37 patents
Utility
Pulse Equalization In Q-switched Gas Lasers
18 May 23
A Q-switched gas laser apparatus with bivariate pulse equalization includes a gas laser, a sensor, and an electronic circuit.
Vernon SEGUIN, David P. SCHMELZER, Joel FONTANELLA, Peter ROSENTHAL
Filed: 28 Oct 22
Utility
Scanning Radial Laser Processing with Bi-conical Reflection
20 Apr 23
An apparatus for radial laser processing of a workpiece, located on a center axis, includes a laser beam scanner directing a laser beam along but offset from the center axis, and a bi-conical reflector system including first and second conical mirror surfaces surrounding the center axis.
Matthew R. KOLE
Filed: 10 Oct 22
Utility
Cantilever Device for Shifting Optically Nonlinear Crystal
30 Mar 23
A device for shifting a nonlinear crystal arranged to frequency convert a laser beam includes an anchor, a mount for holding the nonlinear crystal, and two parallel flexures each interconnecting the mount and the anchor to cantilever the mount from the anchor.
Henning BONN, Rüdiger VON ELM, Christian KANNENGIESSER
Filed: 27 Sep 21
Utility
Actively Cooled End-pumped Solid-state Laser Gain Medium
26 Jan 23
An actively cooled end-pumped solid-state laser gain device includes a bulk solid-state gain medium.
Qize SHU, Dmitri SIMANOVSKI
Filed: 29 Jun 22
Utility
Thermally Actuated Adaptive Optics
29 Dec 22
A thermally actuated adaptive optic includes a base, a reflector, and a plurality of actuators coupled therebetween.
Michael HERTWIG, Keith M. MURDOCH
Filed: 28 Jun 21
Utility
Method and Apparatus for Laser Annealing
10 Nov 22
A layer on a substrate is laser annealed by pulses in a plurality of laser beams formed into a uniform line beam.
Paul VAN DER WILT
Filed: 15 Apr 22
Utility
Resonantly Enhanced Frequency Conversion with Adaptive Thermal-lensing Compensation
20 Oct 22
A system for resonantly enhanced frequency conversion includes a nonlinear crystal for frequency converting a pump laser beam, and mirrors forming a ring resonator for the pump laser beam such that a closed propagation path of the pump laser beam, inside the ring resonator, passes through the nonlinear crystal.
Rüdiger VON ELM
Filed: 15 Apr 21
Utility
Optomechanical Assemblies for Temperature-robust Laser Beam Combination and Delivery
4 Aug 22
An optomechanical assembly for temperature-robust laser beam processing includes a baseplate and an optics plate.
Bradley CZOPEK, Cameron SIMMONS
Filed: 20 Jan 22
Utility
Spectrally Broadening Ultrashort-pulse Compressor
14 Jul 22
An ultrashort-pulse compressor includes (a) one or more bulk-optics intersecting a propagation path of an ultrashort-pulsed laser beam multiple times to spectrally broaden a pulse of the laser beam during each of multiple passes through the bulk-optic(s), (b) one or more dispersive optics for compressing a duration of the pulse after each of the multiple passes, and (c) a plurality of focusing elements for focusing the laser beam between the multiple passes.
Nick HARTMANN, Michael HERTWIG
Filed: 13 Jan 21
Utility
Laser Beam Wavefront Correction with Adaptive Optics and Mid-field Monitoring
26 May 22
A system for correcting the wavefront of a laser beam includes a beamsplitter for splitting off a fraction of the laser beam to be used as a diagnostic beam, a focusing element for bringing the diagnostic beam to a focus, a measurement subsystem for measuring sizes of the diagnostic beam at upstream and/or downstream locations with respect to a nominal location of the focus, and at least one adaptive optic, located upstream from the beamsplitter, for correcting the wavefront of the laser beam at least partly based on the measured sizes of the diagnostic beam at the upstream and/or downstream locations.
Rüdiger VON ELM
Filed: 23 Nov 20
Utility
Devices for Thermally Actuating Deformable Mirror, and Associated Manufacturing Methods
26 May 22
A device for thermally actuating a deformable mirror includes a monolithic block that includes a mirror plate having a front face forming or configured to support a mirror, a base, and a one-dimensional array of thermally expandable actuators.
Rüdiger Von Elm
Filed: 23 Nov 20
Utility
Multipass Laser Amplifier and No-optical-power Beam Steering Element
28 Apr 22
A multipass laser amplifier includes a mirror, a mirror device, a gain crystal, and refractive or diffractive beam-steering element.
Christoph O. SCHÄFER, Louis MCDONAGH, Ralf KNAPPE
Filed: 23 Oct 20
Utility
APPARATUS AND METHOD FOR GENERATING 780 nm ULTRASHORT-PULSED LASER RADIATION
17 Mar 22
An erbium fiber laser produces a beam of ultrashort laser pulses having a center wavelength greater than 780 nanometers, an average power greater than 0.5 watt, and a pulse duration less than 200 femtoseconds.
Lee CAIRNS
Filed: 13 Sep 21
Utility
780 nm ULTRASHORT-PULSED FIBER LASER
17 Mar 22
An erbium fiber laser produces a beam of ultrashort laser pulses having a center wavelength greater than 780 nanometers, an average power greater than 0.5 watt, and a spectral bandwidth compressible to a pulse duration of less than 200 femtoseconds.
Sean REILLY, Lee CAIRNS, Volker LEONHARDT
Filed: 13 Sep 21
Utility
Pulsed Laser with Intracavity Frequency Conversion Aided by Extra-cavity Frequency Conversion
17 Feb 22
A pulsed third-harmonic laser system includes a pulsed laser, an extra-cavity nonlinear crystal, and an intracavity nonlinear crystal.
Qize SHU
Filed: 14 Aug 20
Utility
High-radiance Wavelength-agile Incoherent Light-source
27 Jan 22
A source of high-radiance broad-band incoherent light includes an optical waveguide, having a core made of phosphor granules embedded in a matrix of glass and a cladding.
Sergei V. GOVORKOV, John H. JERMAN
Filed: 10 Dec 19
Utility
Laser Welding Method
25 Nov 21
A method for laser keyhole welding is disclosed to weld two pieces together made of a metal alloy.
Ryan BRESCOE
Filed: 22 May 20
Utility
Second-harmonic Generation Crystal
26 Aug 21
An optic produces a beam of ultraviolet laser radiation from a beam of visible laser radiation and spatially separates the ultraviolet laser beam from the visible laser beam.
Wolf SEELERT, Rüdiger VON ELM
Filed: 26 Feb 20
Utility
Radio-frequency Excited Gas Laser
5 Aug 21
A radio-frequency excited carbon dioxide (CO2) or carbon monoxide (CO) gas laser includes two electrodes, which have passivated surfaces, within a sealed housing.
Leon A. NEWMAN, Michael Leigh ERMOLD, James HYLAND, Thomas V. HENNESSEY, JR., Lanny LAUGHMAN
Filed: 28 Jan 21
Utility
Device for the Manufacture and Surface Processing of a Three-dimensional Object
17 Jun 21
This invention discloses a device 100 for the manufacture of three-dimensional objects by means of the sequential consolidation of layers of pulverized consolidatable build-up material at locations corresponding with the respective cross-section of the object, by means of radiation, in particular laser radiation.
Andreas LOHNER, Markus WOLF
Filed: 25 Oct 18