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US20060227822 Laser trim pump  
A technique for compensating for the effects of thermo-optic distortions in a solid state laser gain medium, and reducing optical path differences in the laser. A diode array coupled to the laser...
US20100080253 Laser Display System with Optical Feedback Configured to Reduce Speckle Artifacts  
An imaging system (200) includes a plurality of laser sources (201) configured to produce a plurality of light beams (204). One or more optical alignment devices (220) orient the light beams (204)...
US20080175599 OPTICAL PULSE GENERATOR, SEMICONDUCTOR LASER MODULE, AND SEMICONDUCTOR LASER DRIVE APPARATUS  
Provided are: an RF signal generator 110 which generates and outputs an RF signal having a signal waveform in which the potential of the signal changes to be alternately positive and negative with...
US20110019705 TAILORED PULSE BURST  
Output pulses from an optical system having a seed source and an optical amplifier coupled to the seed source may be controlled by controlling a power of a seed signal from the seed source. The...
US20100054287 Method and System for Laser-Based High-Speed Digital Marking of Objects  
Laser marking system and method are provided. A laser source is configured to supply a laser beam having a first optical intensity level and a respective beam cross-section. A spatial light...
US20080111981 Radiation Beam Pulse Trimming  
A system is used to perform fast and slow applications, for example fast application can be pulse trimming. The system includes a radiation source, an electro-optical modulator, and a beam...
US20050089069 Image forming apparatus and semiconductor laser modulation driving apparatus  
A color image forming apparatus produces a latent image on a photosensitive body based on a signal output from a scanning light detecting part in response to detection of scanning light; a...
US20060007969 Short pulse optical interconnect  
A pulse laser generates a pulse train. A modulator receives the pulse train and a data signal. The modulator encodes the data signal onto the pulse train by selectively passing pulses.
US20060140228 Semi-integrated designs with in-waveguide mirrors for external cavity tunable lasers  
Semi-integrated external cavity diode laser (ECDL) designs including integrated structures comprising a gain section, modulator section, and optional phase control section. Each integrated...
US20110032959 COUNTING DEVICE, PHYSICAL QUANTITY SENSOR, COUNTING METHOD AND PHYSICAL QUANTITY MEASURING METHOD  
The counting device includes: a signal counter that counts the number of half cycles of input signals during given counting periods; a signal half cycle measurement unit that measures the half...
US20050141583 Method and device for coherence reduction  
A laser device may include at least two mirrors forming a resonant cavity for reflecting laser radiation. The laser device may further include a diffuser, which may equalize a coherence length...
US20060159138 Pulsed laser light source  
A pulsed laser light source is provided. A continuous light beam is first generated by a CW laser source such as a laser diode, a superfluorescent source or a CW solid state laser. The continuous...
US20120002685 HIGH VOLTAGE SWITCH WITH ADJUSTABLE CURRENT  
The present disclosure relates to a high voltage switch which may comprise a chain of MOS field-effect transistors (MOSFETs). The current of the individual MOSFETS, and hence the chain, can be...
US20090262765 SMALL DIMENSION HIGH-EFFICIENCY HIGH-SPEED VERTICAL-CAVITY SURFACE-EMITTING LASERS  
A Vertical-Cavity Surface-Emitting Laser (VCSEL) is disclosed, comprising an optical cavity bounded by a top mirror and a bottom mirror, wherein the top mirror has multiple layers of alternating...
US20080131127 Broadband Light Source Using Fabry Perot Laser Diodes  
Disclosed is a broadband light source (BLS) necessary to implement wavelength-locked Fabry-Perot (FP) laser diodes (LDs) applicable to an optical subscriber network The BLS is based on a method...
US20090175303 LIGHT SOURCE MODE ALIGNMENT DEVICE AND METHOD, PASSIVE OPTICAL NETWORK SYSTEM  
A light source mode alignment device and method and a passive optical network system are provided. The device includes a laser and a temperature control unit connected to each other and further...
US20130266033 MODAL FILTERS FOR MODULATABLE SOURCES  
A system includes a modulatable source and matched modal filter. The modulatable source is associated with a plurality of source modes to provide a generated signal. The matched modal filter is...
US20080253411 Optically Active Matrix with Void Structures  
An optically active element, such as a photonic crystal, is formed by creating a matrix (1) in which an optically active material is dispersed, and generating one or more void structures (2, 3) in...
US20080253412 Light source, and image display apparatus, monitoring apparatus, and illumination apparatus using the same  
A light source that emits light includes light source units, each emitting a plurality of light beams parallel to one another, the plurality of light beams including first and second light beams,...
US20100322271 METHOD FOR DRIVING OPTICAL TRANSMITTER  
A method to control an LD (laser diode) is disclosed. The method compares the operating temperature of the LD with a transition temperature. When the former temperature exceeds the latter, the...
US20070223543 Laterally Implanted Electroabsorption Modulated Laser  
A monolithically integrated electroabsorption modulated laser having a ridge waveguide structure, has lateral ion implantation. The integrated device has a laser section and a modulator section....
US20100246617 NARROW SURFACE CORRUGATED GRATING  
Narrow surface corrugated gratings for integrated optical components and their method of manufacture. An embodiment includes a grating having a width narrower than a width of the waveguide on...
US20050094700 Apparatus for generating a laser structured line having a sinusoidal intensity distribution  
A apparatus for generating a structured line having a sinusoidal intensity distribution is disclosed. The apparatus comprises a coherent light source and a diffractive optical element. The...
US20100150188 SEED LIGHT MODULE FOR PASSIVE OPTICAL NETWORK  
A spectrum-sliced seed light module for a wavelength division multiplexing passive optical network (WDM PON) is provided. The seed light module includes an optical amplifier to amplify seed light,...
US20090279576 DUAL OUTPUT LASER SOURCE  
A dual output laser source provided on a substrate outputs light from a first and second output. A portion of the light generated by the laser is supplied to a first modulator via the first...
US20090059967 Electro-Optic Bragg Deflector and Method of Using It as Laser Q-Switch in a Q-Switched Laser and a Q-Switched Wavelength-Conversion Laser  
The configurations of an electro-optic Bragg deflector and the methods of using it as a laser Q-switch in a Q-switched laser and in a Q-switched wavelength-conversion laser are provided. As a...
US20140031678 METHOD FOR DRIVING WAVELENGTH-SWEPT LIGHT SOURCE  
Disclosed is a method for driving a wavelength-swept light source that includes an optical resonator in which an optical gain medium for emitting light, a wavelength selection element for...
US20100002736 Wavelength normalization in phase section of semiconductor lasers  
Particular embodiments of the present invention relate generally to semiconductor lasers and laser projections systems and, more particularly, to schemes for controlling semiconductor lasers....
US20060098699 Laser optics integrated control system and method of operation  
A controller (320) for controlling various operational parameters of the Laser Module (303). The modulation drive signal (300) causes the circuits in the driver (301) to send a signal to the...
US20070242708 Method for Designing a Semiconductor Laser with Intracavity Reflecting Features, Semiconductor Laser Method of Fabrication Thereof  
A Fabry-Pérot (FP) laser device (1) has an n-type substrate (2), an active region (3), a p-type cladding (4), an insulator (5), and a contact (6). The cladding (4) comprises a ridge (7) having a...
US20080095203 Multi-emitter image formation with reduced speckle  
A technique for reducing speckle in a projected image includes forming an image using a plurality of laser light emitters. An input to the plurality of laser light emitters is non-mechanically...
US20090296759 SEQUENTIALLY-MODULATED DIODE-LASER SEED-PULSE GENERATOR  
A modulated diode-laser provides a first sequence of optical pulses. The first sequence of optical pulses is further modulated to provide a second sequence of optical pulses. Pulses in the second...
US20060104321 Q-MODULATED SEMICONDUCTOR LASER WITH ELECTRO-ABSORPTIVE GRATING STRUCTURES  
A Q-modulated semiconductor laser comprises a λ/4-phase-shifted distributed-feedback grating. Two isolated electrodes are deposited on top of the grating, and one electrode is deposited on the...
US20070280309 Optical waveguide with single sided coplanar contact optical phase modulator  
An apparatus and method for high speed phase modulation of optical beam. For one embodiment, an apparatus includes an optical waveguide having adjoining first and second regions disposed in...
US20090310633 PULSE WIDTH MODULATION SIGNAL GENERATING DEVICE, IMAGE DISPLAY APPARATUS INCLUDING PULSE WIDTH MODULATION SIGNAL GENERATING DEVICE, AND PULSE WIDTH MODULATION SIGNAL GENERATING METHOD  
A pulse width modulation signal generating device which generates a pulse width modulation signal for modulating laser beam according to image data includes: a cycle signal output circuit which...
US20090278047 Electronic device  
A transportable electronic cassette and an image reading device carry out communication by laser light between themselves, with the separation distance to the casing of the opposing device...
US20090262766 ACTIVE TERAHERTZ METAMATERIAL DEVICES  
Metamaterial structures are taught which provide for the modulation of terahertz frequency signals. Each element within an array of metamaterial (MM) elements comprises multiple loops and at least...
US20080212091 Light source unit and spectrum analyzer  
A light source unit and a spectrum analyzer are provided in which the influence of interference can be reduced under conditions where light is separated into spectral components. A spectrum...
US20090041464 Anti Stark Electrooptic Medium and Electrooptically Modulated Optoelectronic Device Based Thereupon  
Semiconductor electrooptic medium shows behavior different from a medium based on quantum confined Stark Effect. A preferred embodiment has a type-II heterojunction, selected such, that, in zero...
US20100067555 TUNABLE OPTICAL SUPERCONTINUUM ENHANCEMENT  
A method and apparatus for providing optical supercontinuum. The method comprises creating a spectrally narrow phase feature within a supercontinuum spectrum produced from a laser pulse that has...
US20070189344 Modulator-integrated light source and its manufacturing method  
An inexpensive and compact modulator-integrated light source is capable of obtaining an extinction ratio of 10 dB sufficient for use in optical communication without requiring an amplifier or...
US20140334506 LIGHT DEFLECTOR AND LASER LIGHT SOURCE INCLUDING SAME  
A light deflector for deflecting a propagation direction of laser includes: a first metallic piece and a second metallic piece spaced apart from each other; and a transparent medium and an...
US20090175302 Method and apparatus for reducing optical signal speckle  
An optical signal generator is configured with an associated control system and driver configured to reduce speckle. Speckle reduction occurs by pulsing the drive signal between a first current...
US20120275477 SUPPRESSION OF COHERENCE EFFECTS IN FIBER LASERS  
The present invention provides, in at least one embodiment, a scheme which is effective in suppressing detrimental coherence effects such as random backscatter. In a fiber laser having a master...
US20090074019 OPTICAL INJECTION LOCKING OF VCSELS FOR WAVELENGTH DIVISION MULTIPLEXED PASSIVE OPTICAL NETWORKS (WDM-PONS)  
Low cost implementation of broadband upstream transmission for local and access network applications is made possible through the use of modulated downstream signals in a wavelength division...
US20050041697 Portable laser  
Methods and apparatus for modifying a material with a laser light beam, such as, for example, a laser light beam provided by portable laser, such as, for example, a portable optical fiber laser.
US20120250711 Optical Module  
An optical module providing higher reliability during high-speed light modulation and a lower bit error rate when built into a transmitter (transceiver). An optical module contains a taper mirror...
US20090245811 HIGH BANDWIDTH COMMUNICATION SYSTEM AND METHOD  
A communication system (20) includes a transmitter (22) with (i) a transmitter photonic crystal (30) having a waveguide (40) and multiple cavities (42, 44, and 46) spaced along the waveguide (40);...
US20080205459 LIGHT SOURCE DEVICE AND PROJECTOR  
A light source device includes a plurality of light emission sections disposed in parallel with an interval, wherein the interval for the light emission sections near each end portion in an array...
US20090252186 COHERENT LIGHT DISPLAY SYSTEM  
A display system includes a coherent light source that can emit a coherent light beam, an optical component that can direct the coherent light beam to a spatial light modulator, a transport...

Matches 1 - 50 out of 125 1 2 3 >