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| Number | Title | Issue Date |
| 7012946 | Photonic crystal-based resonant cavity and resonator A photonic crystal-based resonant cavity includes a first dielectric substance having a first dielectric permittivity, a plurality of second dielectric substances having a second dielectric permittivity and arranged in a first periodic structure with respect to at l... | 03/14/2006 |
| 7009750 | Apparatus and methods for modulating refractive index An iono-refractive structure that includes one or more ion insertion layers having a real portion and an imaginary portion of the dielectric constant is provided. While both the real portion and the imaginary portion of the dielectric constant change, the change in ... | 03/07/2006 |
| 7010012 | Method and apparatus for reducing specular reflections in semiconductor lasers The present invention is directed a method of fabricating a VCSEL. First, a substrate with a back surface and a front surface is provided. Then, a first reflector, an active region, and a second reflector are disposed on the front surface. The first reflector is dis... | 03/07/2006 |
| 7009716 | System for monitoring optical output/wavelength A system for monitoring an optical output/wavelength is employed to be used for a WDM system having a narrow channel space by structuring an etalon and photodiode as an integrated structure. The system includes: a laser source control unit for controlling the laser ... | 03/07/2006 |
| 7010286 | Apparatus, system, and method for down-converting and up-converting electromagnetic signals Methods, systems, and apparatuses for down-converting and up-converting an electromagnetic signal. In embodiments, the invention operates by receiving an electromagnetic signal and recursively operating on approximate half cycles of a carrier signal. The recursive o... | 03/07/2006 |
| 7006805 | Aliasing communication system with multi-mode and multi-band functionality and embodiments thereof, such as the family radio service A receiver having multi-mode and multi-band functionality and capabilities is described herein. The receiver is capable of selectively operating over a plurality of bands and channels. The receiver operates in a plurality of modes, including but not limited to a sin... | 02/28/2006 |
| 7006545 | Semiconductor laser device and optical fiber amplifier using the same A semiconductor laser device with an active layer having a multi-quantum well structure including more than one well layer and more than one barrier layer and having a cavity length of more than 800 μm is disclosed, wherein the active layer includes a doped region ... | 02/28/2006 |
| 7006541 | Absolute wavelength calibration of lithography laser using multiple element or tandem see through hollow cathode lamp A tunable laser system includes a gain medium and an optical resonator for generating a laser beam, and a spectral narrowing and tuning unit within the resonator. A detection and control unit controls a relative wavelength of the laser system. A wavelength calibrati... | 02/28/2006 |
| 7006726 | Method and apparatus for optical division of a broadband signal into a plurality of sub-band channels A data signal is modulated onto an optical carrier, sub-band channels are then removed therefrom by microresonators, and each data sub-band channel is then combined in a detector with a corresponding local oscillator optical signal removed by a microresonator from a... | 02/28/2006 |
| 7003185 | Resonant coupling of optical signals for out-of-plane transmission Optically resonant systems for redirecting optical signals are provided. A representative optically resonant system includes a first structure in a plane. The first structure reflects optical radiation in a first direction substantially orthogonal to the plane. The ... | 02/21/2006 |
| 7003005 | Simplified laser oscillator-amplifier system The present invention contemplates a simplified laser oscillator-amplifier system for deep UV generation. The simplified system employs same type of gain media in both the oscillator and the amplifier and utilizes a single pump pulse split to pump both the oscillato... | 02/21/2006 |
| 7003002 | Fiber-coupled microsphere Raman laser The present invention is a Raman laser and methods related thereto. In the preferred embodiments, the Raman laser comprises a laser pump signal in a fiber waveguide which is optically coupled to a micro-resonator through a fiber taper. The micro-resonator is constru... | 02/21/2006 |
| 6999483 | External 3rd, 4th and 5th harmonic laser The invention relates to an improved harmonic laser which provides an externally generated harmonic beam. According to the invention, a third harmonic laser or higher harmonic laser is provided. The laser includes a first reflector and a second reflector for fundame... | 02/14/2006 |
| 6998650 | Replaceable light emitting diode module A clip is used to clamp a LED in place in a LED module. The clip has pliable conducting cover and can be latched to the upper lead metal of the LED module. The clip can be lifted for replacing a defective or color LED. A plurality of replaceable LEDs can be mounted ... | 02/14/2006 |
| 6998620 | Stable energy detector for extreme ultraviolet radiation detection A detector for use with an EUV photon source emitting around 11-15 nm includes at least one multilayer mirror for reflecting the beam along an optical path include a detector element, a filter for reducing the bandwidth of the beam, and the detector element. The det... | 02/14/2006 |
| 6996316 | Large diameter D-shaped optical waveguide and coupler A large diameter D-shaped optical waveguide device 9, includes an optional circular waveguide portion 11 and a D-shaped waveguide portion 10 having at least one core 12 surrounded by a cladding 14. A portion of the waveguide device... | 02/07/2006 |
| 6996140 | Laser device for nonlinear conversion of light A laser apparatus for nonlinear conversion of light is disclosed utilizing a laser diode having a reflective back facet and a front facet having a reflectance of less than about 1% for emitting a multifrequency optical beam, and a nonlinear optical element for recei... | 02/07/2006 |
| 6995360 | Method and sensor for monitoring gas in a downhole environment A method of monitoring gas in a downhole environment is discussed which provides downhole a mid-infrared light emitting diode, operates the diode to transmit respective infrared signals on a first optical path extending from the diode through a downhole gas sample a... | 02/07/2006 |
| 6996139 | Integrated-optics coupling component, designed to adapt a light source to a guided optics element and power laser comprising same The integrated-optics coupling component is designed to cooperate with a transverse multimode power laser diode (2) with semi-conductor to form a transverse multimode power laser. It comprises an input zone (4) connected to at least one output waveguid... | 02/07/2006 |
| 6996152 | Photonic-crystal distributed-feedback and distributed bragg-reflector lasers A photonic-crystal distributed-feedback laser includes a laser cavity with a waveguide structure that has a cavity length Lc and is bounded by two mirrors; an active region for producing optical gain upon receiving optical pumping or an input voltage; at ... | 02/07/2006 |
| 6996151 | Tin oxide adhesion layer for metal-dielectric mirrors A mirror of known type comprises a stack of pairs of dielectric material layers of alternating high and low refractive indices and a metal layer, preferably gold, capping one end of the stack. For improvising the adherence of the metal layer to the stack, the metal ... | 02/07/2006 |
| 6993057 | Coarse spectrometer with a grating A quasi-monochromatic light beam carrier for a particular telecommunication channel is likely to experience drift because of age, temperature, or other factors, and may cause the centroid wavelength of the carrier to shift. Temperature adjustments by wavelength lock... | 01/31/2006 |
| 6990134 | GaN series surface-emitting laser diode having spacer for effective diffusion of holes between P-type electrode and active layer, and method for manufacturing the same A GaN series surface-emitting laser diode and a method for manufacturing the same are provided. The GaN series surface-emitting laser diode includes: an active layer; p-type and n-type material layers on the opposite sides of the active layer; a first-distributed Br... | 01/24/2006 |
| 6987914 | Optical filter having coupled whispering-gallery-mode resonators Optical filters having at least two coupled whispering-gallery-mode (WGM) optical resonators to produce a second order or higher order filter function with a desired spectral profile. At least one of the coupled WGM optical resonators may be tunable by a control sig... | 01/17/2006 |
| 6980578 | Optical bandpass filter using long period gratings The specification describes an optical filter wherein long period gratings (LPGs) are used in a new configuration to provide in-line bandpass filtering of optical signals. In the basic embodiment, two dissimilar LPGs are installed in the optical fiber transmission l... | 12/27/2005 |
| 6980570 | Solid laser apparatus A solid laser apparatus is provided comprising a semiconductor light emitter 1, an optical fiber 3 having a grating part 6 provided therein, and a wavelength converter 5 for receiving an input of light from an optical resonator composed o... | 12/27/2005 |
| 6978070 | Fiber incorporating quantum dots as programmable dopants A programmable dopant fiber includes a plurality of quantum structures formed on a fiber-shaped substrate, wherein the substrate includes one or more energy-carrying control paths (34), possibly surrounded by an insulator (35), which pass energy to qua... | 12/20/2005 |
| 6978067 | Horizontal access semiconductor photo detector A horizontal access semiconductor photo detector (2) comprises a horizontal light absorbing layer (8) for converting light into photo-current which layer is configured to confine light within it in whispering gallery modes of propagation. The detector ... | 12/20/2005 |
| 6973105 | Method and apparatus to enable adaptive equalization at high bandwidths when using single-mode VCSELs over multimode fibers A method and apparatus of using an input signal from a single-transverse mode vertical-cavity surface-emitting laser (VCSEL) with a multimode fiber (MMF) link to enable improved stabilization in time variation and improved modal dispersion of the output signal to fa... | 12/06/2005 |
| 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 connection, to achieve improved beam quality and increased efficiency of a dio... | 12/06/2005 |
| 6973115 | Passive Q-switched microlaser with controlled polarization This invention relates to a laser cavity with passive triggering by saturable absorbent and with controlled polarization, and to a laser and in particular to a microlaser containing the said cavity and means of pumping this cavity. The invention also relates ... | 12/06/2005 |
| 6973113 | Optically pumped semiconductor laser device An optically pumped semiconductor laser device having a substrate (1) having a first main area (2) and a second main area (3), with at least one pump laser (11) being arranged on the first main area (2). The semiconductor laser dev... | 12/06/2005 |
| 6970491 | Planar and wafer level packaging of semiconductor lasers and photo detectors for transmitter optical sub-assemblies A planar wafer-level packaging method is provided for a laser and a monitor photo detector. The laser and photo detector are affixed to a planar substrate. The planar substrate provides electrical connections to the components. A lens cap with a microlens is formed ... | 11/29/2005 |
| 6970492 | DUV and VUV laser with on-line pulse energy monitor A beam parameter monitoring unit for coupling with an excimer or molecular fluorine (F2) laser resonator that produces an output beam having a wavelength below 200 nm includes an on-line laser pulse energy detector. This, in turn, allows output pulse ener... | 11/29/2005 |
| 6970619 | Mechanically tunable optical devices such as interferometers An optical device has at least one waveguide with at least one adjacent resonator, where the distance between the resonator and the waveguide can be controllably adjusted to change the optical coupling between the resonator and the waveguide. When implemented as par... | 11/29/2005 |
| 6970493 | Diode-pumped laser with funnel-coupled pump source An optically pumped laser has a gain medium positioned inside of an optical resonator cavity and disposed about a resonator optical axis. An optical pumping source is positioned outside of the optical resonator cavity. A reflective coupler with a coupler body, and a... | 11/29/2005 |
| 6970488 | Tunable organic VCSEL system A system for mechanically tuning optical wavelengths emitted from an organic laser cavity device, that includes: a multi-layered film structure, wherein the multi-layered film structure is pumped by an incoherent source of photons; and a micro-electromechanical mirr... | 11/29/2005 |
| 6967354 | Light emitting semiconductor package A light emitting semiconductor package (250) has a semiconductor chip (252) with a surface with one or more light emitting devices (254) formed on or in the surface. A cap (256) is bonded to the surface of the chip (252) to encapsu... | 11/22/2005 |
| 6967984 | External cavity laser External cavity laser with reflector in optical wave guide, particularly HDBR laser, with an active element comprising a semiconductor optical amplifying cavity having a low-reflectivity facet (3), for example a Semiconductor Optical Amplifier (SOA) with a fa... | 11/22/2005 |
| 6966706 | Light-emitting device and optical transmission unit A light-emitting device includes 16 vertical-cavity surface-emitting laser diodes (VCSELs) disposed like a 4×4 grid, for example, in a sufficiently narrower range than the end surface of an optical fiber. The 16 VCSELs disposed in the light-emitting device emit opt... | 11/22/2005 |
