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| Number | Title | Issue Date |
| 8126028 | Quickly replaceable processing-laser modules and subassemblies Pre-aligned, kinematically mounted modules including processing lasers, beam trains, and individually calibrated control beams are quickly and easily replaced on subassembly bases with minimal in situ alignment, and can maintain working-spot position to micron toler... | 02/28/2012 |
| 7991038 | Laser arrangement and resonator element for such a laser arrangement In a laser arrangement comprising at least one laser medium for producing a laser emission, a laser resonator having a beam path with a length of at least 20 cm and with at least one end mirror, the beam path within the laser resonator is formed at least partly by f... | 08/02/2011 |
| 7965757 | Thermal distortion compensation for laser mirrors A laser mirror assembly is disclosed with improved pointing stability. An elongated mirror includes a concave reflecting portion. A pair of elongated planar portions extend parallel to the concave reflecting portion on either side thereof. The planar portions are st... | 06/21/2011 |
| 7916769 | Optical package having deformable mirrors for focus compensation An optical package includes a semiconductor laser, an adjustable mirror and a wavelength conversion device comprising a waveguide portion. The semiconductor laser, adjustable mirror, and wavelength conversion device are oriented to form an optical pathway between an... | 03/29/2011 |
| 7876804 | Laser oscillator A first optical base having a high-reflection mirror and a second optical base having a partial-reflection mirror are arranged in parallel to each other on both sides of an oscillator housing. A guide light source emits a guide light for aligning optical components ... | 01/25/2011 |
| 7751462 | Mono-slab laser cavity A YAG/Nd:YAG block where an Nd:YAG block ends in a peak integrated inside a YAG block. The YAG block has reflective surfaces positioned at 45° to one another. The angled reflective surfaces serve as a “mirror” within the laser cavity to effectively increase the... | 07/06/2010 |
| 7729404 | Method for aligning optical packages A method is given for aligning an optical package comprising a laser, a wavelength conversion device, at least one adjustable optical component, and at least one actuator. The adjustable optical component may be moved to a command position by applying a pulse width ... | 06/01/2010 |
| 7664159 | Thermal distortion compensation for laser mirrors A laser mirror assembly is disclosed with improved pointing stability. An elongated mirror includes a concave reflecting portion. A pair of elongated planar portions extend parallel to the concave reflecting portion on either side thereof. The planar portions are st... | 02/16/2010 |
| 7653116 | Portable laser head A portable laser head has a single-piece holder configured with a plurality of spaced-apart nests. The nests are arranged to receive at least a non-linear frequency converter, a V-shaped beam splitter and a dump collimator. Alternatively, the holder has multiple nes... | 01/26/2010 |
| 7460578 | On-chip lenses for diverting vertical cavity surface emitting laser beams An optical device includes a chip containing a Vertical Cavity Surface Emitting Laser (VCSEL) active region that produces a laser beam on a first axis. The VCSEL can further include a post having a central axis offset a distance from the first axis. A lens can be mo... | 12/02/2008 |
| 7457343 | Lens structure, optical transmitter, and method for producing same In one embodiment, a lens structure has an object surface, an image surface, and an axicon mirror. The axicon mirror is defined by an inner diameter, an outer diameter, and a tilt angle, with the tilt angle being defined by a plane of the axicon mirror and the surfa... | 11/25/2008 |
| 7436874 | Laser device According to the present invention, a first p-side electrode 7A made of metal which is provided with regularly arranged holes 10 having a diameter smaller than a laser oscillation wavelength and a second p-side electrode 7B arranged around the p... | 10/14/2008 |
| 7433372 | Device and method to stabilize beam shape and symmetry for high energy pulsed laser applications A beam mixer for increasing intensity symmetry along a selected axis of a beam (wherein the beam extends from a first edge to a second edge along the axis) is disclosed and may include a plurality of mirrors establishing a spatially inverting path. For the beam mixe... | 10/07/2008 |
| 7411989 | Mechanically Q-switched COlaser A CO2 laser has a resonator mirror that oscillates about an axis perpendicular to the resonator axis through an angular range of oscillation sufficient that the resonator is only able to deliver radiation for a fraction of an oscillation period of the mir... | 08/12/2008 |
| 7394840 | Virtual optical axis determination using machine vision for passive optical alignment Alignment of a laser apparatus is achieved by actively aligning components of the laser apparatus and then passively deriving an optical axis from that alignment. This passive derivation can be achieved by identifying features of an actively aligned optical element,... | 07/01/2008 |
| 7382812 | Solid state laser device The transmittance of an etalon relative to an oscillating line having the wavelength of 1061.6 to 1062.2 nm by an Nd:YAG laser medium 3 is set to 0.9 or lower (the maximum value of the transmittance is 1.0). The oscillating line of the wavelength of 1061.6 to... | 06/03/2008 |
| 7371017 | Automated laser pressing system Au automated laser pressing system assembles and aligns a laser header subassembly to a lens housing. The automated system generally includes a precise press system and a fast fiber alignment system. The press system precisely presses the housing onto the header, or... | 05/13/2008 |
| 7367254 | Cutter with laser generator that irradiates cutting position on workpiece to facilitate alignment of blade with cutting position A cutter including a base, a holder, a cutter blade portion, and a laser generator. The holder is supported on the base portion in an upright posture. The cutter blade portion supports a moving blade. The cutter blade portion is supported on the holder movable betwe... | 05/06/2008 |
| 7369597 | Laser output light pulse stretcher Providing a high peak power short pulse duration gas discharge laser output pulse comprises a pulse stretcher a laser output pulse optical delay initiating optic diverting a portion of the output laser pulse into an optical delay having an optical delay path and com... | 05/06/2008 |
| 7352791 | Optical systems including wavefront correcting optical surfaces The present invention relates to optical systems, beam expanding assemblies, line narrowing modules, and lasers having refractive optical elements with wavefront correcting optical surfaces. The present invention enables the skilled artisan to provide optical system... | 04/01/2008 |
| 7346093 | DUV light source optical element improvements A high power narrow band, high repetition rate laser light source optical improvement apparatus and methods are disclosed with a fast angularly positionable mirror having a mirror mounting frame, a reflective optic with a coefficient different from that of the mount... | 03/18/2008 |
| 7342599 | Optical scanner for scanning a laser beam in accordance with an image signal In a disclosed optical scanner, an optical axis adjustment is made by moving a circuit board on which a light emitting device open-type semiconductor laser is mounted along a base face of an optical box. For a high-quality optical scanning, the circuit board is atta... | 03/11/2008 |
| 7339974 | Tunable semiconductor laser A tunable semiconductor laser includes gain medium, wavelength-selective element and a laser mode matching element. The wavelength-selective element comprises a first light absorbing plate operatively coupled to the laser mode matching element and provided with an a... | 03/04/2008 |
| 7336691 | Apparatus for combining beams from repetitively pulsed lasers along a common path Two pulse sequences are delivered by two lasers. A rotating segmented mirror having one or more reflective areas and one or more transmissive areas is rotated synchronously with the delivery of the pulse sequences to transmit pulses from one sequence, and to reflect... | 02/26/2008 |
| 7321114 | Apparatus and method for beam drift compensation An apparatus and method for maintaining a desired position of a collimated light beam are provided. An optical system includes one or more passive optical elements movably positioned in the beam path. Beam position is responsive to movement of at least one of the pa... | 01/22/2008 |
| 7320423 | High speed linear and rotary split-axis wire bonder A wire bonding machine is disclosed for bonding a wire to a semiconductor device. The wire bonding machine includes a wire bonding head having a bonding tool mounted to it. The bonding tool is adapted to attach a wire end to a semiconductor device. At least a portio... | 01/22/2008 |
| 7317739 | Mode-locked laser using a mode-locking wavelength selective reflector In accordance with the invention, a mode-locked laser comprises an optical gain medium disposed within an optical cavity formed by a first reflector and a wavelength selective second reflector to achieve mode-locking operation. Advantageously, the wavelength reflect... | 01/08/2008 |
| 7317740 | Mode locker for fiber laser A mode locking device of fiber laser includes a bar structural body, having a central hollow region, extending along a reference line of the bar structural body. The central hollow region has two ends coupled with two collimators on a fiber laser loop. A polarizatio... | 01/08/2008 |
| 7317746 | Method and device for passive alignment The present invention is related to a method and device for precision and passive alignment such as precision and passive alignment technology for low cost array fibre access components. A laser carrier is passively aligned to an MT-interface using alignment structu... | 01/08/2008 |
| 7300212 | Semiconductor optical package A semiconductor optical package for optical communication includes a cooling plate dissipating internal heat generated from the semiconductor optical package and having one or more grooves passing through top and bottom surfaces thereof. There is a housing having on... | 11/27/2007 |
| 7296359 | Laser alignment system and method Provided is a device/method of alignment of a laser's beam with the laser's support system so that the beam is substantially parallel in a chosen direction with respect to a reference line on the laser's support system. ... | 11/20/2007 |
| 7293923 | Laser module for circular saw A laser module used in a circular saw to guide cutting of the saw blade of the circular saw is constructed to have a hollow housing, a focal lens mounted in the housing, a laser diode mounted in the housing behind the focal lens and beyond the focus of the focal len... | 11/13/2007 |
| 7294364 | Method for curing composite materials A curing light system useful for curing light activated composite materials is disclosed. Various configurations of light emitting semiconductor chips and heat sinks are disclosed, as well as various structures and methods for driving, controlling and using them. | 11/13/2007 |
| 7286764 | Reconfigurable modulator-based optical add-and-drop multiplexer An optical add and drop multiplexer system comprising a first module for providing a first signal; a second module for providing a second signal; and a modulator for receiving a channel of the first signal at a first location, the first location configured to actuat... | 10/23/2007 |
| 7286579 | Apparatus and method for adjusting external-cavity lasers Adjustment of a tunable external-cavity laser is simplified by incorporating a mount that includes a base, a main body, a reflecting surface, a diffracting surface and a hinge coupling the main body to the base. The laser additionally includes a light source, a conv... | 10/23/2007 |
| 7283152 | Collimation assembly with an adjustment bracket capable of flexing when receiving a light source A collimation assembly is associated with a printhead housing for generating a substantially collimated laser beam. The collimation assembly comprises: a collimation housing mounted to the printhead housing to support a collimation lens; an adjustment bracket positi... | 10/16/2007 |
| 7283575 | Narrow band electric discharge gas laser having improved beam direction stability An electric discharge, narrow band gas laser with improvements in wavelength stability. Improvements result from reduced laser beam directional fluctuations or fast correction of those fluctuations. Applicant has discovered, using an extremely sensitive knife edge o... | 10/16/2007 |
| 7277112 | Multi-beam light source unit and laser scanning unit having the same structure A multi-beam laser scanning unit including a laser diode unit for discharging a plurality of laser beams, a rotational member for supporting the diode unit and rotating to a substantially aligned position between a plurality of the laser beams, a fixing member for s... | 10/02/2007 |
| 7277467 | Externally aligned laser module Disclosed is a laser module case having a snout disposed within a wall of the case, wherein the snout may allow alignment of a laser with an optical fiber after closure of the case. The snout has an inner end, outer end and longitudinal hollow. An optical fiber asse... | 10/02/2007 |
| 7272161 | Epitaxial layer for laser diode ridge protection A semiconductor laser formed from a semiconductor wafer has an active layer, at last two optical cladding layers, and a ridge waveguide. A ridge top surface of the ridge waveguide is deposited from a first surface of the semiconductor laser wafer by a first height. ... | 09/18/2007 |
