Quotables
"To place a man in a multi-stage rocket and project him into the controlling gravitational field of the moon where the passengers can make scientific observations, perhaps land alive, and then return to earth--all that constitutes a wild dream worthy of Jules Verne. I am bold enough to say that such a man-made voyage will never occur regardless of all future advances."
Lee deForest, American radio pioneer ; 1957
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| Number | Title | Issue Date |
| 7649923 | Method for manufacturing nitride semiconductor laser element, and nitride semiconductor laser element A method for manufacturing a nitride semiconductor laser element, equipped with a laminate that has a first conductivity type nitride semiconductor layer, an active layer, and a second conductivity type nitride semiconductor layer on a substrate, and constitutes a r... | 01/19/2010 |
| 7443900 | Laser gain medium for solid state dye lasers The present invention relates to a laser gain medium comprising at least one active species adapted to be stimulated to emit laser light within a predetermined wavelength range and optical feedback means defining a resonator for said laser light. The feedback means ... | 10/28/2008 |
| 7318855 | Gas/liquid separation utilizing structured separator material An apparatus and method for gas/liquid separation on an array of jets or streams of liquid is provided. Layers of structured packing material are configured to “quiet” high-velocity liquid flow with entrained gas to provide a flow at moderate or low velocity fro... | 01/15/2008 |
| 7300808 | Optically pumped, surface-emitting semiconductor laser device and method for the manufacture thereof The invention is directed to an optically pumped surface-emitting semiconductor laser device having at least one radiation-generating quantum well structure and at least one pump radiation source for optically pumping the quantum well structure, whereby the pump rad... | 11/27/2007 |
| 7245643 | Semiconductor laser module and method of manufacturing the same A semiconductor laser module according to the present invention includes a polarization-synthesizing module having a polarization-synthesizing means configured to polarization synthesize two laser beams and a holder member for holding the polarization-synthesizing m... | 07/17/2007 |
| 7242701 | Laser wavelength control arrangement and method Wavelength control and stabilization of a laser is achieved by a practical, inexpensive, and accurate technique adapted for most optical transmission system applications by a method involving a laser characterization phase and a laser wavelength control and stabiliz... | 07/10/2007 |
| 7238543 | Methods for marking a bare semiconductor die including applying a tape having energy-markable properties A method used for marking a semiconductor wafer or device. The method and apparatus have particular application to wafers or devices which have been subjected to a thinning process, including backgrinding in particular. The present method comprises reducing the cros... | 07/03/2007 |
| 7233610 | Nitride based semiconductor laser diode device with a bar mask A nitride based semiconductor laser diode device comprising a selective growth mask with a grating structure is proposed. The island-like stacked epitaxial layers including the P-type cladding layer is formed from the selective growth mask upon the active layer of t... | 06/19/2007 |
| 7224532 | Optical uses diamondoid-containing materials Novel optical devices based on diamondoid-containing materials are disclosed. Materials that may be fabricated from diamondoids included diamondoid nucleated CVD films, diamondoid-containing CVD films, molecular crystals, and polymerized materials. Devices that may ... | 05/29/2007 |
| 7218657 | Optical transmitting module having a can type package and providing a temperature sensor therein The present invention provides an optical transmitting module capable of outputting a signal for precisely controlling bias and modulation current, and a transmitting optical sub-assembly using the same. The optical transmitting module of the invention builds a semi... | 05/15/2007 |
| 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 system, utilizing a partitioned monolithic gain element. The monolithic ga... | 05/08/2007 |
| 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 surface region at one end to scatter barrelling ASE out of the gain medi... | 01/09/2007 |
| 7126972 | Nitride based semiconductor laser diode device with a bar mask A nitride based semiconductor laser diode device comprising a selective growth mask with a grating structure is proposed. The island-like stacked epitaxial layers including the P-type cladding layer is formed from the selective growth mask upon the active layer of t... | 10/24/2006 |
| 7097354 | Method of determining the temperature in a system comprising a molecular heater fraction and a molecular thermometer fraction The present invention is related to a method of determining the temperature in a system, said system comprising a molecular heater fraction and a molecular thermometer fraction, and to an integrated system for temperature determination and temporally and spatially r... | 08/29/2006 |
| 7094618 | Methods for marking a packaged semiconductor die including applying tape and subsequently marking the tape The present invention provides a method and apparatus for marking a semiconductor wafer or device. The method and apparatus have particular application to wafers or devices which have been subjected to a thinning process, including backgrinding in particular. The pr... | 08/22/2006 |
| 7063524 | Apparatus for increased dimensional accuracy of 3-D object creation A stereolithographic (STL) apparatus for forming structures such as semiconductor die packages is described which uses a laser beam focused to a generally annular “spot” having an annulus of enhanced laser power surrounding a central “hole” of reduced (or no... | 06/20/2006 |
| 6967980 | Optical semiconductor module A semiconductor laser diode, in which an active layer is formed close to a bottom surface thereof, is fixed to a top surface of a substrate by means of solder layers in such a condition that the bottom surface of the semiconductor laser diode faces the top surface o... | 11/22/2005 |
| 6954479 | Optically pumped, surface-emitting semiconductor laser device and method for the manufacture thereof The invention is directed to an optically pumped surface-emitting semiconductor laser device having at least one radiation-generating quantum well structure and at least one pump radiation source for optically pumping the quantum well structure, whereby the pump rad... | 10/11/2005 |
| 6949632 | Fluorogenic substrates The subject invention provides compounds useful as fluorogenic substrates for the hydrolytic enzymes. Upon hydrolysis of the hydrolyzable group, a halo-pyrene substituted molecule is developed which is highly fluorescent, water soluble and exhibits several desirable... | 09/27/2005 |
| 6944197 | Low crosstalk optical gain medium and method for forming same An optical gain medium, and a method for forming the same, is provided that exhibits lower wavelength crosstalk when configured as an optical amplifier than prior art optical gain media. The optical gain medium of the present invention includes a buried heterostruct... | 09/13/2005 |
| 6914926 | High average power laser gain medium with low optical distortion using a transverse flowing liquid host A high average power, low optical distortion laser gain media is based on a flowing liquid media. A diode laser pumping device with tailored irradiance excites the laser active atom, ion or molecule within the liquid media. A laser active component of the liquid med... | 07/05/2005 |
| 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 in the VCSEL structure, forming a first passivation layer over a sur... | 03/01/2005 |
| 6862300 | High power semiconductor laser diode and method for making such a diode Semiconductor laser diodes, particularly high power ridge waveguide laser diodes, are often used in opto-electronics as so-called pump laser diodes for fiber amplifiers in optical communication lines. To provide the desired high power output and stability of such a ... | 03/01/2005 |
| 6858871 | Semiconductor device and manufacturing method therefor A red color laser diode 13 is die-bonded onto a silicon submount photodiode chip 11 having a insulating film 4 on the surface thereof. The silicon submount photodiode chip 11 receives a light beam radiated from a back side 13b | 02/22/2005 |
| 6821798 | Semiconductor optical device and method for fabricating same A monolithic semiconductor optical device with excellent temperature and modulation characteristics and associated method of manufacturing whereby the device has a semiconductor substrate, a semi-insulating buried heterostructure GaInAsP-based DFB laser; and either ... | 11/23/2004 |
| 6816531 | High-power, kink-free, single mode laser diodes A high power, single lateral mode semiconductor laser has a waveguide with regions of different widths coupled by a tapered region. The laser has a laterally confining optical waveguide having a highly reflecting first end and a second end. The optical waveguide has... | 11/09/2004 |
| 6810047 | Wavelength tunable external resonator laser using optical deflector The present invention relates to an optical deflector driven by an electrical signal, and a wavelength tunable external resonator using the same. The optical deflector of a triangle shape, capable of controlling the refractive index of a beam depending on the electr... | 10/26/2004 |
| 6775313 | Laser having a temperature controlled solid-state dye gain element A laser includes a first optically reflective element; a second optically reflective element opposed to and aligned with the first optically reflective element to define a laser cavity having an optical axis; an optical pump source for injecting optical pump energy ... | 08/10/2004 |
| 6765948 | VCSEL assembly with edge-receiving optical devices The present invention is directed to a method and system for conditioning the output signals of an array of surface-emitting lasers with an array of edge-receiving optical devices. Both the array of surface-emitting lasers and the array of edge-receiving optical dev... | 07/20/2004 |
| 6711191 | 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... | 03/23/2004 |
| 6678297 | Chiral laser utilizing a quarter wave plate The inventive chiral laser achieves lasing by placing an electro-luminescent emitting layer with quarter wave plate properties and a layer of cholesteric liquid crystal (CLC) between two electrodes. The electrode connected to the emitting layer is highly ... | 01/13/2004 |
| 6674783 | Distributed feedback type semiconductor laser device and method of manufacturing the same Disclosed are a gain coupled distributed feedback type semiconductor laser device which has a high single-mode yield and a smaller variation in the oscillation threshold current and luminous efficiency, and a method of manufacturing the same. The semicond... | 01/06/2004 |
| 6650681 | Sealed exhaust chemical oxygen-iodine laser system A sealed exhaust chemical oxygen-iodine laser (SECOIL) employing a sealed exhaust system (SES) is described. The SES is capable of selectively condensing and cryosorbing various chemical species contained in the laser-exhaust gas. Additionally, a condensa... | 11/18/2003 |
| 6621848 | SECOIL reprocessing system A sealed exhaust chemical oxygen-iodine laser system is described, wherein the sealed exhaust system includes an adsorption bed for adsorbing sorbable material contained in the laser exhaust gas, and a temperature control assembly for controlling the temp... | 09/16/2003 |
| 6570900 | Method and apparatus for replenishing dye solution in a dye laser In a dye laser system, a porous bed filter is loaded with dye prior to operation of the system. With repeated firings, the dye solution is filtered by the porous bed filter to remove by-products of the laser process. Solute concentration is monitored and ... | 05/27/2003 |
| 6556614 | Monolithic solid state laser assembly and method of manufacture A laser cavity assembly for high power optical range-finders consisting of two rods of lasing material co-axially mounted on a thin substrate of the same or thermally equivalent material, selected end-faces of the rods being bonded to layers or wafers of ... | 04/29/2003 |
| 6546038 | Semiconductor surface-emitting element A semiconductor surface-emitting element having a light-emitting portion and formed of a plurality of semiconductor layers including a plurality of light-generating layers of a quantum well structure for generating lights having respective different emiss... | 04/08/2003 |
| 6493365 | Passive thermal stabilization of the optical path length in a tunable laser The present invention provides an apparatus for passively stabilizing the optical pathlength in tunable lasers. Lasers stabilized using the passive stabilization apparatus exhibit reduced mode hop and increased wavelength stability during temperature vari... | 12/10/2002 |
| 6483861 | Silicon thin film structure for optoelectronic devices and method for fabricating the same Disclosed are a silicon thin film structure for optoelectronic devices and a method for manufacturing the same. The silicon thin film structure for optoelectronic devices, comprises a multi-layered structure consisting of a plurality of structural units, ... | 11/19/2002 |
| 6404789 | Chiral laser apparatus and method A chiral laser apparatus comprises a layered structure configured to produce a photonic stop band, the layered structure including a upper chiral material layer, a middle excitable light-emitting layer, and a lower chiral material layer and an excitation ... | 06/11/2002 |
