Class 372/14 - Mechanical

Subclass of Class 372 - Coherent light generators
Definition: Subject matter wherein the beam control device utilizes
No. of patents: 38
Last issue date: 01/22/2008

Number	Title	Issue Date
7321710	Apparatus for providing optical radiation Apparatus for providing optical radiation (10) comprising a pump array (8) for providing pump radiation (7), a first pump combiner (1), and a waveguide (3), wherein the pump radiation (7) from the pump array (8) is co...	01/22/2008
7280577	Pumping method for laser equipment Laser equipment in which pumping every dependence of output beam diameter and beam wavefront curvature is reduced. The total pumping energy of at least one of laser active media disposed beyond terminal laser beam waists, among beam waists, is approximately one-half...	10/09/2007
7257136	Laser apparatus A laser apparatus (100) for performing the laser machining operation by condensing the laser light output from a laser oscillator (3) is disclosed. A laser output value calculation unit calculates a laser output value (L1) based on a command val...	08/14/2007
7230960	Tunable external cavity laser with adjustable cavity length and mode-hop suppression Tunable external cavity lasers are used in applications such as interferometry, FM spectroscopy, and optical communications equipment testing. Mode hop free high bandwidth frequency modulation operation is desired in a tunable external cavity laser. This application...	06/12/2007
7199927	Optical element and optical add-drop module In an optical element, a first mirror stack layer is formed on a substrate, and a spacer layer made of a paraelectric material having a secondary electrooptic effect is formed thereon through a first conductive thin film. Further, a second mirror stack layer is form...	04/03/2007
7190707	Gas discharge laser light source beam delivery unit A beam delivery unit and method of delivering a laser beam from a laser light source for excimer or molecular fluorine gas discharge laser systems in the DUV and smaller wavelengths is disclosed, which may comprise: a beam delivery enclosure defining an output laser...	03/13/2007
7180929	Wafer-level test structure for edge-emitting semiconductor lasers Wafer-level stage testing of semiconductor lasers can be facilitated by directing a light beam emitted from the semiconductor laser toward a direction different from a path of the light beam as originally emitted from the laser. A test structure can be coupled to a ...	02/20/2007
7130319	All-fiber Q-switched laser An all-fiber Q-switched laser includes a gain fiber spliced between narrowband and broadband fiber gratings that define a polarization-dependent resonant cavity. The narrowband grating is, for example, formed in a PM fiber to create a polarization-dependent reflecti...	10/31/2006
7123632	Laser beam source In a laser beam source for projecting laser pulses, having a laser-active medium (10), a controllable pump device (11) for exciting the medium (10), a resonator (13) for inducing oscillation of the medium (10), which resonator has ...	10/17/2006
7120174	Pulsed laser apparatus and method A laser apparatus for generating optical pulses is disclosed, said laser apparatus has a reflecting gain element preferably including a fiber gain medium. The reflecting gain element is coupled to a controllable reflecting/transmitting module having a reflecting sta...	10/10/2006
7088747	Variable wavelength light source When a piezoelectric element 3 applies an external force to a plastic photonic crystal, the photonic crystal deforms, and accordingly, the photonic band gap easily changes. When the photonic band gap changes, transmission of light with a specific wavelength i...	08/08/2006
7083333	Optical packages and methods to manufacture the same Housings for use in optical packages, optical packages, and methods to manufacture the same are disclosed. A disclosed optical assembly includes a housing having a ferrule to receive an optical fiber; a lens; an annular mechanical interface; and a total internal ref...	08/01/2006
7072031	Alignment laser for use in cross-connects Apparatus and methods are disclosed for alignment of an input mirror and an output mirror in a photonic cross-connect. ...	07/04/2006
7006538	Apparatus for locking bending mechanism that bends reflex type wavelength selection element A an apparatus for locking a bending mechanism that bends a reflex type wavelength selection element for a bending mechanism that bends a reflex type wavelength selection element comprises a locking assembly. The locking assembly locks the bending mechanism. This al...	02/28/2006
6980572	Wavelength selectable light source A wavelength selectable light source is comprised of a two-dimensional (2-D) array of variable wavelength vertical-cavity surface-emitting lasers (VCSELs), wherein light beams emitted from the VCSELs are coupled into an output optical fiber. The light beams emitted ...	12/27/2005
6952435	Speckle free laser probe beam The present invention contemplates a method and apparatus to generate a laser probe beam free of speckles. The present invention employs a holographic phase plate inserted in a laser beam path to modulate the relative phase across the beam. The holographic phase pla...	10/04/2005
6950449	Passively Q-switched laser The present passively Q-switched laser comprises a condensing optical system for condensing a laser beam emitted from a laser light source onto the surface of the solid-state laser medium. The surface of a solid-state laser medium is disposed off the condensation po...	09/27/2005
6914916	Tunable controlled laser array A semiconductor laser capable of emitting in any one of standard communication wavelengths is of great practical value. To this end, a single semiconductor chip is fabricated on which many different distributed feedback (DFB) lasers are integrated. The device parame...	07/05/2005
6777646	Laser machining head for machining a workpiece by means of a laser beam A laser machining head for machining a workpiece by a laser beam. The head has a head housing through which the laser beam passes along a central axis. A carrier member for a lens optics system for focusing the laser beam is mounted on the head housing and is displa...	08/17/2004
6775315	Apparatus and method of directing a laser beam to a thermally managed beam dump in a laser system An optical bench for processing laser light in a laser system, including an optical bench housing, a beam dump mounted to the optical bench housing so as to be in optical communication therewith, steering optics mounted within the optical bench housing for directing...	08/10/2004
6724785	Tunable fabry-perot filters and lasers with reduced frequency noise A tunable optical cavity constructed from a fixed mirror and a movable mirror. The fixed mirror is attached to a substrate having a first electrically conducting surface. A support member having the moveable mirror supported thereon and having a second electrically ...	04/20/2004
6693926	MEMS-based selectable laser source A MEMS-based selectable laser output optical device (10) includes a laser source (12) having a laser output 14. A MEMS switch (16) is optically coupled to the laser source (12) for selectively coupling the laser output (14) from the laser source (12) in o...	02/17/2004
6647036	Integration and alignment of VCSEL's with MEMS using micromachining and flip-chip techniques A micro-electromechanical system assembly is designed to integrate a laser. More particularly, laser is a vertical cavity surface-emitting laser. The MEMS assembly includes a micro-electromechanical substrate having an upper surface and a lower surface, t...	11/11/2003
6493364	Beam shutter for excimer laser A beam shutter apparatus designed to handle high powered UV radiation is disclosed. The shutter includes a high reflectivity mirror mounted on a plate which can be rotated between a first position where the beam is reflected and redirected to a tool such ...	12/10/2002
6285693	Laser apparatus A laser apparatus which is capable of terminating a irradiating operation using a laser beam without fail by opening switches even if a component of an irradiation switch unit have trouble during the irradiating operation in a continuous irradiation mode....	09/04/2001
6252897	External mirror type wavelength tunable laser In an external mirror type semiconductor laser composed of a semiconductor laser having a structure wherein a reflection factor is reduced on one end plane thereof, and a lens as well as a grating type reflector disposed on the side of the end plane, resp...	06/26/2001
6084697	Integrated electro-optical package An integrated electro-optical package including a laser diode microscanner, and an automatic focus mechanism housed within a housing. The microscanner includes a semiconductor wafer, having formed as a part thereof a cantilevered portion having mounted th...	07/04/2000
5930282	Method and apparatus for adjusting the pump distribution in a laser An exemplary laser apparatus comprises an amplification medium which amplifies a coherent beam passing through the amplification medium, a pump which provides energy to the amplification medium, a tunnel having a first end proximate to the pump and a seco...	07/27/1999
5703890	Microlaser cavity, a solid state pulsed microlaser with active Q-switching by a micromodulator and method forming same The invention relates to a microlaser cavity, with active Q switching, characterized in that it comprises: an active laser medium (20), an input mirror (22) and an output mirror (24, 87) defining the cavity, a micromodulator with frustrated total internal refl...	12/30/1997
5699372	Wavelength-conversion solid-state laser A wavelength-conversion solid-state laser capable of generating a ultraviolet laser beam with high efficiency. The wavelength-conversion solid-state laser is made up of a phonon-based solid-state laser crystal, a semiconductor laser which emanates pump li...	12/16/1997
5682397	Er:YALO upconversion laser A laser comprises an upconversion laser gain element made of a crystalline xide host doped with activator ions for emitting output radiation at an output wavelength. The gain element is pumped by pumping radiation at a pumping wavelength that is longer tha...	10/28/1997
5596590	Beam diverting shutter for a laser beam A shutter mechanism having a slide element coupled to a support base by a plurality of roller bearings journaled between opposing pairs of guide rods is disclosed. The slide element and support base have corresponding beam apertures in alignment when the ...	01/21/1997
5528611	Repetitively Q-switched laser pumped by laer diodes and Q-switched with an intracavity variable speed moving aperture A laser is end pumped by laser diodes and is repetitively Q-switched using an intracavity variable speed moving aperture. The aperture apparatus includes a precision motor which drives a pair of matched aperture blades and produces efficient Q-switched op...	06/18/1996
5444723	Optical switch and Q-switched laser A length of an optical fiber having a core and a surrounding cladding is held by a block with a portion of said length having substantially all of its cladding removed on one side of the portion and being exposed, and an index overlay perturbation pad is ...	08/22/1995
4852107	Laser resonator with changable frequency of radiation A laser resonator has a semitransparent outlet mirror and a first mirror, with an active element between the mirrors, all the elements arranged perpendicular to the optical axis of the resonator. A shutter is provided behind the first mirror and a second ...	07/25/1989
4751706	Laser for providing rapid sequence of different wavelengths The optical cavity of the present laser has a folded optical path with a pair of reflective diffraction gratings and a gain cell in it. A disk with radially distributed perforations rotates in the optical path between the gratings and the gain cell. The l...	06/14/1988
4454882	Laser apparatus utilizing marking laser for triggering operative laser A laser apparatus includes an operating laser oscillator for generating an operating laser beam for medical treatment and a marker laser oscillator for generating a visible laser beam (i.e., marker laser beam) in order to mark a portion of the body cavity...	06/19/1984
4155046	Segmented amplifier configurations for laser amplifier An amplifier system for high power lasers, the system comprising a compact array of segments which (1) preserves high, large signal gain with improved pumping efficiency and (2) allows the total amplifier length to be shortened by as much as one order of ...	05/15/1979

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Class 372/14 - Mechanical