82 patents
Page 2 of 5
Utility
Continuous Wave Output In a Laser System Arranged for Pulsed Output
29 Dec 22
Some embodiments may include a fiber laser system comprising: a pump combiner; a plurality of fiber laser pump modules arranged for pumping a pulsed output from the fiber laser system; and a pump controller to operate in a first operation mode to pump a pulsed output from the fiber laser system and to operate in a second different operation mode to pump a continuous wave (CW) output from the fiber laser system; the pump controller to, in the first operation mode, simultaneously activate individual fiber laser pump modules of the plurality of fiber laser pump modules; and the pump controller to, in the second operation mode, sequentially activate the individual fiber laser pump modules of the plurality of fiber laser pump modules.
Kevin Michael CARBONE, C. Geoffrey FANNING, Dennis MCCAL, Richard FARMER
Filed: 16 Mar 22
Utility
Methods of and Systems for Processing Using Adjustable Beam Characteristics
22 Dec 22
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 J. MARTINSEN, Dahv A.V. KLINER, Roger FARROW
Filed: 30 Jun 22
Utility
High Brightness Fiber Coupled Diode Lasers with Circularized Beams
1 Dec 22
Apparatus include a plurality of laser diodes configured to emit respective laser diode beams having perpendicular fast and slow beam divergence axes mutually perpendicular to respective beam axes, and beam shaping optics configured to receive the laser diode beams and to circularize an ensemble image space and NA space of the laser diode beams at an ensemble coupling plane.
Zhigang Chen, Jay Small, Manoj Kanskar
Filed: 14 Aug 20
Utility
Variable Magnification Afocal Telescope Element
1 Dec 22
Apparatus include a transmissive optical substrate configured to receive a plurality of laser beams propagating along respective parallel beam axes at respective initial beam displacements with respect to an optical axis of the transmissive optical substrate, and configured to produce laser output beams having reduced displacements, wherein the transmissive optical substrate includes first and second surfaces with respective first and second curvatures defined to increase an output beam magnification and to nonlinearly increase an output beam displacement from the optical axis for a linearly increasing input beam displacement from the optical axis.
Jay Small, Zhigang Chen, Manoj Kanskar
Filed: 14 Aug 20
Utility
Strain-engineered Cladding Layer for Optimized Active Region Strain and Improved Laser Diode Performance
17 Nov 22
Some embodiments may include a laser diode having a strain-engineered cladding layer for optimized active region strain and improved laser diode performance.
Zhigang Chen, Manoj Kanskar
Filed: 15 Sep 20
Utility
Cladless Fiber for Fiber Laser Pump and Combiner
27 Oct 22
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, Nanoj Kanskar, Chendong Bai
Filed: 16 Sep 20
Utility
Fiber-based Optical Modulator
20 Oct 22
Systems and methods for temporal amplitude modulation of an optical beam.
Dahv A.V. Kliner
Filed: 5 Aug 20
Utility
Method and System for Reducing Returns from Retro-reflections In Active Illumination System
22 Sep 22
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
Fine-scale Temporal Control for Laser Material Processing
1 Sep 22
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
Methods, Systems and Apparatus for Reducing Waste Heat And/or Light In Fiber Lasers
11 Aug 22
In an example, the disclosed technology includes a laser source, comprising a plurality of pump elements configured to generate laser light, a controller coupled to the plurality of pump elements, configured to select individual drive current levels to be provided to respective ones of the plurality of pump elements responsive to a request for a laser power level and at least one power supply coupled to one or more of the plurality of pump elements for driving individual pump elements at selected drive currents.
Tyson L. LOWDER, Robert Joseph FOLEY, Michael C. NELSON
Filed: 15 Jun 20
Utility
Functionally Homogenized Intensity Distribution for Additive Manufacturing or Other Industrial Laser Processing Applications
4 Aug 22
Disclosed are techniques for generating a laser output beam having a functionally homogenized intensity distribution.
Juan Lugo, Aaron W. Brown, Jay Small, Robert J. Martinsen, Dahv A.V. Kliner
Filed: 24 Jun 20
Utility
Fiber Laser Insensitive Aiming Laser
14 Jul 22
A laser assembly comprising a multi-clad fiber optically coupled to a light source configured to emit optical radiation at a first wavelength and a protective element disposed between the light source and the multi-clad fiber so as to prevent a portion of backward-propagating optical radiation at a second wavelength from coupling into the light source.
Dahv A.V. KLINER, C. Geoffrey FANNING
Filed: 4 Jun 20
Utility
Tandem Pumped Fiber Amplifier
16 Jun 22
In an example, a tandem pumped fiber amplifier may include a seed laser, a first section coupled to an output of the seed laser, and a second section coupled to an output of the first section.
Manoj Kanskar, Jiamin Zhang
Filed: 4 Mar 22
Utility
Tandem Pumped Fiber Amplifier
9 Jun 22
In an example, a tandem pumped fiber amplifier may include a seed laser, one or more diode pumps, and a single or plural active core fiber.
Manoj Kanskar, Jiamin Zhang
Filed: 17 Dec 21
Utility
Optical Fiducial Generation for Galvanometric Scanner Calibration
12 May 22
An apparatus includes an optical source situated to produce a fiducial source beam, and an optical fiducial pattern generator situated to produce with the fiducial source beam at least one transient optical fiducial on a laser processing target that is in a field of view of a laser scanner situated to scan a laser processing beam across the laser processing target, so that a positioning of the laser processing beam on the laser processing target becomes adjustable relative to the at least one transient optical fiducial.
Jay Small, Robert J. Martinsen
Filed: 14 Oct 21
Utility
System and Method for Glint Reduction
5 May 22
Systems and methods for reducing the deleterious effects of specular reflections (e.g., glint) on active illumination systems are disclosed.
Bodo Schmidt, Paul S. Banks, Charles Stewart Tuvey
Filed: 13 Jan 22
Utility
Optical Fiber Devices and Methods for Reducing Stimulated Raman Scattering (SRS) Light Intensity In Signal Combined Systems
21 Apr 22
Signal combined optical fiber devices, systems, and methods for reducing signal spectrum pumping of Raman spectrum.
Tyson L. Lowder, Dahv A.V. Kliner, C. Geoffrey Fanning
Filed: 19 Dec 19
Utility
Integrated Thermal Management of Fiber Coupled Diode Laser Packaging
21 Apr 22
A laser diode package, comprising a housing having a metal base portion, an integrated heat spreader formed within the base, the integrated heat spreader comprising a first phase-change material (PCM) and configured to dissipate heat via phase-change cooling.
Manoj KANSKAR
Filed: 20 Dec 19
Utility
Optical Fiber Splice Encapsulated by a Cladding Light Stripper
14 Apr 22
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
Optical Fiber Devices and Methods for Directing Stimulated Raman Scattering (SRS) Light Out of a Fiber Core & into a Cladding
24 Mar 22
Optical fiber devices, systems, and methods for separating Raman spectrum from signal spectrum.
Tyson L. Lowder, Dahv A.V. Kliner, C. Geoffrey Fanning
Filed: 19 Dec 19