| Patents for G02F 2 - Demodulating light; Transferring the modulation of modulated light; Frequency-changing of light (2,713) |
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| 02/09/1994 | EP0581948A1 Method and apparatus for compressing a light pulse |
| 02/08/1994 | CA2000997C Heterodyne receiver for coherent optical communication |
| 02/02/1994 | EP0235185B1 Process and device for converting electromagnetic waves |
| 01/26/1994 | EP0579620A1 A terminal for a frequency divided, optical communication system |
| 01/05/1994 | EP0577036A1 A tunable-filter control method, tunable-filter control apparatus and optical communication system using the same |
| 12/28/1993 | US5274381 Phased array antenna system |
| 12/23/1993 | WO1993025934A1 A method and a device for correlating two or more optical pulse signals |
| 12/23/1993 | CA2136960A1 A method and a device for correlating two or more optical pulse signals |
| 12/14/1993 | US5271024 Optical fiber amplifier and laser with flattened gain slope |
| 11/30/1993 | US5267010 Laser radar device |
| 11/23/1993 | US5264960 Optical wavelength shifter |
| 11/16/1993 | US5262889 Optical frequency shifter |
| 11/10/1993 | EP0569257A1 Infrared-to-visible up-conversion material, and infrared light identification elements comprising same |
| 11/09/1993 | CA2095666A1 Infrared-to-visible up-conversion material |
| 10/27/1993 | EP0566797A2 Single crystal of 3-(2-furyl)methacrylic acid anhydride |
| 10/26/1993 | US5257126 Coherent optical fiber communications system using polarization modulation |
| 10/06/1993 | EP0564043A1 Optical hybrid |
| 10/06/1993 | EP0564042A1 Optical hybrid |
| 10/06/1993 | EP0563073A1 Optical mixing device |
| 10/06/1993 | EP0563068A1 Intensity dividing device |
| 10/06/1993 | EP0563067A1 Optical device. |
| 10/05/1993 | US5251053 Radio communication system |
| 09/29/1993 | EP0561918A1 Optical communications system |
| 09/28/1993 | US5249072 Heterodyne receptor system and arrangement for visualizing optical transmission images |
| 09/22/1993 | EP0561706A1 Emitter/receiver with coherent detection |
| 09/21/1993 | US5247168 Light frequency converter having laser device connected in series with photodetector |
| 09/08/1993 | EP0558948A1 An optical semiconductor apparatus, a method of driving the same and an optical transmission system using the same |
| 09/07/1993 | CA1322038C Device for optical heterodyne detection and integrated optical component suitable for use in such a device |
| 08/25/1993 | WO1993017472A1 Method and apparatus for compressing a light pulse |
| 08/25/1993 | CA2103907A1 Method and apparatus for compressing a light pulse |
| 08/24/1993 | US5239401 Optical modulator for cancellation of second-order intermodulation products in lightwave systems |
| 07/28/1993 | EP0553029A1 Photoreceiver for frequency modulated optical signals, emitter-receiver, and corresponding optical link |
| 07/20/1993 | CA1320532C Monitoring and controlling radiation source stability |
| 07/13/1993 | US5227624 Optical sensing systems with plural wavelengths and wavelength sensitive sensors |
| 07/13/1993 | CA1320250C Electrooptic measurement systems for frequential analysis of very wide range signals |
| 07/07/1993 | EP0550309A1 Non-selective photoreceiver for frequency modulated optical signals and optical link using the photoreceiver |
| 06/24/1993 | WO1993012474A1 Time delay beam formation |
| 06/24/1993 | CA2125696A1 Time delay beam formation |
| 06/22/1993 | US5222161 Method and apparatus for compressing a light pulse |
| 06/16/1993 | EP0546148A1 Laser radar device. |
| 06/15/1993 | US5220163 Microwave adaptive transversal filter employing variable photonic delay lines |
| 05/11/1993 | US5210633 Apparatus and method for linearizing the operation of an external optical modulator |
| 05/04/1993 | US5208462 Wide bandwidth solid state optical source |
| 04/20/1993 | US5204770 All optical image processing and pattern recognition apparatus using stimulated photon echoes |
| 04/13/1993 | US5202776 Time delay beam formation |
| 04/06/1993 | CA1315565C2 Spectroscopy system for atomic vapor laser separation |
| 03/31/1993 | EP0534147A1 Optical frequency comb generator |
| 03/31/1993 | EP0534146A2 Optical comb generator |
| 03/31/1993 | EP0534145A2 Optical comb generator |
| 03/30/1993 | US5199086 Electro-optic system |
| 03/03/1993 | EP0529240A1 A frequency modulation coherent optical communications system with continuous polarisation scrambling |
| 03/02/1993 | US5191625 Terminal for a frequency divided, optical communication system |
| 03/02/1993 | US5191457 Wdm optical communication wherein optical beams are modulated by channel discrimination signals of different frequencies by data signals |
| 02/24/1993 | EP0527871A1 Optical signal regenerator and optical communications system incorporating same. |
| 02/24/1993 | CN1069334A Analog scan convertor based on dmd |
| 02/18/1993 | WO1993003384A1 Laser radar device |
| 01/27/1993 | EP0524382A2 Optical oscillator sweeper |
| 01/20/1993 | EP0523828A2 Optically pumped up coverting light source |
| 01/07/1993 | EP0521494A2 A coherent optical-fibre communications system using polarisation modulation |
| 01/05/1993 | CA2073108A1 Coherent optical-fibre communications system using polarization modulation |
| 12/20/1992 | CA2067464A1 Optically pumped up converting light source |
| 12/09/1992 | EP0517532A2 Optical wavelength shifter |
| 12/08/1992 | US5170275 Optical mixing for heterodyne detection |
| 11/25/1992 | EP0514787A2 Continuous polarization control |
| 11/24/1992 | US5166948 Optically pumped up converting light source |
| 11/17/1992 | US5164954 Wavelength-tunable traveling-wave semiconductor ring-laser |
| 11/03/1992 | US5160992 Device for the conversion of an infrared radiation into another radiation of energy greater than that of this infrared radiation |
| 10/29/1992 | WO1992019051A1 A terminal for a frequency divided, optical communication system |
| 10/06/1992 | US5153933 Apparatus for generating a comb of optical teeth of different wavelengths |
| 09/22/1992 | US5150248 Optical communication system |
| 09/01/1992 | US5144467 Optical tuning method and apparatus suitable for selective reception of optical frequency division multiplex signals |
| 09/01/1992 | US5144145 Optical image subtraction employing electron trapping materials |
| 09/01/1992 | CA1307029C Endless polarization control for optical heterodyne or homodyne detection of an optical signal beam |
| 08/25/1992 | US5142402 Polarization diversity optical receiving apparatus and method |
| 08/20/1992 | DE4103687A1 PLL for demodulation of specified optical signals - has pilot generator, evaluator circuit and oscillator whose phase is modulated by pilot signal |
| 08/19/1992 | EP0499128A2 Blockage-protected polarisation control device |
| 08/18/1992 | US5140452 Long-distance high-speed optical communication scheme |
| 08/11/1992 | US5138476 Polarization deversity heterodyne receiver of a baseband combining type in which i.e. signals are adjusted by negative feedback from a device output signal |
| 08/11/1992 | CA1306287C Transceiver for a bidirectional coherent optical transmission system |
| 08/06/1992 | WO1992013291A1 Electro-optic system |
| 08/06/1992 | WO1992011554A3 Intensity dividing device |
| 08/04/1992 | US5136168 Atomic resonance filter detector employing inert buffer gas |
| 08/04/1992 | CA1306010C Optical transmitter, optical receiver and optical transmission apparatus and control method of optical receiver |
| 07/28/1992 | US5134686 Compact vector-matrix multiplier system employing electron trapping materials |
| 07/21/1992 | US5132829 Tone spacing and power level monitor for fsk lightwave systems |
| 07/21/1992 | CA1305523C Methods and devices for altering optical polarisation |
| 07/09/1992 | WO1992011562A1 Optical mixing device |
| 07/09/1992 | WO1992011555A1 Optical device |
| 07/09/1992 | WO1992011554A2 Intensity dividing device |
| 07/08/1992 | EP0493817A2 Optical modulator for cancellation of second-order intermodulation products in lightwave systems |
| 07/08/1992 | EP0493816A2 Single sideband optical modulator for lightwave systems |
| 07/01/1992 | CA2058638A1 Single sideband optical modulator for lightwave systems |
| 07/01/1992 | CA2058580A1 Optical modulator for cancellation of second-order intermodulation products in lightwave systems |
| 06/30/1992 | US5126557 Device for optical heterodyne detection and optical component suitable for use in such a device |
| 06/23/1992 | US5124828 Device for heterodyne detection of an optical signal and for reducing noise in the signal using polarization control elements |
| 06/12/1992 | WO1992010887A1 Optical communications system |
| 06/10/1992 | EP0489525A2 Improvements relating to optical sensing systems |
| 06/09/1992 | US5121241 Transceiver for a bidirectional coherent optical transmission system |
| 06/07/1992 | CA2056643A1 Optical sensing systems |
| 06/04/1992 | DE4038503A1 Optical fibre coupler for connection of glass fibre to plastics fibre - has converter for receiving infrared radiation at one end and transmitting visible light from other end |