Patent application number | Description | Published |
20080259986 | Laser light source apparatus and image generating apparatus using such laser light source apparatus - Disclosed is a laser light source apparatus. The laser light source apparatus includes a pumping light source and a pair of resonator mirrors. In the laser light source apparatus, the pumping light source includes at least a laser medium and a wavelength conversion element, and the laser medium is pumped by light having a multi-transversal mode pattern and the wavelength conversion element are irradiated with a line beam of fundamental wave obtained by the oscillation by the laser medium to output a line beam of converted wave. The laser light source apparatus further includes at least one reflector bending light path is provided in the resonator such that a longitudinal direction of the line beam of fundamental wave is approximately perpendicular to an incident plane of the reflection unit. | 10-23-2008 |
20090052481 | Laser light source device and image generating device using same - Disclosed herein is a laser light source device including a pumping light source; a pair of resonator mirrors; a laser medium and a wavelength converting element within a resonator formed by the resonator mirrors; the laser medium being pumped by light in a transverse multi-mode pattern, the wavelength converting element being irradiated with a linear fundamental wave obtained by oscillation of the laser medium, and a linear converted wave being output; a reflecting part for folding back a resonant light path, the reflecting part being disposed on the light path between the laser medium and the wavelength converting element; an end surface of one of the laser medium and the wavelength converting element being formed as an inclined surface at other than a Brewster angle; and a polarizing film disposed on the inclined surface. | 02-26-2009 |
20100002731 | LASER LIGHT SOURCE DEVICE AND LASER IRRADIATION APPARATUS USING THE SAME - A laser light source device includes a pump light source which emits transverse-multimode light; a plurality of resonator mirrors which define a resonator, at least part of the resonator mirrors outputting light to the outside, where the output light having plural wavelengths; a laser medium arranged in the resonator, the laser medium being pumped with the transverse-multimode light emitted from the pump light source; and a wavelength conversion element arranged in the resonator, the wavelength conversion element being irradiated with a transverse-multimode line beam of fundamental wave obtained by oscillation at the laser medium and outputting a line beam of converted wave. | 01-07-2010 |
20100220384 | LASER DEVICE, LASER DISPLAY APPARATUS, LASER RADIATING APPARATUS, AND NONLINEAR OPTICAL ELEMENT - A laser device, includes: a fundamental wave generating portion configured to generate a plurality of fundamental waves having wavelengths which are different from each other in at least one set thereof, the fundamental wave generating portion having a semiconductor laser having a plurality of luminous points, and a Bragg reflection structure; and a nonlinear optical element in which a poling structure adapted to pseudophase matching for the wavelengths of the plurality of fundamental waves emitted from the fundamental wave generating portion, respectively, is formed variatively along a propagating direction of the plurality of fundamental waves. | 09-02-2010 |
20110188003 | ILLUMINATION DEVICE AND PROJECTION-TYPE IMAGE DISPLAY DEVICE - A light source having (a) a light emitter that emits a light beam along a first axis, the light beam having a highest degree of anisotropic coherency in a second axis perpendicular to the first axis; and (b) a light multiplexer positioned optically downstream of the light emitter, the multiplexer having an axis of multiplexing perpendicular to the first axis, the second axis and the axis of multiplexing being oriented at an angle with respect to each other that is other than 0, 90, 180 and 270 degrees. | 08-04-2011 |
20120307620 | LIGHT SOURCE DEVICE, OPTICAL PICKUP, AND RECORDING DEVICE - A light source device configured as a master oscillator power amplifier includes a mode locked laser unit having an external resonator and a semiconductor optical amplifier that amplifies and modulates laser light emitted from the mode locked laser unit. The width in a lateral direction of a waveguide on an incident side of the semiconductor optical amplifier is set so that a horizontal lateral mode of the waveguide on the incident side of the semiconductor optical amplifier becomes multiple modes, and a magnification conversion unit that converts a magnification of incident light from the mode locked laser unit to the semiconductor optical amplifier is disposed so that a basic mode is selectively excited in optical coupling on the incident side of the semiconductor optical amplifier. | 12-06-2012 |
20140177661 | PULSE SHAPING DEVICE AND PULSE SHAPING METHOD - There is provided a pulse shaping device including a pulse generator configured to generate pulsed light by using a semiconductor laser for emitting light of a predetermined wavelength, and an optical member provided in a subsequent stage of the pulse generator and configured to compress a pulse time width of the pulsed light. The pulsed light has a first frequency dispersion state. The optical member imparts a second frequency dispersion state to the pulsed light, the second frequency dispersion state being a frequency dispersion state opposite to the first frequency dispersion state. | 06-26-2014 |
20150325980 | LASER EMITTING APPARATUS AND MASTER OSCILLATOR POWER AMPLIFIER SYSTEM - There is provided a laser emitting apparatus including a semiconductor laser, a grating positioned relative to the semiconductor laser to form a resonator structure therebetween, and an optical system positioned between the semiconductor laser and the grating. The optical system is configured and arranged so that confocal points are formed on both a light emitting surface of the semiconductor laser and a reflection surface of the grating. | 11-12-2015 |