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公开(公告)号：US20230152574A1
公开(公告)日：2023-05-18
申请号：US17986755
申请日：2022-11-14
Applicant: NLIGHT, INC.
IPC: G02B26/10
CPC classification number: G02B26/101 , G02B26/105
Abstract: Some embodiments may include a method assessing whether a dynamic focus module in a three axis galvanometric scanning system (three-axis GSS) is associated with a focus calibration error. The method may include identifying a reference layer associated with a surface of the work piece and positive and negative offset distances each a difference distance above or below the reference layer, respectively, and selecting a target pattern based on the offset distances, wherein the pattern includes an individual line for each offset distance. The method may include commanding the three-axis GSS to draw the target pattern on the work piece, and then assessing whether the dynamic focus module is associated with the focus calibration error by correlating laser marking artifacts on the work piece to ones of the individual lines of the selected pattern. Other embodiments may be disclosed and/or claimed.
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公开(公告)号：US11641089B2
公开(公告)日：2023-05-02
申请号：US17761803
申请日：2020-09-16
Applicant: NLIGHT, INC.
Inventor： Shuang Li , Jiamin Zhang , Manoj Kanskar , Chendong Bai
IPC: H01S3/094 , H01S3/0941
Abstract: 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. Other embodiments may be disclosed and/or claimed.
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公开(公告)号：US11579440B2
公开(公告)日：2023-02-14
申请号：US16817450
申请日：2020-03-12
Applicant: NLIGHT, INC.
Abstract: Some embodiments may include a method assessing whether a dynamic focus module in a three axis galvanometric scanning system (three-axis GSS) is associated with a focus calibration error. The method may include identifying a reference layer associated with a surface of the work piece and positive and negative offset distances each a difference distance above or below the reference layer, respectively, and selecting a target pattern based on the offset distances, wherein the pattern includes an individual line for each offset distance. The method may include commanding the three-axis GSS to draw the target pattern on the work piece, and then assessing whether the dynamic focus module is associated with the focus calibration error by correlating laser marking artifacts on the work piece to ones of the individual lines of the selected pattern. Other embodiments may be disclosed and/or claimed.
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公开(公告)号：US20230036091A1
公开(公告)日：2023-02-02
申请号：US17788677
申请日：2021-01-28
Applicant: NLIGHT, INC.
Inventor： Juan Carlos LUGO , Teemu KOKKI , Roger FARROW , Dahv A.V. KLINER
Abstract: Some embodiments may include a fiber laser including two or more input fibers and an output fiber to deliver a beam to a workpiece, the fiber laser comprising. The fiber laser may include a combiner having ends and a length, wherein the combiner is arranged to release, from its length, a portion of back-reflected light received from the output fiber at an output end of the ends from the combiner, the combiner including: a capillary tube to enclose part of the two or more input fibers at an input end of the ends of the combiner, the capillary tube having ends and a length located between the ends of the capillary tube; and a cladding light stripper (CLS) defined by part of the length of the capillary tube, wherein the CLS provides the release of the portion of the back-reflected light. Other embodiments may be disclosed and/or claimed.
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公开(公告)号：US20220404648A1
公开(公告)日：2022-12-22
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 , B22F12/00 , B23K26/064 , B23K26/073 , G02B6/255 , G02B27/09
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.
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Patent Agency Ranking
公开(公告)号：US11531163B2
公开(公告)日：2022-12-20
申请号：US16294803
申请日：2019-03-06
Applicant: nLIGHT, INC.
Inventor： Dahv A. V. Kliner
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.
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公开(公告)号：US11525968B2
公开(公告)日：2022-12-13
申请号：US16817357
申请日：2020-03-12
Applicant: NLIGHT, INC.
Abstract: Some embodiments may include a method of generating assessment data in a system including a galvanometric scanning system (GSS) having a laser device to generate a laser beam and an X-Y scan head module to position the laser beam on a work piece. The method may include selecting a dimension based on a desired accuracy for validation (and/or a characteristic of an imaging system in embodiments that utilize an imaging system). The method may include commanding the GSS to draw a mark based on a polygon or ellipse of the selected dimension around a predetermined target point associated with the work piece to generate assessment data, and following operation of the GSS based on said commanding, validating a calibration of the GSS using the assessment data (or an image thereof in embodiments that utilize an imaging system). Other embodiments may be disclosed and/or claimed.
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公开(公告)号：US11495942B2
公开(公告)日：2022-11-08
申请号：US16993193
申请日：2020-08-13
Applicant: NLIGHT, INC.
Inventor： Manoj Kanskar , Zhigang Chen , Nicolas Biekert
Abstract: A laser diode, comprising a transverse waveguide that is orthogonal to the lateral waveguide comprising an active layer between an n-type waveguide layer and a p-type waveguide layer, wherein the transverse waveguide is bounded by an n-type cladding layer on an n-side and p-type cladding layer on a p-side and a lateral waveguide bounded in a longitudinal direction at a first end by a high reflector (HR) coated facet and at a second end by a partial reflector (PR) coated facet, the lateral waveguide further comprising a buried higher order mode suppression layer (HOMSL) disposed beneath the p-cladding within the lateral waveguide or on one or both sides of the lateral waveguide or a combination thereof, wherein the HOMSL extends in a longitudinal direction from the HR facet a length less than the distance between the HR facet and the PR facet.
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公开(公告)号：US11424598B2
公开(公告)日：2022-08-23
申请号：US17024363
申请日：2020-09-17
Applicant: nLIGHT, Inc.
Inventor： David C. Dawson , Wolfram Urbanek , David Martin Hemenway
IPC: H01S5/40 , H01S5/024 , H01S5/022 , H01S5/0236 , H01S5/02251 , H01S5/02255 , H01S3/0941 , H01S3/094 , H01S5/00
Abstract: Laser diode packages include a rigid thermally conductive base member that includes a base member surface situated to support at least one laser diode assembly, at least one electrode standoff secured to the base member surface that has at least one electrical lead having a first end and a second end with the first end secured to a lead surface of the electrode standoff, and a lid member that includes a lid portion and a plurality of side portions extending from the lid portion and situated to be secured to the base member so as to define sides of the laser diode package, wherein at least one of the side portions includes a lead aperture situated to receive the second end of the secured electrical lead that is insertable through the lead aperture so that the lid member extends over the base member to enclose the laser diode package.
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公开(公告)号：US20220255296A1
公开(公告)日：2022-08-11
申请号：US17614282
申请日：2020-06-15
Applicant: NLIGHT, INC.
Inventor： Tyson L. LOWDER , Robert Joseph FOLEY , Michael C. NELSON
Abstract: 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.
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