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| Number | Title | Issue Date |
| 8135052 | Flexible microcavity structure made of organic materials using spin-coating technique and method of making A flexible microcavity structure made of organic materials using spin-coating technique for allowing large area structures using a roll-to-roll process. The structure includes at least one first polymer layer, at least one second polymer layer, and a cavity layer. T... | 03/13/2012 |
| 8107508 | External cavity laser light source Provided is an external cavity laser light source. The light source includes a substrate, an optical waveguide, and a current blocking layer. The optical waveguide includes a passive waveguide layer, a lower clad layer, an active layer, and an upper clad layer that ... | 01/31/2012 |
| 8059692 | Laser oscillator The present invention provides a laser oscillator using an electroluminescent material that can enhance directivity of emitted laser light and resistance to a physical impact. The laser oscillator has a first layer including a concave portion, a second layer formed ... | 11/15/2011 |
| 7949031 | Optoelectronic systems providing high-power high-brightness laser light based on field coupled arrays, bars and stacks of semicondutor diode lasers A semiconductor diode laser having a broad vertical waveguide and a broad lateral waveguide is disclosed emitting laser-light in a single vertical mode and a single lateral mode narrow beam. The vertical waveguide comprises a coupled cavity structure, wherein light,... | 05/24/2011 |
| 7936802 | Co-extruded multilayer polymers films for all-polymer lasers A polymer film laser is provided that comprises a plurality of extruded polymer layers. The plurality of extruded polymer layers comprises a plurality of alternating dielectric layers of a first polymer material having a first refractive index and a second polymer m... | 05/03/2011 |
| 7813405 | Unstable disk resonator A configuration for an unstable, negative branch imaging resonator (NBIR) is disclosed in which coupling mirrors are added so that the Primary and Secondary mirrors are not in direct optical communication with the imaging systems which minimizes the occurrence of th... | 10/12/2010 |
| 7796671 | Multi-pass optical power amplifier Anisotropic crystals such as Nd:YVO4, Nd:YLF, and Nd:GdVO4 have become preferred gain materials for many laser applications. The anisotropic gain medium without ancillary compensation ensures there is no degradation of laser modes when passing ... | 09/14/2010 |
| 7769071 | Silica sol gel micro-laser on a substrate Silica sol gel micro-lasers and methods of fabricating micro-lasers on a chip or a wafer. A silica sol gel micro-laser includes a silica sol gel optical micro-cavity, a substrate, and a support member or pillar that extends between the micro-cavity and the substrate... | 08/03/2010 |
| 7724801 | Stable/unstable optical cavity resonator for laser An improved resonator and optical cavity is adapted for use with a chemical laser that has a nozzle upstream of the resonator that emits a gain medium in a flow direction, and a pressure-recovery system downstream of the resonator. The optical resonator comprises fi... | 05/25/2010 |
| 7675958 | Intra-cavity non-degenerate laguerre mode generator A lasing method including the steps of providing a laser resonator; utilizing birefringence compensation in said resonator whereby said resonator is induced to operate in a Laguerre-Gaussian higher order mode; and utilizing polarized outcoupling of lasing energy at ... | 03/09/2010 |
| 7609743 | Volume Bragg lasers based on high efficiency diffractive elements in photo-thermo-refractive glass A volume Bragg laser including a resonator comprising photo-thermo-refractive (PTR) volume diffractive elements that can be used in a laser emitting window of transparency of PTR glass to provide control of the lasers spectral and angular parameters, and methods, de... | 10/27/2009 |
| 7580441 | Athermal external cavity laser Provided is an athermal external cavity laser (ECL), whose output optical power and output wavelength can be kept regular irrespective of temperature changes without using additional temperature controlling components. The ECL comprises: a semiconductor amplifier; a... | 08/25/2009 |
| 7545843 | Ultra-high Q micro-resonator and method of fabrication A micro-cavity resonator including a micro-cavity capable of high and ultra-high Q values and a silicon substrate. Portions of the silicon substrate located below a periphery of the micro-cavity are removed to form a pillar, which supports the micro-cavity. Optical ... | 06/09/2009 |
| 7508858 | Detuned duo-cavity laser-modulator device and method with detuning selected to minimize change in reflectivity A detuned duo-cavity laser-modulator device and method are provided which include lower, middle and upper reflectors, a gain region and an absorber region integrated into a semiconductor die. The middle reflector is disposed between the lower and upper reflectors. T... | 03/24/2009 |
| 7440483 | Cascaded injection resonator for coherent beam combining of laser arrays The invention provides a cascaded injection resonator for coherent beam combining of laser arrays. The resonator comprises a plurality of laser emitters arranged along at least one plane and a beam sampler for reflecting at least a portion of each laser beam that im... | 10/21/2008 |
| 7440643 | Variable light controlling device and variable light controlling method A variable light controlling device comprising a substrate, an optical waveguide disposed on the substrate, a first heater and a second heater to change the optical waveguide's temperature is fabricated. And a total amount of the power supplied to the first and the ... | 10/21/2008 |
| 7436873 | Optical device and semiconductor laser oscillator In an optical device, a slab layer includes an active layer sandwiched between cladding layers. The slab layer has a periodic refractive index profile structure in a two-dimensional plane, as a two-dimensional slab photonic crystal structure, and a linear defect reg... | 10/14/2008 |
| 7433381 | InP based long wavelength VCSEL A long wavelength vertical cavity surface emitting laser having a substrate, a first mirror situated on the substrate, an active region situated on the first mirror, a second mirror situated on the active region. The first mirror may have several pairs of layers wit... | 10/07/2008 |
| 7430039 | Sensor Sensors are provided which enable detection with a high sensitivity in microchemistry and biochemical analysis by using devices integrated into a compact configuration and can be freely disposed on desired positions of a channel to perform detection. A measur... | 09/30/2008 |
| 7425726 | Electroabsorption modulators and methods of making the same Electro-absorption modulators and methods of making the same are described. In one aspect, an electroabsorption modulator includes first and second electrodes, first and second cladding regions, an active region, and a tunnel junction structure. The first and second... | 09/16/2008 |
| 7415058 | Ultra-high-Q surface-tension-induced monolithically integrated on-chip resonator and associated devices A resonator structure includes a substrate and a cladding layer formed on the substrate. A plurality of lens-shaped optical structures is formed on the cladding layer. The lens-shaped optical structures comprise chacolgenide glass being exposed to a reflow process s... | 08/19/2008 |
| 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 |
| 7397828 | Laser system with multiple wavelength diode pump head and associated method A laser system comprises a reflective chamber capable of housing a laser medium and at least two laser diodes emitting light at different respective wavelengths into the reflective chamber. The wavelength of each respective laser diode may be selected to minimize fl... | 07/08/2008 |
| 7391801 | Electrically pumped Group IV semiconductor micro-ring laser An electrically pumped semiconductor laser is provided as including a waveguide structure disposed on the substrate. An optical coupling layer is disposed on the substrate and the waveguide. A resonator layer is disposed on the optical coupling layer and may be adap... | 06/24/2008 |
| 7386205 | Optical device and method for making same The present invention is directed to a device for reflecting a select polarization of at least one transmission having a given wavelength impinging upon the device. The device includes a substrate and a layer of nanostructures. The nanostructures form a resonant pat... | 06/10/2008 |
| 7376168 | Semiconductor laser device The invention relates to a semiconductor laser device, including a semiconductor laser element, or a number of individual lasers mounted parallel to each other, with a number of output surfaces, from which laser light can escape, having a treater divergence in a fir... | 05/20/2008 |
| 7376160 | Slab laser and method with improved and directionally homogenized beam quality A laser resonator for generating a laser beam having beam quality along two transverse axes that is determined primarily by the mode discrimination characteristics of one axis. The apparatus including a means for providing a collimated beam of electromagnetic energy... | 05/20/2008 |
| 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 |
| 7365369 | Nitride semiconductor device A nitride semiconductor device used chiefly as an LD and an LED element. In order to improve the output and to decrease Vf, the device is given either a three-layer structure in which a nitride semiconductor layer doped with n-type impurities serving as an n-type co... | 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 |
| 7359413 | Diamond-cooled solid-state laser A diode-pumped solid state laser, e.g., in a side-pumped or end-pumped configuration, including a lasing medium (30, 40, 62) comprising at least one surface (41) through which the laser is pumped, and at least one diamond plate (32, 42, 64) in t... | 04/15/2008 |
| 7359589 | Coupling electromagnetic wave through microcircuit A device includes a waveguide layer formed on a substrate. An ultra-small resonant structure emits electromagnetic radiation (EMR) in the waveguide layer. One or more circuits are formed on the waveguide layer and each operatively connected thereto to receive the EM... | 04/15/2008 |
| 7359421 | Red light laser A semiconductor material vertical cavity surface emitting laser for emitting narrow linewidth light comprising a compound semiconductor material substrate and pairs of semiconductor material layers in a first mirror structure on the substrate of a first conductivity... | 04/15/2008 |
| 7359606 | Photonic crystal optical circuit and method for controlling the same In an optical circuit including multi-dimensional photonic crystals, in which the optical circuit has a structure (33), such as a light emitting member or a light receiving member, having a natural resonance frequency, another structure (34) having a n... | 04/15/2008 |
| 7359422 | Semiconductor laser device and illumination apparatus A semiconductor laser device is provided, which comprises a semiconductor laser element having a light emission surface, a reflective member having a reflective surface, and a light diffusing member provided between the light emission surface and the reflective surf... | 04/15/2008 |
| 7359423 | Distributed feedback laser diode A semiconductor laser includes an active layer on an n-type InP substrate. A diffraction grating and a p-type InP cladding layer are above the active layer. The diffraction grating has at least one phase shift portion. Facets of the distributed feedback laser each h... | 04/15/2008 |
| 7355657 | Laser illuminated projection displays A projection video display includes a light source including an OPS-laser delivering laser radiation in multiple transverse modes (a multiple-transverse-mode OPS-laser). The display includes a spatial light modulator for spatially modulating the radiation from the m... | 04/08/2008 |
| 7356066 | Solid state laser A solid body laser has a crystal disk forming its laser active medium. A flat side of the crystal disk is totally reflecting. A resonator mirror configuration includes a partially transparent end mirror and one or more folding mirrors, which are disposed with spatia... | 04/08/2008 |
| 7356064 | Polarization switching and control in vertical cavity surface emitting lasers A fast current-controlled polarization switching VCSEL with two independent intra-cavity p-contact electrodes and two independent intra-cavity n-contact electrodes positioned along the four sides of the symmetric aperture such that there are two independent p- and n... | 04/08/2008 |
| 7352941 | Method and apparatus for electromagnetic resonance and amplification using negative index material An electromagnetic resonance device includes an input reflector, an output reflector, and a negative index material (NIM) disposed between the input reflector and the output reflector. The input reflector and output reflector are configured to be reflective to radia... | 04/01/2008 |
