34 patents
Utility
Radio-frequency excited gas laser
19 Dec 23
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
Single and multi-stage high power optical isolators using a single polarizing element
4 Jul 23
An optical isolator for generally collimated laser radiation includes a single polarizing element, at least one Faraday optical element, at least one reciprocal polarization altering optical element disposed at the single polarizing element, at least one reflective optical element for reflecting radiation to provide an even number of passes through the at least one Faraday optical element, and a magnetic structure.
David G. Scerbak, Evan Rogers, Amir Jalali Roudsar, Joseph R. Mambourg
Filed: 25 Jul 19
Utility
Cantilever device for shifting optically nonlinear crystal
4 Apr 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
Devices for thermally actuating deformable mirror, and associated manufacturing methods
7 Mar 23
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
Resonantly enhanced frequency conversion with adaptive thermal-lensing compensation
24 Jan 23
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
Laser apparatus for cutting brittle material
10 Jan 23
An apparatus for cutting brittle material comprises an aspheric focusing lens, an aperture, and a laser-source generating a beam of pulsed laser-radiation.
Michael R. Greenberg, David M. Gaudiosi, Jochen Deile
Filed: 28 Apr 20
Utility
Laser welding method
13 Dec 22
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
Separation and release of laser-processed brittle material
13 Dec 22
A method for separating and releasing a closed-form piece from a workpiece made of a brittle material is disclosed.
Stefan Groninger, Manfred Schadi, Ludger Müllers, Jürgen Serbin
Filed: 11 Jul 19
Utility
Small, high power optical isolator
30 Aug 22
An optical isolator for use with high power, collimated laser radiation includes an input polarizing optical element, at least one Faraday optical element, at least two reflective optical elements for reflecting laser radiation to provide an even number of passes through said at least one Faraday optical element, at least one reciprocal polarization altering optical element, an output polarizing optical element, at least one light redirecting element for remotely dissipating isolated or lost laser radiation.
David G. Scerbak, Joseph R. Mambourg
Filed: 20 Dec 19
Utility
Optical parametric chirped-pulse amplifier
2 Aug 22
An optical parametric chirped-pulse amplifier includes first and second optical parametric amplifier stages that successively amplify a stretched signal beam.
Dmitri Simanovski, Norman Hodgson
Filed: 20 Aug 19
Utility
Laser welding method
19 Jul 22
A method for laser keyhole welding of metal alloys is disclosed.
Ryan Brescoe, Jean-Philippe Lavoie
Filed: 10 Feb 20
Utility
Pulsed laser with intracavity frequency conversion aided by extra-cavity frequency conversion
19 Jul 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
Nonlinear frequency conversion with variable average power and stable heat load
5 Jul 22
A system for nonlinear frequency conversion includes an acousto-optic modulator for diffracting a portion of an input laser beam as a first-order beam and transmitting a non-diffracted portion of the input laser beam as a zeroth-order beam.
Markus Lührmann, Christoph O. Schäfer, Stefan Niedlich, Ralf Knappe
Filed: 15 Apr 21
Utility
Apparatus for forming a homogeneous intensity distribution with bright or dark edges
17 May 22
A beam homogenizer for transforming a beam of laser-radiation into a flat-top intensity distribution having brighter or darker edges comprises a first lens array, a second lens array, and a positive lens.
Frank Simon, Ludwig Schwenger, Andrea Caprara
Filed: 24 Feb 20
Utility
Conductively-cooled slab laser
17 May 22
A carbon dioxide gas-discharge slab-laser is assembled in a laser-housing.
Eric R. Mueller, Vernon A. Seguin, Christian Shackleton
Filed: 2 Apr 20
Utility
Laser wavelength stabilization apparatus
22 Mar 22
A wavelength sensor for wavelength stabilization of a laser beam includes an etalon placed in the laser beam and tilted with respect to the laser beam.
Qize Shu
Filed: 22 Jul 19
Utility
Excimer laser with uniform beam
23 Nov 21
Fine-structure in the transverse mode of an excimer laser beam is minimized by having a plurality of resonator mirrors located at each end of a linear excimer laser.
Igor Bragin, Timur Misyuryaev, Paul Van Der Wilt
Filed: 20 Feb 20
Utility
Wavelength discriminating slab laser
9 Nov 21
A CO2 laser that generates laser-radiation in just one emission band of a CO2 gas-mixture has resonator mirrors that form an unstable resonator and at least one spectrally-selective element located on the optical axis of the resonator.
Peter Rosenthal, Jens Schüttler, Florian Engel, Gongxue Hua
Filed: 5 Nov 19
Utility
Beam forming with focus location adjustment
9 Nov 21
An apparatus includes a beam source, beam forming optics, a first focusing lens having a focal length, a second focusing lens having a focal length similar to the focal length of the first lens, and a lens translator configured to move the second lens transversely relative to the beam forming optics and to the first lens, and thereby move the elongated focus transversely.
Lei Meng, Michele Wayne Winz
Filed: 24 Apr 19
Utility
High repetition rate seed laser
19 Oct 21
A fiber laser producing a beam of ultrashort laser pulses at a repetition rate greater than 200 MHz includes a linear fiber resonator and a fiber branch.
Norman Hodgson, Dmitri Simanovski
Filed: 6 Jun 19