| Patents for G02F 2 - Demodulating light; Transferring the modulation of modulated light; Frequency-changing of light (2,713) |
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| 03/28/1989 | US4817101 Heterodyne laser spectroscopy system |
| 03/28/1989 | US4817100 Monitoring and controlling source stability |
| 03/28/1989 | US4817099 Generation of stable frequency radiation at an optical frequency |
| 03/21/1989 | US4815085 System for generating stable laser pulses |
| 03/14/1989 | US4812776 System for amplifying and shaping optical pulses |
| 03/08/1989 | EP0306401A1 Mid-infrared frequency shifter |
| 03/07/1989 | CA1250897A1 Optical fibre transmission system with polarization modulation and heterodyne coherent detection |
| 02/28/1989 | US4809292 Method and device to transform electromagnetic waves |
| 02/21/1989 | US4807227 Optical wavelength-division switching system with coherent optical detection system |
| 02/14/1989 | US4804930 Molecular electro-optical transistor and switch |
| 02/08/1989 | EP0302275A2 Arrangement for detecting intensity-modulated light signals |
| 02/07/1989 | CA1249743A1 Fiber optic frequency shifter |
| 01/31/1989 | CA1249657A1 Single mode fiber optic single sideband modulator |
| 01/18/1989 | EP0299456A2 Display method and apparatus |
| 01/10/1989 | US4796983 Optical frequency shifter using magnetostatic waves |
| 12/27/1988 | US4794351 Optical mixer for upconverting or downconverting an optical signal |
| 12/27/1988 | US4794249 Optical time domain reflectometer with heterodyne reception |
| 12/20/1988 | US4792999 Wavelength agile optical receiver |
| 12/20/1988 | CA1247197A1 Optical homodyne detection |
| 11/22/1988 | US4786129 Optical coupling assembly |
| 11/22/1988 | CA1245329A1 Apparatus for the controlled transmission of light |
| 11/17/1988 | EP0291368A2 Method and device to detect the variation of propagation times in a ring interferometer and their application in controlling the wavelenght |
| 11/09/1988 | EP0290297A2 Rejection filter for optical signals and its application in ring interferometers |
| 10/26/1988 | EP0288418A2 Optical information transmission method with heterodyne reception |
| 10/19/1988 | EP0287444A1 Device for optical control of a scanning antenna |
| 10/18/1988 | US4778238 Optical communications systems and process for signal amplification using stimulated brillouin scattering (SBS) and laser utilized in the system |
| 10/18/1988 | US4778237 Single-mode fiber optic saturable absorber |
| 10/05/1988 | CN85101620B Tunable self-interelated measurement device for wavelength |
| 09/21/1988 | EP0283222A2 3-Dimensional vision system utilizing coherent optical detection |
| 09/20/1988 | CA1242249A1 Optical fibre networks |
| 08/23/1988 | US4765738 Method and apparatus of measuring frequency response in an optical receiving system |
| 08/10/1988 | EP0277503A2 Optical network for homo or heterodyne reception |
| 08/10/1988 | EP0277427A1 Methods and devices for altering optical polarisation |
| 07/27/1988 | EP0275920A2 Heterodyne optical receiver having an optical coupler and an electronic amplifier |
| 07/27/1988 | EP0275768A1 Device for amplifying optical signals in a photosensitive medium |
| 07/27/1988 | EP0275456A2 Wavelength agile optical receiving device |
| 07/19/1988 | CA1239462A1 Degenerate four-wave mixer using multiple quantum well structures |
| 07/05/1988 | US4755673 Selective thermal radiators |
| 06/14/1988 | US4751477 Semiconductor laser light modulation and demodulation system |
| 06/01/1988 | EP0268741A2 Polarization insensitive coherent lightwave detector |
| 05/25/1988 | EP0268355A2 Optical communications system |
| 05/24/1988 | US4746878 C. W. laser wavemeter/frequency locking technique |
| 05/17/1988 | CA1236883A1 Lightwave transmission system using homodyne detection |
| 05/03/1988 | US4742576 Optical communication system employing coherent detection and method |
| 05/03/1988 | US4741620 Irradiative probe system |
| 04/27/1988 | EP0265278A2 Optical FSK demodulator |
| 04/20/1988 | EP0264119A2 An optical wavelength-division switching system |
| 04/13/1988 | EP0263613A2 An optical mixer for upconverting or downconverting an optical signal |
| 04/05/1988 | US4735485 Acousto-optic frequency shifter using optical fiber and method of manufacturing same |
| 04/05/1988 | US4735484 Acousto-optic frequency shifter utilizing multi-turn optical fiber |
| 03/30/1988 | EP0261724A1 Device for optical heterodyne detection of an optical signal beam and an optical transmission system provided with such a device |
| 03/30/1988 | EP0261479A2 Optical heterodyne receiver |
| 03/30/1988 | CN87106190A 光外差接收器 Optical heterodyne receiver |
| 03/23/1988 | EP0260594A2 Device for controlling light polarization, in particular in a heterodyne or homodyne optical receiver |
| 03/08/1988 | US4729620 Fiber optic frequency shifter |
| 02/02/1988 | US4723317 Optical heterodyne mixers providing image-frequency rejection |
| 02/02/1988 | US4723316 Polarization independent coherent optical heterodyne receivers |
| 01/28/1988 | WO1988000716A1 Wavelength sensitive optical devices |
| 01/27/1988 | EP0254509A1 Wavelength sensitive optical devices |
| 01/27/1988 | CN87104453A 光学外差接收机 Optical heterodyne receiver |
| 01/07/1988 | EP0250819A2 Optical heterodyne receiver |
| 01/05/1988 | US4718120 Polarization insensitive coherent lightwave detector |
| 01/05/1988 | US4717828 Filter detector with narrow bandwith fluorescence |
| 12/09/1987 | EP0248234A1 Continuous polarization control |
| 12/02/1987 | EP0247738A2 Polarization independent coherent optical heterodyne receivers |
| 12/02/1987 | CN87102792A Improvements to liquid crystal light-modulating materials |
| 11/24/1987 | US4708471 Optical time-domain reflectometer using heterodyne reception |
| 11/19/1987 | EP0246004A2 Single-photodiode optical heterodyne mixers |
| 11/19/1987 | DE3615982A1 Endless polarisation control |
| 11/11/1987 | EP0245026A2 Optical heterodyne mixers providing image-frequency rejection |
| 10/29/1987 | DE3613738A1 Signal transmission device with integrated electrooptical light modulator |
| 10/14/1987 | EP0241039A2 Optical-fibre transmission system with polarization modulation and heterodyne coherent detection |
| 10/13/1987 | USRE32521 Light demodulator and method of communication employing the same |
| 10/13/1987 | US4700339 Wavelength division multiplexed soliton optical fiber telecommunication system |
| 09/29/1987 | US4697284 Single-photodiode optical heterodyne mixers |
| 09/23/1987 | EP0238134A2 Optical time domain reflectometer with heterodyn-reception |
| 09/15/1987 | US4693545 Apparatus for the controlled transmission of light |
| 09/09/1987 | EP0235920A1 Monitoring and controlling radiation source stability |
| 09/09/1987 | EP0235919A1 Frequency locking radiation beams |
| 09/09/1987 | EP0235185A1 Process and device for converting electromagnetic waves. |
| 09/08/1987 | US4692687 Optical pulse receiving device |
| 09/02/1987 | EP0234744A1 Reducing fluctuations in a radiation beam characteristic |
| 09/01/1987 | US4691232 X-ray image converter |
| 08/26/1987 | EP0233749A2 Acousto-optic fiber-optic frequency shifter using periodic contact with a surface acoustic wave |
| 08/19/1987 | EP0232319A1 Optical communications systems |
| 08/12/1987 | EP0231627A2 Single-mode optical communication system |
| 08/05/1987 | EP0231016A2 Fiber soliton optical telecommunication system |
| 08/04/1987 | US4684215 Single mode fiber optic single sideband modulator and method of frequency |
| 07/30/1987 | WO1987004572A1 Monitoring and controlling radiation source stability |
| 07/30/1987 | WO1987004571A1 Frequency locking radiation beams |
| 07/30/1987 | WO1987004529A1 Reducing fluctuations in a radiation beam characteristic |
| 07/29/1987 | EP0230369A2 Fiber optic inter-mode coupling single side band frequency shifter |
| 07/21/1987 | US4682053 Method and means for generation of tunable laser sidebands in the far-infrared region |
| 07/15/1987 | EP0228888A2 Optical communications system employing coherent detection and method |
| 07/15/1987 | EP0228435A1 Optical communication system. |
| 07/08/1987 | EP0227773A1 Digital information transmission system and method |
| 07/08/1987 | EP0227729A1 Coherent optical receivers |
| 06/16/1987 | EP0225737A2 Optical state of polorisation modulator |
| 06/16/1987 | EP0225497A1 Optical heterodyne receiver |
| 05/27/1987 | EP0222810A1 Optical homodyne detection. |