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| Application No. | Application Title | Issue Date |
| 20120106160 | THERMAL POINTER A laser source assembly for providing an assembly output beam includes a first emitter, a second emitter, and a third emitter. The first emitter emits a first beam along a first beam axis that is substantially parallel to and spaced apart from an assembly axis. The seco... | 05/03/2012 |
| 20120002689 | METHOD AND SYSTEM FOR NON-MECHANICAL RAPID TUNING OF AN OPTICAL PARAMETRIC OSCILLATOR An OPO is disclosed capable of rapid frequency tuning by non-mechanical means. The OPO includes a resonant cavity including one or more non-linear crystals in an optical path thereof. A pump laser pulse is transmitted into the resonant cavity simultaneously with a seed ... | 01/05/2012 |
| 20110243164 | PHASED LASER ARRAY WITH TAILORED SPECTRAL AND COHERENCE PROPERTIES Architectures for coherently combining an array of fiber-based lasers are provided. By matching their lengths to within a few integer multiples of a wavelength, the spatial and temporal properties of a single large laser are replicated, while extending the average or pe... | 10/06/2011 |
| 20110206076 | SEED SOURCE FOR HIGH POWER OPTICAL FIBER AMPLIFIER Methods and systems are provided to reduce stimulated Brillouin scattering in high power optical fiber amplifiers. In an embodiment, a seed source includes a narrow linewidth semiconductor laser driven with a current ramp that simultaneously sweeps the optical power and... | 08/25/2011 |
| 20110168913 | PHASE LOCKED SIDEBAND BEAMS BY BIAS MODULATION OF AN EXTERNAL CAVITY LASER DIODE HAVING A GRATING A device and a method enabling the enhancing of the modulation efficiency of lasers by matching the modulation frequency and the FSR of the laser. This is optionally achieved by eliminating the internal cavity of a laser diode (103) placed in an external cavity a... | 07/14/2011 |
| 20110155916 | LASER APPARATUS, DRIVING METHOD OF THE SAME AND OPTICAL TOMOGRAPHIC IMAGING APPARATUS The present invention provides a laser apparatus capable of improving a scan speed and achieving a scan rate equal to or more than 1 MHz, and an optical tomographic imaging apparatus using the laser apparatus as a light source. The laser apparatus includes a ring resona... | 06/30/2011 |
| 20110122903 | Wide-Band Wavelength-Variable Laser Device In a laser apparatus including an excitation light source and a resonator in which a laser medium is disposed between optical paths of a first mirror reflecting light in a desired wavelength band and a second mirror and a first wavelength selecting means is disposed bet... | 05/26/2011 |
| 20100046003 | METHOD AND DEVICE FOR GENERATING A SYNTHETIC WAVELENGTH In a method for generating a synthetic wavelength, particularly for an interferometric distance measuring setup, with a primary laser source defining a primary frequency U0 and at least a first sideband frequency U1 of the primary frequency U1... | 02/25/2010 |
| 20090316738 | DEVICE FOR AMPLITUDE AND PHASE PROGRAMMING OF LONG LIGHT PULSES WITH NARROW SPECTRAL BAND STARTING FROM A MODULATOR OF SHORT LIGHT PULSES WITH WIDE SPECTRAL BAND Device for adaptation of a programmable generator of ultra short wide spectral band light pulses, to long narrow spectral band light pulses comprising a laser source (1) of ultra-short wide spectral band pulses, a device (2) for dispersion of ultra-short p... | 12/24/2009 |
| 20090268765 | Intra-Cavity Phase Modulated Laser Based on Intra-Cavity Depletion-Edge-Translation Lightwave Modulators Use of depletion edge translation as an in cavity phase modulation mechanism in lasers. Aspects of the invention are especially relevant (without limitation) in transmitters for extended reach comprising an intra cavity phase and amplitude modulated laser for generation... | 10/29/2009 |
| 20090238224 | Directly Modulated Laser with Isolated Modulated Gain Electrode for Improved Frequency Modulation A DBR laser, such as a semiconductor DBR laser is disclosed having improved frequency modulation performance. The laser includes a split gain electrode and a tuning electrode. A modulating current encoding a data signal is injected into a first section of the gain elect... | 09/24/2009 |
| 20090225799 | OPTOELECTRONIC OSCILLATOR AND PULSE GENERATOR The objects of the present invention are to shorten a cavity length of an optoelectronic oscillator and to integrate on a semiconductor or SiO2-substrate. An optoelectronic oscillator 10 have an optoelectronic loop comprising a semiconductor laser 11, an o... | 09/10/2009 |
| 20090219957 | Radio-Frequency-Modulated Surface-Emitting Semiconductor Laser In a surface emitting semiconductor laser comprising a semiconductor chip (1), a first resonator mirror (4) and at least one further resonator mirror (8) which is arranged outside the semiconductor chip (1) and forms with the first resonator ... | 09/03/2009 |
| 20090161706 | 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 comprises a wavelength-dependent wavelength plate and a polarization beam spl... | 06/25/2009 |
| 20090086776 | Optical transmitter providing a plurality of transmitter units each having a thermo-electric cooler connected in series to each other In a semiconductor laser manufacturing method, a GaN single-crystal substrate is formed by slicing a GaN bulk crystal, grown on a c-plane, parallel to an a-plane which is perpendicular to the c-plane. In this substrate, crystal defects extending parallel to the c-axis d... | 04/02/2009 |
| 20090080054 | Speckle removing light source and lighting apparatus Provided are a speckle removing light source capable of removing speckle by using laser light whose wavelength is temporally changed and a lighting apparatus for producing an image from which the speckle is removed. Provided is a speckle removing light source, including... | 03/26/2009 |
| 20090027754 | PHOTONIC CRYSTAL RESONATOR, A COUPLED CAVITY WAVEGUIDE, AND A GYROSCOPE A rotating optical resonator, a waveguide and a method of use of waveguide are disclosed. The rotating optical resonator may include at least two modes of different resonant frequencies shiftable towards each other by reducing a magnitude of rotation rate, said modes be... | 01/29/2009 |
| 20090003842 | CHIRPED LASER WITH PASSIVE FILTER ELEMENT FOR DIFFERENTIAL PHASE SHIFT KEYING GENERATION Apparatus and methods for driving a transmitter to generate DNPSK signals is disclosed including generating N data streams comprising data symbols and for each of a plurality of sets of N simultaneous data symbols of the N data streams, imposing signals are on L of a pl... | 01/01/2009 |
| 20080317075 | Determining and Setting the Frequency Modulation Index of a Laser in a Cpt Frequency Standard A technique for determining the modulation index of a frequency-modulated laser source from the absorption spectrum that is produced when light from the laser passes through an alkali metal vapor cell. The absorption spectrum contains a primary minimum and a number of s... | 12/25/2008 |
| 20080317076 | CONTROLLING OUTPUT WAVELENGTH OF A LIGHT SOURCE A light source module including: an LD element outputting a laser light; a lens receiving the laser light and outputting a focused light; an optical filter having transmission wavelength characteristics, inputting the focused light, and outputting a transmitted light an... | 12/25/2008 |
| 20080310464 | Device for Generating and Modulating a High-Frequency Signal A device and method involving a plurality of lasers for generating and modulating a tunable, high-frequency signal for a wireless communication system, including an optical waveguide, may be produced using standard components of optical communication technology. A signa... | 12/18/2008 |
| 20080298405 | Modulation of terahertz radiation A method of modulation terahertz radiation comprising: (A) generating Terahertz radiation by pumping nonequilibrium electrons into a Magnon Gain Medium (MGM), wherein propagation of nonequilibrium electrons in the MGM causes generation of nonequilibrium magnons, and whe... | 12/04/2008 |
| 20080298404 | Radiation Beam Source Device For optical data storage applications, for example, for holographic storage applications, a radiation beam (12) with a flat intensity profile is needed. The radiation source device (1) of the invention comprises a beam shaper element (5) and a colli... | 12/04/2008 |
| 20080259977 | Waveguide Structure for Upconversion of Ir Wavelength Laser Radiation The invention relates to a waveguide structure for upconversion of IR wavelength laser radiation and is characterized in comprising a) at least one base substrate layer made essentially out of a moisture-stable mechanically- and/or temperature-stable material b) at leas... | 10/23/2008 |
| 20080192250 | Optical Emission Spectroscopy Process Monitoring and Material Characterization Methods and systems for control and monitoring processing of semiconductor materials with a focused laser beam. Laser light may be focused on a sample to excite optical emission at the sample surface during processing, which may include laser processing. Optical emissio... | 08/14/2008 |
| 20080175285 | Forced wavelength chirping in semiconductor lasers Methods of controlling semiconductor lasers are provided where, the time-averaged optical spectrum of the semiconductor laser is broadened by modulating the drive current at a relatively high frequency. Generally, the frequency of the drive current modulation is high en... | 07/24/2008 |
| 20080130693 | Driving method for laser light source device, laser light source device, image display device, monitor device, and illumination device A driving method for laser light source device includes: providing a laser light source device including a laser light source, a wavelength conversion element converting the wavelength of the light emitted from the laser light source, and a resonator mirror constituting... | 06/05/2008 |
| 20080101426 | LASER BEAM SOURCE DEVICE AND IMAGE DISPLAY APPARATUS INCLUDING THE LASER BEAM SOURCE DEVICE A laser beam source device includes a light source that emits light of a first wavelength, a wavelength converting element that converts a wavelength of the light of the first wavelength entered into a second wavelength, a multi-layer film mirror having a characteristic... | 05/01/2008 |
| 20080089369 | INJECTION SEEDING EMPLOYING CONTINUOUS WAVELENGTH SWEEPING FOR MASTER-SLAVE RESONANCE A method for effective injection seeding is based on continuous wavelength sweeping for matching the injected seeds with one or more longitudinal mode(s) of the slave oscillator in every pulse. This is achieved through rapidly varying laser drive current, as a result of... | 04/17/2008 |
| 20080056313 | Wavelength variable laser The present invention provides a directly modulatable wavelength variable laser that enables long distance and large volume communication with a simple and compact configuration. The wavelength variable laser includes a semiconductor optical amplifier, an optical filter... | 03/06/2008 |
| 20080037597 | Laser Apparatus In a first embodiment, the invention makes use of a Neodymium doped YAG (Nd: YAG) gain medium placed in an optical resonant cavity formed by two mirrors. Power extraction is maximized for a specific laser cavity. In particular the concave curvature on the rod ends contr... | 02/14/2008 |
| 20070280310 | Laser intra-cavity electronic wavelength tuner An apparatus for adjusting the wavelength of a laser capable of lasing at multiple wavelengths by using a single acousto-optical modulator and a pair of optical reflectors inside a laser cavity. By adjusting the frequency and amplitude of the radio-frequency source to t... | 12/06/2007 |
| 20070237193 | Electro-absorption modulated laser using coupling for chirp correction An electroabsorption modulated laser (EML) which uses coupling for chirp correction is disclosed. ... | 10/11/2007 |
| 20070177640 | Practical approach for one mJ femtosecond fiber laser A fiber Chirped Pulse Amplification (CPA) laser system includes a fiber mode-locking oscillator for generating a laser and stretching into a few hundreds ps-10 ns pulse by a fiber stretcher for projecting into an acoustic-optic (AO) functioning as a pulse picker for gen... | 08/02/2007 |
| 20070147750 | Laser device and exposure device using the same In a laser module, a laser beam which is emitted from a laser element is focused by a condensing optical system and caused to enter an incidence end of an optical fiber. A laser device is provided with a plurality of these laser modules. Emission end portions of the op... | 06/28/2007 |
| 20070081565 | Wavelength tunable optical transmitter and optical transceiver A wavelength tunable laser module for DWDM is used, in which a single electroabsorption modulator integrated laser is mounted and an oscillation wavelength is made tunable by temperature control. Driving conditions of a laser and a modulator are determined such that the... | 04/12/2007 |
| 20070081566 | Integrated modulator-laser structure and a method of producing same In an arrangement comprised of an electro-absorption modulator integrated with a laser source, the electro-absorption modulator includes a respective metal contact pad, wherein the metal pad is positioned over a localised semi-insulating layer island, such as a Fe—InP... | 04/12/2007 |
| 20060239305 | Optically triggered Q-switched photonic crystal laser and method of switching the same An improvement in a method of controlling lasing in a semiconductor laser fabricated in a photonic crystal laser having a plurality of holes into which a birefringent material with low refractive losses and low optical loses with controllable spatial refractive index or... | 10/26/2006 |
| 20060176916 | Laser resonator and frequency-converted laser An optically pumped, in particular diode-pumped, continuous solid-state laser produces a primary laser beam whose frequency is converted into the visible or ultraviolet spectral range by means of one or more downstream passive resonators with non-linear crystals. At rel... | 08/10/2006 |
| 20060114950 | Laser diode module with a built-in high-frequency modulation IC A laser diode module with a built-in high-frequency modulation IC used to remove the reflected noise generated as the laser beam reads the signal to be played back and directly packaged within a metal cap. The high-frequency modulation IC creates an electrical connectio... | 06/01/2006 |
