| Patents for G02F 2 - Demodulating light; Transferring the modulation of modulated light; Frequency-changing of light (2,713) |
|---|
| 06/03/1992 | EP0488226A2 Optical transmitter |
| 05/26/1992 | US5116132 Ring laser gyroscope output optics detection system |
| 05/19/1992 | US5114226 3-Dimensional vision system utilizing coherent optical detection |
| 05/05/1992 | US5111333 Optical mixer |
| 05/05/1992 | US5111326 Integrated Kerr shutter and fiber laser optical modulation |
| 04/28/1992 | US5109446 Opto-electronic correlator including a spiral light waveguide |
| 04/28/1992 | CA1299712C Heterodyne laser spectroscopy system |
| 04/11/1992 | CA2027252A1 Spatial light modulator using electron trapping materials |
| 04/07/1992 | US5103494 Optoelectronic arrangement |
| 04/01/1992 | CN1059970A Compensating method of high-precision and-intensity optical fibre sensor with dual-wavelength modulation |
| 04/01/1992 | CN1059969A Compensating method of optical fibre sensor with non-reciprocity effect |
| 03/25/1992 | EP0477086A1 Light frequency converter |
| 03/24/1992 | US5099350 Method and device for the optical filtering and photodetection of intensity-modulated optical signals |
| 03/18/1992 | EP0475376A2 Apparatus and method for linearizing the operation of an external optical modulator |
| 02/04/1992 | CA1295431C Optic system useful with metal service lines |
| 02/04/1992 | CA1295122C Photochromic lens |
| 01/14/1992 | US5081712 Method and apparatus for obtaining phase in sensitive and/or polarization-insensitive optical heterodyne receiver for a fsk-modulated transmission signal |
| 01/08/1992 | EP0137033B1 Degenerate four-wave mixer using multiple quantum well structures |
| 01/07/1992 | CA1293997C Polarization insensitive optical communication device utilizing optical preamplification |
| 01/01/1992 | CN1057556A Radio communication system, particularly cellular mobile-radio system |
| 12/31/1991 | US5077816 Fiber embedded grating frequency standard optical communication devices |
| 12/24/1991 | US5075793 Apparatus for detecting intensity-modulated light signals |
| 12/18/1991 | EP0461711A2 Device for optical heterodyne detection and mirror system suitable for use in such a device |
| 12/18/1991 | EP0461710A1 Device for optical heterodyne detection and optical component suitable for use in such a device |
| 12/18/1991 | EP0461380A2 Data transmission radio system, particularly cellular radio system |
| 12/18/1991 | CN1015110B Improvements to liquid crystal light-modulating materials |
| 12/17/1991 | US5073725 Optical harmonic generator |
| 11/21/1991 | EP0456802A1 Atomic resonance filter detector employing inert buffer gas |
| 11/09/1991 | WO1991017474A1 Optical signal regenerator and optical communications system incorporating same |
| 11/09/1991 | CA2082389A1 Optical signal regenerator and optical communications system incorporating same |
| 11/06/1991 | EP0455449A2 Full color upconversion display |
| 10/29/1991 | US5062155 Modulated light wave demodulator |
| 10/22/1991 | US5060312 Polarization independent coherent lightwave detection arrangement |
| 10/22/1991 | US5060311 Method and apparatus for obtaining phase or polarization insensitive optical heterodyne reception for dpsk or ask-modulated transmission signal |
| 09/25/1991 | EP0447752A2 WDM optical communication with optical beams modulated by channel discrimination signals |
| 09/24/1991 | US5052051 Heterodyne receiver for coherent optical communication |
| 09/19/1991 | WO1991014202A1 All optical image processing and pattern recognition apparatus using stimulated photon echoes |
| 09/11/1991 | EP0445943A2 Polarization independent coherent lightwave detection arrangement |
| 09/11/1991 | EP0445293A1 Light receiving system of heterodyne detection and image forming device for light transmission image using said light receiving system |
| 09/10/1991 | US5048120 Arrangement for the generation of an FSK-modulated optical signal having two polarization states that are orthogonal to one another from an FSK-modulated optical transmitted signal |
| 08/27/1991 | US5043993 Optical signal frequency converter and mixer |
| 08/20/1991 | US5041778 Electrooptic measurement systems for frequency analysis of very wide range signals |
| 07/30/1991 | US5035506 Coherent detection with increased sensitivity using four-wave amplification |
| 07/17/1991 | EP0437020A2 Output optics detection system |
| 07/16/1991 | US5031998 Polarization control on signal beams for principal-state bidirectional transmission through an optical fiber |
| 07/10/1991 | EP0436202A1 A narrowband laser source |
| 07/10/1991 | EP0436144A1 Optical harmonic generator and a device using the same |
| 07/09/1991 | US5031236 Polarization insensitive optical signal reception |
| 07/09/1991 | US5029999 Laser radar device |
| 07/02/1991 | US5029253 Spatial light modulator using electron trapping materials |
| 06/26/1991 | EP0434235A2 Tone spacing and power level monitoring for FSK lightwave systems |
| 06/25/1991 | CA1285230C Fiber optic inter-mode coupling single side band frequency shifter |
| 06/19/1991 | EP0432544A2 Optronic correlator |
| 06/18/1991 | US5025488 Optical heterodyne detector |
| 06/18/1991 | CA1284907C Single-mode optical fiber tap |
| 06/11/1991 | US5023950 Optical transmitter, optical receiver and optical transmission apparatus and control method of optical receiver |
| 06/11/1991 | US5023948 Polarization modulation of optical signals using birefringent medium |
| 06/11/1991 | US5022731 Device for optical frequency translation and a modulator in which said device is employed |
| 06/07/1991 | WO1991008453A1 Atomic resonance filter detector employing inert buffer gas |
| 06/07/1991 | CA2046593A1 Atomic resonance filter detector employing inert buffer gas |
| 05/23/1991 | DE3938636A1 IR image converter - has carrier plate with luminescent coating to convert IR into proportional visible light |
| 04/30/1991 | CA1283694C Reducing fluctuations in a radiation beam characteristic |
| 04/30/1991 | CA1283570C Acousto-optic fiber-optic frequency shifter using periodic contact with a surface acoustic wave |
| 04/18/1991 | WO1991005239A1 Light receiving system of heterodyne detection and image forming device for light transmission image using said light receiving system |
| 04/17/1991 | EP0422581A2 Spatial light modulator using electron trapping materials |
| 04/16/1991 | US5007693 Method for controlling polarizations of signal lights in an optical frequency division multiplex coherent communication system |
| 04/09/1991 | CA1282832C Method for optical communication of information |
| 03/27/1991 | EP0418546A2 Optical mixer |
| 03/26/1991 | US5003625 Optical heterodyne detection and integrated optical component suitable for use in such a device |
| 03/26/1991 | US5003179 Full color upconversion display |
| 03/13/1991 | EP0222810B1 Optical homodyne detection |
| 03/06/1991 | EP0415241A2 Durable infrared target having fast response time |
| 03/06/1991 | EP0415224A2 Arrangement for generating an FSK-modulated optical signal consisting of two orthogonally mutually polarized states from an FSK modulated emitted optical signal |
| 03/01/1991 | CA2020454A1 Durable infrared target having fast response time |
| 02/26/1991 | CA1280818C Single-photodiode optical heterodyne mixers |
| 02/13/1991 | EP0412543A2 Polarization control on signal beams for principal-state bidirectional transmission through an optical fiber |
| 01/23/1991 | EP0409660A2 Improvements relating to optical systems |
| 01/23/1991 | EP0409074A2 Optical-electronic device |
| 01/15/1991 | CA1279133C Wavelength sensitive optical devices |
| 01/08/1991 | US4983844 Fast atomic line filter |
| 01/08/1991 | US4983024 Optical phase to amplitude demodulation |
| 12/27/1990 | EP0228434B1 Optical coupling assembly |
| 12/25/1990 | US4979825 Device for measuring optical frequency modulation characteristics |
| 12/18/1990 | US4979235 Polarization controller for use in optical fiber communication system |
| 12/18/1990 | CA1278023C Monitoring and controlling radiation source stability |
| 12/12/1990 | EP0401558A2 Method for making an heterodyne optical receiver insensitive to phase and/or polyrisation for a DPSK or ASK modulated emitting signal |
| 12/12/1990 | EP0401557A2 Method to achieve optical heterodyne reception, insensitive to phase and/or polarization, for an FSK-modulated signal |
| 12/11/1990 | US4977620 Optical homodyne detection |
| 12/11/1990 | US4976513 Tunable wavelength filter |
| 12/04/1990 | US4975655 Method and apparatus for upshifting light frequency by rapid plasma creation |
| 11/27/1990 | US4973140 Reentrant traveling-wave single sideband optical modulator |
| 11/20/1990 | US4972515 Polarization diversity receiver having little deteriorated sensitivity despite use of a square-law demodulator having a restricted dynamic range |
| 11/07/1990 | EP0396370A2 Random-access digitally-tuned coherent optical receiver |
| 10/24/1990 | EP0393967A2 Polarization controller for use in optical fiber communication system |
| 10/24/1990 | EP0393373A2 Optical heterodyne receiver |
| 10/23/1990 | US4965858 Polarization diversity optical receiver for coherent optical communication |
| 10/17/1990 | EP0392416A1 Process for applying a controlled delay to a signal, particularly an ultra-high frequency signal, delay device, optical transmission system and antenna system applying this process |
| 10/17/1990 | CN1010071B Optical transmission system |
| 10/03/1990 | EP0390069A2 Polarization diversity heterodyne receiver of a baseband combining type in which i.f. signals are adjusted by negative feedback from a device output signal |
| 09/26/1990 | EP0232319A4 Optical communications systems |