193 patents
Page 6 of 10
Utility
High-power, single-mode fiber sources
9 Feb 21
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: 11 Dec 19
Utility
Back-reflection protection and monitoring in fiber and fiber-delivered lasers
26 Jan 21
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: 20 May 19
Utility
Low Cost Optical Pump Laser Package
6 Jan 21
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: 16 Sep 20
Utility
Methods of and systems for processing using adjustable beam characteristics
28 Dec 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
Low size and weight, high power fiber laser pump
7 Dec 20
A device for cooling a laser diode pump comprising a Low Size Weight Power Efficient (SWAP) Laser Diode (LSLD) assembly, including a laser diode coupled to a submount on a first surface, the submount comprising a first thermally conductive material and a heatsink coupled to a second surface of the submount, wherein the heatsink comprises a second thermally conductive material, the heatsink comprising one or more members formed on a side opposite the coupled submount.
Manoj Kanskar, Johannes Boelen
Filed: 7 Oct 18
Utility
Power and brightness scaling in fiber coupled diode lasers using diodes with optimized beam dimensions
30 Nov 20
A number of beams that can be coupled into an optical fiber can be increased using emitted beams having greater divergence, thus providing increased beam power.
Zhigang Chen, David Martin Hemenway, Manoj Kanskar
Filed: 9 Jan 18
Utility
Apparatuses for Scattering Light and Methods of Forming Apparatuses for Scattering Light
25 Nov 20
An apparatus for scattering light may include: an optical fiber having a first length; and a sleeve, having a second length shorter than the first length, around the optical fiber.
Manoj KANSKAR, Shuang LI, Eric MARTIN, Jay SMALL, Jiamin ZHANG
Filed: 21 May 20
Utility
Method, System and Apparatus for Higher Order Mode Suppression
25 Nov 20
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: 12 Aug 20
Utility
Beam Parameter Product (BPP) Control by Varying Fiber-to-fiber Angle
18 Nov 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: 5 Aug 20
Utility
Spun round core fiber
16 Nov 20
Optical waveguide cores having refractive index profiles that vary angularly about a propagation axis of the core can provide single-mode operation with larger core diameters than conventional waveguides.
Joona Koponen, Changgeng Ye, Ossi Kimmelma
Filed: 10 Apr 19
Utility
Programmable waveform simulator
16 Nov 20
A system includes a laser system situated to generate a laser beam, a controller situated to control a path of the laser beam on a target and to control a variation of one or more waveforms associated with the laser beam, and a display coupled to the controller and situated to display a plurality of list data portions that include waveform parameters and a simulated waveform based on the plurality of list data portions, wherein the simulated waveform includes a plurality of simulated waveform portions that are predictive of the one or more waveforms.
Robert Joseph Foley
Filed: 31 Oct 16
Utility
Optical Fiber Bending Mechanisms
11 Nov 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: 19 May 20
Utility
CTE-matched silicon-carbide submount with high thermal conductivity contacts
9 Nov 20
Laser diode submounts include a SiC substrate on which a thick conductive layer is supplied to use in mounting a laser diode.
Manoj Kanskar, Zhigang Chen
Filed: 31 Jul 18
Utility
Diode laser apparatus with FAC lens out-of-plane beam steering
9 Nov 20
Apparatus include a first laser diode situated to emit a beam from an exit facet along an optical axis, the beam as emitted having perpendicular fast and slow axes perpendicular to the optical axis, a first fast axis collimator (FAC) optically coupled to the beam as emitted from the exit facet and configured to direct the beam along a redirected beam axis having a non-zero angle with respect to the optical axis of the first laser diode, a second laser diode situated to emit a beam from an exit facet of the second laser diode along an optical axis parallel to the optical axis of the first laser diode and with a slow axis in a common plane with the slow axis of the first laser diode, and a second fast axis collimator (FAC) optically coupled to the beam as emitted from the exit facet of the second laser diode and configured to direct the beam along a redirected beam axis having a non-zero angle with respect to the optical axis of the second laser diode.
Zhigang Chen, Manoj Kanskar, Shuang Li, Jim Zhang, Mark DeFranza, David Martin Hemenway, Eric Martin, Jay Small
Filed: 5 Feb 19
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
Low cost optical pump laser package
5 Oct 20
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: 1 Apr 19
Utility
Fiber laser having variably wound optical fiber
21 Sep 20
Some embodiments may include a fiber laser, comprising: a variably wound optical fiber, wherein the variably wound optical fiber includes: a first length arranged in a plurality of first loops with a first separation distance between successive ones of the first loops; and a second length arranged in a plurality of second loops with a second separation distance between successive ones of the second loops; wherein the first separation distance between successive ones of the first loops is greater than the second separation distance between successive ones of the second loops; and packaging to remove heat generated by the optical fiber of the fiber laser during operation of the fiber laser, wherein the variably wound optical fiber is fixably mounted to a surface of a heat conductor of the packaging.
Aaron Ludwig Hodges, Nicolas Meacham, Dahv Kliner, Mitchell Ryan Reynolds
Filed: 10 Mar 19
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