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7616668 |
Fiber laser system using fiber having dysprosium
Provided is a fiber laser system including fiber containing dysprosium. The fiber laser system uses 1.7-μm pump light. A resonator of the fiber laser system includes a dichroic mirror, a partial...
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7606282 |
Optimizing VCSEL mirrors for improving temperature response
Improved slope efficiency in a VCSEL can be accomplished by selecting particular mirror layer compositions and/or mirror layer configurations that minimize increased reflectivity in the top mirror...
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7599404 |
Composite optic fibre for laser with pump and laser wave confinement, applications to lasers
A composite optic fibre for laser includes a core surrounded with a pump guiding sheath in contact with the core, sheath being a photonic structure formed by a substantially regular matrix assembly...
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7593443 |
Solid laser apparatus excited by a semiconductor laser
Single mode oscillation at a wavelength of about 1064.4 nm is enabled with no use of an etalon installed in an optical resonator by providing one of two ends of a Nd:YAG element, which acts as one...
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7545840 |
Laser element and method for manufacturing the same
It is an object of the present invention to provide a method that can provide regions having different thicknesses of a laminated body containing an organic compound with a light-emitting property...
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7539225 |
Semiconductor laser
In a semiconductor laser, a n-type AlGaInP clad layer is formed on a n-type GaAs substrate and an active layer having an emission wavelength of 600 to 850 nm is formed on the n-type AlGaInP clad...
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7522645 |
Nitride-based semiconductor laser device
A nitride-based semiconductor laser device, includes: a first cladding layer of a first conductivity type; an active layer formed above the first cladding layer; an overflow-preventing layer of a...
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7522644 |
Laser oscillator
A laser oscillator is disclosed by means of current excitation by using a light-emitting element containing an organic matter. The present invention is a semiconductor device oscillating laser by...
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7508847 |
Ultra-short laser source with rare earth ions and stable pulse train and device for lengthening a laser cavity
A rare earth ion ultrashort laser source includes a resonant cavity having a first output face partially reflecting and a second reflecting face. The source also includes a first active material,...
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7505499 |
Slab laser amplifier with parasitic oscillation suppression
A slab laser amplifier with parasitic oscillation suppression has a plurality of angled pump faces related to one another in order to decrease likelihood of parasitic oscillations, with internal...
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7501641 |
Dual hemispherical collectors
A system and method for collecting radiation, which may be used in a lithography illumination system. The system comprises a first surface shaped to reflect radiation in a first hemisphere of a...
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7496125 |
Composite laser rod, fabricating method thereof, and laser device therewith
As a composite laser rod capable of satisfying the positional stability and output stability of a laser beam, a laser rod in which a laser active element is doped is intimately inserted into a...
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7496124 |
Nitride semiconductor laser device
A nitride semiconductor laser device has an improved stability of the lateral mode under high output power and a longer lifetime, so that the device can be applied to write and read light sources...
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7482609 |
LPP EUV light source drive laser system
An apparatus and method is disclosed which may comprise a laser produced plasma EUV system which may comprise a drive laser producing a drive laser beam; a drive laser beam first path having a...
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7470473 |
Nanocrystal structures
A structure including a grating and a semiconductor nanocrystal layer on the grating, can be a laser. The semiconductor nanocrystal layer can include a plurality of semiconductor nanocrystals...
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7466734 |
Compact external cavity mid-IR optical lasers
Highly compact quantum well based laser systems with external cavity configurations are tightly integrated in a very small mounting system having high thermal and vibrational stability. The...
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7463660 |
Gain media edge treatment to suppress amplified spontaneous emission in a high power laser
A novel method and apparatus for suppressing ASE and parasitic oscillation modes in a high average power laser is introduced. By roughening one or more peripheral edges of a solid-state crystal or...
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7460574 |
Cr3+-doped laser materials and lasers and methods of making and using
A laser medium includes a single crystal of chromium-doped LiSc l-x In x Ge 1-y Si y O 4 , where 0≦x≦1 and 0≦y≦1. Preferably, x and y are not both 0. A laser, such as a tunable near...
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7409122 |
End face structure of optical fiber, optical fiber laser, and laser processing apparatus
An end face structure of an optical fiber includes a coreless fiber fused to an emitting end face of the fiber optical fiber and a coating material disposed around at least the coreless fiber, a...
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7397832 |
Laser cavity pumping method and laser system thereof
A pumping method of discrete elements solid state laser systems pumped by semiconductor laser diodes, which sends a pump beam through an active medium, comprising a first face first crossed by said...
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7390617 |
Selective light absorption shifting layer and process
The invention includes a process for forming a laser pixel array useful with a pump-beam, comprising:
a) forming a layer containing a formamide of an amino dye compound on a support wherein...
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7359416 |
Optical semiconductor device
An optical semiconductor device includes a semiconductor laser chip, a base for mounting the semiconductor laser chip and a solder layer sandwiched between the top surface of the base and the...
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7359415 |
Cr4+-doped mixed alloy laser materials and lasers and methods using the materials
A laser medium includes a single crystal of Cr 4+ :Mg 2-x M x Si 1-y A y O 4 , where, where M is a bivalent ion having an ionic radius larger than Mg 2+ , and A is a tetravalent ion having an ionic...
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7349455 |
Solid-state laser with compensation for thermooptical effects
To compensate for undesirable thermooptical effects in optical pumping of solid-state laser rods, regions of the lateral surface are heated in such a way that reverse thermal gradients are created...
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7336690 |
Solid-state laser system
A simple and high-reliability constitution provides a solid-state laser system that allows a high-output, long-pulse-width laser beam to be obtained. A solid-state laser system that includes a...
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7319709 |
Creating photon atoms
A narrow linewidth fluorescent emitter can incorporate a chromophore into a microcavity that can support low-order optical modes.
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7292613 |
Half-wavelength micropost microcavity with electric field maximum in the high-refractive-index material
A micropost microcavity device has a maximum field intensity at the center of a high-index spacer as well as a small mode volume. The device has an approximately half-wavelength thick low-index...
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7280577 |
Pumping method for laser equipment
Laser equipment in which pumping every dependence of output beam diameter and beam wavefront curvature is reduced. The total pumping energy of at least one of laser active media disposed beyond...
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7266138 |
Pump arrangement for transversally pumping an active medium
The invention relates to a pump arrangement for transversally pumping an active medium, especially a laser rod, wherein two pump light sources are arranged on a plane perpendicular to the...
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7262758 |
Display device using vertical cavity laser arrays
A display apparatus for producing colored pixelated light includes a backlight unit for providing a pump-beam light. The apparatus also includes a microcavity light-producing array responsive to...
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7254152 |
Optically pumped active mirror with improved performance and reduced parasitics
A system and a method for providing more gain while minimizing the potential for parasitic oscillation and amplified spontaneous emissions in an optically pumped optical amplifier or laser system,...
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7242703 |
Organic injection laser
An unipolar organic injection laser in which electrically-stimulated intraband transitions result in lasing. An active region includes at least one organic injector layer and at least one organic...
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7242702 |
Thin-film large-area coherent light source, filter and amplifier apparatus and method
Lasing at the edge of the reflection band or at a defect state within the reflection band of a thin one-dimensional feedback structure is used to create a large-area, thin-film laser source with...
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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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7218659 |
High power semiconductor laser diode
Semiconductor laser diodes, particularly high power AlGaAs-based ridge-waveguide laser diodes, are often used in opto-electronics as so-called pump laser diodes for fiber amplifiers in optical...
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7215696 |
Electrically pumped semiconductor active mirror with improved performance and reduced parasitics
A system and a method for providing more gain while minimizing the potential for parasitic oscillation and amplified spontaneous emissions in an electrically pumped optical amplifier or laser...
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7203214 |
Off-peak optical pumping of yttrium orthovanadate
A laser includes an Nd:YVO4 crystal end-pumped with diode-laser light having a wavelength at which the absorption coefficient for Nd:YVO4 is less than about 0.35 (35%) of the absorption coefficient...
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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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7167496 |
Mechanical stabilization of lattice mismatched quantum wells
In order to achieve a long wavelength, 1.3 micron or above, VCSEL or other semiconductor laser, layers of strained quantum well material are supported by mechanical stabilizers which are nearly...
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7161968 |
Laser apparatus
In a solid state, optically end-pumped laser, the laser gain medium has a tapered diameter to minimize the maximum path length of barrelling amplified stimulated emission (ASE), and a roughened...
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7136407 |
Semiconductor laser diode with removable high reflection film and method of manufacturing the same
Provided are a semiconductor laser diode and a method of manufacturing the same. The semiconductor laser diode includes an n-type compound semiconductor layer; a resonant layer stacked on a...
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7113533 |
Amplifying medium for solid-state dye lasers
The present invention relates to an amplifying medium for solid-state dye lasers and to a solid-state dye laser provided with an amplifying medium of this type. The amplifying medium according to...
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7113529 |
Pulsed CO2 laser including an optical damage resistant electro-optical switching arrangement
An electro-optical switch includes an optical assembly arranged to transmit laser-radiation. The optical assembly comprises an active optical crystal. On one of two opposite surfaces of the crystal...
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7106776 |
Discharge-pumped “dressed-atom” coherent light amplifier and generators
A novel practicable type of gaseous optical gain medium for efficiently generating intense, highly monochromatic, continuous-wave (CW) or pulsed, coherent light beams is disclosed. Gain results...
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7102178 |
Small format optoelectronic package
An optoelectronic package ( 10 ) includes a base substrate ( 40 ), a plurality of solder pads ( 21 ) and a can ( 30 ). The base substrate includes a mounting seat ( 41 ) laminated first and second...
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7095762 |
Laser irradiation method, laser irradiation apparatus, and semiconductor device
An object of the present invention is obtaining a semiconductor film with uniform characteristics by improving irradiation variations of the semiconductor film. The irradiation variations are...
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7084433 |
Semiconductor laser device capable of maintaining the operation current low and method of manufacturing the same
In this semiconductor laser device, an InGaP etching block layer 11 as an etching selection layer having etching selectivity for an n-type AlInP current block layer 10 , which is a...
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7075964 |
Diode-pumped solid-state laser oscillator
A diode-pumped solid-state laser oscillator optically pumps a laser medium. The oscillator has at least one pumping light source that emits light in a predetermined wavelength band, and a laser...
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7065115 |
External cavity organic laser
A thin-film organic laser, that includes: a substrate; a bottom mirror provided on the substrate; at least one active region deposited on the bottom mirror, wherein the at least one active region...
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7058245 |
Integrated optical circuits
An optoelectronic device having a flexible substrate and an optical interconnect (i.e. waveguide) comprising a sol-gel based material formed on the substrate. The sol-gel based waveguide is capable...
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