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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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7606501 |
System and method for generating optical return-to-zero signals with alternating bi-phase shift and frequency chirp
A system and method for generating an optical return-to-zero signal with frequency chirp. The system includes a bit separator configured to receive an electrical non-return-to-zero signal and...
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7599628 |
Method for modulating an optical signal and optical transmitter
A method for modulating an optical signal includes the following steps: modulating the intensity of the optical signal with a nonreturn-to-zero bit signal, and modulating the phase of the optical...
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7580183 |
Light generator, optical amplifier, and optical communication system
In an optical amplifier according to the present invention, a change signal from a change signal source is fed into a light source or a drive circuit. The wavelength of light outputted from the...
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7577367 |
Optical communication using duobinary modulation
Optical techniques, devices and systems for combining duobinary modulation and optical subcarrier multiplexing in optical communication applications. An analog mixer is used to mix a duobinary...
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7570184 |
Optical analog/digital conversion method and apparatus thereof
A high speed optical analog/digital conversion process with a simple configuration, in which an optical-pulse branching delay multiplexer generates as many duplicates of each optical pulse as the...
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7561810 |
Optical communication apparatus
An optical communication apparatus for controlling the operating point of an optical modulation unit appropriately. An adding unit adds a bias voltage and a pilot signal. An optical modulation unit...
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7561320 |
Modulation of electromagnetic radiation with electrically controllable composite material
An apparatus and related methods for modulating an electromagnetic radiation beam are described. A composite material is positioned in the path of the radiation beam, the composite material...
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7551808 |
Optical signal noise suppressor and optical signal noise suppressing method
The present invention provides an optical signal noise suppressor and an optical signal noise suppressing method that can decrease noise components to be superimposed on signal light. The optical...
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7551340 |
Optical element, optical device, mobile information terminal, and manufacturing method
A microlouver has, as a basic unit, a light-controlling layer in which a light-absorbing layer and a transparent layer are laminated together, and a plurality of basic units L and S comprising a...
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7545559 |
Display method applied to electrophoretic display
A display method applied to an electrophoretic display having pixels includes steps as follows. Firstly, a first frame is displayed on the pixels at a first time. Then the difference between the...
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7525715 |
Reflective mirror assembly
A reflective mirror assembly includes an electrochromic reflective element providing a rearward field of view to a driver of a vehicle equipped with the reflective mirror assembly. The...
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7518775 |
Method and system for packaging a MEMS device
A MEMS-based display device is described, wherein an array of interferometric modulators are configured to reflect light through a transparent substrate. The transparent substrate is sealed to a...
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7515324 |
System and method for resolving reset conflicts in a phased-reset spatial light modulator system
A system for, and method of resolving reset conflicts in a phased-reset SLM system and a projection visual display system incorporating the system or the method. In one embodiment, the system...
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7515260 |
Chemometric analyzer with a spatial radiation modulator having a plurality of radiation filters
A chemometric analyzer for analyzing a plurality of analytes. The analyzer disperses radiation by wavelength along an encoding axis. The analyzer includes a spatial radiation modulator having a...
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7499207 |
Beam shaping prior to harmonic generation for increased stability of laser beam shaping post harmonic generation with integrated automatic displacement and thermal beam drift compensation
A harmonic generation/beam shaping system to generate a shaped beam having a harmonic relationship with a beam generated by a laser, including a first harmonic generation element and a second...
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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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7495815 |
Electro-optical modulator
An electro-optical modulator device and method are provided. The device comprises a light modulator unit having a first Cathode for exposing to input light; and an electric field source configured...
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7489433 |
Method and apparatus for making and using 1D and 2D magnetic actuators
A light beam scanner may include a polymeric material and a soft magnetic material.
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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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7465414 |
Photochromic article
Describes an optical article, e.g., an ophthalmic photochromic article, such as a lens, in which the article includes: (1) a transparent substrate, such as a thermoset or thermoplastic plastic...
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7463491 |
Wiring board and a semiconductor device using the same
A wiring board includes a core composite layer having first and second core boards and an optical transmission portion; first electrodes disposed on one part of the core composite layer, being...
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7463397 |
Electro-optic modulator
A beam modulator ( 14 ) for modulating a beam ( 20 ) includes a modulator element ( 26 ) and a housing assembly ( 24 ). The modulator element ( 26 ) is positioned in the path of the beam ( 20 )....
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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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7433564 |
Optical device for optical communication
An optical phase modulator made of lithium niobate or the like phase-modulates the output light of a single-wavelength laser light source 20 that emits CW light, and the phase-modulated light is...
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7431461 |
Light propagation characteristic control apparatus, optical display apparatus, light propagation characteristic control program, optical display apparatus control program, light propagation characteristic control method and optical display apparatus control method
Exemplary embodiments of the invention provide a light propagation characteristic control apparatus which realizes to extend the light-intensity dynamic range and the number of levels, and is...
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7428096 |
Optical pulse compressor, optical function generator, optical pulse compression method, and optical function generation method
A small-sized, high-functionality optical pulse compressor capable of generating a low-power, high-repetition-frequency ultrashort pulse train used for ultrafast optical communication and...
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7421171 |
Efficient terahertz sources by optical rectification in photonic crystals and metamaterials exploiting tailored transverse dispersion relations
A system and a method for generating terahertz (THz) radiation are provided. The system includes a photonic crystal structure comprising at least one nonlinear material that enables optical...
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7414769 |
Reconfigurable spatial light modulators
This invention relates to reconfigurable spatial light modulators (SLM) incorporating a scatter plate. Computer generated diffraction patterns or holograms may be loaded on the (SLM) either as a...
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7414767 |
Semiconductor optical device and semiconductor optical package using the same
A semiconductor optical device, which includes a semiconductor substrate, an electro-absorption modulator, and at least one optical device is monolithically integrated on the semiconductor...
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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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7403623 |
High-rate quantum key distribution scheme relying on continuously phase and amplitude-modulated coherent light pulses
One aspect of the present invention is related to a quantum cryptographic scheme comprising at least one sending unit including a physical means of encoding and distributing a raw key in the...
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7394587 |
Apparatus having a photonic crystal
An apparatus, including a substrate, having an internal surface where at least a portion of the internal surface has a smoothly varying curvature in three orthogonal directions. The apparatus also...
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7379223 |
Modulator control system
An optical communications system comprising: an optical input and an output, a source of input signals in an asymmetric format and having a duty cycle, a modulator for modulating the input signals,...
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7376291 |
Free space optical isolator with stacked parallel polarizers
The present invention provides low cost methods and apparatuses for filtering out polarized light reflections in a free space optical isolator. Multiple polarizers having relatively poor extinction...
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7369290 |
Modulator bias control
Approaches to bias control are disclosed for an optical modulator that modulates an optical carrier with a data input signal. In one embodiment an electrical bias input signal provided to the...
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7369289 |
Optical modulation device and image display apparatus using the same
An optical modulation device is disclosed which can suppress production of a cause of degradation such as a void or hillock on a light illumination surface thereof and can be incorporated in an...
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7330253 |
Method and apparatus for radiation analysis and encoder
Method and apparatus for analyzing radiation using analyzers and encoders employing the spatial modulation of radiation dispersed by wavelength or imaged along a line.
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7324262 |
Optical shutter and light scanning apparatus employing the same
An optical shutter includes a cell having a transparent panel and a hydrophobic transparent insulation panel which are arranged to face each other, a transparent electrode formed on an outer...
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7321454 |
Apparatus for modulating one or both of spectral phase and amplitude of an optical signal
The invention includes a method and apparatus for modulating one or both of spectral phase and amplitude of a received optical signal. The apparatus includes a spatial dispersion mechanism for...
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7310177 |
Electro-optic reflective element assembly
A rearview mirror assembly for a vehicle includes an electro-optic reflective element with an overhang region at an edge region of a first substrate that extends beyond a corresponding edge region...
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7304781 |
Ultra broadband mirror using subwavelength grating
A sub-wavelength grating structure that has a very broad reflection spectrum and very high reflectivity comprising segments made of high refractive index material disposed on a layer of low...
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7289276 |
Illumination optical system, exposure device using the illumination optical system, and exposure method
In an illumination optical system constituted to uniformize the intensity distribution of illumination light by use of an optical integrator, the overall length thereof is shortened. The...
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7289256 |
Electrical characterization of interferometric modulators
Disclosed herein are methods and systems for testing the electrical characteristics of reflective displays, including interferometric modulator displays. In one embodiment, a controlled voltage is...
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7261843 |
Photochromic optical article
Describes a photochromic article, e.g., an ophthalmic photochromic plastic article, such as a lens, in which the article includes (1) a rigid substrate, e.g., a transparent substrate such as a...
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7256920 |
Electro-optic modulator
A modulator circuit ( 28 ) for directing a voltage across a modulator element ( 26 ) to modulate a beam ( 20 ) includes a first inductor L 1 that is electrically connected in parallel to the...
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7242508 |
Infrared modulator for spectrometer
The invention relates to an infrared modulator for spectrometer. It comprises a light source ( 1 ), a beam splitter ( 2 ) for splitting the light from the source into two beams, a first plane...
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7236287 |
Pockels cell
The invention relates to a pockels cell comprising two spaced-apart cubical RTP crystals that have a square cross section, are located one behind another, and are oriented towards each other so as...
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7229576 |
Substituted phenanthropyrans
The present invention relates to specific photochromic phenanthropyrans as well as to their use in synthetic resin materials of all types, especially for ophthalmic purposes. In particular, the...
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