公开(公告)号：US10690928B2

公开(公告)日：2020-06-23

申请号：US15904861

申请日：2018-02-26

Applicant: nLIGHT, Inc.

Inventor： Scott Karlsen ,  Robert Martinsen ,  Dahv A. V. Kliner ,  Roger Farrow

IPC: G02B27/09 ,  B33Y30/00 ,  B23K26/06 ,  B23K26/073 ,  G02B6/26 ,  G02B6/42 ,  G02F1/01 ,  G02B6/028 ,  G02B6/036 ,  G02B6/14 ,  G02B6/255 ,  G02B6/12 ,  G02F1/015 ,  G02B6/02 ,  B22F3/105

Abstract: An apparatus for heat deposition in additive manufacturing may include: a first optical beam source configured to generate a first optical beam; a second optical beam source configured to generate a second optical beam; and/or an optical system. The optical system may be configured to move the generated first optical beam over a target area. The optical system may be further configured to move the generated second optical beam over the target area so that a path of the second optical beam moving over the target area is dithered about a path of the first optical beam moving over the target area.The optical system may be configured to focus the generated first optical beam at a plane of a target area. The optical system may be further configured to focus the generated second optical beam at the plane of the target area.

公开(公告)号：US10677984B2

公开(公告)日：2020-06-09

申请号：US15939148

申请日：2018-03-28

Applicant: nLIGHT, Inc.

Inventor： Aaron W. Brown ,  Dahv A. V. Kliner ,  Roger L. Farrow

IPC: G02B6/036 ,  G02F1/01 ,  B23K26/067 ,  B23K26/064 ,  G02B6/12 ,  G02B6/028

Abstract: Disclosed are an optical beam delivery device, systems, and methods for sequentially adjusting, with respect to members of a set of confinement regions, a propagation path for establishing a controllable, temporally apparent intensity distribution. The disclosed techniques entail applying to a variable beam characteristics (VBC) fiber different states perturbation to change the propagation path and the members of the set of confinement regions through which a confined portion of an adjusted optical beam propagates, thereby establishing at an output end of the VBC fiber the controllable, temporally apparent intensity distribution.

公开(公告)号：US10663767B2

公开(公告)日：2020-05-26

申请号：US15607410

申请日：2017-05-26

Applicant: nLIGHT, Inc.

Inventor： Dahv A. V. Kliner ,  Roger Farrow

IPC: G02F1/01 ,  B23K26/067 ,  B23K26/38 ,  G02B6/14 ,  B23K26/21 ,  B22F3/105 ,  B22F3/11 ,  B22F3/24 ,  B23K26/03 ,  G02B6/02 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B23K26/342 ,  B23K26/064 ,  B23K26/073 ,  G02B6/42 ,  G02B6/255 ,  G02B27/09 ,  G02B6/036 ,  G02B26/10 ,  G02B6/26 ,  G02B6/12 ,  G02F1/015 ,  G02B6/028

Abstract: Disclosed herein are methods, apparatus, and systems for providing an optical beam delivery device, comprising a first length of fiber comprising a first RIP formed to enable modification of one or more beam characteristics of an optical beam by a perturbation device and a second length of fiber having a second RIP coupled to the first length of fiber, the second RIP formed to confine at least a portion of the modified beam characteristics of the optical beam within one or more confinement regions.

公开(公告)号：US10661342B2

公开(公告)日：2020-05-26

申请号：US15939090

申请日：2018-03-28

Applicant: nLIGHT, Inc.

Inventor： Joona Koponen ,  Dahv A. V. Kliner ,  Roger Farrow

IPC: B22F3/10 ,  B22F3/105 ,  G02B27/09 ,  G02F1/01 ,  B33Y30/00 ,  B23K26/073 ,  B33Y10/00 ,  B23K26/08 ,  B23K26/342 ,  B23K26/144 ,  B23K26/14 ,  B23K26/082 ,  G02B6/14 ,  B29C64/153 ,  B29C64/268 ,  G02B6/028 ,  G02B6/42 ,  G02B6/12 ,  G02F1/015 ,  G02B6/26 ,  G02B6/036

Abstract: Additive manufacturing systems and methods for fabricating an article are provided. The additive manufacturing system may include a substrate and a layering device configured to fabricate a first layer of the article on the substrate. The layering device may include an optical beam source configured to generate an optical beam and a variable beam characteristics (VBC) fiber operably coupled with the optical beam source and configured to modify one or more beam characteristics, such as a wavelength, of the optical beam.

公开(公告)号：US10656440B2

公开(公告)日：2020-05-19

申请号：US15937652

申请日：2018-03-27

Applicant: nLIGHT, Inc.

Inventor： Dahv A. V. Kliner ,  Roger L. Farrow

IPC: G02F1/01 ,  B23K26/064 ,  B23K26/073 ,  G02B27/09 ,  G02B6/42 ,  G02B6/028 ,  G02B6/14 ,  G02B6/02 ,  G02B6/255 ,  G02B6/26

Abstract: An optical beam delivery device formed of optical fibers that are configured to produce an output exhibiting an intensity distribution profile having non-zero ellipticity includes a first length of fiber through which an incident optical beam having beam characteristics propagates and which has a first refractive index profile (RIP). The first RIP enables, in response to an applied perturbation, modification of the beam characteristics of the optical beam to form an adjusted beam having modified beam characteristics relative to the beam characteristics of the optical beam. A second length of fiber is coupled to the first length of fiber and formed with a set of one or more confinement regions that define a second RIP and confine at least a portion of the adjusted beam to generate, at an output of the second length of fiber, an intensity distribution profile having non-zero ellipticity.

公开(公告)号：US20200003980A1

公开(公告)日：2020-01-02

申请号：US16452403

申请日：2019-06-25

Applicant: NLIGHT, INC.

Inventor： Christopher Andrew Luetjen ,  Nicolas Trent Meacham ,  Shaun Cody Hampton ,  Rodney Mark Stephens

IPC: G02B6/44 ,  H01S3/067 ,  H01S3/094 ,  H01S5/024

Abstract: 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. Other embodiments may be disclosed and/or claimed.

公开(公告)号：US10374378B2

公开(公告)日：2019-08-06

申请号：US16158135

申请日：2018-10-11

Applicant: NLIGHT, Inc.

Inventor： Scott R. Karlsen ,  Walter R. Sanders

IPC: H01S3/067 ,  H01S3/06 ,  G02B6/24 ,  H01S3/0941 ,  H01S3/04

Abstract: A fiber laser system includes a fiber laser connector having a housing to terminate a fiber that generates a laser beam. A chamber extends internally along a length of the housing. A light trap includes a plurality of threads formed along a wall of the chamber to trap light reflected back to the fiber laser connector in response to an application of the laser beam to a workpiece.

公开(公告)号：US20190235160A1

公开(公告)日：2019-08-01

申请号：US16381836

申请日：2019-04-11

Applicant: nLIGHT, Inc.

Inventor： Joona Koponen ,  Changgeng Ye ,  Ossi Kimmelma

IPC: G02B6/028 ,  G02B6/02 ,  C03B37/028 ,  G02B6/14 ,  C03B37/012 ,  C03B37/025 ,  C03B37/027

CPC classification number: G02B6/0286 ,  C03B37/01222 ,  C03B37/0253 ,  C03B37/02745 ,  C03B37/02763 ,  C03B37/028 ,  C03B2203/12 ,  C03B2203/20 ,  C03B2203/32 ,  C03B2203/34 ,  C03B2205/07 ,  G02B6/02 ,  G02B6/02009 ,  G02B6/02338 ,  G02B6/028 ,  G02B6/14

Abstract: 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. In one representative embodiment, an optical waveguide comprises a core that extends along a propagation axis and has a refractive index profile that varies angularly about the propagation axis. The optical waveguide can also comprise a cladding disposed about the core and extending along the propagation axis. The refractive index profile of the core can vary angularly along a length of the propagation axis.

公开(公告)号：US10331431B2

公开(公告)日：2019-06-25

申请号：US15347569

申请日：2016-11-09

Applicant: nLIGHT, Inc.

Inventor： Nathaniel Black ,  Timothy N. Kutscha

IPC: G06F9/445 ,  G06F13/38 ,  G06F13/42 ,  G06F13/40 ,  G06F8/65

Abstract: An apparatus includes a plurality of laser system modules coupled to a communication bus that includes a module update bus, each laser system module including at least one module update port coupled to the module update bus and at least one micro controller unit (MCU) in communication with the module update port, wherein each laser system module is situated to receive a module update instruction over the module update bus based on a type identifier in a general purpose input/output (GPIO) register of the at least one MCU of the corresponding laser system module that indicates a laser system module type.

公开(公告)号：US10315274B2

公开(公告)日：2019-06-11

申请号：US15040357

申请日：2016-02-10

Applicant: nLIGHT Inc.

Inventor： Xiaojun Li ,  R. Kirk Price ,  Jason N. Farmer ,  Ethan A. McGrath

IPC: B23K26/18 ,  B41J2/44 ,  B41M5/26 ,  B23K26/356 ,  B23K26/359 ,  B23K26/0622 ,  B23K26/082 ,  B41J2/47

Abstract: A laser marking method and system, and laser marked object are disclosed. The method includes directing a pulsed laser beam towards an object such that an interface between an oxidized layer and non-oxidized substrate is in a mark zone of the pulsed laser beam, and scanning the pulsed laser beam across the object in a predetermined pattern to create a mark having an L value of less than 40 and a surface roughness that is substantially unchanged compared to adjacent unmarked areas. The system includes a fiber laser generating amplified pulses that are directed towards a galvo-scanner and focusing optic, while the object includes an oxidized surface layer, an underlying non-oxidized substrate, and a mark having an L value of less than 40 with substantially unchanged roughness features.