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7619808 |
Light wave front construction
A method for producing a 3D image includes providing a pixel-by-pixel map over a preselected aperture of relative phases for coherent light scattered by or transmitted through a desired scene. The...
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7612930 |
Optical processing
To operate an optical device comprising an SLM with a two-dimensional array of controllable phase-modulating elements groups of individual phase-modulating elements are delineated, and control data...
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7576907 |
Phase and amplitude light pulse shaping using a one-dimensional phase mask
Simultaneous amplitude and phase control of ultrafast laser pulses using a single, linear (one-dimensional) liquid crystal spatial light modulator is described. Amplitude shaping is accomplished by...
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7555061 |
Optical communication device
An optical sender is disclosed that operates in a Differential Quadrature Phase Shift Keying modulation scheme for high speed optical transmission and is capable of performing logical calculations...
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7551342 |
Optical frequency comb generator and optical modulator
A resonance system ( 14, 15 ) is formed by a light incident side reflection mirror and a light exiting side reflecting mirror, arranged parallel to each other. The light incident on an incident...
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7532384 |
π-Phase shift device for light
A phase shifter includes at least one photonic crystal structure having alternating high and low index dielectric layers. At least two defect structures are positioned between said photonic crystal...
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7529392 |
Image processing system and medical examination apparatus for correlating features in medical images
An image processing system, for correlating shapes in multi-dimensional images including image data processor for estimating a similarity measure including estimating two image signals representing...
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7526210 |
Optical demodulating apparatus and method
An optical demodulator and accompanying method(s) that demodulates a DQPSK signal employing a single optical delay interferometer comprising a free-space Michelson interferometer having two optical...
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7511725 |
Apparatus and method for providing a three-dimensional moving image from a non-fixed pixel display
Embodiments of the invention provide a system and method for providing a three-dimensional moving image from a non-fixed pixel display. In one embodiment, a display having a plurality of pixels is...
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7499603 |
Range extended electrooptic modulator
Methods, systems, and devices are provided for an electrooptical modulator. One method embodiment includes receiving an optical input signal to an electrooptical modulator. A first voltage input is...
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7495816 |
Diffraction-based pulse shaping with a 2D optical modulator
Disclosed is a method including: (i) dispersing frequency components of an input EM waveform along a first direction with each frequency component spatially extended along a second direction...
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7483597 |
Optical modulator utilizing multi-level signaling
An optical modulator is formed to include a plurality of separate electrodes disposed along one arm, the electrodes having different lengths and driven with different signals to provide for...
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7483195 |
Optical substrate with modulated structure
There is provided an optical substrate. The optical substrate includes at least one surface. The at least one surface includes at least one optical structure having a shape and dimensions, wherein...
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7468828 |
Spot array generation using a MEMS light modulator
An optical system having a spatial light modulator (SLM), in which each pixel has an optical cavity and is adapted to: (i) change the intensity of a reflected beam by changing the size of the...
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7466488 |
Optical element producing method and optical element
A producing method of an optical element such as quarter-wave plate wherein preparing a first member which has a coefficient of elasticity of 1-4 (GPa) at normal temperature, setting the...
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7450745 |
Systems and methods for minimizing aberrating effects in imaging systems
An imaging system for reducing aberrations from an intervening medium, and an associated method of use are provided. The system may be an optical or task-based optical imaging system including...
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7450288 |
Optical modulation device, optical transmitter, and optical transmission equipment
In the bias stabilization control using average optical power of signal light, there is a case where a control algorithm (maximum control or minimum control) changes depending on the amplitude of...
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7446925 |
Micro-electromechanical light modulator with anamorphic optics
Micro-electromechanical light modulators are combined with anamorphic and contrast enhancing optical elements to form optical display engines. Linear MEMS arrays are suitable for the étendue of...
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7440642 |
Integrated optical modulator and method for manufacturing the same
An integrated optical modulator and method for manufacturing thereof are disclosed. The integrated optical modulator comprises a carrier wave band modulator using a double sideband modulation...
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7440158 |
Direct optical image projectors
An apparatus includes a reconfigurable spatial light modulator, a light source, and a transmission filter. The reconfigurable spatial light modulator is capable of producing spatially varying...
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7435939 |
Dynamic optical phase shifter compensator
A birefringent, electrically-controlled, wavelength selective, pixelated optical phase shifting device, in which the correct drive voltage for a desired phase shift through any pixel can be...
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7412173 |
Apparatus for generating optical carrier suppressed return-to-zero
An apparatus for generating a Carrier-Suppressed Return-to-Zero (CS-RZ) signal is disclosed. The apparatus includes a mixer, a Low Pass Filter (LPF), a driver amplifier and a single external...
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7400446 |
Confocal microscope
A confocal microscope uses fluorescent or reflected light obtained by irradiating a plurality of beam spots to a sample so as to observe the sample. The confocal microscope has a phase modulator...
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7400436 |
System for shifting at least one light spot
The invention relates to a system for shifting at least one light spot ( 903 ), said system comprising: —a phase-modulator ( 906 ) for generating, from an input light beam, a light beam which is...
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7397018 |
Amplitude and phase controlled adaptive optics system
An adaptive optics system is provided. The system includes a light source, a pair of deformable mirrors and a detection module. The light source is configured to provide an outgoing beam. The...
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7382522 |
Grooved substrate
Various embodiments of a grooved substrate having electrical conductors and an electro optical material are disclosed.
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7382512 |
Resistivity phase change material
Various devices and methods employing a resistive phase change material are disclosed.
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7349636 |
Optical phase and intensity modulation with improved transmitters
An apparatus for transmitting at least a digital optical signal with a simultaneous modulation of the amplitude and the phase, the said encoded optical signal having improved spectral efficiency...
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7336411 |
Spatial light modulator and display device
A spatial light modulator is disclosed that can be fabricated easily and is able to prevent degradation of a contrast ratio by suppressing a fringe effect. The spatial light modulator includes a...
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7319783 |
Methods for minimizing aberrating effects in imaging systems
A method for reducing optical distortion within an optical system employing adaptive optics, includes modifying phase of a wavefront of the optical system with a wavefront coding element. Image...
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7317845 |
Optical modulator having reduced bandwidth requirements and method of operation thereof
An optical modulator is overdriven to increase its nonlinearity and therefore improve its response as it pertains to differential phase shift keyed (DPSK) transmission and a method of operating the...
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7292384 |
Method and apparatus for providing a three-dimensional moving image display
Embodiments of the invention provide a system and method for providing a three-dimensional moving image display. In one embodiment, a display having a plurality of pixels is provided. In addition,...
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7286277 |
Polarization light modulator
Polarization light modulators are based on an interferometric design in which a polarizing beam splitter serves as a polarizer and analyzer. A polarization displacement device shifts orthogonally...
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7262902 |
High gain resonant modulator system and method
An optical resonant modulator includes an optical ring resonator and an optical loop that is coupled to the optical ring resonator by two couplers. The optical ring resonator can have a hybrid...
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7257330 |
Duobinary optical transmission apparatus using a semiconductor optical amplifier
Disclosed is a duobinary optical transmission apparatus using a semiconductor optical amplifier (SOA). The duobinary optical transmission apparatus includes a light source for generating a carrier...
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7242510 |
Aberration correction element, optical pickup, and information equipment
An aberration correction element is intended to correct an aberration. The aberration correction element is placed in a middle of an optical path between a light source and an optical element for...
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7227687 |
Complex spatial light modulator
One embodiment relates to a spatial light modulator (SLM) for modulating light incident thereon. The SLM includes a plurality of pixels, each pixel including a plurality of phase shift elements....
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7227679 |
Light irradiation apparatus, light irradiation method, crystallization apparatus, crystallization method, device, and light modulation element
A light irradiation apparatus includes a light modulation element which modulates a phase of an incident light beam to obtain a V-shaped light intensity distribution having a bottom portion of a...
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7224506 |
Single side band modulation device
A single side band modulation device includes a first Mach Zehnder interferometer and a second Mach Zehnder interferometer. The first Mach Zehnder interferometer includes at least two output arms,...
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7215383 |
Coherent light despeckling
A display device or a receiver device for use with coherent light. A controller applies phase shift values to a multi-region phase array at a frequency sufficiently higher than the flicker fusion...
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7212326 |
Optical external modulator
An optical external modulator includes an optical waveguide having a first interferometer section and a second interferometer section formed on an electro-optic substrate. An electrode structure...
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7209279 |
Phase modulating apparatus and phase modulating method
An adder unit ( 60 e ) reads a desired CGH pattern from a pattern memory unit ( 60 a ) and a phase distortion correction pattern from a distortion-correction pattern memory unit ( 60 d ) and adds...
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7206114 |
Plasmon-photon coupled optical devices
The present invention is directed to optical devices. More specifically, the disclosed devices include a film defining a periodic array of surface elements so as to give rise to surface plasmon...
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7193765 |
Reduction of speckle and interference patterns for laser projectors
The invention provides a system and method for reducing laser speckle and interference patterns in a laser projector display when using a laser projector having a spatial light modulator (SLM) with...
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7175087 |
Method of analyzing astigmatic difference and method of correcting the spot diameters for an optical device and spot analysis system
A method of analyzing the astigmatic difference of an optical device for analyzing the astigmatism inherent to the optical device by utilizing a condensation performance analysis system while...
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7173749 |
Opto-electronic feedback for stabilizing oscillators
This application describes use of an opto-electronic feedback in oscillators to suppress phase noise based on the high Q factor of the opto-electronic feedback.
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7167293 |
Silicon-based electro-optic phase modulator with reduced residual amplitude modulation
An arrangement for removing unwanted amplitude modulation from the output of an electro-optic phase modulator (formed within a silicon-on-insulator (SOI) system) includes resonant filters that are...
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7164521 |
Aberration compensating device and optical head device
An aberration compensating device for compensating aberration of a laser beam emitted from a light source and converged on an optical recording disk through an objective lens includes a liquid...
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7145715 |
Multiple pump parametric apparatus having no idler broadening
A multi-pump phase modulator apparatus and operating method uses only one phase modulator to eliminate SBS without degrading idler(s). The single phase modulator phase modulates multiple pump...
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7145710 |
Optical processing
To operate an optical device comprising an SLM with a two-dimensional array of controllable phase-modulating elements groups of individual phase-modulating elements are delineated, and control data...
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