110 patents
Utility
Optical fiber bending mechanisms
2 Jan 24
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: 20 May 20
Utility
Capillary tube to strip back-reflected light
28 Nov 23
Some embodiments may include a fiber laser including two or more input fibers and an output fiber to deliver a beam to a workpiece, the fiber laser comprising.
Juan Carlos Lugo, Teemu Kokki, Roger Farrow, Dahv A. V. Kliner
Filed: 28 Jan 21
Utility
Diode laser package for bidirectionally emitting semiconductor laser devices
21 Nov 23
The disclosed diode laser packages include a carrier having an optics-mounting surface to which first and second sets of collimating and turning optics are mounted.
Manoj Kanskar
Filed: 25 Nov 19
Utility
Fiber source with cascaded gain stages and/or multimode delivery fiber with low splice loss
7 Nov 23
An apparatus includes an optical gain fiber having a core, a cladding surrounding the core, the core and cladding defining an optical gain fiber numerical aperture, and a multimode fiber having a core with a larger radius than a radius of the optical gain fiber core, a cladding surrounding the core, the core and cladding of the multimode fiber defining a multimode fiber stable numerical aperture that is larger than the optical gain fiber numerical aperture, the multimode fiber being optically coupled to the optical gain fiber so as to receive an optical beam propagating in the optical gain fiber and to stably propagate the received optical beam in the multimode fiber core with low optical loss associated with the optical coupling.
Roger L. Farrow, Dahv A. V. Kliner
Filed: 5 Apr 21
Utility
Optical fiber splice encapsulated by a cladding light stripper
7 Nov 23
Spliced multi-clad optical fibers with a cladding light stripper (CLS) encapsulating the splice.
Ryan Hawke, Teemu Kokki, Shaun Hampton, Chris Luetjen
Filed: 17 May 21
Utility
Fine-scale temporal control for laser material processing
24 Oct 23
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: 16 May 22
Utility
Method and system for reducing returns from retro-reflections in active illumination system
17 Oct 23
Systems and methods for reducing or eliminating undesired effects of retro-reflections in imaging are disclosed.
Bodo Schmidt, Steve Herman
Filed: 7 Mar 22
Utility
Beam parameter product (BPP) control by varying fiber-to-fiber angle
8 Aug 23
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: 6 Aug 20
Utility
Cladless fiber for fiber laser pump and combiner
2 May 23
Some embodiments may include a packaged laser diode assembly, comprising: a length of optical fiber having a core and a polymer buffer in direct contact with the core, the length of optical fiber having a first section and a second section, the first section of the length of optical fiber including a tip of an input end of the optical fiber, wherein the polymer buffer covers only the second section of the first and second sections; one or more laser diodes to generate laser light; means for directing a beam derived from the laser light into the input end of the length of optical fiber; a light stripper attached to the core in the first section of the length of optical fiber.
Shuang Li, Jiamin Zhang, Manoj Kanskar, Chendong Bai
Filed: 16 Sep 20
Utility
System and method of three-dimensional imaging
11 Apr 23
Systems and methods for three-dimensional imaging are disclosed.
Paul S. Banks
Filed: 22 Dec 20
Utility
Reducing interference in an active illumination environment
28 Mar 23
Apparatuses, systems and methods are disclosed for reducing interference between an active illumination device and external radiation sources, for example, other active illumination devices operating within the vicinity.
Bodo Schmidt
Filed: 20 Dec 18
Utility
Focus assessment in dynamically focused laser system
14 Feb 23
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: 12 Mar 20
Utility
Optical fiber cladding light stripper
7 Feb 23
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: 20 Sep 19
Utility
High-numerical aperture light stripper
20 Dec 22
A fiber connector, comprising a housing comprising a region extending in a lengthwise direction an optical fiber disposed in the region, a first portion of the optical fiber comprising an inner core, a cladding layer surrounding the core, and a first outer polymer layer surrounding the cladding layer and a second portion of the optical fiber comprising the inner core, the cladding layer surrounding the core and a second outer polymer layer that is different from the first polymer layer.
Dahv A. V. Kliner
Filed: 6 Mar 19
Utility
Calibration validation using geometric features in galvanometric scanning systems
13 Dec 22
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: 12 Mar 20
Utility
Method and system for robust and extended illumination waveforms for depth sensing in 3D imaging
29 Nov 22
The methods and systems disclosed herein improve upon previous 3D imaging techniques by making use of a longer illumination pulse to obtain the same or nearly the same range resolution as can be achieved by using a much shorter, conventional laser pulse.
Paul S. Banks, Bodo Schmidt, C. Stewart Tuvey
Filed: 24 Mar 18
Utility
Scanner drift compensation for laser material processing
15 Nov 22
A scanned optical beam is divided so as to form a set of scanned subbeams.
Scott R. Karlsen, Robert J. Martinsen
Filed: 16 Jan 20
Utility
Method, system and apparatus for higher order mode suppression
8 Nov 22
A laser diode, comprising a transverse waveguide that is orthogonal to the lateral waveguide comprising an active layer between an n-type waveguide layer and a p-type waveguide layer, wherein the transverse waveguide is bounded by an n-type cladding layer on an n-side and p-type cladding layer on a p-side and a lateral waveguide bounded in a longitudinal direction at a first end by a high reflector (HR) coated facet and at a second end by a partial reflector (PR) coated facet, the lateral waveguide further comprising a buried higher order mode suppression layer (HOMSL) disposed beneath the p-cladding within the lateral waveguide or on one or both sides of the lateral waveguide or a combination thereof, wherein the HOMSL extends in a longitudinal direction from the HR facet a length less than the distance between the HR facet and the PR facet.
Manoj Kanskar, Zhigang Chen, Nicolas Biekert
Filed: 13 Aug 20
Utility
Laser patterning skew correction
11 Oct 22
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: 13 Apr 20
Utility
Low cost optical pump laser package
23 Aug 22
Laser diode packages include a rigid thermally conductive base member that includes a base member surface situated to support at least one laser diode assembly, at least one electrode standoff secured to the base member surface that has at least one electrical lead having a first end and a second end with the first end secured to a lead surface of the electrode standoff, and a lid member that includes a lid portion and a plurality of side portions extending from the lid portion and situated to be secured to the base member so as to define sides of the laser diode package, wherein at least one of the side portions includes a lead aperture situated to receive the second end of the secured electrical lead that is insertable through the lead aperture so that the lid member extends over the base member to enclose the laser diode package.
David C. Dawson, Wolfram Urbanek, David Martin Hemenway
Filed: 17 Sep 20