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| Number | Title | Issue Date |
| 7773641 | Optically pumped disk-type solid state laser oscillator and optically pumped disk-type solid state laser system An optically pumped disk type solid state laser oscillator includes: a cylindrical shape thin film laser gain medium having a through-hole; a ring mirror whose surface is opposing to a side surface of the thin film laser gain medium; a conical mirror arranged in the... | 08/10/2010 |
| 7505487 | Laser oscillator including phosphorescent material To provide a laser oscillator that has an oscillation wavelength in a visible region, and can enhance a conversion efficiency of photon output, and further suppress power consumption. The laser oscillator comprises a light emitting element formed on a substrate, and... | 03/17/2009 |
| 7440479 | Magneto-optoelectronic switch and sensor A Magneto-Optoelectronic Device MOD (10) includes a magnetic sensing device (12), such as a magnetoresistive device or a magnetic tunnel junction device, that is combined with a semiconductor light emitter (14), such as a LED or a laser diode, t... | 10/21/2008 |
| 7366385 | Tunable fiber amplifier and laser The present invention has a core and at least one cladding, where, by changing the temperature of the cladding, the material dispersion characteristic of the cladding is changed and a refractive index is varied to make fundamental-mode cutoff tunable as well; and th... | 04/29/2008 |
| 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 |
| 7352949 | Fiber used in wideband amplified spontaneous emission light source and the method of making the same The present invention relates to a fiber having a core of crystal fiber doped with chromium and a glass cladding. The fiber has a gain bandwidth of more than 300 nm including 1.3 mm to 1.6 mm in optical communication, and can be used as light source, optical amplifi... | 04/01/2008 |
| 7295580 | Numerical aperture optimization using doped cladding layers A method and apparatus for optimizing the numerical aperture (NA) of a laser active core. The laser active core comprises at least a first and second cladding pair. The first and second cladding pair have at least one NA value. At least one of the first and second c... | 11/13/2007 |
| 7217585 | Method for fabricating and using a light waveguide A waveguide is fabricated by first preparing two waveguide precursor pieces. Each waveguide precursor piece includes a single-crystal substrate, and an epitaxial coating layer of an oxide coating material on the substrate. The oxide substrate material preferably com... | 05/15/2007 |
| 7147937 | Organic element for electroluminescent devices Disclosed is an electroluminescent device comprising a light-emitting layer including a light emitting material that contains an organometallic complex comprising (1) a metal selected from the group consisting of Ir, Rh, Os, Pt, and Pd and (2) a diazole group ligand... | 12/12/2006 |
| 7130111 | Optical amplifier with transverse pump An optical amplifier comprises a device substrate, a first waveguide embedded in the device substrate, and a plurality of lasers. The lasers are positioned to provide a first plurality of light beams substantially transverse to the first waveguide. ... | 10/31/2006 |
| 7127145 | Semiconductor optical amplifier, and optical module using the same The present invention provides a polarization dependency-free, gain-saturated high function semiconductor optical amplifier and optical module at industrially low cost. The gist of the present invention is to structurally separate the optical signal propagating wave... | 10/24/2006 |
| 7098063 | Semiconductor laser device and method of manufacturing the same A semiconductor laser device comprises: a first light-emitting element having a first laser part, an insulating layer, and an ohmic electrode layer; and a second light-emitting element having a second laser part, an insulating layer, and an ohmic electrode layer. Th... | 08/29/2006 |
| 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 generated due to scanning while irradiating with a linear laser beam of th... | 08/22/2006 |
| 7081871 | Light-emitting device having a plurality of emission layers A light-emitting device including a plurality of emission layers, which has improved luminous efficiency and improved emission lifetime, is provided. In the light-emitting device, a first optical film thickness range L1 from a light-emitting position of a... | 07/25/2006 |
| 7045952 | OLEDs with mixed host emissive layer An organic light emitting device is provided. The devices of the present invention comprise an emissive region having at least two emissive layers, with at least one layer comprising a first host and another layer comprising a first and a second host, and each layer... | 05/16/2006 |
| 7042916 | Method for adjusting the output spectrum of a multi-output-wavelength Raman laser A method for adjusting the relative output power of individual output wavelengths of a multi-output-wavelength Raman laser (10) is disclosed. The method is characterized by the steps of suppressing the relative output power of a potentially most powerful outp... | 05/09/2006 |
| 7009679 | Chiral boardband tuning apparatus and method A chiral structure having an expanded adjustable reflection band to provide broadband tunability is provided. In the preferred embodiment, the chiral structure is implemented as a chiral fiber structure and comprises two or more sequential chiral fiber elements of d... | 03/07/2006 |
| 6970494 | Rare-earth doped phosphate-glass lasers and associated methods Apparatus and method for integrating lasers and optics on glass substrates. An optical (e.g., laser) component formed from a glass substrate doped with a optically active lanthanides species with a plurality of waveguides defined by channels within the substrate. Th... | 11/29/2005 |
| 6959127 | Optical device An optical device is provided including an optically localising region comprising a first region having a first refractive index and an array of sub-regions having a second refractive index, the sub-regions in the array positioned at each of the vertices of the tria... | 10/25/2005 |
| 6954564 | Apparatus and method for integrated photonic devices having high-performance waveguides and multicompositional substrates An integrated photonic apparatus that includes a glass substrate having a major surface, wherein the glass substrate includes a plurality of regions, each region having a different index of refraction, including a first region having a first index of refraction and ... | 10/11/2005 |
| 6944386 | Optical devices There is disclosed an improved optical device (110), such as a laser, modulator, amplifier, switch, ore the like. The invention provides an optically active device (110) comprising: an optically active region (150) having an input/output end ( | 09/13/2005 |
| 6944195 | 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 generated due to scanning while irradiating with a linear laser beam of th... | 09/13/2005 |
| 6936716 | Organometallic complex for organic electroluminescent device An organometallic complex having formula (I) wherein M is a transition metal; each A1 and A2 is independently a monodentate ligand, or A1 and A2 are c... | 08/30/2005 |
| 6931033 | Pump source for lasers This invention relates to the field of lasers and in particular to the pump sources used in lasers. Many existing lasers use linear flashlamps in order to create population inversion in the gain medium of the laser. Such pump sources suffer from a number of drawback... | 08/16/2005 |
| 6904069 | Parasitic oscillation suppression in solid state lasers using optical coatings A laser gain medium having a layered coating on at least certain surfaces of the laser gain medium. The layered coating having a reflective inner material and an absorptive scattering outside material. ... | 06/07/2005 |
| 6901086 | Stack-type diode laser device Two thin-clad laser diodes are disposed to form a stack-type device that emits two beams. The beams are substantially parallel and in proximity such that they share many fiberoptic systems designed for a single beam. In one embodiment the device functions as a dual-... | 05/31/2005 |
| 6888667 | Method and apparatus for silicon-based optically-pumped amplification using stimulated scattering A semiconductor-based optical amplifier using optically-pumped stimulated scattering includes an optical signal source (pump) and a wavelength selective coupler. The coupler is connected to receive an input optical signal and the pump signal and output the combined ... | 05/03/2005 |
| 6872471 | Infrared emitting electroluminescent and photoluminescent devices The present invention includes infrared emitting materials and infrared emitting devices. The present invention demonstrates 1.54 micron infrared PL and EL emission from an organic complex. This provides a very simple way to obtain a light source at 1.54 micron wave... | 03/29/2005 |
| 6862394 | Wavelength tunable laser and method of formation A method of increasing the monomolecular recombination and the immunity to noise of a continuously tunable laser is disclosed. A concentration of recombination centers in the range of about 1×1016 cm−3 to about 1×1018 cm−3... | 03/01/2005 |
| 6798816 | Folded tapered-waveguide CO2 laser A folded waveguide CO2 laser includes a plurality of waveguides arranged in a zigzag pattern with ends thereof overlapping. The laser includes a resonator having an axis extending through the plurality of waveguides. At least a portion of at least one of ... | 09/28/2004 |
| 6778563 | Q-switched laser A microchip laser arrangement is disclosed. The arrangement is operative to emit Q-switched laser pulses at 1.54 μm. The lasing medium of the laser arrangement is preferably comprised of Yb:Er-glass, and the Q-switch is comprised of a saturable absorber of cobalt d... | 08/17/2004 |
| 6687266 | Organic light emitting materials and devices An organic light emitting device is provided. The device includes an anode, a cathode, and an emissive layer disposed between the anode and the cathode. The emissive layer includes material having the structure: ##STR1## M is a metal having an atomic weig... | 02/03/2004 |
| 6636344 | Raman amplifier, optical repeater, and raman amplification method A Raman amplifier according to the present invention comprises a plurality of pumping means using semiconductor lasers of Fabry-Perot, DFB, or DBR type or MOPAs, and pumping lights outputted from the pumping means have different central wavelengths, and i... | 10/21/2003 |
| 6574249 | Thin film laser emitting device and method for the manufacture thereof A thin film laser emitting device includes a Bragg reflector including a recess and one or more diffraction gratings provided around the recess, a thin film laser layer formed in the recess, for generating lights, the lights being reflected by the diffrac... | 06/03/2003 |
| 6535535 | 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 generated due to scanning while irradiating with a linear laser... | 03/18/2003 |
| 6420197 | Semiconductor device and method of fabricating the same A semiconductor device comprises a substrate having a first thermal expansion coefficient T1, a strain reducing layer formed on the substrate and having a second thermal expansion coefficient T2, and a semiconductor layer formed on the strain reducing lay... | 07/16/2002 |
| 6392256 | Closely-spaced VCSEL and photodetector for applications requiring their independent operation A monolithically integrated VCSEL and photodetector, and a method of manufacturing the same, are disclosed for applications where the VCSEL and photodetector require separate operation such as duplex serial data communications applications. A first embodi... | 05/21/2002 |
| 6370165 | Diamond coatings deposited on WC-Co substrate by multiple laser A diamond coating formed on a WC--Co substrate prepared through a process including employing a plasma and a variety of interactions from a multiple laser system demonstrates exceptional adhesion and indicates a durable cubic diamond structure. The coatin... | 04/09/2002 |
| 6348703 | Epitaxial wafer for infrared light-emitting device and light-emitting device using the same The present invention provides an epitaxial wafer comprising, on a p-type GaAs single-crystal substrate, a first p-type layer; a p-type cladding layer; a p-type active layer; and an n-type cladding layer, wherein the n-type cladding layer has a carrier co... | 02/19/2002 |
| 6324195 | Laser processing of a thin film Method and apparatus for processing a workpiece having a thin film layer using laser pulses generated by a plurality of lasers. The lasers are equipped with Q-switches and triggered by a Q-switch trigger device at controlled pulse frequencies and delays w... | 11/27/2001 |
