| 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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| 06/25/1997 | CN1152984A Optical telecommunications network  | 
| 06/25/1997 | CN1152983A Processing for optical data packet  | 
| 06/25/1997 | CN1152980A Generation of radio frequency modulated optical radiation  | 
| 06/24/1997 | US5642448 Integrable fiberoptic coupler and resulting devices and systems  | 
| 06/24/1997 | US5642447 Fiber optic network transmission system with integrated optical isolator couplers  | 
| 06/24/1997 | US5642405 Cellular communications system with centralized base stations and distributed antenna units  | 
| 06/24/1997 | US5642219 Optical repeater  | 
| 06/24/1997 | US5642217 Apparatus for repowering and monitoring serial links  | 
| 06/24/1997 | US5642215 Optical transmission system  | 
| 06/22/1997 | CA2192635A1 Modulated and depolarized optical signal transmission system  | 
| 06/19/1997 | WO1997022190A1 Meshed optical network  | 
| 06/19/1997 | WO1997022023A1 Formation of a refractive index grating  | 
| 06/19/1997 | CA2239730A1 Formation of a refractive index grating  | 
| 06/19/1997 | CA2193249A1 Encryption device and device for decrypting informations carried by asynchronous transfer mode cells  | 
| 06/18/1997 | EP0779761A2 Optical switching unit and control method for same  | 
| 06/18/1997 | EP0779721A2 Channel insertion in a WDM system  | 
| 06/18/1997 | EP0779719A2 Polarization diversity receiver systems  | 
| 06/18/1997 | EP0779718A2 Optical communication network and method for optically detecting a fault  | 
| 06/18/1997 | EP0672284B1 Measuring process and device with analog optical signal transmission  | 
| 06/18/1997 | CN1152381A Device for transmitting and receiving rotating light signals  | 
| 06/18/1997 | CN1152224A Chirped-pulse multiple wavelength telecommunications system  | 
| 06/18/1997 | CN1152223A Remote IR receiver with strong light and electromagnetic immunity  | 
| 06/17/1997 | US5640262 Control system and connecting device  | 
| 06/17/1997 | US5640160 Pulse modulation method  | 
| 06/17/1997 | CA2118974C System for restoring the transmission quality in a link including amplifiers in cases of failure in one or several amplifiers  | 
| 06/16/1997 | CA2192922A1 Method of and apparatus for data communications between portable information terminals  | 
| 06/12/1997 | WO1997021288A1 Full duplex optical modem for broadband access network  | 
| 06/12/1997 | WO1997021261A1 Eyesafe transmission of hazardous laser beams  | 
| 06/12/1997 | DE19649218A1 Optical switch with shutter slid between light emitter and fibre end  | 
| 06/11/1997 | EP0778682A2 Optical fiber amplifier repeating system  | 
| 06/11/1997 | EP0778681A2 Linearisation circuit device  | 
| 06/11/1997 | EP0778479A2 Optical ADD/DROP multiplexer device  | 
| 06/05/1997 | WO1997020403A1 Dispersion management system for soliton optical transmission system  | 
| 06/05/1997 | WO1997020399A1 Transmission system for a non linear transmission medium  | 
| 06/05/1997 | WO1997015969A3 Optical transmission link capable of high temperature operation without cooling with an optical receiver module having temperature independent sensitivity performance and optical transmitter module with laser diode source  | 
| 06/05/1997 | DE19543385C1 Mobile optical signal transmitter  | 
| 06/04/1997 | EP0777353A2 WDM token bus network  | 
| 06/04/1997 | EP0777347A2 Optical transmission system and optical repeater  | 
| 06/04/1997 | EP0777346A2 Optical amplifier and optical communication system employing the same  | 
| 06/04/1997 | EP0777345A2 Surveillance method of optical amplifier-repeater transmission system  | 
| 06/04/1997 | EP0776558A1 Quantum cryptography  | 
| 06/04/1997 | EP0776554A1 Optical emitting head including a laser and a modulator  | 
| 06/04/1997 | EP0776553A1 An infrared communication device for multistandard operations  | 
| 06/04/1997 | EP0776552A1 Fault location in optical communication systems  | 
| 06/04/1997 | EP0776491A1 Polarization independent optical directional coupler wavelength tunable filters/receivers  | 
| 06/04/1997 | EP0653129B1 Free space optical communication system  | 
| 06/04/1997 | EP0653076B1 Optical radiation devices  | 
| 06/04/1997 | CN2255699Y Automatic cutting controller for laser  | 
| 06/04/1997 | CN1151229A In-line predistorted for linearization of electronic and optical signals  | 
| 06/03/1997 | US5636301 Optical waveguide amplifiers  | 
| 06/03/1997 | US5636264 Radio telephone system which utilizes an infrared signal communication link  | 
| 06/03/1997 | US5636053 Fiberoptic amplifier system with noise figure reduction  | 
| 06/03/1997 | US5636048 Equalizing amplifier, receiver using the same and preamplifier  | 
| 06/03/1997 | US5636047 Optical interconnection system  | 
| 06/03/1997 | US5636046 Optical dispersion compensation method using transmissible band determined from synergetic effect of self phase modulation and group velocity dispersion  | 
| 06/03/1997 | US5636045 Photonic switching method and photonic switch utilizing same  | 
| 06/03/1997 | US5635915 Transmission system  | 
| 05/29/1997 | WO1997019529A1 Device for the optical transmission of signals  | 
| 05/29/1997 | WO1997019528A1 Optical transmitter  | 
| 05/29/1997 | WO1997019527A1 Submillimeter indirect heterodyne receiver and mixer element  | 
| 05/29/1997 | WO1997019526A1 Improvements in transmission of optical signals  | 
| 05/29/1997 | CA2237661A1 Submillimeter indirect heterodyne receiver and mixer element  | 
| 05/28/1997 | EP0776103A2 Optical communication system using optical phase conjugation to suppress waveform distortion caused by chromatic dispersion and optical kerr effect  | 
| 05/28/1997 | EP0557341B1 Optical clock recovery  | 
| 05/28/1997 | DE19543550A1 Optical communications network for use with optical sub-sea cables  | 
| 05/27/1997 | US5633961 Switched optical interconnect  | 
| 05/27/1997 | US5633749 Optical fiber amplifier having light surge preventing function  | 
| 05/27/1997 | US5633743 Optical communications system using tunable tandem Fabry-Perot etalon  | 
| 05/27/1997 | US5633742 Optical data communication and location apparatus, system and method and transmitters and receivers for use therewith  | 
| 05/27/1997 | US5633741 Multichannel optical fiber communications  | 
| 05/22/1997 | WO1997018645A1 Multi-tone phase modulation for light wave communication system  | 
| 05/21/1997 | EP0774879A1 System for monitoring and controlling a point to multipoint access network  | 
| 05/21/1997 | EP0774844A1 Method and device for optically recovering the synchronism of an optical digital signal  | 
| 05/21/1997 | EP0774810A2 Phase conjugate wave generating device, wavelength converting method, optical dispersion compensation method and multi-wavelength light generating device  | 
| 05/21/1997 | EP0774676A2 Positive dispersion optical waveguide  | 
| 05/21/1997 | CN1150514A Access network  | 
| 05/20/1997 | USRE35516 Adiabatic reflection Y-coupler apparatus  | 
| 05/20/1997 | US5631916 Apparatus and method for optically transmitting electrical signals in the 20-300 gigahertz frequency range  | 
| 05/20/1997 | US5631760 Apparatus for the optical heterodyne reception of signals  | 
| 05/20/1997 | US5631759 Automated system, and corresponding method, for measuring receiver pulse width distortion of electro-optic modules  | 
| 05/20/1997 | US5631758 Chirped-pulse multiple wavelength telecommunications system  | 
| 05/18/1997 | CA2188498A1 Positive dispersion optical waveguide  | 
| 05/15/1997 | WO1997017780A2 Optical frequency multiplexing system  | 
| 05/15/1997 | WO1997017773A1 Non-linearity estimation method and device  | 
| 05/15/1997 | WO1997017627A1 Low profile optical device with multiple mounting configurations  | 
| 05/15/1997 | DE19528597A1 Optical information transmission system  | 
| 05/14/1997 | EP0773641A2 Optical communications system using tunable tandem Fabry-Perot etalon  | 
| 05/14/1997 | EP0773640A2 Optical communication system using tandem Fabry-Perot etalon for wavelength selection  | 
| 05/14/1997 | EP0772924A1 Generation of radio frequency modulated optical radiation  | 
| 05/13/1997 | US5629994 Optical WDM coupling systems  | 
| 05/13/1997 | US5629983 Parallel transmission through plurality of optical fibers  | 
| 05/13/1997 | US5629959 Wideband square-law detector having a triangular frequency characteristic as well as a transmission system and a receiver including such a detector  | 
| 05/13/1997 | US5629795 Optical amplifying-repeating transmission system  | 
| 05/13/1997 | US5629789 Passive optical repeater bypass for optical fiber systems  | 
| 05/13/1997 | CA2093991C Light pulse source and light soliton transmission system equipped with said source  | 
| 05/09/1997 | WO1997016679A1 Vertical cavity surface emitting laser arrays for illumination  | 
| 05/07/1997 | EP0772314A2 SCM optical communication system  | 
| 05/07/1997 | EP0772313A2 SCM optical communication system  | 
| 05/07/1997 | EP0772312A2 SCM optical communication system  | 
| 05/07/1997 | EP0772308A2 Light receiving device  |