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| Number | Title | Issue Date |
| 8050303 | Laser based on quantum dot activated media with forster resonant energy transfer excitation A laser gain medium. The novel laser gain medium includes a host material, a plurality of quantum dots dispersed throughout the host material, and a plurality of laser active ions surrounding each of the quantum dots. The laser active ions are disposed in close prox... | 11/01/2011 |
| 7813394 | Laser with gain medium suppressing higher order modes to provide lasing output with high beam quality High-power, diode-pumped solid state (DPSS) pulsed lasers are preferred for applications such as micromachining, via drilling of integrated circuits, and ultraviolet (UV) conversion. Nd:YVO4 (vanadate) lasers are good candidates for high power application... | 10/12/2010 |
| 7796660 | Three-dimensional photonic crystal light emitting device The three-dimensional photonic crystal light emitting device includes a three-dimensional photonic crystal, and a defect forming a resonator in the three-dimensional photonic crystal. In the three-dimensional photonic crystal, an N-cladding layer formed of an N-type... | 09/14/2010 |
| 7792168 | Heat capacity laser and associated lasing medium A heat capacity laser having a solid lasing medium, at least one pumping source that is able to emit a pumping radiation, and an optical cavity that can be characterized by having: at least one device able to homogenize the pumping radiation, a doped lasing medium h... | 09/07/2010 |
| 7756175 | Pumped semiconductor laser systems and methods A method for emitting laser radiation includes: emitting first laser radiation using a first laser, wherein said first laser is a laser diode; receiving the first laser radiation by a second laser comprising CdSe(1-x)Sx (cadmium selenium sulfid... | 07/13/2010 |
| 7720121 | Laser with highly efficient gain medium High-power, diode-pumped solid state (DPSS) pulsed lasers are preferred for applications such as micromachining, via drilling of integrated circuits, and ultraviolet (UV) conversion. Nd:YVO4 (vanadate) lasers are good candidates for high power application... | 05/18/2010 |
| 7675953 | Method and device for producing laser used directly as a frequency standard of optical frequency The present invention provides a method for producing laser used directly as a frequency standard of optical frequency, comprising: a collimated atomic beam used as laser gain medium; the laser gain medium being put in vacuum; before the particles of the laser gain ... | 03/09/2010 |
| 7675952 | Articulated glaze cladding for laser components and method of encapsulation A glaze encapsulated solid-state laser component. The novel laser component includes a core and a cladding of ceramic glaze disposed on a surface of the core. In an illustrative embodiment, the core is fabricated from a laser gain medium and the cladding material is... | 03/09/2010 |
| 7633981 | Reverse oxidation post-growth process for tailored gain profile in solid-state devices A laser rod is provided having a tailored gain profile such that the quality of the output beam is enhanced. The laser rod has a concentration of active substitutional ions that is relatively high at the center of the rod and decreases to the surface of the rod. The... | 12/15/2009 |
| 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 in the same element and also can apply an electric field uniformly in... | 06/09/2009 |
| 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 current excitation comprising a light-emitting element having a lamina... | 04/21/2009 |
| 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 second conductivity type formed on the active layer; and a second clad... | 04/21/2009 |
| 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 beam incidence angles at total internal reflection that alleviate need ... | 03/17/2009 |
| 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 for recording media with high capacity. The nitride semiconductor lase... | 02/24/2009 |
| 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 hollow portion of a non-doped ceramic pipe that has a crystal structure t... | 02/24/2009 |
| 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 mounting systems may include adjustability and alignment features specifical... | 12/16/2008 |
| 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 ceramic laser gain media and by bonding such edges using a substantia... | 12/09/2008 |
| 7460574 | Cr-doped laser materials and lasers and methods of making and using A laser medium includes a single crystal of chromium-doped LiScl-xInxGe1-ySiyO4, where 0≦x≦1 and 0≦y≦1. Preferably, x and y are not both 0. A laser, such as a tunable near infrared laser, can contain the... | 12/02/2008 |
| 7439530 | 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 first axis; a drive laser redirecting mechanism transferring the drive la... | 10/21/2008 |
| 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 refractive index of the coating material being higher than a refractive... | 08/05/2008 |
| 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 pump beam, and a second face met as second by the pump beam, a pumpi... | 07/08/2008 |
| 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 the layer absorbs light outside the laser... | 06/24/2008 |
| 7372886 | High thermal conductivity vertical cavity surface emitting laser (VCSEL) A light generating device such as a VCSEL includes a light generation layer, a top reflector, a bottom reflector, and a high thermal conductivity (HTC) layer between the light generation layer and the bottom reflector. The light generation layer is adapted to genera... | 05/13/2008 |
| 7366211 | 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 a solid-state element containing active laser ion within the volume. A cooling fluid flo... | 04/29/2008 |
| 7361978 | Laser diode packaging A laser diode package includes a heat sink, a laser diode, and an electrically nonconductive (i.e. insulative) substrate. The laser diode has an emitting surface and a reflective surface opposing the emitting surface. The laser diode further has first and second sid... | 04/22/2008 |
| 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 bottom surface of the semiconductor laser chip. The semiconductor laser ch... | 04/15/2008 |
| 7359415 | Cr-doped mixed alloy laser materials and lasers and methods using the materials A laser medium includes a single crystal of Cr4+:Mg2-xMxSi1-yAyO4, where, where M is a bivalent ion having an ionic radius larger than Mg2+, and A is a tetravalent ion having an ionic radiu... | 04/15/2008 |
| 7359598 | Surface plasmon optic devices and radiating surface plasmon sources for photolithography Disclosed is a surface plasmon optic device that has a periodic array of apertures in a dielectric substrate and a metal film formed on the dielectric substrate and emits light from metal-air interface. The surface plasmon optic device includes a surface plasmon gen... | 04/15/2008 |
| 7352790 | Method and apparatus for producing an eye-safe laser A lasing apparatus includes a laser medium and a pump source. The laser medium includes one of a Holmium-doped fluoride crystal or a Holmium-doped fluorozirconate ZBLAN glass fiber. The pump source generates pulses that resonantly pump the laser medium such that the... | 04/01/2008 |
| 7349616 | Fiber optic local convergence points for multiple dwelling units There are provided fiber optic local convergence points (“LCPs”) adapted for use with multiple dwelling units (“MDUs”) that facilitate relatively easy installation and/or optical connectivity to a relatively large number of subscribers. The LCP includes a ho... | 03/25/2008 |
| 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 at these locations. This is achieved by providing said regions with a... | 03/25/2008 |
| 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 solid-state laser medium 1, a light source 2 for pum... | 02/26/2008 |
| 7335921 | Lighting devices using feedback enhanced light emitting diode Lighting devices using feedback-enhanced luminescent devices are disclosed. A light emitting diode disposed between feedback elements (FE-LED) may be used as a light emitting element in the lighting devices. The light emitting element may be coupled to a light distr... | 02/26/2008 |
| 7335908 | Nanostructures and methods for manufacturing the same A resonant tunneling diode, and other one dimensional electronic, photonic structures, and electromechanical MEMS devices, are formed as a heterostructure in a nanowhisker by forming length segments of the whisker with different materials having different band gaps.... | 02/26/2008 |
| 7336686 | Laser display apparatus Provided is a laser display apparatus in which speckle can be suppressed. The laser display apparatus includes: a laser comprising a first mirror and a second mirror that are separated by a cavity distance and form a cavity; and a spatial modulator modulating light ... | 02/26/2008 |
| 7333263 | Transition metal doped fiber amplifier An optical amplifier includes an optical fiber having a core doped with transition metal ions, and at least one glass cladding enclosing the core. By using the fiber, the optical amplifier of the invention has a gain bandwidth of more than 300 nm including 1300-1600... | 02/19/2008 |
| 7324719 | Method tuning optical components integrated in a monolithic photonic integrated circuit (PIC) A method of tuning optical components integrated on a monolithic semiconductor chip having a plurality of first optical components integrated on the chip with each fabricated to approximate an emission wavelength along a given wavelength grid and together forming a ... | 01/29/2008 |
| 7318966 | Luminescent element material and luminescent element comprising the same A light emitting device includes an emissive substance between an anode and cathode that emits light upon application of electrical energy. The emissive substance included in the device is at least one of the following types of compounds: (a) a compound having a plu... | 01/15/2008 |
| 7319709 | Creating photon atoms A narrow linewidth fluorescent emitter can incorporate a chromophore into a microcavity that can support low-order optical modes. ... | 01/15/2008 |
| 7317741 | Amplified spontaneous emission ducts Amplified spontaneous emission (ASE) ducts are disclosed for use with various gain media. An ASE duct may be configured and arranged to remove ASE from solid state or liquid gain media and transmit the ASE to an exterior optical medium. The refractive index of an AS... | 01/08/2008 |
