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7620088 |
Surface emitting-semiconductor laser component featuring emission in a vertical direction
A surface-emitting semiconductor laser component, in particular an electrically pumped semiconductor laser component, featuring emission in a vertical direction. The component is provided for the...
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7620079 |
Wavelength converter apparatus
A compact apparatus is provided for stably converting a wavelength of a laser diode with the use of an optical fiber and a wavelength selective device. Employing a bulk type element as a wavelength...
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7616671 |
Light source device, control method therefor, lighting device, monitor device, and image display device
A light source device includes a light source for emitting a laser beam, a power supply drive circuit for pulse-driving the laser beam, a wavelength conversion element for converting a wavelength...
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7616670 |
Laser light source apparatus and image generating apparatus using laser light source apparatus
Disclosed is a laser light source apparatus including an excitation light source, a pair of resonator mirrors, and a resonator including the excitation light source and the pair of resonator...
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7613215 |
High efficiency second harmonic generation vertical external cavity surface emitting laser
A vertical external cavity surface emitting laser (VECSEL) in which the full-width at half maximum (FWHM) of laser light is reduced by two etalon filter layers to improve the efficiency of second...
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7612935 |
Third-order optical autocorrelator for time-domain operation at the telecommunication wavelengths
A device and method for producing a third harmonic signal from an optical pulse of wavelength k. In the device and method, an optical pulse at a wavelength k is incident on a material including at...
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7612934 |
Nonresonant multiple pass nonlinear structure
A system, a structure, and a method for the generation of second harmonic light are provided. A laser system comprises a seed laser that produces a fundamental frequency light, and a nonresonant...
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7609731 |
Laser system using ultra-short laser pulses
A laser system using ultrashort laser pulses is provided. In another aspect of the present invention, the system includes a laser, pulse shaper and detection device. A further aspect of the present...
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7605973 |
Optical wavelength conversion light source
An allowable temperature range satisfying phase matching conditions of a wavelength conversion device is widened. A wavelength conversion light source includes a semiconductor laser diode device (...
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7602832 |
Surface emitting laser aligned with pump laser on single heat sink
A vertical external cavity surface emitting laser is provided that is integrally mounted on a single heat sink together with a pump laser. In the surface emitting laser, a laser chip has a gain...
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7602824 |
Device and method for supplying short-wavelength light
The present invention broadly comprises a device for supplying light at an illumination wavelength shorter than 300 nm. The device includes a first subassembly, having a light source for delivering...
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7599415 |
Light source device, lighting device, monitor device, and projector
A light source device includes a light source section for supplying a laser beam, a wavelength conversion element for converting a wavelength of the laser beam from the light source section, a...
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7599410 |
Semiconductor-diode-pumped solid state laser device
A solid state laser medium is composed of Nd:YAG, the wavelength of a second harmonic wave is 557 to 559 nm and a free spectral range of a solid etalon falls in any of the values of a range A of...
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7599408 |
Tunable narrow linewidth laser source
A tunable laser source has a first laser source to generate a low power continuous wave laser light having a wavelength λ 1 . A second laser source generates a low power continuous wave laser...
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7593440 |
MOPA laser apparatus with two master oscillators for generating ultraviolet radiation
Laser apparatus including two different, pulsed MOPAs, one having a fundamental wavelength of 1064 nm and the other having a fundamental wavelength of 1564 nm, provide trains of optical pulses. The...
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7593439 |
Laser diode-pumped monolithic solid state laser device and method for application of said device
An intracavity-doubled laser device, includes a pumping laser-diode, a Nd:YAG amplifying medium stimulated by a laser beam with a fundamental wavelength emitted by the laser diode, the output face...
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7593438 |
Driving method for laser light source device, laser light source device, image display device, monitor device, and illumination device
A driving method for laser light source device includes: providing a laser light source device including a laser light source, a wavelength conversion element converting the wavelength of the light...
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7593437 |
MOPA laser apparatus with two master oscillators for generating ultraviolet radiation
Laser apparatus including two different, pulsed MOPAs, one having a fundamental wavelength of 1064 nm and the other having a fundamental wavelength of 1547 nm, provide trains of optical pulses. The...
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7586971 |
External-cavity laser light source apparatus and laser light emission module
An external-cavity laser light source apparatus includes a plurality of laser light emission modules, each including a first mirror, a second mirror reflecting fundamental wave light toward the...
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7583710 |
Laser and environmental monitoring system
A laser and monitoring system is provided. In another aspect of the present invention, the system includes a laser, pulse shaper and detection device. A further aspect of the present invention...
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7583431 |
Wavelength conversion optical device, laser light source, and image display optical device
A wavelength conversion optical device is provided with a fundamental wave light source ( 301 ) which outputs a fundamental wave (L 11 ) including a P polarized light and an S polarized light that...
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7576908 |
Fiber device, wavelength converter and image forming apparatus
The present invention concerns a fiber device capable of shifting an oscillation wavelength of a fundamental wave of a laser emitted therefrom, and is provided with a laser cavity including a fiber...
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7573920 |
Vertical external cavity surface emitting laser
Provided is a Vertical External Cavity Surface Emitting Laser (VECSEL). The VECSEL includes a semiconductor chip, a pump laser, a narrow bandwidth polarization filter, an external mirror, and a...
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7570677 |
Optical device, laser beam source, laser apparatus and method of producing optical device
After forming domain inverted layers 3 in an LiTaO 3 substrate 1 , an optical waveguide is formed. By performing low-temperature annealing for the optical wavelength conversion element thus...
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7570676 |
Compact efficient and robust ultraviolet solid-state laser sources based on nonlinear frequency conversion in periodically poled materials
A compact and efficient ultraviolet laser source based on a optically-pumped solid-state or fiber laser that produces near-infrared output light suitable for nonlinear frequency conversion. The...
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7567596 |
Control system and apparatus for use with ultra-fast laser
A control system and apparatus for use with an ultra-fast laser is provided. In another aspect of the present invention, the apparatus includes a laser, pulse shaper, detection device and control...
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7567595 |
Laser source with interdigital heater electrodes and underlying current confinement layer
A semiconductor laser source is provided wherein the wavelength selective section of the laser diode comprises a P+ type current confinement layer and first and second sets of interdigital heater...
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7567594 |
Stabilization of actively Q-switched lasers
The invention discloses an actively Q-switched laser with an intracavity nonlinear coupler in which a stable optical frequency converted output is generated. A Gain Fluctuation Insensitivity...
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7561612 |
Laser source device, image display device equipped with the laser source device, and monitor device
A laser source device provided with a light source, a wavelength conversion element, an external resonator, and an optical path conversion element. The wavelength conversion element is disposed...
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7561604 |
Laser light source device, illumination device, image display device, and monitor device
A laser light source device includes: a light source; an external resonator, a wavelength conversion element converting the wavelength of part of incident light having the first wavelength into the...
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7551654 |
Coherent light source and optical system
In a coherent light source in which limitations on the wavelength of emitted light are relaxed, a coherent light source for simultaneously emitting a first light ( 3 ) and a second light ( 4 )...
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7551653 |
Multiple wavelength laser arrangement
A laser arrangement comprising a first and a second resonant cavity for generating a first and a second fundamental wavelength. A first and a second non-linear region are provided in the second...
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7545837 |
One-dimensional illumination apparatus and imaging apparatus
A one-dimensional transverse multiple mode laser is used for a one-dimensional illumination apparatus. A pumping light source, and a laser medium and a wavelength conversion device (nonlinear...
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7542492 |
Controlled misalignment in wavelength-converted laser sources
Methods of controlling semiconductor lasers are provided where the semiconductor laser generates an output beam that is directed towards the input face of a wavelength conversion device. Particular...
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7542491 |
Wavelength converter and two-dimensional image display device
The present invention aims to provide a wavelength converter capable of stably obtaining a W-class high-output green laser beam and a 2D image display device using this wavelength converter. By...
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7542490 |
Reduction of surface heating effects in nonlinear crystals for high power frequency conversion of laser light
A device for generating a frequency converted laser beam includes a nonlinear crystal having a first end face and a second end face opposed to the first end face. The nonlinear crystal is...
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7540921 |
Crystallization apparatus, crystallization method, phase modulation element, device and display apparatus
A phase modulation element according to the present invention has a first area having a first phase value based on a phase modulation unit having a predetermined size and a second area having a...
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7539222 |
Method of operating laser light source
A method of operating a laser light source including a wavelength conversion device in which two wavelength laser beams are input to a nonlinear crystal to output a sum frequency wavelength,...
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7538936 |
Pulse laser beam generating device
To induce a targeted non-linear optical effect by a high-peak-power light by using a light pulse from a semiconductor laser without using a light pulse from a large, high-average-power solid laser...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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,...
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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...
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