Matches 1 - 50 out of 61 1 2 >


Match Document Document Title
US20100091806 Semiconductor Lasers with Improved Temporal, Spectral, and Spatial Stability and Beam Profile Uniformity  
A method for improving spectral, spatial, and temporal stability of semiconductor lasers and their beam profile uniformity based on statistical average of plural transient or unsteady state...
US20070110111 Power system for ultraviolet lighting  
A power system for ultraviolet lighting includes a first network transformer structured to be powered from a first medium voltage power source and to output a first low voltage output; and a...
US20090041072 OPTICAL COMMUNICATION MODULE AND OUTPUT CONTROL METHOD OF SEMICONDUCTOR LASER  
An optical communication module includes a semiconductor laser drive circuit configured to supply a drive current to a semiconductor laser so as to output a laser beam; a drive control section...
US20100040098 LASER DIODE ILLUMINATOR DEVICE AND METHOD FOR OPTICALLY CONDITIONING THE LIGHT BEAM EMITTED BY THE SAME  
A laser diode illuminator device and a method for optically conditioning the output beam radiated from such a device, so that highly-demanding illumination application requirements that call for...
US20090196315 PULSED LASER OSCILLATOR WITH VARIABLE PULSE DURATION  
The present invention relates to the field of pulsed laser oscillators. It relates to a pulsed laser oscillator (15) for emitting a laser pulse, including a laser cavity (15), said laser cavity...
US20080240182 Variable Attenuator Device and Method  
A new and useful attenuating device and method for attenuating a polarized laser beam is provided. At least one attenuating optic is located along, and is rotatable about, a polarized laser beam...
US20090190617 LASER LIGHT INTENSITY CONTROL DEVICE, LASER LIGHT INTENSITY CONTROL METHOD, AND IMAGE FORMING APPARATUS  
A disclosed laser light intensity control device includes a semiconductor laser configured to scan a photoconductor by emitting laser beams and form an electrostatic latent image, a temperature...
US20050249250 Laser diode monitoring system  
A laser diode monitoring system, including a thermistor, a monitoring unit, and a laser diode is disclosed. Thermistor is to receive a temperature for outputting an electrical temperature signal....
US20060088071 Laser driver controller for safe operation of laser diode-based optical transmitters  
A method, apparatus and system for controlling operation of a laser driver to limit emission levels of laser diodes each producing different monitor photocurrents are disclosed. In one embodiment,...
US20060239310 HIGH DEFINITION DIGITAL MEDIA DATA CABLE SYSTEM  
The present invention provides a cable assembly and method of making thereof for use with HDMI/DVI connectors. The cable assembly of the present invention includes a flat extruded cable jacket...
US20070127530 Laser control  
A control system for operating a laser, including: a laser driver and a controller for providing the laser driver with a first electrical input indicative of a desired value for an output...
US20090141755 METHOD FOR CONTROLLING LASER POWER OF AN OPTICAL PICKUP UNIT  
A method for controlling laser power of an optical pickup unit (OPU) includes: providing a first relationship between the laser power and a driving parameter, wherein the driving parameter is...
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...
US20090179353 Method of manufacturing a three-dimensional object  
A method of manufacturing a three-dimensional object is provided, in which the object is solidified layer by layer by solidifying a building material by means of a beam of a gas laser at locations...
US20050008059 Laser apparatus  
The laser apparatus is disclosed that includes laser medium, a pair of mirrors and a regulator contained in the case, and is capable to regulate the output laser power without affection to the...
US20090154512 Method And Device For Monitoring Light  
A method for monitoring laser light launched into a core of a single mode fiber includes launching a portion of light directly into the cladding about the core. The cladding launched light is a...
US20080123704 System and method for regulating the power of a laser beam  
Disclosed is a system (10) for regulating the power of a laser beam (12). The system (10) comprises a first transparent plate (16) that is arranged in the light path of the laser beam (12) and can...
US20090201956 LIGHT SOURCE DRIVING APPARATUS AND LIGHT SOURCE DRIVING METHOD  
A light source driving apparatus, which adjusts a bias current to be supplied so as to control intensity of a light source, comprises a power source which outputs a variable reference voltage; a...
US20060146895 Apparatus for controlling laser output  
Provided is an apparatus for controlling a laser output comprising a common-anode laser diode having a first light emitting and receiving units and a common-cathode laser diode having a second...
US20060239306 Characterization and non-invasive correction of operational control currents of a tuneable laser  
A tuneable multi-section semiconductor laser 100 is characterized by applying currents in step-wise increments to sections 101, 102, 103 of the laser respectively and measuring power output by the...
US20110157671 Wave-Plate Structures, Power Selective Optical Filter Devices, and Optical Systems Using Same  
In an embodiment, an optical filter device includes an input polarizer for selectively transmitting an input signal. The device includes a wave-plate structure positioned to receive the input...
US20090316740 Light Source That Utilizes Small Footprint Reference Gas Cells for Multiple Laser Frequency Stabilization  
A light source and the method for operating the same are disclosed. The light source includes first and second lasers, and first and second wavelength control assemblies. The lasers emit first and...
US20090103579 PROCESSING APPARATUS AND METHOD OF PROCESSING AND METHOD OF MAKING LEAF SPRING  
A light source emits a laser beam to the object through an output end. An optical system is placed between the output end and the object. The optical system adjusts the energy of the laser beam...
US20050083978 Method for controlling laser beam power balance in laser scanning unit  
A method for controlling a laser beam power balance in a laser scanning unit is disclosed. The method of present invention comprises the steps of obtaining a first voltage value and a second...
US20090086777 OPTICAL DISK DRIVE AND LASER POWER CONTROL METHOD  
According to one embodiment, an optical disk drive includes a monitor diode which monitors a laser output of a laser diode irradiating a laser beam to an optical disk, a detector which sets an...
US20090238219 OPTICAL MODULE  
An optical module includes a semiconductor laser for output light with a wavelength, a temperature stabilization unit arranged for adjusting temperature of the semiconductor laser, and a...
US20060274796 Real-time sensors for lasers  
Methods of sensing lasers in real time for monitoring and control are disclosed. In one aspect, a method may include applying a perturbation current to a laser for a plurality of consecutive...
US20110158270 Tunable Quantum Cascade Lasers And Photoacoustic Detection Of Trace Gases, TNT, TATP and Precursors Acetone And Hydrogen Peroxide  
Methods and apparatus for broad tuning of single wavelength quantum cascade lasers and the use of light output from such lasers for highly sensitive detection of trace gases such as nitrogen...
US20110103411 Tunable Quantum Cascade Lasers and Photoacoustic Detection of Trace Gases, TNT, TATP and Precursors Acetone and Hydrogen Peroxide  
Methods and apparatus for broad tuning of single wavelength quantum cascade lasers and the use of light output from such lasers for highly sensitive detection of trace gases such as nitrogen...
US20070263683 OPTICAL APPARATUS AND IMAGE FORMING APPARATUS  
An optical apparatus includes a light source for emitting laser light perpendicularly to a surface of a semiconductor substrate; a positioning member for positioning the light source; an aperture...
US20050286576 Apparatus and method for controlling the power of a laser beam  
An apparatus and method for controlling the power of a laser beam is described. In one embodiment a rotatable Brewster element, rotated by a drive means, is disposed in the propagation path of a...
US20090161708 Optical Communication Light Source Unit and Wavelength Monitoring Control Method  
In the present invention, the extremely complicated setting and control and an extremely expensive optical component (wavelength locker) are not required, and optical output wavelength and optical...
US20110182307 TRACKING INJECTION SEEDING POWER BASED ON BACK FACET MONITORING (BFM) OF AN INJECTION SEEDED LASER  
A method of estimating an injection power of seed light injected into an injection-seeded transmitter. A back face monitoring (BFM) response of the injection-seeded transmitter is determined, and...
US20110116521 TRACKING INJECTION SEEDING POWER BASED ON BACK FACET MONITORING (BFM) OF AN INJECTION SEEDED LASER  
A method of estimating an injection power of seed light injected into an injection-seeded transmitter. A back face monitoring (BFM) response of the injection-seeded transmitter is determined, and...
US20080165813 METHOD AND APPARATUS FOR CONTROLLING LASER MODULATION BASED ON MEASUREMENTS OF AVERAGE LASER OUTPUT POWER  
Laser modulation is controlled by using a measurement of the average output power level of the laser to adjust the amplitude of the modulation current as necessary to prevent the laser from being...
US20060245457 System for adjusting optical characteristics and method thereof  
The invention relates to adjustment of optical output power and extinction ratio. A laser cuts resistors to obtain a desired resistance value, thereby adjusting an automatic power control loop...
US20090046751 METHOD AND APPARATUS FOR PRECISE CONTROL OF LASER PROCESSING OF MATERIALS  
The invention discloses a method and an apparatus for precise control of laser processing specifically for, but not limited to non-metallic substrate materials, said method comprising the steps of...
US20090154509 Laser Processing Apparatus, Method For Making Settings For The Laser Processing Apparatus, Program For Making Settings For The Laser Processing Apparatus, and Computer-Readable Recording Medium  
It is an object to enable control according to an optimum temperature condition for a wavelength conversion device. There are provided a laser medium for creating fundamental-wave laser light with...
US20070189345 Apparatus and method for controlling power of laser diode  
An apparatus and method for controlling power of a laser diode (LD) are provided, which allow the power of the laser diode (LD) affecting a performance of an optical recording apparatus to be...
US20090296754 Optoelectric Device for High-Speed Data Transfer with Electrooptically Tunable Stopband Edge of a Bragg-Reflector  
A device contains at least one wavelength-tunable multilayer interference reflector controlled by an applied voltage and at least one cavity. The stopband edge wavelength of the wavelength-tunable...
US20140036945 SHARED THRESHOLD/UNDERSHOOT LASER OUTPUT DRIVER  
A laser driver apparatus, system, and method include a single laser driver. One or more threshold levels and one or more undershoot levels can be digitally combined into a single output with...
US20150155686 OPERATING VERTICAL-CAVITY SURFACE-EMITTING LASERS  
Methods, systems, and devices are provided for operating a vertical-cavity surface-emitting laser. Operating a vertical-cavity surface-emitting laser can include determining an output voltage of a...
US20100272137 LASER AMPLIFIER SYSTEM AND LASER AMPLIFIER METHOD  
A laser amplification arrangement comprising a laser medium for producing an amplified laser emission as output signal from a useful signal to be amplified and a pump source has a switching...
US20100254417 Method Of Controlling A Frequency-Converted Laser Source Comprising An External Optical Feedback Component  
A method of controlling a frequency-converted laser source is provided where the laser source comprises a laser cavity, an external optical feedback component, a wavelength selective component,...
US20100226397 POWER STABILIZIED LASER DIODE ARRAY  
A system for controlling optical-power stability of emitting laser diodes (204), the laser diodes exhibiting temperature changes at the laser diode junctions (312), the temperature changes are...
US20100215068 Frequency Converted Laser Sources and Methods for Operating Frequency Converted Laser Sources  
A method for operating a frequency converted laser source comprising at least one semiconductor laser and a wavelength conversion device optically coupled to at least one semiconductor laser may...
US20100103967 CORRECTION OF POWER VARIATIONS IN LASER SOURCES  
The present invention relates generally to semiconductor lasers and laser projection systems. According to one embodiment of the present invention, a method of correcting output power variations...
US20170093119 LASER SYSTEM  
A laser system may include a plurality of laser apparatuses, a beam delivery device configured to bundle pulse laser beams emitted from respective laser apparatuses of the plurality of laser...
US20160344162 BEAM COMBINING DEVICE AND OUTPUT RECOVERY METHOD FOR BEAM COMBINING DEVICE  
A beam combining device causing beams from a plurality of light sources and one or a plurality of spare light sources to enter a beam combining optical system, and to be combined and output after...
US20160141827 Solid State Laser System  
A laser system comprising an active medium (105) and at least one laser diode (103) that is adapted to pump the active medium, characterized in that the laser diode is arranged such that a...

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