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7453625 Method of producing domain inversion parts and optical devices  
A comb electrode 3 is provided on a first main face 2 a and a uniform electrode 4 is provided on a second main face 2 b of a substrate made of a ferroelectric single crystal of a single...
7437083 Wavelength converter  
A wavelength converter for binary optical signals includes an interferometer structure ( 110 ) for generating an output signal by modulating a received local signal (LS) according to the modulation...
7428359 All-optical logic gates using nonlinear elements—claim set IV  
An all-optical logic gates comprises a nonlinear element such as an optical resonator configured to receive optical input signals, at least one of which is amplitude-modulated to include data. The...
7423802 Illumination module  
An illumination module may provide light in a plurality of colors including Red-Green-Blue (RGB) light and/or white light. The light from the illumination module may be directed to a 3LCD system, a...
7413430 Crystal base plate and pressing device  
The upper block 12 contacts the bearing block 20 , and the bearing block 20 is coupled to the upper plate 21 . The upper block 12 has a protruding part 22 on the upper surface that is...
7403327 Wavelength conversion element having multi-gratings and light generating apparatus using said element, and wavelength conversion element having cylindrical ferroelectric single crystals and light generating apparatus using said element  
A wavelength conversion element having multi-gratings free from damage propagation and a light generating apparatus using it, and a wavelength conversion element having multi-gratings to make a...
7397598 Light source unit and light irradiation unit  
In nonlinear optical crystal 183 D, each step of wavelength conversion can be performed using another fundamental wave that is output from light output unit 161 2 , without using the fundamental...
7396476 Method for reducing harmonic distortion in comb drive devices  
Methods of fabricating comb drive devices utilizing one or more sacrificial etch-buffers are disclosed. An illustrative fabrication method may include the steps of etching a pattern onto a wafer...
7394588 Wavelength converter structure and method for preparing the same  
A wavelength converter structure according to one aspect of the present invention comprises a ferroelectric substrate, a ridge positioned on the ferroelectric substrate, a plurality of first...
7388709 Multiple path infrared energy source  
A multiple path light source has a first and second laser source that generate low power continuous wave laser beam at wavelength λ1 and λ2 respectively. A pump laser source generates a high...
7385752 Disposal of residual radiation from a frequency-conversion process  
A frequency-conversion arrangement including one or more optically nonlinear crystals is located in an enclosure. Radiation residual from the frequency conversion is directed into an optical fiber...
7382523 Beam-guiding and/or frequency-converting optical system and method for producing the same  
The present invention relates to a beam-guiding and/or frequency-converting optical system as well as to a method of manufacturing same, wherein a beam-emitting optoelectronic component ( 1 ),...
7379677 Method of wavelength conversion and wavelength converter  
The wavelength converter comprises (1) an optical multiplexer for multiplexing an amplitude-modulated first light and reference light, which is continuous light having a wavelength different from...
7378636 Method of evaluating non-linear optical crystal and device therefor and wavelength conversion method and device therefor  
A method of evaluating a non-linear optical crystal used for non-linear wavelength conversion of laser beam which enables the non-linear optical crystal to be evaluated before the crystal is...
7372621 Wavelength converting devices  
A wavelength converting device 1 has a ferroelectric layer 6 made of a ferroelectric material. The ferroelectric layer has a wavelength converting portion A having a ridge-type optical...
7339720 Frequency multiplied optical electronic oscillator  
The present invention is directed to systems and methods which provide a widely tunable, low-noise, synthesized microwave source with an OEO oscillator.
7330299 Optical amplifying arrangement using carbon nanotubes  
A method of using a carbon nanotube assembly comprising: arranging a signal responsive array of nanotubes on a substrate, and heterodyning a signal processed by the array of nanotubes on the...
7327768 Wavelength conversion module  
A wavelength conversion module according to the present invention includes an external resonator, a semiconductor laser module and a wavelength conversion device for converting a wavelength of...
7310183 Diffractive outcoupler for second harmonic generation  
A diffractive outcoupler, for use in a cavity of a laser, includes a surface phase grating for receiving radiation from a laser source and has rectangular grooves with a depth D, a first reflector...
7291293 Vapor deposited electro-optic films self-assembled through hydrogen bonding  
The present invention introduces a novel route toward microstructural orientation into organic films, using multiple hydrogen-bonding to self-assemble chromophore molecules into electro-optic films...
7289261 Design of quasi-phasematched optical frequency converters  
Quasi-phasematching design to provide an approximation to a desired spectral amplitude response A(f) is provided. An initial phase response φ(f) corresponding to A(f) is generated. Preferably, d 2...
7286282 Wavelength conversion method, wavelength conversion laser, and laser beam machining apparatus  
A fundamental laser beam is wavelength converted through nonlinear optical crystals by traveling in one direction, sequentially through two nonlinear optical crystals arranged in series. A...
7277220 Ultraviolet laser apparatus and exposure apparatus using same  
A laser apparatus including a laser generating portion that generates pulse light having a single wavelength within a range from an infrared band to a visible band. An optical amplifier is...
7265897 Amplitude modulation for quasi-phasematched nonlinear optical frequency converters  
Quasi-phasematching design to provide an approximation to a desired spectral amplitude response A(f) is provided. An initial phase response φ(f) corresponding to A(f) is generated. Preferably, d 2...
7261778 Method of producing quasi phase-matching crystal and quasi phase-matching crystal  
Rectangular protruding parts 2 are formed on the surface of one side of a quartz crystal substrate 1 ; these protruding parts 2 are formed as aggregates of rectangular protruding parts 4 of...
7259903 Optical switching arrangement using carbon nanotubes  
An optical antenna collects, modifies and emits energy at light wavelengths. Linear conductors sized to correspond to the light wavelengths are used. Nonlinear junctions of small dimension are used...
7209282 Cascaded difference frequency generator using resonant structure  
Provided is a resonant cascaded difference frequency generator that is capable of improving the conversion efficiency of the second-order nonlinear optical phenomena by resonating the second...
7205021 Optical antenna array for harmonic generation, mixing and signal amplification  
An optical antenna collects, modifies and emits energy at light wavelengths. Linear conductors sized to correspond to the light wavelengths are used. Nonlinear junctions of small dimension are used...
7198738 Cesium-lithium-borate crystal and its application to frequency conversion of laser light  
The present invention provides a cesium-lithium-borate crystal, which can be used as a high-performance wavelength converting crystal, having a chemical composition expressed as CsLiB6O10, and...
7184616 Method and apparatus for fiber Bragg grating production  
Fiber Bragg writing devices comprising solid state lasers are provided. The solid state lasers comprise optical parametric oscillators and emit moderate peak-power output beams at wavelengths which...
7173755 High-efficiency multiple-pass nonlinear optical wavelength converter with an electro-optic phase compensator and amplitude modulator  
A high-efficiency multiple-pass nonlinear wavelength converter and amplitude modulator employs a variable dispersion element between adjacent passes of a nonlinear wavelength conversion process in...
7158284 Apparatus and methods of using second harmonic generation as a non-invasive optical probe for interface properties in layered structures  
A method for non-invasively probing at least one interface property in a layered structure having at least one interface. In one embodiment, the method includes the steps of exposing the layered...
7151257 Tailoring domain engineered structures in ferroelectric materials  
Scanning probe apparatus, comprising: a) a tip-electrode which is coupled to be maintained at a first potential; b) a counter-electrode which is positioned in proximity with the tip...
7132994 Optical antenna array for harmonic generation, mixing and signal amplification  
An optical antenna collects, modifies and emits energy at light wavelengths. Linear conductors sized to correspond to the light wavelengths are used. Nonlinear junctions of small dimension are used...
7126745 Method of irradiating ultraviolet light onto an object  
A method of irradiating ultraviolet light onto an object. The method includes generating pulse light having a single wavelength within a range from 1.51 μm to 1.59 μm from a laser generating...
7113325 Wavelength conversion method with improved conversion efficiency  
A nonlinear optical conversion device includes a nonlinear crystal having entrance and exit surfaces allowing input and output laser beams to propagate in the phase-matching plane for a desired...
7106496 Element for wavelength conversion and/or optical computing  
When forming a periodically-poled structure on a nonlinear optical crystal 1 that permits wavelength conversion and/or optical computing, the group velocity matching conditions are determined to...
7102810 Method for extra-high speed transformation of time signal into two-dimensional space signal  
A signal light pulse to be converted into a two-dimensional space signal and a reference ultra-short light pulse are directed to a dispersion device, a second-harmonic is generated by introducing a...
7099073 Optical frequency-converters based on group III-nitrides  
An apparatus includes an optical waveguide and an optical filter positioned to receive light from the optical waveguide. The optical waveguide includes a sequence of alternating first and second...
7099071 Method of moving a carbon nanotube  
A method of moving a carbon nanotube which is attached by one end thereof, to a junction on a substrate. The method comprises applying a charge to the carbon nanotube, and providing a repelling...
7088491 Pulse generating apparatus and method  
An apparatus and method generating an optical pulse of picosecond class (having a high duty ratio), which accurately and stably operates at an arbitrary repetition frequency, has a high OSNR, and...
7081984 Non-linear optical devices and materials therefor  
Materials suitable for use in non-linear optical devices comprise morpholinium or thiomorpholinium salts of hydroxy-substituted aliphatic or aromatic carboxylic acids selected from tartaric acid...
7035298 Frequency conversion efficiency  
Improved multipass second harmonic generation (SHG) is provided by the use of an inverting, self-imaging telescope which ensures parallelism of all passes of all beams within the nonlinear medium....
7023610 Ultraviolet laser apparatus and exposure apparatus using same  
An ultraviolet laser apparatus having a single-wavelength oscillating laser generating laser light between an infrared band and a visible band, an optical amplifier for amplifying the laser light,...
6982999 Multipass second harmonic generation  
According to an embodiment of the invention, improved multipass second harmonic generation (SHG) is provided by the use of an inverting, self-imaging telescope. This embodiment ensures parallelism...
6982822 High-flux entangled photon generation via parametric processes in a laser cavity  
An apparatus for generating a strong source of doubly or multiply entangled photons emitted non-collinearly or collinearly with respect to the pump light that is at frequency 2f includes a laser...
6952307 Electric field poling of ferroelectric materials  
A method of inducing a periodic variation of nonlinearity in a sample of ferroelectric material, comprises applying an electrically insulting mask to surface of the sample, applying an electric...
6930821 Nonlinear frequency mixer using quasi-phase-matching gratings having beam-modifying patterns  
A method and a nonlinear frequency mixer employing the method to generate at least one output light from at least one input light with the aid of a quasi-phase-matching (QPM) grating for...
6922279 Harmonic generation microscopy  
A harmonic generation microscopy employs a laser device that emits a laser beam having a predetermined wavelength that causes no autofluorescence in a biological sample and that, after excited,...
6900928 Method of patterning and fabricating poled dielectric microstructures within dielectric materials  
A method of patterning and fabricating poled dielectric microstructures in dielectric materials comprising the following steps. A poled dielectric microstructure within a dielectric material is...
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