| Patents for G02F 2 - Demodulating light; Transferring the modulation of modulated light; Frequency-changing of light (2,713) |
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| 02/20/2003 | US20030035201 Spectral modulation in an optical wavelength converter |
| 02/18/2003 | US6522462 All optical logic using cross-phase modulation amplifiers and mach-zehnder interferometers with phase-shift devices |
| 02/13/2003 | US20030031439 Optical pulse code recognition device and optical distributor |
| 02/13/2003 | US20030030887 Wavelength converting apparatus using optical source having fixed wavelength and an optical cross connect system adapting thereof |
| 02/13/2003 | US20030030067 Upconversion luminescence materials and methods of making and using same |
| 02/06/2003 | WO2003010596A1 Optical frequency com generator |
| 02/05/2003 | EP1029400B1 Optical wavelength converter |
| 02/04/2003 | US6515793 Optical waveform shaper |
| 02/04/2003 | US6515792 Fast optical wavelength shifter |
| 02/04/2003 | US6515784 Refractive index manipulating optical inverter |
| 01/30/2003 | WO2002041039A3 Optical converter with a designated output wavelength |
| 01/30/2003 | WO2002033818A3 Frequency synthesiser |
| 01/28/2003 | US6512627 Fiber-optic frequency shifter, optical interferometer and method of generating two complementary optical interference signals using the same |
| 01/23/2003 | WO2003007068A1 A method and an apparatus for reducing amplitude variations when modulating optical signals in semiconductor based components |
| 01/21/2003 | US6509990 Optical timing detection |
| 01/16/2003 | US20030011858 Method and system for optical wavelength conversion and regeneration |
| 01/16/2003 | US20030011777 Method and system for optical spectrum analysis with matched filter detection |
| 01/15/2003 | EP1276004A1 A method and system for optical wavelength conversion and regeneration |
| 01/08/2003 | CN1098551C tunable external cavity laser type all-optical wave-length converter |
| 01/07/2003 | US6504637 Optical regeneration circuit for regenerating signal with deteriorated signal to noise ratio by means of saturable absorption element |
| 01/02/2003 | US20030002797 All optical logic using cross-phase modulation amplifiers and mach-zehnder interferometers with phase-shift devices |
| 01/02/2003 | US20030002117 Redundant path all-optical regeneration, reshaping and wavelength conversion for enhanced yield |
| 12/26/2002 | US20020196488 Recirculating frequency-stacking optical memory |
| 12/24/2002 | US6498675 Wavelength converter |
| 12/12/2002 | US20020186725 Wavelength group wavelength converter and wavelength group exchange using the same |
| 12/12/2002 | US20020186453 Wavelength converter with modulated absorber |
| 12/11/2002 | CN1096137C Optical pulse sequence generator |
| 12/05/2002 | US20020181073 Optical frequency converter |
| 12/05/2002 | US20020179912 Polarization-insensitive integrated wavelength converter |
| 12/04/2002 | EP1262036A1 Controllable low proton source |
| 12/04/2002 | EP1262033A1 Device for detecting the pmd of optoelectronic transmission lines |
| 11/28/2002 | US20020176152 Intensity modulation of optical signals |
| 11/26/2002 | US6487004 Optical image reject down converter |
| 11/26/2002 | US6486958 Method and system for optical spectrum analysis with matched filter detection |
| 11/26/2002 | CA2096422C Intensity dividing device |
| 11/21/2002 | US20020171913 Method and apparatus for acheiving |
| 11/19/2002 | CA2267018C Optical wavelength converter with active waveguide |
| 11/14/2002 | WO2002091645A1 Method and system for demultiplexing non-intensity modulated wavelength division multiplexed (wdm) signals |
| 11/14/2002 | US20020167732 Refractive index manipulating optical inverter |
| 11/14/2002 | US20020167715 Optical fibre emulator |
| 11/07/2002 | US20020163689 Method and apparatus for wavelength conversion |
| 11/07/2002 | US20020162995 Mid infrared and near infrared light upconverter using self-assembled quantum dots |
| 11/06/2002 | EP1255157A1 Intensity modulation of optical signals |
| 11/06/2002 | CN1378095A Light adjustable oscillator |
| 11/05/2002 | US6476312 Radiation concentrator for a photovoltaic device |
| 10/31/2002 | WO2002086616A1 Optical function element and optical function device |
| 10/31/2002 | US20020159730 Optical gate device, manufacturing method for the device, and system including the device |
| 10/30/2002 | EP1253730A2 Method and system for optical spectrum analysis with matched filter detection |
| 10/30/2002 | EP1252965A2 Transparent medium processing device |
| 10/29/2002 | US6473222 Hyper-heterodyning, expanded bandpass apparatus and method |
| 10/24/2002 | US20020154383 Optical systems |
| 10/23/2002 | EP1251712A2 Wavelength group wavelength converter and wavelength group exchange using the same |
| 10/23/2002 | CN1376326A Integrated wavelength tunable single and two-stage all-optical wavelength converter |
| 10/23/2002 | CN1375957A Delay interference wavelength conversion and/or 2R regenerator |
| 10/17/2002 | WO2002082176A1 Wavelength conversion device with integrated absorber |
| 10/15/2002 | CA2189664C Method and device for optically recovering the synchronism of an optical digital signal |
| 10/10/2002 | US20020146046 Tunable optical signal oscillator |
| 10/09/2002 | EP1248336A2 Method and apparatus for wavelength conversion |
| 10/08/2002 | US6462865 All-optical logic with wired-OR multi-mode-interference combiners and semiconductor-optical-amplifier inverters |
| 10/02/2002 | EP1246323A2 Tunable optical oscillator |
| 10/01/2002 | US6459525 Optical fiber type wide bandwidth wavelength converter and wavelength converting optical fiber used therefor |
| 09/30/2002 | CA2369795A1 Method and apparatus for wavelength conversion |
| 09/26/2002 | US20020135865 Optical converter with a designated output wavelength |
| 09/24/2002 | US6456422 Direct optical FM discriminator |
| 09/19/2002 | WO2001024328A9 Method of converting an optical wavelength with an opto-electronic laser with integrated modulator |
| 09/19/2002 | US20020131155 Recursive photonic wavelength shifter |
| 09/19/2002 | US20020130245 Transparent medium processing device |
| 09/17/2002 | US6453082 Device and system for waveform shaping |
| 09/17/2002 | US6452714 Enhanced feed forward optical frequency/phase demodulator |
| 09/17/2002 | CA2101364C Optical fiber amplifier and laser with flattened gain slope |
| 09/10/2002 | US6449408 Soliton pulse generator |
| 09/06/2002 | WO2001016642A9 Integrated opto-electronic wavelength converter assembly |
| 09/05/2002 | US20020122241 Optical wavelength converter |
| 09/05/2002 | US20020122180 Method and system for optical spectrum analysis with a depolarized local oscillator signal |
| 09/04/2002 | EP1237305A2 Multi-wavelength light source |
| 09/03/2002 | US6445839 Optical wavelength-division-multiplexed cross-connect incorporating optically controlled optical switch |
| 08/29/2002 | US20020118441 All-optical logic AND operation in a SOA-based mach-zehnder interferometer |
| 08/28/2002 | CA2373952A1 Optical systems |
| 08/21/2002 | EP1232412A2 Optical wavelength-division-multiplexed cross-connect incorporating optically controlled optical switch |
| 08/20/2002 | US6437905 Optical wavelength converter |
| 08/15/2002 | WO2002063363A1 Transparent optical-electronic-optical switch |
| 08/14/2002 | EP1231811A2 Transparent optical-electronic-optical switch |
| 08/14/2002 | EP1231455A2 Method and system for optical spectrum analysis with a depolarized local oscillator signal |
| 08/13/2002 | US6433919 Method and apparatus for wavelength conversion and switching |
| 08/08/2002 | WO2002061502A1 Optical control method and device |
| 08/08/2002 | US20020105696 Transparent optical-electronic-optical switch |
| 08/08/2002 | CA2436709A1 Optical control method and device |
| 08/06/2002 | US6430342 Fiber grating and fiber optic devices using the same |
| 08/01/2002 | US20020101293 Light-controlled light modulator |
| 07/30/2002 | US6426831 EIT based optical switch/wavelength converter |
| 07/24/2002 | EP1224761A1 Optical data signals |
| 07/24/2002 | EP1224755A1 Direct optical fm discriminator |
| 07/24/2002 | EP1224506A1 A radiation source |
| 07/23/2002 | US6424774 Tunable wavelength four light wave mixer |
| 07/23/2002 | US6424773 Optical gate device, manufacturing method for the device, and system including the device |
| 07/18/2002 | US20020093716 Optical heterodyne frequency modulator |
| 07/16/2002 | US6421152 Optical buffer utilizing a cell pointer |
| 07/11/2002 | US20020090164 Method and apparatus for generating a single-sideband optical frequency comb |
| 07/04/2002 | US20020085266 Wavelength converter with an impedance matched electro-absorption modulator pair |
| 07/04/2002 | US20020085265 Hyper-heterodyning, expanded bandpass apparatus and method |