Patents
Sitemap › G02 - Optics › G02F - Devices or arrangements, the optical operation of which is modified by changing the optical properties of the medium of the devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light, e.g. switching, gating, modulating or demodulating; Techniques or procedures for the operation thereof; Frequency-changing; Non-linear optics; Optical logic elements; Optical analogue/digital converters › G02F 3 - Optical logic elements; Optical bistable devices
Patents for G02F 3 - Optical logic elements; Optical bistable devices (1,678)
03/1990
03/21/1990EP0359468A2 Optical correlator and method of optical correlation
03/20/1990US4910737 Bistable optical device comprising a lightly doped optical fibre
02/1990
02/27/1990US4905312 Image logic operation device
02/27/1990US4904859 Self electrooptic effect device employing asymmetric quantum wells
02/27/1990US4904858 Programmable optical logic devices operable by measuring the ratio of optical data signal power to optical reference threshold power
02/20/1990CA1266124A1 Optical resonant assembly
02/13/1990US4900134 Optical device
02/13/1990US4900115 Optical logic circuit useful for bit serial optic computing
01/1990
01/31/1990EP0353037A2 Bistable semiconductor laser diode device
01/17/1990EP0350960A2 Optical computer including pipelined conversion of numbers to residue representation
01/17/1990EP0350760A2 Integrated electro-optic arithetic/logic unit and method for making the same
12/1989
12/20/1989EP0347232A2 Optical devices
12/20/1989EP0347054A2 Light intensity correlating apparatus
12/19/1989US4888783 Semiconductor laser device
12/19/1989US4888724 Optical analog data processing systems for handling bipolar and complex data
12/19/1989US4887877 Optical devices and optical integrated circuits
12/13/1989EP0345971A2 Apparatus comprising an optical or opto-electronic device
11/1989
11/30/1989WO1989011674A1 Optically anisotropic photochromic materials and applications
11/29/1989EP0343610A2 Method of characterizing bistable semiconductor lasers
11/28/1989US4884119 Integrated multiple quantum well photonic and electronic devices
11/21/1989US4882235 Liquid crystal cell window
11/21/1989US4881788 Apparatus and methods for processing optical signal with waveguides exhibiting soliton effects
11/08/1989EP0340779A2 Optical quantum interference device
11/02/1989WO1989010579A1 Non-linear optical amplification
10/1989
10/31/1989US4877952 Faser cavity optical memory with optical storage and readout
10/31/1989US4877312 Bistable optical photorefractive crystal device
10/25/1989EP0338863A1 Non-linear optical amplification
10/25/1989EP0338445A2 Bistable optical devices
10/10/1989US4873690 Optical switch
09/1989
09/21/1989WO1989008937A1 Polarisation switching in active devices
09/13/1989EP0332446A1 Polarisation switching in active devices
09/12/1989US4866660 Optoelectraulic devices based on interference induced carrier modulation
09/06/1989EP0331462A1 Liquid crystal cell window
09/06/1989EP0330710A1 Optical digital matrix multiplication apparatus
09/05/1989US4864524 Combinatorial logic-based optical computing method and apparatus
09/05/1989US4864168 Process for controlling an optical pnpn thyristor to be driven
09/05/1989US4863230 Optically controlled selector
08/1989
08/29/1989US4861976 Optical or opto-electronic device having a trapping layer in contact with a semiconductive layer
08/15/1989US4856860 Integrated all-optical switching devices
08/15/1989CA1258540A1 Semiconductor optoelectronic switching device
08/08/1989US4855243 Neurological and biological molecular electro-optical devices and methods
08/08/1989US4854676 Bistable optical devices
08/08/1989CA1258313A1 Molecular electro-optical transistor and switch
07/1989
07/26/1989EP0325374A2 Optical communication by injection-locking to a signal which modulates an optical carrier
07/19/1989EP0324434A2 Method of activating a nonlinear optical element having electrodes on two side surfaces of nonlinear medium through insulating layers
07/05/1989EP0323074A2 Tri-state optical device
07/05/1989EP0323073A2 Wavelength conversion using self electrooptic effect devices
06/1989
06/27/1989US4843586 Distributed sampling of electrical and optical signals using coded switched electrode travelling wave modulators
06/27/1989US4842370 Optical spatial logic arrangement
06/15/1989WO1989005472A1 Optical device
06/14/1989EP0320305A1 Optical device
05/1989
05/30/1989US4835779 Method and apparatus for the operation of a distributed feedback laser
05/30/1989US4834511 Optical resonant assembly
05/24/1989EP0317347A2 An optical semiconductor device
05/23/1989US4833511 Phototransistor device
05/16/1989US4830472 Processing unit to perform operation of images
05/10/1989EP0315298A1 Optical logic device
05/09/1989US4829357 PNPN thyristor
04/1989
04/25/1989US4825442 Planar optical logic
04/25/1989US4824192 Optical processing
04/18/1989US4822992 Optical device
04/18/1989US4822147 Contrast enhancement of optical images with nonlinear media
04/04/1989US4819048 Optoelectronic bistable apparatus
04/04/1989US4818867 Optical information processing device using optical shutter elements
03/1989
03/21/1989USRE32893 Nonlinear and bistable optical device
03/14/1989US4812776 System for amplifying and shaping optical pulses
03/14/1989US4812767 For controlling a light intensity of a light beam
03/14/1989US4812682 Simultaneous all-optical logical operations using the third order nonlinear optical effect and a single waveguide
03/08/1989EP0305430A1 Optical device with a non reciprocal polarization rotator
03/07/1989US4811258 Digital optical interaction gate
03/07/1989US4810050 Optical inverter and logic devices using same with buffer limited electrical interface
02/1989
02/28/1989US4809204 Optical digital matrix multiplication apparatus
02/22/1989EP0304043A2 Optical switch array provided with a mask having openings of a predetermined pattern and shutters corresponding to the pattern
02/21/1989US4806997 Double heterostructure optoelectronic switch
02/14/1989US4804930 Molecular electro-optical transistor and switch
02/01/1989EP0301807A2 A method of controlling an optical PNPN thyristor
02/01/1989EP0301709A2 Signal processing method based on wave effects
01/1989
01/31/1989US4802175 Opto-electric logic elements
01/26/1989WO1989000714A1 Switch matrix with non-linear optical elements and process for manufacturing it
01/24/1989US4800519 Optical data processing systems and methods for matrix inversion, multiplication, and addition
01/24/1989US4800262 Tri-state optical device with quantum well absorption
01/10/1989US4797843 Parallel optical arithmetic/logic unit
01/10/1989CA1248381A1 Selection and application of highly nonlinear optical media
01/03/1989US4795241 Device and method for providing optical bistability with free carrier recombination centers introduced into an optical guide surrounding semiconductor layer portion
12/1988
12/13/1988US4790634 Bistable liquid crystal in a fabry-perot etalon
12/01/1988WO1988008553A3 Symmetrical optical device
11/1988
11/17/1988EP0290595A1 Cell surface antigen detection method.
11/15/1988US4784472 Optical control system and method
11/09/1988EP0290191A2 Method for the operation of a distributed feedback laser
11/03/1988WO1988008554A1 Optical device
11/03/1988WO1988008553A2 Symmetrical optical device
11/02/1988EP0289275A1 Sampling of signals using travelling wave modulators
11/01/1988US4782223 Optically bistable photodiode device with voltage control circuitry to change photodiode light absorption
10/1988
10/18/1988US4779235 Parallel operation optical processor unit
10/11/1988US4776658 Fiber optic modulator
09/1988
09/29/1988DE3809440A1 Photosensitive semiconductor component for laser oscillation control
09/21/1988EP0282794A2 Parallel optical arithmetic/logic unit
09/21/1988EP0282558A1 Bistable optical device
09/14/1988EP0281772A1 A light modulator based on a multilayer non-linear fabry-perot interference filter
09/07/1988WO1988006745A1 Optical device with a non reciprocal polarization rotator
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