| Patents for G02F 2 - Demodulating light; Transferring the modulation of modulated light; Frequency-changing of light (2,713) |
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| 05/05/1987 | US4663596 Optical transmission system |
| 04/21/1987 | US4660187 Light signal reading method and apparatus using interference between two light beams of different frequency and polarization |
| 04/21/1987 | CA1220812A1 Anti-stokes raman upconverter for co.sub.2 lasers |
| 04/07/1987 | US4655588 Injection controlled laser transmitter with twin local oscillators |
| 03/12/1987 | WO1987001503A1 Process and device for converting electromagnetic waves |
| 03/05/1987 | EP0148853A4 Quadature fiber-optic interferometer matrix. |
| 03/05/1987 | DE3530738A1 Device for controlling polarisation |
| 02/25/1987 | CN86100557A Speed regulable chopper |
| 02/12/1987 | WO1987000935A1 Optical communications systems |
| 02/10/1987 | CA1217818A Optical modulation/demodulation system |
| 01/21/1987 | EP0208730A1 Optical fibre networks. |
| 12/31/1986 | WO1986007658A1 Digital information transmission system and method |
| 12/31/1986 | WO1986007657A1 Optical communication system |
| 12/31/1986 | WO1986007642A1 Optical coupling assembly |
| 12/31/1986 | CN85105058A Optical receiver |
| 12/23/1986 | US4631498 CW Laser wavemeter/frequency locking technique |
| 12/18/1986 | WO1986007513A1 Coherent optical receivers |
| 12/10/1986 | CN85104415A 光传输系统 The optical transmission system |
| 11/26/1986 | EP0202601A2 Optical pulse receiving circuit |
| 11/26/1986 | EP0137033A4 Degenerate four-wave mixer using multiple quantum well structures. |
| 11/20/1986 | WO1986006849A1 Optical homodyne detection |
| 09/10/1986 | EP0193819A1 System for amplifying and shaping optical pulses |
| 09/03/1986 | EP0193242A2 Optical time-domaine reflectometer with heterodyne receiving |
| 08/20/1986 | CN85101620A Tunable self-interelated measurement device for wavelength |
| 08/13/1986 | EP0190923A2 Acousto-optic frequency shifter utilizing multi-turn optical fiber |
| 07/17/1986 | WO1986004200A1 Optical fibre networks |
| 07/16/1986 | CN85100074A Photoelectrical transducing method for monitoring workpiece grooves and assembling condition during welding |
| 07/02/1986 | CN85104407A Super-high frequency e-o modnolator or demodnlator |
| 06/17/1986 | US4596052 Coherent optical receiver |
| 06/17/1986 | CA1206203A1 Optical coherent detector and demodulator |
| 06/04/1986 | EP0183502A2 Improvements relating to optical pulse generating arrangements |
| 04/01/1986 | US4580267 Photodissociation of an alkali halide |
| 03/18/1986 | CA1202081A1 Optical communication system for drill hole logging |
| 02/26/1986 | EP0172775A2 Semiconductor laser light modulation and demodulation system |
| 02/18/1986 | CA1200853A1 Current to frequency converter |
| 02/11/1986 | CA1200591A1 Light modulator, demodulator and method of communication employing the same |
| 02/04/1986 | US4568408 Fiber optic energy sensor and optical demodulation system and methods of making same |
| 01/22/1986 | EP0168914A1 Optical transmission system |
| 01/15/1986 | EP0168192A2 Receiver for lightwave transmission system using homodyne detection |
| 01/07/1986 | CA1199074A1 Communications network with optical channels |
| 12/11/1985 | EP0164212A2 Single-mode fiber optic saturable absorber |
| 11/27/1985 | EP0162566A2 Fiber optic frequency shifter |
| 10/22/1985 | US4549149 Current to frequency converter switched to increased frequency when current input low |
| 10/08/1985 | CA1194972A1 Acousto-optical channelized processor |
| 09/10/1985 | US4540243 Method and apparatus for converting phase-modulated light to amplitude-modulated light and communication method and apparatus employing the same |
| 08/28/1985 | EP0153124A2 Acousto-optic frequency shifter |
| 07/24/1985 | EP0148853A1 Quadature fiber-optic interferometer matrix. |
| 07/16/1985 | US4530084 Communications network with optical channels |
| 07/09/1985 | US4528525 Scanning laser for a scanning laser radar |
| 07/09/1985 | US4528464 Degenerate four-wave mixer using multiple quantum well structures |
| 06/12/1985 | EP0144190A2 Single mode fiber optic single sideband modulator |
| 05/15/1985 | EP0141524A2 Molecular electro-optical transistor and switch |
| 04/30/1985 | US4514054 Quadrature fiber-optic interferometer matrix |
| 04/24/1985 | EP0138584A2 Self referring type of optical communication system |
| 04/17/1985 | EP0137033A1 Degenerate four-wave mixer using multiple quantum well structures. |
| 04/11/1985 | WO1985001617A1 Molecular electro-optical transistor and switch |
| 03/19/1985 | US4506388 Process and apparatus for the coherent detection and demodulation of a phase-modulated carrier wave in a random polarization state |
| 03/12/1985 | US4504122 System and method for time sharing laser system which also generates a local oscillator signal |
| 02/12/1985 | CA1182525A1 Optical modulation/demodulation system |
| 01/17/1985 | WO1985000221A1 Quadature fiber-optic interferometer matrix |
| 10/23/1984 | US4479199 Information storage system using a photon echo medium |
| 09/18/1984 | CA1174494A1 Optical system for observation in real time with scanning |
| 08/30/1984 | WO1984003364A1 Degenerate four-wave mixer using multiple quantum well structures |
| 08/28/1984 | US4468766 Optical RF downconverter |
| 08/28/1984 | US4468091 Fiber optic energy sensor and demodulation system and method of making same |
| 08/14/1984 | US4466080 Three-dimensional patterned media |
| 07/17/1984 | US4460250 Acousto-optical channelized processor |
| 05/16/1984 | EP0108497A1 Irradiative probe system |
| 04/10/1984 | US4442455 Optical system for observation in real time with scanning |
| 03/13/1984 | US4436376 Light modulator, demodulator and method of communication employing the same |
| 06/28/1983 | US4390247 Continuously variable delay line |
| 04/20/1983 | EP0077292A1 Communication network using monomode fibres as transmission means of optical channels multiplexed in lightcarrier frequency domain |
| 03/02/1983 | EP0072863A1 Light modulator, demodulator and method of communication employing the same |
| 11/23/1982 | US4360272 Fiber optic energy sensor and optical demodulation system and methods of making same |
| 09/02/1982 | WO1982002960A1 Light modulator,demodulator and method of communication employing the same |
| 06/01/1982 | US4333165 Three-dimensional pattern making methods |
| 06/01/1982 | CA1124798A1 Arrangement for separating an optical signal from ambient light |
| 12/29/1981 | CA1115398A1 Controlled emission in heterojunction structures |
| 12/22/1981 | US4306771 Optical pulse shaping device and method |
| 12/02/1981 | EP0040677A1 A method and apparatus for shaping optical pulses |
| 12/01/1981 | US4303855 System for separating an optical signal from ambient light |
| 11/18/1981 | EP0040114A1 Optical real-time viewing system with scanning |
| 11/10/1981 | US4299864 Method of making visible light to far infrared transducer |
| 11/03/1981 | US4298990 Frequency converter of electromagnetic radiation in millimeter and submillimeter wavelength range |
| 09/29/1981 | US4292526 Isotropically sensitive optical filter employing atomic resonance transitions |
| 06/09/1981 | US4272345 Heat exchanging, steam forming hydrogen |
| 09/23/1980 | CA1086411A1 Phototransistor |
| 07/09/1980 | EP0012818A1 Device for separating an optical signal from the ambient light |
| 06/17/1980 | US4208667 Controlled absorption in heterojunction structures |
| 12/11/1979 | US4178514 Transducer of thin insulating film |
| 10/30/1979 | USRE30131 Generating and using coherent optical radiation |
| 05/22/1979 | US4156135 Electronic heterodyning in an optical detector |
| 12/26/1978 | US4131792 Fabry-Perot diplexer |
| 11/07/1978 | US4124524 Neodymium ultraphosphates and process for their preparation |
| 08/15/1978 | US4107721 Phototransistor |
| 06/27/1978 | US4097110 Depolarization measurement by optical heterodyne |
| 03/07/1978 | US4078229 Three dimensional systems |
| 09/27/1977 | US4051374 Imaging device having improved blue response |
| 09/27/1977 | US4051364 Photoparamp array multiplexer |
| 07/19/1977 | US4036554 Laser modulator for producing dark-pulses |