Patents
Sitemap › G02 - Optics › G02F - Devices or arrangements, the optical operation of which is modified by changing the optical properties of the medium of the devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light, e.g. switching, gating, modulating or demodulating; Techniques or procedures for the operation thereof; Frequency-changing; Non-linear optics; Optical logic elements; Optical analogue/digital converters › G02F 2 - Demodulating light; Transferring the modulation of modulated light; Frequency-changing of light
Patents for G02F 2 - Demodulating light; Transferring the modulation of modulated light; Frequency-changing of light (2,713)
03/2000
03/28/2000CA2171337C Optical pulse sequence generator
03/15/2000CN1050429C Compound wave electrode electrooptical modulator and making method of its electrode
03/08/2000CN1246759A Regenerative equipment of on-line regenerative optical signal and transmission system containing it
03/07/2000US6035078 Integrated interferometer structure
02/2000
02/02/2000EP0976217A2 Optical transmission system with a receiver using full optical clock recovery
01/2000
01/26/2000EP0975106A1 Device for on-line regeneration of an optical soliton signal by synchronous modulation of these solitons and transmission system comprising such a device
01/23/2000CA2274747A1 Device for regenerating optical soliton signals on-line by synchronous soliton modulation and transmission system using such a device
01/05/2000CN1048094C Optical device
12/1999
12/28/1999US6008931 Optical frequency generator
12/21/1999US6005708 Wavelength converter for binary optical signals
12/21/1999CA2134256C Apparatus and method for referencing an optical receiver
12/08/1999CN1237717A Tunable external cavity laser type all-optical wave-length converter
12/07/1999US5999293 Optical switch
12/07/1999US5999283 Optical logic devices and methods
11/1999
11/30/1999US5995530 Interferometric semiconductor laser with low-loss coupling of light therefrom and an arrangement with such a laser
11/23/1999US5991062 Method and device for obtaining error signals for spatial beam regulation of an optical coherent receiver
11/18/1999WO1999059010A1 Fiber grating and fiber optic devices using the same
11/18/1999CA2295815A1 Fiber grating and fiber optic devices using the same
11/11/1999WO1999041855A3 Optical transmission system with a receiver using full optical clock recovery
11/03/1999EP0953866A1 Digital optical signal shaping device
11/02/1999US5978129 Wavelength converter for binary optical signals
10/1999
10/30/1999CA2266058A1 Binary optical signal-forming device
10/26/1999US5973820 FM modulation device
10/19/1999US5970077 Apparatus for efficiently transforming a single frequency, linearly polarized laser beam into principally two orthogonally polarized beams having different frequencies
10/07/1999WO1999050628A1 Fiber-optic frequency shifter, optical interferometer and method of generating two complementary optical interference signals using the same
10/07/1999CA2291615A1 Fiber-optic frequency shifter, optical interferometer and method of generating two complementary optical interference signals using the same
09/1999
09/28/1999US5959764 Wavelength converter, optically operational device and optical pulse phase detecting circuit
09/28/1999CA2186819C Device for and method of modifying the spectral characteristics of optical signals
09/21/1999US5956172 System and method using layered structure for three-dimensional display of information based on two-photon upconversion
09/15/1999EP0749591B1 Optical device
09/01/1999EP0939425A1 Plasma display panel
08/1999
08/24/1999US5943160 System and method for co-doped three-dimensional display using two-photon upconversion
08/19/1999WO1999041855A2 Optical transmission system with a receiver using full optical clock recovery
08/17/1999US5940207 Wavelength converter
08/10/1999US5937118 Quantum synthesizer, THz electromagnetic wave generation device, optical modulation device, and electron wave modulation device
08/03/1999US5933554 Compact optical-optical switches and wavelength converters by means of multimode interference mode converters
06/1999
06/30/1999EP0826254B1 Optical frequency generator
06/22/1999US5915050 Optical device
06/22/1999US5914807 Method and system for three-dimensional display of information based on two-photon upconversion
06/17/1999WO1999030393A1 Dual beam generator
06/15/1999US5912755 Synchronous polarization and phase modulation for improved performance of optical transmission systems
05/1999
05/20/1999WO1999025081A1 Optical wavelength converter
05/20/1999CA2308638A1 Optical wavelength converter
05/11/1999US5903384 Wavelength converter suitable for high bit rates
04/1999
04/29/1999WO1999021053A1 Soliton pulse generator
04/29/1999CA2304593A1 Soliton pulse generator
04/27/1999US5898720 Optical element
04/21/1999CN1214526A Complex travelling-wave electrode optoelectronic modulator and making method of the electrode
04/06/1999CA2143846C Non-linear semiconductor optical device
03/1999
03/30/1999US5889902 Monolithic integrated optoelectronic semiconductor component and process for manufacturing the same
03/23/1999US5886804 Optical transmission system employing single mode optical transmission fiber
03/17/1999EP0902512A2 Integrated interferometric structure
03/10/1999EP0901245A1 Optical decision circuit and use thereof
03/08/1999CA2243858A1 Integrated interferometric structure
02/1999
02/23/1999CA2004716C Superfluorescent broadband fiber laser source
01/1999
01/26/1999US5864421 Optical frequency shifter and optical soliton-like return-to-zero pulse transmission system using optical frequency shifter
01/20/1999EP0835542B1 Wavelength converter
01/07/1999WO1999000697A1 Modulation instability wavelength converter
01/07/1999CA2291149A1 Modulation instability wavelength converter
12/1998
12/16/1998EP0884867A2 Equalisation, pulse shaping and regeneration of optical signals
12/02/1998EP0881787A2 Light transmission apparatus using carrier wave
12/02/1998EP0881518A1 Optical control method and optical controller
11/1998
11/25/1998EP0880054A2 Wavelength converter and method of operation
11/25/1998EP0723716B1 Optical pulse sequence generator
11/17/1998US5838854 Integrated optical control element and a method for fabricating the same and optical integrated circuit element and optical integrated circuit device using the same
11/10/1998US5835258 Device for amplification of amplitude modulation ratio of an optical beam
11/04/1998EP0875782A2 Wavelength converter
10/1998
10/27/1998US5828679 Optical clock signal extraction using non-linear optical modulator
10/14/1998EP0871061A1 Wavelength converter of optical binary signals
10/13/1998US5822476 Time delay device for optical signals
10/06/1998US5818587 Image measuring apparatus
10/06/1998CA2044670C Radio communication system
09/1998
09/30/1998EP0868045A2 Time delay device for optical signals
09/29/1998US5815615 Integrated optical control element and a method for fabricating the same and optical integrated circuit element and optical integrated circuit device using the same
09/09/1998EP0862818A1 Submillimeter indirect heterodyne receiver and mixer element
09/02/1998EP0861513A1 Frequency synthesizer
09/02/1998EP0579620B1 A terminal for a frequency divided, optical communication system
08/1998
08/26/1998EP0830721B1 Optical amplifier
08/26/1998CN1191428A Single sideband modulators
08/25/1998US5798858 Method and apparatus for reducing adverse effects of optical beat interference in optical communication systems
08/19/1998EP0859268A1 Wavelength converter of binary optical signals
08/18/1998US5796765 Optical pulse seqeunce generator
08/18/1998US5796506 Submillimeter indirect heterodyne receiver and mixer element
07/1998
07/29/1998EP0855617A2 Single sideband modulators
07/28/1998US5786930 Optical frequency sweep signal generator
07/28/1998CA2098094C Optical communications system
07/22/1998EP0854379A2 All-optical timing recovery
07/14/1998US5781326 Apparatus for shaping binary optical signals, and use thereof to modify said signals
07/07/1998US5777766 Method and device for optically recovering the synchronism of an optical digital signal
06/1998
06/30/1998US5774246 Apparatus for demultiplexing an optical digital signal
06/24/1998EP0849622A2 All-optical sampling by modulating a pulse train
06/10/1998EP0561918B1 Optical communications system
06/09/1998US5764403 Panel display using two-frequency upconversion fluorescence
05/1998
05/19/1998US5754714 Semiconductor optical waveguide device, optical control type optical switch, and wavelength conversion device
05/19/1998US5754334 Device for and method of modifying the spectral characteristics of optical signals
05/19/1998US5754325 Optical regenerating circuit
05/14/1998WO1998020376A1 All-optical wavelength coded logic gates
05/05/1998US5748351 Optical power detector, and multi-level digital transmission system incorporating the same
04/1998
04/29/1998CN2280279Y Pre-processing unit for round grating code device
04/21/1998US5742415 Optical switching device
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