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US20150253470 REFLECTIVE COLOR DISPLAY BASED ON TUNABLE SUB-WAVELENGTH HIGH CONTRAST GRATINGS  
A sub-pixel unit for a reflective display includes a color filter including a tunable high contrast grating. The tunable high contrast grating reflects light within a first range of wavelengths,...
US20110198447 Actuation system for mobile elements with dynamically compensated and opposite relative motions  
An actuation system for at least two mobile elements with dynamically compensated and opposite relative motions, without disturbance of the elements fixed in the same rigid structure as it, and...
US20140308047 OPTIMUM MODULATOR BIAS SYSTEMS AND METHODS IN COHERENT OPTICAL TRANSMITTERS  
A modulator bias selection method, a coherent optical transmitter, and optical modulator solve the problem of generating a correct constellation using the bias points with the minimum phase...
US20090323164 OPTICAL MODULATION DEVICE AND OPTICAL SEMICONDUCTOR DEVICE  
An optical modulation device includes: an optical splitter for splitting input light into a first input beam and a second input beam; an optical intensity modulator for modulating the intensity of...
US20120134005 OCCASIONAL CALIBRATION PHASE-DIFFERENCE MODULATION FOR SAGNAC INTERFEROMETER  
An occasional calibration waveform is used to, first, make an interferometer sensitive to small changes in Sagnac phase difference due to rotating the gyroscope (this is commonly referred to as...
US20100315621 PHASE MODULATOR, PHASE MODULATOR ASSEMBLY, AND PHOTOSENSOR  
The present invention provides a photosensor that uses a phase modulation technique for optical detection and conducts a highly accurate measurement. The photosensor uses a phase change difference...
US20150062689 DISTRIBUTED CMOS DRIVER WITH ENHANCED DRIVE VOLTAGE FOR SILICON OPTICAL PUSH-PULL MACH-ZEHNDER MODULATORS  
Disclosed are structures and methods for CMOS drivers that drive silicon optical push-pull Mach-Zehnder modulators (MZMs) with twice the drive voltage per interferometer arm as with prior art designs.
US20090086303 MULTILEVEL OPTICAL PHASE MODULATOR  
To take out monitor light unaffected by a multilevel optical phase-modulated component. For the purpose, a phase-shift unit that controls phases of plural (n, n is an integral number equal to or...
US20110216390 SPECKLE REDUCTION  
Speckle reduction apparatus includes a radiation path and a mask arranged within the radiation path. The mask includes an array of electrically controllable cells configured to form a pattern on...
US20080316575 Aberration correction of optical traps  
A method and system for correcting aberrations in a beam of light including correcting for effects from an undiffracted portion of an input beam. The method and system includes (1) a component for...
US20050036193 Interferometric system for selection of optical beam spectral components  
The invention relates to an interferometric system (2) for selection of spectral components of an incident optical beam as a function of their wavelength, comprising: means (42) of transforming...
US20080158643 DUOBINARY MODULATION WITH A LUMPED-ELEMENT MACH-ZEHNDER DEVICE  
Duobinary and NRZ modulation of an X-Gb/s optical signal is achieved with a lumped element InP Mach-Zehnder device configured to operate at X/k-Gb/s where k>1 and arranged in a push-pull...
US20090290156 Spatial light interference microscopy and fourier transform light scattering for cell and tissue characterization  
Methods and apparatus for rendering quantitative phase maps across and through transparent samples. A broadband source is employed in conjunction with an objective, Fourier optics, and a...
US20090257106 RETARDER-BASED DESPECKLE DEVICE FOR LASER ILLUMINATION SYSTEMS  
A method and apparatus for reducing speckle in a laser illumination system uses a despeckle device including an optical retarder providing an odd integer multiple of substantially half-wave...
US20150094572 MODULATOR ARRAYS, AND MODULATION DEVICES AND MEDICAL IMAGING APPARATUSES INCLUDING THE SAME  
The modulator array includes a first optical modulator, which changes a shape a wavefront of an incident light into first wavefronts to modulate the incident light which passes through the first...
US20140341498 STATIC ELECTRO-OPTICAL PHASE SHIFTER HAVING A DUAL PIN JUNCTION  
A semiconductor electro-optical phase shifter may include a first optical action zone having a minimum doping level, a first lateral zone and a central zone flanking the first optical action zone...
US20090141333 Light modulation device  
A light modulation device capable of stabilizing a phase set in phase modulation processing and improving optical communication quality. A phase modulator is provided for each of plural branched...
US20140341499 DUAL STATIC ELECTRO-OPTICAL PHASE SHIFTER HAVING TWO CONTROL TERMINALS  
A semiconductor electro-optical phase shifter comprises a central zone (I1, I2) having a minimum doping level; first and second lateral zones (N+, P+) flanking the central zone along a first axis,...
US20100315694 Compact display system  
A display system is based on a linear array phase modulator and a phase edge discriminator optical system.
US20080310000 Quantum Coherent Systems and Operations  
Nonlinear elements can efficiently implement quantum information processing systems such as controlled phase shifters, non-absorbing detectors including parity detectors, quantum subspace...
US20150159990 VARIABLE-FREQUENCY OPTICAL COMBS, HETERODYNE SENSOR, AND PROCESS FOR PERFORMING SPECTROSCOPY  
A comb source includes a continuous wave frequency source to provide a continuous wave radiation; a first modulator in optical communication with the continuous wave frequency source; a second...
US20080030838 Light Phase Modulator  
The invention relates to a light phase modulator, which is based on a multi-gate transistor.
US20090244685 Optical modulator and controlling method and apparatus thereof  
The optical modulator branches an input light into (2×N) lights in an optical branching section, and then phase modulates each of the branched lights in (2×N) phase modulating sections, and...
US20090009848 ENHANCED OPTICAL READOUT SCHEME FOR A THERMAL IMAGER EMPLOYING A RECONFIGURABLE SPATIAL LIGHT MODULATOR  
An apparatus includes a reconfigurable spatial light modulator capable of spatially modulating an incident wavefront responsive to an image formed on the modulator. A light source is configured to...
US20120105858 Spatial Light Interference Microscopy and Fourier Transform Light Scattering for Cell and Tissue Characterization  
Methods and apparatus for rendering quantitative phase maps across and through transparent samples. A broadband source is employed in conjunction with an objective, Fourier optics, and a...
US20090284822 PHASE CALIBRATION METHOD AND DEVICE USING THE SAME AND DISTANCE MEASURING EQUIPMENT  
The present invention provides a phase calibration method, device, and equipment. The method comprises the steps of: a first light beam emitter generating a first light-wave into a target object,...
US20130342887 LIGHT MODULATOR HAVING A SWITCHABLE VOLUME GRATING  
Spatial light modulator configured as a periodic structure of polymer grating layers arranged essentially at equal distances and intermediate spaces to form a periodic grating structure. The...
US20100177373 TUNABLE ZERO-CHIRP PULSE GENERATOR USING PLASMA DISPERSION PHASE MODULATOR  
An optical pulse generator comprising a phase modulator, wherein the phase modulator is configured to phase modulate and intensity modulate a continuous wave (CW) light signal in accordance with a...
US20130070326 Polarization-Independent LCOS Device  
Described herein is an optical phase modulator (20) including a liquid crystal element (22), disposed between a pair of opposing electrodes (24) and (26). The electrodes (24, 26) are electrically...
US20120120478 ELECTRO-OPTICAL DEVICES BASED ON THE VARIATION IN THE INDEX OR ABSORPTION IN THE ISB TRANSITIONS  
Electro-optical components are disclosed having intersubband transitions by quantum confinement between two Group III nitride elements, typically by means of GaN/AlN. Related devices or systems...
US20130258293 Phase Modulation Module and Projector Comprising the Same  
An optical phase modulation module and a projector comprising the same are provided. The optical phase modulation module comprises a transparent thin film with an electro-optic effect, a plurality...
US20120154894 Picosecond optical switching using RF non-linear transmission lines  
Optical phase modulators are disposed in separate arms of an optical interferometer for forming short optical pulses. The optical phase modulators are driven by signals from an electrical...
US20130033737 Method of Making a Fiber Optic Gyroscope  
Methods of attaching an optical line to a phase modulator in a fiber optic gyroscope. The methods include positioning at least one end of the optical line relative to a side of the phase...
US20060291031 Arrangement of aperture diaphragms and/or filters, with changeable characteristics for optical devices  
An arrangement making use of two-dimensional arrays consisting of individually controllable elements, for forming aperture diaphragms in the beam paths of optical devices. In an arrangement of...
US20150116812 ABERRATION CORRECTION DEVICE AND LASER MICROSCOPE  
An aberration correction device (3) corrects wave front aberration arising in an optical system that includes an object lens (4) disposed in an optical path for light beams output by a coherent...
US20080278794 Method for Optical Control of Microwave Phase  
A method and system for modifying the detected phase of a signal by driving a photodetector into saturation. This system and method differs from current manual and electrical microwave phase...
US20080198432 HOLOGRAM REPRODUCING APPARATUS, HOLOGRAM REPRODUCING METHOD, AND PHASE MODULATING ELEMENT  
A hologram reproducing apparatus includes a first reference light path leading laser light from a laser light source so that a hologram recording medium is irradiated with first reference light; a...
US20090168142 Phase Plate for Electron Microscope and Method for Manufacturing Same  
A phase plate for an electron microscope in which a portion of a magnetic thin-wire ring or a magnetic thin-wire rod (15) spans an opening of a support member (14) having the opening, the magnetic...
US20090103924 FOURTH HARMONIC GENERATING SYSTEM USING OPTICAL DOUBLE SIDE-BAND SUPPRESSED CARRIER MODULATOR  
The present invention is to provide an optical modulating system for generating a signal of a frequency (f0+2fm) and a signal of a frequency (f0−2fm) and suppressing a signal of a frequency (f0)...
US20110109953 REDUCING CROSS-PHASE MODULATION USING GROUP DELAY  
According to particular embodiments, reducing cross-phase modulation includes sending instructions to a phase modulation array comprising channel pixel sets that modulate phases of channels. The...
US20130335795 SPATIAL LIGHT MODULATOR AND HOLOGRAPHIC 3D IMAGE DISPLAY INCLUDING THE SAME  
Provided is a complex spatial light modulator and a holographic 3D image display including the complex spatial light modulator. The complex spatial light modulator includes a spatial light...
US20150029575 OPTICAL PULSE-GENERATOR AND OPTICAL PULSE-GENERATING METHOD  
Provided is an optical pulse-generator and an optical pulse-generating method which are capable of generating an optical pulse train with an arbitrary pattern. An optical pulse-generator 1...
US20110149370 Photonic Technique For Generating Arbitrary Waveforms  
In a radio frequency (RF)-photonic arbitrary waveform generator (AWG), an optical carrier signal is phase-modulated using an arbitrary waveform optical phase generator (AWPOG), which may include,...
US20080055700 Laser Source Using Coherent Beam Recombination  
A laser source comprises N incident laser beams, N equal to two at least, N single-mode spatial beam propagation media, each forming a propagation channel (gi) for one laser beam, a system for...
US20140268290 SYSTEM AND METHOD FOR INCREASING COHERENCE LENGTH IN LIDAR SYSTEMS  
Various implementations of the invention compensate for “phase wandering” in tunable laser sources. Phase wandering may negatively impact a performance of a lidar system that employ such laser...
US20140233084 PHASE MODULATION APPARATUS  
A phase modulation apparatus has a light source outputting continuous light, two phase modulators, and an intensity modulator. The phase modulation apparatus is provided with an RZ phase...
US20130194651 Full Color Phase-Only Spatial Light Modulator for Holographic Video Display System  
Full-color phase-only spatial light modulators (SLM) are proposed for modulating phase of the light. Proposed SLMs are low-power electrically actuated surface micromachined MEMS device with high...
US20070183019 Optical devices with cascaded liquid crystal elements  
An optical beam processing device with two serially disposed birefringent elements, each element having its own direction of orientation. At least one element is pixelated with electrodes...
US20130155482 OPTICAL MODULATION DEVICE AND OPTICAL MODULATION METHOD  
In an optical modulation device, a first drive signal and a first bias signal are applied to a phase modulation unit, a second drive signal and a second bias signal are applied to a phase...
US20090257028 PROJECTION TYPE DISPLAY DEVICE  
A projection type display device includes: a light emitting unit that includes at least one light source for emitting a coherent light. An image light generating unit modulates the light emitted...
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