193 patents
Page 7 of 10
Utility
Method, system and apparatus for higher order mode suppression
14 Sep 20
A laser diode vertical epitaxial structure, comprising a transverse waveguide comprising an active layer between an n-type semiconductor layer and a p-type semiconductor layer wherein the transverse waveguide is bounded by a lower index n-cladding layer on an n-side of the transverse waveguide and a lower index p-cladding layer on a p-side of the transverse waveguide, a lateral waveguide that is orthogonal to the transverse waveguide, wherein the lateral waveguide is bounded in a longitudinal direction at a first end by a facet coated with a high reflector (HR) coating and at a second end by a facet coated with a partial reflector (PR) coating and a higher order mode suppression layer (HOMSL) disposed adjacent to at least one lateral side of the lateral waveguide and that extends in a longitudinal direction.
Manoj Kanskar, Zhigang Chen
Filed: 26 Oct 17
Utility
Methods to Maintain and Control the Polarization State from 3C Optical Fiber
9 Sep 20
Fiber laser amplification systems and methods are disclosed for use with a chirally coupled core (3C) optical fiber enabling the generation of a high-power output beam having a controlled stable polarization state.
Tyson Lowder
Filed: 3 Mar 20
Utility
Beam parameter product (bpp) control by varying fiber-to-fiber angle
7 Sep 20
An apparatus includes a laser system that includes a first fiber having an output end and situated to propagate a first laser beam with a first beam parameter product (bpp) and a second fiber having an input end spliced to the output end of the first fiber at a fiber splice so as to receive the first laser beam and to form a second laser beam having a second bpp that is greater than the first bpp, wherein the output end of the first fiber and the input end of the second fiber are spliced at a tilt angle so as to increase the first bpp to the second bpp.
David Logan, Ryan Hawke, David R. Balsley, Ron Stevens
Filed: 25 Sep 16
Utility
Passively aligned crossed-cylinder objective assembly
31 Aug 20
A cross-cylinder objective assembly includes a fast axis objective (FAO) situated along an optical axis for focusing an incident laser beam along a fast axis, a slow axis objective (SAO) situated along the optical axis for focusing the incident laser beam along a slow axis, and a lens cell having fast and slow axis objective receiving portions for registering the FAO and SAO at a predetermined spacing along the optical axis.
David Martin Hemenway, Aaron Brown, David C. Dawson, Kylan Hoener, Shelly Lin, Wolfram Urbanek
Filed: 12 May 16
Utility
Low swap two-phase cooled diode laser package
31 Aug 20
Apparatus include a conductive block including a base surface and a plurality of parallel stepped surfaces opposite the base surface and defining respective mounting surfaces situated to receive respective laser diodes having respective thermal paths defining a common thermal path distance from the mounting surfaces to the base surface, and a two-phase cooling unit including a coupling surface attached to the base surface of the conductive block and wherein the two-phase cooling unit is situated to conduct heat generated through the emission of laser beams from the laser diodes along the thermal paths.
Manoj Kanskar, Mark DeFranza
Filed: 23 Apr 18
Utility
Optical beam delivery device formed of optical fibers configured for beam divergence or mode coupling control
24 Aug 20
An optical beam delivery device is formed of optical fibers configured for beam divergence or mode coupling control.
Joona Koponen, Roger L. Farrow, Dahv A. V. Kliner
Filed: 27 Mar 18
Utility
Methods of and systems for materials processing using optical beams
10 Aug 20
A method of materials processing using an optical beam includes: launching the optical beam into a first length of fiber having a first refractive-index profile (RIP); coupling the optical beam from the first length of fiber into a second length of fiber having a second RIP; modifying one or more beam characteristics of the optical beam in the first length of fiber, in the second length of fiber, or in the first and second lengths of fiber; and/or generating an output beam, having the modified one or more beam characteristics of the optical beam, from the second length of fiber.
Brian Victor, Christopher A. Rivera, Dahv A.V. Kliner, Roger Farrow
Filed: 27 Mar 18
Utility
Method of processing calibration data in 3D laser scanner systems
10 Aug 20
A method includes determining a set of pattern position errors between (i) a set of expected pattern positions of a calibration pattern on a laser target situated in a laser processing field of a laser system and produced based on a set of initial scan optic actuation corrections associated with a scan optic of the laser system and (ii) a set of measured pattern positions of the calibration pattern, determining a set of scan optic actuation rates based on the set of initial scan optic actuation corrections, and updating the set of initial scan optic actuation corrections based on the set of scan optic actuation rates and the set of pattern position errors so as to form a set of updated scan optic actuation corrections that is associated with a reduction of at least a portion of the set of pattern position errors.
Jay Small, Ken Gross, Vito P. Errico
Filed: 17 Apr 19
Utility
Optimization of High Resolution Digitally Encoded Laser Scanners for Fine Feature Marking
5 Aug 20
Disclosed herein are laser scanning systems and methods of their use.
Ken Gross
Filed: 9 Feb 20
Utility
Fiber termination assembly
3 Aug 20
A fiber termination assembly includes an optical fiber inserted into an optical ferrule disposed in an optical passageway of a heat conductive housing, the optical passageway providing an optical path aligned with the openings of the housing, the optical ferrule including a central bore concentrically disposed about the optical path and configured to receive a portion of a proximal end of the optical fiber therein, the optical ferrule and optical fiber secured in relation to the heat conductive housing with epoxy at a distal end of the optical ferrule, wherein the optical ferrule is transparent at a predetermined wavelength of light such that for light coupled into an input surface of the proximal end of the optical fiber at least a portion of the light propagating as cladding modes is stripped out of the optical fiber and transported to and dissipated in the heat conductive housing.
Kylan Hoener, David C. Dawson, Kevin A. Shea, R. Kirk Price
Filed: 22 Oct 15
Utility
Fiber-coupled device for varying beam characteristics
3 Aug 20
Disclosed herein are methods, apparatus, and systems for providing an optical beam delivery system, comprising an optical fiber including a first length of fiber comprising a first RIP formed to enable, at least in part, modification of one or more beam characteristics of an optical beam by a perturbation assembly arranged to modify the one or more beam characteristics, the perturbation assembly coupled to the first length of fiber or integral with the first length of fiber, or a combination thereof and a second length of fiber coupled to the first length of fiber and having a second RIP formed to preserve at least a portion of the one or more beam characteristics of the optical beam modified by the perturbation assembly within one or more first confinement regions.
Dahv A. V. Kliner, Roger L. Farrow
Filed: 27 Mar 18
Utility
Adjustable beam characteristics
3 Aug 20
Disclosed herein are methods, apparatus, and systems for providing an optical beam delivery system, comprising an optical fiber including a first length of fiber comprising a first RIP formed to enable, at least in part, modification of one or more beam characteristics of an optical beam by a perturbation assembly arranged to modify the one or more beam characteristics, the perturbation assembly coupled to the first length of fiber or integral with the first length of fiber, or a combination thereof and a second length of fiber coupled to the first length of fiber and having a second RIP formed to preserve at least a portion of the one or more beam characteristics of the optical beam modified by the perturbation assembly within one or more first confinement regions.
Dahv A. V. Kliner, Roger Farrow
Filed: 1 May 19
Utility
Optical fiber bending mechanisms
3 Aug 20
Fiber bending mechanisms vary beam characteristics by deflecting or bending one or more fibers, by urging portions of one or more fibers toward a fiber shaping surface having a selectable curvature, or by selecting a fiber length that is to be urged toward the fiber shaping surface.
Aaron Brown, Aaron Ludwig Hodges, Dahv A. V. Kliner
Filed: 27 Mar 18
Utility
Laser Patterning Skew Correction
29 Jul 20
A laser patterning alignment method provides a way to position a target at a working distance in a laser patterning system such that fiducial marks on the target are positioned in view of at least three laser patterning system cameras, and with each laser patterning system camera, to locate a fiducial mark on the target and sending location data of the located fiducial mark to a controller, to determine corrections required to align expected fiducial mark locations with the sent fiducial mark location data, and to adjust the laser patterning system with the determined corrections.
Vito P. Errico, Roger C. Shipman
Filed: 12 Apr 20
Utility
Image rotation compensation for multiple beam material processing
27 Jul 20
An image compensated multi-beam system includes a beam splitter configured to receive an input light beam and split the input light beam into a plurality of processing light beams, beam scanning optics configured to receive the plurality of processing light beams and to scan the beams at a target, and an image compensation subsystem configured to selectively adjust the rotation of an image of the plurality of processing light beams at the target.
Scott R. Karlsen
Filed: 10 Jun 13
Utility
Laser Burst Logging Systems and Methods
8 Jul 20
A burst logging system logs and transmits to a local or remote computing system event data related to errors in and or potential failures of laser system components.
Michael C. Nelson
Filed: 15 Mar 20
Utility
Optical power density control in fiber-coupled laser
6 Jul 20
An optical power control system includes a laser source to provide an optical beam, a variable beam characteristics (VBC) fiber, and a controller operatively coupled to the VBC fiber and configured to control, in response to information indicating change in optical power of the optical beam, different states of perturbation so as to control optical power density.
Robert J. Martinsen, Jacob L. Bell, Dahv A.V. Kliner, Roger L. Farrow
Filed: 27 Mar 18
Utility
Methods of and systems for heat deposition in additive manufacturing
22 Jun 20
Scott Karlsen, Robert Martinsen, Dahv A. V. Kliner, Roger Farrow
Filed: 25 Feb 18
Utility
Optimization of high resolution digitally encoded laser scanners for fine feature marking
22 Jun 20
Disclosed herein are laser scanning systems and methods of their use.
Ken Gross
Filed: 5 Nov 17
Utility
Frequency-converted optical beams having adjustable beam characteristics
15 Jun 20
An optical beam delivery system, includes: an optical beam source; a fiber assembly situated to receive and modify one or more beam characteristics of an optical beam; and a nonlinear frequency-conversion stage in optical communication with the fiber assembly and situated to receive and frequency-convert an optical beam from a first wavelength to one or more second wavelengths.
Brian Victor, Jacob L. Bell, Dahv A. V. Kliner, Roger Farrow
Filed: 27 Mar 18