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US20100079848 SPECKLE REDUCTION IN DISPLAY SYSTEMS THAT EMPLOY COHERENT LIGHT SOURCES  
Speckle effect in display system is reduced by utilizing the instability of phase-coherent light and the transmission of the instable phase-coherent light through a multi-mode optical fiber with a...
US20090225798 Optical apparatus and method  
An optical apparatus comprising a gain medium exhibiting polarisation dependent absorption along two axes, the gain medium having a weakly absorbing axis and a strongly absorbing axis, an optical...
US20090245303 LASER LIGHT SOURCE DEVICE  
A laser light source device is disclosed, which reduces the coherence of the laser light and inexpensively achieves a visually recognizable level of speckle reduction without use of a mechanical...
US20060013271 Variable attenuator  
Linearly polarised laser pulses are variable attenuated by rotating a plate (20) with respect to the optical axis (10). A second plate (21) may be arranged in a symmetrical manner to compensate...
US20140198814 WAVELENGTH MODULATION HETERODYNE LIGHT SOURCE  
The present invention discloses a wavelength modulation heterodyne light source, which comprises: a modulation unit, a wavelength modulated light source and a birefringent crystal. The modulation...
US20080267232 Micro-Structured Optic Apparatus  
A micro-structured optics apparatus includes a concave microlens to expand a beam of light, a reflector to provide a first reflection of at least a portion of the beam of light and a micro-Fresnel...
US20140056321 OPTICAL AMPLIFIER AND PROCESS  
An optical amplifier receives a seed laser having a wavelength of 1064 nm. Amplification occurs in a segmented Nd:YVO4 gain medium pumped with a pump source. Each segment of the gain medium has a...
US20090225795 OPTICAL FREQUENCY SYNTHESIZER AND OPTICAL FREQUENCY SYNTHESIZING METHOD USING FEMTOSECOND LASER OPTICAL INJECTION LOCKING  
The present invention relates to an optical frequency synthesizer and an optical frequency synthesizing method using femtosecond laser optical injection locking, which inject a femtosecond laser...
US20080101424 Output power control for harmonic-generating laser  
In harmonic-generating laser apparatus, plane-polarized fundamental radiation of a laser is converted to harmonic radiation by an optically nonlinear crystal. The power of harmonic radiation...
US20080259976 Organic Columnar Thin Films  
A thin film includes a substrate and a transparent, porous film of organic material, such as 8-hydroxyquinoline aluminum. The organic material is vapor deposited on the substrate such that the...
US20090285245 FIBER-BASED ULTRAFAST LASER  
An ultrafast laser system includes a seed laser that provides a signal laser pulse and a fiber-based first chirped reflective Bragg grating that reflects the signal laser pulse propagating along a...
US20090296744 Laser Based Identification of Molecular Characteristics  
Enantiomers are characterized, identified, synthesized and/or modified with a shaped laser pulse. In another aspect of the present invention, binary shaping and circular polarization are employed...
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...
US20080225909 LASER LIGHT SOURCE DEVICE, OPTICAL INFORMATION RECORDING DEVICE, AND OPTICAL INFORMATION REPRODUCING DEVICE  
The hologram recording technology expected to realize ultrahigh-density information recording is one of the post Blu-ray Disc technology. When we think about developing a drive based on this...
US20050207457 Method for selecting the polarization of the laser beam oscillating inside a laser cavity  
A method for selecting the polarization of the laser beam inside a laser cavity, which provides generation of a laser beam inside said resonant laser cavity, having optical media, which include...
US20090080479 METHOD AND SYSTEM FOR OPERATING AN ATOMIC CLOCK USING A SELF-MODULATED LASER WITH ELECTRICAL MODULATION  
A polarization gain medium such as an emitting laser diode provides the optical pumping. An atomic vapor cell is positioned in the laser cavity providing spontaneous push-pull optical pumping...
US20140205293 EXTERNAL CAVITY LASER AND SYSTEM FOR WAVE DIVISION MULTIPLEXING-PASSIVE OPTICAL NETWORK  
The embodiments of the present invention disclose an External Cavity Laser (ECL), relate to the field of Wave Division Multiplexing-Passive Optical Network (WDM-PON) technology, and effectively...
US20110075686 HIGH ENERGY, ALL FIBER, MODE LOCKED FIBER LASER  
Methods and systems for generating high energy, mode locked, femtosecond and picosecond laser pulses are disclosed, including generating electromagnetic radiation from a pump laser; coupling the...
US20090238223 Laser Irradiation Apparatus  
A laser irradiation apparatus is provided in which the occurrence of adverse effects on an object to be irradiated with a laser beam due to the difference in the polarization state between pulsed...
US20110317727 WAVELENGTH CONVERSION LIGHT SOURCE, OPTICAL ELEMENT AND IMAGE DISPLAY DEVICE  
A wavelength conversion laser light source, including a solid-state laser medium configured to generate fundamental light; a wavelength conversion element configured to convert the fundamental...
US20090161706 OPTICAL LEVEL CONTROL DEVICE, METHOD FOR CONTROLLING SAME, AND LASER APPLICATION DEVICE  
The optical level control device independently controls the intensities of two beams having different wavelengths that are emitted from a laser oscillator, and the optical level control device...
US20090135860 Cross Modulation-Based Opto-Electronic Oscillator with Tunable Electro-Optic Optical Whispering Gallery Mode Resonator  
Examples and implementations of photonic devices and techniques based on whispering gallery mode resonators formed of electro-optic materials to effectuate cross modulation between whispering...
US20090219960 PHASE AND POLARIZATION CONTROLLED BEAM COMBINING DEVICES AND METHODS  
A controller, such as a programmable logic controller, may manipulate a phase and/or polarization module to alter and/or control the phase and polarization of input beams. Utilizing active phase...
US20120281724 Tuneable Laser Source  
Described herein is a laser (1) having a cavity for supporting oscillation of an electromagnetic signal to provide lasing action. A gain element (5) provides a source of stimulated emission for...
US20130064256 CONTROLLABLE MULTI-WAVELENGTH LASER SOURCE  
In at least one embodiment a laser system includes a fiber laser source, a polarization controller and a wavelength converter. The relative power distribution between a pump wavelength and a...
US20090238218 Polarization Stable Lasers  
Techniques, devices and applications of polarization stable lasers to provide laser operations against changes, variations or fluctuations in optical polarization in a laser cavity.
US20140050239 POLARIZATION PURITY CONTROL DEVICE AND GAS LASER APPARATUS PROVIDED WITH THE SAME  
A degree of polarization control device includes: a calcium fluoride crystal substrate for transmitting a laser beam;a polarization monitor for measuring the degree of polarization of a laser beam...
US20120177072 POLARIZATION PURITY CONTROL DEVICE AND GAS LASER APPARATUS PROVIDED WITH THE SAME  
A degree of polarization control device includes: a calcium fluoride crystal substrate for transmitting a laser beam;a polarization monitor for measuring the degree of polarization of a laser beam...
US20110122902 LASER OSCILLATOR AND FILTERING METHOD  
Provided is a fiber laser including a mode filter for selectively attenuating, among modes included in laser light propagating through a multi-mode fiber, any mode other than a radially polarized...
US20100158054 LASER SYSTEM WITH PICOSECOND PULSE EMISSION  
The invention relates to a device (1) for generating short pulses, said device being characterised in that it comprises: a polarised pulse laser (10, 2, 3) having a polarisation direction; a...
US20100128747 POLARIZATION PURITY CONTROL DEVICE AND GAS LASER APPARATUS PROVIDED WITH THE SAME  
A degree of polarization control device includes: a calcium fluoride crystal substrate for transmitting a laser beam;a polarization monitor for measuring the degree of polarization of a laser beam...
US20170171955 EXTREME ULTRAVIOLET LIGHT GENERATION SYSTEM AND METHOD OF GENERATING EXTREME ULTRAVIOLET LIGHT  
An extreme ultraviolet light generation system may include a laser system and a controller. The laser system may irradiate the first target with a first pulse laser beam to disperse the first...
US20170126323 MICROFABRICATED OPTICAL APPARATUS  
A microfabricated optical apparatus that includes a light source driven by a waveform, a turning mirror, and a beam shaping element, wherein the waveform is delivered to the light source by at...
US20160336714 DENSE WAVELENGTH BEAM COMBINING WITH VARIABLE FEEDBACK CONTROL  
An external cavity laser apparatus according to an embodiment of the invention is provided. The external cavity laser apparatus includes a plurality of beam emitters that collectively emit a...
US20160226211 LASER  
A laser comprises a first end mirror and a second end mirror defining an optical cavity therebetween, a first gain medium and a second gain medium positioned in the optical cavity, at least one...
US20160164258 LASER DEVICE WITH ADJUSTABLE POLARIZATION  
The invention describes a laser device (10) comprising an array (50) of laser emitters (100) and a control unit (200), the array (50) comprises at least a first sub array (110) of laser emitters...
US20160072250 GENERATION OF A HIGH POWER PULSE-LASER USING FIELD GENERATED COHERENCE  
A laser system including a laser cavity, a gain medium disposed in the laser cavity, a pump configured to excite an atom of the gain medium to an excited state, an optical device configured to...
US20150333475 Tunable U-Laser Transmitter With Integrated Mach-Zehnder Modulator  
According to the present invention, a monolithically integrated laser 102, also referred to herein as a U-laser 102, or integrated dual optical emission laser 102, having a first optical emission...
US20150333472 BIDIRECTIONAL LONG CAVITY SEMICONDUCTOR LASER FOR IMPROVED POWER AND EFFICIENCY  
The invention relates to bi-directional long-cavity semiconductor lasers for high power applications having two AR coated facets (2AR) to provide an un-folded cavity with enhanced output power....
US20150311673 Polarization Control in High Peak Power, High Brightness VCSEL  
A new VCSEL design is presented to achieve high output power and high brightness with a strong selection of a linear polarization state in high speed pulsing operation. Higher output power is...
US20150102864 LIGHT EMITTING DEVICE AND ATOMIC OSCILLATOR  
A light emitting device includes a first semiconductor multilayer film mirror of a first conductivity type, a second semiconductor multilayer film mirror of a second conductivity type that is...
US20150010029 Laser Pulse Shaping Method  
A laser pulse shaping method is configured for microscopically viewing and modifying an object. A temporal modulation and a two-dimensional spatial modulation of laser pulses are carried out. At...
US20140362881 LASER BEAM COMBINING DEVICE  
A laser beam combining device includes three lasers, a polarizer, and a mode converter. The second laser device, the mode converter, and the third laser device are located on a first straight line...
US20140124685 SYSTEM AND METHOD FOR GENERATING EXTREME ULTRAVIOLET LIGHT, AND LASER APPARATUS  
An extreme ultraviolet light generation system used with a laser apparatus may be provided, and the extreme ultraviolet light generation system may include: a chamber including at least one window...
US20140036943 PATTERNED RETARDER AND OPTICAL ENGINE FOR LASER PROJECTION APPARATUS  
A patterned retarder is described that may be used with a laser source array to obtain a combined beam suitable for three-dimensional laser image projection using orthogonal polarization states...
US20130266034 METHODS AND APPARATUSES FOR ENGINEERING ELECTROMAGNETIC RADIATION  
laser devices described may emit a beam of electromagnetic radiation having a large wavelength (e.g., mid-infrared, far-infrared) and exhibiting a low angle of divergence. In some embodiments, the...
US20130243016 LASER ANTIREFLECTION DEVICE AND LASER APPARATUS COMPRISING SAME  
A laser anti-reflection device includes a polarizing beam splitter, a λ/4 wave plate and an absorber disposed in an outgoing light path of a laser emitting linearly polarized light with a...
US20130208742 OPTICAL DEVICE, LASER APPARATUS, AND EXTREME ULTRAVIOLET LIGHT GENERATION SYSTEM  
An optical device may include: an optical module disposed in a beam delivery path of a laser beam; a beam adjusting unit disposed in the beam delivery path for adjusting the beam delivery path of...
US20130094529 LASER APPARATUS, METHOD FOR GENERATING LASER BEAM, AND EXTREME ULTRAVIOLET LIGHT GENERATION SYSTEM  
A laser apparatus for generating extreme ultraviolet (EUV) light at a wavelength of approximately 13 nm is provided. The laser apparatus may be combined with a reduced projection reflective...
US20130034116 SLAB AMPLIFICATION DEVICE, LASER APPARATUS, AND EXTREME ULTRAVIOLET LIGHT GENERATION SYSTEM  
An EUV light generation system includes a driver laser comprising a master oscillator such as a semiconductor laser, a spatial filter, gas slab amplification devices, relay optical systems, and...

Matches 1 - 50 out of 56 1 2 >