic techniques for reducing phase noise in a carrier signal by carrier suppression |
11/14/2001 | CN1074877C Telephone system of utilizing infrared tech. and its control method |
11/13/2001 | US6317539 Interleaved sampled and chirped optical waveguide gratings for WDM channel operations and resulting devices |
11/13/2001 | US6317535 System and method for testing optical fibers that lead between a telecommunications provider and a customer's premises |
11/13/2001 | US6317534 Optical wavelength routing device |
11/13/2001 | US6317529 Optical cross-connect apparatus |
11/13/2001 | US6317429 Communication apparatus, network system using communication apparatus and control method used in network system |
11/13/2001 | US6317414 Signal switching method |
11/13/2001 | US6317255 Method and apparatus for controlling optical signal power in response to faults in an optical fiber path |
11/13/2001 | US6317252 Dynamic channel copying device for use in fiber optics system using a nonlinear optical media |
11/13/2001 | US6317243 Optical upconverter apparatuses, methods and systems |
11/13/2001 | US6317242 Optical bus system and signal processor |
11/13/2001 | US6317241 Normal dispersion fiber optic transmission system |
11/13/2001 | US6317240 System for and a method of compensating polarization dispersion in an optical transmission system |
11/13/2001 | US6317239 Optical repeaters for single- and multi-wavelength operation with dispersion equalization |
11/13/2001 | US6317238 Chromatic dispersion management for optical wavelength division multiplexed transmission systems |
11/13/2001 | US6317236 Method and apparatus for transmitting an internet protocol (IP) packet within a fiber optic network |
11/13/2001 | US6317235 Method and system for preventing burn-out of infrared transmitter diodes |
11/13/2001 | US6317234 Communications network |
11/13/2001 | US6317233 Optical power equalizer in WDM optical communication system and variable attenuator for use therein |
11/13/2001 | US6317232 Bi-directional all-optical regenerator |
11/13/2001 | US6317231 Optical monitoring apparatus and method for network provisioning and maintenance |
11/13/2001 | US6317230 Optical cross-connect system and optical transmission system |
11/13/2001 | US6316286 Method of equalizing device heights on a chip |
11/13/2001 | US6315718 Method for hip retraction |
11/11/2001 | CA2347217A1 Matrix switch circuit |
11/08/2001 | WO2001084751A1 Optical communication apparatus and communication method |
11/08/2001 | WO2001084750A1 Optical dispersion compensating device and optical dispersion compensating method using the device |
11/08/2001 | WO2001084749A1 Optical dispersion compensating device and optical dispersion compensating method using the device |
11/08/2001 | WO2001084748A1 Receiver for an optical information transmission |
11/08/2001 | WO2001084747A2 Telescope mirror for high bandwidth free space optical data transmission |
11/08/2001 | WO2001084746A1 Method and arrangement for measuring the optical signal quality in a fiber network using optical cross-connectors |
11/08/2001 | WO2001084726A2 Spintronic optical shutter |
11/08/2001 | WO2001084725A2 Optical transmission system |
11/08/2001 | WO2001084713A1 Circuit with an optocoupler |
11/08/2001 | WO2001084679A1 Universal controller for an optical amplifier |
11/08/2001 | WO2001045451A9 Four-fiber ring optical cross-connect system using 4x4 switch matrices |
11/08/2001 | WO2001018921A8 Multifunction optical transmitter for dwdm system |
11/08/2001 | US20010038729 System comprising in-line wavelength sensitive polarimeter |
11/08/2001 | US20010038641 Data communication method, electronic apparatus, and physical-layer-control integrated circuit |
11/08/2001 | US20010038608 Traffic protection mechanism for a fiber optic network having a linear topology |
11/08/2001 | US20010038488 Optical communication system and optical amplifier |
11/08/2001 | US20010038486 Method for characterizing polarization transformers |
11/08/2001 | US20010038482 Optical transmission system having an optical surge suppression function |
11/08/2001 | US20010038481 Apparatus, system, and method for extractin an optical clock signal from an optical data signal |
11/08/2001 | US20010038479 Programmable optical add/drop multiplexer |
11/08/2001 | US20010038478 Structure of a bidirectional wavelength optical function module |
11/08/2001 | US20010038476 Synchronous digital communications system |
11/08/2001 | US20010038475 Synchronous digital communications system |
11/08/2001 | US20010038474 AC performance monitor with no clock recovery |
11/08/2001 | US20010038472 Automatic retrieval of wavelength-division multiplexed ring networks |
11/08/2001 | US20010038471 Fault communication for network distributed restoration |
11/08/2001 | US20010038081 Circuit with an optocoupler |
11/07/2001 | EP1152631A2 Supervisory control plane over wavelenght routed networks |
11/07/2001 | EP1152556A2 Self-aligning infra-red communication link |
11/07/2001 | EP1152555A1 Telescope mirror for high bandwidth free space optical data transmission |
11/07/2001 | EP1152553A2 Ground to space to ground trunking system |
11/07/2001 | EP1151570A1 Method and apparatus for upgrading an optical fiber communication system |
11/07/2001 | EP1151568A1 Network nodes with optical add/drop modules |
11/07/2001 | EP1151560A1 Multi-channel wave division multiplexer system |
11/07/2001 | EP1151559A1 Reduction of the distortion of optical impulses through polarisation mode dispersion in optical transmission systems |
11/07/2001 | EP1151558A2 Method and apparatus for optical performance monitoring in wavelength division multiplexed fiber optical systems |
11/07/2001 | EP1151557A1 Data switch |
11/07/2001 | EP1151506A1 Balanced gain flattening filters |
11/07/2001 | EP1151505A1 Gain flattening in fiber amplifiers |
11/07/2001 | EP1151336A1 Fabrication of multiplexing and demultiplexing single-mode fiber optic couplers |
11/07/2001 | CN2458823Y Analog optical fibre transmission apparatus for microwave antenna receiving signal |
11/07/2001 | CN1321020A Method and device for regenerating return-to-zero code or non-return-to-zero code in high-speed optical communication |
11/07/2001 | CN1321011A Bandwidth allocation method for passive optical network based on ATM |
11/07/2001 | CN1074619C Optical data transmission device for realizing double-spare optical data transmission |
11/06/2001 | US6314223 Diffractive vertical cavity surface emitting laser power monitor and system |
11/06/2001 | US6314217 Optical transmission device and optical transmission system employing the same |
11/06/2001 | US6314189 Method and apparatus for quantum communication |
11/06/2001 | US6314163 Hybrid universal broadband telecommunications using small radio cells interconnected by free-space optical links |
11/06/2001 | US6313941 Optical component, optical amplifier and method of controlling optical amplifier characteristic |
11/06/2001 | US6313940 System based control of optical amplifier transmission functions |
11/06/2001 | US6313934 Chromatic dispersion measurement scheme for optical systems having remote access points |
11/06/2001 | US6313933 Bidirectional wavelength division multiplex transmission apparatus |
11/06/2001 | US6313701 External optical modulation system comprising a predistorter |