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| Number | Title | Issue Date |
| 7929579 | Picosecond laser apparatus and methods for its operation and use Apparatuses and methods are disclosed for applying laser energy having desired pulse characteristics, including a sufficiently short duration and/or a sufficiently high energy for the photomechanical treatment of skin pigmentations and pigmented lesions, both natura... | 04/19/2011 |
| 7907644 | High-repetition laser system for generating ultra-short pulses according to the principle of cavity dumping A high-repetition laser system for generating ultra-short pulses according to the principle of pulse decoupling is described. This is achieved by the use of an amplifying laser medium, a laser resonator with at least one resonator mirror and at least one pulse decou... | 03/15/2011 |
| 7746908 | High-repetition laser system for generating ultra-short pulses according to the principle of cavity dumping A high-repetition laser system for generating ultra-short pulses according to the principle of pulse decoupling is described. This is achieved by the use of an amplifying laser medium, a laser resonator with at least one resonator mirror and at least one pulse decou... | 06/29/2010 |
| 7742508 | Electro-optic deflector An electro-optic deflector 51 has an electro-optic material body 519 through which an optical beam 46 is passed. The deflector has no more than three longitudinal electrodes, of which no more than two electrodes 511, 512 have arcuate tran... | 06/22/2010 |
| 7586958 | Electro-opto switching of unpolarized lasers A method and apparatus for switching an unpolarized pulsed laser is disclosed. An example is a laser system having a source for producing input energy in response to an input drive signal. A laser medium is provided for receiving the input energy and converting the ... | 09/08/2009 |
| 7586957 | Picosecond laser apparatus and methods for its operation and use Apparatuses and methods are disclosed for applying laser energy having desired pulse characteristics, including a sufficiently short duration and/or a sufficiently high energy for the photomechanical treatment of skin pigmentations and pigmented lesions, both natura... | 09/08/2009 |
| 7551652 | Simultaneously Q-switched fiber lasers using a shared modulator A shared modulator applies radial stress to the polarization-dependent fiber chains to induce birefringence and simultaneously Q-switch two or more fiber lasers. Multiple temporally overlapping pulsed beams can be generated with pulses | 06/23/2009 |
| 7539221 | Fiber-laser-based gigahertz sources through difference frequency generation (DFG) by nonlinear optical (NLO) materials A fiber-laser-based implementation of a Gigahertz source through difference frequency generation (DFG) by nonlinear optical (NLO) materials is compact, tunable and scalable. A pair of pulsed fiber lasers, preferably single-frequency, generate output pulses at freque... | 05/26/2009 |
| 7522642 | Method and system for laser amplification using a dual crystal Pockels cell A system for laser amplification includes a dual-crystal Pockels cell which is used to control emission of laser pulses from an ultra-fast laser. The Pockels cell is constructed to enable adjustment of the rotational orientation of one crystal relative to the other ... | 04/21/2009 |
| 7391794 | Injection seeding of frequency-converted Q-switched laser A non-linearly frequency-converted Q-switched laser is “injection seeded” with short pulses from another laser, called a seed laser. Radiation produced by the Q-switched laser is frequency converted in a non-linear process. The injection seeding can enhance peak... | 06/24/2008 |
| 7376354 | All optical clock recovery All optical clock recovery includes a transmitter for generating an optical timing signal. The transmitter includes a semiconductor laser for the production of a dynamically synchronizable timing signal, the laser having an external resonator for feedback of the tim... | 05/20/2008 |
| 7356053 | Mode-locked laser with variable pulse duration A pulsed, mode-locked, picosecond laser having a solid-state laser medium, a saturable absorber (SA), and a passive negative feedback (PNF) element. The SA is “slow,” having an absorption recovery time which is longer than a desired duration of an output pulse. ... | 04/08/2008 |
| 7327773 | Short-pulse laser device with a preferably passive mode coupling and multiple reflection telescope therefor The invention relates to a short-pulse laser device (11) with a preferably passive mode coupling. Said device comprises a resonator (12) which contains a laser crystal (14) in addition to several mirrors (M1-M7, OC) that define a l... | 02/05/2008 |
| 7324568 | Modulated saturable absorber controlled laser A modulated saturable absorber controlled laser. The laser includes an active medium; a saturable absorber material operationally coupled to the medium to serve as a passive Q switch; and an energy source disposed external to the medium for apply energy to the absor... | 01/29/2008 |
| 7315697 | Light source for generating an output signal having spaced apart frequencies A multiple wavelength light source generates an output signal having a comb of accurately spaced apart frequencies with variable free spectral range in the C-band of optical fiber communication. The light source employs an electro-optical modulator (EOM) driven by a... | 01/01/2008 |
| 7312452 | Mobile remote detection device and remote detection method for methane gas accumulations The invention relates to a mobile remote detection device for accumulations of methane, comprising an emitter device having a light source in order to generate light, the wavelength of said light source being tuned with the spectral signature of methane, whereby the... | 12/25/2007 |
| 7300212 | Semiconductor optical package A semiconductor optical package for optical communication includes a cooling plate dissipating internal heat generated from the semiconductor optical package and having one or more grooves passing through top and bottom surfaces thereof. There is a housing having on... | 11/27/2007 |
| 7286577 | Laser wavelength actuators A laser-emitting device may be coupled to an electro-optically controlled wavelength actuator. An electro-optically controlled wavelength actuator may be a holographic wavelength actuator or a liquid crystal wavelength actuator. The electro-optically controlled wave... | 10/23/2007 |
| 7282666 | Method and apparatus to increase throughput of processing using pulsed radiation sources A material processing system and method is disclosed for processing materials such as amorphous silicon in an annealing processes and lithography processes on a silicon wafer, as well as ablation processes. A first laser generates periodic pulses of radiation along ... | 10/16/2007 |
| 7280569 | Electro-optical modulator module for COlaser Q-switching, mode-locking, and cavity dumping Various electro-optical modulator module designs are presented, which can provide for uniform, symmetric, and efficient heat removal for mode-locking, Q-switching, and/or cavity dumping operations. Heat can be uniformly extracted from an EO crystal without imposing ... | 10/09/2007 |
| 7280568 | Laser coherence control using homogeneous linewidth broadening An apparatus and method for linewidth broadening applied to a laser that emits a light having an output frequency ν and an emission linewidth δE. The apparatus is equipped with an electro-optic modulator for intercepting the light and a noise generator ... | 10/09/2007 |
| 7272158 | Highly efficient waveguide pulsed THz electromagnetic radiation source and group-matched waveguide THz electromagnetic radiation source Electromagnetic radiation sources operating in the Terahertz (THz) region capable of overcoming the Manley-Rowe limits of known optical schemes by achieving phase matching between a THz wave and optical pulse in a nonlinear waveguide, or by achieving both phase and ... | 09/18/2007 |
| 7268316 | Method for cleaning a resonator A method for cleaning a resonator in an oscillator, a laser being first used for the adjustment of the resonator, in that, using the laser, a dielectric material of the resonator is removed until a specified frequency is attained; the resonator being cleaned using t... | 09/11/2007 |
| 7260121 | Driver for Pockels cell and using this Pockels cell within laser systems Driver for Pockels cells and using this Pockels cell within laser systems The driver i.e. the electrical control of the Pockels cell is modified from the standardly known H-configuration using the switches S1, S2A; S1A, S2 A by add... | 08/21/2007 |
| 7260124 | Nonlinear optical crystal optimized for ytterbium laser host wavelengths A material for harmonic generation has been made by substitutional changes to the crystal LaCa4(BO3)3 also known as LaCOB in the form Re1xRe2yRe3zCa4(B03)3O where Re1 ... | 08/21/2007 |
| 7256930 | High power pulse shaping fiber laser for high data rate free space telecommunication systems An amplified laser source for amplifying a laser projection that includes a diode laser source modulated by a pulse generator applying an alternate high and low voltages higher and lower than a threshold voltage for projecting a modulated optical signal. The laser s... | 08/14/2007 |
| 7233155 | Electrooptic device, electronic apparatus, and method for making the electrooptic device The invention provides an electrooptic device and an electronic apparatus, in which the electrical characteristics of many thin-film switching elements formed in a substrate to support an electrooptic material can be accurately inspected. The invention also provides... | 06/19/2007 |
| 7224707 | Suppression of mode-beating noise in a Q-switched pulsed laser using novel Q-switch device and applications A novel Q-switch device enables significant quality and value improvement for a Q-switched laser system by achieving a significant reduction of mode-beating noise during the pulsed output. The origin of mode-beating noise in a Q-switched laser is a result of high ga... | 05/29/2007 |
| 7215690 | Laser module A solder-free laser module which comprises at least one laser chip clamp-mounting between electrodes. The laser module includes: some electrodes facing each other and having opposite poles; insulating separators placed between the facing surfaces of the electrodes t... | 05/08/2007 |
| 7179405 | Nonlinear optical crystal optimized for Ytterbium laser host wavelengths A material for harmonic generation has been made by substitutional changes to the crystal LaCa4 (BO3)3 also known as LaCOB in the form Re1xRe2yRe3zCa4(BO3)3O where Re1... | 02/20/2007 |
| 7180918 | Self-seeded single-frequency solid-state ring laser and system using same A method of operating a laser to obtain an output pulse having a single wavelength, comprises inducing an intracavity loss into a laser resonator having an amount that prevents oscillation during a time that energy from the pump source is being stored in the gain me... | 02/20/2007 |
| 7173956 | Electrically controlled uniform or graded reflectivity electro-optic mirror An electrically controlled variable reflectance mirror that includes a Pockels cell which enables its retardation or birefringence to be controlled in order to vary the light outcoupled from a laser cavity. Since the retardation is a function of the voltage applied ... | 02/06/2007 |
| 7133426 | Method and apparatus for producing a pulsed laser beam A mode locked pulsed laser is constructed to shorten pulse duration by a solid state saturable absorber, such as a glass doped with a quantum-dot material such as PbS. The saturable absorber, used as a passive mode locker, is preferably used in combination with an a... | 11/07/2006 |
| 7130318 | Electrooptic Q-switch element made of crystal This invention is a kind of electrooptic Q-switch element made of a single crystal and belongs to the application of crystal in electrooptic technology field. The invention consists of electrooptic Q-switch which is made of La3Ga5SiO14 | 10/31/2006 |
| 7126976 | Solid state lasers and a method for their production The present invention relates to a solid-state laser comprising: a) a semiconductor pump laser, b) a lens integrated on the surface of said semiconductor pump laser, c) a packaging material consisting essentially of a spin-on glass material, wherein the spin-on glas... | 10/24/2006 |
| 7123642 | Multi-wavelength laser device A multi-wavelength laser device includes at least two of a blue laser diode, a red laser diode, and an infrared laser diode, which are arranged in the same direction on the same base. One laser light emission point is arranged behind another in increasing order of w... | 10/17/2006 |
| 7116687 | High repetition rate passively Q-switched laser for blue laser based on interactions in fiber A laser apparatus is disclosed. The apparatus includes a Neodymium-doped lasing material having first and second surfaces and a passive Q-switch optically coupled to the second surface. The first-surface is substantially transparent to a pump radiation and substanti... | 10/03/2006 |
| 7116688 | Laser system and method for generation of a pulse sequence with controllable parameters and computer program product A laser system for generating at least one pulse and/or pulse sequence(s) of pulses having at least one specified property, such as pulse energy, duration, peak intensity, pulse form and/or timing includes an amplifying cavity. The amplification process is monitored... | 10/03/2006 |
| 7113327 | High power fiber chirped pulse amplification system utilizing telecom-type components An erbium fiber (or erbium-ytterbium) based chirped pulse amplification system is illustrated. The use of fiber amplifiers operating in the telecommunications window enables the implementation of telecommunications components and telecommunications compatible assemb... | 09/26/2006 |
| 7103282 | All optical clock recovery All optical clock recovery includes a transmitter for generating an optical timing signal. The transmitter includes a semiconductor laser for the production of a dynamically synchronizable timing signal, the laser having an external resonator for feedback of the tim... | 09/05/2006 |
