|
Match
|
Document |
Document Title |
|
|
7535938 |
Low-noise monolithic microchip lasers capable of producing wavelengths ranging from IR to UV based on efficient and cost-effective frequency conversion
A method for producing low-noise laser output at wavelengths ranging from IR through visible to UV in various operation modes from a monolithic microchip laser comprises schemes of (1) generating...
|
|
|
7534377 |
Borate crystals for optical frequency conversion
Novel nonlinear optical materials are described having the general formula M x M′ y Sc z (BO 3 ) 4 where M and M′are metals, typically rare earth metals, and the sum of x, y, and z is about...
|
|
|
7529278 |
Nonlinear polarization pulse shaping model locked fiber laser at one micron with photonic crystal (PC), photonic bandgap (PBG), or higher order mode (HOM) fiber
A fiber laser cavity that includes a laser gain medium for receiving an optical input projection from a laser pump, wherein the laser cavity further includes a normal dispersion fiber segment with...
|
|
|
7529281 |
Light source with precisely controlled wavelength-converted average power
Control of average wavelength-converted power and/or wavelength converted pulse energy is described. One or more seed pulses may be generated and amplified with an optical amplifier to produce one...
|
|
|
7526005 |
Highly efficient second harmonic generation (SHG) vertical external cavity surface emitting laser (VECSEL) system
A Vertical External Cavity Surface Emitting Laser (VECSEL) system is provided. The VECSEL system includes a laser device including an active layer in which laser light is generated by pumping and a...
|
|
|
7518784 |
Apparatus and method of producing quantum-entangled, up-converted light beams
A single cavity may be used to produce up-converted, quantum-entangled beams relying on the common field of the pumping energy stimulating to up-converting material to produce the quantum...
|
|
|
7515617 |
Photonic device having higher order harmonic emissions
A photonic device is disclosed which has higher order harmonic emissions. A pump source is adapted to emit a laser beam at a source frequency and to have a power output of less than approximately...
|
|
|
7511879 |
Light source device and projector
A light source device includes a light source having a plurality of light emitting sections, a plurality of wavelength conversion elements each having a periodic polarization inversion structure,...
|
|
|
7512160 |
Control method of distributed Bragg reflection semiconductor laser, and image projecting apparatus
A DBR semiconductor laser is controlled in an image projecting apparatus, which includes the DBR laser having a phase and DBR region, a light wavelength converting device for converting...
|
|
|
7511880 |
Semiconductor light source module
The present invention provides a semiconductor light source module including: a semiconductor light source for emitting a light flux with a predefined wavelength; a SHG element for converting an...
|
|
|
7505492 |
Alignment of lasing wavelength with wavelength conversion peak using modulated wavelength control signal
According to one embodiment of the present invention, a programmable light source comprises one or more semiconductor lasers, a wavelength conversion device, and a laser controller. The controller...
|
|
|
7504053 |
Method and structure for nonlinear optics
A nonlinear optical crystal having a chemical formula of Y i La j Al k B 16 O 48 , where 2.8≦i≦3.2, 0.8≦j≦1.2, i and j sum to about four, and k is about 12 is provided. The nonlinear...
|
|
|
7502393 |
Light-emitting device having resonator and light source unit including the light-emitting device
To provide a light-emitting device having a resonator capable of stably and efficiently taking out light. The device includes an active medium, a resonator for confining the light having a first...
|
|
|
7502404 |
Optical pumping method for gain-media with polarization sensitive absorption
A method for optically pumping a gain-medium with partially polarized or unpolarized pump-light having a wavelength at which that gain-medium has an absorption that is dependent on the polarization...
|
|
|
7489437 |
Fiber laser red-green-blue (RGB) light source
An RGB light source that uses an optical fiber laser to generate a near-infrared (NIR) output light beam, and a wavelength conversion system that receives the output NIR light beam and forms...
|
|
|
7486435 |
Multi-port optical parametric oscillator
An optical parametric oscillator includes a source of coherent energetic pump optical signals and an optical resonator cavity which includes a set of optical parametric amplifying (OPA) crystals...
|
|
|
7486432 |
Method for preparing a periodically poled structure
A method for preparing a periodically poled structure according to this aspect of the present invention comprises the steps of providing a ferroelectric substrate and performing a poling process by...
|
|
|
7480321 |
Vertical external cavity surface emitting laser (VECSEL) having modulating mirror and display apparatus employing the same
A vertical external cavity surface emitting laser (VECSEL) having an improved mirror that forms an external cavity to modulate an emitted laser beam and display apparatus employing the same are...
|
|
|
7477666 |
All fiber based short pulse amplification at one micron
A fiber laser cavity that includes a laser gain medium for receiving an optical input projection from a laser pump. The fiber laser cavity further includes a positive dispersion fiber segment and a...
|
|
|
7477664 |
Nonlinear polarization pulse shaping mode locked fiber laser
A fiber laser cavity that includes a laser gain medium for receiving an optical input projection from a laser pump. The fiber laser cavity further includes a positive dispersion fiber segment and a...
|
|
|
7477665 |
Electronically tuned self-starting polarization shaping mode locked fiber laser
A fiber laser cavity that includes a laser gain medium for receiving an optical input projection from a laser pump. The fiber laser cavity further includes a positive dispersion fiber segment and a...
|
|
|
7474457 |
Generation of radiation with stabilized frequency
Method and device for the generation of a comb of stabilized frequency lines and/or a train of ultrashort laser pulses for stabilization of the position of the carrier wave with respect to the...
|
|
|
7474678 |
Optically pumped semiconductor laser
An optically pumped semiconductor laser and an optical pumping method are disclosed. The optically pumped semiconductor laser includes an output mirror and a reflective mirror for forming a...
|
|
|
7474458 |
Method for preparing a poled structure with inhibition blocks
A method for preparing a poled structure comprises the steps of forming a ferroelectric substrate having a top surface and a bottom surface, performing a doping process to form at least one...
|
|
|
7471707 |
Low noise, intra-cavity frequency-doubling micro chip laser with wide temperature range
A low-noise micro-chip laser includes a diode pump, a gain medium, a nonlinear crystal, and a birefringent material. The gain medium can receive the energy from the diode pump and generate a laser...
|
|
|
7471705 |
Ultraviolet laser system and method having wavelength in the 200-nm range
An apparatus and method applicable for generating ultraviolet laser light having a wavelength in the 200-nm range and/or 250-nm range; in some embodiments, using a single fiber laser pump source...
|
|
|
7466728 |
Method for laterally-coupling frequency-converted laser radiation out of a resonator
In traveling-wave ring-resonator an optically nonlinear crystal for converting visible radiation to ultraviolet (UV) radiation has an input face and two output faces. The visible light propagates...
|
|
|
7463664 |
Coherent light source and optical device
Light emitted from a wide stripe semiconductor laser with increased output and efficiency is passed through a mode converter and a wavelength selecting filter, then fed back to the active layer of...
|
|
|
7463657 |
Intracavity frequency-tripled CW laser
A method of intracavity frequency conversion in a CW laser includes causing fundamental radiation to circulate in a laser resonator. The fundamental radiation makes a first pass through an...
|
|
|
7463658 |
Laser and method for generating pulsed laser radiation
A laser for generating pulsed laser radiation. An element is arranged in the resonator to generate laser radiation having the first wavelength by frequency conversion of the primary radiation. The...
|
|
|
7460569 |
Solid state UV laser
An apparatus ( 10 a ) for scanning a light beam ( 16 ) through a crystal arrangement ( 22 ) that has a first frame member ( 28 ), a first support member ( 24 ) to support a first optical element (...
|
|
|
7457031 |
Optical configurations for wavelength-converted laser sources
An optical package is provided comprising a semiconductor laser, a wavelength conversion device, a lens assembly, and one or more adjustable optical components. The lens assembly and the adjustable...
|
|
|
7457030 |
Wavelength conversion device
The energy conversion efficiency from light that is to be converted to converted light of a wavelength conversion device is adjusted so as always to be kept stably at a maximum. The wavelength...
|
|
|
7457330 |
Low speckle noise monolithic microchip RGB lasers
A method for reducing speckle noise of a monolithic microchip laser with intracavity beam combining and sum frequency mixing is based on time averaging of uncorrelated speckle patterns generated...
|
|
|
7447244 |
Wavelength conversion laser device
A wavelength conversion laser device includes a laser light source for emitting a first wavelength light, a nonlinear optical crystal for converting the first wavelength light into a second...
|
|
|
7446930 |
Method of inverting polarization by controlling defect density or degree of order of lattice points
A problem to be solved is to provide a method of forming domain inverted regions of short period in a ferroelectric single crystal in a controllable time period of application of voltage and an...
|
|
|
7447245 |
Optically pumped semiconductor laser pumped optical parametric oscillator
An optically pumped semiconductor pumped optical parametric oscillator (OPS-pumped OPO) includes an OPS laser resonator and an OPO resonator A portion the OPS laser resonator axis and the OPO...
|
|
|
7447243 |
Laser emitting module, window cap, laser pointer, and light emitting module
A laser emitting module, a window cap thereof, a laser pointer using the same and a light emitting module are provided. A light emitted from a laser diode excites a solid-state laser medium so as...
|
|
|
7443892 |
Wavelength conversion laser apparatus
In a wavelength conversion laser device, a laser light source emits first wavelength light. A non-linear optical crystal converts the first wavelength light into second wavelength light. A...
|
|
|
7440477 |
Solid-state laser generator
Two laser media are disposed at equal intervals between a first flat mirror, which is a resonator mirror comprising a resonator, and a second flat mirror for separating laser light that transmits...
|
|
|
7433374 |
Frequency-doubled edge-emitting semiconductor lasers
A frequency-doubled, edge-emitting semiconductor laser includes a separate confinement heterostructure surmounted by a waveguide including a converting layer of a periodically poled, optically...
|
|
|
7430231 |
Vertical cavity surface emitting laser (VCSEL) arrays pumped solid-state lasers
Solid-state lasers pumped by incoherent or partially coherent, monochromatic light sources such as high power VCSEL arrays. Efficient and uniform injection of pumping energy into gain medium is...
|
|
|
7413635 |
Method for the fabrication of periodically poled Lithium Niobate and Lithium Tantalate nonlinear optical components
A process for reducing the poling field of congruent LiNbO 3 and LiTaO 3 crystal-based nonlinear optical devices and for the production of domain structures with precise reproducibility of the...
|
|
|
7414778 |
Wavelength conversion devices and fabrication methods for same
Particular embodiments of the present invention relate generally to a method of fabricating a wavelength conversion device. According to the method, the wavelength conversion device is fabricated...
|
|
|
7415164 |
Modeling scenes in videos using spectral similarity
A computer implemented method models a scene in a video acquired by a camera. For each pixel in each frame of the video, a time series of intensities of the pixel is acquired. A harmonic series is...
|
|
|
7411991 |
Tunable laser
Embodiments of methods, apparatuses, devices, and/or systems for a tunable laser are described. An apparatus includes: a tunable laser cavity including at least three mirrors, at least one filter...
|
|
|
7408963 |
Medical laser apparatus
A medical laser apparatus suitable for medical treatment, which is capable of obtaining a plurality of visible laser beams each having a different wavelength, but which has an inexpensive...
|
|
|
7403549 |
Wavelength conversion laser and image display
A wavelength converting laser device includes a laser diode producing laser light and including an optical resonator having a pair of facing reflectors, including a reflecting surface having a...
|
|
|
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...
|
|
|
7400659 |
Method and device for performing DBR laser wavelength modulation free of thermal effect
The present invention is directed to a method and system for providing a three-level current scheme to a semiconductor laser to control beam wavelength and laser temperature. A first current is...
|