| Patents for H04J 14 - Optical multiplex systems (27,009) |
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| 01/25/2001 | CA2378130A1 A multi-functional optical switch (optical wavelength division multiplexer/demultiplexer, add-drop multiplexer and inter-connect device) and its method of manufacture |
| 01/24/2001 | CN1281302A Protective reversing and detecting method of synchronously triggered multiplexing band under multiple securities mechanism |
| 01/23/2001 | US6178022 Optical transmitter and optical receiver for optical time division multiplexing transmission |
| 01/23/2001 | US6178021 System for compensating polarization dispersion of channels in a wavelength-division multiplex signal |
| 01/18/2001 | WO2001005084A1 Terahertz optical asymmetric demultiplexing system and method |
| 01/18/2001 | WO2001005083A1 Optical transmission network having a protection configuration |
| 01/18/2001 | WO2001005082A1 Method and devices for multiplexing and de-multiplexing multiple wavelengths |
| 01/18/2001 | WO2001004674A1 Dynamically configurable spectral filter |
| 01/18/2001 | WO2001004673A1 Serial data to parallel data converter |
| 01/18/2001 | CA2379155A1 Method and devices for multiplexing and de-multiplexing multiple wavelengths |
| 01/18/2001 | CA2379046A1 Optical transmission network having a protection configuration |
| 01/18/2001 | CA2376036A1 Dynamically configurable spectral filter |
| 01/17/2001 | EP1069720A2 Communications systems |
| 01/17/2001 | EP1069719A2 Optical system |
| 01/17/2001 | EP1069717A2 Method for transmitting a concatenated signal |
| 01/17/2001 | EP1068685A2 Optical fibre amplifier having a controlled gain |
| 01/17/2001 | EP0873603A4 Optically cross-linked communication system (occs) |
| 01/17/2001 | CN2415547Y Reflection comb wavelength division device |
| 01/16/2001 | US6175436 Automatic feedback gain control for multiple channels in a doped optical fiber amplifier |
| 01/16/2001 | US6175433 Optical bit rate converter |
| 01/16/2001 | US6175432 Multi-wavelength cross-connect optical network |
| 01/11/2001 | WO2001003351A1 A tuneable optical filter |
| 01/11/2001 | WO2001003350A1 Wdm optical transmitter |
| 01/11/2001 | WO2001003349A1 Multiple-wavelength optical transmitter and method of controlling wavelength of optical transmission |
| 01/11/2001 | WO2001003339A1 Pre-shaping laser modulation signals to increase modulation index |
| 01/11/2001 | WO2001003338A1 Laser wavelength control in an optical transmission system |
| 01/11/2001 | WO2001003337A1 Laser wavelength control in an optical communication system |
| 01/11/2001 | WO2001002976A1 Data processing apparatus |
| 01/11/2001 | WO2001002903A1 Wavelength selective device and switch and method thereby |
| 01/11/2001 | DE10030476A1 Arrayed waveguide grating (AWG) WDM with alignment waveguides for distributing received optical signals, has functional waveguides to which signals are multiplexed or de-multiplexed, but not to alignment waveguides |
| 01/11/2001 | CA2378133A1 A tuneable optical filter |
| 01/11/2001 | CA2377925A1 Data processing apparatus |
| 01/10/2001 | EP1067727A2 Optical branching unit and optical transmission line |
| 01/10/2001 | EP1067726A2 Voltage control of optical receiver bandwidth |
| 01/10/2001 | EP1067725A2 Filter with variable transmission characteristic |
| 01/10/2001 | EP1067717A2 Broadband optical amplifier and system having the optical amplifier |
| 01/10/2001 | EP1067715A1 Apparatus for polarisation dispersion compensation in an optical transmission system |
| 01/10/2001 | EP1067414A1 Fibre optic Bragg grating filter with a constant group delay time for the band region in use |
| 01/10/2001 | EP1067412A1 Dispersion compensating optical fiber |
| 01/10/2001 | EP1066694A1 Mehods and apparatus for reducing four-wave mixing |
| 01/10/2001 | CN1279848A Crosstalk reduction in a bidirectional optical link |
| 01/10/2001 | CN1279549A Method for compensation for Raman effect by pumping in wave division multiplex communication system |
| 01/10/2001 | CN1279548A Optical spliting device for circular network having wave division multiplex |
| 01/10/2001 | CN1279542A Communication system |
| 01/10/2001 | CN1060572C Pyrometric cone high density wave divided multiplexing device |
| 01/09/2001 | US6173093 Optical add/drop wavelength division multiplex systems |
| 01/09/2001 | US6172782 Output port switching device in N-WDM system |
| 01/09/2001 | US6172781 Wave division multiplexed optical network |
| 01/08/2001 | CA2309777A1 Compensation device for polarization dispersion in an optical transmission system |
| 01/04/2001 | WO2001001585A2 Optical signal interleaver |
| 01/04/2001 | WO2001001177A1 Optical fibre with chromatic dispersion compensation |
| 01/04/2001 | WO2001001173A1 Wavelength selective switch |
| 01/04/2001 | CA2378029A1 Wavelength selective switch |
| 01/04/2001 | CA2340777A1 Optical signal interleaver |
| 01/03/2001 | EP1065822A1 Autoprotected optical communication ring network |
| 01/03/2001 | EP1065821A2 Optical system |
| 01/03/2001 | EP1065820A2 Optical add/drop arrangement for ring networks employing wavelength division multiplexing |
| 01/03/2001 | EP1065818A1 Transmitting method and transmitting device |
| 01/03/2001 | EP1065813A2 Optical system |
| 01/03/2001 | EP1065812A1 Optical repeater and output level control method |
| 01/03/2001 | EP1065811A2 Optical amplifiers |
| 01/03/2001 | EP1064750A1 System and method for demultiplexing in optical communication systems |
| 01/03/2001 | EP1064748A1 Optical layer survivability and security system |
| 01/03/2001 | EP1064739A2 Protection of wdm-channels |
| 01/02/2001 | US6169828 Fiber optic dense wavelength division multiplexer with a phase differential method of wavelength separation utilizing a polarization beam splitter and a nonlinear interferometer |
| 01/02/2001 | US6169626 Optical signal interleaver |
| 01/02/2001 | US6169616 Optical and programmable fiber optic wavelength add/drop system |
| 01/02/2001 | US6169615 Wavelength division multiplex optical transmission apparatus |
| 12/30/2000 | CA2312136A1 Multiple-wavelength amplified telecommunication system with automatic gain control |
| 12/30/2000 | CA2312015A1 Optical add/drop arrangement for ring networks employing wavelength division multiplexing |
| 12/27/2000 | EP1063804A2 Micro-optical delay element for use in a polarization multiplexed system |
| 12/27/2000 | EP1063803A1 Wideband optical packet ring network |
| 12/27/2000 | EP1063802A1 Optical ring network having enhanced security and reduced loss |
| 12/27/2000 | EP1063744A1 Multiple band Raman amplifier |
| 12/27/2000 | EP1063741A2 Gain control unit and optical amplifier having temperature compensating function |
| 12/27/2000 | EP1062832A1 Method for configuring and reconfiguring networks |
| 12/27/2000 | CN1278131A Wavelength-division multiplex arrangement equied with array wave-guide grating for alignment of waveguide, and alignment arrangement therefor |
| 12/26/2000 | US6167171 Cascading optical multiplexing device |
| 12/26/2000 | US6167024 Multiple channel control using orthogonally modulated coded drive signals |
| 12/26/2000 | US6166838 Optical add/drop wavelength switch |
| 12/23/2000 | CA2308683A1 Micro-optic delay element for use in a polarization multiplexed system |
| 12/21/2000 | WO2000077962A1 Communication systems and apparatus with synchronous orthogonal coding |
| 12/21/2000 | WO2000077956A1 Method and apparatus of utilizing rf/microwave mixing techniques to select a given band of an optical transmission |
| 12/21/2000 | DE19927451A1 Verfahren zur Übertragung von Daten über ein optisches WDM-Übertragungssystem, sowie WDM-Übertragungssystem Method for transmitting data over an optical WDM transmission system, WDM transmission system and |
| 12/21/2000 | CA2375773A1 Method and apparatus of utilizing rf/microwave mixing techniques to select a given band of an optical transmission |
| 12/20/2000 | EP1061764A2 Method of controlling access in an information network |
| 12/20/2000 | EP1061685A2 Method for transmission of data by an optical WDM transmission system, and WDM transmission system |
| 12/20/2000 | EP1061684A1 Broadband amplified WDM ring |
| 12/20/2000 | EP1061683A1 Optical add-drop module with low loss and high isolation |
| 12/20/2000 | EP1061674A2 Wavelength division multiplexed optical communication system having tunable multi-channel dispersion compensating filters |
| 12/20/2000 | EP1061389A2 1,5 x 2 optical switch |
| 12/20/2000 | EP1060633A1 Optical add/drop wavelength switch |
| 12/20/2000 | EP1060603A1 System and method for spectrally efficient transmission of digital data over optical fiber |
| 12/20/2000 | EP1060589A2 Method and apparatus for improving spectral efficiency in wavelength division multiplexed transmission systems |
| 12/20/2000 | EP1060427A1 Composite diffraction gratings for signal processing and optical control applications |
| 12/20/2000 | EP1060421A1 N-port reconfigurable dwdm multiplexer and demultiplexer |
| 12/20/2000 | EP0856216B1 Level control process for optical fibre transmission paths |
| 12/19/2000 | US6163636 Optical communication system using multiple-order Raman amplifiers |
| 12/19/2000 | US6163527 Method and apparatus for an optical bi-directional line switched ring data communications system |
| 12/19/2000 | US6163395 Linear multi-output optical transmitter system |