Bizarre Patents
Wearable Device For Feeding and Observing Birds and Other Flying Animals
A device for feeding and observing flying animals comprising a hat, a support mounted on the hat and extending outward from the hat, and a feeder mounted on the support.
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| Number | Title | Issue Date |
| 7869481 | High power solid-state optical amplification process and system A high power solid-state non-regenerative optical amplification system (100) for amplifying a pulsed optical beam, includes a first optical amplification crystal (C1) and a second optical amplification crystal (C2) for amplifying the opt... | 01/11/2011 |
| 7633988 | Tunable laser source with monolithically integrated interferometric optical modulator A monolithically-integrated semiconductor optical transmitter that can index tune to any transmission wavelength in a given range, wherein the range is larger than that achievable by the maximum refractive index tuning allowed by the semiconductor material itself (i... | 12/15/2009 |
| 7545841 | Composite material with proximal gain medium An apparatus and related methods are described, the apparatus comprising a composite material layer configured to exhibit at least one of a negative effective permittivity and a negative effective permeability for radiation of at least one wavelength propagating the... | 06/09/2009 |
| 7502402 | Integrated optical semiconductor device A semiconductor laser device includes a semiconductor laser portion, a window layer structure portion, a first inter-element portion, and a pre-placed optical element portion on an InP substrate. The semiconductor laser portion includes an InGaAsP layer and an InP l... | 03/10/2009 |
| 7460576 | Semiconductor optical amplifier A semiconductor optical amplifier according to the present invention comprises a lower cladding layer of a first conductive type, an upper cladding layer of a second conductive type, an active layer, and a diffraction grating layer. The lower cladding layer includes... | 12/02/2008 |
| 7388894 | Hybrid MOPA having narrowband oscillator and amplifier with integrated optical coupling A waveguide to waveguide coupled hybrid master oscillator power amplifier (MOPA) includes a wavelength locked laser master oscillator (MO) first chip including a semiconductor substrate, a waveguide region having a gain section, one side of the MO including an integ... | 06/17/2008 |
| 7368421 | Use of dipeptidyl peptidase IV inhibitors in the treatment of multiple sclerosis The present invention provides a new use of DP IV-inhibitors. The compounds of the present invention, and their corresponding pharmaceutically acceptable acid addition salt forms, are useful in treating conditions mediated by DP IV or DP IV-like enzymes, such as imm... | 05/06/2008 |
| 7355785 | Gain-clamped semiconductor optical amplifier A gain-clamped semiconductor optical amplifier is disclosed. The amplifier includes a gain waveguide for amplifying an optical signal input to the gain waveguide, and a grating layer, in contact with the gain waveguide, having a first grating disposed at a first end... | 04/08/2008 |
| 7343061 | Integrated photonic amplifier and detector An asymmetric twin waveguide (ATG) structure with an integrated amplifier and detector fabricated in a single active waveguide layer is disclosed. The structure comprises an active waveguide layer formed on a passive waveguide layer. The active and passive waveguide... | 03/11/2008 |
| 7333735 | Communication using VCSEL laser array Ultrafast directional beam switching, using coupled VCSELs is combined with a light modulator to provide information transfer at bit rates of tens of GHz. This approach is demonstrated to achieve beam switching frequencies of 32-50 GHz in some embodiments and direct... | 02/19/2008 |
| 7313158 | Integrated high speed modulator for grating-outcoupled surface emitting lasers A single-mode grating-outcoupled surface emitting (GSE) semiconductor laser architecture is provided. This architecture enables high speed modulation of the GSE laser, which is accomplished by only varying the relative phase of counter propagating waves in the outco... | 12/25/2007 |
| 7313159 | Apparatus and method for providing a single-mode grating-outcoupled surface emitting laser with detuned second-order outcoupler grating An improved grating-outcoupled surface-emitting semiconductor laser architecture is provided. A second-order grating is placed between two distributed Bragg reflector gratings. The period of the second order grating is positively or negatively detuned from the distr... | 12/25/2007 |
| 7301977 | Tuneable unipolar lasers A unipolar semiconductor laser is provided in which an active region is sandwiched in a guiding structure between an upper and lower cladding layer, the lower cladding layer being situated on a semiconducting substrate. The unipolar semiconductor laser comprises a r... | 11/27/2007 |
| 7286731 | Monolithically integrated optical coupler with substantially no splitting loss A lossless optical coupler includes at least one input waveguide, at least two output waveguides and an intermediate optical splitter. The optical splitter of the present invention further comprises an active section adapted to provide contemporaneous splitting and ... | 10/23/2007 |
| 7274010 | Semiconductor optical amplifier device amplifying an externally applied light signal, semiconductor optical amplification driving device and semiconductor light receiving apparatus A semiconductor optical amplifier device includes an active layer, an n-type InP substrate, an n-type InP clad layer, a p-type InP clad layer, p-electrodes and n-electrodes. The active layer is made of, e.g., InGaAsP, and includes a saturable absorption region and o... | 09/25/2007 |
| 7263115 | Semiconductor device and a method of manufacturing a semiconductor device A semiconductor device comprises an active region (4), a cladding layer (5,7), and a saturable absorbing layer (6) disposed within the cladding layer. The saturable absorbing layer comprises at least one portion (11a) that is absor... | 08/28/2007 |
| 7257139 | Semiconductor laser device and optical pickup apparatus using the same A semiconductor laser device has a striped structure for injecting carriers and includes a first electrically-conductive cladding layer, an active layer, and a second electrically-conductive cladding layer that are formed on a substrate. A width of the stripe change... | 08/14/2007 |
| 7248609 | Amplified beam source Directing an input light beam into a laser diode operated at a power below that required for lasing stimulates emissions, resulting in an amplified output beam. A dynamic steering system can focus the input beam onto front face of the laser diode. The steering syste... | 07/24/2007 |
| 7245644 | Semiconductor monolithic integrated optical transmitter A semiconductor monolithic integrated optical transmitter including a plurality of active layers formed on a semiconductor substrate is disclosed, which comprises: a distributed feedback laser diode including a grating for reflecting light with a predetermined wavel... | 07/17/2007 |
| 7245803 | Optical waveguide grating coupler An optical waveguide grating coupler for coupling light between a planar waveguide and an optical element such as an optical fiber. The optical waveguide grating coupler includes a grating comprising a plurality of elongate scattering elements. The optical waveguide... | 07/17/2007 |
| 7235150 | Multi-channel laser pump source for optical amplifiers An optical assembly, such as a multiple output diode laser pump source for EDFAs, is formed by pressing an optical array emitter chip against a standoff structure protruding from a submount such that the emitter chip deforms to match the curvature of the standoff st... | 06/26/2007 |
| 7236295 | Broadband light source A broadband light source is disclosed. The broadband light source includes a semiconductor optical amplifier for generating and amplifying light of a broadband wavelength, the amplifier having a first end and a second end and a mirror spaced from the second end of t... | 06/26/2007 |
| 7233433 | Self-reference locking of optical coherence by single-detector electronic-frequency tagging A coherent laser beam combining system wherein the output of a single master oscillator is split into a plurality of signals, the signals are electronically modulated at unique frequencies. One signal is designated a reference signal while the remaining signals are ... | 06/19/2007 |
| 7230958 | Raman amplifier and raman pumping method Provided are a Raman amplifier and a Raman pumping method. A light source unit outputs a pumping light having a wavelength that periodically changes. A light intensity control unit varies a light intensity of the pumping light using the pumping light to improve the ... | 06/12/2007 |
| 7224519 | Low noise multi-wavelength light source and wavelength division multiplexing system using same A multi-wavelength light source includes a substrate, a fabry-perot laser laminated on the substrate that is operated by driving current below a predetermined threshold current to generate multi-wavelength light including a plurality of peaks whose wavelengths and s... | 05/29/2007 |
| 7194014 | Semiconductor laser device, semiconductor laser module, and optical fiber amplifier using the semiconductor laser module A semiconductor laser device having two active-layer stripe structures includes an n-InP substrate, an n-InP clad layer, a lower GRIN-SCH layer, an active layer, an upper GRIN-SCH layer, a p-InP clad layer, and a p-InGaAsP contact layer grown in this order, in a sid... | 03/20/2007 |
| 7187492 | Self-referenced locking of optical coherence by single-detector electronic-frequency tagging A coherent laser beam combining system wherein the output of a single master oscillator is split into a plurality of signals, the signals are electronically modulated at unique frequencies. One signal is designated a reference signal while the remaining signals are ... | 03/06/2007 |
| 7184207 | Semiconductor optical device An optical device comprises a semiconductor structure including first and second ridge waveguides, each waveguide comprising a ridge extending across a surface of the semiconductor structure. The ridge of the first waveguide has a first height above a first region o... | 02/27/2007 |
| 7173757 | Broad-band light source using a semiconductor optical amplifier A broad-band light source using a semiconductor optical amplifier is provided. The broad-band light source includes the semiconductor optical amplifier including an active layer serving as a gain area, an under-cladding layer, an over-cladding layer, and antireflect... | 02/06/2007 |
| 7167301 | Semiconductor optical amplifier suitable for coarse WDM communications and light amplification method An active layer contains quantum structures. The active layer amplifies light propagating therein while current is injected therein. Electrodes are provided for sections of the active layer sectionalized along a light propagation direction. The electrodes inject dif... | 01/23/2007 |
| 7155131 | Optical communication devices, light emission devices and optical communication methods The invention relates to optical communication devices, light emission devices and optical communication methods. Aspects of the present invention provide methods and devices enable provision of modulated output optical signals without providing modulation of total ... | 12/26/2006 |
| 7149236 | Optoelectronic semiconductor device Optoelectronic devices, such as optical transmitters and optical amplifiers, are provided. The optoelectronic devices are suitable for use in connection with optical communications systems, and related components and devices, such as may be used in the transmission,... | 12/12/2006 |
| 7145923 | Tuneable laser A tuneable laser has a gain section bounded at one end by a first reflector in the form of a distributed Bragg reflector adapted to produce a comb of reflective peaks and on the other end by a second Bragg reflector, the second Bragg reflector adapted to reflect at ... | 12/05/2006 |
| 7110170 | Semiconductor optical amplifier having photo detector and method of fabricating the same A gain-clamped semiconductor optical amplifier having photo detectors which are integrated on a single crystal substrate can detect optical intensities at input/output terminals of the optical amplifier. The semiconductor optical amplifier includes a first conductiv... | 09/19/2006 |
| 7106778 | Tuneable laser A tuneable laser having an active section, a phase section and a Bragg reflector comprising a plurality of discrete grating units, at least two of which gratings have a different pitch, wherein current is applicable to at least the grating having a longer pitch, suc... | 09/12/2006 |
| 7095772 | Extreme chirped/stretched pulsed amplification and laser Methods, devices and systems for generating ultrashort optical linear chirped pulses with very high power by amplifying the pulses so that their temporal duration is longer than the storage time of the amplifying medium. The additional gain factor is related to the ... | 08/22/2006 |
| 7088748 | Tunable laser A tuneable laser having an active section, a phase section and a Bragg reflector comprising a plurality of descrete grating units, at least two of which gratings have a discrete pitch, wherein at least two of the gratings having a different pitch are each provided w... | 08/08/2006 |
| 7039078 | Semiconductor optical modulator and laser with optical modulator In a semiconductor optical modulator of this invention, each quantum-well layer and each barrier layer of a quantum-well structure serving as a light absorption layer are respectively made of In1-X-YGaXAlYN (0≦X, Y≦1, 0≦X+Y≦1... | 05/02/2006 |
| 7031366 | Using relay lens to enhance optical performance of an external cavity laser A method of enhancing wavelength tuning performance in an external cavity laser includes emitting light into the cavity of the laser at a range of angles relative to an optical axis of the cavity, and transforming emitted light of narrow beam divergence to light wit... | 04/18/2006 |
| 7010010 | Broadband cascade light emitters A broadband CLE capable of operation simultaneously at multiple wavelengths comprises: a core region including a multiplicity or cascade of stages, each stage including a radiative transition region. A first group of stages emits radiation at a first wavelength and ... | 03/07/2006 |
