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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...
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7313155 |
High power Q-switched laser for soft tissue ablation
The present invention discloses a high power Q-switched, intracavity frequency-doubled laser for laser ablation of soft tissue. Operating a high power Q-switched laser in a frequent on-off mode is...
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7305015 |
Ultraviolet laser-generating device and defect inspection apparatus and method therefor
An ultraviolet laser-generating device, for use in a defect inspection apparatus and a method thereof, etc., comprising: a laser ray source for irradiating and emitting a basic wave of laser ray...
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7301981 |
Methods for synchronized pulse shape tailoring
A plurality of subresonators ( 12, 14 ), having different design configurations, share a common resonator section ( 18 ) such that the lasing action can be substantially synchronized to provide...
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7296897 |
Projection display apparatus, system, and method
In an apparatus, system, and method for generating a projected display, a light source generates red, green, and blue light using arrays of extended cavity surface emitting semiconductor lasers....
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7289549 |
Lasers for synchronized pulse shape tailoring
A plurality of subresonators ( 12, 14 ), having different design configurations, share a common resonator section ( 18 ) such that the lasing action can be substantially synchronized to provide...
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7286581 |
Self-monitoring light emitting apparatus
A self-monitoring light source is provided. The self-monitoring light source includes a light source that generates light and a light monitor that receives a portion of the generated light. The...
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7286580 |
Method for pulse control in a laser including a stimulated brillouin scattering mirror system
A laser system, such as a master oscillator/power amplifier system, comprises a gain medium and a stimulated Brillouin scattering SBS mirror system. The SBS mirror system includes an in situ...
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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...
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7272158 |
Highly efficient waveguide pulsed THz electromagnetic radiation source and group-matched waveguide THz electromagnetic radiation source
Electromagnetic radiation sources operating in the Terahertz (THz) region capable of overcoming the Manley-Rowe limits of known optical schemes by achieving phase matching between a THz wave and...
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7269189 |
Coherent light source based on sum-frequency mixing
A method and a device for generating visible coherent radiation is disclosed. The visible coherent radiation is generated by sum-frequency mixing of a first fundamental beam from a diode laser and...
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7248618 |
Systems and methods for second harmonic generation using three-dimensional Bragg grating elements
Apparatus and methods for altering one or more spectral, spatial, or temporal characteristics of a light-emitting device are disclosed. Generally, such apparatus may include a volume Bragg grating...
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7248608 |
Monoblock laser
An improved monoblock laser cavity is made by elongating the Optical parametric oscillation (OPO) cavity. This can be accomplished by changing the coatings on the OPO material and Q-switch and by...
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7245805 |
Method and apparatus for producing a multiple optical channel source from a supercontinuum generator for WDM communication
A system and method for producing a multiple optical channel source (MOCS). The method includes producing the SC in a medium using at least one femto-second or pico-second optical input pump pulse;...
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7242700 |
Stabilized frequency-converted laser system
A laser system includes an optically pumped laser resonator that produces a fundamental-wavelength beam. A temperature-tuned frequency converter outside the laser resonator converts a portion of...
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7239653 |
Method and apparatus for generating MID and long IR wavelength radiation
A narrow line width optical parametric oscillator (OPO) ( 10 ) is used a pump for a tunable optical parametric oscillator to enable it to produce a mid and long wavelength IR output over a wide...
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7239654 |
Wave length plate, wavelength filter and wavelength monitor
On a plate of birefringent crystal made of an LiNbO 3 crystal or an LiTaO 3 crystal, a conductive substance is adhered to the whole periphery of side surfaces of the plate that intersect an...
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7236674 |
Optical waveguide device, coherent light source using the same and optical apparatus having the same
An optical waveguide device has a substrate composed of a nonlinear optical material and a periodically domain-inverted structure having the same composition as the nonlinear optical material,...
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7218653 |
Wavelength conversion method and wavelength conversion element
An ultraviolet laser is provided that increases the conversion efficiency of laser beams when harmonics having wavelengths of less than 355 nm are generated by converting laser beams with a...
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7211812 |
Entangled photon pair generating apparatus
An entangled photon pair generating apparatus has a first definite polarization photon pair generating apparatus for generating a first definite polarization photon pair beam according to an...
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7209504 |
Solid laser apparatus
A solid laser apparatus has either a combination of a lowpass filter ( 9 c ) and a highpass filter ( 9 d ) or a bandpass filter 9 f provided in its output control circuit ( 8, 9, 10 ) for...
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7209500 |
Stimulated Brillouin scattering mirror system, high power laser and laser peening method and system using same
A laser system, such as a master oscillator/power amplifier system, comprises a gain medium and a stimulated Brillouin scattering SBS mirror system. The SBS mirror system includes an in situ...
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7209501 |
Multi-wavelength laser source based on two optical laser beat signal and method
In the system of the present invention, two DFB laser outputs are combined in a first stage to produce a beat signal. The two main channels interfere with each other to form beat signals. This...
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7202993 |
Production of tuneable picosecond light pulses in a visible spectral range
The invention relates to a device for the production of tuneable light impulses in a visible spectral range, comprising a laser system (LS) which emits femtosecond light impulses in the infrared...
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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...
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7184144 |
High speed swept frequency spectroscopic system
A high scan rate spectroscopic system converts a narrow-band laser pulse into a multispectral pulse, using, for example, a nonlinear fiber. The multispectral pulse is then converted to a swept...
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7171089 |
Enhanced supercontinuum generation in highly nonlinear fibers using post-fabrication processing
Enhancement of the supercontinuum generation performance of a highly-nonlinear optical fiber (HNLF) is accomplished by performing at least one post-processing treatment on the HNLF. Particularly,...
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7161725 |
Frequency locker
A method and assembly for frequency stabilization of an optical signal especially from a laser, the assembly ( 11 ) comprising beam splitter ( 15 ), a passive frequency discriminator ( 16 ), and a...
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7158548 |
Laser cavity
A laser cavity comprising a gain medium and first and second end mirrors, wherein the laser cavity further comprises a birefringent material and a mirror arranged to fold light propagating within...
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7145924 |
Solid laser apparatus
A solid laser apparatus has either a combination of a lowpass filter and a highpass filter or a bandpass filter provided in its output control circuit for increasing the gain and adjusting the...
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7142354 |
Wavelength conversion method, wavelength conversion device, and laser beam machine
In a wavelength converting method, an ambient that is in contact with a surface of a non-linear optical crystal from which wavelength-converted light is outputted is a gas that is lower in content...
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7142570 |
Apparatus and method for generating optical carrier for microwave and millimeterwave photonics system
An apparatus and a method for generating an optical carrier is disclosed. The apparatus includes: a light source generating a pump light; a SBS generator for stimulated Brillouin scattering the...
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7136403 |
Crystal mounting in solid state laser systems
Crystal housing apparatus for adjustably positioning cooperating non-linear optical crystals in a laser beam generating system, includes a housing ( 50 ) with entry ( 60 ) and exit ( 62 ) windows...
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7130321 |
Intracavity frequency-tripled CW laser with traveling-wave ring-resonator
A traveling-wave ring laser resonator includes one or more gain-elements for generating fundamental radiation and three optically nonlinear crystals. A portion of the fundamental radiation is...
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7110426 |
Laser beam generating apparatus
A laser beam generating apparatus is configured such that a laser beam having a first wavelength obtained by a semiconductor laser containing gallium nitride is led in an external resonator using a...
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7095772 |
Extreme chirped/stretched pulsed amplification and laser
Methods, devices and systems for generating ultrashort optical linear chirped pulses with very high power by amplifying the pulses so that their temporal duration is longer than the storage time of...
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7088744 |
Laser for use in non-linear optics
The combination of coupling modes and a Q-switch allows amplitude modulated laser pulses to be produced which contain a high output capability and high repetitive rate. The envelope of the pulse of...
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7079557 |
Intracavity OPO laser
A laser having an optical parametric oscillator for providing a preselected wavelength beam is provided. A nonlinear crystal cut for phase matching condition preferably cut for noncritical phase...
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7075955 |
Integrated narrow-line tunable optical parametric oscillator
An integrated optical parametric oscillator, having an optical parametric oscillation region to convert a pump source into a signal beam and an idler beam, and a fine-steering region to adjust...
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7076138 |
Nanophotonic devices based on quantum systems embedded in frequency bandgap media
The present invention describes nanophotonic materials and devices for both classical and quantum optical signal processing, transmission, amplification, and generation of light, which are based on...
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7072367 |
Systems for generating high-power short-pulse laser light
A method for generating ultra-short pulse amplified Raman laser light. Short pulse laser light is amplified, and a portion thereof is introduced into a Raman oscillator to produce compressed laser...
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H002161 |
Solid state laser pumped by visible light-emitting-diode
Visible light-emitting-diodes (LEDs) are inexpensive, provide emissions in many wavelengths and are powerful enough to pump solid state laser rods. The LED light is directed to the laser rod (laser...
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7072368 |
Optical contacting method and apparatus
Disclosed is a method and apparatus for improving the performance of a microlaser. A laser material ( 110 ) is optically contacted to a nonlinear material ( 120 ), either directly or through an...
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7065109 |
Laser with narrow bandwidth antireflection filter for frequency selection
A laser includes a narrow bandwidth AR coating for defining a frequency range for laser emission within the laser cavity. Advantageously, the narrow-band AR coating has a very low loss, which can...
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7065110 |
Scalable wavelength shifted laser source and method
A laser array architecture scalable to very high powers by fiber amplifiers, but in which the output wavelength is selectable, and not restricted by the wavelengths usually inherent in the choice...
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7058097 |
Wavelength locking for multi-wavelength laser source
New systems and methods for wavelength locking for a class of multi-wavelength laser sources (MWLS) are provided. In this type of MWLS, the set of output wavelength channels are produced from a...
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7039077 |
Optical wavelength converting apparatus, and optical wavelength converting method
An optical wavelength converting apparatus includes a first semiconductor laser, a second semiconductor laser, and a wavelength converting element for converting first and second laser light from...
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7035297 |
Continuous wave sodium beacon excitation source
1064-nm and 1319-nm light respectively generated by two lasers is combined and injected into a doubly resonant sum-frequency generator. The optical path length of the sum-frequency generator is...
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7016382 |
Method and apparatus for stabilizing laser wavelength
Laser wavelength stabilization is achieved by locating a low selectivity reference filter in a reference path of a laser beam. The low selectivity reference filter, with a periodicity greater than...
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7016389 |
Diode pumped laser with intracavity harmonics
A diode end-pumped solid state laser is provided which produces improved power output, long term stability and improved conversion efficiency from the pumping power, high as well as low power...
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