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7558304 Single crystal laser material and system containing the same material  
The invention relates to laser materials and specifically to single crystal active media for solid state lasers operating in the middle-infrared (Mid-IR) 4-5 μm range of optical spectrum, wherein...
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...
7440480 Tetravalent chromium doped laser materials and NIR tunable lasers  
A method is described to improve and produce purer Cr 4+ -doped laser materials and lasers with reduced co-incorporation of chromium in any other valence states, such as Cr 3+ , Cr 2+ , Cr 5+ , and...
7433376 Zig-zag laser with improved liquid cooling  
A zig-zag laser has the ability to generate a high power beam while effectively removing heat without degrading the beam quality. The laser has a series of gaps interposed between the thin slabs,...
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...
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...
7224707 Suppression of mode-beating noise in a Q-switched pulsed laser using novel Q-switch device and applications  
A novel Q-switch device enables significant quality and value improvement for a Q-switched laser system by achieving a significant reduction of mode-beating noise during the pulsed output. The...
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...
7116687 High repetition rate passively Q-switched laser for blue laser based on interactions in fiber  
A laser apparatus is disclosed. The apparatus includes a Neodymium-doped lasing material having first and second surfaces and a passive Q-switch optically coupled to the second surface. The...
7103078 Laser containing a distributed gain medium  
A laser device which may be used as an oscillator or amplifier comprising a chamber having a volume formed therein and a gain medium within the volume. The gain medium comprises solid-state...
7007848 Arrangement for generating asymmetrical green laser beam  
A green laser beam is generated and is focused and shaped with an asymmetrical beam cross-section in an electro-optical reader for reading indicia. The green laser beam is also used to illuminate...
6996137 Solid-state devices with radial dopant valence profile  
A solid state, laser light control device ( 20, 30 ) and material ( 10 ), and methods of producing same. The device ( 20, 30 ) and material ( 10 ) consist essentially of a host material ( 14 )...
6973108 Arrangement for pumping an anisotropic laser crystal  
The object in an arrangement for pumping an anisotropic laser crystal is to reduce the influence of the destruction limit of the laser crystal on increased pump power density and, in this...
6967766 Zigzag slab laser amplifier with integral reflective surface and method  
A solid-state laser beam amplifier with integrated reflective surface. A rectangular slab gain medium receives a first portion of an input laser beam along a first zigzag reflection path within the...
6937630 Laser oscillation method and laser device  
To provide a laser oscillation method and a laser device, which use a laser medium such as an Nd:GdVO 4 crystal to which neodymium is doped in high concentration exceeding 1% in atomicity ratio,...
6911551 Spiro compounds based on boron or aluminum and the use of the same in the electronics industry  
The present invention relates to substituted boron or aluminum spiro compounds and their use in the electronic industry. The compounds of the invention are used as electron transport material, hole...
6870868 Organic laser having improved linearity  
An organic vertical cavity laser device includes a substrate; a bottom dielectric stack reflective to light over a predetermined range of wavelengths and being disposed over the substrate, and an...
6862309 Passivation scheme for oxide vertical cavity surface-emitting laser  
A method for forming an oxide VCSEL (vertical cavity surface-emitting laser) includes forming a VCSEL structure, forming an oxidation cavity partially through the VCSEL structure, oxidizing a layer...
6859467 Electro-optic modulator material  
An electro-optic device for use with a laser beam. A crystal has a first face and a second face. Means are provided for applying a voltage across the crystal to obtain a net phase retardation on...
6853662 Electrically pumped, polycrystalline ZnO laser and a method of fabricating the same  
The invention includes an electrically pumped polycrystalline ZnO laser and it's fabrication procedure. A film of ZnO is grown on a suitably adapted polycrystalline underlayer in which the grains...
6822994 Solid-state laser using ytterbium-YAG composite medium  
A laser device employs a laser slab having an ionic layer and a nonionic layer, joined through an optical-quality interface. The laser slab has a trapezoidal cross-section in a direction...
6810052 Eyesafe Q-switched laser  
An eyesafe, Q-switched, laser system for target identification, ranging, and gated viewing purposes features a Resonant Pumped Erbium (RPE) laser, which exhibits a longer storage lifetime that...
6788723 Resonator array for solid-state lasers  
A stable resonator for solid-state lasers which exhibit a thermally induced lensing effect, includes a laser rod, a rear mirror and a semi-reflecting output mirror. The invention is characterized...
6757310 Solid-state laser for customized cornea ablation  
A diode pump, solid state laser deep UV laser source is described for customized ablation in photo-refractive surgery. The solid-state deep UV laser source is tailored to have a pulse repetition...
6693924 Optical fiber laser structure and system based on ASE pumping of cladding element  
An optical fiber laser structure and system are disclosed. The fiber laser structure includes a core, an inner cladding, and an outer cladding. The core has a first and second end and includes a...
6650670 Polycrystalline ceramic laser  
Composite lasers made of contiguous layers of pure and doped polycrystalline ceramics are introduced. The close thermal contact between such layers of the same ceramic allows an efficient and low...
6646793 High gain laser amplifier  
A high gain optical amplifier and method. Generally, the inventive amplifier includes a first crystal having an axis and a first index of refraction and a second crystal bonded to the first crystal...
6625186 Laser frequency doubling device of ReCa4O(BO3)3 crystal with specific cut angles  
The present invention belongs to the field of optoectronics. The main content of the present invention is to determine the optimum cut-orientations of ReCOB crystal frequency-doubling devices. For...
6600597 Photonic crystal amplifier for optical telecommunications system  
A photonic crystal amplifier that employs a photonic crystal gain medium for a telecommunications system. Pump light is coupled into the amplifier at one end of the gain medium and signal light is...
6587496 Single-mode pump power source  
The mode and wavelength of a conventional, multi-mode, wide-stripe laser diode is converted in an Nd 3+ ion-doped laser host crystal to a stable, single-mode output that falls within the spectral...
6567442 Laser device  
A laser device which has an excellent characteristic originally exerted by an yttrium-aluminum-garnet crystal doped with neodymium and is entirely reduced in size by using an entirely downsized...
6567431 Multi-wavelengths infrared laser  
A long wavelength infrared laser system is disclosed where radiation from laser sources such as frequency-doubled Nd:YAG or a Cr:LiSAF is used to resonantly pump a gain medium consisting of a...
6510169 Method for generating laser light and laser crystal  
A crystalline material for optically pumped solid state lasers has the chemical composition of M 3 RE 1-x Yb x (BO 3 ) 3 , where M is selected from the group Mg, Ca, Sr, Ba, and Ra, optionally...
6490309 Laser-diode-pumped laser apparatus in which Pr3&plus -doped laser medium is pumped with GaN-based compound laser diode  
In a laser-diode-pumped laser apparatus, a solid-state laser crystal doped with at least one rare-earth element including at least Pr 3+ is pumped with a laser diode, and emits laser light. In the...
6456637 Waveguide lasers and optical amplifiers having enhanced thermal stability  
In accordance with the invention, a waveguide laser or amplifier having a peak absorption wavelength is provided with pump emitters having wavelengths deliberately offset from the peak absorption...
6404788 Cr and Yb codoped optical material systems for enhanced infrared fluorescence emission and their application schemes  
Provided are complex optical material that trivalent ytterbium ion is codoped into single crystalline, poly crystalline or amorphous material containing tetravalent chromium ion or trivalent...
6370172 Non-exothermic quasi-two level laser  
A method for selecting laser and pump frequencies for a quasi-two level solid state laser with a selected laser host and operating the laser with the selected laser and pump frequencies, the host...
6345064 Semiconductor laser having an improved current blocking layers and method of forming the same  
A semiconductor device provides a current blocking layer for a current confinement, the current blocking layer comprising a compound semiconductor crystalline, wherein the compound semiconductor...
6304584 Blue diode-pumped solid-state-laser based on ytterbium doped laser crystals operating on the resonance zero-phonon transition  
The invention provides an efficient, compact means of generating blue laser light at a wavelength near .about.493+/-3 nm, based on the use of a laser diode-pumped Yb-doped laser crystal emitting on...
6304583 Utilization of telluride quaternary nonlinear optic materials  
A solid state laser device made from a nonlinear optic quaternary alloy of Silver, Gallium, Selenium and Tellurium semiconductor material or Silver, Gallium, Sulfur and Tellurium semiconductor...
6301275 Self-frequency doubled Nd-doped YCOB laser  
Neodymium-doped yttrium calcium oxyborate (Nd:YCOB) is the single active gain element for a solid-state laser device capable of achieving both lasing and self-frequency doubling optical effects. A...
6263006 Electroluminescent solid state device  
An electroluminescent solid state device includes an active body member that is formed of a single crystalline metal oxide, such as aluminum oxide, that is doped with a rare earth element, such as...
6212215 Hybrid solid state laser system using a neodymium-based master oscillator and an ytterbium-based power amplifier  
In a master oscillator-power amplifier (MOPA) hybrid laser system, the master oscillator (MO) utilizes a Nd 3 + -doped gain medium and the power amplifier (PA) utilizes a diode-pumped Yb 3 + -doped...
6185236 Self frequency double nd-doped: YCOB LASER  
Neodymium-doped yttrium calcium oxyborate (Nd:YCOB) is the single active gain element for a solid-state laser device capable of achieving both lasing and self-frequency doubling optical effects. A...
6185231 Yb-doped:YCOB laser  
A tunable, solid state laser device with both visible and infrared laser emission is developed with a trivalent ytterbium-doped yttrium calcium oxyborate crystal as the host crystal. The Yb:YCOB...
6178040 Laser with two orthogonal zig-zag slab gain media for optical phase distortion compensation  
An optical amplifier for use with a solid state laser which includes a pair of elongated slabs of a solid state lasing material, such as a rare earth doped yttrium-aluminum-garnet (YAG) crystal....
6104529 Optical fiber communication system employing wide band crystal alloy light generation devices  
In accordance with the invention, an improved optical communication system employs light-generating devices comprising a phonon-tuned crystal alloy host doped with an optically active atom. In one...
6101207 Dye laser  
A dye laser for generating laser pulses of long duration comprising an optic resonator which comprises an elongated dye cell, which contains light gain medium that can be excited to population...
6067308 Electroluminescent solid state device  
An electroluminescent solid state device includes an active body member that is formed of a single crystalline metal oxide, such as aluminum oxide, that is doped with a rare earth element, such as...
6047013 Low-phonon-frequency chalcogenide crystalline hosts for rare earth lasers operating beyond three microns  
The invention comprises a RE-doped MA 2 X 4 crystalline gain medium, where M includes a divalent ion such as Mg, Ca, Sr, Ba, Pb, Eu, or Yb; A is selected from trivalent ions including Al, Ga, and...
Matches 1 - 50 out of 323 1 2 3 4 5 6 7 >