82 patents
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Utility
Adjustable Beam Characteristics
21 Oct 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: 5 Jul 20
Utility
CorrectedMethods of and Systems for Processing Using Adjustable Beam Characteristics
7 Oct 20
A method of processing by controlling one or more beam characteristics of an optical beam may include: 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 and one or more confinement regions; modifying the 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; confining the modified one or more beam characteristics of the optical beam within the one or more confinement regions of the second length 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.
Ken GROSS, Brian VICTOR, Robert MARTINSEN, Dahv A.V. KLINER, Roger FARROW
Filed: 29 Jan 18
Utility
Calibration Validation In Galvanometric Scanning Systems
16 Sep 20
Some embodiments may include a method of generating assessment data in a system including a galvanometric scanning system (GSS) having a laser device to generate a laser beam and an X-Y scan head module to position the laser beam on a work piece.
Jay Small, Ken Gross
Filed: 11 Mar 20
Utility
Focus Assessment In Dynamically Focused Laser System
16 Sep 20
Some embodiments may include a method assessing whether a dynamic focus module in a three axis galvanometric scanning system (three-axis GSS) is associated with a focus calibration error.
Jay Small, Ken Gross
Filed: 11 Mar 20
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
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
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
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
High-power Laser Diode Package Implemented with Meniscus Slow Axis Collimator for Reduced Diode Package Footprint or Improved Laser Output Brightness
20 May 20
A high-power laser diode assembly uses a greater number of emitters in a laser diode package or uses larger, wider laser diode emitters to produce higher-power laser output.
David Martin Hemenway
Filed: 14 Nov 18
Utility
Scanner Drift Compensation for Laser Material Processing
13 May 20
A scanned optical beam is divided so as to form a set of scanned subbeams.
Scott R. Karlsen, Robert J. Martinsen
Filed: 15 Jan 20
Utility
Heat Sink Formed from a High Pipe Density Silicon Carbide Substrate
22 Apr 20
Some embodiments may include a porous silicon carbide substrate plugged with dielectric material, the porous silicon carbide substrate including a first side to couple to a heat source and a second side to couple to an electrically conductive surface, wherein the second side is opposite the first side; wherein in the case that an opening on the area of the first side forms a channel with an opening on an area of the second side, a portion of the dielectric material located in the channel is arranged to prevent an electrical short from forming through the porous silicon carbide substrate to the electrically conductive surface.
Travis Arthur ABSHERE
Filed: 14 Oct 19
Utility
High-power, Single-mode Fiber Sources
15 Apr 20
An optical apparatus includes one or more pump sources situated to provide laser pump light, and a gain fiber optically coupled to the one or more pump sources, the gain fiber including an actively doped core situated to produce an output beam, an inner cladding and outer cladding surrounding the doped core and situated to propagate pump light, and a polymer cladding surrounding the outer cladding and situated to guide a selected portion of the pump light coupled into the inner and outer claddings of the gain fiber.
Dahv A.V. Kliner, Roger L. Farrow
Filed: 10 Dec 19
Utility
CorrectedUse of Variable Beam Parameters to Control Solidification of a Material
15 Apr 20
A method for forming an article includes providing a material having a first material property; forming a melt pool by exposing the material to an optical beam having at least one beam characteristic, wherein the melt pool has at least one melt pool property determinative of a second material property of the material; and modifying the at least one beam characteristic in response to a change in the melt pool property.
Brian Victor, Robert Martinsen, Lynn Sheehan, Dahv A.V. Kliner, Roger Farrow
Filed: 30 Jan 18
Utility
Optical Fiber Cladding Light Stripper
25 Mar 20
Multi-clad optical fiber cladding light stripper (CLS) comprising an inner cladding with one or more recessed surface regions to remove light propagating within the inner cladding.
Teemu Kokki, Christopher Luetjen, Ryan Hawke
Filed: 19 Sep 19
Utility
Optical Fiber Splice Encapsulated by a Cladding Light Stripper
11 Mar 20
Spliced multi-clad optical fibers with a cladding light stripper (CLS) encapsulating the splice.
Ryan Hawke, Teemu Kokki, Shaun Hampton, Chris Luetjen
Filed: 22 Aug 19
Utility
Back-reflection Protection and Monitoring In Fiber and Fiber-delivered Lasers
26 Feb 20
A system includes an optical fiber situated to propagate a laser beam received from a laser source to an output of the optical fiber, a first cladding light stripper optically coupled to the optical fiber and situated to extract at least a portion of forward-propagating cladding light in the optical fiber, and a second cladding light stripper optically coupled to the optical fiber between the first cladding light stripper and the optical fiber output and situated to extract at least a portion of backward-propagating cladding light in the optical fiber.
Dahv A. V. Kliner
Filed: 19 May 19
Utility
Short Pulse Fiber Laser for LTPS Crystallization
5 Feb 20
Laser pulses from pulsed fiber lasers are directed to an amorphous silicon layer to produce a polysilicon layer comprising a disordered arrangement of crystalline regions by repeated melting and recrystallization.
Robert J. Martinsen, Scott R. Karlsen, Ken Gross
Filed: 9 Oct 19
Utility
Calibration Test Piece for Galvanometric Laser Calibration
1 Jan 20
Some embodiments may include a galvanometric laser system, comprising: a laser device to generate a laser beam; an X-Y scan head module to position the laser beam on a work piece, the X-Y scan head module including a laser ingress to receive the laser beam and a laser egress to output the laser beam; a support platen located below the laser egress; an in-machine imaging system integrated with the galvanometric laser, wherein a camera of the in-machine imaging system is arranged to view a surface of an object located on the support platen using one or more optical components of the X-Y scan head module to generate assessment data associated with a calibration of the X-Y scan head module by imaging the surface of the object, wherein a calibration fiducial is located on the surface of the object.
Aaron Brown, Jay Small, Robert J. Martinsen
Filed: 29 Aug 19
Utility
Fine-scale Temporal Control for Laser Material Processing
1 Jan 20
Methods include directing a laser beam to a target along a scan path at a variable scan velocity and adjusting a digital modulation during movement of the laser beam along the scan path and in relation to the variable scan velocity so as to provide a fluence at the target within a predetermined fluence range along the scan path.
Robert J. Martinsen, Qi Wang
Filed: 11 Sep 19
Utility
Fiber Management Cartridge
1 Jan 20
Some embodiments may include a fiber management cartridge, comprising: a plurality of sheets of material arranged in a stack, each sheet including: a first section to fasten to a surface; and a second section to make movement relative to the surface when the first section is fastened to the surface, the second section to hold one or more loops of one or more optical fibers, respectively, of a fiber laser.
Christopher Andrew Luetjen, Nicolas Trent Meacham, Shaun Cody Hampton, Rodney Mark Stephens
Filed: 24 Jun 19