公开(公告)号：US10267993B2

公开(公告)日：2019-04-23

申请号：US15595748

申请日：2017-05-15

Applicant: nLIGHT, INC.

Inventor： Dahv A. V. Kliner

IPC: G02B6/38 ,  G02B6/28 ,  G02B6/036 ,  G02B6/32

Abstract: 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.

公开(公告)号：US10261247B2

公开(公告)日：2019-04-16

申请号：US15702296

申请日：2017-09-12

Applicant: nLIGHT, Inc.

Inventor： Joona Koponen ,  Changgeng Ye ,  Ossi Kimmelma

IPC: G02B6/028 ,  C03B37/012 ,  C03B37/025 ,  C03B37/027 ,  C03B37/028 ,  G02B6/02 ,  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：US10217691B2

公开(公告)日：2019-02-26

申请号：US15238192

申请日：2016-08-16

Applicant: nLIGHT, Inc.

Inventor： Walter R. Sanders ,  Manoj Kanskar

IPC: H01L23/373 ,  H01S5/024 ,  H01L23/36

Abstract: Methods, systems and an apparatus relating to a heat spreader to be coupled to a heat source having a heat source coefficient of thermal expansion (HS CTE), the heat spreader comprising an anisotropic material having a high expansion axis. The heat spreader also including a surface to be coupled to the heat source, wherein the high expansion axis of the anisotropic material is oblique to the surface of the heat spreader and wherein the high expansion axis of the anisotropic material is oriented at a first angle of rotation about a first axis of the heat spreader wherein the first angle of rotation is selected to optimize a match of a first CTE of the heat spreader with the HS CTE.

公开(公告)号：US20190058305A1

公开(公告)日：2019-02-21

申请号：US16112397

申请日：2018-08-24

Applicant: nLight, Inc.

Inventor： David Martin Hemenway ,  Manoj Kanskar

IPC: H01S5/10 ,  H01S5/14 ,  H01S5/022 ,  H01S5/026 ,  H01S5/40 ,  H01S5/187 ,  H01S5/20 ,  H01S5/00 ,  H01S5/12 ,  H01S5/16

Abstract: A high brightness diode laser package includes a plurality of flared laser oscillator waveguides arranged on a stepped surface to emit respective laser beams in one or more emission directions, a plurality of optical components situated to receive the laser beams from the plurality of flared laser oscillator waveguides and to provide the beams in a closely packed relationship, and an optical fiber optically coupled to the closely packed beams for coupling the laser beams out of the diode laser package.

公开(公告)号：US20190044302A1

公开(公告)日：2019-02-07

申请号：US16052517

申请日：2018-08-01

Applicant: nLIGHT, Inc.

Inventor： Manoj Kanskar ,  Zhigang Chen

IPC: H01S5/022 ,  H01S5/323 ,  H01S5/024

Abstract: Laser diode submounts include a SiC substrate on which a thick conductive layer is supplied to use in mounting a laser diode. The thick conductive layer is typically gold or copper, and can be electrically coupled to a base laser that is used to define laser diode couplings.

公开(公告)号：US20180281108A1

公开(公告)日：2018-10-04

申请号：US15939234

申请日：2018-03-28

Applicant: nLIGHT, Inc.

Inventor： Brian VICTOR ,  Christopher RIVERA ,  Dahv A.V. KLINER ,  Roger FARROW

IPC: B23K26/073 ,  H01S3/067 ,  B23K26/06 ,  G02F1/01 ,  G02B6/26 ,  G02B27/09 ,  G02B6/028 ,  G02B6/42 ,  G02B6/255 ,  G02B6/036 ,  B23K26/21

Abstract: An optical beam delivery device includes: a first length of fiber having a first refractive index profile (RIP) to enable modification of one or more beam characteristics of an optical beam having a first beam shape; an a second length of fiber having at least one beam-shaping confinement region and situated to receive the optical beam from the first length of fiber, wherein the at least one beam shape-modifying confinement region has a quadrilateral cross-section.

公开(公告)号：US20180217324A1

公开(公告)日：2018-08-02

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 ,  B23K26/064 ,  B23K26/067

CPC classification number: G02B6/03627 ,  B23K26/064 ,  B23K26/067 ,  G02B6/0281 ,  G02B6/03611 ,  G02B6/03616 ,  G02B2006/12121 ,  G02F1/0115

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：US20180215650A1

公开(公告)日：2018-08-02

申请号：US15938959

申请日：2018-03-28

Applicant: nLIGHT, Inc.

Inventor： Aaron Brown ,  Aaron Ludwig Hodges ,  Dahv A.V. Kliner

IPC: C03B37/15

CPC classification number: C03B37/15 ,  C03B40/00 ,  G02B6/0281 ,  G02B6/03616 ,  G02B6/03627 ,  G02B6/03633 ,  G02B6/03638 ,  G02B6/0365 ,  G02B6/03688 ,  G02B6/14 ,  G02B6/262 ,  G02B6/28 ,  G02B6/4296

Abstract: 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. In some examples, a fiber is secured to a flexible plate to conform to a variable curvature of the flexible plate. In other examples, a variable length of a fiber is pulled or pushed toward a fiber shaping surface, and the length of the fiber or a curvature of the flexible plate provide modification of fiber beam characteristics.

公开(公告)号：US20180214980A1

公开(公告)日：2018-08-02

申请号：US15938925

申请日：2018-03-28

Applicant: nLIGHT, Inc.

Inventor： Ken GROSS ,  Dahv A.V. KLINER ,  Roger FARROW

IPC: B23K26/06 ,  G02B27/09 ,  G02B6/028 ,  G02B6/036

CPC classification number: B23K26/0648 ,  B23K26/064 ,  B23K26/0643 ,  B23K26/067 ,  B23K26/073 ,  G02B6/0281 ,  G02B6/03616 ,  G02B6/03627 ,  G02B6/03633 ,  G02B6/03638 ,  G02B6/0365 ,  G02B6/03688 ,  G02B6/14 ,  G02B6/262 ,  G02B6/4296 ,  G02B27/0927 ,  G02B27/0955 ,  G02B27/0972 ,  G02B27/0994

Abstract: An optical beam delivery device. The device comprises a first length of fiber comprising a first RIP formed to enable the adjusting of one or more beam characteristics of an optical beam by a perturbation device. The optical beam delivery device further comprises a second length of fiber having a proximal end for receiving the optical beam from the first length of fiber and a distal end. The proximal end is coupled to the first length of fiber. The second length of fiber comprises a second RIP formed to confine at least a portion of the optical beam within one or more confinement regions. A beam modification structure is disposed at, or a distance from, the distal end of the second length of fiber. The beam modification structure is configured to modify at least one property of the optical beam chosen from beam divergence properties, beam spatial properties and beam directional characteristics.

公开(公告)号：US20180214950A1

公开(公告)日：2018-08-02

申请号：US15936780

申请日：2018-03-27

Applicant: nLIGHT, Inc.

Inventor： Scott KARLSEN ,  Dahv A.V. KLINER ,  Roger FARROW

IPC: B22F3/105 ,  B33Y30/00 ,  B33Y50/02 ,  B23K26/03 ,  B23K26/06 ,  B23K26/073 ,  B23K26/08 ,  B23K26/342 ,  B23K26/60 ,  H01S5/00 ,  G02B27/30 ,  H01S5/022

CPC classification number: B22F3/1055 ,  B22F2003/1057 ,  B22F2999/00 ,  B23K26/034 ,  B23K26/0604 ,  B23K26/0622 ,  B23K26/0626 ,  B23K26/0648 ,  B23K26/073 ,  B23K26/08 ,  B23K26/082 ,  B23K26/0876 ,  B23K26/342 ,  B23K26/60 ,  B29C64/153 ,  B29C64/268 ,  B33Y30/00 ,  B33Y50/02 ,  G02B27/0927 ,  G02B27/0961 ,  G02B27/30 ,  H01S5/0085 ,  H01S5/02284 ,  B22F2203/11

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.