193 patents
Page 9 of 10
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
Use of variable beam parameters to control a melt pool
11 May 20
A method for forming an article includes: forming a melt pool; exposing the melt pool to an optical beam having at least one beam characteristic; forming a keyhole cavity in the melt pool, the keyhole cavity having at least one keyhole cavity property; and modifying the at least one beam characteristic in response to a change in the keyhole cavity property.
Brian Victor, Robert Martinsen, Lynn Sheehan, Roger Farrow, Dahv A. V. Kliner
Filed: 30 Jan 18
Utility
Multi-function semiconductor and electronics processing
11 May 20
A method of tailoring beam characteristics of a laser beam during fabrication of an electronic device.
David Martin Hemenway, Ken Gross, Dahv A. V. Kliner, Roger Farrow
Filed: 22 Mar 18
Utility
High-power laser diode package implemented with meniscus slow axis collimator for reduced diode package footprint or improved laser output brightness
11 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
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
Beam offset plate for optically offsetting one or more laser beams
20 Apr 20
A laser diode assembly, comprising a plurality of laser diodes each configured to emit respective ones of a plurality of laser beams along parallel and nonoverlapping optical axes and a first beam offset plate (BOP) configured to receive a first of the laser beams on a first input surface, the first laser beam having a first input optical axis, the first BOP configured to transmit a first output laser beam that has a first vertical offset from the first input optical axis.
David Martin Hemenway, David C. Dawson, Wolfram Urbanek
Filed: 26 Mar 18
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
Laser patterning skew correction
13 Apr 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: 4 Jun 14
Utility
Laser burst logging systems and methods
30 Mar 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: 4 Mar 19
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
Fiber laser packaging
24 Feb 20
A packaged fiber laser may include a wound fiber laser spiral including a metal ribbon having ends, surfaces, and edges; a fiber laser on a first one of the surfaces of the metal ribbon; and a metal sheet coupled to a first one of the edges of the metal ribbon or a second one of the surfaces of the metal ribbon.
Aaron Ludwig Hodges, Mitchell Ryan Reynolds
Filed: 13 Dec 17
Utility
Scanner drift compensation for laser material processing
24 Feb 20
A scanned optical beam is divided so as to form a set of scanned subbeams.
Scott R. Karlsen, Robert J. Martinsen
Filed: 31 Jul 14
Utility
Passively aligned single element telescope for improved package brightness
17 Feb 20
Beam compressors include separated surfaces having positive and negative optical powers.
David Martin Hemenway, David C. Dawson, Wolfram Urbanek
Filed: 13 Mar 19
Utility
Optimization of high resolution digitally encoded laser scanners for fine feature marking
10 Feb 20
Disclosed herein are laser scanning systems and methods of their use.
Ken Gross
Filed: 5 Nov 17
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
High-power, single-mode fiber sources
13 Jan 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: 12 Nov 17
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