公开(公告)号：US20180180803A1

公开(公告)日：2018-06-28

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 ,  B29C47/00

CPC classification number: G02B6/03611 ,  B23K26/032 ,  B23K26/034 ,  B23K26/0342 ,  B23K26/21 ,  B23K26/342 ,  B29C48/08 ,  G02B6/021 ,  G02B6/02347 ,  G02B6/02371 ,  G02B6/02395 ,  G02B6/0288 ,  G02B6/03616 ,  G02B6/262 ,  G02B6/4203

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：US20180175588A1

公开(公告)日：2018-06-21

申请号：US15579109

申请日：2016-06-06

Applicant: nLIGHT, Inc.

Inventor： Manoj Kanskar

IPC: H01S5/125 ,  H01S5/10

CPC classification number: H01S5/125 ,  H01S5/06256 ,  H01S5/1003 ,  H01S5/1007 ,  H01S5/1064 ,  H01S5/1085 ,  H01S2301/163

Abstract: A semiconductor laser device is disclosed that includes a laser resonator situated to produce a laser beam, with the laser resonator including an angled distributed Bragg reflector (a-DBR) region including first and second ends defining an a-DBR region length corresponding to a Bragg resonance condition with the first end being uncleaved and including a first mode hop region having a first end optically coupled to the a-DBR region first end and extending a first mode hop region length associated with the a-DBR region length to a second end so as to provide a variable longitudinal mode selection for the laser beam.

公开(公告)号：US20180161873A1

公开(公告)日：2018-06-14

申请号：US15882870

申请日：2018-01-29

Applicant: nLIGHT, Inc.

Inventor： Aaron Brown ,  Keith Kennedy ,  David Dawson ,  Robert Martinsen ,  Roger Farrow ,  Dahv A. V. Kliner

IPC: B22F3/105 ,  G03F7/00

CPC classification number: B22F3/1055 ,  B22F2998/10 ,  B22F2999/00 ,  B29C64/153 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y80/00 ,  G03F7/0037 ,  B22F2003/248 ,  B22F2207/11 ,  B22F2203/11

Abstract: A method of making a three-dimensional object. The method comprises: a) positioning a layer of particles over a build plate; b) exposing the layer of particles to a first laser beam having a first set of beam characteristics, thereby heating the layer sufficiently to fuse at least a portion of the particles together to form a build layer; c) exposing a first region of one of i) the layer of particles or ii) the build layer to a second laser beam having a second set of beam characteristics to provide a first temperature profile for the first region; and d) exposing a second region of one of i) the layer of particles or ii) the build layer to a third laser beam having a third set of beam characteristics to provide a second temperature profile for the second region, the second temperature profile being different than the first temperature profile, wherein both the first region and the second region are in the layer of particles or both the first region and the second region are in the build layer.

公开(公告)号：US09971116B2

公开(公告)日：2018-05-15

申请号：US15687072

申请日：2017-08-25

Applicant: NLIGHT, INC.

Inventor： Joseph J. Emery ,  Aaron Brown ,  Shelly Lin

IPC: G02B6/00 ,  G02B6/44 ,  B23K26/70

CPC classification number: G02B6/4446 ,  B23K26/702 ,  G02B6/444 ,  G02B6/4448 ,  G02B6/4457

Abstract: A laser optical fiber tray is generally presented. In some embodiments, the optical fiber tray comprises an enclosure having an opening in a bottom of the enclosure to accept a feeding fiber exiting from a top of a laser system rack, an opening in a side of the enclosure to allow passage of the feeding fiber out of the enclosure, a removable panel to allow access to an interior of the enclosure and two or more coil guides affixed within the interior of the enclosure, the coil guides spaced apart by a distance that defines a minimum diameter for a loop of the feeding fiber to be contained within the enclosure. In some embodiments, the optical fiber tray is mounted to a top panel of the laser system rack. In some embodiments, the optical fiber tray is mounted to a top panel of an external module which is mounted to a top panel of the laser system rack. Other embodiments are also disclosed and claimed.

公开(公告)号：US20180011243A1

公开(公告)日：2018-01-11

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 ,  C03B37/028 ,  G02B6/02 ,  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：US09865981B2

公开(公告)日：2018-01-09

申请号：US15341776

申请日：2016-11-02

Applicant: NLIGHT, INC.

Inventor： Mitchell Reynolds ,  Aaron W. Brown

IPC: H01S3/067 ,  H01S3/04

CPC classification number: H01S3/06704 ,  H01S3/0405 ,  H01S3/042

Abstract: Packaging for a fiber laser includes a conduit surrounding the fiber laser and a thermally conductive compound filling a gap between the fiber laser and the conduit setting the fiber laser within the conduit. The fiber laser may have a substantially circular first cross section having a first diameter and the conduit may have a substantially circular second cross section having a second diameter larger than the first diameter of the fiber laser. The conduit may have a splice window cut out from a wall of the conduit and optical potting compound may fix a portion of the fiber laser under the splice window.

公开(公告)号：US20170331244A1

公开(公告)日：2017-11-16

申请号：US15596924

申请日：2017-05-16

Applicant: NLIGHT, Inc.

Inventor： Scott R. Karlsen ,  Walter R. Sanders

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

CPC classification number: H01S3/06704 ,  G02B6/24 ,  H01S3/0407 ,  H01S3/0621 ,  H01S3/0941

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：US20170329092A1

公开(公告)日：2017-11-16

申请号：US15594494

申请日：2017-05-12

Applicant: nLIGHT, INC.

Inventor： Walter R SANDERS

IPC: G02B6/42

CPC classification number: G02B6/4268 ,  G02B6/3813 ,  G02B6/3814 ,  G02B6/4251

Abstract: A fiber connector, comprising a housing having a chamber extending in a lengthwise direction from a first end configured to receive a fiber to a second end configured to connect the fiber to a laser processing head and a channel disposed on an exterior surface of the chamber, the channel comprising a double helical structure.

公开(公告)号：US09705289B2

公开(公告)日：2017-07-11

申请号：US14984602

申请日：2015-12-30

Applicant: NLIGHT, INC.

Inventor： Manoj Kanskar ,  Raymond Kirk Price ,  Jay Small ,  David Martin Hemenway ,  Zhigang Chen

IPC: G02B27/30 ,  H01S5/40 ,  H01S5/022 ,  G02B6/42 ,  G02B5/09 ,  G02B5/10 ,  H01S3/08

CPC classification number: H01S5/4012 ,  G02B5/09 ,  G02B5/10 ,  G02B6/4204 ,  G02B6/4296 ,  G02B19/0028 ,  G02B19/0057 ,  G02B27/30 ,  H01S3/08059 ,  H01S5/02248 ,  H01S5/02284 ,  H01S5/4043 ,  H01S5/4062

Abstract: An apparatus includes at least one multijunction diode laser situated to emit a plurality of beams along respective mutually parallel propagation axes, each beam having an associated mutually parallel slow axes and associated collinear fast axes, a fast axis collimator situated to receive and collimate the plurality of beams along the corresponding fast axes so as to produce corresponding fast axis collimated beams that propagate along associated non-parallel axes, and a reflector situated to receive the plurality of fast axis collimated beams and to reflect the beams so that the reflected fast axis collimated beams propagate along substantially parallel axes.

公开(公告)号：US20170194761A1

公开(公告)日：2017-07-06

申请号：US15397719

申请日：2017-01-03

Applicant: NLIGHT, INC.

Inventor： Raymond Kirk PRICE

IPC: H01S3/094 ,  H01S3/16 ,  H01S3/067

CPC classification number: H01S3/094053 ,  G02B6/2835 ,  H01S3/06733 ,  H01S3/06754 ,  H01S3/094007 ,  H01S3/094011 ,  H01S3/09408 ,  H01S3/09415 ,  H01S3/1603

Abstract: Disclosed herein is a fiber pump combiner, comprising, a multi-clad fiber comprising an outer cladding layer and an inner cladding layer, a plurality of tapered trenches formed in the inner cladding layer and a plurality of pump fibers, wherein the plurality of pump fibers are tapered and fused into corresponding ones of the plurality of tapered trenches.