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"That the automobile has practically reached the limit of its development is suggested by the fact that during the past year no improvements of a radical nature have been introduced."
Scientific American ; Jan. 2 edition, 1909
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| Number | Title | Issue Date |
| 7317745 | Multi-wavelength laser diode The present invention relates to a multi-wavelength laser diode, in which an oscillating structure includes a semiconductor substrate, and a lower cladding layer, an active layer and a ridge formed in their order on the semiconductor substrate. A first metal layer i... | 01/08/2008 |
| 7317536 | Spectral bandwidth metrology for high repetition rate gas discharge lasers A bandwidth meter apparatus and method for measuring the bandwidth of a spectrum of light emitted from a laser input to the bandwidth meter which may comprise an optical bandwidth monitor providing a first output representative of a first parameter which is indicati... | 01/08/2008 |
| 7317179 | Systems and methods to shape laser light as a homogeneous line beam for interaction with a film deposited on a substrate Systems and methods are disclosed for shaping and homogenizing a laser beam for interaction with a film. The shaping and homogenizing system may include a lens array and a lens that is positioned to receive laser light from the lens array and produce a respective el... | 01/08/2008 |
| 7315562 | 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... | 01/01/2008 |
| 7312856 | Programmable pulse capture device with automatic gain control The invention an optical system and a method for automatically controlling the gain of a receiver in an optical system. The optical system includes an optical receiver, a pulse capture unit, and an automatic gain control. The pulse capture unit includes a capture un... | 12/25/2007 |
| 7310357 | Providing low-coherence light The invention features an apparatus and an associated method for illuminating a target area. The apparatus includes reflectors defining a first optical cavity. The first optical cavity defines a first set of longitudinal modes. The apparatus includes a first gain me... | 12/18/2007 |
| 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 |
| 7294863 | Micro-lens built-in vertical cavity surface emitting laser A micro-lens built-in vertical cavity surface emitting laser (VCSEL) includes a substrate and a lower reflector formed on the substrate. An active layer is formed on the lower reflector, generating light by a recombination of electrons and holes. An upper reflector ... | 11/13/2007 |
| 7295589 | Frequency modulated vertical cavity laser A frequency modulated (FM) vertical cavity surface emitting laser (VCSEL). The frequency modulated VCSEL includes a mirror region that has an active region. The frequency modulated VCSEL also includes a phase adjustment region for use in altering the characteristics... | 11/13/2007 |
| 7291853 | Discharge produced plasma EUV light source An DPP EUV source is disclosed which may comprise a debris mitigation apparatus employing a metal halogen gas producing a metal halide from debris exiting the plasma. The EUV source may have a debris shield that may comprise a plurality of curvilinear shield members... | 11/06/2007 |
| 7286578 | High-power diode laser system A diode laser system having a diode amplifier member with a large transverse gain area. The diode amplifier member includes an amplifying medium for amplifying a number of spatial modes of a spatial light distribution. The laser system further includes a number of p... | 10/23/2007 |
| 7286241 | System and method for high-speed laser detection of ultrasound A system and method for laser light amplification provides amplification of a laser light beam emitted from a laser light source as low-amplification seed laser light signal. The low-amplification seed laser light signal is transmitted to an amplification component.... | 10/23/2007 |
| 7283577 | Radiation-emitting semiconductor component A radiation-emitting semiconductor component, having a semiconductor layer sequence (1) with an active zone (2) provided for radiation generation and a first mirror arranged downstream of the active zone. The first mirror comprises a metal layer (4 | 10/16/2007 |
| 7282706 | Advanced optics for rapidly patterned laser profiles in analytical spectrometry The present invention is directed to a novel arrangement of optical devices for the rapid patterning of laser profiles used for desorption and/or ionization sources in analytical mass spectrometry. Specifically, the new optical arrangement provides for a user-define... | 10/16/2007 |
| 7277229 | Linear light beam generating optical system An optical system includes semiconductor lasers arranged in the direction of the slow axis of the laser beam, an optical means which makes parallel the collimated laser beams, an optical member which is provided with inlet and outlet faces which are positioned in pe... | 10/02/2007 |
| 7277188 | Systems and methods for implementing an interaction between a laser shaped as a line beam and a film deposited on a substrate Systems and methods are disclosed for focusing a beam for an interaction with a film deposited on a substrate wherein the focused beam defines a short axis and a long axis. In one aspect, the system may include a detecting system to analyze light reflected from the ... | 10/02/2007 |
| 7277466 | High power gas discharge laser with helium purged line narrowing unit A helium purge for a grating based line narrowing device for minimizing thermal distortions in line narrowed lasers producing high energy laser beams at high repetition rates. Applicants have shown substantial improvement in performance with the use of helium purge ... | 10/02/2007 |
| 7277464 | Method and apparatus for controlling the output of a gas discharge laser system The present invention relates to a fluorine gas discharge laser system and control of replenishment of fluorine gas as the gas discharge laser operates and consumes fluorine. ... | 10/02/2007 |
| 7274723 | Method for amplifying a solid-state laser Conventionally, a laser beam is amplified by making a single pass through an amplifier but the laser beam emitted from the oscillator generally has low energy, so the energy stored in the amplifier cannot be fully extracted and only low laser output power and overal... | 09/25/2007 |
| 7266257 | Reducing crosstalk in free-space optical communications An optical transmitter includes a modulator, a dispersion adjustment module, and an optical amplifier. The optical transmitter is configured to transmit optical pulses over a free-space optical communication channel. The modulator is configured to produce an optical... | 09/04/2007 |
| 7260137 | Vertical-cavity surface-emission type laser diode and fabrication process thereof A vertical-cavity, surface-emission-type laser diode includes an optical cavity formed of an active region sandwiched by upper and lower reflectors, wherein the lower reflector is formed of a distributed Bragg reflector and a non-optical recombination elimination la... | 08/21/2007 |
| 7257136 | Laser apparatus A laser apparatus (100) for performing the laser machining operation by condensing the laser light output from a laser oscillator (3) is disclosed. A laser output value calculation unit calculates a laser output value (L1) based on a command val... | 08/14/2007 |
| 7254154 | DFB laser with a distributed reflector and photonic band gap The invention relates to a semiconductor laser consisting of an active waveguide comprising an active region surrounded by a filling material and which is coupled to a distributed reflector. Said distributed reflector is made from the aforementioned filling material... | 08/07/2007 |
| 7251264 | Distributed bragg reflector for optoelectronic device This disclosure concerns devices such as DBRs, one example of which includes at least one first mirror layers having an oxidized region extending from an edge of the DBR to an oxide termination edge that is situated greater than a first distance from the edge of the... | 07/31/2007 |
| 7248397 | Wavelength-doubling optical parametric oscillator A wavelength-doubling optical parametric oscillator (OPO) comprising a type II nonlinear optical medium for generating a pair of degenerate waves at twice a pump wavelength and a plurality of mirrors for rotating the polarization of one wave by 90 degrees to produce... | 07/24/2007 |
| 7247892 | Imaging array utilizing thyristor-based pixel elements An improved imaging array (and corresponding method of operation) includes a plurality of heterojunction thyristor-based pixel elements disposed within resonant cavities formed on a substrate. Each thyristor-based pixel element includes complementary n-type and p-ty... | 07/24/2007 |
| 7245647 | Surface-emission laser diode operable in the wavelength band of 1.1-1.7mum and optical telecommunication system using such a laser diode A surface-emission laser diode includes a distributed Bragg reflector tuned to wavelength of 1.1 μm or longer, wherein the distributed Bragg reflector includes an alternate repetition of a low-refractive index layer and a high-refractive index layer, with a heteros... | 07/17/2007 |
| 7245642 | Broadband external cavity diode laser An external cavity laser and a method of generating laser light via an external cavity laser comprising emitting laser light from a source, collimating light output by the source, receiving collimated light with a diffraction grating, reflecting light received from ... | 07/17/2007 |
| 7242703 | Organic injection laser An unipolar organic injection laser in which electrically-stimulated intraband transitions result in lasing. An active region includes at least one organic injector layer and at least one organic emitter layer. Each organic emitter layer has a first energy level and... | 07/10/2007 |
| 7233297 | Steerable radial line slot antenna A steerable antenna comprising an array of T-shaped slots. The location of the slots is moved to define an array of ring- or spiral-patterned phase constant regions. Distortions or contractions of the pattern occur by repositioning some or all of the slots forming t... | 06/19/2007 |
| 7233611 | Diode-pumped solid-state laser device and manufacturing method of the same A conventional method for a solid-state laser device that obtains a laser beam output of a high quality at a high output using a laser diode as a pumping light source has a problem that the costs are increased and the fabrication becomes complicated due to an increa... | 06/19/2007 |
| 7230964 | Lithography laser with beam delivery and beam pointing control The present invention provides a modular high repetition rate ultraviolet gas discharge laser light source with a beam delivery to a production line machine. The system includes an enclosed and purged beam path with beam pointing control for delivery the laser beam ... | 06/12/2007 |
| 7224905 | Remotely-interrogated high data rate free space laser communications link A system and method of remotely extracting information from a communications station by interrogation with a low power beam. Nonlinear phase conjugation of the low power beam results in a high power encoded return beam that automatically tracks the input beam and is... | 05/29/2007 |
| 7224875 | Semiconductor optical device integrated with a photo detector The present invention provides a semiconductor optical device 1 that includes a photodiode capable of monitoring front light of the light-emitting device. The optical device 1 includes a photodiode 3, which is formed on a substrate 7 and ... | 05/29/2007 |
| 7220256 | Laser system and method for treatment of biological tissues A system for and method of performing laser assisted surgery is disclosed. Laser radiation is preferably delivered to a target area of tissue using a Er:YAG laser source. The laser radiation is delivered to the target area in bursts of laser radiation comprising set... | 05/22/2007 |
| 7221691 | Versatile method and system for single mode VCSELs A system and method for providing a single mode VCSEL (vertical cavity surface emitting laser). A lower mirror is formed on a substrate. An active region including one or more quantum wells is formed over the lower mirror. The upper mirror formed over the active reg... | 05/22/2007 |
| 7218661 | Line selected Ftwo chamber laser system An injection seeded modular gas discharge laser system capable of producing high quality pulsed laser beams at pulse rates of about 4,000 Hz or greater and at pulse energies of about 5 mJ or greater. Two separate discharge chambers are provided, one of which is a pa... | 05/15/2007 |
| 7218660 | Single-mode vertical cavity surface emitting lasers and methods of making the same In one aspect, a vertical cavity surface emitting laser (VCSEL) is operable to generate single-mode laser light at an operative wavelength. The VCSEL includes a light-emitting surface and a monolithic longitudinal stack structure. The longitudinal stack structure in... | 05/15/2007 |
| 7217941 | Systems and methods for deflecting plasma-generated ions to prevent the ions from reaching an internal component of an EUV light source A system is disclosed for protecting an internal EUV light source component from ions generated at a plasma formation site. In one aspect, the system may comprise a plurality of foil plates and an arrangement for generating a magnetic field to deflect ions into one ... | 05/15/2007 |
| 7218649 | Laser beam containment system A laser beam containment system includes a number of optics that direct a laser beam produced by a laser beam source along a path to a point of application of the laser beam. One or more hollow tubes are positioned in an arrangement such that the laser beam passes t... | 05/15/2007 |
