公开(公告)号：US20190258091A1

公开(公告)日：2019-08-22

申请号：US16402147

申请日：2019-05-02

Applicant: nLIGHT, Inc.

Inventor： Dahv A.V. Kliner ,  Roger Farrow

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

Abstract: 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. The optical beam delivery system may include an optical system coupled to the second length of fiber including one or more free-space optics configured to receive and transmit an optical beam comprising the modified one or more beam characteristics.

公开(公告)号：US20180088357A1

公开(公告)日：2018-03-29

申请号：US15607399

申请日：2017-05-26

Applicant: nLIGHT, Inc.

Inventor： Dahv A.V. Kliner ,  Roger Farrow

IPC: G02F1/01 ,  G02B6/26 ,  G02B6/42 ,  B23K26/064 ,  B23K26/073

Abstract: Disclosed herein are methods, apparatus, and systems for perturbing an optical beam propagating within a first length of fiber to adjust one or more beam characteristics of the optical beam in the first length of fiber or a second length of fiber or a combination thereof, coupling the perturbed optical beam into a second length of fiber and maintaining at least a portion of one or more adjusted beam characteristics within a second length of fiber having.

公开(公告)号：US20180088343A1

公开(公告)日：2018-03-29

申请号：US15607410

申请日：2017-05-26

Applicant: nLIGHT, Inc.

Inventor： Dahv A.V. Kliner ,  Roger Farrow

IPC: G02B27/09 ,  G02B6/255 ,  G02B6/028 ,  G02B6/036

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：US11886053B2

公开(公告)日：2024-01-30

申请号：US17854933

申请日：2022-06-30

Applicant: NLIGHT, INC.

Inventor： Ken Gross ,  Brian Victor ,  Robert J. Martinsen ,  Dahv A. V. Kliner ,  Roger Farrow

IPC: G02F1/01 ,  B23K26/067 ,  B23K26/38 ,  G02B6/14 ,  B23K26/21 ,  B22F3/11 ,  B22F3/24 ,  B23K26/03 ,  G02B6/02 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B23K26/342 ,  B29C48/08 ,  G02B6/036 ,  G02B6/42 ,  B23K26/062 ,  B23K26/70 ,  B29C64/264 ,  B29C64/153 ,  H01S5/00 ,  B22F10/20 ,  B22F10/31 ,  B22F10/36 ,  B23K26/064 ,  B23K26/073 ,  G02B6/255 ,  G02B27/09 ,  G02B26/10 ,  G02B6/028 ,  G02F1/015 ,  B22F12/44 ,  B22F12/49 ,  G02B6/26 ,  G02B6/12

CPC classification number: G02F1/0115 ,  B22F3/1109 ,  B22F3/24 ,  B22F10/20 ,  B22F10/31 ,  B22F10/36 ,  B23K26/032 ,  B23K26/034 ,  B23K26/0342 ,  B23K26/062 ,  B23K26/064 ,  B23K26/067 ,  B23K26/073 ,  B23K26/21 ,  B23K26/342 ,  B23K26/38 ,  B23K26/704 ,  B29C48/08 ,  B29C64/153 ,  B29C64/264 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  G02B6/02 ,  G02B6/021 ,  G02B6/023 ,  G02B6/02042 ,  G02B6/02347 ,  G02B6/02371 ,  G02B6/02395 ,  G02B6/036 ,  G02B6/03611 ,  G02B6/03694 ,  G02B6/14 ,  G02B6/255 ,  G02B6/4203 ,  G02B6/4206 ,  G02B27/0927 ,  G02B27/0933 ,  G02B27/0994 ,  H01S5/0085 ,  B22F12/44 ,  B22F12/49 ,  G02B6/02004 ,  G02B6/0281 ,  G02B6/0288 ,  G02B6/0365 ,  G02B6/03616 ,  G02B6/03627 ,  G02B6/03633 ,  G02B6/03638 ,  G02B6/03688 ,  G02B6/262 ,  G02B6/4296 ,  G02B26/101 ,  G02B2006/12121 ,  G02F1/0151

Abstract: 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. The first RIP may differ from the second RIP.

公开(公告)号：US10732440B2

公开(公告)日：2020-08-04

申请号：US16402147

申请日：2019-05-02

Applicant: nLIGHT, Inc.

Inventor： Dahv A. V. Kliner ,  Roger Farrow

IPC: G02B6/02 ,  G02B6/24 ,  G02F1/01 ,  B23K26/067 ,  B23K26/38 ,  G02B6/14 ,  B23K26/21 ,  B22F3/105 ,  B22F3/11 ,  B22F3/24 ,  B23K26/03 ,  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 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. The optical beam delivery system may include an optical system coupled to the second length of fiber including one or more free-space optics configured to receive and transmit an optical beam comprising the modified one or more beam characteristics.

公开(公告)号：US10684487B2

公开(公告)日：2020-06-16

申请号：US15939223

申请日：2018-03-28

Applicant: nLIGHT, Inc.

Inventor： Brian Victor ,  Jacob L. Bell ,  Dahv A. V. Kliner ,  Roger Farrow

IPC: G02B27/09 ,  B23K26/064 ,  B23K26/067 ,  B23K26/073 ,  G02B6/036 ,  G02B6/42 ,  G02B6/14 ,  G02B6/02 ,  G02B6/028 ,  G02B6/12 ,  G02B6/255 ,  G02B6/26

Abstract: An optical beam delivery system, includes: an optical beam source; a fiber assembly situated to receive and modify one or more beam characteristics of an optical beam; and a nonlinear frequency-conversion stage in optical communication with the fiber assembly and situated to receive and frequency-convert an optical beam from a first wavelength to one or more second wavelengths. The fiber assembly includes: a first length of fiber comprising a first RIP formed to enable modification of the one or more beam characteristics of the 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 modified beam characteristics of the optical beam within one or more confinement regions. The first RIP and the second RIP are different.

公开(公告)号：US10668537B2

公开(公告)日：2020-06-02

申请号：US15936780

申请日：2018-03-27

Applicant: nLIGHT, Inc.

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

IPC: B22F3/10 ,  B22F3/105 ,  B33Y50/02 ,  B23K26/03 ,  B23K26/06 ,  B23K26/073 ,  B23K26/08 ,  B23K26/342 ,  B23K26/60 ,  G02B27/30 ,  H01S5/022 ,  B33Y30/00 ,  B23K26/0622 ,  B23K26/082 ,  G02B27/09 ,  B29C64/153 ,  H01S5/00 ,  B29C64/268

Abstract: An apparatus for temperature control in additive manufacturing may include: an optical beam source configured to generate one or more optical beams; a homogenizer configured to flatten an irradiance profile of the generated one or more optical beams; and/or an optical system configured to form the generated one or more optical beams so as to match a portion of a shape of a powder bed. The apparatus may include optical beam sources configured to generate two or more optical beams; and/or an optical system configured to form the generated two or more optical beams to match the portion of the shape of the powder bed. The apparatus, using the formed one or more optical beams with the flattened irradiance profile or using the formed two or more optical beams, may be configured to pre-heat the powder bed prior to fusing and/or to post-heat the fused powder bed.

公开(公告)号：US10663769B2

公开(公告)日：2020-05-26

申请号：US15939141

申请日：2018-03-28

Applicant: nLIGHT, Inc.

Inventor： Scott Karlsen ,  Brian Victor ,  Dahv A. V. Kliner ,  Roger Farrow

IPC: G02F1/01 ,  B23K26/067 ,  B23K26/064 ,  G02B6/14 ,  G02B6/12 ,  G02B6/036 ,  G02B6/26 ,  G02B6/028 ,  G02B6/42

Abstract: Systems and methods for modifying an optical beam and adjusting one or more beam characteristics of an optical beam are provided. The system may include a first length of fiber operably coupled with an optical beam source and configured to receive an optical beam therefrom. The system may also include a perturbation device operably coupled with the first length of fiber and configured to modify the optical beam traversing therethrough, and a second length of fiber operably coupled with the first length of fiber and configured to receive the modified optical beam therefrom. The system may further include a beam shaping assembly configured to receive the modified optical beam from the second length of fiber, adjust one or more beam characteristics of the modified optical beam, and direct the adjusted optical beam to a downstream process.

公开(公告)号：US10656330B2

公开(公告)日：2020-05-19

申请号：US15885563

申请日：2018-01-31

Applicant: nLIGHT, Inc.

Inventor： Brian Victor ,  Robert Martinsen ,  Lynn Sheehan ,  Dahv A. V. Kliner ,  Roger Farrow

IPC: G02B6/036 ,  G02B6/02 ,  G02B6/42 ,  B29C48/08 ,  B23K26/21 ,  B23K26/03 ,  G02B6/26 ,  B23K26/342 ,  G02B6/028

Abstract: 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.

公开(公告)号：US10649241B2

公开(公告)日：2020-05-12

申请号：US15934714

申请日：2018-03-23

Applicant: nLIGHT, Inc.

Inventor： David Martin Hemenway ,  Ken Gross ,  Dahv A. V. Kliner ,  Roger Farrow

IPC: G02F1/01 ,  G02B27/09 ,  G02B6/42 ,  G02B6/255 ,  G02B6/26 ,  G02B6/036 ,  G02B6/028 ,  B23K26/06 ,  B23K26/21 ,  B23K26/073 ,  B23K26/38 ,  B23K1/00 ,  B23K26/34 ,  B23K1/005 ,  B23K101/42

Abstract: A method of tailoring beam characteristics of a laser beam during fabrication of an electronic device. The method includes: providing a substrate comprising one or more layers; adjusting one or more characteristics of a laser beam; and impinging the laser beam having the adjusted beam characteristics on the substrate to carry out at least one process step for fabricating the electronic device. The adjusting of the laser beam comprises: perturbing the laser beam propagating within a first length of fiber to adjust the one or more beam characteristics of the laser beam in the first length of fiber or a second length of fiber or a combination thereof, the second length of fiber having two or more confinement regions; coupling the perturbed laser beam into the second length of fiber; and emitting the laser beam having the adjusted beam characteristics from the second length of fiber.